/* roulang page: index */
/* ==================== 设计变量 ==================== */
        :root {
            --bg-base: #060B16;
            --bg-elevated: rgba(255, 255, 255, 0.04);
            --bg-nav: rgba(7, 13, 26, 0.82);
            --primary: #1E63E6;
            --primary-hover: #2B6FF0;
            --primary-active: #1552C4;
            --primary-glow: rgba(30, 99, 230, 0.45);
            --accent-cyan: #2DE1FC;
            --accent-green: #00D4A0;
            --accent-gold: #F5B942;
            --danger: #FF5D5D;
            --text-high: #F2F6FC;
            --text-mid: #A8B3C7;
            --text-low: #63718A;
            --divider: rgba(255, 255, 255, 0.08);
            --border-glass: rgba(255, 255, 255, 0.10);
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-xs: 8px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.35), 0 0 24px rgba(30, 99, 230, 0.08);
            --shadow-btn: 0 0 20px rgba(30, 99, 230, 0.45), 0 4px 12px rgba(0, 0, 0, 0.3);
            --ease: cubic-bezier(0.22, 1, 0.36, 1);
            --transition: all 0.22s var(--ease);
        }

        /* ==================== Reset & Base ==================== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-mid);
            font-size: 16.5px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img { max-width: 100%; display: block; }
        a { color: var(--accent-cyan); text-decoration: none; transition: var(--transition); }
        a:hover { color: #6FE8FF; }
        button { font-family: inherit; cursor: pointer; border: none; background: none; }
        input, select, textarea { font-family: inherit; }
        ul, ol { list-style: none; }
        .grid-container { max-width: 1280px; }
        .font-num { font-feature-settings: "tnum"; }

        /* ==================== 通用板块 ==================== */
        .section { padding: 90px 0; }
        .section-head { text-align: center; margin-bottom: 56px; }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-high);
            line-height: 1.3;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .section-head .section-sub {
            font-size: 15px;
            color: var(--text-low);
            max-width: 560px;
            margin: 0 auto;
        }

        /* ==================== 按钮 ==================== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            border: 1px solid transparent;
            min-height: 44px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 0 28px rgba(30, 99, 230, 0.6), 0 6px 16px rgba(0, 0, 0, 0.35);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            background: var(--primary-active);
            transform: scale(0.98);
            box-shadow: 0 0 12px rgba(30, 99, 230, 0.3);
        }
        .btn-ghost {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-high);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            transform: translateY(-2px);
        }
        .btn-gold {
            background: var(--accent-gold);
            color: #1A1206;
            box-shadow: 0 0 20px rgba(245, 185, 66, 0.35), 0 4px 12px rgba(0, 0, 0, 0.3);
        }
        .btn-gold:hover {
            background: #FFC85A;
            color: #1A1206;
            box-shadow: 0 0 28px rgba(245, 185, 66, 0.5), 0 6px 16px rgba(0, 0, 0, 0.35);
            transform: translateY(-2px);
        }
        .btn-gold:active {
            transform: scale(0.98);
            box-shadow: 0 0 12px rgba(245, 185, 66, 0.3);
        }
        .btn-lg { padding: 16px 40px; font-size: 16px; border-radius: 14px; }
        .btn-block { width: 100%; }
        .btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        /* ==================== 导航 ==================== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 13, 26, 0.82);
            -webkit-backdrop-filter: blur(20px) saturate(160%);
            backdrop-filter: blur(20px) saturate(160%);
            border-bottom: 1px solid transparent;
            transition: var(--transition);
            height: 76px;
            display: flex;
            align-items: center;
        }
        .site-header.scrolled {
            height: 64px;
            background: rgba(7, 13, 26, 0.92);
            -webkit-backdrop-filter: blur(24px) saturate(180%);
            backdrop-filter: blur(24px) saturate(180%);
            border-bottom-color: var(--border-glass);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 16px rgba(30, 99, 230, 0.4);
            flex-shrink: 0;
        }
        .brand-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-high);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .main-nav .nav-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 18px;
            border-radius: var(--radius-xs);
            color: var(--text-mid);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .main-nav .nav-link:hover {
            color: var(--text-high);
            background: rgba(255, 255, 255, 0.05);
        }
        .main-nav .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(45, 225, 252, 0.08);
        }
        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent-cyan);
            box-shadow: 0 0 8px rgba(45, 225, 252, 0.5);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-cta .btn { padding: 9px 20px; font-size: 14px; min-height: 38px; }
        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-xs);
            background: rgba(255, 255, 255, 0.05);
            align-items: center;
            transition: var(--transition);
        }
        .hamburger:hover { background: rgba(255, 255, 255, 0.1); }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-high);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

        /* ==================== Hero ==================== */
        .hero {
            position: relative;
            min-height: 680px;
            display: flex;
            align-items: center;
            padding: 150px 0 80px;
            background: linear-gradient(180deg, rgba(6, 11, 22, 0.55), rgba(6, 11, 22, 0.85) 75%, var(--bg-base) 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            z-index: -1;
            transform: scale(1.03);
        }
        .hero .grid-container { position: relative; z-index: 2; width: 100%; }
        .hero-content { padding-right: 32px; }
        .hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-high);
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            max-width: 640px;
        }
        .hero-sub {
            font-size: 16px;
            color: var(--text-mid);
            max-width: 480px;
            margin-bottom: 36px;
            line-height: 1.7;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-glass-card {
            background: rgba(255, 255, 255, 0.05);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            backdrop-filter: blur(14px) saturate(140%);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            max-width: 420px;
            margin-left: auto;
        }
        .hero-glass-card .status-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--divider);
        }
        .hero-glass-card .status-item:last-child { border-bottom: none; }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .status-dot.green { background: var(--accent-green); box-shadow: 0 0 10px var(--accent-green); }
        .status-dot.cyan { background: var(--accent-cyan); box-shadow: 0 0 10px var(--accent-cyan); }
        .status-dot.gold { background: var(--accent-gold); box-shadow: 0 0 10px var(--accent-gold); }
        .status-item .status-label { font-size: 14px; color: var(--text-mid); flex: 1; }
        .status-item .status-value {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-high);
            font-feature-settings: "tnum";
        }
        .hero-stats {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 60px;
            padding: 28px 0;
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
            max-width: 780px;
        }
        .hero-stats .stat-item {
            text-align: center;
            flex: 1;
            position: relative;
        }
        .hero-stats .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 36px;
            background: var(--divider);
        }
        .stat-num {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--text-high);
            font-feature-settings: "tnum";
            line-height: 1.2;
        }
        .stat-label {
            display: block;
            font-size: 13px;
            color: var(--text-low);
            margin-top: 6px;
        }

        /* ==================== 信任区 ==================== */
        .trust-bar {
            padding: 36px 0;
            border-bottom: 1px solid var(--divider);
        }
        .trust-bar .trust-item {
            display: flex;
            align-items: center;
            gap: 12px;
            justify-content: center;
            padding: 12px 8px;
        }
        .trust-item i {
            font-size: 20px;
            color: var(--accent-cyan);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(45, 225, 252, 0.08);
            flex-shrink: 0;
        }
        .trust-item span {
            font-size: 14px;
            color: var(--text-mid);
            font-weight: 500;
            white-space: nowrap;
        }

        /* ==================== 对比表 ==================== */
        .benefit-section { padding-top: 90px; }
        .table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-card);
            -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
            position: relative;
        }
        .table-wrapper::-webkit-scrollbar { height: 6px; }
        .table-wrapper::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.03); border-radius: 3px; }
        .table-wrapper::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.12); border-radius: 3px; }
        .benefit-table {
            width: 100%;
            min-width: 760px;
            border-collapse: collapse;
            margin: 0;
            background: transparent;
        }
        .benefit-table th,
        .benefit-table td {
            padding: 18px 22px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 14.5px;
        }
        .benefit-table thead th {
            background: rgba(255, 255, 255, 0.06);
            font-weight: 600;
            color: var(--text-high);
            font-size: 15px;
            white-space: nowrap;
        }
        .benefit-table thead th:first-child { border-radius: 20px 0 0 0; }
        .benefit-table thead th:last-child { border-radius: 0 20px 0 0; }
        .benefit-table tbody tr:last-child td { border-bottom: none; }
        .benefit-table tbody tr:hover { background: rgba(255, 255, 255, 0.02); }
        .benefit-table td:first-child {
            font-weight: 500;
            color: var(--text-mid);
        }
        .benefit-table .col-gold {
            background: rgba(245, 185, 66, 0.05);
            box-shadow: inset 0 0 0 1px rgba(245, 185, 66, 0.12);
        }
        .benefit-table thead .col-gold {
            background: rgba(245, 185, 66, 0.12);
            color: var(--accent-gold);
            text-shadow: 0 0 12px rgba(245, 185, 66, 0.2);
        }
        .benefit-table .icon-check {
            color: var(--accent-green);
            font-size: 14px;
            text-shadow: 0 0 8px rgba(0, 212, 160, 0.5);
        }
        .benefit-table .icon-minus {
            color: var(--text-low);
            font-size: 14px;
        }
        .benefit-table .icon-gold {
            color: var(--accent-gold);
        }

        /* ==================== 时间线 ==================== */
        .timeline-section {
            background: linear-gradient(180deg, rgba(30, 99, 230, 0.04), rgba(0, 212, 160, 0.02));
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }
        .timeline {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
            padding: 20px 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, transparent, var(--primary), var(--accent-green), transparent);
            transform: translateX(-50%);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            width: 50%;
            padding: 0 48px 48px 0;
        }
        .timeline-item:nth-child(even) {
            margin-left: auto;
            padding: 0 0 48px 48px;
        }
        .timeline-item:last-child { padding-bottom: 0; }
        .timeline-item::after {
            content: '';
            position: absolute;
            right: -6px;
            top: 32px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 14px var(--accent-cyan);
            border: 2px solid #0A101E;
        }
        .timeline-item:nth-child(even)::after {
            right: auto;
            left: -6px;
        }
        .timeline-item:nth-child(3)::after { background: var(--accent-gold); box-shadow: 0 0 14px var(--accent-gold); }
        .timeline-item:nth-child(4)::after { background: var(--accent-gold); box-shadow: 0 0 18px var(--accent-gold); }
        .timeline-card {
            background: rgba(255, 255, 255, 0.04);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .timeline-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .badge-silver {
            background: rgba(192, 205, 224, 0.15);
            color: #B8C8DC;
            border: 1px solid rgba(192, 205, 224, 0.2);
        }
        .badge-gold {
            background: rgba(245, 185, 66, 0.15);
            color: var(--accent-gold);
            border: 1px solid rgba(245, 185, 66, 0.25);
        }
        .badge-diamond {
            background: linear-gradient(135deg, rgba(45, 225, 252, 0.15), rgba(245, 185, 66, 0.15));
            color: var(--accent-cyan);
            border: 1px solid rgba(45, 225, 252, 0.25);
        }
        .timeline-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 4px;
        }
        .timeline-card .timeline-level {
            font-size: 13px;
            color: var(--text-low);
            margin-bottom: 14px;
        }
        .timeline-card ul {
            margin: 0 0 16px;
            padding: 0;
            list-style: none;
        }
        .timeline-card ul li {
            position: relative;
            padding-left: 16px;
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.6;
            margin-bottom: 6px;
        }
        .timeline-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 9px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-cyan);
            opacity: 0.7;
        }
        .timeline-card ul li:nth-child(2)::before { background: var(--accent-green); }
        .timeline-card ul li:nth-child(3)::before { background: var(--accent-gold); }
        .timeline-card ul li:nth-child(4)::before { background: var(--primary); }
        .timeline-progress {
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--divider);
        }
        .progress-bar {
            height: 4px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.06);
            overflow: hidden;
            margin-bottom: 8px;
        }
        .progress-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent-green));
            box-shadow: 0 0 10px rgba(0, 212, 160, 0.3);
        }
        .progress-fill.gold-fill {
            background: linear-gradient(90deg, var(--acent-gold), var(--accent-gold));
            background: linear-gradient(90deg, #D19224, var(--accent-gold));
            box-shadow: 0 0 10px rgba(245, 185, 66, 0.3);
        }
        .progress-label {
            font-size: 13px;
            color: var(--text-low);
            display: flex;
            justify-content: space-between;
            font-feature-settings: "tnum";
        }

        /* ==================== 画廊 ==================== */
        .gallery-section { padding-top: 90px; }
        .gallery-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .gallery-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-high);
            letter-spacing: -0.02em;
        }
        .gallery-head .gallery-link {
            font-size: 14px;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            background: rgba(45, 225, 252, 0.08);
            transition: var(--transition);
        }
        .gallery-head .gallery-link:hover {
            background: rgba(45, 225, 252, 0.15);
            color: #6FE8FF;
        }
        .gallery-card {
            position: relative;
            display: block;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-glass);
            aspect-ratio: 4/3;
            transition: var(--transition);
        }
        .gallery-card-lg { aspect-ratio: 4/3; }
        .gallery-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s var(--ease);
        }
        .gallery-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(45, 225, 252, 0.2);
            transform: translateY(-3px);
        }
        .gallery-card:hover img { transform: scale(1.03); }
        .gallery-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(6, 11, 22, 0.85) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
        }
        .gallery-overlay .lock-icon {
            position: absolute;
            top: 14px;
            right: 14px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(6, 11, 22, 0.6);
            -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-mid);
            font-size: 14px;
            border: 1px solid var(--border-glass);
        }
        .gallery-overlay h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .gallery-overlay h4 {
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 0;
        }
        .gallery-overlay p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.5;
        }

        /* ==================== 开通表单 ==================== */
        .form-section {
            background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(30, 99, 230, 0.12), transparent 70%);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }
        .form-inner {
            max-width: 520px;
            margin: 0 auto;
            text-align: center;
        }
        .form-inner h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-high);
            letter-spacing: -0.02em;
            margin-bottom: 10px;
        }
        .form-inner .form-sub {
            font-size: 15px;
            color: var(--text-low);
            margin-bottom: 40px;
        }
        .member-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .member-form select,
        .member-form input[type="tel"] {
            width: 100%;
            height: 50px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-high);
            font-size: 15px;
            transition: var(--transition);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A8B3C7' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 40px;
        }
        .member-form select:hover,
        .member-form input[type="tel"]:hover {
            border-color: rgba(255, 255, 255, 0.2);
        }
        .member-form select:focus,
        .member-form input[type="tel"]:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 4px rgba(45, 225, 252, 0.15);
        }
        .member-form select option {
            background: #0A101E;
            color: var(--text-high);
        }
        .form-note {
            font-size: 13px;
            color: var(--text-low);
            margin-top: 20px;
            text-align: center;
        }

        /* ==================== FAQ ==================== */
        .faq-section { padding-bottom: 90px; }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(45, 225, 252, 0.2);
        }
        .faq-item.active {
            border-color: rgba(45, 225, 252, 0.25);
            box-shadow: 0 0 20px rgba(45, 225, 252, 0.05);
        }
        .faq-item-header {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            cursor: pointer;
            user-select: none;
        }
        .faq-item-header .faq-q {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(45, 225, 252, 0.12);
            color: var(--accent-cyan);
            font-size: 14px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .faq-item-header .faq-title {
            flex: 1;
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text-high);
            line-height: 1.5;
        }
        .faq-item-header .faq-arrow {
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-low);
            font-size: 14px;
            transition: transform 0.3s var(--ease);
            flex-shrink: 0;
        }
        .faq-item.active .faq-arrow { transform: rotate(180deg); }
        .faq-item-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s var(--ease);
        }
        .faq-item-content-inner {
            padding: 0 24px 20px 66px;
            font-size: 14.5px;
            color: var(--text-mid);
            line-height: 1.75;
            border-top: 1px solid var(--divider);
            padding-top: 16px;
        }

        /* ==================== CTA 横幅 ==================== */
        .cta-banner {
            padding: 56px 0;
            background: linear-gradient(90deg, rgba(30, 99, 230, 0.1), rgba(245, 185, 66, 0.06));
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-inner h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-high);
            line-height: 1.3;
        }
        .cta-inner p {
            font-size: 14px;
            color: var(--text-low);
            margin-top: 4px;
        }

        /* ==================== 资讯列表 ==================== */
        .news-section { padding-bottom: 90px; }
        .news-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .news-card {
            display: flex;
            gap: 20px;
            align-items: center;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .news-card:last-child { border-bottom: none; }
        .news-card:hover {
            background: rgba(255, 255, 255, 0.035);
        }
        .news-card:hover .news-info h3 a { color: var(--accent-cyan); }
        .news-thumb {
            width: 120px;
            height: 84px;
            border-radius: var(--radius-xs);
            overflow: hidden;
            flex-shrink: 0;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            display: block;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s var(--ease);
        }
        .news-card:hover .news-thumb img { transform: scale(1.04); }
        .news-info { flex: 1; min-width: 0; }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 6px;
            flex-wrap: wrap;
        }
        .news-meta .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(45, 225, 252, 0.12);
            color: #9BDCF5;
            white-space: nowrap;
        }
        .news-meta .news-date {
            font-size: 13px;
            color: var(--text-low);
            font-feature-settings: "tnum";
        }
        .news-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-high);
            line-height: 1.4;
            margin-bottom: 4px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-info h3 a { color: var(--text-high); }
        .news-summary {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.5;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .empty-state {
            text-align: center;
            padding: 60px 24px;
            border: 1px dashed rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            background: rgba(0, 0, 0, 0.2);
        }
        .empty-state i {
            font-size: 36px;
            color: var(--text-low);
            margin-bottom: 12px;
            display: block;
        }
        .empty-state p {
            font-size: 15px;
            color: var(--text-low);
        }

        /* ==================== 页脚 ==================== */
        .site-footer {
            background: #04070D;
            border-top: 1px solid rgba(45, 225, 252, 0.15);
            padding: 60px 0 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--divider);
        }
        .footer-brand .brand { margin-bottom: 16px; }
        .footer-brand .footer-desc {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 260px;
        }
        .footer-status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--accent-green);
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(0, 212, 160, 0.08);
            border: 1px solid rgba(0, 212, 160, 0.15);
        }
        .footer-status .pulse-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 212, 160, 0.5); }
            50% { opacity: 0.6; box-shadow: 0 0 0 4px rgba(0, 212, 160, 0); }
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 18px;
        }
        .footer-col ul { list-style: none; padding: 0; margin: 0; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-low);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
        }
        .footer-contact p {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .footer-contact p i {
            width: 20px;
            color: var(--accent-cyan);
            margin-right: 4px;
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-low);
        }
        .footer-bottom a { color: var(--text-low); }
        .footer-bottom a:hover { color: var(--accent-cyan); }

        /* ==================== 响应式 ==================== */
        @media (max-width: 1024px) {
            .section { padding: 72px 0; }
            .hero { min-height: 600px; padding: 130px 0 60px; }
            .hero h1 { font-size: 36px; }
            .main-nav .nav-link { padding: 0 12px; font-size: 14px; }
            .hero-glass-card { max-width: 380px; }
            .footer-top {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 32px;
            }
            .footer-contact { grid-column: 1 / -1; }
        }

        @media (max-width: 768px) {
            .site-header { height: 64px; }
            .site-header.scrolled { height: 60px; }
            .hamburger { display: flex; }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(7, 13, 26, 0.97);
                -webkit-backdrop-filter: blur(20px);
                backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                padding: 20px;
                gap: 8px;
                border-bottom: 1px solid var(--border-glass);
                transform: translateY(-20px);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 999;
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav .nav-link {
                height: 48px;
                padding: 0 16px;
                justify-content: flex-start;
                font-size: 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav .nav-link.active::after {
                left: 16px;
                transform: none;
                width: 3px;
                height: 20px;
                top: 50%;
                bottom: auto;
                margin-top: -10px;
            }
            .nav-cta .btn { display: none; }
            .nav-cta .hamburger { display: flex; }
            .hero { padding: 110px 0 50px; min-height: auto; }
            .hero h1 { font-size: 30px; }
            .hero-content { padding-right: 0; margin-bottom: 32px; }
            .hero-glass-card { margin-left: 0; max-width: 100%; }
            .hero-stats { flex-wrap: wrap; gap: 20px; margin-top: 40px; }
            .hero-stats .stat-item { flex: 1 1 33%; }
            .hero-stats .stat-item:not(:last-child)::after { display: none; }
            .stat-num { font-size: 22px; }
            .section { padding: 56px 0; }
            .section-head { margin-bottom: 36px; }
            .section-head h2 { font-size: 24px; }
            .trust-bar .trust-item { justify-content: flex-start; padding: 8px 4px; }
            .timeline::before { left: 20px; }
            .timeline-item {
                width: 100%;
                padding: 0 0 40px 56px !important;
                margin-left: 0 !important;
            }
            .timeline-item::after {
                left: 13px !important;
                right: auto !important;
            }
            .timeline-card { padding: 20px; }
            .gallery-head h2 { font-size: 24px; }
            .gallery-card { aspect-ratio: 16/10; }
            .form-inner h2 { font-size: 24px; }
            .cta-inner { flex-direction: column; text-align: center; }
            .news-card { flex-direction: column; align-items: flex-start; padding: 16px; }
            .news-thumb { width: 100%; height: 160px; }
            .news-summary { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
            .footer-top { grid-template-columns: 1fr; gap: 32px; }
            .footer-brand .footer-desc { max-width: 100%; }
        }

        @media (max-width: 640px) {
            .hero h1 { font-size: 26px; }
            .hero-buttons .btn { width: 100%; }
            .hero-stats .stat-item { flex: 1 1 100%; border-bottom: 1px solid var(--divider); padding-bottom: 16px; }
            .hero-stats .stat-item:last-child { border-bottom: none; padding-bottom: 0; }
            .trust-bar .trust-item { flex-direction: column; text-align: center; gap: 8px; }
            .gallery-head { flex-direction: column; align-items: flex-start; }
            .member-form button { width: 100%; }
            .faq-item-header { padding: 16px; }
            .faq-item-content-inner { padding: 0 16px 16px 56px; }
            .btn-lg { width: 100%; text-align: center; }
            .cta-inner .btn { width: 100%; }
            .footer-bottom p { font-size: 12px; }
        }

/* roulang page: category1 */
:root {
            --bg-base: #060B16;
            --bg-elevated: rgba(255, 255, 255, 0.04);
            --bg-nav: rgba(7, 13, 26, 0.82);
            --primary: #1E63E6;
            --primary-hover: #2B6FF0;
            --primary-active: #1552C4;
            --primary-glow: rgba(30, 99, 230, 0.45);
            --accent-cyan: #2DE1FC;
            --accent-green: #00D4A0;
            --accent-gold: #F5B942;
            --danger: #FF5D5D;
            --text-high: #F2F6FC;
            --text-mid: #A8B3C7;
            --text-low: #63718A;
            --divider: rgba(255, 255, 255, 0.08);
            --border-glass: rgba(255, 255, 255, 0.10);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.35), 0 0 24px rgba(30, 99, 230, 0.08);
            --transition-base: 200ms cubic-bezier(0.22, 1, 0.36, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-high);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            object-fit: cover;
        }

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

        a:hover {
            color: var(--text-high);
        }

        button,
        input,
        select {
            font-family: inherit;
        }

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

        .glass-card {
            background: var(--bg-elevated);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }

        .section-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title .title-icon {
            color: var(--accent-cyan);
            font-size: 18px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: var(--bg-nav);
            backdrop-filter: blur(20px) saturate(160%);
            -webkit-backdrop-filter: blur(20px) saturate(160%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-base);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            transition: height var(--transition-base);
        }

        .site-header.scrolled .header-inner {
            height: 60px;
        }

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

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #FF6A00, #FF2E63);
            border-radius: 10px;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 0 16px rgba(255, 46, 99, 0.35);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-high);
            letter-spacing: -0.01em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav .nav-link {
            position: relative;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-mid);
            border-radius: 8px;
            transition: color var(--transition-base), background var(--transition-base);
        }

        .main-nav .nav-link::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 0;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            opacity: 0;
            transform: scaleX(0.5);
            transition: all var(--transition-base);
        }

        .main-nav .nav-link:hover,
        .main-nav .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(45, 225, 252, 0.06);
        }

        .main-nav .nav-link:hover::after,
        .main-nav .nav-link.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--accent-gold), #ffa726);
            color: #1A1206;
            font-size: 14px;
            font-weight: 600;
            border-radius: 10px;
            transition: all var(--transition-base);
            box-shadow: 0 0 20px rgba(245, 185, 66, 0.3);
            flex-shrink: 0;
        }

        .header-cta:hover {
            background: linear-gradient(135deg, #ffc24a, #ffb300);
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(245, 185, 66, 0.45);
            color: #1A1206;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-glass);
            color: var(--text-high);
            font-size: 20px;
            padding: 8px 14px;
            border-radius: 10px;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .mobile-toggle:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        /* ===== 频道横幅 ===== */
        .category-banner {
            padding: 140px 0 60px;
            background: linear-gradient(180deg, rgba(7, 13, 26, 0.6) 0%, #060B16 100%);
            position: relative;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: -1;
        }

        .banner-inner {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 40px;
        }

        .banner-inner h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0;
            color: var(--text-high);
            letter-spacing: -0.02em;
            max-width: 600px;
        }

        .banner-desc {
            font-size: 15px;
            color: var(--text-mid);
            max-width: 360px;
            line-height: 1.8;
            text-align: right;
            margin: 0;
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-low);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--text-low);
        }

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

        .breadcrumb span {
            margin: 0 6px;
            color: var(--text-low);
        }

        /* ===== 分类页主要内容 ===== */
        .category-main-content {
            padding: 60px 0 80px;
        }

        .content-grid {
            display: flex;
            gap: 32px;
        }

        .main-col {
            flex: 0 0 66.666%;
            max-width: 66.666%;
        }

        .side-col {
            flex: 0 0 33.333%;
            max-width: 33.333%;
        }

        .guide-intro-card {
            padding: 32px;
            margin-bottom: 28px;
        }

        .guide-intro-card h2 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-high);
        }

        .guide-intro-card h2 i {
            color: var(--accent-cyan);
            margin-right: 10px;
        }

        .guide-intro-card p {
            color: var(--text-mid);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .guide-intro-card p:last-child {
            margin-bottom: 0;
        }

        .entry-steps {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin: 28px 0;
        }

        .entry-step-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition-base);
        }

        .entry-step-item:hover {
            border-color: rgba(45, 225, 252, 0.3);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            transform: translateY(-4px);
        }

        .step-number {
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(45, 225, 252, 0.15);
            color: var(--accent-cyan);
            font-size: 14px;
            font-weight: 700;
            border-radius: 8px;
            margin-bottom: 14px;
        }

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

        .entry-step-item p {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
        }

        .entry-tips {
            background: rgba(0, 212, 160, 0.05);
            border: 1px solid rgba(0, 212, 160, 0.15);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-top: 28px;
        }

        .entry-tips h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--accent-green);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .entry-tips ul {
            list-style: none;
            padding: 0;
        }

        .entry-tips li {
            color: var(--text-mid);
            font-size: 14px;
            padding: 6px 0;
            padding-left: 22px;
            position: relative;
        }

        .entry-tips li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-green);
            font-weight: 700;
        }

        .device-guide {
            margin-top: 28px;
        }

        .device-guide h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .device-guide h3 i {
            color: var(--accent-cyan);
        }

        .device-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .device-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition-base);
        }

        .device-card:hover {
            border-color: rgba(45, 225, 252, 0.25);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .device-icon {
            width: 40px;
            height: 40px;
            min-width: 40px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            background: rgba(45, 225, 252, 0.1);
            color: var(--accent-cyan);
        }

        .device-content h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-high);
        }

        .device-content p {
            font-size: 13px;
            color: var(--text-mid);
            margin: 0;
            line-height: 1.7;
        }

        /* ===== 侧栏 ===== */
        .side-col .side-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 24px;
        }

        .side-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-card-title i {
            color: var(--accent-gold);
        }

        .hot-list {
            list-style: none;
            padding: 0;
        }

        .hot-list li {
            display: flex;
            align-items: baseline;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--divider);
        }

        .hot-list li:last-child {
            border-bottom: none;
        }

        .hot-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-cyan);
            font-feature-settings: "tnum";
        }

        .hot-list li a {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.5;
            transition: color var(--transition-base);
        }

        .hot-list li a:hover {
            color: var(--accent-cyan);
        }

        .side-cta-card {
            text-align: center;
            padding: 32px 20px;
            background: linear-gradient(135deg, rgba(245, 185, 66, 0.08), rgba(245, 185, 66, 0.02));
            border-color: rgba(245, 185, 66, 0.2);
        }

        .side-cta-card .cta-icon {
            width: 48px;
            height: 48px;
            background: rgba(245, 185, 66, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            color: var(--accent-gold);
            font-size: 20px;
        }

        .side-cta-card h3 {
            color: var(--text-high);
            font-size: 18px;
            margin-bottom: 8px;
        }

        .side-cta-card p {
            color: var(--text-mid);
            font-size: 14px;
            margin-bottom: 20px;
        }

        .gold-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent-gold), #ffa726);
            color: #1A1206 !important;
            padding: 12px 28px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition-base);
            box-shadow: 0 0 20px rgba(245, 185, 66, 0.25);
            border: none;
            cursor: pointer;
        }

        .gold-btn:hover {
            background: linear-gradient(135deg, #ffc24a, #ffb300);
            box-shadow: 0 0 30px rgba(245, 185, 66, 0.4);
            transform: translateY(-2px);
            color: #1A1206;
        }

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

        .gold-btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        /* ===== 底部 CTA 横幅 ===== */
        .bottom-cta {
            background: linear-gradient(135deg, rgba(30, 99, 230, 0.15), rgba(45, 225, 252, 0.05));
            border: 1px solid rgba(45, 225, 252, 0.15);
            border-radius: var(--radius-md);
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .bottom-cta h2 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 8px;
        }

        .bottom-cta p {
            color: var(--text-mid);
            font-size: 15px;
            margin: 0;
        }

        .blue-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 14px 32px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition-base);
            box-shadow: 0 0 20px var(--primary-glow);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .blue-btn:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 28px rgba(30, 99, 230, 0.6);
            transform: translateY(-2px);
            color: #fff;
        }

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

        .blue-btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-section h2 {
            text-align: center;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 40px;
        }

        .faq-list {
            list-style: none;
        }

        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(45, 225, 252, 0.2);
        }

        .faq-question {
            padding: 22px 24px;
            display: flex;
            align-items: center;
            gap: 14px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-high);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition-base);
        }

        .faq-question .q-mark {
            width: 26px;
            height: 26px;
            background: rgba(45, 225, 252, 0.12);
            color: var(--accent-cyan);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .faq-question .arrow {
            margin-left: auto;
            color: var(--text-low);
            font-size: 14px;
            transition: transform var(--transition-base);
        }

        .faq-item.active .arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 22px;
            border-left: 3px solid var(--accent-cyan);
            margin: 0 24px 0 44px;
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.85;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #04070D;
            border-top: 1px solid rgba(45, 225, 252, 0.2);
            padding: 60px 0 0;
        }

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

        .footer-brand .brand {
            margin-bottom: 14px;
        }

        .footer-brand .brand-icon {
            background: linear-gradient(135deg, #FF6A00, #FF2E63);
            box-shadow: 0 0 14px rgba(255, 46, 99, 0.3);
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .footer-status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--accent-green);
            background: rgba(0, 212, 160, 0.1);
            padding: 6px 14px;
            border-radius: 999px;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            animation: pulse 1.6s infinite;
        }

        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(0, 212, 160, 0.5); }
            100% { box-shadow: 0 0 0 8px rgba(0, 212, 160, 0); }
        }

        .footer-col h4 {
            color: var(--text-high);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 18px;
        }

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

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

        .footer-col ul a {
            color: var(--text-mid);
            font-size: 14px;
            transition: color var(--transition-base), padding-left var(--transition-base);
        }

        .footer-col ul a:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }

        .footer-col p {
            color: var(--text-low);
            font-size: 13px;
            margin-bottom: 12px;
            display: flex;
            gap: 10px;
        }

        .footer-col p i {
            color: var(--accent-cyan);
            margin-right: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--divider);
            padding: 20px 0;
            text-align: center;
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .content-grid {
                flex-direction: column;
            }
            .main-col, .side-col {
                flex: 0 0 100%;
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(7, 13, 26, 0.95);
                backdrop-filter: blur(24px) saturate(160%);
                -webkit-backdrop-filter: blur(24px) saturate(160%);
                flex-direction: column;
                padding: 24px;
                gap: 8px;
                transform: translateY(-120%);
                transition: transform 300ms cubic-bezier(0.22, 1, 0.36, 1);
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .main-nav .nav-link {
                width: 100%;
                padding: 14px 16px;
                text-align: center;
                font-size: 16px;
                border-left: 2px solid transparent;
            }
            .main-nav .nav-link::after {
                display: none;
            }
            .main-nav .nav-link:hover,
            .main-nav .nav-link.active {
                border-left-color: var(--accent-cyan);
                background: rgba(45, 225, 252, 0.08);
            }
            .header-cta {
                padding: 10px 16px;
                font-size: 14px;
            }
            .banner-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .banner-desc {
                text-align: left;
            }
            .entry-steps {
                grid-template-columns: 1fr;
            }
            .device-grid {
                grid-template-columns: 1fr;
            }
            .bottom-cta {
                flex-direction: column;
                text-align: center;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 640px) {
            .grid-container {
                padding: 0 16px;
            }
            .footer-top {
                grid-template-columns: 1fr;
            }
            .brand-text {
                font-size: 17px;
            }
            .banner-inner h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 18px;
            }
            .gold-btn, .blue-btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --bg-base: #060B16;
            --bg-elevated: rgba(255, 255, 255, 0.04);
            --bg-nav: rgba(7, 13, 26, 0.82);
            --primary: #1E63E6;
            --primary-glow: rgba(30, 99, 230, 0.45);
            --accent-cyan: #2DE1FC;
            --accent-green: #00D4A0;
            --accent-gold: #F5B942;
            --danger: #FF5D5D;
            --text-high: #F2F6FC;
            --text-mid: #A8B3C7;
            --text-low: #63718A;
            --divider: rgba(255, 255, 255, 0.08);
            --border-glass: rgba(255, 255, 255, 0.10);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.35), 0 0 24px rgba(30, 99, 230, 0.08);
            --shadow-glow: 0 0 20px var(--primary-glow), 0 4px 12px rgba(0, 0, 0, 0.3);
            --transition: 0.2s cubic-bezier(0.22, 1, 0.36, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-high);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            font-feature-settings: "tnum";
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .grid-container {
            max-width: 1280px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg-nav);
            -webkit-backdrop-filter: blur(20px) saturate(160%);
            backdrop-filter: blur(20px) saturate(160%);
            border-bottom: 1px solid transparent;
            transition: background 0.25s ease, border-color 0.25s ease;
        }

        .site-header.scrolled {
            background: rgba(7, 13, 26, 0.92);
            border-bottom-color: var(--border-glass);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-high);
            font-weight: 800;
            font-size: 20px;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .brand:hover {
            color: var(--text-high);
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 0 14px rgba(30, 99, 230, 0.35);
            flex-shrink: 0;
        }

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

        .nav-link {
            padding: 8px 14px;
            border-radius: 8px;
            color: var(--text-mid);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: background 0.2s ease, color 0.2s ease;
        }

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

        .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(45, 225, 252, 0.08);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
        }

        .btn-header {
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid var(--border-glass);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-high);
            font-size: 18px;
            cursor: pointer;
            position: relative;
            z-index: 1001;
            transition: background 0.2s ease;
        }

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: none;
            border-radius: 10px;
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
            font-family: inherit;
            line-height: 1.4;
            min-height: 44px;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            background: #2B6FF0;
            transform: translateY(-2px);
            box-shadow: 0 0 28px var(--primary-glow), 0 6px 16px rgba(0, 0, 0, 0.35);
        }

        .btn-primary:active {
            background: #1552C4;
            transform: scale(0.98);
            box-shadow: none;
        }

        .btn-gold {
            background: var(--accent-gold);
            color: #1A1206;
            box-shadow: 0 0 20px rgba(245, 185, 66, 0.35), 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .btn-gold:hover {
            background: #ffc95c;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(245, 185, 66, 0.5), 0 6px 16px rgba(0, 0, 0, 0.35);
        }

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

        .btn-outline {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-high);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .btn-block {
            width: 100%;
        }

        /* ===== Channel Banner ===== */
        .channel-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            padding: 130px 0 52px;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            overflow: hidden;
        }

        .channel-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 11, 22, 0.55) 20%, rgba(6, 11, 22, 0.96) 100%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 960px;
        }

        .banner-content h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .banner-content p {
            color: var(--text-mid);
            font-size: 17px;
            max-width: 620px;
        }

        /* ===== Section Layout ===== */
        .category-main {
            padding: 88px 0;
        }

        .section-bottom {
            padding-bottom: 80px;
        }

        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(45, 225, 252, 0.12);
            color: #9BDCF5;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .block-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .block-subtitle {
            color: var(--text-mid);
            font-size: 16px;
            margin-bottom: 32px;
            max-width: 720px;
        }

        .intro-block {
            margin-bottom: 48px;
        }

        .intro-block h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .intro-block p {
            color: var(--text-mid);
            font-size: 16px;
            max-width: 80ch;
        }

        /* ===== Feature Card ===== */
        .feature-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            height: 100%;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .feature-card img {
            width: 100%;
            height: 210px;
            object-fit: cover;
        }

        .feature-card .card-body {
            padding: 22px 24px 24px;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 12px 0 8px;
        }

        .feature-card p {
            color: var(--text-mid);
            font-size: 15px;
            margin-bottom: 14px;
        }

        .feature-card ul li {
            position: relative;
            padding-left: 20px;
            color: var(--text-mid);
            font-size: 14.5px;
            line-height: 1.6;
            margin-bottom: 8px;
        }

        .feature-card ul li::before {
            content: "";
            position: absolute;
            left: 2px;
            top: 9px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 6px rgba(0, 212, 160, 0.6);
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
        }

        .badge-silver {
            background: rgba(168, 179, 199, 0.15);
            color: #C3CEDC;
        }

        .badge-gold {
            background: rgba(245, 185, 66, 0.14);
            color: var(--accent-gold);
        }

        .badge-diamond {
            background: rgba(45, 225, 252, 0.12);
            color: #9BDCF5;
        }

        /* ===== Compare Table ===== */
        .compare-block {
            margin-top: 72px;
        }

        .table-scroll {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-glass);
            background: var(--bg-elevated);
            box-shadow: var(--shadow-card);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            -webkit-overflow-scrolling: touch;
        }

        .compare-table {
            width: 100%;
            min-width: 640px;
            border-collapse: separate;
            border-spacing: 0;
            font-size: 15px;
            margin: 0;
        }

        .compare-table th,
        .compare-table td {
            padding: 16px 18px;
            text-align: left;
            border: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-mid);
        }

        .compare-table thead th {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-high);
            font-weight: 600;
            white-space: nowrap;
        }

        .compare-table tbody tr:last-child td {
            border-bottom: none;
        }

        .compare-table td:first-child {
            color: var(--text-high);
            font-weight: 500;
        }

        .compare-table .highlight-col {
            background: rgba(245, 185, 66, 0.05);
            box-shadow: inset 0 0 24px rgba(245, 185, 66, 0.06);
        }

        .compare-table thead .highlight-col {
            background: rgba(245, 185, 66, 0.1);
            color: var(--accent-gold);
        }

        .icon-check {
            color: var(--accent-green);
            text-shadow: 0 0 8px rgba(0, 212, 160, 0.6);
        }

        .icon-minus {
            color: var(--text-low);
        }

        .table-tip {
            font-size: 13px;
            color: var(--text-low);
            margin-top: 12px;
        }

        /* ===== Flow ===== */
        .flow-block {
            margin-top: 72px;
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .step-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .step-num {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 14px;
            box-shadow: 0 0 14px var(--primary-glow);
        }

        .step-card h3 {
            font-size: 17px;
            margin-bottom: 8px;
        }

        .step-card p {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.65;
        }

        /* ===== FAQ ===== */
        .faq-block {
            margin-top: 72px;
        }

        .faq-list {
            margin-top: 28px;
            max-width: 900px;
        }

        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
            transition: border-color 0.2s ease;
        }

        .faq-item:hover {
            border-color: rgba(45, 225, 252, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            background: none;
            color: var(--text-high);
            width: 100%;
            text-align: left;
            font-family: inherit;
            min-height: 56px;
        }

        .faq-question .q-mark {
            color: var(--accent-cyan);
            font-weight: 800;
            flex-shrink: 0;
        }

        .faq-icon {
            margin-left: auto;
            color: var(--text-mid);
            transition: transform 0.25s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.28s ease;
        }

        .faq-answer-inner {
            border-top: 1px solid var(--divider);
            padding: 0 20px 20px 52px;
            color: var(--text-mid);
            font-size: 15px;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: sticky;
            top: 100px;
            margin-bottom: 32px;
        }

        .glass-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px;
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
        }

        .glass-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .hot-list li {
            display: flex;
            gap: 14px;
            align-items: baseline;
            padding: 13px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 14.5px;
        }

        .hot-list li:last-child {
            border-bottom: none;
        }

        .hot-num {
            color: var(--accent-cyan);
            font-weight: 700;
            font-size: 13px;
            min-width: 24px;
            font-feature-settings: "tnum";
        }

        .hot-list a {
            color: var(--text-mid);
            transition: color 0.2s ease;
            line-height: 1.55;
        }

        .hot-list a:hover {
            color: var(--accent-cyan);
        }

        .cta-card {
            background: rgba(245, 185, 66, 0.06);
            border: 1px solid rgba(245, 185, 66, 0.22);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            margin-top: 24px;
            text-align: center;
        }

        .cta-card h3 {
            color: var(--accent-gold);
            font-size: 21px;
            margin-bottom: 10px;
        }

        .cta-card p {
            color: var(--text-mid);
            font-size: 14px;
            margin-bottom: 20px;
            line-height: 1.65;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            position: relative;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            padding: 80px 0;
            text-align: center;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 99, 230, 0.62), rgba(6, 11, 22, 0.92) 70%);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: var(--text-mid);
            font-size: 16px;
            margin-bottom: 28px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #04070D;
            position: relative;
            border-top: none;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding: 64px 0 40px;
        }

        .footer-brand .brand {
            font-size: 20px;
        }

        .footer-desc {
            color: var(--text-mid);
            font-size: 14.5px;
            margin: 14px 0 14px;
            max-width: 32ch;
        }

        .footer-status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--accent-green);
            font-weight: 500;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 0 0 rgba(0, 212, 160, 0.5);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(0, 212, 160, 0.5);
            }
            70% {
                box-shadow: 0 0 0 8px rgba(0, 212, 160, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(0, 212, 160, 0);
            }
        }

        .footer-col h4 {
            color: var(--text-high);
            font-size: 16px;
            margin-bottom: 14px;
        }

        .footer-col li {
            margin-bottom: 10px;
        }

        .footer-col a {
            color: var(--text-mid);
            font-size: 14.5px;
            transition: color 0.2s ease;
        }

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

        .footer-contact p {
            color: var(--text-mid);
            font-size: 14px;
            margin-bottom: 10px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 18px 0;
            text-align: center;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 4px;
            }

            .nav-link {
                font-size: 14px;
                padding: 8px 10px;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: inline-flex;
            }

            .btn-header {
                display: none;
            }

            .main-nav {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: rgba(7, 13, 26, 0.98);
                -webkit-backdrop-filter: blur(24px);
                backdrop-filter: blur(24px);
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 10px;
                display: none;
                z-index: 1000;
            }

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

            .nav-link {
                font-size: 20px;
                padding: 16px 0;
                color: var(--text-high);
                width: 100%;
                text-align: center;
                border-radius: 0;
            }

            .nav-link.active::after {
                left: 50%;
                right: auto;
                transform: translateX(-50%);
                width: 48px;
            }

            .channel-banner {
                min-height: 300px;
                padding-top: 110px;
            }

            .banner-content h1 {
                font-size: 30px;
            }

            .category-main {
                padding: 64px 0;
            }

            .block-title {
                font-size: 26px;
            }

            .flow-steps {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 48px 0 32px;
            }
        }

        @media (max-width: 640px) {
            .header-inner {
                height: 66px;
            }

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

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

            .channel-banner {
                min-height: 260px;
                padding-top: 96px;
                padding-bottom: 40px;
            }

            .banner-content h1 {
                font-size: 26px;
            }

            .banner-content p {
                font-size: 15px;
            }

            .category-main {
                padding: 52px 0;
            }

            .feature-card img {
                height: 180px;
            }

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

            .cta-banner {
                padding: 60px 0;
            }

            .cta-inner h2 {
                font-size: 26px;
            }

            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .compare-table th,
            .compare-table td {
                padding: 14px 14px;
                font-size: 14px;
            }

            .faq-answer-inner {
                padding-left: 20px;
            }

            .footer-top {
                gap: 28px;
                padding: 40px 0 28px;
            }
        }

/* roulang page: article */
:root {
  --bg-base: #060B16;
  --bg-elevated: rgba(255,255,255,0.04);
  --bg-nav: rgba(7, 13, 26, 0.82);
  --primary: #1E63E6;
  --primary-hover: #2B6FF0;
  --primary-active: #1552C4;
  --primary-glow: rgba(30, 99, 230, 0.45);
  --accent-cyan: #2DE1FC;
  --accent-green: #00D4A0;
  --accent-gold: #F5B942;
  --danger: #FF5D5D;
  --text-high: #F2F6FC;
  --text-mid: #A8B3C7;
  --text-low: #63718A;
  --divider: rgba(255,255,255,0.08);
  --border-glass: rgba(255,255,255,0.10);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --btn-radius: 12px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.25);
  --shadow-hover: 0 16px 48px rgba(0,0,0,0.35), 0 0 24px rgba(30,99,230,0.08);
  --btn-shadow: 0 0 20px var(--primary-glow), 0 4px 12px rgba(0,0,0,0.3);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-base);
  color: var(--text-high);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  padding-top: 76px;
  font-feature-settings: "tnum";
}

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

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: #7BE8FF;
}

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

::selection {
  background: rgba(45, 225, 252, 0.3);
  color: #FFFFFF;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #0A1220;
}

::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.15);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.25);
}

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

.grid-container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media screen and (min-width: 40em) {
  .grid-container {
    padding-left: 24px;
    padding-right: 24px;
  }
}

/* ===== Header & Nav ===== */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-nav);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.main-header.scrolled {
  background: rgba(7, 13, 26, 0.92);
  border-bottom-color: var(--divider);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 76px;
  position: relative;
  transition: height 0.25s var(--ease);
}

.main-header.scrolled .header-inner {
  height: 62px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text-high) !important;
}

.brand:hover {
  color: var(--text-high) !important;
}

.brand-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #FFFFFF;
  font-size: 17px;
  box-shadow: 0 0 16px var(--primary-glow);
  transition: box-shadow 0.25s var(--ease);
}

.brand:hover .brand-icon {
  box-shadow: 0 0 24px var(--primary-glow), 0 0 40px rgba(45,225,252,0.15);
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex: 1;
  margin: 0 12px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-mid);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

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

.nav-link.active {
  color: var(--accent-cyan);
  background: rgba(45,225,252,0.08);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 3px;
  height: 2px;
  border-radius: 999px;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px rgba(45,225,252,0.6);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  position: relative;
  z-index: 1002;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  transition: background 0.2s var(--ease);
}

.nav-toggle:hover {
  background: rgba(255,255,255,0.1);
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text-high);
  border-radius: 999px;
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--btn-radius);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease), box-shadow 0.2s var(--ease),
    transform 0.2s var(--ease);
}

.btn:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--primary);
  color: #FFFFFF !important;
  box-shadow: var(--btn-shadow);
}

.btn-primary:hover {
  background: var(--primary-hover);
  color: #FFFFFF !important;
  box-shadow: 0 0 28px var(--primary-glow), 0 8px 20px rgba(0,0,0,0.35);
  transform: translateY(-2px);
}

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

.btn-ghost {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.12);
  color: var(--text-high) !important;
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(45,225,252,0.5);
  color: #FFFFFF !important;
}

.btn-gold {
  background: var(--accent-gold);
  color: #1A1206 !important;
  box-shadow: 0 0 20px rgba(245,185,66,0.35), 0 4px 12px rgba(0,0,0,0.3);
}

.btn-gold:hover {
  background: #FFCB5E;
  color: #1A1206 !important;
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(245,185,66,0.45), 0 8px 20px rgba(0,0,0,0.3);
}

.btn-sm {
  padding: 9px 20px;
  font-size: 14px;
  border-radius: 10px;
}

.btn-lg {
  padding: 15px 38px;
  font-size: 16px;
}

/* ===== Article Main ===== */
.article-main {
  padding-top: 48px;
  min-height: 65vh;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 24px 0 8px;
  font-size: 14px;
  color: var(--text-low);
}

.breadcrumb a {
  color: var(--text-mid);
  transition: color 0.2s var(--ease);
}

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

.breadcrumb .sep {
  color: var(--text-low);
  opacity: 0.5;
}

.breadcrumb .current {
  color: var(--accent-cyan);
}

.article-header {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 0 36px;
  text-align: center;
}

.article-header h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text-high);
  margin-bottom: 20px;
}

.article-header::after {
  content: "";
  display: block;
  width: 64px;
  height: 3px;
  margin: 0 auto;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  box-shadow: 0 0 16px var(--primary-glow);
}

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

.article-meta .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-low);
  opacity: 0.6;
}

.article-meta .category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 14px;
  border-radius: 999px;
  background: rgba(45,225,252,0.12);
  color: #9BDCF5;
  font-size: 13px;
  font-weight: 500;
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 0 48px;
  color: var(--text-mid);
  font-size: 16.5px;
  line-height: 1.85;
}

.article-body > *:last-child {
  margin-bottom: 0;
}

.article-body p {
  margin-bottom: 24px;
}

.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4 {
  color: var(--text-high);
  padding-left: 14px;
  border-left: 3px solid var(--accent-cyan);
  border-radius: 2px;
  margin-top: 36px;
  margin-bottom: 16px;
  line-height: 1.4;
}

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

.article-body h3 {
  font-size: 20px;
  padding-left: 12px;
}

.article-body h4 {
  font-size: 18px;
  padding-left: 10px;
  border-left-color: rgba(45,225,252,0.5);
}

.article-body a {
  color: var(--accent-cyan);
  border-bottom: 1px solid rgba(45,225,252,0.3);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.article-body a:hover {
  color: #7BE8FF;
  border-bottom-color: rgba(45,225,252,0.7);
}

.article-body blockquote {
  background: var(--bg-elevated);
  border: 1px solid var(--border-glass);
  border-left: 3px solid var(--accent-cyan);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 28px 0;
  color: var(--text-mid);
  font-style: normal;
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
  margin: 28px 0;
  background: rgba(255,255,255,0.04);
}

.article-body ul,
.article-body ol {
  margin: 16px 0 24px;
  padding-left: 24px;
}

.article-body ul {
  list-style: none;
}

.article-body ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
}

.article-body ul li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 2px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 6px rgba(45,225,252,0.5);
}

.article-body ol {
  list-style: decimal;
}

.article-body ol li {
  margin-bottom: 10px;
  padding-left: 6px;
}

.article-body ol li::marker {
  color: var(--accent-cyan);
  font-weight: 600;
}

.article-body code {
  background: rgba(255,255,255,0.06);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 14px;
  color: var(--accent-cyan);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.article-body pre {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 20px;
  margin: 24px 0;
  overflow-x: auto;
}

.article-body pre code {
  background: transparent;
  padding: 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
  background: var(--bg-elevated);
  border-radius: 12px;
  overflow: hidden;
}

.article-body th,
.article-body td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--divider);
  text-align: left;
}

.article-body th {
  background: rgba(255,255,255,0.06);
  font-weight: 600;
  color: var(--text-high);
}

.article-body tr:last-child td {
  border-bottom: none;
}

/* ===== Tags ===== */
.tag-list {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 0 56px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(45,225,252,0.12);
  color: #9BDCF5;
  font-size: 13px;
  font-weight: 500;
}

.tag-gold {
  background: rgba(245,185,66,0.14);
  color: var(--accent-gold);
}

/* ===== Related ===== */
.related-section {
  border-top: 1px solid var(--divider);
  padding: 64px 0 72px;
}

.related-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.related-header h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.related-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-mid);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s var(--ease), gap 0.2s var(--ease);
}

.related-more:hover {
  color: var(--accent-cyan);
  gap: 12px;
}

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

.related-card {
  display: block;
  background: var(--bg-elevated);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
  color: var(--text-high);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease),
    border-color 0.22s var(--ease);
}

.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(45,225,252,0.25);
  color: var(--text-high);
}

.related-card:hover .related-card-title {
  color: var(--accent-cyan);
}

.related-img {
  position: relative;
  overflow: hidden;
  background: rgba(255,255,255,0.04);
}

.related-img img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  transition: transform 0.3s var(--ease);
}

.related-card:hover .related-img img {
  transform: scale(1.03);
}

.category-label {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  padding: 4px 13px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: #FFFFFF;
  background: rgba(30,99,230,0.88);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.category-label.gold {
  background: rgba(245,185,66,0.9);
  color: #1A1206;
}

.category-label.cyan {
  background: rgba(45,225,252,0.88);
  color: #06202A;
}

.related-card-body {
  padding: 18px 20px 22px;
}

.related-card-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text-high);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s var(--ease);
}

.btn-center {
  text-align: center;
  margin-top: 44px;
}

/* ===== Missing ===== */
.article-missing {
  max-width: 560px;
  margin: 90px auto 100px;
  padding: 56px 32px;
  text-align: center;
  background: var(--bg-elevated);
  border: 1px dashed var(--border-glass);
  border-radius: var(--radius-lg);
}

.article-missing i {
  display: inline-block;
  font-size: 44px;
  color: var(--text-low);
  margin-bottom: 20px;
}

.article-missing h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--text-high);
}

/* ===== CTA ===== */
.cta-banner {
  position: relative;
  padding: 80px 0;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(6,11,22,0.88), rgba(6,11,22,0.96)),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
}

.cta-banner h2 {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
}

.cta-banner p {
  max-width: 560px;
  margin: 0 auto 32px;
  color: var(--text-mid);
  font-size: 15px;
}

/* ===== Footer ===== */
.site-footer {
  position: relative;
  background: #04070D;
  padding-top: 56px;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(45,225,252,0.5), transparent);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 44px;
}

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

.footer-desc {
  color: var(--text-low);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 16px;
  max-width: 320px;
}

.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(0,212,160,0.1);
  border: 1px solid rgba(0,212,160,0.25);
  color: var(--text-mid);
  font-size: 13px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(0,212,160,0.5);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(0,212,160,0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0,212,160,0);
  }
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-high);
  margin-bottom: 18px;
}

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

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--text-mid);
  font-size: 14px;
  transition: color 0.2s var(--ease);
}

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

.footer-contact p {
  color: var(--text-mid);
  font-size: 14px;
  margin-bottom: 12px;
}

.footer-contact i {
  width: 20px;
  color: var(--accent-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--divider);
  padding: 20px 0;
  text-align: center;
  color: var(--text-low);
  font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .article-header h1 {
    font-size: 36px;
  }
}

@media (max-width: 768px) {
  body {
    padding-top: 64px;
  }

  .header-inner,
  .main-header.scrolled .header-inner {
    height: 64px;
  }

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

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

  .nav-toggle {
    display: inline-flex;
  }

  .header-cta {
    display: none;
  }

  .main-nav {
    position: fixed;
    inset: 0;
    z-index: 1001;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin: 0;
    background: rgba(7, 13, 26, 0.96);
    -webkit-backdrop-filter: blur(28px) saturate(160%);
    backdrop-filter: blur(28px) saturate(160%);
    opacity: 0;
    visibility: hidden;
    transform: scale(0.98);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
      visibility 0.3s var(--ease);
  }

  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
  }

  .main-nav .nav-link {
    font-size: 20px;
    padding: 12px 28px;
    border-radius: 12px;
  }

  .main-nav .nav-link.active {
    background: rgba(45,225,252,0.12);
  }

  .main-nav .nav-link.active::after {
    display: none;
  }

  .article-main {
    padding-top: 32px;
  }

  .breadcrumb {
    font-size: 13px;
  }

  .article-header {
    padding-top: 24px;
    padding-bottom: 28px;
  }

  .article-header h1 {
    font-size: 30px;
  }

  .article-body {
    font-size: 16px;
    padding-bottom: 40px;
  }

  .related-section {
    padding: 48px 0 56px;
  }

  .cta-banner {
    padding: 56px 0;
  }

  .cta-banner h2 {
    font-size: 22px;
  }

  .btn-lg {
    padding: 13px 30px;
    font-size: 15px;
  }
}

@media (max-width: 640px) {
  .grid-container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .related-img img {
    height: 190px;
  }

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

  .article-header h1 {
    font-size: 27px;
  }

  .article-meta {
    font-size: 13px;
    gap: 10px;
  }

  .tag-list {
    padding-bottom: 40px;
  }
}

/* roulang page: category3 */
:root {
            --bg-base: #060B16;
            --bg-elevated: rgba(255, 255, 255, 0.04);
            --bg-nav: rgba(7, 13, 26, 0.82);
            --primary: #1E63E6;
            --primary-hover: #2B6FF0;
            --primary-active: #1552C4;
            --primary-glow: rgba(30, 99, 230, 0.45);
            --accent-cyan: #2DE1FC;
            --accent-green: #00D4A0;
            --accent-gold: #F5B942;
            --danger: #FF5D5D;
            --text-high: #F2F6FC;
            --text-mid: #A8B3C7;
            --text-low: #63718A;
            --divider: rgba(255, 255, 255, 0.08);
            --border-glass: rgba(255, 255, 255, 0.10);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.35), 0 0 24px rgba(30, 99, 230, 0.08);
            --shadow-btn: 0 0 20px var(--primary-glow), 0 4px 12px rgba(0, 0, 0, 0.3);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.22s cubic-bezier(0.22, 1, 0.36, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-base);
            color: var(--text-high);
            font-size: 16.5px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: #7DE9FC;
        }

        .grid-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: var(--bg-nav);
            backdrop-filter: blur(20px) saturate(160%);
            -webkit-backdrop-filter: blur(20px) saturate(160%);
            border-bottom: 1px solid transparent;
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(7, 13, 26, 0.92);
            border-bottom-color: var(--divider);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            transition: var(--transition);
        }

        .site-header.scrolled .header-inner {
            height: 64px;
        }

        .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;
            background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
            border-radius: 10px;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 0 16px var(--primary-glow);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-high);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            position: relative;
            color: var(--text-mid);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 18px;
            border-radius: 8px;
            transition: var(--transition);
        }

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

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--accent-cyan);
        }

        .nav-cta {
            margin-left: 8px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            border-radius: 10px;
            cursor: pointer;
            padding: 10px;
            transition: var(--transition);
        }

        .nav-toggle span {
            display: block;
            height: 2px;
            background: var(--text-high);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            border-color: rgba(45, 225, 252, 0.4);
        }

        /* ===== 移动端抽屉 ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 99;
            background: rgba(6, 11, 22, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 90px 24px 40px;
            flex-direction: column;
            overflow-y: auto;
        }

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

        .mobile-drawer .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-drawer .drawer-nav a {
            font-size: 20px;
            font-weight: 500;
            color: var(--text-high);
            padding: 14px 12px;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }

        .mobile-drawer .drawer-nav a:hover {
            border-left-color: var(--accent-cyan);
            background: rgba(255, 255, 255, 0.04);
        }

        .mobile-drawer .drawer-nav a.active {
            border-left-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .mobile-drawer .drawer-cta {
            margin-top: 36px;
            text-align: center;
        }

        .drawer-close {
            position: absolute;
            top: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            border-radius: 50%;
            color: var(--text-high);
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
        }

        .drawer-close:hover {
            border-color: rgba(45, 225, 252, 0.4);
            color: var(--accent-cyan);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 12px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            line-height: 1.4;
            text-align: center;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 0 28px rgba(30, 99, 230, 0.6), 0 6px 16px rgba(0, 0, 0, 0.35);
            transform: translateY(-2px);
        }

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

        .btn-gold {
            background: var(--accent-gold);
            color: #1A1206;
            box-shadow: 0 0 20px rgba(245, 185, 66, 0.35), 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .btn-gold:hover {
            background: #FFCC66;
            color: #1A1206;
            box-shadow: 0 0 28px rgba(245, 185, 66, 0.5), 0 6px 16px rgba(0, 0, 0, 0.35);
            transform: translateY(-2px);
        }

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

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
            border-radius: 10px;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-low);
            margin-bottom: 10px;
        }

        .breadcrumb a {
            color: var(--text-mid);
        }

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

        .breadcrumb i {
            font-size: 11px;
            color: var(--text-low);
        }

        .breadcrumb span {
            color: var(--text-mid);
        }

        /* ===== 频道横幅 ===== */
        .channel-banner {
            position: relative;
            padding: 150px 0 56px;
            background: linear-gradient(rgba(6, 11, 22, 0.88), rgba(6, 11, 22, 0.94)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--divider);
        }

        .banner-inner {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 40px;
        }

        .banner-left h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-high);
            margin: 0;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .banner-left .banner-sub {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: #9BDCF5;
            background: rgba(45, 225, 252, 0.12);
            padding: 5px 16px;
            border-radius: 999px;
            margin-top: 14px;
        }

        .banner-right {
            max-width: 440px;
            color: var(--text-mid);
            font-size: 15.5px;
            line-height: 1.85;
            border-left: 2px solid rgba(45, 225, 252, 0.3);
            padding-left: 22px;
        }

        .banner-right p {
            margin: 0;
        }

        /* ===== 两栏内容 ===== */
        .content-wrap {
            padding: 60px 0 72px;
        }

        .content-main .section-block {
            margin-bottom: 44px;
        }

        .content-main .section-block:last-child {
            margin-bottom: 0;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 12px;
            line-height: 1.3;
        }

        .section-title::before {
            content: "";
            width: 4px;
            height: 22px;
            background: linear-gradient(180deg, var(--accent-cyan), var(--primary));
            border-radius: 2px;
            flex-shrink: 0;
        }

        .section-desc {
            color: var(--text-mid);
            font-size: 15px;
            margin-bottom: 22px;
            line-height: 1.75;
        }

        /* ===== 栏目概览 ===== */
        .column-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .cover-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .cover-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(45, 225, 252, 0.25);
        }

        .cover-card .card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            flex-shrink: 0;
        }

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

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

        .cover-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
        }

        .card-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: #9BDCF5;
            background: rgba(45, 225, 252, 0.12);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
            line-height: 1.5;
        }

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

        .cover-card p {
            font-size: 14.5px;
            color: var(--text-mid);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 场景 ===== */
        .scene-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .scene-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            transition: var(--transition);
        }

        .scene-item:hover {
            border-color: rgba(45, 225, 252, 0.25);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .scene-item i {
            font-size: 22px;
            color: var(--accent-cyan);
            margin-bottom: 12px;
            display: block;
        }

        .scene-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-high);
            margin: 0 0 6px;
            line-height: 1.4;
        }

        .scene-item p {
            font-size: 13.5px;
            color: var(--text-mid);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 流程 ===== */
        .steps {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .step-item {
            flex: 1;
            min-width: 150px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            transition: var(--transition);
        }

        .step-item:hover {
            border-color: rgba(45, 225, 252, 0.25);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .step-num {
            width: 34px;
            height: 34px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(30, 99, 230, 0.2);
            color: var(--accent-cyan);
            font-size: 14px;
            font-weight: 700;
            border-radius: 50%;
            margin-bottom: 10px;
            font-feature-settings: "tnum";
        }

        .step-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-high);
            margin: 0 0 4px;
            line-height: 1.4;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-mid);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.active {
            border-color: rgba(45, 225, 252, 0.3);
            box-shadow: var(--shadow-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15.5px;
            font-weight: 500;
            color: var(--text-high);
            line-height: 1.5;
            user-select: none;
        }

        .faq-question::before {
            content: "Q";
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-cyan);
            background: rgba(45, 225, 252, 0.1);
            width: 26px;
            height: 26px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .faq-question .faq-icon {
            font-size: 12px;
            color: var(--text-low);
            transition: transform 0.22s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }

        .faq-answer {
            display: none;
            padding: 14px 20px 18px 50px;
            font-size: 14.5px;
            color: var(--text-mid);
            line-height: 1.75;
            border-top: 1px solid var(--divider);
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== 侧栏 ===== */
        .content-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .side-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            box-shadow: var(--shadow-card);
        }

        .side-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--divider);
            line-height: 1.4;
        }

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

        .hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 13px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .hot-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .hot-list .hot-num {
            font-size: 16px;
            font-weight: 700;
            color: var(--accent-cyan);
            font-feature-settings: "tnum";
            min-width: 24px;
            opacity: 0.75;
            line-height: 1.5;
        }

        .hot-list a {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.55;
            transition: var(--transition);
        }

        .hot-list a:hover {
            color: var(--accent-cyan);
        }

        .side-cta {
            background: linear-gradient(135deg, rgba(245, 185, 66, 0.1), rgba(30, 99, 230, 0.08));
            border: 1px solid rgba(245, 185, 66, 0.25);
            border-radius: var(--radius-md);
            padding: 30px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .side-cta .cta-icon {
            width: 46px;
            height: 46px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(245, 185, 66, 0.15);
            color: var(--accent-gold);
            font-size: 20px;
            border-radius: 14px;
            margin-bottom: 16px;
        }

        .side-cta h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-high);
            margin: 0 0 8px;
            line-height: 1.4;
            border: none;
            padding: 0;
        }

        .side-cta p {
            font-size: 14px;
            color: var(--text-mid);
            margin-bottom: 20px;
            line-height: 1.7;
        }

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

        /* ===== 底部CTA ===== */
        .bottom-cta {
            padding: 64px 0;
            background: linear-gradient(180deg, rgba(30, 99, 230, 0.08), transparent), var(--bg-base);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }

        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-mid);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #04070D;
            border-top: 1px solid rgba(45, 225, 252, 0.15);
            padding: 56px 0 24px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.7;
            margin-bottom: 14px;
            max-width: 280px;
        }

        .footer-status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-green);
            background: rgba(0, 212, 160, 0.1);
            padding: 5px 14px;
            border-radius: 999px;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 8px var(--accent-green);
            animation: pulse 1.8s infinite;
        }

        @keyframes pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

        .footer-contact p {
            font-size: 14px;
            color: var(--text-mid);
            margin-bottom: 10px;
            line-height: 1.6;
        }

        .footer-contact i {
            width: 20px;
            color: var(--accent-cyan);
            margin-right: 4px;
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-low);
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .banner-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }

            .banner-right {
                max-width: none;
                width: 100%;
            }

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

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

        @media (max-width: 768px) {
            .header-inner {
                height: 68px;
            }

            .site-header.scrolled .header-inner {
                height: 58px;
            }

            .main-nav,
            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .content-wrap {
                padding: 40px 0 52px;
            }

            .column-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .steps {
                flex-direction: column;
                gap: 12px;
            }

            .step-item {
                min-width: 0;
            }

            .banner-left h1 {
                font-size: 28px;
            }

            .banner-right {
                font-size: 14.5px;
            }

            .section-title {
                font-size: 21px;
            }

            .cta-inner h2 {
                font-size: 24px;
            }

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

            .footer-desc {
                max-width: none;
            }
        }

        @media (max-width: 640px) {
            body {
                font-size: 16px;
            }

            .grid-container {
                padding: 0 16px;
            }

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

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

            .channel-banner {
                padding: 120px 0 40px;
            }

            .banner-left h1 {
                font-size: 24px;
            }

            .banner-left .banner-sub {
                font-size: 12px;
                padding: 4px 12px;
            }

            .content-wrap {
                padding: 32px 0 44px;
            }

            .section-block {
                margin-bottom: 36px;
            }

            .section-title {
                font-size: 19px;
                gap: 10px;
            }

            .scene-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .cover-card .card-body {
                padding: 16px 18px 20px;
            }

            .cover-card h3 {
                font-size: 17px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14.5px;
            }

            .faq-answer {
                padding: 12px 16px 16px 44px;
                font-size: 14px;
            }

            .side-card {
                padding: 20px 18px;
            }

            .side-cta {
                padding: 24px 18px;
            }

            .cta-inner h2 {
                font-size: 22px;
            }

            .btn {
                padding: 10px 22px;
                font-size: 14px;
            }

            .footer-bottom p {
                font-size: 12px;
            }
        }