/* roulang page: index */
:root {
            --bg-base: #060913;
            --bg-surface: #0c1222;
            --bg-glass: rgba(16, 24, 44, 0.75);
            --border-glass: rgba(0, 210, 255, 0.18);
            --border-hover: rgba(0, 210, 255, 0.5);
            --primary: #00d2ff;
            --primary-glow: rgba(0, 210, 255, 0.45);
            --secondary: #3a7bd5;
            --text-main: #f0f4fc;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --card-radius: 16px;
            --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.65;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition-smooth);
        }
        a:hover, a:focus {
            color: #70e4ff;
            text-decoration: none;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(6, 9, 19, 0.88);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 14px 0;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .site-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #ffffff;
            display: flex;
            align-items: center;
            letter-spacing: 0.5px;
        }
        .site-logo i {
            color: var(--primary);
            margin-right: 8px;
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0;
            list-style: none;
        }
        .main-nav a {
            color: var(--text-muted);
            font-weight: 500;
            font-size: 0.98rem;
            padding: 6px 10px;
            border-radius: 6px;
        }
        .main-nav a:hover, .main-nav a.active {
            color: #ffffff;
            background: rgba(0, 210, 255, 0.1);
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            background: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
            color: #ffffff !important;
            font-weight: 600;
            border-radius: 30px;
            box-shadow: 0 0 16px var(--primary-glow);
            transition: var(--transition-smooth);
            border: 1px solid rgba(255, 255, 255, 0.2);
            cursor: pointer;
        }
        .btn-glow:hover {
            box-shadow: 0 0 25px rgba(0, 210, 255, 0.7);
            transform: translateY(-2px);
            color: #ffffff;
        }

        .section-padding {
            padding: 85px 0;
            position: relative;
        }
        .section-alt {
            background-color: var(--bg-surface);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-badge {
            display: inline-block;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--primary);
            background: rgba(0, 210, 255, 0.12);
            border: 1px solid rgba(0, 210, 255, 0.25);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
        }
        .section-title {
            color: #ffffff;
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
            line-height: 1.7;
        }

        /* Glass Card */
        .glass-panel {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--card-radius);
            padding: 32px 28px;
            transition: var(--transition-smooth);
            backdrop-filter: blur(10px);
            position: relative;
            height: 100%;
        }
        .glass-panel:hover {
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(0, 210, 255, 0.12);
        }

        /* Hero */
        .hero-section {
            padding: 100px 0 80px;
            background: radial-gradient(circle at 50% 15%, rgba(0, 210, 255, 0.14) 0%, rgba(6, 9, 19, 1) 75%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto 50px;
        }
        .hero-title {
            font-size: 2.7rem;
            font-weight: 800;
            line-height: 1.25;
            color: #ffffff;
            margin-bottom: 24px;
        }
        .hero-title span {
            background: linear-gradient(135deg, #00d2ff 0%, #a5b4fc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-summary {
            font-size: 1.12rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .hero-demo-console {
            background: rgba(11, 19, 38, 0.9);
            border: 1px solid rgba(0, 210, 255, 0.3);
            border-radius: 14px;
            padding: 24px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            justify-content: space-between;
        }
        .console-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .console-item i {
            font-size: 1.8rem;
            color: var(--primary);
        }
        .console-text strong {
            display: block;
            color: #ffffff;
            font-size: 1.05rem;
        }
        .console-text span {
            font-size: 0.85rem;
            color: var(--text-dim);
        }

        /* Metrics */
        .metric-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }

        /* Comparison Table */
        .table-responsive {
            overflow-x: auto;
        }
        .custom-compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin-top: 15px;
            background: var(--bg-glass);
            border-radius: 12px;
            border: 1px solid var(--border-glass);
            overflow: hidden;
        }
        .custom-compare-table th, .custom-compare-table td {
            padding: 18px 22px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
        }
        .custom-compare-table th {
            background: rgba(0, 210, 255, 0.08);
            color: #ffffff;
            font-weight: 600;
            font-size: 1.05rem;
        }
        .custom-compare-table tr:last-child td {
            border-bottom: none;
        }
        .custom-compare-table td.highlight {
            color: var(--primary);
            font-weight: 600;
        }

        /* Timeline / Milestones */
        .milestone-track {
            position: relative;
            padding-left: 28px;
            border-left: 2px dashed rgba(0, 210, 255, 0.3);
            margin: 20px 0;
        }
        .milestone-item {
            position: relative;
            margin-bottom: 35px;
        }
        .milestone-item:last-child {
            margin-bottom: 0;
        }
        .milestone-dot {
            position: absolute;
            left: -35px;
            top: 4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px var(--primary);
        }
        .milestone-date {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
        }
        .milestone-title {
            font-size: 1.15rem;
            color: #ffffff;
            margin: 4px 0 8px;
            font-weight: 600;
        }

        /* News Cards */
        .news-card-date {
            font-size: 0.82rem;
            color: var(--text-dim);
            margin-bottom: 8px;
            display: block;
        }
        .news-card-title {
            font-size: 1.18rem;
            color: #ffffff;
            margin-bottom: 10px;
            font-weight: 600;
            line-height: 1.4;
        }

        /* Plan Cards */
        .plan-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--card-radius);
            padding: 36px 30px;
            position: relative;
            transition: var(--transition-smooth);
        }
        .plan-card.featured {
            border-color: var(--primary);
            box-shadow: 0 0 30px rgba(0, 210, 255, 0.2);
            background: linear-gradient(180deg, rgba(16, 28, 56, 0.85) 0%, rgba(10, 16, 32, 0.85) 100%);
        }
        .plan-card.featured::before {
            content: "推荐配置";
            position: absolute;
            top: -12px;
            right: 24px;
            background: var(--primary);
            color: #060913;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 2px 12px;
            border-radius: 12px;
        }
        .plan-price {
            font-size: 2.2rem;
            color: #ffffff;
            font-weight: 800;
            margin: 16px 0;
        }
        .plan-price span {
            font-size: 0.9rem;
            color: var(--text-dim);
            font-weight: 400;
        }
        .plan-features {
            list-style: none;
            margin: 20px 0 30px;
            padding: 0;
        }
        .plan-features li {
            padding: 8px 0;
            color: var(--text-muted);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .plan-features li i {
            color: var(--primary);
        }

        /* Lead Form */
        .form-glass {
            background: var(--bg-surface);
            border: 1px solid var(--border-glass);
            border-radius: 20px;
            padding: 40px;
            max-width: 680px;
            margin: 0 auto;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
        }
        .form-control {
            background: rgba(6, 9, 19, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 8px;
            color: #ffffff;
            padding: 12px 16px;
            width: 100%;
            margin-bottom: 20px;
            outline: none;
            transition: var(--transition-smooth);
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 10px var(--primary-glow);
        }

        /* Accordion / FAQ */
        .faq-item {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: 10px;
            margin-bottom: 14px;
            padding: 20px;
        }
        .faq-question {
            color: #ffffff;
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .faq-answer {
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: #04060c;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 60px 0 30px;
            color: var(--text-dim);
            font-size: 0.92rem;
        }
        .footer-title {
            color: #ffffff;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            margin-top: 45px;
            padding-top: 25px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 15px;
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .main-nav {
                display: none;
            }
            .hero-demo-console {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
        --bg-base: #060913;
        --bg-surface: #0c1222;
        --bg-glass: rgba(16, 24, 44, 0.75);
        --border-glass: rgba(0, 210, 255, 0.18);
        --border-hover: rgba(0, 210, 255, 0.5);
        --primary: #00d2ff;
        --primary-glow: rgba(0, 210, 255, 0.45);
        --secondary: #3a7bd5;
        --gold-main: #ffd700;
        --gold-glow: rgba(255, 215, 0, 0.4);
        --text-main: #f0f4fc;
        --text-muted: #94a3b8;
        --text-dim: #64748b;
        --card-radius: 16px;
        --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    body {
        background-color: var(--bg-base);
        color: var(--text-main);
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        line-height: 1.65;
        overflow-x: hidden;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: var(--transition-smooth);
    }
    a:hover, a:focus {
        color: #70e4ff;
        text-decoration: none;
    }
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(6, 9, 19, 0.88);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        padding: 14px 0;
    }
    .nav-wrapper {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .site-logo {
        font-size: 1.5rem;
        font-weight: 800;
        color: #ffffff;
        display: flex;
        align-items: center;
        letter-spacing: 0.5px;
    }
    .site-logo i {
        color: var(--primary);
        margin-right: 8px;
        filter: drop-shadow(0 0 8px var(--primary-glow));
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 28px;
        margin: 0;
        list-style: none;
    }
    .main-nav a {
        color: var(--text-muted);
        font-weight: 500;
        font-size: 0.98rem;
        padding: 6px 10px;
        border-radius: 6px;
    }
    .main-nav a:hover, .main-nav a.active {
        color: #ffffff;
        background: rgba(0, 210, 255, 0.1);
    }
    .btn-glow {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 10px 24px;
        background: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
        color: #ffffff !important;
        font-weight: 600;
        border-radius: 30px;
        box-shadow: 0 0 16px var(--primary-glow);
        transition: var(--transition-smooth);
        border: 1px solid rgba(255, 255, 255, 0.2);
        cursor: pointer;
    }
    .btn-glow:hover {
        box-shadow: 0 0 25px rgba(0, 210, 255, 0.7);
        transform: translateY(-2px);
        color: #ffffff;
    }
    .btn-gold {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 10px 24px;
        background: linear-gradient(135deg, #ffd700 0%, #ff9900 100%);
        color: #060913 !important;
        font-weight: 700;
        border-radius: 30px;
        box-shadow: 0 0 18px var(--gold-glow);
        transition: var(--transition-smooth);
        border: 1px solid rgba(255, 255, 255, 0.4);
        cursor: pointer;
    }
    .btn-gold:hover {
        box-shadow: 0 0 28px rgba(255, 215, 0, 0.8);
        transform: translateY(-2px);
    }
    .section-padding {
        padding: 85px 0;
        position: relative;
    }
    .section-alt {
        background-color: var(--bg-surface);
        border-top: 1px solid rgba(255, 255, 255, 0.04);
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
        text-align: center;
        margin-bottom: 50px;
        max-width: 820px;
        margin-left: auto;
        margin-right: auto;
    }
    .section-badge {
        display: inline-block;
        font-size: 0.8rem;
        text-transform: uppercase;
        letter-spacing: 1.5px;
        color: var(--primary);
        background: rgba(0, 210, 255, 0.12);
        border: 1px solid rgba(0, 210, 255, 0.25);
        padding: 4px 14px;
        border-radius: 20px;
        margin-bottom: 14px;
    }
    .section-title {
        color: #ffffff;
        font-size: 2rem;
        font-weight: 700;
        margin-bottom: 16px;
    }
    .section-desc {
        color: var(--text-muted);
        font-size: 1.05rem;
        line-height: 1.7;
    }
    .glass-panel {
        background: var(--bg-glass);
        border: 1px solid var(--border-glass);
        border-radius: var(--card-radius);
        padding: 32px 28px;
        transition: var(--transition-smooth);
        backdrop-filter: blur(10px);
        position: relative;
        height: 100%;
    }
    .glass-panel:hover {
        border-color: var(--border-hover);
        box-shadow: 0 10px 30px rgba(0, 210, 255, 0.12);
    }
    .hero-vip {
        padding: 90px 0 70px;
        background: radial-gradient(circle at 50% 20%, rgba(255, 215, 0, 0.08) 0%, rgba(0, 210, 255, 0.08) 35%, rgba(6, 9, 19, 1) 80%);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .tier-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: linear-gradient(90deg, rgba(255, 215, 0, 0.2) 0%, rgba(255, 153, 0, 0.2) 100%);
        border: 1px solid rgba(255, 215, 0, 0.4);
        color: var(--gold-main);
        padding: 6px 18px;
        border-radius: 30px;
        font-size: 0.9rem;
        font-weight: 600;
        margin-bottom: 20px;
    }
    .tier-card {
        background: linear-gradient(180deg, rgba(16, 24, 44, 0.9) 0%, rgba(10, 15, 29, 0.9) 100%);
        border: 1px solid rgba(255, 215, 0, 0.25);
        border-radius: var(--card-radius);
        padding: 36px 28px;
        position: relative;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        transition: var(--transition-smooth);
    }
    .tier-card.featured {
        border-color: var(--gold-main);
        box-shadow: 0 0 30px rgba(255, 215, 0, 0.15);
        transform: scale(1.03);
    }
    .tier-card:hover {
        border-color: var(--gold-main);
        box-shadow: 0 12px 35px rgba(255, 215, 0, 0.25);
    }
    .tier-card-header {
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        padding-bottom: 20px;
        margin-bottom: 20px;
    }
    .tier-title {
        font-size: 1.4rem;
        color: #ffffff;
        font-weight: 700;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .tier-price {
        font-size: 2.2rem;
        font-weight: 800;
        color: var(--gold-main);
        margin: 12px 0 6px;
    }
    .tier-feature-list {
        list-style: none;
        margin: 0 0 25px 0;
        padding: 0;
    }
    .tier-feature-list li {
        color: var(--text-muted);
        margin-bottom: 12px;
        font-size: 0.95rem;
        display: flex;
        align-items: flex-start;
        gap: 10px;
    }
    .tier-feature-list li i {
        color: var(--primary);
        margin-top: 4px;
    }
    .workbench-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 24px;
    }
    .workbench-item {
        background: var(--bg-glass);
        border: 1px solid var(--border-glass);
        border-radius: 12px;
        padding: 24px;
        transition: var(--transition-smooth);
    }
    .workbench-item:hover {
        border-color: var(--primary);
        transform: translateY(-4px);
    }
    .workbench-icon {
        width: 48px;
        height: 48px;
        border-radius: 10px;
        background: rgba(0, 210, 255, 0.15);
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.4rem;
        margin-bottom: 16px;
    }
    .param-box {
        background: rgba(0, 0, 0, 0.35);
        border-radius: 8px;
        padding: 16px;
        border: 1px solid rgba(255, 255, 255, 0.05);
        margin-top: 15px;
    }
    .param-row {
        display: flex;
        justify-content: space-between;
        font-size: 0.88rem;
        margin-bottom: 8px;
    }
    .param-row:last-child {
        margin-bottom: 0;
    }
    .site-footer {
        background: #04060d;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 70px 0 25px;
        font-size: 0.92rem;
    }
    .footer-title {
        color: #ffffff;
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 20px;
    }
    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-links li {
        margin-bottom: 10px;
    }
    .footer-links a {
        color: var(--text-muted);
    }
    .footer-links a:hover {
        color: var(--primary);
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        margin-top: 50px;
        padding-top: 25px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 15px;
        color: var(--text-dim);
    }
    @media (max-width: 768px) {
        .tier-card.featured {
            transform: none;
        }
        .main-nav {
            gap: 12px;
        }
    }