/* roulang page: index */
:root {
    --primary: #8b5cf6;
    --secondary: #ef4444;
    --bg-dark: #0a0a14;
    --bg-panel: #12121f;
    --bg-card: #181828;
    --text-main: #e5e7eb;
    --text-weak: #9ca3af;
    --border-color: rgba(255,255,255,0.08);
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 32px rgba(0,0,0,0.35);
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}
a {
    text-decoration: none;
    color: inherit;
}
img {
    max-width: 100%;
    display: block;
}
button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}
input, textarea {
    font-family: inherit;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}
.section-gap {
    padding: 96px 0;
}
.section-gap-sm {
    padding: 64px 0;
}
.text-gradient {
    background: linear-gradient(135deg, #a78bfa, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    padding: 14px 36px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.35);
}
.btn-primary:hover {
    background: #7c3aed;
    transform: translateY(-2px);
    box-shadow: 0 0 32px rgba(139, 92, 246, 0.55);
}
.btn-outline {
    border: 1px solid rgba(255,255,255,0.25);
    color: #fff;
    padding: 14px 32px;
    border-radius: 999px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}
.card-glow {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card-glow:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(139, 92, 246, 0.15);
}
.badge-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(139, 92, 246, 0.15);
    color: #c4b5fd;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.3px;
    border: 1px solid rgba(139, 92, 246, 0.25);
}
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -1px;
}
.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-weak);
    margin-top: 16px;
    line-height: 1.7;
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}
.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-panel);
    padding: 24px 28px;
    transition: border-color 0.3s ease;
}
.faq-item:hover {
    border-color: rgba(139, 92, 246, 0.4);
}
.nav-link {
    position: relative;
    padding: 8px 2px;
    font-weight: 500;
    transition: color 0.3s ease;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
    box-shadow: 0 0 12px var(--primary);
}
.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}
.nav-link.active {
    color: #c4b5fd;
    text-shadow: 0 0 20px rgba(139, 92, 246, 0.5);
}
.nav-cta {
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    color: #fff;
    padding: 10px 28px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}
.nav-cta:hover {
    transform: scale(1.04);
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.5);
}
.hero-background {
    position: relative;
    background: linear-gradient(rgba(10, 10, 20, 0.85), rgba(10, 10, 20, 0.92)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
}
.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 30%, rgba(139, 92, 246, 0.15), transparent 50%);
    pointer-events: none;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(139, 92, 246, 0.12);
    border: 1px solid rgba(139, 92, 246, 0.3);
    padding: 8px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(8px);
}
.hero-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 8px #22c55e;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.feature-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 40px 28px;
    transition: all 0.3s ease;
}
.feature-card:hover {
    border-color: rgba(139, 92, 246, 0.4);
    transform: translateY(-4px);
}
.feature-icon {
    width: 65px;
    height: 65px;
    border-radius: 18px;
    background: rgba(139, 92, 246, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: #a78bfa;
    margin-bottom: 24px;
    border: 1px solid rgba(139, 92, 246, 0.2);
}
.category-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    height: 320px;
    display: flex;
    align-items: flex-end;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    cursor: pointer;
}
.category-card:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 60px rgba(139, 92, 246, 0.2);
}
.category-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.category-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 10, 20, 0.9), transparent 70%);
}
.category-card-content {
    position: relative;
    z-index: 2;
    padding: 32px;
    width: 100%;
}
.data-block {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 40px 32px;
    text-align: center;
    transition: border-color 0.3s ease;
}
.data-block:hover {
    border-color: rgba(139, 92, 246, 0.4);
}
.data-number {
    font-size: 3.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #a78bfa, #f472b6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}
.news-list-item {
    display: flex;
    gap: 28px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    align-items: flex-start;
}
.news-list-item:hover {
    background: rgba(255,255,255,0.02);
    padding-left: 12px;
    padding-right: 12px;
    border-radius: 12px;
}
.news-thumb {
    width: 180px;
    height: 120px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
}
.cta-panel {
    background: linear-gradient(120deg, rgba(139, 92, 246, 0.2), rgba(168, 85, 247, 0.1)), var(--bg-panel);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 28px;
    padding: 64px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-panel::before {
    content: '';
    position: absolute;
    top: -40%;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15), transparent 60%);
    pointer-events: none;
}
.footer-link {
    color: var(--text-weak);
    transition: color 0.3s ease, padding-left 0.3s ease;
    padding: 4px 0;
}
.footer-link:hover {
    color: #c4b5fd;
    padding-left: 6px;
}
.floating-toolbar {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 50;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
@media (max-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
        margin-top: 24px;
    }
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
        margin-top: 24px;
    }
    .section-title {
        font-size: 2rem;
    }
    .cta-panel {
        padding: 48px 32px;
    }
}
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    .section-gap {
        padding: 64px 0;
    }
    .section-gap-sm {
        padding: 48px 0;
    }
    .card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .stat-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .news-list-item {
        flex-direction: column;
        gap: 14px;
        padding: 20px 0;
    }
    .news-thumb {
        width: 100%;
        height: 200px;
    }
    .section-title {
        font-size: 1.6rem;
    }
    .floating-toolbar {
        bottom: 16px;
        right: 16px;
    }
}
@media (max-width: 520px) {
    .nav-links {
        display: none;
    }
    .category-card {
        height: 240px;
    }
}

/* roulang page: category1 */
:root {
            --bg-primary: #07070d;
            --bg-panel: rgba(11, 11, 22, 0.85);
            --text-primary: #f1f0f5;
            --text-secondary: #a1a1b5;
            --line-border: rgba(255, 255, 255, 0.08);
            --primary-glow: #a855f7;
            --secondary-glow: #22d3ee;
            --radius-lg: 20px;
            --radius-md: 14px;
            --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.45);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            min-height: 100vh;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        nav-links a {
            position: relative;
        }

        .nav-link {
            color: #b9b9cf;
            font-weight: 500;
            letter-spacing: 0.3px;
            padding: 8px 2px;
            transition: color 0.25s ease;
        }

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

        .nav-link.active {
            color: #ffffff;
            text-shadow: 0 0 12px rgba(168, 85, 247, 0.9);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, #a855f7, #22d3ee);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(168, 85, 247, 0.8);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #a855f7, #d946ef);
            color: #ffffff;
            font-weight: 600;
            border-radius: 999px;
            padding: 0.65rem 1.5rem;
            box-shadow: 0 4px 24px rgba(168, 85, 247, 0.3);
            transition: transform 0.2s ease, box-shadow 0.3s ease, filter 0.2s ease;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(168, 85, 247, 0.5);
            filter: brightness(1.08);
        }

        .btn-primary:focus-visible,
        .nav-link:focus-visible,
        .footer-link:focus-visible {
            outline: 2px solid #22d3ee;
            outline-offset: 4px;
            border-radius: 6px;
        }

        .card-panel {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--line-border);
            border-radius: var(--radius-lg);
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .card-panel:hover {
            transform: translateY(-6px);
            border-color: rgba(168, 85, 247, 0.4);
            box-shadow: var(--shadow-card);
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 5px 14px;
            border-radius: 999px;
            color: #c4b5fd;
            background: rgba(139, 92, 246, 0.12);
            border: 1px solid rgba(139, 92, 246, 0.25);
        }

        .tag-cyan {
            color: #67e8f9;
            background: rgba(34, 211, 238, 0.08);
            border-color: rgba(34, 211, 238, 0.2);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background: #34d399;
            border-radius: 999px;
            display: inline-block;
            box-shadow: 0 0 8px rgba(52, 211, 153, 0.8);
            margin-right: 6px;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.025);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: 16px;
            padding: 1.25rem 1.5rem;
            transition: border-color 0.3s ease, background 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(168, 85, 247, 0.3);
            background: rgba(168, 85, 247, 0.04);
        }

        .divider-glow {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.5), rgba(34, 211, 238, 0.4), transparent);
            border: none;
        }

        .breadcrumb-link:hover {
            color: #c4b5fd;
        }

        .mobile-menu-panel {
            background: rgba(11, 11, 22, 0.98);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        @media (max-width: 1024px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hero-badge-scroll {
                overflow-x: auto;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .btn-primary {
                padding: 0.6rem 1.1rem;
                font-size: 14px;
            }
            .card-grid-single {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0b0d12;
            --bg-panel: #12151d;
            --bg-card: #1a1e28;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --accent: #8b5cf6;
            --accent-secondary: #d946ef;
            --border: rgba(255, 255, 255, 0.08);
            --radius: 16px;
            --shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all .3s ease;
        }

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

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

        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-primary);
        }

        ::-webkit-scrollbar-thumb {
            background: #2a2f3a;
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--accent);
        }

        .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 10px;
            transition: all .3s;
            position: relative;
            letter-spacing: 0.02em;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(139, 92, 246, 0.12);
        }

        .nav-link.active {
            color: #fff;
            background: rgba(139, 92, 246, 0.18);
            box-shadow: 0 0 24px rgba(139, 92, 246, 0.18);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
            box-shadow: 0 0 8px rgba(139, 92, 246, 0.6);
        }

        .footer-link {
            color: var(--text-secondary);
            transition: all .3s;
            display: inline-flex;
            align-items: center;
        }

        .footer-link:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
            color: #fff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .3s;
            box-shadow: 0 4px 24px rgba(139, 92, 246, 0.35);
            border: none;
            cursor: pointer;
            font-size: 14px;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(139, 92, 246, 0.5);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(139, 92, 246, 0.4);
        }

        .btn-outline {
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: var(--text-primary);
            padding: 12px 28px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .3s;
            background: transparent;
            cursor: pointer;
            font-size: 14px;
            font-weight: 500;
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(139, 92, 246, 0.08);
        }

        .article-body {
            font-size: 16px;
            line-height: 1.85;
            color: #cbd5e1;
            word-wrap: break-word;
        }

        .article-body p {
            margin-bottom: 1.25em;
        }

        .article-body h2 {
            font-size: 1.4em;
            font-weight: 700;
            color: #fff;
            margin: 1.6em 0 0.7em;
            padding-left: 16px;
            border-left: 3px solid var(--accent);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 1.2em;
            font-weight: 600;
            color: #fff;
            margin: 1.3em 0 0.5em;
        }

        .article-body h4 {
            font-size: 1.05em;
            font-weight: 600;
            color: #e2e8f0;
            margin: 1em 0 0.4em;
        }

        .article-body img {
            border-radius: 12px;
            margin: 1.5em 0;
            box-shadow: var(--shadow);
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5em;
            margin-bottom: 1.25em;
        }

        .article-body li {
            margin-bottom: 0.45em;
        }

        .article-body a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .article-body a:hover {
            color: var(--accent-secondary);
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent);
            background: rgba(139, 92, 246, 0.08);
            padding: 1em 1.5em;
            border-radius: 0 12px 12px 0;
            margin: 1.5em 0;
            color: #e2d8f3;
            font-style: italic;
        }

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

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

        .article-body th {
            background: rgba(139, 92, 246, 0.1);
            color: #fff;
            font-weight: 600;
        }

        .article-body code {
            background: rgba(255, 255, 255, 0.08);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.9em;
            font-family: 'SF Mono', 'Fira Code', monospace;
            color: #c4b5fd;
        }

        .card-hover {
            transition: all .35s ease;
        }

        .card-hover:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(139, 92, 246, 0.35) !important;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px 28px;
            background: var(--bg-card);
            transition: all .3s;
        }

        .faq-item:hover {
            border-color: rgba(139, 92, 246, 0.35);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
        }

        .faq-item .faq-icon {
            transition: all .3s;
        }

        .faq-item:hover .faq-icon {
            color: var(--accent);
            transform: scale(1.1);
        }

        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .line-clamp-3 {
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .breadcrumb-link {
            color: var(--text-secondary);
            font-size: 14px;
            transition: all .3s;
        }

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

        @media (max-width: 1024px) {
            .article-body {
                font-size: 15px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                gap: 8px;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }

            .nav-link {
                white-space: nowrap;
                padding: 6px 14px;
                font-size: 13px;
            }

            .nav-link.active::after {
                width: 16px;
            }

            .article-body {
                font-size: 15px;
                line-height: 1.75;
            }

            .article-body h2 {
                font-size: 1.25em;
                padding-left: 12px;
            }

            .article-body table {
                font-size: 12px;
            }

            .faq-item {
                padding: 18px 20px;
            }
        }

        @media (max-width: 520px) {
            .article-body {
                font-size: 14px;
            }

            .article-body blockquote {
                padding: 0.8em 1em;
            }

            .article-body h2 {
                font-size: 1.15em;
            }
        }

/* roulang page: category2 */
:root {
  --bg: #0a0a14;
  --panel: #111122;
  --text: #e5e7eb;
  --text-dim: #9ca3af;
  --border: rgba(255, 255, 255, 0.08);
  --primary: #8b5cf6;
  --accent: #d946ef;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --glow: 0 0 20px rgba(139, 92, 246, 0.15);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (min-width: 640px) {
  .container-custom { padding: 0 32px; }
}
@media (min-width: 1024px) {
  .container-custom { padding: 0 40px; }
}

/* 导航 */
.nav-link {
  position: relative;
  color: #9ca3af;
  font-weight: 500;
  padding: 8px 2px;
  transition: color 0.3s ease, text-shadow 0.3s ease;
  letter-spacing: 0.02em;
}
.nav-link:hover { color: #fff; text-shadow: 0 0 16px rgba(139, 92, 246, 0.5); }
.nav-link.active { color: #a78bfa; }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, #8b5cf6, #d946ef);
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.8);
}

/* 按钮 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #8b5cf6, #d946ef);
  color: #fff;
  border-radius: 12px;
  padding: 13px 30px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 24px rgba(139, 92, 246, 0.3);
  border: none;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.5);
  color: #fff;
}
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: #e5e7eb;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 12px 28px;
  font-weight: 500;
  font-size: 15px;
  transition: all 0.3s ease;
}
.btn-outline:hover {
  border-color: rgba(139, 92, 246, 0.5);
  background: rgba(139, 92, 246, 0.08);
  color: #a78bfa;
}
.btn-outline:active { transform: translateY(0); }

/* 标签 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: #a78bfa;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 999px;
  letter-spacing: 0.04em;
}

/* 卡片 */
.glass-card {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.35s ease;
}
.glass-card:hover {
  transform: translateY(-5px);
  border-color: rgba(139, 92, 246, 0.35);
  box-shadow: var(--shadow), 0 0 24px rgba(139, 92, 246, 0.07);
}

/* 板块标题 */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #a78bfa;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.section-subtitle {
  color: var(--text-dim);
  font-size: 16px;
  margin-top: 12px;
  max-width: 640px;
}
.neon-line {
  width: 48px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, #8b5cf6, #d946ef);
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.6);
  margin: 18px 0 38px;
}

/* 统计卡 */
.stat-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.6), transparent);
}
.stat-card:hover { border-color: rgba(139, 92, 246, 0.3); box-shadow: 0 8px 32px rgba(0,0,0,0.3); }

/* 步骤卡 */
.step-card {
  position: relative;
  padding: 32px 24px 28px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s ease;
}
.step-card:hover { border-color: rgba(139, 92, 246, 0.35); box-shadow: 0 8px 28px rgba(0,0,0,0.3); }
.step-num {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, #8b5cf6, #d946ef);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.4);
  margin-bottom: 18px;
}

/* FAQ */
.faq-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.faq-item:hover { border-color: rgba(139, 92, 246, 0.25); }
.faq-q {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 16px;
  color: #e5e7eb;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  user-select: none;
}
.faq-q i { transition: transform 0.3s ease; color: #a78bfa; }
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
}
.faq-item.open .faq-a { max-height: 300px; padding: 0 24px 20px; }

/* 活动列表 */
.article-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: all 0.3s ease;
}
.article-item:hover { border-color: rgba(139, 92, 246, 0.25); background: rgba(139, 92, 246, 0.03); }
.article-date {
  flex-shrink: 0;
  width: 60px;
  text-align: center;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 12px;
  padding: 10px 6px;
}
.article-date .d { font-size: 22px; font-weight: 800; color: #c4b5fd; line-height: 1.1; }
.article-date .m { font-size: 12px; color: #8b5cf6; }

/* 页脚 */
.footer-link {
  color: #9ca3af;
  font-size: 14px;
  transition: color 0.25s ease, padding-left 0.25s ease;
  display: inline-flex;
  align-items: center;
  padding: 3px 0;
}
.footer-link:hover { color: #a78bfa; padding-left: 4px; }

/* 移动菜单 */
.mobile-menu {
  transition: max-height 0.4s ease;
  overflow: hidden;
  max-height: 0;
}
.mobile-menu.open { max-height: 500px; }

/* 图片遮罩 */
.img-shade::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,20,0.85) 0%, rgba(10,10,20,0.2) 60%, transparent 100%);
}

/* 焦点可访问性 */
a:focus-visible, button:focus-visible {
  outline: 2px solid #8b5cf6;
  outline-offset: 2px;
  border-radius: 4px;
}

/* 滚动条 */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0a0a14; }
::-webkit-scrollbar-thumb { background: #2a2a3e; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #8b5cf6; }

/* Tailwind 微调 */
.bg-grid {
  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: 40px 40px;
}

/* roulang page: category3 */
:root {
            --primary: #8b5cf6;
            --accent: #d946ef;
            --panel: #12121a;
            --deep: #0a0a0f;
            --card: #17171f;
            --text-main: #e5e5e5;
            --text-weak: #9ca3af;
            --border: rgba(255, 255, 255, 0.08);
            --radius: 16px;
            --shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--deep);
            color: var(--text-main);
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            font-size: 15px;
        }

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

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

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

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

        .section-pad {
            padding: 88px 0;
        }

        @media (max-width: 768px) {
            .section-pad {
                padding: 60px 0;
            }
            .container {
                padding: 0 20px;
            }
        }

        /* 导航链接 */
        .nav-link {
            color: #a1a1aa;
            font-weight: 500;
            padding: 8px 6px;
            position: relative;
            transition: color 0.3s ease, text-shadow 0.3s ease;
            letter-spacing: 0.2px;
        }

        .nav-link:hover {
            color: #c4b5fd;
            text-shadow: 0 0 16px rgba(139, 92, 246, 0.35);
        }

        .nav-link.active {
            color: #e9d5ff;
            text-shadow: 0 0 20px rgba(139, 92, 246, 0.55);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 4px;
            right: 4px;
            bottom: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            box-shadow: 0 0 14px rgba(168, 85, 247, 0.7);
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-weight: 600;
            padding: 13px 30px;
            border-radius: 12px;
            border: none;
            cursor: pointer;
            transition: all 0.35s ease;
            box-shadow: 0 6px 24px rgba(139, 92, 246, 0.3);
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(139, 92, 246, 0.5);
        }

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

        .btn-primary:focus-visible {
            outline: 2px solid #c4b5fd;
            outline-offset: 3px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #e5e5e5;
            font-weight: 500;
            padding: 13px 30px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.02);
            cursor: pointer;
            transition: all 0.35s ease;
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
        }

        .btn-outline:hover {
            border-color: rgba(139, 92, 246, 0.65);
            color: #c4b5fd;
            background: rgba(139, 92, 246, 0.08);
        }

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

        .btn-outline:focus-visible {
            outline: 2px solid #c4b5fd;
            outline-offset: 3px;
        }

        /* 标签 / 徽章 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: rgba(139, 92, 246, 0.12);
            color: #c4b5fd;
            border: 1px solid rgba(139, 92, 246, 0.25);
        }

        .badge-accent {
            background: rgba(217, 70, 239, 0.12);
            color: #f0abfc;
            border-color: rgba(217, 70, 239, 0.3);
        }

        .badge-green {
            background: rgba(52, 211, 153, 0.1);
            color: #6ee7b7;
            border-color: rgba(52, 211, 153, 0.25);
        }

        /* 卡片 */
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.35s ease;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            border-color: rgba(139, 92, 246, 0.4);
            box-shadow: 0 18px 45px rgba(0, 0, 0, 0.55);
        }

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

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            background: rgba(139, 92, 246, 0.12);
            color: #a78bfa;
            border: 1px solid rgba(139, 92, 246, 0.2);
            margin-bottom: 20px;
            transition: all 0.35s ease;
        }

        .feature-card:hover .feature-icon {
            background: rgba(139, 92, 246, 0.25);
            color: #ddd6fe;
            transform: scale(1.05);
        }

        /* 统计卡片 */
        .stat-card {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            transition: all 0.35s ease;
        }

        .stat-card:hover {
            border-color: rgba(139, 92, 246, 0.35);
            background: rgba(139, 92, 246, 0.05);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, #c4b5fd, #f0abfc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* 流程时间线 */
        .timeline-step {
            position: relative;
            padding-left: 40px;
            padding-bottom: 36px;
        }

        .timeline-step:last-child {
            padding-bottom: 0;
        }

        .timeline-step::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 26px;
            width: 2px;
            height: calc(100% - 36px);
            background: linear-gradient(180deg, var(--primary), var(--accent));
            opacity: 0.35;
        }

        .timeline-step:last-child::before {
            display: none;
        }

        .timeline-dot {
            position: absolute;
            left: 6px;
            top: 6px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--deep);
            border: 2px solid var(--primary);
            box-shadow: 0 0 16px rgba(139, 92, 246, 0.55);
            z-index: 1;
        }

        /* FAQ */
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease;
            margin-bottom: 14px;
        }

        .faq-item:hover {
            border-color: rgba(139, 92, 246, 0.3);
        }

        .faq-item summary {
            cursor: pointer;
            padding: 20px 24px;
            font-weight: 600;
            color: #e5e5e5;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            list-style: none;
            transition: color 0.3s ease;
            font-size: 15.5px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary i {
            color: #a78bfa;
            transition: transform 0.35s ease;
            font-size: 14px;
            flex-shrink: 0;
        }

        .faq-item[open] summary i {
            transform: rotate(180deg);
        }

        .faq-item[open] summary {
            color: #c4b5fd;
        }

        .faq-body {
            padding: 0 24px 20px;
            color: #9ca3af;
            font-size: 14.5px;
            line-height: 1.8;
        }

        /* 页脚链接 */
        .footer-link {
            color: #9ca3af;
            transition: color 0.3s ease;
        }

        .footer-link:hover {
            color: #c4b5fd;
        }

        /* 安全贴士列表 */
        .tip-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: padding-left 0.3s ease;
        }

        .tip-item:hover {
            padding-left: 8px;
        }

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

        .tip-icon {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            background: rgba(139, 92, 246, 0.1);
            color: #a78bfa;
            border: 1px solid rgba(139, 92, 246, 0.18);
            margin-top: 2px;
        }

        /* 移动菜单 */
        .mobile-menu {
            animation: fadeInDown 0.3s ease;
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Hero */
        .hero-banner {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            isolation: isolate;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 15, 0.92) 0%, rgba(10, 10, 15, 0.72) 50%, rgba(139, 92, 246, 0.25) 100%);
            z-index: -1;
        }

        /* 安全内容区块背景 */
        .content-bg {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            isolation: isolate;
        }

        .content-bg::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 10, 15, 0.92);
            z-index: -1;
        }

        /* 焦点高亮 */
        .focus-ring:focus-visible {
            outline: 2px solid #a78bfa;
            outline-offset: 4px;
            border-radius: 8px;
        }

        /* 文本渐变 */
        .text-gradient {
            background: linear-gradient(135deg, #c4b5fd, #f0abfc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* 卡片网格间距 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }