/* roulang page: index */
:root {
            --bg-deep: #0A0F1E;
            --bg-panel: #0F1628;
            --bg-elevated: #151F35;
            --text-primary: #EAF0FF;
            --text-secondary: #8B9BB4;
            --text-muted: #5B6B82;
            --accent: #00E6C3;
            --accent-blue: #3E7BFF;
            --live-red: #FF4D6D;
            --border-hair: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 24px;
            --radius-input: 12px;
            --radius-badge: 6px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(0, 230, 195, 0.35);
            --font-cn: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Barlow Condensed", "DIN Alternate", "Roboto Mono", monospace;
            --space-section: 88px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            background-image: radial-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px);
            background-size: 24px 24px;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--space-section) 0;
            position: relative;
        }
        .row {
            max-width: 1200px;
            margin: 0 auto;
        }
        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            z-index: 1000;
            background: rgba(10, 15, 30, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-hair);
            display: flex;
            align-items: center;
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
            gap: 16px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 0 20px rgba(0, 230, 195, 0.3);
        }
        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .brand-text span {
            color: var(--accent);
        }
        .header-search {
            position: relative;
            flex: 1;
            max-width: 480px;
            margin: 0 auto;
        }
        .header-search .search-icon {
            position: absolute;
            left: 18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: 14px;
        }
        .header-search input {
            width: 100%;
            height: 46px;
            border-radius: 23px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border-hair);
            padding: 0 52px 0 46px;
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .header-search input::placeholder {
            color: #8892B0;
        }
        .header-search input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(0, 230, 195, 0.15), 0 0 20px rgba(0, 230, 195, 0.1);
        }
        .header-search .kbd {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 11px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-hair);
            border-radius: 4px;
            padding: 2px 6px;
            font-family: var(--font-num);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            height: 40px;
            padding: 0 14px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.25s;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link.active {
            color: var(--accent);
            background: rgba(0, 230, 195, 0.1);
        }
        .nav-link .fa-solid {
            font-size: 12px;
            margin-right: 6px;
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.07);
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-hair);
        }
        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 720px;
            display: flex;
            align-items: flex-end;
            padding: 140px 0 80px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            z-index: 0;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, #0A0F1E 0%, rgba(10, 15, 30, 0.55) 50%, rgba(10, 15, 30, 0.3) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .hero-glass {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-hair);
            border-radius: 24px;
            padding: 40px;
            box-shadow: 0 16px 64px rgba(0, 0, 0, 0.45);
            max-width: 820px;
        }
        .hero-glass::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: 24px;
            background: rgba(10, 15, 30, 0.35);
            z-index: -1;
        }
        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 77, 109, 0.15);
            border: 1px solid rgba(255, 77, 109, 0.4);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 24px;
        }
        .live-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--live-red);
            box-shadow: 0 0 10px var(--live-red);
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.85);
            }
        }
        .hero-glass h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }
        .countdown {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 32px;
        }
        .cd-item {
            background: rgba(10, 15, 30, 0.7);
            border: 1px solid var(--border-hair);
            border-radius: 16px;
            padding: 16px 20px;
            text-align: center;
            min-width: 80px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .cd-num {
            font-family: var(--font-num);
            font-size: 56px;
            font-weight: 800;
            line-height: 1;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
        }
        .cd-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 6px;
            letter-spacing: 2px;
        }
        .cd-sep {
            font-size: 36px;
            font-weight: 300;
            color: var(--text-muted);
            font-family: var(--font-num);
        }
        .hero-points {
            margin-bottom: 32px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px 20px;
        }
        .hero-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .hero-points li .fa-solid {
            color: var(--accent);
            font-size: 14px;
            flex-shrink: 0;
        }
        .hero-form {
            display: flex;
            gap: 12px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .hero-form input {
            flex: 1;
            min-width: 220px;
            height: 48px;
            border-radius: var(--radius-input);
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border-hair);
            padding: 0 18px;
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .hero-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(0, 230, 195, 0.12);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 32px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: var(--shadow-glow);
            border: none;
            white-space: nowrap;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(0, 230, 195, 0.5);
            background: linear-gradient(135deg, #00f0cc, #4f8bff);
        }
        .btn-primary:active {
            transform: translateY(2px) scale(0.98);
        }
        .hero-rewatch {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.25s;
        }
        .hero-rewatch:hover {
            color: var(--accent);
        }
        /* ===== Stats ===== */
        .stats-section {
            position: relative;
            margin-top: -40px;
            z-index: 5;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: rgba(15, 22, 40, 0.9);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-card);
            transition: transform 0.25s, border-color 0.25s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 230, 195, 0.3);
        }
        .stat-num {
            font-family: var(--font-num);
            font-size: 44px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
        }
        /* ===== Section titles ===== */
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 48px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            position: relative;
            padding-left: 16px;
            line-height: 1.3;
            margin: 0;
        }
        .section-head h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            border-radius: 2px;
            background: linear-gradient(180deg, var(--accent), var(--accent-blue));
        }
        .section-link {
            font-size: 14px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.25s;
        }
        .section-link:hover {
            color: var(--accent);
        }
        /* ===== News list ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-card {
            display: flex;
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
        }
        .news-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 230, 195, 0.35);
            box-shadow: var(--shadow-card);
        }
        .news-thumb {
            width: 260px;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-body {
            flex: 1;
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .news-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.25s;
        }
        .news-card:hover .news-body h3 {
            color: var(--accent);
        }
        .news-body p {
            font-size: 14px;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .news-meta .tag {
            background: rgba(0, 230, 195, 0.12);
            color: var(--accent);
            border-radius: var(--radius-badge);
            padding: 2px 10px;
            font-size: 12px;
            font-weight: 500;
        }
        .news-meta .link-arrow {
            margin-left: auto;
            color: var(--text-secondary);
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-card:hover .link-arrow {
            color: var(--accent);
        }
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-panel);
            border: 1px dashed var(--border-hair);
            border-radius: var(--radius-card);
            color: var(--text-secondary);
            font-size: 15px;
        }
        .empty-state .fa-solid {
            font-size: 40px;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: block;
        }
        /* ===== Featured grid ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
            position: relative;
        }
        .featured-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 230, 195, 0.35);
            box-shadow: var(--shadow-card);
        }
        .featured-card.featured-lg {
            grid-column: span 2;
        }
        .featured-cover {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .featured-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .featured-card:hover .featured-cover img {
            transform: scale(1.05);
        }
        .featured-cover .featured-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(0, 230, 195, 0.85);
            color: #0A0F1E;
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-badge);
            padding: 4px 12px;
        }
        .featured-body {
            padding: 20px 24px 24px;
        }
        .featured-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .featured-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .featured-body .read-more {
            font-size: 14px;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
        }
        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-hair);
            border-bottom: 1px solid var(--border-hair);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.25s;
        }
        .faq-item.active {
            border-color: rgba(0, 230, 195, 0.4);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            gap: 16px;
            user-select: none;
        }
        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(0, 230, 195, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform 0.3s;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
        }
        .faq-item.active .faq-a {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            z-index: 0;
        }
        .cta-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 15, 30, 0.82);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .cta-inner p {
            color: var(--text-secondary);
            margin-bottom: 32px;
            font-size: 15px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-form input {
            flex: 1;
            max-width: 360px;
            height: 48px;
            border-radius: var(--radius-input);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-hair);
            padding: 0 18px;
            font-size: 14px;
            color: var(--text-primary);
        }
        .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(0, 230, 195, 0.12);
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-hair);
            padding-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand {
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 20px;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.2s, padding-left 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-hair);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        /* ===== Mobile menu ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--bg-deep);
            border-bottom: 1px solid var(--border-hair);
            padding: 16px 24px;
            z-index: 999;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .nav-link {
            padding: 12px 16px;
            height: auto;
            font-size: 15px;
        }
        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .header-search {
                max-width: 320px;
            }
            .hero-glass h1 {
                font-size: 36px;
            }
            .cd-num {
                font-size: 42px;
            }
            .featured-grid {
                grid-template-columns: 1fr 1fr;
            }
            .featured-card.featured-lg {
                grid-column: span 2;
            }
        }
        @media screen and (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
            .container {
                padding: 0 16px;
            }
            .brand-text {
                font-size: 17px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .header-search {
                max-width: 200px;
            }
            .header-search .kbd {
                display: none;
            }
            .hero {
                min-height: auto;
                padding: 120px 0 60px;
            }
            .hero-glass {
                padding: 28px;
            }
            .hero-glass h1 {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 14px;
            }
            .countdown {
                gap: 8px;
            }
            .cd-item {
                min-width: 64px;
                padding: 12px 14px;
            }
            .cd-num {
                font-size: 32px;
            }
            .cd-sep {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-num {
                font-size: 32px;
            }
            .news-card {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                aspect-ratio: 16/9;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .featured-card.featured-lg {
                grid-column: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .hero-points {
                grid-template-columns: 1fr;
            }
            .hero-form input {
                min-width: 100%;
            }
            .btn-primary {
                width: 100%;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                max-width: 100%;
                width: 100%;
            }
            .cta-form .btn-primary {
                width: 100%;
            }
        }
        @media screen and (max-width: 520px) {
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .brand-text {
                font-size: 15px;
                letter-spacing: 0;
            }
            .header-search input {
                padding-left: 38px;
                font-size: 13px;
                height: 40px;
            }
            .header-search .search-icon {
                left: 14px;
                font-size: 12px;
            }
            .hero-glass h1 {
                font-size: 23px;
            }
            .cd-item {
                min-width: 56px;
                padding: 10px 8px;
            }
            .cd-num {
                font-size: 26px;
            }
            .cd-label {
                font-size: 11px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #0A0F1E;
            --bg-panel: #0F1628;
            --bg-elevated: #151F35;
            --text-primary: #EAF0FF;
            --text-secondary: #8B9BB4;
            --text-muted: #5B6B82;
            --accent: #00E6C3;
            --accent-blue: #3E7BFF;
            --live-red: #FF4D6D;
            --border-hair: rgba(255, 255, 255, 0.12);
            --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
            --card-radius: 16px;
            --btn-radius: 24px;
            --input-radius: 12px;
            --badge-radius: 6px;
            --transition: 0.25s ease;
            --font-main: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-number: "Barlow Condensed", "DIN Alternate", "Roboto Mono", monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            background-image: linear-gradient(rgba(0, 230, 195, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 230, 195, 0.02) 1px, transparent 1px);
            background-size: 40px 40px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: #fff;
        }

        button, input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            background: rgba(10, 15, 30, 0.78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-hair);
            z-index: 1000;
            transition: background 0.3s ease;
        }

        .header-inner {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 20px rgba(0, 230, 195, 0.25);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .brand-text span {
            color: var(--accent);
            font-weight: 800;
        }

        .header-search {
            flex: 1;
            max-width: 480px;
            height: 46px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-hair);
            border-radius: 24px;
            display: flex;
            align-items: center;
            padding: 0 16px;
            gap: 10px;
            transition: border-color var(--transition), box-shadow var(--transition);
            margin: 0 auto;
        }

        .header-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 24px rgba(0, 230, 195, 0.15);
        }

        .header-search .search-icon {
            color: var(--text-muted);
            font-size: 14px;
        }

        .header-search input {
            flex: 1;
            color: var(--text-primary);
            font-size: 14px;
            background: transparent;
            height: 100%;
        }

        .header-search input::placeholder {
            color: #8892B0;
        }

        .header-search .kbd {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-hair);
            border-radius: 4px;
            font-size: 11px;
            padding: 2px 6px;
            color: var(--text-muted);
            white-space: nowrap;
            font-family: var(--font-number);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
            flex-shrink: 0;
        }

        .main-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .main-nav .nav-link i {
            font-size: 13px;
        }

        .main-nav .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav .nav-link.active {
            color: var(--accent);
            background: rgba(0, 230, 195, 0.08);
            box-shadow: inset 0 0 0 1px rgba(0, 230, 195, 0.15);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-hair);
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: background var(--transition), transform 0.2s;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .nav-toggle:active {
            transform: scale(0.95);
        }

        .article-page {
            padding-top: 72px;
            background: var(--bg-deep);
        }

        .article-hero {
            background: linear-gradient(180deg, rgba(10, 15, 30, 0.4) 0%, var(--bg-deep) 100%), 
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 50px 0 40px;
            border-bottom: 1px solid var(--border-hair);
        }

        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

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

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

        .article-hero .breadcrumb i {
            font-size: 10px;
            color: var(--text-muted);
        }

        .article-hero .breadcrumb .current {
            color: var(--accent);
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-hero .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(0, 230, 195, 0.1);
            border: 1px solid rgba(0, 230, 195, 0.2);
            padding: 5px 14px;
            border-radius: var(--badge-radius);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .article-hero .category-badge i {
            font-size: 10px;
        }

        .article-hero h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            max-width: 760px;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 7px;
        }

        .article-meta .meta-item i {
            font-size: 13px;
            color: var(--text-muted);
        }

        .article-layout {
            position: relative;
            padding: 60px 0 80px;
        }

        .article-with-toc {
            display: flex;
            gap: 32px;
            max-width: 1120px;
            margin: 0 auto;
            align-items: flex-start;
        }

        .article-main {
            flex: 1;
            max-width: 760px;
            margin: 0 auto;
            min-width: 0;
        }

        .article-body {
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--card-radius);
            padding: 48px;
            box-shadow: var(--card-shadow);
            position: relative;
            z-index: 1;
        }

        .article-body .content {
            font-size: 16px;
            line-height: 1.75;
            color: #B8C4DC;
        }

        .article-body .content p {
            margin-bottom: 1.5em;
            text-align: justify;
        }

        .article-body .content h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 1.5em 0 0.8em;
            padding-bottom: 0.4em;
            border-bottom: 1px solid var(--border-hair);
        }

        .article-body .content h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 1.4em 0 0.6em;
        }

        .article-body .content h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 1.2em 0 0.5em;
        }

        .article-body .content blockquote {
            border-left: 3px solid var(--accent);
            background: rgba(0, 230, 195, 0.06);
            padding: 14px 20px;
            margin: 1.5em 0;
            border-radius: 0 8px 8px 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body .content ul, .article-body .content ol {
            margin: 0 0 1.5em 1.2em;
            color: #B8C4DC;
        }

        .article-body .content li {
            margin-bottom: 0.5em;
        }

        .article-body .content img {
            border-radius: 12px;
            margin: 1.5em 0;
            border: 1px solid var(--border-hair);
        }

        .article-body .content hr {
            border: none;
            border-top: 1px solid var(--border-hair);
            margin: 2em 0;
        }

        .article-body .content a {
            color: var(--accent);
            border-bottom: 1px solid rgba(0, 230, 195, 0.3);
        }

        .article-body .content a:hover {
            border-bottom-color: var(--accent);
        }

        .article-body .content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 14px;
        }

        .article-body .content table th,
        .article-body .content table td {
            border: 1px solid var(--border-hair);
            padding: 10px 14px;
            text-align: left;
        }

        .article-body .content table th {
            background: var(--bg-elevated);
            color: var(--text-primary);
            font-weight: 600;
        }

        .toc-sidebar {
            position: sticky;
            top: 100px;
            width: 280px;
            flex-shrink: 0;
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--card-radius);
            padding: 20px;
            display: none;
            max-height: calc(100vh - 120px);
            overflow-y: auto;
        }

        .toc-sidebar .toc-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-hair);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .toc-sidebar .toc-title i {
            color: var(--accent);
        }

        .toc-sidebar a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 6px 0;
            line-height: 1.5;
            transition: color var(--transition), padding-left var(--transition);
        }

        .toc-sidebar a:hover {
            color: var(--accent);
            padding-left: 6px;
        }

        .article-empty {
            text-align: center;
            padding: 80px 40px;
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--card-radius);
        }

        .article-empty .empty-icon {
            font-size: 56px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .article-empty h2 {
            font-size: 24px;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .article-empty p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .article-empty .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--btn-radius);
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }

        .article-empty .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(0, 230, 195, 0.35);
        }

        .article-footer-nav {
            margin-top: 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .article-footer-nav .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--btn-radius);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-hair);
            color: var(--text-secondary);
            font-size: 14px;
            cursor: pointer;
            transition: all var(--transition);
        }

        .article-footer-nav .btn-back:hover {
            color: var(--text-primary);
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.1);
        }

        .related-section {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 24px 80px;
        }

        .related-section .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .related-section .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .related-section .section-head h2 i {
            color: var(--accent);
            font-size: 22px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--card-radius);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 230, 195, 0.3);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
        }

        .related-card .card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .related-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .related-card:hover .card-cover img {
            transform: scale(1.05);
        }

        .related-card .card-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .related-card .card-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
        }

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

        .related-card .card-link {
            color: var(--accent);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
        }

        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-hair);
            padding: 60px 0 0;
            margin-top: auto;
        }

        .site-footer .container {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand-col .footer-brand {
            margin-bottom: 16px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 15px;
        }

        .footer-brand .brand-text {
            font-size: 18px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            transition: all var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-hair);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        @media screen and (min-width: 1024px) and (max-width: 1280px) {
            .header-inner {
                gap: 16px;
                padding: 0 16px;
            }
            .header-search {
                max-width: 360px;
            }
            .main-nav .nav-link {
                padding: 8px 10px;
                font-size: 13px;
            }
            .article-with-toc {
                padding: 0 24px;
            }
        }

        @media screen and (max-width: 1024px) {
            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(10, 15, 30, 0.96);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
                border-bottom: 1px solid var(--border-hair);
                padding: 12px 24px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                flex-shrink: 0;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav .nav-link {
                padding: 14px 16px;
                border-radius: 10px;
                font-size: 15px;
            }

            .nav-toggle {
                display: flex;
            }

            .header-search {
                max-width: none;
                margin: 0 12px;
            }

            .header-inner {
                gap: 12px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .toc-sidebar {
                display: none;
            }
        }

        @media screen and (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
                gap: 8px;
            }

            .brand-text {
                font-size: 17px;
            }

            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .header-search .kbd {
                display: none;
            }

            .article-hero {
                padding: 40px 0 32px;
            }

            .article-hero h1 {
                font-size: 28px;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .article-body {
                padding: 32px 20px;
                border-radius: 12px;
            }

            .article-body .content {
                font-size: 15px;
            }

            .article-body .content h2 {
                font-size: 24px;
            }

            .article-body .content h3 {
                font-size: 20px;
            }

            .article-layout {
                padding: 40px 0 56px;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .related-section {
                padding: 0 16px 56px;
            }

            .related-section .section-head h2 {
                font-size: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media screen and (max-width: 520px) {
            .header-inner {
                padding: 0 12px;
            }

            .header-search {
                padding: 0 12px;
                height: 40px;
            }

            .header-search input {
                font-size: 13px;
            }

            .brand-text {
                font-size: 16px;
            }

            .brand-text span {
                display: inline;
            }

            .article-hero .breadcrumb {
                font-size: 13px;
            }

            .article-hero h1 {
                font-size: 24px;
            }

            .article-meta {
                gap: 10px;
                font-size: 12px;
            }

            .article-meta .meta-item:nth-child(3) {
                display: none;
            }

            .article-body {
                padding: 24px 16px;
            }

            .article-body .content {
                font-size: 14px;
                line-height: 1.7;
            }

            .article-footer-nav {
                flex-direction: column;
                align-items: stretch;
            }

            .article-footer-nav .btn-back {
                justify-content: center;
            }

            .related-section .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .footer-col ul li {
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #0A0F1E;
            --bg-panel: #0F1628;
            --bg-elevated: #151F35;
            --text-primary: #EAF0FF;
            --text-secondary: #8B9BB4;
            --text-muted: #5B6B82;
            --accent: #00E6C3;
            --accent-blue: #3E7BFF;
            --live-red: #FF4D6D;
            --border-hair: rgba(255, 255, 255, 0.12);
            --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
            --btn-glow: 0 0 24px rgba(0, 230, 195, 0.35);
            --radius-card: 16px;
            --radius-pill: 24px;
            --radius-input: 12px;
            --radius-badge: 6px;
            --content-max: 1200px;
            --space-section: 88px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-deep);
            background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 24px 24px;
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

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

        /* ---- Header ---- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(10, 15, 30, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-hair);
        }

        .header-inner {
            max-width: 1400px;
            height: 100%;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: var(--btn-glow);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .brand-text span {
            color: var(--accent);
        }

        .header-search {
            flex: 1;
            max-width: 480px;
            height: 46px;
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-hair);
            border-radius: 24px;
            padding: 0 16px;
            gap: 10px;
            transition: border-color 0.3s, box-shadow 0.3s;
            margin: 0 auto;
        }

        .header-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 230, 195, 0.18);
        }

        .header-search .search-icon {
            color: var(--text-muted);
            font-size: 14px;
        }

        .header-search input {
            flex: 1;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 14px;
            height: 100%;
        }

        .header-search input::placeholder {
            color: #8892B0;
        }

        .header-search .kbd {
            font-size: 11px;
            padding: 2px 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid var(--border-hair);
            border-radius: 6px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            border-radius: var(--radius-pill);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: all 0.25s ease;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-link.active {
            color: var(--accent);
            background: rgba(0, 230, 195, 0.12);
            box-shadow: inset 0 0 0 1px rgba(0, 230, 195, 0.25);
        }

        .nav-link i {
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-hair);
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        /* ---- Hero Banner ---- */
        .cat-hero {
            position: relative;
            padding: 160px 0 80px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-color: var(--bg-deep);
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 15, 30, 0.82) 0%, rgba(10, 15, 30, 0.72) 55%, var(--bg-deep) 100%);
        }

        .cat-hero .container {
            position: relative;
            z-index: 1;
        }

        .cat-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .cat-breadcrumb a {
            color: var(--text-muted);
            transition: color 0.25s;
        }

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

        .cat-breadcrumb i {
            font-size: 11px;
            margin: 0 4px;
            color: var(--text-muted);
        }

        .cat-hero .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 77, 109, 0.16);
            border: 1px solid rgba(255, 77, 109, 0.4);
            color: #FF8FA3;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .cat-hero .cat-badge i {
            font-size: 10px;
            color: var(--live-red);
            animation: pulse 1.8s infinite;
        }

        .cat-hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

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

        .cat-hero .cat-desc {
            max-width: 620px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .cat-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-input);
            backdrop-filter: blur(8px);
            font-size: 14px;
            color: var(--text-secondary);
        }

        .hero-meta-item i {
            color: var(--accent);
        }

        .cat-hero .hero-cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ---- Buttons ---- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            color: #fff;
            box-shadow: var(--btn-glow);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(62, 123, 255, 0.5);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-hair);
            color: var(--text-primary);
            backdrop-filter: blur(8px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
            color: var(--text-primary);
        }

        .btn-ghost:active {
            transform: translateY(0);
        }

        /* ---- Section styles ---- */
        .section {
            padding: 88px 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 48px;
            gap: 24px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0;
        }

        .section-header h2 span {
            color: var(--accent);
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 15px;
            margin: 0;
            max-width: 360px;
        }

        /* ---- Feature cards (差异: 赛事直播服务特点) ---- */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            padding: 36px 30px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0.6;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 230, 195, 0.3);
            box-shadow: var(--card-shadow);
        }

        .feature-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(0, 230, 195, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent);
            margin-bottom: 20px;
        }

        .feature-card:nth-child(2) .icon-wrap {
            background: rgba(62, 123, 255, 0.15);
            color: var(--accent-blue);
        }

        .feature-card:nth-child(3) .icon-wrap {
            background: rgba(255, 77, 109, 0.12);
            color: var(--live-red);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        /* ---- Match Cards Grid ---- */
        .match-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            grid-auto-rows: minmax(260px, auto);
            gap: 24px;
        }

        .match-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .match-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 230, 195, 0.35);
            box-shadow: var(--card-shadow);
        }

        .match-card .cover {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }

        .match-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .match-card:hover .cover img {
            transform: scale(1.05);
        }

        .match-card .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--live-red);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .match-card .tag i {
            font-size: 8px;
            animation: pulse 1.6s infinite;
        }

        .match-card .tag.blue {
            background: var(--accent-blue);
        }

        .match-card .tag.green {
            background: rgba(0, 230, 195, 0.2);
            color: var(--accent);
        }

        .match-card .body {
            padding: 22px 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .match-card .body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .match-card .body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .match-card .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .match-card .meta .arrow {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 12px;
            transition: all 0.25s;
        }

        .match-card:hover .meta .arrow {
            background: rgba(0, 230, 195, 0.15);
            transform: translateX(2px);
        }

        .match-card.featured {
            grid-column: span 1;
            grid-row: span 1;
        }

        .match-card:nth-child(1) {
            grid-column: span 2;
        }

        .match-card:nth-child(1) .cover {
            aspect-ratio: 16/7;
        }

        /* ---- Steps / 流程 ---- */
        .flow-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-hair);
            border-bottom: 1px solid var(--border-hair);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .step {
            position: relative;
            padding: 28px 22px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            text-align: center;
            transition: all 0.3s;
        }

        .step:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(0, 230, 195, 0.3);
            transform: translateY(-3px);
        }

        .step-num {
            width: 44px;
            height: 44px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
        }

        .step h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ---- FAQ ---- */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-item.active {
            border-color: rgba(0, 230, 195, 0.4);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 24px;
            cursor: pointer;
            text-align: left;
            background: transparent;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 500;
            transition: color 0.25s;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-hair);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-secondary);
            transition: transform 0.35s ease, color 0.3s;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
            border-color: rgba(0, 230, 195, 0.4);
            background: rgba(0, 230, 195, 0.12);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer p {
            padding: 0 24px 22px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 16px;
        }

        /* ---- Tag links ---- */
        .tag-links {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        .tag-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-pill);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s;
        }

        .tag-link:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0, 230, 195, 0.08);
            transform: translateY(-2px);
        }

        .tag-link i {
            font-size: 13px;
        }

        /* ---- CTA ---- */
        .cta-section {
            position: relative;
            padding: 80px 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-color: var(--bg-deep);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 15, 30, 0.86);
        }

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

        .cta-inner {
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .cta-inner h2 span {
            color: var(--accent);
        }

        .cta-inner p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 32px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
        }

        .cta-form input {
            flex: 1;
            height: 48px;
            padding: 0 18px;
            border-radius: var(--radius-input);
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid var(--border-hair);
            color: var(--text-primary);
            font-size: 14px;
            transition: all 0.3s;
        }

        .cta-form input::placeholder {
            color: #8892B0;
        }

        .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 230, 195, 0.15);
            background: rgba(255, 255, 255, 0.13);
        }

        /* ---- Stats strip ---- */
        .stats-strip {
            background: var(--bg-panel);
            padding: 28px 0;
            border-bottom: 1px solid var(--border-hair);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-item {
            text-align: center;
            padding: 16px;
            border-radius: var(--radius-card);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-hair);
            transition: all 0.3s;
        }

        .stat-item:hover {
            border-color: rgba(0, 230, 195, 0.3);
            background: rgba(255, 255, 255, 0.07);
        }

        .stat-num {
            font-family: "Barlow Condensed", "DIN Alternate", "Roboto Mono", monospace;
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* ---- Footer ---- */
        .site-footer {
            background: #060A14;
            border-top: 1px solid var(--border-hair);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand-col .footer-brand {
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: color 0.25s;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ---- Animations ---- */
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        /* ---- Responsive ---- */
        @media screen and (max-width: 1024px) {
            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(10, 15, 30, 0.96);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-hair);
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 4px;
            }

            .main-nav.open {
                display: flex;
            }

            .nav-toggle {
                display: flex;
            }

            .header-inner {
                gap: 12px;
            }

            .header-search {
                max-width: 280px;
            }

            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .match-grid {
                grid-template-columns: 1fr 1fr;
            }

            .match-card:nth-child(1) {
                grid-column: span 2;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media screen and (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .cat-hero {
                padding: 130px 0 56px;
            }

            .cat-hero h1 {
                font-size: 32px;
            }

            .cat-hero .hero-cta .btn {
                width: 100%;
            }

            .hero-meta-item {
                font-size: 13px;
                padding: 8px 12px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                padding: 0 16px;
                gap: 8px;
            }

            .brand-text {
                font-size: 16px;
            }

            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }

            .header-search .kbd {
                display: none;
            }

            .header-search {
                max-width: 180px;
                padding: 0 10px;
                height: 40px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .match-grid {
                grid-template-columns: 1fr;
            }

            .match-card:nth-child(1) {
                grid-column: span 1;
            }

            .match-card:nth-child(1) .cover {
                aspect-ratio: 16/10;
            }

            .steps-grid {
                grid-template-columns: 1fr;
            }

            .cta-form {
                flex-direction: column;
            }

            .cta-form .btn {
                width: 100%;
            }

            .cat-hero h1 {
                font-size: 26px;
                line-height: 1.3;
            }

            .faq-question {
                font-size: 14px;
                padding: 16px 18px;
            }

            .section-header h2 {
                font-size: 24px;
            }

            .stat-num {
                font-size: 30px;
            }

            .btn {
                height: 44px;
                font-size: 14px;
                padding: 0 20px;
            }

            .tag-link {
                padding: 10px 18px;
                font-size: 13px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #0A0F1E;
            --bg-panel: #0F1628;
            --bg-elevated: #151F35;
            --text-primary: #EAF0FF;
            --text-secondary: #8B9BB4;
            --text-muted: #5B6B82;
            --accent: #00E6C3;
            --accent-blue: #3E7BFF;
            --live-red: #FF4D6D;
            --border-hair: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 24px;
            --radius-input: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(0, 230, 195, 0.35);
            --font-main: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Barlow Condensed", "DIN Alternate", "Roboto Mono", monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 28px 28px;
        }

        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius-card);
        }

        ul {
            list-style: none;
        }

        button {
            font-family: var(--font-main);
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        input {
            font-family: var(--font-main);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 72px;
            background: rgba(10, 15, 30, 0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-hair);
        }

        .header-inner {
            max-width: 1320px;
            margin: 0 auto;
            height: 100%;
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 0 24px;
            position: relative;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            color: #0A0F1E;
            font-size: 18px;
            box-shadow: 0 0 18px rgba(0, 230, 195, 0.3);
        }

        .brand-text {
            font-weight: 800;
            font-size: 22px;
            letter-spacing: 1px;
            line-height: 1.2;
        }
        .brand-text span {
            color: var(--accent);
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-hair);
            border-radius: 46px;
            height: 46px;
            padding: 0 12px 0 16px;
            flex: 1;
            max-width: 480px;
            margin: 0 auto;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .header-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(0, 230, 195, 0.15), var(--shadow-glow);
        }

        .header-search .search-icon {
            color: var(--text-secondary);
            font-size: 15px;
        }

        .header-search input {
            flex: 1;
            min-width: 0;
            border: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 14px;
            height: 100%;
        }
        .header-search input::placeholder {
            color: #8892B0;
        }
        .header-search input:focus {
            outline: none;
        }

        .header-search .kbd {
            font-size: 11px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-hair);
            border-radius: 6px;
            padding: 2px 8px;
            flex-shrink: 0;
            letter-spacing: 0.5px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 10px 14px;
            border-radius: 24px;
            transition: all 0.25s;
            white-space: nowrap;
        }

        .nav-link i {
            font-size: 14px;
            opacity: 0.8;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-link.active {
            color: #0A0F1E;
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            font-weight: 700;
            box-shadow: 0 4px 20px rgba(0, 230, 195, 0.25);
        }

        .nav-link.active i {
            color: #0A0F1E;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            border: 1px solid var(--border-hair);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .header-inner {
                gap: 14px;
                padding: 0 16px;
            }
            .header-search {
                max-width: none;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(10, 15, 30, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-hair);
                padding: 16px;
                display: none;
                gap: 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 14px 16px;
                border-radius: 12px;
                font-size: 15px;
            }
            .nav-toggle {
                display: inline-flex;
            }
        }

        /* ===== Category Banner ===== */
        .cat-banner {
            position: relative;
            margin-top: 72px;
            min-height: 420px;
            display: flex;
            align-items: center;
            background-image: linear-gradient(rgba(10, 15, 30, 0.82), rgba(10, 15, 30, 0.92)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border-hair);
        }

        .cat-banner-inner {
            padding: 80px 0 64px;
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
        }

        .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 230, 195, 0.12);
            border: 1px solid rgba(0, 230, 195, 0.3);
            color: var(--accent);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 2px;
            padding: 6px 14px;
            border-radius: 24px;
            margin-bottom: 18px;
            text-transform: uppercase;
        }
        .cat-badge::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px var(--accent);
        }

        .cat-banner h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }

        .cat-banner .lead {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .cat-banner-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .mini-stat {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-hair);
            border-radius: 16px;
            padding: 14px 22px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .mini-stat .num {
            display: block;
            font-family: var(--font-num);
            font-size: 30px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .mini-stat .label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* ===== Section ===== */
        .section {
            padding: 88px 0;
        }

        .section-head {
            margin-bottom: 48px;
            position: relative;
        }

        .section-head .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 3px;
            color: var(--accent);
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 560px;
        }

        .section-head.center {
            text-align: center;
        }
        .section-head.center p {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Feature Cards ===== */
        .features {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-hair);
            border-bottom: 1px solid var(--border-hair);
        }

        .feature-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            padding: 36px 28px;
            height: 100%;
            transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--accent-blue));
            opacity: 0.6;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 230, 195, 0.4);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(0, 230, 195, 0.15), rgba(62, 123, 255, 0.15));
            border: 1px solid rgba(0, 230, 195, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent);
            margin-bottom: 22px;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== Info Gallery ===== */
        .gallery-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
        }

        .gallery-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 230, 195, 0.35);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.4);
        }

        .gallery-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .gallery-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }

        .gallery-card:hover .gallery-img img {
            transform: scale(1.05);
        }

        .gallery-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(10, 15, 30, 0.8);
            border: 1px solid rgba(0, 230, 195, 0.4);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            backdrop-filter: blur(6px);
        }

        .gallery-body {
            padding: 20px 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .gallery-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .gallery-body p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }

        .gallery-link {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
        }
        .gallery-link i {
            transition: transform 0.25s;
        }
        .gallery-card:hover .gallery-link i {
            transform: translateX(4px);
        }

        .gallery-card.wide .gallery-img {
            aspect-ratio: 16/7;
        }

        /* ===== Scenes ===== */
        .scenes {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-hair);
            border-bottom: 1px solid var(--border-hair);
        }

        .scene-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            padding: 30px 24px;
            height: 100%;
            transition: all 0.25s;
            position: relative;
        }

        .scene-card:hover {
            border-color: rgba(62, 123, 255, 0.4);
            transform: translateY(-4px);
        }

        .scene-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(62, 123, 255, 0.12);
            border: 1px solid rgba(62, 123, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--accent-blue);
            margin-bottom: 18px;
        }

        .scene-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .scene-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Process ===== */
        .process-steps {
            display: flex;
            gap: 0;
            flex-wrap: wrap;
            position: relative;
        }

        .step {
            flex: 1;
            min-width: 220px;
            padding: 24px 28px;
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            border-radius: var(--radius-card);
            position: relative;
            transition: all 0.25s;
        }

        .step + .step {
            margin-left: -1px;
        }

        .step:hover {
            border-color: rgba(0, 230, 195, 0.35);
            z-index: 2;
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
        }

        .step-num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 800;
            color: rgba(0, 230, 195, 0.2);
            line-height: 1;
            margin-bottom: 14px;
        }

        .step h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-hair);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-hair);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-item.active {
            border-color: rgba(0, 230, 195, 0.35);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 22px 26px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            user-select: none;
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(0, 230, 195, 0.1);
            border: 1px solid rgba(0, 230, 195, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 14px;
            flex-shrink: 0;
            transition: transform 0.3s;
        }

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

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.active .faq-a {
            max-height: 300px;
        }

        .faq-a p {
            padding: 0 26px 22px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 88px 0;
            background-image: linear-gradient(rgba(10, 15, 30, 0.85), rgba(10, 15, 30, 0.9)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border-hair);
        }

        .cta-inner {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-inner p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-bottom: 36px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 240px;
            height: 48px;
            border-radius: var(--radius-input);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-hair);
            padding: 0 18px;
            color: var(--text-primary);
            font-size: 14px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .cta-input::placeholder {
            color: #8892B0;
        }
        .cta-input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(0, 230, 195, 0.15);
        }

        .cta-btn {
            height: 48px;
            padding: 0 30px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--accent), var(--accent-blue));
            color: #0A0F1E;
            font-weight: 700;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 0 24px rgba(0, 230, 195, 0.25);
            transition: all 0.25s;
            white-space: nowrap;
        }
        .cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(0, 230, 195, 0.4);
            color: #0A0F1E;
        }
        .cta-btn:active {
            transform: translateY(2px);
        }

        /* ===== Related tags ===== */
        .rel-tags {
            padding: 56px 0 0;
            text-align: center;
        }

        .rel-tags .tags-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 18px;
            display: block;
        }

        .rel-tags .tags-wrap {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .tag-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 24px;
            background: var(--bg-panel);
            border: 1px solid var(--border-hair);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.25s;
        }
        .tag-link:hover {
            color: var(--accent);
            border-color: rgba(0, 230, 195, 0.4);
            background: rgba(0, 230, 195, 0.06);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070B15;
            border-top: 1px solid var(--border-hair);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand-col .footer-brand {
            margin-bottom: 16px;
        }

        .footer-desc {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul a {
            color: var(--text-secondary);
            font-size: 14px;
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 24px 0;
            border-top: 1px solid var(--border-hair);
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 13px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 64px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .cat-banner {
                min-height: 380px;
            }
            .cat-banner h1 {
                font-size: 40px;
            }
        }

        @media (max-width: 768px) {
            .cat-banner {
                min-height: auto;
                padding: 40px 0;
            }
            .cat-banner-inner {
                padding: 48px 0 40px;
            }
            .cat-banner h1 {
                font-size: 34px;
            }
            .cat-banner .lead {
                font-size: 15px;
            }
            .cat-banner-stats {
                gap: 10px;
            }
            .mini-stat {
                padding: 12px 16px;
            }
            .mini-stat .num {
                font-size: 24px;
            }

            .section-head h2 {
                font-size: 28px;
            }

            .step + .step {
                margin-left: 0;
                margin-top: 12px;
            }
            .step {
                min-width: 100%;
            }

            .cta-inner h2 {
                font-size: 28px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-input {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                gap: 8px;
                padding: 0 12px;
            }
            .brand-text {
                font-size: 18px;
            }
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .header-search .kbd {
                display: none;
            }
            .header-search {
                padding-left: 12px;
                height: 42px;
            }

            .cat-banner {
                margin-top: 64px;
            }
            .site-header {
                height: 64px;
            }
            .main-nav {
                top: 64px;
            }

            .cat-banner h1 {
                font-size: 30px;
            }
            .cat-banner .lead {
                font-size: 14px;
            }
            .cat-badge {
                font-size: 11px;
            }

            .section {
                padding: 56px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .section-head h2 {
                font-size: 26px;
            }

            .feature-card {
                padding: 26px 20px;
            }
            .gallery-body {
                padding: 16px 18px 20px;
            }

            .faq-q {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-a p {
                padding: 0 20px 18px;
            }

            .cta-section {
                padding: 64px 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root{
  --bg-deep:#0A0F1E;
  --bg-panel:#0F1628;
  --bg-elevated:#151F35;
  --text-primary:#EAF0FF;
  --text-secondary:#8B9BB4;
  --text-muted:#5B6B82;
  --accent:#00E6C3;
  --accent-blue:#3E7BFF;
  --live-red:#FF4D6D;
  --border-hair:rgba(255,255,255,0.12);
  --radius-card:16px;
  --radius-btn:24px;
  --radius-input:12px;
  --shadow-card:0 8px 32px rgba(0,0,0,0.35);
  --glow-accent:0 0 24px rgba(0,230,195,0.35);
  --transition:0.25s ease;
  --font-sans:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Barlow Condensed","DIN Alternate","Roboto Mono",monospace;
  --container-max:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  background:var(--bg-deep);
  color:var(--text-primary);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(rgba(255,255,255,0.025) 1px,transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;transition:color var(--transition);}
ul,ol{list-style:none;}
button,input{font-family:inherit;}
.container{
  max-width:var(--container-max);
  margin:0 auto;
  padding:0 24px;
}
.row{
  max-width:var(--container-max);
  margin:0 auto;
}
.columns,.column{padding:0 12px;}
.grid-margin-x{margin:0 -12px;}

/* Header */
.site-header{
  position:fixed;
  top:0;left:0;width:100%;
  height:72px;
  background:rgba(10,15,30,0.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-hair);
  z-index:1000;
  transition:background 0.3s;
}
.header-inner{
  max-width:var(--container-max);
  height:100%;
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-icon{
  width:36px;height:36px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--accent-blue));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;
  box-shadow:0 0 16px rgba(0,230,195,0.3);
}
.brand-text{
  font-size:20px;font-weight:800;
  color:var(--text-primary);
  letter-spacing:0.5px;
  white-space:nowrap;
}
.brand-text span{color:var(--accent);}
.header-search{
  flex:1;
  max-width:480px;
  height:46px;
  display:flex;
  align-items:center;
  background:rgba(255,255,255,0.06);
  border:1px solid var(--border-hair);
  border-radius:23px;
  padding:0 16px;
  gap:10px;
  transition:all 0.25s;
  margin:0 auto;
}
.header-search:focus-within{
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(0,230,195,0.12);
}
.header-search .search-icon{color:var(--text-secondary);font-size:14px;}
.header-search input{
  flex:1;
  background:transparent;
  border:none;outline:none;
  color:var(--text-primary);
  font-size:14px;
  height:100%;
  min-width:0;
}
.header-search input::placeholder{color:#8892B0;}
.kbd{
  background:rgba(255,255,255,0.08);
  border:1px solid var(--border-hair);
  border-radius:4px;
  padding:2px 8px;
  font-size:12px;
  color:var(--text-secondary);
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex-shrink:0;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 14px;
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  border-radius:20px;
  transition:all var(--transition);
  white-space:nowrap;
}
.nav-link:hover{
  color:var(--text-primary);
  background:rgba(255,255,255,0.06);
}
.nav-link.active{
  color:var(--accent);
  background:rgba(0,230,195,0.1);
}
.nav-toggle{
  display:none;
  background:none;border:none;
  color:var(--text-primary);
  font-size:22px;
  cursor:pointer;
  padding:8px;
}

/* Generic Section */
.section{padding:88px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:48px;
  gap:24px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:32px;
  font-weight:700;
  line-height:1.3;
  margin-bottom:8px;
}
.section-head .subtitle{
  color:var(--text-secondary);
  font-size:15px;
  max-width:520px;
  line-height:1.7;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--accent);
  font-size:13px;
  font-weight:600;
  background:rgba(0,230,195,0.08);
  padding:4px 14px;
  border-radius:16px;
  margin-bottom:12px;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:24px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all var(--transition);
  border:none;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-blue));
  color:#fff;
  box-shadow:0 0 24px rgba(0,230,195,0.25);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 32px rgba(0,230,195,0.4);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(255,255,255,0.08);
  border:1px solid var(--border-hair);
  color:var(--text-primary);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{
  background:rgba(255,255,255,0.14);
  border-color:rgba(255,255,255,0.3);
}
.btn:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}

/* Category Banner */
.cat-banner{
  position:relative;
  min-height:460px;
  display:flex;
  align-items:center;
  padding:140px 0 80px;
  overflow:hidden;
}
.cat-banner-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
}
.cat-banner-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(to top,var(--bg-deep) 6%,rgba(10,15,30,0.78) 55%,rgba(10,15,30,0.45) 100%);
}
.cat-banner-content{
  position:relative;
  z-index:2;
  max-width:800px;
}
.cat-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,77,109,0.14);
  border:1px solid rgba(255,77,109,0.4);
  color:var(--live-red);
  padding:6px 16px;
  border-radius:20px;
  font-size:13px;
  font-weight:600;
  margin-bottom:20px;
}
.cat-banner-content h1{
  font-size:44px;
  font-weight:800;
  line-height:1.2;
  margin-bottom:16px;
  letter-spacing:0.5px;
}
.cat-banner-content p{
  font-size:17px;
  color:var(--text-secondary);
  line-height:1.8;
  max-width:640px;
  margin-bottom:32px;
}
.cat-banner-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}

/* Value Points */
.value-section{
  background:var(--bg-deep);
}
.value-row .cell{
  margin-bottom:24px;
}
.value-card{
  height:100%;
  background:linear-gradient(145deg,rgba(255,255,255,0.06),rgba(255,255,255,0.02));
  border:1px solid var(--border-hair);
  border-radius:var(--radius-card);
  padding:32px 24px;
  transition:all var(--transition);
  position:relative;
  overflow:hidden;
}
.value-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,var(--accent),transparent);
  opacity:0;
  transition:opacity var(--transition);
}
.value-card:hover{
  transform:translateY(-4px);
  border-color:rgba(0,230,195,0.35);
  box-shadow:var(--shadow-card);
}
.value-card:hover::before{opacity:1;}
.value-icon{
  width:48px;height:48px;
  border-radius:12px;
  background:linear-gradient(135deg,rgba(0,230,195,0.15),rgba(62,123,255,0.15));
  display:flex;align-items:center;justify-content:center;
  font-size:20px;
  color:var(--accent);
  margin-bottom:20px;
}
.value-card h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:10px;
}
.value-card p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.7;
}

/* News Grid */
.news-grid-section{
  background:linear-gradient(180deg,var(--bg-deep),var(--bg-panel));
}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  background:var(--bg-elevated);
  border:1px solid var(--border-hair);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:all var(--transition);
  position:relative;
}
.news-card:first-child{
  grid-column:span 2;
}
.news-card:hover{
  transform:translateY(-4px);
  border-color:rgba(0,230,195,0.35);
  box-shadow:var(--shadow-card);
}
.news-card-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
}
.news-card:first-child .news-card-media{
  aspect-ratio:16/9;
}
.news-card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.45s ease;
}
.news-card:hover .news-card-media img{
  transform:scale(1.05);
}
.news-card-tag{
  position:absolute;
  top:14px;left:14px;
  background:rgba(10,15,30,0.8);
  backdrop-filter:blur(8px);
  border:1px solid var(--border-hair);
  color:var(--accent);
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:6px;
}
.news-card-body{
  padding:20px;
}
.news-card-body h3{
  font-size:18px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card-body p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent);
  font-size:14px;
  font-weight:600;
  margin-top:14px;
  transition:gap var(--transition);
}
.news-card-link:hover{gap:10px;}

/* Scenario */
.scenario-section{
  background:var(--bg-deep);
}
.scenario-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-bottom:56px;
}
.scenario-card{
  background:var(--bg-panel);
  border:1px solid var(--border-hair);
  border-radius:var(--radius-card);
  padding:32px;
  transition:all var(--transition);
}
.scenario-card:hover{
  transform:translateY(-4px);
  background:var(--bg-elevated);
  border-color:rgba(62,123,255,0.4);
  box-shadow:var(--shadow-card);
}
.scenario-icon{
  width:44px;height:44px;
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
  color:var(--accent-blue);
  background:rgba(62,123,255,0.12);
  margin-bottom:16px;
}
.scenario-card h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:10px;
}
.scenario-card p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.7;
}
.process-strip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border-hair);
  border-radius:var(--radius-card);
  padding:32px 40px;
  gap:16px;
  flex-wrap:wrap;
}
.process-step{
  display:flex;
  align-items:center;
  gap:12px;
  flex:1;
  min-width:160px;
}
.step-num{
  font-family:var(--font-num);
  font-size:28px;
  font-weight:700;
  color:var(--accent);
  line-height:1;
}
.step-content h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:4px;
}
.step-content p{
  font-size:13px;
  color:var(--text-muted);
}
.step-arrow{
  color:var(--text-muted);
  font-size:14px;
  flex-shrink:0;
}

/* Stats */
.stats-band{
  background:linear-gradient(135deg,var(--bg-panel),var(--bg-elevated));
  border-top:1px solid var(--border-hair);
  border-bottom:1px solid var(--border-hair);
  padding:72px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.stat-item{
  text-align:center;
  padding:32px 16px;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border-hair);
  border-radius:var(--radius-card);
  transition:all var(--transition);
}
.stat-item:hover{
  border-color:rgba(0,230,195,0.3);
  transform:translateY(-2px);
}
.stat-num{
  font-family:var(--font-num);
  font-size:48px;
  font-weight:700;
  color:var(--accent);
  line-height:1;
}
.stat-label{
  font-size:14px;
  color:var(--text-secondary);
  margin-top:8px;
}

/* FAQ */
.faq-section{
  background:var(--bg-deep);
}
.faq-list{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border-hair);
  border-radius:16px;
  margin-bottom:16px;
  overflow:hidden;
  transition:border-color var(--transition);
}
.faq-item.open{
  border-color:rgba(0,230,195,0.35);
}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:22px 28px;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  color:var(--text-primary);
  background:transparent;
  border:none;
  width:100%;
  text-align:left;
}
.faq-icon{
  width:32px;height:32px;
  border-radius:50%;
  background:rgba(255,255,255,0.06);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  transition:transform 0.3s,background 0.3s,color 0.3s;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:rgba(0,230,195,0.2);
  color:var(--accent);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.35s ease;
}
.faq-item.open .faq-answer{
  max-height:320px;
}
.faq-answer p{
  padding:0 28px 24px;
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.8;
}

/* CTA */
.cta-section{
  position:relative;
  padding:88px 0;
  overflow:hidden;
}
.cta-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
}
.cta-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(10,15,30,0.92),rgba(10,15,30,0.78));
}
.cta-content{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:640px;
  margin:0 auto;
}
.cta-content h2{
  font-size:32px;
  font-weight:700;
  margin-bottom:16px;
  line-height:1.3;
}
.cta-content p{
  color:var(--text-secondary);
  font-size:16px;
  margin-bottom:32px;
  line-height:1.7;
}
.cta-form{
  display:flex;
  gap:12px;
  max-width:480px;
  margin:0 auto;
}
.cta-form input{
  flex:1;
  height:48px;
  border-radius:12px;
  border:1px solid var(--border-hair);
  background:rgba(255,255,255,0.06);
  padding:0 16px;
  color:var(--text-primary);
  outline:none;
  transition:border-color var(--transition),box-shadow var(--transition);
  min-width:0;
}
.cta-form input::placeholder{color:#8892B0;}
.cta-form input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(0,230,195,0.12);
}

/* Related Categories */
.related-cats{
  padding:56px 0 88px;
  background:var(--bg-panel);
  border-top:1px solid var(--border-hair);
}
.related-cats .section-head{
  text-align:center;
  justify-content:center;
  flex-direction:column;
  align-items:center;
  margin-bottom:32px;
}
.related-tags{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  justify-content:center;
}
.rel-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 28px;
  border-radius:24px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--border-hair);
  color:var(--text-primary);
  font-size:14px;
  font-weight:600;
  transition:all var(--transition);
}
.rel-tag:hover{
  background:rgba(0,230,195,0.1);
  border-color:var(--accent);
  color:var(--accent);
  transform:translateY(-2px);
}

/* Footer */
.site-footer{
  background:var(--bg-panel);
  border-top:1px solid var(--border-hair);
  padding:72px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:48px;
  margin-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-text{
  font-size:18px;
}
.footer-desc{
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.7;
  max-width:320px;
}
.footer-col h4{
  font-size:16px;
  font-weight:700;
  margin-bottom:20px;
  color:var(--text-primary);
}
.footer-col ul li{
  margin-bottom:12px;
}
.footer-col ul li a{
  color:var(--text-secondary);
  font-size:14px;
  transition:color var(--transition);
}
.footer-col ul li a:hover{
  color:var(--accent);
}
.footer-col ul li i{
  color:var(--text-muted);
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-top:24px;
  border-top:1px solid var(--border-hair);
  color:var(--text-muted);
  font-size:13px;
}

/* Responsive */
@media screen and (max-width:1024px){
  .main-nav{
    display:none;
    position:absolute;
    top:72px;
    left:0;right:0;
    background:rgba(10,15,30,0.96);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--border-hair);
    flex-direction:column;
    padding:16px 24px;
    gap:8px;
    align-items:stretch;
  }
  .main-nav.open{
    display:flex;
  }
  .nav-link{
    padding:12px 16px;
    border-radius:12px;
    font-size:15px;
  }
  .nav-toggle{
    display:block;
  }
  .value-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .news-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .news-card:first-child{
    grid-column:span 2;
  }
  .scenario-grid{
    grid-template-columns:1fr;
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .footer-grid{
    grid-template-columns:repeat(2,1fr);
    gap:40px;
  }
}
@media screen and (max-width:640px){
  .container,.header-inner{
    padding:0 16px;
  }
  .header-inner{
    gap:12px;
  }
  .brand-text{
    font-size:17px;
  }
  .brand-icon{
    width:32px;height:32px;
    font-size:14px;
  }
  .header-search{
    max-width:180px;
    padding:0 12px;
  }
  .header-search .kbd{
    display:none;
  }
  .cat-banner{
    min-height:400px;
    padding:110px 0 56px;
  }
  .cat-banner-content h1{
    font-size:32px;
  }
  .cat-banner-content p{
    font-size:15px;
  }
  .section{
    padding:56px 0;
  }
  .section-head h2{
    font-size:26px;
  }
  .news-grid{
    grid-template-columns:1fr;
  }
  .news-card:first-child{
    grid-column:span 1;
  }
  .process-strip{
    flex-direction:column;
    align-items:stretch;
    padding:24px;
  }
  .step-arrow{
    transform:rotate(90deg);
    text-align:center;
  }
  .stats-grid{
    grid-template-columns:1fr 1fr;
    gap:12px;
  }
  .stat-num{
    font-size:36px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .footer-bottom{
    flex-direction:column;
    gap:8px;
    text-align:center;
  }
  .cta-form{
    flex-direction:column;
  }
  .cat-banner-actions .btn{
    width:100%;
  }
  .faq-question{
    padding:18px 20px;
    font-size:15px;
  }
  .faq-answer p{
    padding:0 20px 20px;
  }
}