/* roulang page: index */
:root {
            --bg-dark: #0B1220;
            --bg-deep: #0A0F1D;
            --glass: rgba(255, 255, 255, 0.06);
            --glass-strong: rgba(255, 255, 255, 0.10);
            --primary: #3B82F6;
            --primary-glow: rgba(59, 130, 246, 0.45);
            --accent: #F59E0B;
            --success: #10B981;
            --danger: #EF4444;
            --text-main: #F8FAFC;
            --text-sub: #94A3B8;
            --border: rgba(255, 255, 255, 0.12);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.5);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--bg-dark);
            color: var(--text-main);
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.75;
            font-variant-numeric: tabular-nums;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
            color: inherit;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 14px;
            color: var(--text-main);
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .glass-card {
            background: var(--glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }
        .glass-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(59, 130, 246, 0.35);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 12px;
            background: linear-gradient(135deg, #3B82F6, #1D4ED8);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            box-shadow: 0 0 24px rgba(59, 130, 246, 0.35);
            transition: all .3s ease;
            border: none;
        }
        .btn-primary:hover {
            box-shadow: 0 0 36px rgba(59, 130, 246, 0.55);
            transform: translateY(-2px);
            background: linear-gradient(135deg, #4C8DF9, #2563EB);
        }
        .btn-primary:active {
            transform: scale(.98);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(59, 130, 246, 0.5);
            outline-offset: 2px;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #F8FAFC;
            font-weight: 500;
            font-size: 15px;
            backdrop-filter: blur(10px);
            transition: all .3s ease;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }
        .btn-ghost:active {
            transform: scale(.98);
        }
        .btn-ghost:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.3);
            outline-offset: 2px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(59, 130, 246, 0.15);
            border: 1px solid rgba(59, 130, 246, 0.3);
            color: #93C5FD;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: .02em;
        }
        .badge-accent {
            background: rgba(245, 158, 11, 0.12);
            border-color: rgba(245, 158, 11, 0.3);
            color: #FBBF24;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .section-sub {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 560px;
        }
        .grid-bg {
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
        }
        .glow-orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            pointer-events: none;
            opacity: .5;
        }
        .text-gradient-blue {
            background: linear-gradient(120deg, #93C5FD, #60A5FA, #FBBF24);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-link {
            position: relative;
            padding: 10px 6px;
            font-size: 15px;
            font-weight: 500;
            color: #94A3B8;
            transition: color .25s ease;
        }
        .nav-link:hover {
            color: #F8FAFC;
        }
        .nav-link.active {
            color: #60A5FA;
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: #3B82F6;
            box-shadow: 0 0 12px rgba(59, 130, 246, 0.7);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 720px;
            max-width: 90vw;
            background: rgba(13, 20, 36, 0.92);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
            padding: 28px;
            opacity: 0;
            transform: translateY(8px);
            pointer-events: none;
            transition: opacity .3s ease, transform .3s ease;
            z-index: 100;
        }
        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .stat-card {
            position: relative;
            overflow: hidden;
            padding: 28px 24px;
            border-radius: 16px;
            background: var(--glass);
            backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, #3B82F6, #60A5FA, transparent);
            opacity: .7;
        }
        .stat-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(59, 130, 246, 0.4);
        }
        .news-card {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 24px;
            border-radius: 16px;
            background: var(--glass);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border);
            transition: all .3s ease;
            position: relative;
        }
        .news-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 20%;
            bottom: 20%;
            width: 2px;
            border-radius: 2px;
            background: #3B82F6;
            opacity: 0;
            transition: opacity .3s ease;
        }
        .news-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(59, 130, 246, 0.35);
            box-shadow: var(--shadow-hover);
        }
        .news-card:hover::before {
            opacity: 1;
        }
        .news-card:hover .news-arrow {
            transform: translateX(4px);
            color: #60A5FA;
        }
        .news-arrow {
            transition: transform .3s ease, color .3s ease;
            color: #94A3B8;
            font-size: 20px;
            flex-shrink: 0;
            margin-top: 4px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 14px;
            background: var(--glass);
            backdrop-filter: blur(14px);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .3s ease, box-shadow .3s ease;
        }
        .faq-item:hover {
            border-color: rgba(59, 130, 246, 0.3);
        }
        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color .3s ease;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform .3s ease, background .3s ease, border-color .3s ease;
            font-size: 14px;
        }
        .faq-item[open] summary {
            color: #60A5FA;
        }
        .faq-item[open] summary .icon {
            transform: rotate(45deg);
            background: rgba(59, 130, 246, 0.2);
            border-color: #3B82F6;
        }
        .faq-item .faq-body {
            padding: 0 24px 20px;
            color: #94A3B8;
            font-size: 15px;
            line-height: 1.7;
        }
        .input-field {
            width: 100%;
            height: 44px;
            padding: 0 14px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-main);
            font-size: 14px;
            transition: border-color .3s ease, box-shadow .3s ease;
        }
        .input-field:focus {
            outline: none;
            border-color: #3B82F6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
        }
        .input-field::placeholder {
            color: #64748B;
        }
        textarea.input-field {
            height: 100px;
            padding-top: 12px;
            resize: vertical;
        }
        .input-label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: #94A3B8;
            margin-bottom: 6px;
        }
        .footer-link {
            display: block;
            padding: 4px 0;
            font-size: 14px;
            color: #94A3B8;
            transition: color .25s ease, padding-left .25s ease;
        }
        .footer-link:hover {
            color: #F8FAFC;
            padding-left: 4px;
        }
        .backdrop-hero {
            background-image: linear-gradient(135deg, rgba(11, 18, 32, 0.82) 30%, rgba(11, 18, 32, 0.45) 70%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }
        .badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .badge-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 13px;
            color: #CBD5E1;
        }
        .table-compare {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        .table-compare th,
        .table-compare td {
            padding: 12px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            text-align: left;
        }
        .table-compare th {
            color: #94A3B8;
            font-weight: 600;
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: .04em;
        }
        .step-line {
            display: flex;
            align-items: center;
            gap: 0;
        }
        .step-item {
            flex: 1;
            text-align: center;
            padding: 24px 16px;
            position: relative;
        }
        .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 50%;
            right: -1px;
            width: 2px;
            height: 40px;
            background: linear-gradient(180deg, transparent, rgba(59, 130, 246, 0.4), transparent);
        }
        @media (max-width: 1023px) {
            .mega-panel {
                width: calc(100vw - 32px);
                left: 16px;
                right: 16px;
            }
            .section-title {
                font-size: 26px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .nav-links {
                display: none;
            }
            .mobile-menu-icon {
                display: flex;
            }
        }
        @media (min-width: 768px) {
            .mobile-menu-icon {
                display: none;
            }
        }
        .mobile-menu {
            position: fixed;
            inset: 0;
            background: rgba(11, 18, 32, 0.98);
            backdrop-filter: blur(16px);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 80px 32px 32px;
            opacity: 0;
            pointer-events: none;
            transition: opacity .3s ease;
        }
        .mobile-menu.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu a {
            font-size: 20px;
            font-weight: 600;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            color: #F8FAFC;
            transition: color .3s ease;
        }
        .mobile-menu a:hover {
            color: #60A5FA;
        }
        .mobile-menu .close-btn {
            position: absolute;
            top: 24px;
            right: 24px;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            cursor: pointer;
        }
        .compare-card {
            border-radius: 18px;
            padding: 32px;
            transition: all .3s ease;
        }
        .compare-card-traditional {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .compare-card-brand {
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(245, 158, 11, 0.06));
            border: 1px solid rgba(59, 130, 246, 0.35);
            box-shadow: 0 0 40px rgba(59, 130, 246, 0.15);
        }
        @media (max-width: 640px) {
            .compare-card {
                padding: 20px;
            }
            .hero-pad {
                padding-top: 120px;
                padding-bottom: 48px;
            }
        }
        .hero-pad {
            padding-top: 140px;
            padding-bottom: 80px;
        }
        .stat-num {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(120deg, #F8FAFC, #93C5FD);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

/* roulang page: article */
:root {
    --bg: #0B1220;
    --bg-2: #080D1A;
    --surface: rgba(255,255,255,0.06);
    --surface-2: rgba(255,255,255,0.03);
    --stroke: rgba(255,255,255,0.12);
    --primary: #3B82F6;
    --primary-glow: rgba(59,130,246,0.45);
    --accent: #F59E0B;
    --success: #10B981;
    --danger: #EF4444;
    --text: #F8FAFC;
    --text-2: #94A3B8;
    --rounded-card: 16px;
    --rounded-btn: 12px;
    --rounded-input: 8px;
    --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
    --shadow-hover: 0 12px 48px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 24px rgba(59,130,246,0.35);
    --max-w: 1280px;
    --space: 96px;
}
html {
    scroll-behavior: smooth;
}
body {
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    line-height: 1.75;
    font-size: 15px;
    font-variant-numeric: tabular-nums;
    -webkit-font-smoothing: antialiased;
}
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
img {
    max-width: 100%;
    display: block;
}
a {
    color: inherit;
    text-decoration: none;
    transition: color .2s ease;
}
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}
input, textarea, select {
    font-family: inherit;
    font-size: 14px;
    color: var(--text);
}
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}
.section {
    padding-top: var(--space);
    padding-bottom: var(--space);
}
.section-sm {
    padding-top: 64px;
    padding-bottom: 64px;
}
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.animate-in {
    animation: fadeInUp .7s ease both;
}
.grid-bg {
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 48px 48px;
}
.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
}
.gradient-line {
    background: linear-gradient(90deg, rgba(59,130,246,0.1), rgba(59,130,246,0.8), rgba(59,130,246,0.1));
    height: 1px;
    border: none;
    margin: 48px 0;
}
.nav-link {
    position: relative;
    font-size: 14px;
    font-weight: 500;
    color: #94A3B8;
    padding: 8px 4px;
    transition: color .2s ease;
}
.nav-link:hover {
    color: #fff;
}
.nav-link.active {
    color: #60A5FA;
}
.nav-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), rgba(59,130,246,0.2));
    border-radius: 2px;
    box-shadow: 0 0 12px var(--primary-glow);
}
.mega-trigger .mega-panel {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    width: 480px;
    max-width: 90vw;
    background: rgba(13, 20, 36, 0.92);
    backdrop-filter: blur(24px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all .25s ease;
    z-index: 50;
    box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}
.mega-trigger:hover .mega-panel,
.mega-trigger:focus-within .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.glass-card {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.35);
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #3B82F6, #1D4ED8);
    box-shadow: 0 0 24px rgba(59,130,246,0.35);
    transition: all .25s ease;
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 32px rgba(59,130,246,0.55);
    background: linear-gradient(135deg, #4F92FF, #2563EB);
}
.btn-primary:active {
    transform: scale(0.98);
}
.btn-primary:focus-visible {
    outline: 2px solid #60A5FA;
    outline-offset: 3px;
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    color: #E2E8F0;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.18);
    backdrop-filter: blur(12px);
    transition: all .25s ease;
    cursor: pointer;
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.14);
    border-color: rgba(255,255,255,0.3);
    color: #fff;
}
.btn-ghost:active {
    transform: scale(0.98);
}
.btn-ghost:focus-visible {
    outline: 2px solid #94A3B8;
    outline-offset: 3px;
}
.card-hover {
    transition: all .3s ease;
}
.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 48px rgba(0,0,0,0.5);
    border-color: rgba(59,130,246,0.4);
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid;
}
.badge-blue {
    background: rgba(59,130,246,0.1);
    border-color: rgba(59,130,246,0.3);
    color: #93C5FD;
}
.badge-amber {
    background: rgba(245,158,11,0.1);
    border-color: rgba(245,158,11,0.3);
    color: #FCD34D;
}
.badge-gray {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
    color: #94A3B8;
}
.footer-link {
    color: #94A3B8;
    font-size: 14px;
    transition: all .2s ease;
    display: inline-block;
    padding: 2px 0;
}
.footer-link:hover {
    color: #93C5FD;
    transform: translateX(4px);
}
.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
    font-size: 16px;
    padding: 20px 24px;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary .faq-icon {
    transition: transform .3s ease;
    color: #64748B;
}
.faq-item[open] summary .faq-icon {
    transform: rotate(45deg);
    color: #60A5FA;
}
.faq-item[open] summary {
    color: #60A5FA;
}
.faq-item {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    margin-bottom: 12px;
    transition: border-color .3s ease, background .3s ease;
}
.faq-item:hover {
    border-color: rgba(59,130,246,0.3);
}
.faq-item .faq-answer {
    padding: 0 24px 20px;
    color: #94A3B8;
    font-size: 14px;
    line-height: 1.8;
}
.form-input {
    width: 100%;
    height: 44px;
    padding: 0 14px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    color: #F8FAFC;
    font-size: 14px;
    transition: all .25s ease;
}
.form-input:focus {
    outline: none;
    border-color: rgba(59,130,246,0.7);
    box-shadow: 0 0 0 4px rgba(59,130,246,0.15);
    background: rgba(255,255,255,0.08);
}
.form-input::placeholder {
    color: #64748B;
}
textarea.form-input {
    height: 120px;
    padding-top: 12px;
    resize: vertical;
}
select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2394A3B8' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}
.article-body {
    font-size: 16px;
    line-height: 2;
    color: #CBD5E1;
}
.article-body h2 {
    font-size: 22px;
    font-weight: 700;
    color: #F8FAFC;
    margin: 40px 0 16px;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    line-height: 1.4;
}
.article-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: #F8FAFC;
    margin: 32px 0 12px;
}
.article-body p {
    margin-bottom: 24px;
}
.article-body ul, .article-body ol {
    margin: 16px 0 24px;
    padding-left: 28px;
}
.article-body ul {
    list-style: disc;
}
.article-body ol {
    list-style: decimal;
}
.article-body li {
    margin-bottom: 8px;
}
.article-body blockquote {
    margin: 24px 0;
    padding: 16px 24px;
    background: rgba(59,130,246,0.08);
    border-left: 4px solid var(--primary);
    border-radius: 0 12px 12px 0;
    color: #93C5FD;
    font-style: italic;
}
.article-body strong {
    color: #F8FAFC;
    font-weight: 600;
}
.article-body a {
    color: #60A5FA;
    text-decoration: underline;
    text-underline-offset: 4px;
}
.article-body a:hover {
    color: #93C5FD;
}
.article-body img {
    border-radius: 16px;
    margin: 24px 0;
}
.article-body code {
    background: rgba(255,255,255,0.1);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 14px;
    color: #FCD34D;
}
.section-title-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(59,130,246,0.1);
    border: 1px solid rgba(59,130,246,0.25);
    color: #93C5FD;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.section-title {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.3;
    margin-top: 16px;
    color: #F8FAFC;
    letter-spacing: -0.02em;
}
.section-sub {
    font-size: 15px;
    color: #94A3B8;
    margin-top: 12px;
    max-width: 560px;
    line-height: 1.7;
}
.timeline-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 12px var(--primary-glow);
    flex-shrink: 0;
    margin-top: 6px;
}
.data-card {
    position: relative;
    overflow: hidden;
}
.data-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0.5;
}
.article-cover {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
}
.article-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11,18,32,0.4) 0%, rgba(11,18,32,0.1) 40%, rgba(11,18,32,0.5) 100%);
    pointer-events: none;
}
.tag-chip {
    display: inline-flex;
    align-items: center;
    padding: 4px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    color: #94A3B8;
    font-size: 12px;
    transition: all .2s ease;
}
.tag-chip:hover {
    color: #fff;
    border-color: rgba(59,130,246,0.4);
    background: rgba(59,130,246,0.1);
}
.mobile-menu {
    transition: all .3s ease;
    overflow: hidden;
}
@media (max-width: 1024px) {
    :root {
        --space: 64px;
    }
    .section-title {
        font-size: 26px;
    }
}
@media (max-width: 768px) {
    :root {
        --space: 48px;
    }
    .section-title {
        font-size: 22px;
    }
}
@media (max-width: 520px) {
    .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    .btn-primary, .btn-ghost {
        padding: 12px 24px;
        font-size: 14px;
    }
}

/* roulang page: category1 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #080D1A;
            --surface-glass: rgba(255, 255, 255, 0.06);
            --surface-glass-hover: rgba(255, 255, 255, 0.1);
            --border-light: rgba(255, 255, 255, 0.12);
            --accent-blue: #3B82F6;
            --accent-blue-light: #60A5FA;
            --accent-amber: #F59E0B;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(59, 130, 246, 0.35);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            font-variant-numeric: tabular-nums;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        /* ---------- 背景网格 ---------- */
        .bg-grid {
            background-image: linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
            background-size: 40px 40px;
        }
        /* ---------- 导航 ---------- */
        .nav-link {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: #94A3B8;
            padding: 0.5rem 0.25rem;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: #fff;
        }
        .nav-link.active {
            color: #60A5FA;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: #3B82F6;
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(59, 130, 246, 0.6);
        }
        /* ---------- Mega 面板 ---------- */
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 620px;
            background: rgba(11, 18, 32, 0.96);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 1.5rem;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all 0.25s ease;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
            z-index: 100;
        }
        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        /* ---------- 移动端菜单 ---------- */
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100vh;
            background: #0B1220;
            border-left: 1px solid rgba(255, 255, 255, 0.1);
            z-index: 200;
            padding: 2rem 1.5rem;
            transition: right 0.35s ease;
            overflow-y: auto;
        }
        .mobile-menu.open {
            right: 0;
        }
        .mobile-menu-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 150;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
        }
        .mobile-menu-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        /* ---------- 按钮 ---------- */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #3B82F6, #2563EB);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 0.75rem 1.5rem;
            border-radius: 12px;
            box-shadow: 0 0 24px rgba(59, 130, 246, 0.35);
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(59, 130, 246, 0.55);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.4), 0 0 32px rgba(59, 130, 246, 0.4);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: #E2E8F0;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 0.75rem 1.5rem;
            border-radius: 12px;
            transition: all 0.3s;
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .btn-secondary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
        }
        /* ---------- 玻璃卡片 ---------- */
        .glass-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            transition: all 0.3s ease;
        }
        .glass-card:hover {
            transform: translateY(-4px);
            border-color: rgba(59, 130, 246, 0.4);
            box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5);
        }
        .glass-card.highlight {
            border-color: rgba(59, 130, 246, 0.4);
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(255, 255, 255, 0.04));
        }
        /* ---------- 步骤条 ---------- */
        .step-item {
            position: relative;
        }
        .step-item .step-dot {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(59, 130, 246, 0.15);
            border: 1px solid rgba(59, 130, 246, 0.3);
            color: #60A5FA;
            font-weight: 700;
            font-size: 1.125rem;
            margin: 0 auto 1rem;
            transition: all 0.3s;
        }
        .step-item:hover .step-dot {
            background: rgba(59, 130, 246, 0.3);
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
        }
        .step-item::after {
            content: '';
            position: absolute;
            top: 24px;
            left: calc(50% + 40px);
            width: calc(100% - 80px);
            height: 1px;
            background: linear-gradient(90deg, rgba(59, 130, 246, 0.3), rgba(255, 255, 255, 0.05));
        }
        .step-item:last-child::after {
            display: none;
        }
        /* ---------- FAQ ---------- */
        details.faq-item {
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.03);
            transition: all 0.3s;
        }
        details.faq-item[open] {
            border-color: rgba(59, 130, 246, 0.35);
            background: rgba(59, 130, 246, 0.05);
        }
        details.faq-item summary {
            cursor: pointer;
            padding: 1.25rem 1.5rem;
            font-weight: 500;
            font-size: 0.95rem;
            color: #E2E8F0;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: color 0.3s;
        }
        details.faq-item summary::-webkit-details-marker {
            display: none;
        }
        details.faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(59, 130, 246, 0.1);
            border: 1px solid rgba(59, 130, 246, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #60A5FA;
            flex-shrink: 0;
            transition: all 0.3s;
        }
        details.faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: rgba(59, 130, 246, 0.25);
        }
        details.faq-item[open] summary {
            color: #60A5FA;
        }
        details.faq-item .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: #94A3B8;
            font-size: 0.875rem;
            line-height: 1.75;
        }
        /* ---------- 页脚链接 ---------- */
        .footer-link {
            display: block;
            padding: 0.25rem 0;
            font-size: 0.875rem;
            color: #94A3B8;
            transition: color 0.3s, padding-left 0.3s;
        }
        .footer-link:hover {
            color: #60A5FA;
            padding-left: 4px;
        }
        .footer-link:focus-visible {
            outline: 2px solid rgba(59, 130, 246, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }
        /* ---------- 图片遮罩 ---------- */
        .img-overlay {
            position: relative;
            overflow: hidden;
        }
        .img-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 18, 32, 0.8), transparent 60%);
            pointer-events: none;
        }
        .img-overlay>img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .img-overlay:hover>img {
            transform: scale(1.05);
        }
        /* ---------- 焦点样式 ---------- */
        a:focus-visible {
            outline: 2px solid rgba(59, 130, 246, 0.5);
            outline-offset: 4px;
            border-radius: 4px;
        }
        /* ---------- 响应式 ---------- */
        @media (max-width: 1024px) {
            .container {
                padding: 0 1.25rem;
            }
            .mega-panel {
                width: 480px;
            }
        }
        @media (max-width: 768px) {
            body {
                font-size: 14px;
            }
            .container {
                padding: 0 1rem;
            }
            .step-item::after {
                display: none;
            }
        }
        @media (max-width: 640px) {
            .mega-panel {
                display: none;
            }
        }

/* roulang page: category2 */
:root {
            --color-dark: #0B1220;
            --color-darker: #080D1A;
            --color-surface: rgba(255, 255, 255, 0.06);
            --color-primary: #3B82F6;
            --color-primary-glow: rgba(59, 130, 246, 0.45);
            --color-accent: #F59E0B;
            --color-success: #10B981;
            --color-danger: #EF4444;
            --color-text: #F8FAFC;
            --color-text-muted: #94A3B8;
            --color-border: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(59, 130, 246, 0.35);
            --spacing-section: 88px;
            --spacing-section-mobile: 52px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--color-dark);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 15px;
            font-variant-numeric: tabular-nums;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

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

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 14px;
            color: var(--color-text);
            width: 100%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            height: 44px;
            padding: 0 14px;
            outline: none;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        input::placeholder,
        textarea::placeholder {
            color: rgba(148, 163, 184, 0.6);
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
        }

        textarea {
            height: 120px;
            padding: 12px 14px;
            resize: vertical;
        }

        ::selection {
            background: rgba(59, 130, 246, 0.4);
            color: #fff;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* 导航 */
        .nav-link {
            position: relative;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-muted);
            padding: 8px 2px;
            transition: color 0.25s;
        }

        .nav-link:hover {
            color: #ffffff;
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            box-shadow: 0 0 12px var(--color-primary-glow);
        }

        .mega-trigger {
            position: relative;
        }

        .mega-panel {
            position: absolute;
            right: 0;
            top: calc(100% + 10px);
            width: 660px;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            background: rgba(11, 18, 32, 0.96);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            padding: 24px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
            box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
            z-index: 100;
        }

        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-label {
            font-size: 12px;
            font-weight: 700;
            color: #64748B;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }

        .mega-link {
            display: block;
            font-size: 13px;
            color: #B6C2D4;
            padding: 8px 10px;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
            line-height: 1.5;
        }

        .mega-link:hover {
            background: rgba(255, 255, 255, 0.05);
            color: #ffffff;
        }

        .mega-chip {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.05);
            color: #CBD5E1;
            transition: background 0.2s, border-color 0.2s, color 0.2s;
        }

        .mega-chip:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
            color: #fff;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, #3B82F6, #2563EB);
            box-shadow: 0 0 24px rgba(59, 130, 246, 0.35);
            transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(59, 130, 246, 0.5);
            filter: brightness(1.08);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 0 16px rgba(59, 130, 246, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            color: #E2E8F0;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--color-border);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: background 0.2s, transform 0.2s, border-color 0.2s;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

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

        .btn-secondary:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        /* 玻璃卡片 */
        .glass-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
        }

        .glass-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(255, 255, 255, 0.2);
        }

        /* 标签 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-primary {
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.35);
            color: #93C5FD;
        }

        .badge-accent {
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid rgba(245, 158, 11, 0.35);
            color: #FCD34D;
        }

        .badge-success {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.35);
            color: #6EE7B7;
        }

        /* 深色表格 */
        .rules-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border-radius: 14px;
            overflow: hidden;
            border: 1px solid var(--color-border);
            font-size: 14px;
        }

        .rules-table thead {
            background: rgba(59, 130, 246, 0.08);
        }

        .rules-table th {
            text-align: left;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 13px;
            color: #93C5FD;
            border-bottom: 1px solid var(--color-border);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .rules-table td {
            padding: 15px 20px;
            color: #CBD5E1;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            line-height: 1.7;
        }

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

        .rules-table tbody tr {
            transition: background 0.2s;
        }

        .rules-table tbody tr:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.04);
            overflow: hidden;
            margin-bottom: 14px;
            transition: border-color 0.25s, background 0.25s;
        }

        .faq-item.open {
            border-color: rgba(59, 130, 246, 0.4);
            background: rgba(59, 130, 246, 0.04);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: #E2E8F0;
            text-align: left;
            transition: color 0.25s;
        }

        .faq-question:hover {
            color: #fff;
        }

        .faq-item.open .faq-question {
            color: #93C5FD;
        }

        .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            color: #94A3B8;
            transition: transform 0.3s, color 0.3s;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--color-primary);
        }

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

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.8;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 16px;
            margin-top: 0;
        }

        /* 页脚 */
        .footer-link {
            display: block;
            font-size: 14px;
            color: #64748B;
            padding: 5px 0;
            transition: color 0.2s, padding-left 0.2s;
        }

        .footer-link:hover {
            color: #CBD5E1;
            padding-left: 4px;
        }

        /* 网格背景纹理 */
        .grid-bg {
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 48px 48px;
        }

        /* 渐变光晕 */
        .glow-orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            pointer-events: none;
        }

        /* 滚动条 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #0B1220;
        }

        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }

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

        @media (max-width: 1024px) {
            .mega-panel {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: var(--spacing-section-mobile);
            }

            .rules-table {
                font-size: 13px;
            }

            .rules-table th,
            .rules-table td {
                padding: 12px 14px;
            }
        }