/* roulang page: index */
:root {
            --bg-primary: #0B0F12;
            --bg-panel: #12181D;
            --bg-elevated: #161E24;
            --bg-input: #0F1418;
            --bg-footer: #070A0D;
            --bg-light: #F6F7F9;
            --text-primary: #F5F7FA;
            --text-secondary: #C7D0D9;
            --text-muted: #8895A3;
            --accent: #00E5A0;
            --accent-hover: #00C88A;
            --accent-dim: rgba(0, 229, 160, 0.1);
            --accent-border: rgba(0, 229, 160, 0.4);
            --gold: #F5B740;
            --gold-dim: rgba(245, 183, 64, 0.12);
            --red: #FF5A67;
            --red-dim: rgba(255, 90, 103, 0.12);
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.16);
            --border-accent: rgba(0, 229, 160, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-pill: 999px;
            --shadow-panel: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Roboto Mono', 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --nav-height: 72px;
            --nav-height-mobile: 56px;
            --section-space: 96px;
            --section-space-tablet: 64px;
            --section-space-mobile: 48px;
            --container-width: 1200px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --transition-bounce: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            color: var(--text-primary);
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 15, 18, 0.92);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(7, 10, 13, 0.96);
            border-bottom-color: var(--border-hover);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }

        .nav-right {
            justify-content: flex-end;
        }

        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            z-index: 20;
            font-weight: 700;
            font-size: 22px;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 12px rgba(0, 229, 160, 0.5);
        }

        .nav-logo .logo-dot.gold {
            background: var(--gold);
            box-shadow: 0 0 12px rgba(245, 183, 64, 0.5);
            margin-left: -4px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 2px;
            letter-spacing: 0.01em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--accent);
            transform: translateX(-50%);
            transition: width var(--transition-fast);
            border-radius: 2px;
        }

        .nav-link:hover {
            color: var(--accent);
        }

        .nav-link:hover::after {
            width: 60%;
        }

        .nav-link.active {
            color: var(--accent);
        }

        .nav-link.active::after {
            width: 60%;
        }

        .nav-link.active .active-dot {
            display: inline-block;
            width: 5px;
            height: 5px;
            background: var(--accent);
            border-radius: 50%;
            margin-left: 5px;
            vertical-align: middle;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 25;
        }

        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height-mobile);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 10, 13, 0.98);
            z-index: 999;
            padding: 24px;
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
            opacity: 0;
            visibility: hidden;
            transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu a {
            font-size: 20px;
            padding: 16px 12px;
            border-bottom: 1px solid var(--border);
            color: var(--text-secondary);
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--accent);
            padding-left: 20px;
        }

        /* Hero Section */
        .hero {
            position: relative;
            min-height: 680px;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            padding-bottom: 60px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 15, 18, 0.82);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
            background-size: 56px 56px;
            z-index: 2;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            animation: heroFadeUp 0.6s ease-out forwards;
        }

        @keyframes heroFadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-dim);
            border: 1px solid var(--accent-border);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-badge .pulse-dot {
            width: 7px;
            height: 7px;
            background: var(--red);
            border-radius: 50%;
            animation: pulse 1.6s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

        .hero h1 {
            font-size: 52px;
            line-height: 1.15;
            font-weight: 700;
            letter-spacing: -1.5px;
            margin-bottom: 20px;
            color: var(--text-primary);
            max-width: 640px;
        }

        .hero h1 .highlight {
            color: var(--accent);
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 32px;
            letter-spacing: 0.01em;
        }

        .hero-cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--accent);
            color: #0B0F12;
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 229, 160, 0.2);
            color: #0B0F12;
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 4px 12px rgba(0, 229, 160, 0.15);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border-color: var(--border-hover);
        }

        .btn-outline:hover {
            background: var(--accent-dim);
            border-color: var(--accent-border);
            color: var(--accent);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .hero-invite-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            box-shadow: var(--shadow-panel);
        }

        .invite-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .invite-title .badge-tag {
            font-size: 11px;
            background: var(--gold-dim);
            color: var(--gold);
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        .invite-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .invite-progress-wrap {
            margin-bottom: 18px;
        }

        .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 6px;
            font-weight: 500;
        }

        .progress-label span:last-child {
            color: var(--accent);
            font-family: var(--font-mono);
            font-size: 14px;
        }

        .progress-bar {
            width: 100%;
            height: 8px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-pill);
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent), #00C8A0);
            border-radius: var(--radius-pill);
            transition: width 0.8s ease;
            position: relative;
            min-width: 8px;
        }

        .progress-fill::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 12px;
            height: 12px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 12px rgba(0, 229, 160, 0.6);
        }

        .invite-rewards {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }

        .reward-chip {
            font-size: 12px;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .reward-chip .icon {
            color: var(--gold);
        }

        .hero-invite-cta {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .btn-invite {
            background: var(--accent);
            color: #0B0F12;
            border-radius: var(--radius-md);
            padding: 11px 20px;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }

        .btn-invite:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 160, 0.2);
            color: #0B0F12;
        }

        .btn-invite:active {
            transform: scale(0.98);
        }

        .btn-secondary-invite {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border-hover);
            border-radius: var(--radius-md);
            padding: 11px 20px;
            font-size: 14px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }

        .btn-secondary-invite:hover {
            border-color: var(--accent-border);
            color: var(--accent);
            background: var(--accent-dim);
        }

        .hero-visual {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hero-data-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-panel);
            transition: transform var(--transition-smooth), border-color var(--transition-smooth);
        }

        .hero-data-card:hover {
            border-color: var(--accent-border);
            transform: translateY(-3px);
        }

        .data-card-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .data-card-label .live {
            color: var(--red);
            font-weight: 600;
            font-size: 11px;
            background: var(--red-dim);
            padding: 2px 8px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
        }

        .data-card-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: -1px;
            margin-bottom: 8px;
        }

        .data-card-value .unit {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 400;
            letter-spacing: 0;
        }

        .data-card-trend {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .trend-up {
            color: var(--accent);
            font-family: var(--font-mono);
        }

        .trend-down {
            color: var(--red);
            font-family: var(--font-mono);
        }

        .data-mini-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
        }

        .data-mini-row:last-child {
            border-bottom: none;
        }

        .data-mini-name {
            font-size: 13px;
            color: var(--text-muted);
        }

        .data-mini-value {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
        }

        .data-mini-value.highlight {
            color: var(--accent);
        }

        /* Section Base */
        section {
            padding: var(--section-space) 0;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            margin-bottom: 10px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .section-tag::before {
            content: '';
            display: inline-block;
            width: 18px;
            height: 2px;
            background: var(--accent);
            margin-right: 10px;
            vertical-align: middle;
        }

        .section-title {
            font-size: 32px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
        }

        /* Metrics Section */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: transparent;
            transition: background var(--transition-smooth);
        }

        .metric-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent-border);
            box-shadow: var(--shadow-panel);
        }

        .metric-card:hover::before {
            background: var(--accent);
        }

        .metric-number {
            font-family: var(--font-mono);
            font-size: 48px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: -2px;
            line-height: 1.2;
            transition: color var(--transition-fast);
        }

        .metric-card:hover .metric-number {
            color: var(--accent);
        }

        .metric-unit {
            font-size: 14px;
            color: var(--text-muted);
            margin-left: 2px;
            font-weight: 400;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }

        /* Services Section */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
        }

        .service-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .service-item:nth-child(1) {
            grid-column: span 1;
        }
        .service-item:nth-child(2) {
            grid-column: span 1;
        }
        .service-item:nth-child(3) {
            grid-column: span 1;
        }
        .service-item:nth-child(4) {
            grid-column: span 2;
        }
        .service-item:nth-child(5) {
            grid-column: span 1;
        }
        .service-item:nth-child(6) {
            grid-column: span 2;
        }

        .service-item:hover {
            border-color: var(--accent-border);
            transform: translateY(-4px);
            box-shadow: var(--shadow-panel);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 20px;
        }

        .service-item:hover .service-icon {
            background: var(--accent);
            color: #0B0F12;
        }

        .service-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

        .service-item:hover .service-name {
            color: var(--accent);
        }

        .service-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .service-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 3px 12px;
            margin-right: 6px;
            margin-bottom: 6px;
            transition: all var(--transition-fast);
        }

        .service-item:hover .service-tag {
            border-color: var(--accent-border);
            color: var(--accent);
        }

        /* Compare Section */
        .compare-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-panel);
        }

        .compare-row {
            display: grid;
            grid-template-columns: 180px 1fr;
            gap: 16px;
            align-items: center;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }

        .compare-row:last-child {
            border-bottom: none;
        }

        .compare-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .compare-bar-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .compare-bar {
            flex: 1;
            height: 28px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            overflow: hidden;
            display: flex;
        }

        .compare-fill {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: flex-end;
            padding-right: 10px;
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 600;
            color: #0B0F12;
            border-radius: var(--radius-sm);
            transition: all var(--transition-smooth);
            cursor: default;
        }

        .compare-fill.primary-fill {
            background: linear-gradient(90deg, #00C88A, var(--accent));
        }

        .compare-fill.secondary-fill {
            background: var(--gold);
        }

        .compare-fill.neutral-fill {
            background: rgba(255, 255, 255, 0.25);
        }

        .compare-diff {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            min-width: 50px;
            text-align: right;
        }

        .compare-diff.neg {
            color: var(--red);
        }

        .compare-diff.neutral {
            color: var(--text-muted);
        }

        .compare-scroll {
            overflow-x: auto;
            padding-bottom: 10px;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
        }

        .compare-scroll::-webkit-scrollbar {
            height: 5px;
        }

        .compare-scroll::-webkit-scrollbar-track {
            background: transparent;
        }

        .compare-scroll::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-pill);
        }

        /* Deep Content */
        .deep-content-grid {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 40px;
            align-items: start;
            margin-bottom: 48px;
        }

        .brand-intro-side {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            position: sticky;
            top: calc(var(--nav-height) + 20px);
        }

        .brand-tag {
            display: inline-block;
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
            border-left: 3px solid var(--accent);
            padding-left: 10px;
        }

        .brand-intro-side h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .brand-intro-side p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
        }

        .deep-articles {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .deep-article {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .deep-article:hover {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-panel);
        }

        .deep-article-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }

        .deep-article-body {
            padding: 24px 28px;
        }

        .deep-article-tagline {
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .deep-article h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
            line-height: 1.35;
        }

        .deep-article p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--accent);
            transition: all var(--transition-fast);
        }

        .read-more .arrow {
            transition: transform var(--transition-fast);
            display: inline-block;
        }

        .read-more:hover .arrow {
            transform: translateX(4px);
        }

        /* Collection */
        .collection-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .collection-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .collection-item:hover {
            border-color: var(--accent-border);
            transform: translateY(-3px);
            box-shadow: var(--shadow-panel);
        }

        .collection-item .coll-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .collection-item .coll-count {
            font-size: 13px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        .collection-item .coll-tag {
            display: inline-block;
            font-size: 11px;
            padding: 2px 8px;
            border-radius: var(--radius-pill);
            margin-top: 8px;
            border: 1px solid var(--border);
            color: var(--text-secondary);
        }

        /* Recommend */
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .recommend-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .recommend-card:hover {
            border-color: var(--accent-border);
            transform: translateY(-4px);
            box-shadow: var(--shadow-panel);
        }

        .recommend-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }

        .recommend-card-body {
            padding: 18px 20px;
        }

        .recommend-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .recommend-card-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* News */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 72px 1fr;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-fast);
        }

        .news-item:first-child {
            border-top: 1px solid var(--border);
        }

        .news-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .news-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: var(--gold-dim);
            border: 1px solid rgba(245, 183, 64, 0.25);
            border-radius: var(--radius-md);
            padding: 10px 6px;
            height: fit-content;
        }

        .news-date .day {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 700;
            color: var(--gold);
            line-height: 1.1;
        }

        .news-date .month {
            font-size: 12px;
            color: var(--gold);
            font-weight: 500;
        }

        .news-content h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            transition: color var(--transition-fast);
        }

        .news-content h4:hover {
            color: var(--accent);
        }

        .news-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Ranking */
        .ranking-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
        }

        .ranking-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            gap: 16px;
        }

        .ranking-row:last-child {
            border-bottom: none;
        }

        .rank-pos {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .rank-pos.top {
            background: var(--accent-dim);
            color: var(--accent);
            border: 1px solid var(--accent-border);
        }

        .rank-name {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            flex: 1;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .rank-value {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            flex-shrink: 0;
        }

        .rank-value.hot {
            color: var(--red);
        }
        .rank-value.warm {
            color: var(--gold);
        }
        .rank-value.cool {
            color: var(--accent);
        }

        /* Changelog */
        .changelog {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
        }

        .changelog-item {
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            display: grid;
            grid-template-columns: 110px 1fr;
            gap: 20px;
        }

        .changelog-item:last-child {
            border-bottom: none;
        }

        .changelog-version {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
        }

        .changelog-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .changelog-desc strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-button {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 8px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            text-align: left;
            background: transparent;
            transition: all var(--transition-fast);
            gap: 16px;
        }

        .faq-button:hover {
            color: var(--accent);
            background: rgba(255, 255, 255, 0.02);
        }

        .faq-button .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-hover);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            color: var(--accent);
            transition: all var(--transition-smooth);
        }

        .faq-button.open .faq-icon {
            transform: rotate(45deg);
            border-color: var(--accent-border);
            background: var(--accent-dim);
        }

        .faq-button .faq-num {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
            flex-shrink: 0;
            min-width: 28px;
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
            padding: 0 8px;
        }

        .faq-content p {
            padding: 0 0 20px 36px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
        }

        /* Form Section */
        .form-section {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            overflow: hidden;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
        }

        .form-left {
            padding: 40px;
            background: rgba(0, 0, 0, 0.25);
            border-right: 1px solid var(--border);
        }

        .form-left h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .form-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .form-highlight-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .form-highlight-list li {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 8px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .form-highlight-list li .check {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--accent-dim);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            flex-shrink: 0;
        }

        .form-right {
            padding: 40px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            background: var(--bg-input);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            font-size: 15px;
            color: var(--text-primary);
            transition: border-color var(--transition-fast);
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--accent);
        }

        .form-group textarea {
            min-height: 90px;
            resize: vertical;
        }

        .btn-submit {
            width: 100%;
            background: var(--accent);
            color: #0B0F12;
            font-size: 16px;
            font-weight: 600;
            padding: 14px 24px;
            border-radius: var(--radius-md);
            border: none;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }

        .btn-submit:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 229, 160, 0.2);
            color: #0B0F12;
        }

        .btn-submit:active {
            transform: scale(0.98);
            box-shadow: 0 4px 12px rgba(0, 229, 160, 0.15);
        }

        .btn-submit:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none;
        }

        .form-privacy {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 10px;
            text-align: center;
        }

        /* Share & Save */
        .share-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            text-align: center;
        }

        .share-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .share-card p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .share-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .share-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: all var(--transition-fast);
            color: var(--text-secondary);
        }

        .share-btn:hover {
            border-color: var(--accent-border);
            color: var(--accent);
            background: var(--accent-dim);
            transform: translateY(-3px);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border);
            padding-top: 56px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border);
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 7px;
        }

        .footer-brand h4 .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-muted);
            padding: 6px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-links-row {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

        /* Responsive */
        @media (max-width: 1200px) {
            .container {
                max-width: 960px;
            }
            .services-grid {
                grid-template-columns: 1fr 1fr;
            }
            .service-item:nth-child(1),
            .service-item:nth-child(2),
            .service-item:nth-child(3),
            .service-item:nth-child(4),
            .service-item:nth-child(5),
            .service-item:nth-child(6) {
                grid-column: span 1;
            }
            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
            .collection-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .recommend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            section {
                padding: var(--section-space-tablet) 0;
            }
        }

        @media (max-width: 992px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .nav-logo {
                position: static;
                transform: none;
                flex: 1;
                justify-content: center;
                font-size: 20px;
            }
            .nav-inner {
                gap: 8px;
            }
            .hero {
                min-height: auto;
                padding-top: calc(var(--nav-height-mobile) + 40px);
                padding-bottom: 40px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero h1 {
                font-size: 36px;
                letter-spacing: -0.8px;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .brand-intro-side {
                position: static;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-left {
                border-right: none;
                border-bottom: 1px solid var(--border);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: var(--section-space-mobile) 0;
            }
            .section-title {
                font-size: 26px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .metric-number {
                font-size: 34px;
                letter-spacing: -1px;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .compare-row {
                grid-template-columns: 120px 1fr;
                gap: 10px;
            }
            .compare-label {
                font-size: 12px;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 16px 0;
            }
            .news-date {
                flex-direction: row;
                gap: 8px;
                padding: 6px 12px;
                align-items: center;
                width: fit-content;
            }
            .news-date .day {
                font-size: 20px;
            }
            .collection-grid {
                grid-template-columns: 1fr;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
            }
            .changelog-item {
                grid-template-columns: 1fr;
                gap: 6px;
            }
            .hero-cta {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-invite-cta {
                flex-direction: column;
            }
            .btn-invite,
            .btn-secondary-invite {
                width: 100%;
                justify-content: center;
            }
            .form-left,
            .form-right {
                padding: 24px 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-links-row {
                justify-content: center;
            }
            .share-buttons {
                gap: 8px;
            }
            .share-btn {
                width: 42px;
                height: 42px;
                font-size: 16px;
            }
            .faq-button {
                font-size: 15px;
                padding: 16px 4px;
            }
            .faq-content p {
                padding-left: 0;
                padding-bottom: 16px;
            }
        }

        @media (max-width: 560px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 30px;
                letter-spacing: -0.5px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .metric-card {
                padding: 18px 16px;
            }
            .metric-number {
                font-size: 38px;
            }
            .service-item {
                padding: 20px;
            }
            .compare-card {
                padding: 20px 16px;
            }
            .compare-row {
                grid-template-columns: 1fr;
                gap: 6px;
            }
            .deep-article-body {
                padding: 18px 20px;
            }
            .deep-article-img {
                height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .ranking-card {
                padding: 18px 16px;
            }
            .share-card {
                padding: 20px 16px;
            }
            .form-section {
                border-radius: var(--radius-lg);
            }
        }

        /* Reduced motion */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
            .hero-content {
                animation: none;
            }
            .progress-fill {
                transition: none;
            }
            .progress-fill::after {
                animation: none;
            }
            .hero-badge .pulse-dot {
                animation: none;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B0F12;
            --bg-panel: #12181D;
            --bg-elevated: #161E24;
            --bg-input: #0F1418;
            --bg-footer: #070A0D;
            --bg-light: #F6F7F9;
            --text-primary: #F5F7FA;
            --text-secondary: #C7D0D9;
            --text-muted: #8895A3;
            --accent: #00E5A0;
            --accent-hover: #00C88A;
            --accent-dim: rgba(0, 229, 160, 0.1);
            --accent-border: rgba(0, 229, 160, 0.4);
            --gold: #F5B740;
            --gold-dim: rgba(245, 183, 64, 0.12);
            --red: #FF5A67;
            --red-dim: rgba(255, 90, 103, 0.12);
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.16);
            --border-accent: rgba(0, 229, 160, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-pill: 999px;
            --shadow-panel: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Roboto Mono', 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --nav-height: 72px;
            --nav-height-mobile: 56px;
            --section-space: 96px;
            --section-space-tablet: 64px;
            --section-space-mobile: 48px;
            --container-width: 1200px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --transition-bounce: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            color: var(--text-primary);
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 15, 18, 0.92);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(7, 10, 13, 0.96);
            border-bottom-color: var(--border-hover);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }
        .nav-right {
            justify-content: flex-end;
        }
        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            z-index: 20;
            font-weight: 700;
            font-size: 22px;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 12px rgba(0, 229, 160, 0.5);
        }
        .nav-logo .logo-dot.gold {
            background: var(--gold);
            box-shadow: 0 0 12px rgba(245, 183, 64, 0.5);
            margin-left: -4px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width var(--transition-fast);
        }
        .nav-link:hover {
            color: var(--accent);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--accent);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 30;
            position: relative;
            background: transparent;
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            transition: all var(--transition-smooth);
            border-radius: 1px;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 10, 13, 0.97);
            z-index: 990;
            padding-top: var(--nav-height-mobile);
            transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
            opacity: 0;
            visibility: hidden;
        }
        .mobile-nav.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-nav-inner {
            display: flex;
            flex-direction: column;
            padding: 32px 24px;
            gap: 20px;
            overflow-y: auto;
            height: 100%;
        }
        .mobile-nav-link {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            transition: color var(--transition-fast);
        }
        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            color: var(--accent);
        }
        .mobile-nav-logo {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mobile-nav-logo .logo-dot {
            width: 12px;
            height: 12px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .mobile-nav-logo .logo-dot.gold {
            background: var(--gold);
            margin-left: -4px;
        }
        main {
            flex: 1;
        }
        .page-banner {
            position: relative;
            height: 340px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            margin-top: var(--nav-height);
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 15, 18, 0.85) 0%, rgba(11, 15, 18, 0.55) 50%, rgba(11, 15, 18, 0.3) 100%);
            z-index: 1;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 1px, transparent 1px, transparent 40px),
                repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 1px, transparent 1px, transparent 40px);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .banner-content {
            max-width: 720px;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-dim);
            border: 1px solid var(--accent-border);
            color: var(--accent);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .banner-badge .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.5);
            }
        }
        .banner-title {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.15;
            letter-spacing: -1.5px;
            margin: 0 0 16px;
            color: var(--text-primary);
        }
        .banner-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 600px;
            margin: 0;
        }
        .section {
            padding: var(--section-space) 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .section-label::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin: 0 0 16px;
            color: var(--text-primary);
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin: 0 0 32px;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .metric-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-panel);
        }
        .metric-card:hover::before {
            opacity: 1;
        }
        .metric-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: var(--accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 18px;
            color: var(--accent);
        }
        .metric-value {
            font-family: var(--font-mono);
            font-size: 44px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: -1px;
        }
        .metric-value .unit {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 400;
            letter-spacing: 0;
            margin-left: 4px;
        }
        .metric-label {
            font-size: 15px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            margin-top: 8px;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
        }
        .metric-trend.up {
            color: var(--accent);
            background: var(--accent-dim);
        }
        .metric-trend.down {
            color: var(--red);
            background: var(--red-dim);
        }
        .dashboard-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }
        .dashboard-panel {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-panel);
        }
        .dashboard-panel-full {
            grid-column: 1 / -1;
        }
        .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .panel-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .panel-title i {
            color: var(--accent);
            font-size: 16px;
        }
        .panel-badge {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--gold-dim);
            color: var(--gold);
            letter-spacing: 0.3px;
        }
        .trend-chart {
            width: 100%;
            height: 180px;
            background: var(--bg-input);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .trend-chart svg {
            width: 100%;
            height: 100%;
            display: block;
        }
        .trend-line {
            fill: none;
            stroke-width: 3;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .trend-area {
            opacity: 0.15;
        }
        .trend-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 8px;
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }
        .data-bar-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 16px;
        }
        .data-bar-item {
            display: grid;
            grid-template-columns: 100px 1fr 60px;
            gap: 12px;
            align-items: center;
        }
        .data-bar-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            white-space: nowrap;
        }
        .data-bar-track {
            height: 10px;
            background: var(--bg-input);
            border-radius: var(--radius-pill);
            overflow: hidden;
            position: relative;
        }
        .data-bar-fill {
            height: 100%;
            border-radius: var(--radius-pill);
            transition: width var(--transition-bounce);
        }
        .data-bar-fill.accent {
            background: var(--accent);
        }
        .data-bar-fill.gold {
            background: var(--gold);
        }
        .data-bar-fill.red {
            background: var(--red);
        }
        .data-bar-value {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            text-align: right;
            color: var(--text-primary);
        }
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
        }
        .compare-table th,
        .compare-table td {
            padding: 12px 16px;
            text-align: left;
            font-size: 14px;
            border-bottom: 1px solid var(--border);
        }
        .compare-table th {
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 13px;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--border-hover);
        }
        .compare-table td {
            color: var(--text-primary);
            font-family: var(--font-mono);
        }
        .compare-table tr:hover td {
            background: rgba(255, 255, 255, 0.03);
        }
        .content-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all var(--transition-smooth);
        }
        .content-card:hover {
            border-color: var(--border-hover);
        }
        .content-card h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 12px;
            color: var(--text-primary);
        }
        .content-card p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin: 0 0 12px;
        }
        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-fast);
        }
        .read-more i {
            transition: transform var(--transition-fast);
        }
        .read-more:hover {
            color: var(--accent-hover);
        }
        .read-more:hover i {
            transform: translateX(4px);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-item.active {
            border-color: var(--border-accent);
        }
        .faq-btn {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            gap: 16px;
            text-align: left;
            transition: background var(--transition-fast);
            min-height: 44px;
        }
        .faq-btn:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-btn .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 14px;
            transition: transform var(--transition-smooth);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
        }
        .faq-body-inner {
            padding: 0 20px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .cta-section {
            padding: var(--section-space) 0;
        }
        .cta-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            box-shadow: var(--shadow-panel);
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--gold), var(--accent));
        }
        .cta-left h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 16px;
            line-height: 1.3;
        }
        .cta-left p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 24px;
        }
        .cta-highlights {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cta-highlights li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: var(--text-secondary);
        }
        .cta-highlights li i {
            color: var(--accent);
            font-size: 14px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            background: var(--bg-input);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            font-size: 15px;
            color: var(--text-primary);
            transition: border-color var(--transition-fast);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--accent);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #0B0F12;
            font-weight: 700;
            font-size: 16px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            filter: brightness(1.05);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--accent);
            font-weight: 600;
            font-size: 16px;
            padding: 13px 26px;
            border-radius: var(--radius-md);
            border: 1px solid var(--accent-border);
            cursor: pointer;
            transition: all var(--transition-smooth);
        }
        .btn-outline:hover {
            background: var(--accent-dim);
            border-color: var(--accent);
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border);
            padding: 64px 0 0;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--border);
        }
        .footer-brand h4 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand h4 .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 8px;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom p {
            margin: 0;
        }
        .footer-links-row {
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .footer-links-row a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links-row a:hover {
            color: var(--accent);
        }
        .image-container {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            position: relative;
        }
        .image-container img {
            width: 100%;
            height: auto;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        @media (max-width: 1200px) {
            .container {
                max-width: 960px;
            }
            .section {
                padding: var(--section-space-tablet) 0;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .banner-title {
                font-size: 38px;
            }
        }
        @media (max-width: 992px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-nav {
                display: block;
            }
            .nav-logo {
                position: static;
                transform: none;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .page-banner {
                height: 260px;
                margin-top: var(--nav-height-mobile);
            }
            .banner-title {
                font-size: 32px;
            }
            .dashboard-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-card {
                grid-template-columns: 1fr;
                padding: 32px;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-space: 64px;
            }
            .section {
                padding: 48px 0;
            }
            .container {
                padding: 0 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .data-bar-item {
                grid-template-columns: 70px 1fr 50px;
                gap: 8px;
            }
            .data-bar-label {
                font-size: 12px;
            }
            .cta-card {
                padding: 24px;
            }
            .section-title {
                font-size: 26px;
            }
        }
        @media (max-width: 560px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .banner-title {
                font-size: 26px;
                letter-spacing: -0.5px;
            }
            .banner-subtitle {
                font-size: 15px;
            }
            .page-banner {
                height: 220px;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
            }
            .faq-btn {
                padding: 14px 16px;
                font-size: 15px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .compare-table th,
            .compare-table td {
                padding: 8px 10px;
                font-size: 12px;
            }
            .data-bar-item {
                grid-template-columns: 55px 1fr 45px;
                gap: 6px;
            }
            .data-bar-value {
                font-size: 12px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
            .pulse-dot {
                animation: none !important;
            }
            .metric-card:hover {
                transform: none;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B0F12;
            --bg-panel: #12181D;
            --bg-elevated: #161E24;
            --bg-input: #0F1418;
            --bg-footer: #070A0D;
            --bg-light: #F6F7F9;
            --text-primary: #F5F7FA;
            --text-secondary: #C7D0D9;
            --text-muted: #8895A3;
            --accent: #00E5A0;
            --accent-hover: #00C88A;
            --accent-dim: rgba(0, 229, 160, 0.1);
            --accent-border: rgba(0, 229, 160, 0.4);
            --gold: #F5B740;
            --gold-dim: rgba(245, 183, 64, 0.12);
            --red: #FF5A67;
            --red-dim: rgba(255, 90, 103, 0.12);
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.16);
            --border-accent: rgba(0, 229, 160, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-pill: 999px;
            --shadow-panel: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Roboto Mono', 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --nav-height: 72px;
            --nav-height-mobile: 56px;
            --section-space: 96px;
            --section-space-tablet: 64px;
            --section-space-mobile: 48px;
            --container-width: 1200px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --transition-bounce: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            color: var(--text-primary);
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 15, 18, 0.92);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-smooth), border-color var(--transition-smooth), height var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(7, 10, 13, 0.96);
            border-bottom-color: var(--border-hover);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }
        .nav-right {
            justify-content: flex-end;
        }
        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            z-index: 20;
            font-weight: 700;
            font-size: 22px;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 12px rgba(0, 229, 160, 0.5);
        }
        .nav-logo .logo-dot.gold {
            background: var(--gold);
            box-shadow: 0 0 12px rgba(245, 183, 64, 0.5);
            margin-left: -4px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width var(--transition-fast);
        }
        .nav-link:hover {
            color: var(--accent);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--accent);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            z-index: 30;
            background: transparent;
            border: 1px solid var(--border);
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: all var(--transition-fast);
        }
        .hamburger:hover {
            border-color: var(--accent);
            background: var(--accent-dim);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        /* Mobile Drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height-mobile);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 10, 13, 0.98);
            z-index: 999;
            padding: 32px 24px;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            gap: 20px;
            transform: translateX(100%);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer a {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-secondary);
            padding: 8px 0;
            transition: color var(--transition-fast);
        }
        .mobile-drawer a:hover {
            color: var(--accent);
        }
        .mobile-drawer a.active {
            color: var(--accent);
        }
        /* Page Hero */
        .page-hero {
            padding-top: calc(var(--nav-height) + 60px);
            padding-bottom: 48px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 15, 18, 0.72) 0%, rgba(11, 15, 18, 0.88) 100%);
            z-index: 1;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(0, 229, 160, 0.03) 40px, rgba(0, 229, 160, 0.03) 41px), repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(0, 229, 160, 0.03) 40px, rgba(0, 229, 160, 0.03) 41px);
            z-index: 1;
            pointer-events: none;
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .page-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-dim);
            border: 1px solid var(--accent-border);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
        }
        .page-hero-badge .pulse {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(0, 229, 160, 0.5);
            }
            70% {
                box-shadow: 0 0 0 8px rgba(0, 229, 160, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(0, 229, 160, 0);
            }
        }
        .page-hero h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.15;
            letter-spacing: -1.5px;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .page-hero h1 .highlight {
            color: var(--accent);
        }
        .page-hero p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.8;
        }
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-top: 28px;
        }
        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .filter-btn:hover {
            border-color: var(--accent-border);
            color: var(--accent);
        }
        .filter-btn.active {
            background: var(--accent);
            color: #0B0F12;
            border-color: var(--accent);
            font-weight: 600;
        }
        .filter-date-input {
            background: var(--bg-input);
            border: 1px solid var(--border);
            color: var(--text-primary);
            font-size: 14px;
            padding: 10px 16px;
            border-radius: var(--radius-md);
            width: 160px;
            transition: border-color var(--transition-fast);
        }
        .filter-date-input:focus {
            border-color: var(--accent);
        }
        /* Section base */
        .section {
            padding: var(--section-space) 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .section-label .line {
            width: 24px;
            height: 2px;
            background: var(--accent);
            margin-right: 10px;
            display: inline-block;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }
        /* Match data rows */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .match-row {
            display: grid;
            grid-template-columns: 140px 1fr 160px 140px;
            align-items: center;
            gap: 20px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .match-row:hover {
            border-color: var(--accent-border);
            background: var(--bg-elevated);
            box-shadow: var(--shadow-panel);
        }
        .match-date {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .match-date .day {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
        }
        .match-date .month {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            text-transform: uppercase;
        }
        .match-teams {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .match-teams .team {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .match-teams .vs {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
            padding: 4px 10px;
            background: var(--bg-input);
            border-radius: var(--radius-sm);
        }
        .match-teams .league-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--gold);
            background: var(--gold-dim);
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        .match-score {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
        }
        .match-score .score-sep {
            color: var(--text-muted);
            font-weight: 400;
            font-size: 18px;
        }
        .match-index-change {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 4px;
        }
        .index-up {
            color: var(--accent);
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
        }
        .index-down {
            color: var(--red);
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
        }
        .index-flat {
            color: var(--text-muted);
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 500;
        }
        .match-status {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        .status-live {
            color: var(--red);
            background: var(--red-dim);
        }
        .status-finished {
            color: var(--text-muted);
            background: rgba(136, 149, 163, 0.1);
        }
        .status-upcoming {
            color: var(--accent);
            background: var(--accent-dim);
        }
        /* Mini stats cards */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            border-color: var(--accent-border);
            transform: translateY(-4px);
            box-shadow: var(--shadow-panel);
        }
        .stat-card .stat-value {
            font-family: var(--font-mono);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-primary);
        }
        .stat-card .stat-unit {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
            margin-left: 4px;
        }
        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 8px;
            line-height: 1.6;
        }
        .stat-card .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            margin-top: 12px;
            color: var(--accent);
        }
        /* Trend bars */
        .trend-section {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
        }
        .trend-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .trend-bar-group {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .trend-bar-item {
            display: grid;
            grid-template-columns: 120px 1fr 70px;
            align-items: center;
            gap: 16px;
        }
        .trend-bar-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
        }
        .trend-bar-track {
            height: 10px;
            background: var(--bg-input);
            border-radius: var(--radius-pill);
            overflow: hidden;
        }
        .trend-bar-fill {
            height: 100%;
            border-radius: var(--radius-pill);
            background: var(--accent);
            transition: width 0.6s ease;
            min-width: 4px;
        }
        .trend-bar-fill.gold {
            background: var(--gold);
        }
        .trend-bar-value {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: right;
        }
        /* Deep content */
        .deep-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .deep-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            aspect-ratio: 16/9;
            background: var(--bg-panel);
        }
        .deep-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .deep-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .deep-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .deep-text .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            transition: all var(--transition-fast);
        }
        .deep-text .read-more .arrow {
            transition: transform var(--transition-fast);
        }
        .deep-text .read-more:hover .arrow {
            transform: translateX(4px);
        }
        /* Scenario cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .scenario-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition-smooth);
        }
        .scenario-card:hover {
            border-color: var(--accent-border);
            background: var(--bg-elevated);
            transform: translateY(-3px);
        }
        .scenario-card .icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: var(--accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 20px;
            color: var(--accent);
        }
        .scenario-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .step-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-smooth);
        }
        .step-item:hover {
            border-color: var(--accent-border);
        }
        .step-num {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            display: block;
            margin-bottom: 10px;
        }
        .step-item h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-item.active {
            border-color: var(--accent-border);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            background: transparent;
            width: 100%;
            text-align: left;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--accent);
            flex-shrink: 0;
            margin-left: 12px;
            transition: transform var(--transition-smooth);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 20px 18px;
        }
        /* CTA */
        .cta-wrapper {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            padding: 48px;
            position: relative;
        }
        .cta-wrapper::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--gold));
        }
        .cta-left h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-left p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cta-point {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .cta-point .check {
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
        }
        .cta-right form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .cta-right .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .cta-right input,
        .cta-right textarea,
        .cta-right select {
            background: var(--bg-input);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color var(--transition-fast);
            width: 100%;
        }
        .cta-right input::placeholder,
        .cta-right textarea::placeholder {
            color: var(--text-muted);
        }
        .cta-right input:focus,
        .cta-right textarea:focus,
        .cta-right select:focus {
            border-color: var(--accent);
        }
        .cta-right textarea {
            min-height: 100px;
            resize: vertical;
        }
        .cta-right select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238895A3' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L2 5h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 40px;
        }
        .cta-submit {
            background: var(--accent);
            color: #0B0F12;
            font-size: 16px;
            font-weight: 700;
            padding: 14px 24px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            width: 100%;
            cursor: pointer;
        }
        .cta-submit:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }
        .cta-submit:active {
            transform: scale(0.98);
        }
        .cta-privacy {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 8px;
        }
        /* Footer */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-brand h4 .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-links-row {
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .footer-links-row a {
            font-size: 12px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links-row a:hover {
            color: var(--accent);
        }
        /* Responsive */
        @media (max-width: 1200px) {
            :root {
                --container-width: 960px;
                --section-space: 72px;
            }
            .nav-left,
            .nav-right {
                gap: 20px;
            }
            .nav-link {
                font-size: 14px;
            }
            .match-row {
                grid-template-columns: 110px 1fr 130px 120px;
                gap: 14px;
                padding: 14px 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 992px) {
            :root {
                --container-width: 720px;
                --section-space: 56px;
                --nav-height: 56px;
            }
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-logo {
                position: static;
                transform: none;
                font-size: 20px;
            }
            .hamburger {
                display: flex;
            }
            .mobile-drawer {
                display: flex;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .site-header {
                height: var(--nav-height-mobile);
            }
            .page-hero {
                padding-top: calc(var(--nav-height-mobile) + 36px);
                min-height: 300px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
            .deep-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 32px;
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .match-row {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 16px;
            }
            .match-row .match-index-change {
                align-items: flex-start;
            }
            .match-row .match-score {
                order: 2;
            }
            .match-row .match-date {
                flex-direction: row;
                align-items: center;
                gap: 8px;
                order: 1;
            }
            .match-row .match-teams {
                order: 0;
            }
            .match-row .match-index-change {
                order: 3;
            }
            .trend-bar-item {
                grid-template-columns: 90px 1fr 60px;
                gap: 10px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --container-width: 100%;
                --section-space: 44px;
            }
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 16px;
            }
            .stat-card .stat-value {
                font-size: 30px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .cta-right .form-row {
                grid-template-columns: 1fr;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-date-input {
                width: 100%;
            }
            .trend-bar-item {
                grid-template-columns: 70px 1fr 50px;
                gap: 8px;
            }
            .trend-section {
                padding: 20px;
            }
        }
        @media (max-width: 560px) {
            .section-title {
                font-size: 22px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .match-teams .team {
                font-size: 14px;
            }
            .match-score {
                font-size: 18px;
            }
            .cta-wrapper {
                padding: 20px;
            }
            .cta-left h3 {
                font-size: 20px;
            }
            .footer-brand p {
                font-size: 12px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
            .match-row:hover {
                transform: none;
            }
            .stat-card:hover {
                transform: none;
            }
            .cta-submit:hover {
                transform: none;
            }
        }

/* roulang page: category3 */
/* ============ roulang design system ============ */
:root {
  --bg-primary: #0B0F12;
  --bg-panel: #12181D;
  --bg-elevated: #161E24;
  --bg-input: #0F1418;
  --bg-footer: #070A0D;
  --bg-light: #F6F7F9;
  --text-primary: #F5F7FA;
  --text-secondary: #C7D0D9;
  --text-muted: #8895A3;
  --accent: #00E5A0;
  --accent-hover: #00C88A;
  --accent-dim: rgba(0, 229, 160, 0.1);
  --accent-border: rgba(0, 229, 160, 0.4);
  --gold: #F5B740;
  --gold-dim: rgba(245, 183, 64, 0.12);
  --red: #FF5A67;
  --red-dim: rgba(255, 90, 103, 0.12);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --border-accent: rgba(0, 229, 160, 0.35);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 999px;
  --shadow-panel: 0 18px 40px rgba(0, 0, 0, 0.35);
  --shadow-light: 0 12px 32px rgba(0, 0, 0, 0.08);
  --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Roboto Mono', 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
  --nav-height: 72px;
  --nav-height-mobile: 56px;
  --section-space: 96px;
  --section-space-tablet: 64px;
  --section-space-mobile: 48px;
  --container-width: 1200px;
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s ease;
  --transition-bounce: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  margin: 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent);
}

button,
input,
textarea,
select {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--text-primary);
  outline: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  transition: all var(--transition-fast);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ Header / Navigation ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(11, 15, 18, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-smooth), border-color var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(7, 10, 13, 0.96);
  border-bottom-color: var(--border-hover);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  position: relative;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}

.nav-right {
  justify-content: flex-end;
}

.nav-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo .logo-dot {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 12px rgba(0, 229, 160, 0.5);
}

.nav-logo .logo-dot.gold {
  background: var(--gold);
  box-shadow: 0 0 12px rgba(245, 183, 64, 0.5);
  margin-left: -4px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--accent);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--accent);
}

.nav-link.active::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transform: translateX(100%);
  transition: transform var(--transition-bounce);
  opacity: 0;
  pointer-events: none;
}

.mobile-drawer.open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-drawer a {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  padding: 6px 0;
}

.mobile-drawer a:hover,
.mobile-drawer a.active {
  color: var(--accent);
}

/* ============ Page Banner ============ */
.page-banner {
  position: relative;
  padding: var(--nav-height) 0 0 0;
  min-height: 340px;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,15,18,0.55) 0%, rgba(11,15,18,0.85) 100%);
  z-index: 1;
}

.page-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0,229,160,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0,229,160,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: 1;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, transparent 100%);
}

.page-banner .container {
  position: relative;
  z-index: 2;
  padding-top: 40px;
  padding-bottom: 40px;
}

.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.banner-badge .pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,229,160,0.5); }
  50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(0,229,160,0); }
}

.page-banner h1 {
  font-size: 44px;
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -1.5px;
  color: var(--text-primary);
  margin: 0 0 16px 0;
  max-width: 640px;
}

.page-banner .banner-sub {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin: 0;
}

/* ============ Main Layout ============ */
.main-content {
  padding: 48px 0 var(--section-space) 0;
}

.analysis-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
  align-items: start;
}

/* ============ Article List ============ */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.article-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.article-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-panel);
}

.article-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.article-card:hover::before {
  opacity: 1;
}

.article-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.article-tag {
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: var(--accent-dim);
  color: var(--accent);
  white-space: nowrap;
}

.article-tag.gold {
  background: var(--gold-dim);
  color: var(--gold);
}

.article-tag.red {
  background: var(--red-dim);
  color: var(--red);
}

.article-date {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 400;
}

.article-card h2 {
  font-size: 20px;
  line-height: 1.4;
  font-weight: 600;
  margin: 0 0 10px 0;
  color: var(--text-primary);
}

.article-card h2 a {
  color: inherit;
  transition: color var(--transition-fast);
}

.article-card h2 a:hover {
  color: var(--accent);
}

.article-excerpt {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 16px 0;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.article-meta .read-more {
  margin-left: auto;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.article-meta .read-more:hover {
  gap: 10px;
  color: var(--accent-hover);
}

/* ============ Sidebar ============ */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}

.sidebar-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
}

.sidebar-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 16px 0;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-card h3::before {
  content: '';
  width: 4px;
  height: 16px;
  background: var(--accent);
  border-radius: 2px;
}

.trend-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.trend-tag {
  font-size: 13px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: default;
  white-space: nowrap;
}

.trend-tag:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
}

.trend-tag.hot {
  background: var(--gold-dim);
  border-color: rgba(245, 183, 64, 0.35);
  color: var(--gold);
}

.trend-tag.up {
  background: var(--accent-dim);
  border-color: var(--accent-border);
  color: var(--accent);
}

.trend-tag.down {
  background: var(--red-dim);
  border-color: rgba(255, 90, 103, 0.35);
  color: var(--red);
}

.mini-chart {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chart-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.chart-row .chart-label {
  color: var(--text-secondary);
  min-width: 60px;
  flex-shrink: 0;
}

.chart-row .chart-bar-track {
  flex: 1;
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
}

.chart-row .chart-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  transition: width 0.6s ease;
}

.chart-row .chart-bar-fill.gold {
  background: var(--gold);
}

.chart-row .chart-bar-fill.red {
  background: var(--red);
}

.chart-row .chart-value {
  font-family: var(--font-mono);
  color: var(--text-primary);
  font-size: 13px;
  min-width: 40px;
  text-align: right;
}

.sidebar-note {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ============ Insight Section ============ */
.insight-section {
  margin-top: 48px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.insight-section h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 16px 0;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.insight-section h2::before {
  content: '';
  width: 4px;
  height: 22px;
  background: var(--accent);
  border-radius: 2px;
}

.insight-section p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin: 0 0 14px 0;
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.insight-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 16px;
}

.insight-item .insight-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.insight-item .insight-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.insight-item .insight-text strong {
  color: var(--text-primary);
  display: block;
  font-size: 15px;
  margin-bottom: 4px;
}

/* ============ FAQ ============ */
.faq-section {
  margin-top: 48px;
}

.faq-section h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin: 0 0 24px 0;
  color: var(--text-primary);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-panel);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  text-align: left;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  background: transparent;
  transition: background var(--transition-fast);
  min-height: 44px;
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.03);
}

.faq-question .faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  color: var(--accent);
  transition: transform var(--transition-fast);
}

.faq-question .faq-icon::before,
.faq-question .faq-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.faq-question .faq-icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.faq-question .faq-icon::after {
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

.faq-question.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  padding: 0 20px 18px 20px;
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 200px;
}

/* ============ CTA Form ============ */
.cta-section {
  margin-top: 48px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.cta-left h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin: 0 0 16px 0;
  color: var(--text-primary);
}

.cta-left p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 20px 0;
}

.cta-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cta-highlight-item {
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cta-form input,
.cta-form select,
.cta-form textarea {
  background: var(--bg-input);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 15px;
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
  width: 100%;
}

.cta-form input:focus,
.cta-form select:focus,
.cta-form textarea:focus {
  border-color: var(--accent);
}

.cta-form textarea {
  min-height: 100px;
  resize: vertical;
}

.cta-form select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238895A3' d='M6 8.5L1 3.5h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.submit-btn {
  background: var(--accent);
  color: #0B0F12;
  font-weight: 600;
  padding: 13px 24px;
  border-radius: var(--radius-md);
  font-size: 16px;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}

.submit-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 229, 160, 0.2);
}

.submit-btn:active {
  transform: scale(0.98);
}

.submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.form-note {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 4px;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px 0;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand h4 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 12px 0;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-brand h4 .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 8px 0;
}

.footer-col h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 0 0 12px 0;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: var(--text-muted);
  margin: 4px 0;
}

.footer-links-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.footer-links-row a {
  font-size: 12px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-links-row a:hover {
  color: var(--accent);
}

/* ============ Responsive ============ */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }
  .section-space {
    --section-space: 64px;
  }
}

@media (max-width: 992px) {
  .nav-left,
  .nav-right {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .nav-logo {
    position: static;
    transform: none;
  }
  .nav-inner {
    justify-content: space-between;
  }
  .analysis-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
  }
  .cta-section {
    grid-template-columns: 1fr;
    padding: 32px;
  }
  .insight-grid {
    grid-template-columns: 1fr;
  }
  .page-banner h1 {
    font-size: 36px;
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .page-banner {
    min-height: 280px;
  }
  .page-banner h1 {
    font-size: 30px;
  }
  .article-card {
    padding: 18px;
  }
  .cta-section {
    padding: 24px;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-banner h1 {
    font-size: 26px;
  }
  .page-banner .banner-sub {
    font-size: 15px;
  }
  .insight-section {
    padding: 20px;
  }
  .cta-section {
    padding: 20px;
    border-radius: var(--radius-lg);
  }
  .cta-form input,
  .cta-form select,
  .cta-form textarea {
    font-size: 14px;
    padding: 10px 14px;
  }
  .submit-btn {
    font-size: 15px;
    padding: 12px 20px;
    width: 100%;
  }
  .article-meta {
    flex-wrap: wrap;
    gap: 8px;
  }
  .article-meta .read-more {
    margin-left: 0;
    width: 100%;
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category4 */
:root {
            --bg-primary: #0B0F12;
            --bg-panel: #12181D;
            --bg-elevated: #161E24;
            --bg-input: #0F1418;
            --bg-footer: #070A0D;
            --bg-light: #F6F7F9;
            --text-primary: #F5F7FA;
            --text-secondary: #C7D0D9;
            --text-muted: #8895A3;
            --accent: #00E5A0;
            --accent-hover: #00C88A;
            --accent-dim: rgba(0, 229, 160, 0.1);
            --accent-border: rgba(0, 229, 160, 0.4);
            --gold: #F5B740;
            --gold-dim: rgba(245, 183, 64, 0.12);
            --red: #FF5A67;
            --red-dim: rgba(255, 90, 103, 0.12);
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.16);
            --border-accent: rgba(0, 229, 160, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-pill: 999px;
            --shadow-panel: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Roboto Mono', 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --nav-height: 72px;
            --nav-height-mobile: 56px;
            --section-space: 96px;
            --section-space-tablet: 64px;
            --section-space-mobile: 48px;
            --container-width: 1200px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --transition-bounce: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            color: var(--text-primary);
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 15, 18, 0.92);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(7, 10, 13, 0.96);
            border-bottom-color: var(--border-hover);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }
        .nav-right {
            justify-content: flex-end;
        }
        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            z-index: 20;
            font-weight: 700;
            font-size: 22px;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 12px rgba(0, 229, 160, 0.5);
        }
        .nav-logo .logo-dot.gold {
            background: var(--gold);
            box-shadow: 0 0 12px rgba(245, 183, 64, 0.5);
            margin-left: -4px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width var(--transition-fast);
        }
        .nav-link:hover {
            color: var(--accent);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--accent);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            z-index: 30;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 10, 13, 0.98);
            z-index: 999;
            padding: 32px 24px;
            flex-direction: column;
            gap: 24px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            font-size: 20px;
            font-weight: 600;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            color: var(--text-secondary);
        }
        .mobile-menu a.active {
            color: var(--accent);
        }
        .mobile-menu a:hover {
            color: var(--accent);
        }
        main {
            flex: 1;
            padding-top: var(--nav-height);
        }
        /* Page Hero Banner */
        .page-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-color: var(--bg-primary);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 15, 18, 0.82) 0%, rgba(11, 15, 18, 0.88) 50%, rgba(11, 15, 18, 0.95) 100%);
            z-index: 1;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(0, 229, 160, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 229, 160, 0.06) 1px, transparent 1px);
            background-size: 48px 48px;
            z-index: 2;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 3;
        }
        .page-hero-content {
            max-width: 760px;
            padding: 40px 0;
        }
        .page-hero .badge-top {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-dim);
            border: 1px solid var(--accent-border);
            color: var(--accent);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
        }
        .page-hero .badge-top .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }
        .page-hero h1 {
            font-size: 44px;
            line-height: 1.15;
            font-weight: 700;
            letter-spacing: -1.5px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .page-hero h1 .accent-text {
            color: var(--accent);
        }
        .page-hero .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 24px;
        }
        .page-hero .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-fast);
            text-decoration: none;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: #0B0F12;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #0B0F12;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 229, 160, 0.22);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border-color: var(--border-hover);
        }
        .btn-outline:hover {
            background: var(--accent-dim);
            border-color: var(--accent-border);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 18px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }
        .btn-download {
            background: var(--accent-dim);
            color: var(--accent);
            border: 1px solid var(--accent-border);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition-fast);
        }
        .btn-download:hover {
            background: var(--accent);
            color: #0B0F12;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 229, 160, 0.2);
        }
        /* Featured Report Section */
        .featured-section {
            padding: var(--section-space) 0 0;
        }
        .featured-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 0;
            box-shadow: var(--shadow-panel);
        }
        .featured-cover {
            position: relative;
            min-height: 420px;
            overflow: hidden;
        }
        .featured-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .featured-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 229, 160, 0.15) 0%, transparent 50%, rgba(11, 15, 18, 0.6) 100%);
        }
        .featured-cover .cover-label {
            position: absolute;
            top: 20px;
            left: 20px;
            z-index: 2;
            background: var(--accent);
            color: #0B0F12;
            font-weight: 700;
            font-size: 13px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
        }
        .featured-body {
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-body .report-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--gold);
            background: var(--gold-dim);
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            width: fit-content;
            margin-bottom: 14px;
        }
        .featured-body h2 {
            font-size: 28px;
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .featured-body .report-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .featured-body .report-summary {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .featured-body .report-toc {
            background: var(--bg-input);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            margin-bottom: 24px;
        }
        .featured-body .report-toc h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .featured-body .report-toc h3::before {
            content: '';
            width: 4px;
            height: 18px;
            background: var(--accent);
            border-radius: 2px;
        }
        .featured-body .report-toc ul {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px 16px;
        }
        .featured-body .report-toc li {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .featured-body .report-toc li .toc-num {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent);
            background: var(--accent-dim);
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            flex-shrink: 0;
        }
        .featured-body .featured-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        /* Report Grid */
        .reports-section {
            padding: var(--section-space) 0;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-head .label-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
            display: block;
        }
        .section-head h2 {
            font-size: 32px;
            line-height: 1.25;
            font-weight: 700;
            letter-spacing: -1px;
        }
        .section-head .head-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 460px;
            line-height: 1.7;
        }
        .reports-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .report-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .report-card:hover {
            border-color: var(--accent-border);
            transform: translateY(-6px);
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(0, 229, 160, 0.15);
        }
        .report-card .card-image {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }
        .report-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .report-card:hover .card-image img {
            transform: scale(1.04);
        }
        .report-card .card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11, 15, 18, 0.7) 100%);
        }
        .report-card .report-type {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 3;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            background: rgba(11, 15, 18, 0.75);
            color: var(--accent);
            border: 1px solid var(--accent-border);
            backdrop-filter: blur(4px);
        }
        .report-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .report-card .card-body h3 {
            font-size: 20px;
            line-height: 1.35;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .report-card .card-body .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .report-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }
        .report-card .card-footer .report-date {
            font-size: 13px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }
        .report-card .card-footer .btn-download {
            padding: 8px 16px;
            font-size: 13px;
        }
        /* Pagination */
        .pagination-wrapper {
            display: flex;
            justify-content: center;
            margin-top: 48px;
        }
        .pagination {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .page-btn {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            background: var(--bg-panel);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }
        .page-btn:hover {
            border-color: var(--accent-border);
            color: var(--accent);
        }
        .page-btn.active {
            background: var(--accent);
            color: #0B0F12;
            border-color: var(--accent);
            font-weight: 700;
        }
        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }
        /* Stats Strip */
        .stats-strip {
            padding: 48px 0;
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .stats-strip .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-item .stat-number {
            font-family: var(--font-mono);
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: -1px;
        }
        .stat-item .stat-unit {
            font-size: 14px;
            color: var(--text-muted);
            margin-left: 4px;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
        }
        /* FAQ Section */
        .faq-section {
            padding: var(--section-space) 0;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-fast);
        }
        .faq-item:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 12px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            border: none;
            background: none;
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            color: var(--accent);
            font-size: 18px;
            font-weight: 400;
            transition: all var(--transition-fast);
        }
        .faq-question .faq-icon.open {
            background: var(--accent);
            color: #0B0F12;
            border-color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
        }
        .faq-answer-inner {
            padding: 0 12px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        /* CTA Section */
        .cta-section {
            padding: var(--section-space) 0;
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
        }
        .cta-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            box-shadow: var(--shadow-panel);
        }
        .cta-left {
            padding: 48px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background: linear-gradient(135deg, rgba(0, 229, 160, 0.08) 0%, transparent 60%);
        }
        .cta-left h2 {
            font-size: 32px;
            line-height: 1.25;
            font-weight: 700;
            letter-spacing: -1px;
            margin-bottom: 14px;
        }
        .cta-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cta-highlights {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cta-highlights li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .cta-highlights li::before {
            content: '✓';
            color: var(--accent);
            font-weight: 700;
            font-size: 16px;
        }
        .cta-right {
            padding: 48px;
            background: var(--bg-input);
            border-left: 1px solid var(--border);
        }
        .cta-right h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--text-primary);
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            background: var(--bg-primary);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 13px 16px;
            font-size: 15px;
            color: var(--text-primary);
            transition: border-color var(--transition-fast);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--accent);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .form-submit {
            width: 100%;
            padding: 14px;
            background: var(--accent);
            color: #0B0F12;
            border: none;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .form-submit:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 229, 160, 0.22);
        }
        .form-submit:active {
            transform: scale(0.98);
        }
        .form-privacy {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            text-align: center;
        }
        /* Footer */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-brand h4 .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 8px rgba(0, 229, 160, 0.4);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-muted);
            padding: 6px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .footer-links-row {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .footer-links-row a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links-row a:hover {
            color: var(--accent);
        }
        /* Responsive */
        @media (max-width: 1200px) {
            .container {
                max-width: 960px;
            }
            .reports-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stats-strip .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 992px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-logo {
                position: static;
                transform: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-cover {
                min-height: 280px;
            }
            .cta-card {
                grid-template-columns: 1fr;
            }
            .cta-right {
                border-left: none;
                border-top: 1px solid var(--border);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            :root {
                --section-space: var(--section-space-tablet);
            }
        }
        @media (max-width: 768px) {
            .page-hero h1 {
                font-size: 34px;
            }
            .page-hero .hero-subtitle {
                font-size: 16px;
            }
            .reports-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }
            .featured-body {
                padding: 28px;
            }
            .featured-body .report-toc ul {
                grid-template-columns: 1fr;
            }
            .cta-left,
            .cta-right {
                padding: 32px 24px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stats-strip .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 36px;
            }
        }
        @media (max-width: 520px) {
            .page-hero {
                min-height: 260px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .btn {
                padding: 12px 20px;
                font-size: 14px;
            }
            .featured-cover {
                min-height: 220px;
            }
            .featured-body .featured-actions {
                flex-direction: column;
            }
            .btn-download {
                width: 100%;
                justify-content: center;
            }
            .stats-strip .stats-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }
            .pagination {
                gap: 4px;
            }
            .page-btn {
                width: 38px;
                height: 38px;
                font-size: 13px;
            }
            :root {
                --section-space: var(--section-space-mobile);
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0B0F12;
            --bg-panel: #12181D;
            --bg-elevated: #161E24;
            --bg-input: #0F1418;
            --bg-footer: #070A0D;
            --bg-light: #F6F7F9;
            --text-primary: #F5F7FA;
            --text-secondary: #C7D0D9;
            --text-muted: #8895A3;
            --accent: #00E5A0;
            --accent-hover: #00C88A;
            --accent-dim: rgba(0, 229, 160, 0.1);
            --accent-border: rgba(0, 229, 160, 0.4);
            --gold: #F5B740;
            --gold-dim: rgba(245, 183, 64, 0.12);
            --red: #FF5A67;
            --red-dim: rgba(255, 90, 103, 0.12);
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.16);
            --border-accent: rgba(0, 229, 160, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-pill: 999px;
            --shadow-panel: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Roboto Mono', 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --nav-height: 72px;
            --nav-height-mobile: 56px;
            --section-space: 96px;
            --section-space-tablet: 64px;
            --section-space-mobile: 48px;
            --container-width: 1200px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --transition-bounce: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            color: var(--text-primary);
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 15, 18, 0.92);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(7, 10, 13, 0.96);
            border-bottom-color: var(--border-hover);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }

        .nav-right {
            justify-content: flex-end;
        }

        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            z-index: 20;
            font-weight: 700;
            font-size: 22px;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 12px rgba(0, 229, 160, 0.5);
        }

        .nav-logo .logo-dot.gold {
            background: var(--gold);
            box-shadow: 0 0 12px rgba(245, 183, 64, 0.5);
            margin-left: -4px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width var(--transition-fast);
        }

        .nav-link:hover {
            color: var(--accent);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--accent);
        }

        .nav-link.active::after {
            width: 100%;
        }

        .nav-link.active::before {
            content: '';
            position: absolute;
            top: 50%;
            left: -12px;
            transform: translateY(-50%);
            width: 5px;
            height: 5px;
            background: var(--accent);
            border-radius: 50%;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 30;
            background: transparent;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height-mobile);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 10, 13, 0.98);
            z-index: 999;
            padding: 32px 24px;
            flex-direction: column;
            gap: 20px;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu .nav-link {
            font-size: 20px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            color: var(--text-primary);
        }

        .mobile-menu .nav-link.active {
            color: var(--accent);
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            padding: calc(var(--nav-height) + 40px) 0 56px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 300px;
            display: flex;
            align-items: flex-end;
            border-bottom: 1px solid var(--border);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 15, 18, 0.88) 0%, rgba(11, 15, 18, 0.65) 50%, rgba(11, 15, 18, 0.5) 100%);
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 48px 48px;
            z-index: 1;
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--accent);
        }

        .breadcrumb .sep {
            color: var(--text-muted);
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.15;
            letter-spacing: -1.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
            max-width: 720px;
        }

        .page-hero .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }

        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-dim);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            margin-bottom: 18px;
        }

        .live-badge .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse 1.8s ease-in-out infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.6);
            }
        }

        /* Main Content */
        .main-content {
            flex: 1;
            padding: 48px 0 var(--section-space);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 100px 1fr auto;
            gap: 24px;
            align-items: flex-start;
            padding: 32px 0;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-fast);
            position: relative;
        }

        .news-item:first-child {
            border-top: 1px solid var(--border);
        }

        .news-item:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .news-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 12px 10px;
            min-width: 100px;
            text-align: center;
            transition: border-color var(--transition-fast);
        }

        .news-item:hover .news-date {
            border-color: var(--border-accent);
        }

        .news-date .day {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            letter-spacing: -1px;
        }

        .news-date .month {
            font-size: 13px;
            font-weight: 600;
            color: var(--gold);
            margin-top: 4px;
            letter-spacing: 1px;
        }

        .news-date .year {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-dim);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-pill);
            padding: 2px 12px;
            margin-bottom: 10px;
        }

        .news-content h2 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }

        .news-content h2 a {
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }

        .news-content h2 a:hover {
            color: var(--accent);
        }

        .news-summary {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-arrow {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition-fast);
            padding: 8px 4px;
            align-self: center;
        }

        .news-arrow .arrow-icon {
            display: inline-block;
            transition: transform var(--transition-fast);
            font-size: 18px;
        }

        .news-arrow:hover {
            color: var(--accent);
        }

        .news-arrow:hover .arrow-icon {
            transform: translateX(4px);
        }

        /* Filter Bar */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 16px 20px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            margin-bottom: 24px;
        }

        .filter-bar .filter-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .filter-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-tag {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-tag:hover {
            color: var(--accent);
            border-color: var(--border-accent);
            background: var(--accent-dim);
        }

        .filter-tag.active {
            color: var(--accent);
            background: var(--accent-dim);
            border-color: var(--border-accent);
            font-weight: 600;
        }

        /* CTA Section */
        .cta-section {
            margin-top: 48px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, var(--accent-dim) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-left {
            position: relative;
            z-index: 1;
        }

        .cta-left h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .cta-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .cta-points {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .cta-point {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 4px 14px;
        }

        .cta-point .dot {
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
        }

        .cta-right {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            letter-spacing: -0.2px;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: #0B0F12;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #0B0F12;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 160, 0.25);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-hover);
        }

        .btn-outline:hover {
            background: var(--accent-dim);
            border-color: var(--border-accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }

        .footer-brand h4 .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 8px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.2px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-muted);
            padding: 6px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-links-row {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }

        .footer-links-row a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-links-row a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1200px) {
            .container {
                max-width: 960px;
            }
            .nav-left,
            .nav-right {
                gap: 20px;
            }
            .nav-link {
                font-size: 14px;
            }
        }

        @media (max-width: 992px) {
            .hamburger {
                display: flex;
            }
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-logo {
                position: static;
                transform: none;
                font-size: 20px;
                margin-left: auto;
                margin-right: auto;
            }
            .nav-inner {
                justify-content: flex-start;
                gap: 16px;
            }
            .site-header {
                height: var(--nav-height-mobile);
            }
            .mobile-menu {
                top: var(--nav-height-mobile);
            }
            .page-hero {
                padding-top: calc(var(--nav-height-mobile) + 32px);
                min-height: 240px;
            }
            .page-hero h1 {
                font-size: 32px;
                letter-spacing: -1px;
            }
            .news-item {
                grid-template-columns: 80px 1fr;
                gap: 16px;
            }
            .news-arrow {
                grid-column: 2;
                align-self: flex-start;
                padding-left: 0;
            }
            .news-date {
                min-width: 80px;
                padding: 10px 8px;
            }
            .news-date .day {
                font-size: 26px;
            }
            .cta-section {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 32px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-subtitle {
                font-size: 15px;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 24px 0;
            }
            .news-date {
                flex-direction: row;
                gap: 8px;
                padding: 8px 16px;
                min-width: auto;
                width: fit-content;
                align-items: baseline;
            }
            .news-date .day {
                font-size: 22px;
            }
            .news-date .month {
                font-size: 12px;
                margin-top: 0;
            }
            .news-date .year {
                font-size: 11px;
                margin-top: 0;
            }
            .news-arrow {
                grid-column: 1;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .cta-section {
                padding: 24px 20px;
            }
            .cta-left h2 {
                font-size: 22px;
            }
            .btn-group {
                flex-direction: column;
                width: 100%;
            }
            .btn-group .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-links-row {
                margin-left: 0;
            }
        }

        @media (max-width: 560px) {
            .page-hero {
                min-height: 200px;
                padding-bottom: 32px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .news-content h2 {
                font-size: 18px;
            }
            .news-summary {
                font-size: 14px;
                -webkit-line-clamp: 3;
            }
            .news-tag {
                font-size: 11px;
                padding: 2px 10px;
            }
            .cta-left h2 {
                font-size: 20px;
            }
            .btn {
                font-size: 14px;
                padding: 12px 20px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category6 */
:root {
  --bg-primary: #0B0F12;
  --bg-panel: #12181D;
  --bg-elevated: #161E24;
  --bg-input: #0F1418;
  --bg-footer: #070A0D;
  --bg-light: #F6F7F9;
  --text-primary: #F5F7FA;
  --text-secondary: #C7D0D9;
  --text-muted: #8895A3;
  --accent: #00E5A0;
  --accent-hover: #00C88A;
  --accent-dim: rgba(0, 229, 160, 0.1);
  --accent-border: rgba(0, 229, 160, 0.4);
  --gold: #F5B740;
  --gold-dim: rgba(245, 183, 64, 0.12);
  --red: #FF5A67;
  --red-dim: rgba(255, 90, 103, 0.12);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --border-accent: rgba(0, 229, 160, 0.35);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 999px;
  --shadow-panel: 0 18px 40px rgba(0, 0, 0, 0.35);
  --shadow-light: 0 12px 32px rgba(0, 0, 0, 0.08);
  --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Roboto Mono', 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
  --nav-height: 72px;
  --nav-height-mobile: 56px;
  --section-space: 96px;
  --section-space-tablet: 64px;
  --section-space-mobile: 48px;
  --container-width: 1200px;
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s ease;
  --transition-bounce: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--accent);
}
button,
input,
textarea,
select {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--text-primary);
  outline: none;
}
button {
  cursor: pointer;
  border: none;
  background: none;
  transition: all var(--transition-fast);
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
/* Header / Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(11, 15, 18, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-smooth), border-color var(--transition-smooth);
}
.site-header.scrolled {
  background: rgba(7, 10, 13, 0.96);
  border-bottom-color: var(--border-hover);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  position: relative;
}
.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}
.nav-right {
  justify-content: flex-end;
}
.nav-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo .logo-dot {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 12px rgba(0, 229, 160, 0.5);
}
.nav-logo .logo-dot.gold {
  background: var(--gold);
  box-shadow: 0 0 12px rgba(245, 183, 64, 0.5);
  margin-left: -4px;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-fast);
}
.nav-link:hover {
  color: var(--accent);
}
.nav-link:hover::after {
  width: 100%;
}
.nav-link.active {
  color: var(--accent);
}
.nav-link.active::after {
  width: 100%;
}
.nav-link.active::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  z-index: 40;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-smooth);
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height-mobile);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: 999;
  padding: 32px 24px;
  flex-direction: column;
  gap: 20px;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  font-size: 20px;
  font-weight: 500;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.mobile-menu a.active {
  color: var(--accent);
}
/* Main */
main {
  flex: 1;
  padding-top: var(--nav-height);
}
/* Resource Hero */
.resource-hero {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  padding: 64px 0 56px;
}
.resource-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 15, 18, 0.92) 0%, rgba(11, 15, 18, 0.78) 50%, rgba(11, 15, 18, 0.88) 100%);
}
.resource-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0, 229, 160, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 229, 160, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.resource-hero .container {
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.3px;
  margin-bottom: 20px;
}
.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 229, 160, 0.5); }
  50% { box-shadow: 0 0 0 6px rgba(0, 229, 160, 0); }
}
.resource-hero h1 {
  font-size: 44px;
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -1.5px;
  margin: 0 0 18px;
  max-width: 680px;
}
.resource-hero .hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 0 24px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 8px;
}
.hero-stat {
  display: flex;
  flex-direction: column;
}
.hero-stat .stat-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}
.hero-stat .stat-label {
  font-size: 13px;
  color: var(--text-muted);
}
/* Resource Section */
.resource-section {
  padding: var(--section-space) 0;
}
.resource-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  margin-top: 40px;
}
/* Sidebar */
.resource-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
  align-self: start;
}
.filter-group {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
}
.filter-group h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.filter-group h3::before {
  content: '';
  width: 3px;
  height: 14px;
  background: var(--accent);
  border-radius: 2px;
}
.filter-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 8px 12px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
  transition: all var(--transition-fast);
}
.filter-btn:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}
.filter-btn.active {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--accent-border);
}
.filter-btn .count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-elevated);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}
.filter-btn.active .count {
  background: var(--accent);
  color: #0B0F12;
}
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-filter {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  background: transparent;
  transition: all var(--transition-fast);
}
.tag-filter:hover {
  border-color: var(--accent-border);
  color: var(--accent);
}
.tag-filter.active {
  background: var(--accent-dim);
  border-color: var(--accent-border);
  color: var(--accent);
}
/* Resource Cards */
.resource-main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.resource-main-header h2 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin: 0;
}
.resource-main-header .result-count {
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.resource-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition-smooth);
}
.resource-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-panel);
  transform: translateY(-3px);
}
.resource-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.resource-type-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.resource-type-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.8;
}
.resource-version {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--gold);
  background: var(--gold-dim);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(245, 183, 64, 0.25);
  white-space: nowrap;
}
.resource-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}
.resource-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0;
  flex: 1;
}
.resource-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.resource-tags span {
  font-size: 12px;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.resource-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.resource-meta {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
  transition: all var(--transition-fast);
}
.btn-download:hover {
  background: var(--accent);
  color: #0B0F12;
  transform: translateY(-1px);
}
.btn-download svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}
/* API Highlight */
.api-highlight {
  padding: var(--section-space) 0;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.api-highlight h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  margin: 0 0 16px;
}
.api-highlight .api-sub {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 700px;
  margin: 0 0 40px;
  line-height: 1.8;
}
.api-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.api-feature {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition-smooth);
}
.api-feature:hover {
  border-color: var(--accent-border);
  transform: translateY(-2px);
}
.api-feature-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.api-feature-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.8;
}
.api-feature h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 8px;
}
.api-feature p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}
/* Update Note */
.update-note {
  padding: var(--section-space) 0;
}
.update-note h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.8px;
  margin: 0 0 12px;
}
.update-note .note-sub {
  color: var(--text-secondary);
  font-size: 15px;
  margin: 0 0 32px;
}
.update-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.update-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  transition: all var(--transition-fast);
}
.update-item:hover {
  border-color: var(--border-accent);
}
.update-date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  flex-shrink: 0;
}
.update-content {
  flex: 1;
}
.update-content h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 4px;
}
.update-content p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.7;
}
/* FAQ */
.faq-section {
  padding: var(--section-space) 0;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.faq-section h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  margin: 0 0 8px;
}
.faq-sub {
  color: var(--text-secondary);
  font-size: 15px;
  margin: 0 0 32px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 800px;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  overflow: hidden;
  transition: all var(--transition-fast);
}
.faq-item:hover {
  border-color: var(--border-hover);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 16px 20px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  gap: 12px;
  transition: all var(--transition-fast);
}
.faq-question:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--accent);
}
.faq-question .faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
}
.faq-question .faq-icon::before,
.faq-question .faq-icon::after {
  content: '';
  position: absolute;
  background: var(--accent);
  border-radius: 2px;
  transition: all var(--transition-fast);
}
.faq-question .faq-icon::before {
  width: 14px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.faq-question .faq-icon::after {
  width: 2px;
  height: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.faq-item.open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 20px;
}
.faq-item.open .faq-answer {
  max-height: 200px;
  padding: 0 20px 16px;
}
.faq-answer p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}
/* CTA */
.cta-section {
  padding: var(--section-space) 0;
}
.cta-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta-left h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.8px;
  margin: 0 0 14px;
}
.cta-left p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin: 0 0 20px;
}
.cta-highlights {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cta-highlight {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}
.cta-highlight svg {
  width: 16px;
  height: 16px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 2.2;
  flex-shrink: 0;
}
.cta-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.cta-form input,
.cta-form select,
.cta-form textarea {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}
.cta-form input:focus,
.cta-form select:focus,
.cta-form textarea:focus {
  border-color: var(--accent);
  outline: none;
}
.cta-form input::placeholder,
.cta-form textarea::placeholder {
  color: var(--text-muted);
}
.cta-form textarea {
  min-height: 80px;
  resize: vertical;
}
.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #0B0F12;
  font-size: 15px;
  font-weight: 700;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  border: none;
}
.btn-submit:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 229, 160, 0.25);
}
.btn-submit:active {
  transform: scale(0.98);
}
/* Footer */
.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid var(--border);
  padding: 56px 0 24px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand h4 {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-brand h4 .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 8px;
}
.footer-col h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 14px;
  letter-spacing: 0.5px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  padding: 6px 0;
  transition: all var(--transition-fast);
}
.footer-col a:hover {
  color: var(--accent);
  transform: translateX(4px);
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom p {
  margin: 0;
}
.footer-links-row {
  display: flex;
  gap: 16px;
}
.footer-links-row a {
  color: var(--text-muted);
  font-size: 13px;
}
.footer-links-row a:hover {
  color: var(--accent);
}
/* Responsive */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }
  .nav-left,
  .nav-right {
    gap: 18px;
  }
  .resource-layout {
    grid-template-columns: 220px 1fr;
    gap: 24px;
  }
  .resource-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}
@media (max-width: 992px) {
  :root {
    --nav-height: var(--nav-height-mobile);
  }
  .nav-left,
  .nav-right {
    display: none;
  }
  .nav-logo {
    position: static;
    transform: none;
    left: auto;
    font-size: 20px;
  }
  .nav-inner {
    justify-content: space-between;
  }
  .hamburger {
    display: flex;
  }
  .mobile-menu {
    display: flex;
  }
  .mobile-menu:not(.open) {
    display: none;
  }
  .resource-layout {
    grid-template-columns: 1fr;
  }
  .resource-sidebar {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }
  .filter-group {
    flex: 1;
    min-width: 200px;
  }
  .resource-grid {
    grid-template-columns: 1fr 1fr;
  }
  .api-feature-grid {
    grid-template-columns: 1fr 1fr;
  }
  .cta-card {
    grid-template-columns: 1fr;
    padding: 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}
@media (max-width: 768px) {
  :root {
    --section-space: var(--section-space-tablet);
  }
  main {
    padding-top: var(--nav-height-mobile);
  }
  .resource-hero {
    min-height: 300px;
    padding: 40px 0;
  }
  .resource-hero h1 {
    font-size: 32px;
    letter-spacing: -1px;
  }
  .resource-grid {
    grid-template-columns: 1fr;
  }
  .api-feature-grid {
    grid-template-columns: 1fr;
  }
  .resource-sidebar {
    flex-direction: column;
  }
  .cta-card {
    padding: 24px;
    gap: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}
@media (max-width: 560px) {
  .container {
    padding: 0 16px;
  }
  .resource-hero h1 {
    font-size: 26px;
  }
  .resource-hero .hero-sub {
    font-size: 15px;
  }
  .hero-stats {
    gap: 16px;
  }
  .resource-card {
    padding: 16px;
  }
  .resource-card-top {
    flex-direction: column;
    align-items: flex-start;
  }
  .resource-card-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .btn-download {
    width: 100%;
    justify-content: center;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-links-row {
    flex-wrap: wrap;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
}