/* roulang page: index */
/* ========== 设计变量与基础 Reset ========== */
        :root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.75);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-soft: rgba(6, 182, 212, 0.18);
            --border-glow: rgba(163, 230, 53, 0.45);
            --shadow-neon: 0 0 18px rgba(163, 230, 53, 0.35);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-lg: 1rem;
            --radius-md: 0.6rem;
            --radius-sm: 0.35rem;
            --gap-section: 4.5rem;
            --container-max: 1280px;
            --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button, .btn {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        /* Container */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ========== 导航 ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(7, 7, 13, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(6, 182, 212, 0.15);
            transition: background 0.25s;
        }

        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, #A3E635 10%, #06B6D4 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 0.4rem 0;
            position: relative;
            transition: color 0.25s;
        }

        .nav-link:hover, .nav-link.active {
            color: #fff;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-lime);
            border-radius: 4px;
            box-shadow: 0 0 8px var(--accent-lime);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.35);
            color: #fff;
            padding: 0.45rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: 0.2s;
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .btn-signup {
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.5rem 1.3rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.55);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Hero */
        .hero {
            padding: 10rem 0 6rem;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid rgba(6,182,212,0.2);
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7,7,13,0.7) 0%, rgba(14,14,30,0.92) 100%);
        }

        .hero-content {
            position: relative;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            background: linear-gradient(to right, #fff, #A3E635);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-text p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            margin: 1.2rem 0 1.8rem;
            max-width: 90%;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 1.8rem;
        }

        .hero-badge {
            background: rgba(6,182,212,0.12);
            border: 1px solid var(--border-soft);
            border-radius: 2rem;
            padding: 0.5rem 1.1rem;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            font-weight: 500;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--accent-lime);
            color: #07070D;
            padding: 0.8rem 2rem;
            border-radius: 2.5rem;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s;
        }

        .btn-primary:hover {
            background: #bef264;
            box-shadow: 0 0 32px rgba(163,230,53,0.7);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--accent-cyan);
            color: var(--accent-cyan);
            padding: 0.8rem 2rem;
            border-radius: 2.5rem;
            font-weight: 700;
            transition: 0.3s;
        }

        .btn-outline:hover {
            background: rgba(6,182,212,0.12);
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-visual img {
            max-width: 85%;
            filter: drop-shadow(0 0 25px rgba(6,182,212,0.5));
        }

        /* Section commons */
        .section {
            padding: var(--gap-section) 0;
        }

        .section-title {
            font-size: 2.1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: -0.3px;
        }

        .section-desc {
            color: var(--text-secondary);
            max-width: 700px;
            margin-bottom: 2.5rem;
            font-size: 1.05rem;
        }

        .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }

        /* Cards */
        .card-glass {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: all 0.3s;
        }

        .card-glass:hover {
            border-color: rgba(6,182,212,0.45);
            box-shadow: 0 0 22px rgba(6,182,212,0.25);
            transform: translateY(-3px);
        }

        .feature-icon {
            font-size: 2.2rem;
            color: var(--accent-lime);
            margin-bottom: 1rem;
        }

        .card-glass h3 {
            font-size: 1.2rem;
            margin-bottom: 0.6rem;
        }

        .card-glass p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        /* local map hero specific */
        .region-tags {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin: 1rem 0;
        }

        .region-tag {
            background: rgba(6,182,212,0.15);
            padding: 0.4rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            color: #A3E635;
            border:1px solid rgba(163,230,53,0.25);
        }

        /* progress track */
        .progress-track {
            display: flex;
            align-items: flex-start;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .progress-step {
            flex: 1;
            min-width: 160px;
        }
        .progress-number {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--accent-lime);
        }
        .progress-label {
            color: var(--text-secondary);
            margin-top: 0.3rem;
        }

        /* testimonial wall */
        .testimonial-card {
            background: rgba(255,255,255,0.03);
            border-radius: var(--radius-md);
            padding:1.5rem;
            border-left: 3px solid var(--accent-cyan);
        }

        /* cta strip */
        .cta-strip {
            background: linear-gradient(135deg, rgba(6,182,212,0.12), rgba(163,230,53,0.08));
            border-radius: 1.5rem;
            padding: 2.8rem 2rem;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        /* footer */
        .footer {
            background: #050510;
            border-top: 1px solid rgba(6,182,212,0.15);
            padding: 3rem 0 2rem;
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }

        .footer-col h4 {
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            margin-bottom: 0.45rem;
            font-size: 0.9rem;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            font-size: 0.85rem;
            border-top:1px solid rgba(255,255,255,0.05);
            margin-top:2rem;
        }

        /* FAB Cyber Option */
        .fab {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 60;
            background: rgba(7,7,13,0.8);
            backdrop-filter: blur(14px);
            border-radius: 3rem;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--accent-cyan);
            box-shadow: 0 0 22px rgba(6,182,212,0.5);
            transition: 0.3s;
            cursor: pointer;
        }
        .fab:hover {
            box-shadow: 0 0 35px rgba(163,230,53,0.7);
        }
        .fab-icon {
            font-size: 1.8rem;
        }

        @media (max-width: 1024px) {
            .grid-3, .grid-4 { grid-template-columns: repeat(2,1fr); }
            .hero-content { grid-template-columns: 1fr; }
            .hero-visual { display: none; }
        }
        @media (max-width: 768px) {
            .nav-menu { display: none; }
            .mobile-toggle { display: block; }
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: repeat(2,1fr); }
            .section { padding: 2.8rem 0; }
        }

/* roulang page: category1 */
:root {
    --bg-primary: #07070D;
    --bg-secondary: #0E0E1E;
    --bg-card: rgba(14, 14, 30, 0.75);
    --accent-cyan: #06B6D4;
    --accent-lime: #A3E635;
    --accent-pink: #F43F5E;
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --border-soft: rgba(6, 182, 212, 0.18);
    --border-glow: rgba(163, 230, 53, 0.45);
    --shadow-neon: 0 0 18px rgba(163, 230, 53, 0.35);
    --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
    --radius-lg: 1rem;
    --radius-md: 0.6rem;
    --radius-sm: 0.35rem;
    --gap-section: 4.5rem;
    --container-max: 1280px;
    --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}
body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s, opacity 0.2s;
}
button, .btn {
    cursor: pointer;
    font-family: inherit;
    border: none;
    outline: none;
}
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(7, 7, 13, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(6, 182, 212, 0.15);
    transition: background 0.25s;
}
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.nav-logo {
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: -0.3px;
    background: linear-gradient(135deg, #A3E635 10%, #06B6D4 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}
.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding: 0.4rem 0;
    position: relative;
    transition: color 0.25s;
}
.nav-link:hover, .nav-link.active {
    color: #fff;
}
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-lime);
    border-radius: 4px;
    box-shadow: 0 0 8px var(--accent-lime);
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.btn-login {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.35);
    color: #fff;
    padding: 0.45rem 1.2rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.9rem;
    transition: 0.2s;
}
.btn-login:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}
.btn-signup {
    background: linear-gradient(135deg, #A3E635, #65A30D);
    color: #07070D;
    padding: 0.5rem 1.3rem;
    border-radius: 2rem;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: var(--shadow-neon);
    transition: all 0.3s;
}
.btn-signup:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 28px rgba(163, 230, 53, 0.55);
}
.mobile-toggle {
    display: none;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.8rem;
    cursor: pointer;
}
.page-hero {
    padding: 9rem 0 4rem;
    background-image: url('/assets/images/backpic/back-3.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
    border-bottom: 1px solid rgba(6,182,212,0.2);
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(7,7,13,0.75) 0%, rgba(14,14,30,0.94) 100%);
}
.page-hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
}
.page-hero-text h1 {
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1.25;
    background: linear-gradient(to right, #fff, #A3E635);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}
.page-hero-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 1.8rem;
}
.hero-stats {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}
.stat-item {
    background: rgba(6,182,212,0.12);
    border: 1px solid rgba(6,182,212,0.25);
    border-radius: var(--radius-md);
    padding: 1rem 1.5rem;
    backdrop-filter: blur(6px);
}
.stat-item .stat-num {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-lime);
}
.stat-item .stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}
.hero-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(163, 230, 53, 0.2);
    box-shadow: 0 0 25px rgba(6,182,212,0.15);
}
.hero-visual img {
    width: 100%;
    object-fit: cover;
}
.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent-lime);
    border-radius: 4px;
    box-shadow: 0 0 8px var(--accent-lime);
}
.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.guide-card {
    background: rgba(14,14,30,0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(6,182,212,0.15);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all 0.3s;
}
.guide-card:hover {
    border-color: rgba(163, 230, 53, 0.5);
    box-shadow: 0 0 22px rgba(163, 230, 53, 0.12);
    transform: translateY(-4px);
}
.guide-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}
.guide-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.6rem;
    color: #fff;
}
.guide-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.tips-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}
.tips-list li {
    background: rgba(14,14,30,0.65);
    backdrop-filter: blur(8px);
    border-left: 3px solid var(--accent-cyan);
    border-radius: var(--radius-md);
    padding: 1.2rem 1.5rem;
    transition: all 0.25s;
}
.tips-list li:hover {
    border-left-color: var(--accent-lime);
    box-shadow: 0 0 18px rgba(163,230,53,0.08);
}
.tips-list strong {
    color: var(--accent-lime);
    display: block;
    margin-bottom: 0.35rem;
    font-size: 1.05rem;
}
.tips-list span {
    color: var(--text-secondary);
    font-size: 0.95rem;
}
.video-placeholder {
    background: rgba(14,14,30,0.7);
    border: 1px dashed rgba(6,182,212,0.3);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin: 2rem 0;
}
.video-placeholder .play-icon {
    font-size: 3rem;
    color: var(--accent-cyan);
    flex-shrink: 0;
}
.news-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}
.news-card {
    background: rgba(14,14,30,0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(6,182,212,0.12);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s;
}
.news-card:hover {
    border-color: rgba(163,230,53,0.35);
    transform: translateY(-3px);
}
.news-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}
.news-card-body {
    padding: 1.2rem;
}
.news-card-body h4 {
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
    color: #fff;
    line-height: 1.4;
}
.news-card-body p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}
.news-card-body .news-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}
.cta-section {
    background: linear-gradient(135deg, rgba(6,182,212,0.08) 0%, rgba(163,230,53,0.04) 100%);
    border: 1px solid rgba(6,182,212,0.2);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
    text-align: left;
    margin-top: var(--gap-section);
}
.cta-section h2 {
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
    color: #fff;
}
.cta-section p {
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
    font-size: 1.05rem;
}
.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}
.btn-primary {
    background: linear-gradient(135deg, #A3E635, #65A30D);
    color: #07070D;
    padding: 0.75rem 2rem;
    border-radius: 2rem;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: var(--shadow-neon);
    transition: all 0.3s;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(163, 230, 53, 0.55);
}
.btn-secondary {
    background: transparent;
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 0.75rem 2rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 1rem;
    transition: 0.3s;
}
.btn-secondary:hover {
    background: rgba(6,182,212,0.1);
    border-color: #fff;
    color: #fff;
}
.footer {
    background: rgba(10,10,18,0.95);
    border-top: 1px solid rgba(6,182,212,0.15);
    padding: 3rem 0 1.5rem;
    margin-top: var(--gap-section);
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}
.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: #fff;
    font-weight: 700;
}
.footer-col a {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    transition: color 0.2s;
}
.footer-col a:hover {
    color: var(--accent-lime);
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.07);
    padding-top: 1.2rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.fab {
    position: fixed;
    left: 1.5rem;
    bottom: 6rem;
    z-index: 90;
    width: 56px;
    height: 56px;
    background: rgba(7,7,13,0.85);
    backdrop-filter: blur(10px);
    border: 2px solid var(--accent-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--accent-lime);
    box-shadow: 0 0 20px rgba(6,182,212,0.4);
    cursor: pointer;
    transition: all 0.3s;
    animation: fabBreathe 2.5s infinite ease-in-out;
}
.fab:hover {
    transform: scale(1.12);
    border-color: var(--accent-lime);
    box-shadow: 0 0 35px rgba(163,230,53,0.55);
}
@keyframes fabBreathe {
    0%, 100% { box-shadow: 0 0 18px rgba(6,182,212,0.35); }
    50% { box-shadow: 0 0 28px rgba(6,182,212,0.65); }
}
@media (max-width: 1024px) {
    .page-hero-content {
        grid-template-columns: 1fr;
        gap: 1.8rem;
    }
    .nav-menu {
        gap: 1.2rem;
    }
}
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    .mobile-toggle {
        display: block;
    }
    .page-hero {
        padding: 7rem 0 3rem;
    }
    .page-hero-text h1 {
        font-size: 2rem;
    }
    .section-title {
        font-size: 1.6rem;
    }
    .cta-section {
        padding: 2rem 1.5rem;
    }
}

/* roulang page: article */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.75);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-soft: rgba(6, 182, 212, 0.18);
            --border-glow: rgba(163, 230, 53, 0.45);
            --shadow-neon: 0 0 18px rgba(163, 230, 53, 0.35);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-lg: 1rem;
            --radius-md: 0.6rem;
            --radius-sm: 0.35rem;
            --gap-section: 4.5rem;
            --container-max: 1280px;
            --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button, .btn {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Header */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(7, 7, 13, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(6, 182, 212, 0.15);
            transition: background 0.25s;
        }

        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, #A3E635 10%, #06B6D4 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 0.4rem 0;
            position: relative;
            transition: color 0.25s;
        }

        .nav-link:hover, .nav-link.active {
            color: #fff;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-lime);
            border-radius: 4px;
            box-shadow: 0 0 8px var(--accent-lime);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            padding: 0.45rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: 0.2s;
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .btn-signup {
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.5rem 1.3rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.55);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Article Banner */
        .article-banner {
            padding: 9rem 0 3rem;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid rgba(6, 182, 212, 0.2);
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 7, 13, 0.75) 0%, rgba(14, 14, 30, 0.94) 100%);
        }

        .article-banner-content {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            text-align: left;
        }

        .article-category-badge {
            display: inline-block;
            background: rgba(163, 230, 53, 0.15);
            color: var(--accent-lime);
            padding: 0.35rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(163, 230, 53, 0.3);
            margin-bottom: 1.2rem;
        }

        .article-banner-content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: #fff;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            align-items: center;
        }

        .article-meta span {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .article-meta i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
        }

        /* Main Content Area */
        .article-main {
            padding: var(--gap-section) 0;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 3rem;
            align-items: start;
        }

        .article-body {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            backdrop-filter: blur(10px);
        }

        .article-body h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-lime);
            margin: 2rem 0 1rem;
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin: 1.5rem 0 0.8rem;
        }

        .article-body p {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1.2rem;
            font-size: 1rem;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            border: 1px solid var(--border-soft);
        }

        .article-body ul, .article-body ol {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
        }

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

        .article-body blockquote {
            border-left: 4px solid var(--accent-cyan);
            padding-left: 1.5rem;
            margin: 1.5rem 0;
            color: var(--text-muted);
            font-style: italic;
            background: rgba(6, 182, 212, 0.05);
            padding: 1rem 1.5rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }

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

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

        .article-cta-box {
            background: linear-gradient(135deg, rgba(163, 230, 53, 0.1), rgba(6, 182, 212, 0.1));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            margin: 2rem 0;
            text-align: center;
        }

        .article-cta-box h4 {
            color: var(--accent-lime);
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
        }

        .article-cta-box p {
            color: var(--text-secondary);
            margin-bottom: 1.2rem;
        }

        .btn-cta-glow {
            display: inline-block;
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.7rem 2rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s;
        }

        .btn-cta-glow:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(163, 230, 53, 0.6);
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 90px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            backdrop-filter: blur(10px);
            margin-bottom: 1.5rem;
        }

        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 1.2rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid var(--border-soft);
        }

        .sidebar-game-card {
            display: flex;
            gap: 0.8rem;
            align-items: center;
            padding: 0.8rem;
            border-radius: var(--radius-md);
            transition: 0.25s;
            margin-bottom: 0.5rem;
        }

        .sidebar-game-card:hover {
            background: rgba(6, 182, 212, 0.08);
        }

        .sidebar-game-card img {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            border: 1px solid var(--border-soft);
        }

        .sidebar-game-card .game-info {
            flex: 1;
        }

        .sidebar-game-card .game-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: #fff;
        }

        .sidebar-game-card .game-rating {
            font-size: 0.8rem;
            color: var(--accent-lime);
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .sidebar-tag {
            display: inline-block;
            background: rgba(6, 182, 212, 0.12);
            color: var(--accent-cyan);
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            margin: 0.25rem 0.25rem;
            border: 1px solid rgba(6, 182, 212, 0.2);
            transition: 0.2s;
        }

        .sidebar-tag:hover {
            background: rgba(6, 182, 212, 0.2);
        }

        /* Related Articles */
        .related-section {
            padding: var(--gap-section) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-soft);
        }

        .related-section h2 {
            font-size: 2rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 2.5rem;
            background: linear-gradient(to right, #fff, #A3E635);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s;
            backdrop-filter: blur(10px);
        }

        .related-card:hover {
            border-color: var(--accent-cyan);
            transform: translateY(-4px);
            box-shadow: var(--shadow-cyan);
        }

        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-soft);
        }

        .related-card-content {
            padding: 1.2rem;
        }

        .related-card-content h4 {
            font-weight: 700;
            font-size: 1.05rem;
            color: #fff;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .related-card-content p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.5;
        }

        .related-card-content a {
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-block;
            margin-top: 0.8rem;
        }

        .related-card-content a:hover {
            color: var(--accent-lime);
        }

        /* Newsletter */
        .newsletter-section {
            padding: 4rem 0;
            background: linear-gradient(135deg, rgba(163, 230, 53, 0.05), rgba(6, 182, 212, 0.05));
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }

        .newsletter-box {
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
        }

        .newsletter-box h3 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-lime);
            margin-bottom: 0.8rem;
        }

        .newsletter-box p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        .newsletter-form {
            display: flex;
            gap: 0.8rem;
        }

        .newsletter-form input {
            flex: 1;
            padding: 0.8rem 1.2rem;
            border-radius: 2rem;
            border: 1px solid var(--border-soft);
            background: rgba(14, 14, 30, 0.6);
            color: #fff;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
        }

        .newsletter-form input:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.25);
        }

        .newsletter-form button {
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.8rem 2rem;
            border-radius: 2rem;
            font-weight: 700;
            box-shadow: var(--shadow-neon);
            transition: 0.3s;
            white-space: nowrap;
        }

        .newsletter-form button:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.55);
        }

        /* Footer */
        .footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-soft);
            padding: 3rem 0 1.5rem;
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 1rem;
            font-size: 1rem;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
            transition: color 0.2s;
            font-size: 0.9rem;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-soft);
            font-size: 0.85rem;
        }

        /* Not Found State */
        .not-found-state {
            text-align: center;
            padding: 4rem 0;
        }

        .not-found-state h2 {
            font-size: 2rem;
            color: var(--accent-lime);
            margin-bottom: 1rem;
        }

        .not-found-state p {
            color: var(--text-secondary);
            margin-bottom: 2rem;
        }

        .btn-back-home {
            display: inline-block;
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.7rem 2rem;
            border-radius: 2rem;
            font-weight: 700;
            box-shadow: var(--shadow-neon);
            transition: 0.3s;
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.6);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-radius: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 0 22px rgba(6, 182, 212, 0.45);
            opacity: 0.8;
        }

        .fab::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 0.85rem;
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            z-index: -1;
            opacity: 0.7;
            transition: 0.3s;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.08);
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.65);
        }

        .fab i {
            font-size: 1.8rem;
            color: var(--accent-lime);
        }

        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 10px;
            height: 10px;
            background: var(--accent-pink);
            border-radius: 50%;
            animation: pulse-badge 2s infinite;
        }

        @keyframes pulse-badge {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.2); }
        }

        /* Mobile Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                position: static;
            }

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

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

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                width: 100%;
                background: rgba(7, 7, 13, 0.97);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-soft);
            }

            .nav-menu.active {
                display: flex;
            }

            .mobile-toggle {
                display: block;
            }

            .article-banner-content h1 {
                font-size: 1.8rem;
            }

            .article-body {
                padding: 1.5rem;
            }

            .article-body h2 {
                font-size: 1.4rem;
            }

            .article-body h3 {
                font-size: 1.2rem;
            }

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

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

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

            .fab {
                width: 48px;
                height: 48px;
                left: 0.8rem;
                bottom: 5rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .article-banner-content h1 {
                font-size: 1.5rem;
            }

            .article-meta {
                font-size: 0.8rem;
                gap: 1rem;
            }

            .article-body {
                padding: 1rem;
                border-radius: var(--radius-md);
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.75);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-soft: rgba(6, 182, 212, 0.18);
            --border-glow: rgba(163, 230, 53, 0.45);
            --shadow-neon: 0 0 18px rgba(163, 230, 53, 0.35);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-lg: 1rem;
            --radius-md: 0.6rem;
            --radius-sm: 0.35rem;
            --gap-section: 4.5rem;
            --container-max: 1280px;
            --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s, opacity 0.2s;
        }
        button, .btn {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(7, 7, 13, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(6, 182, 212, 0.15);
            transition: background 0.25s;
        }
        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .nav-logo {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, #A3E635 10%, #06B6D4 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }
        .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 0.4rem 0;
            position: relative;
            transition: color 0.25s;
        }
        .nav-link:hover, .nav-link.active {
            color: #fff;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-lime);
            border-radius: 4px;
            box-shadow: 0 0 8px var(--accent-lime);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.35);
            color: #fff;
            padding: 0.45rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: 0.2s;
        }
        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }
        .btn-signup {
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.5rem 1.3rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.55);
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .page-banner {
            padding: 8rem 0 4rem;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid rgba(6,182,212,0.2);
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7,7,13,0.75) 0%, rgba(14,14,30,0.95) 100%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
        }
        .banner-content h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.3;
            background: linear-gradient(to right, #fff, #A3E635);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
        }
        .banner-content p {
            color: var(--text-secondary);
            font-size: 1.15rem;
            max-width: 700px;
        }
        .breadcrumb {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1.2rem;
        }
        .breadcrumb a:hover {
            color: var(--accent-cyan);
        }
        .section {
            padding: var(--gap-section) 0;
        }
        .section-header {
            margin-bottom: 2.5rem;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            background: linear-gradient(to right, #fff, #06B6D4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-top: 0.6rem;
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.8rem;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2rem;
            backdrop-filter: blur(10px);
            transition: all 0.3s;
        }
        .guide-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 24px rgba(6,182,212,0.2);
            transform: translateY(-3px);
        }
        .guide-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, #06B6D4, #A3E635);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
        }
        .guide-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }
        .guide-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .step-item {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
        }
        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            color: #07070D;
        }
        .step-body h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.35rem;
        }
        .step-body p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .weapon-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .weapon-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            text-align: center;
            transition: all 0.3s;
        }
        .weapon-card:hover {
            border-color: var(--accent-lime);
            box-shadow: 0 0 20px rgba(163,230,53,0.2);
        }
        .weapon-card .w-icon {
            font-size: 2.5rem;
            margin-bottom: 0.8rem;
        }
        .weapon-card h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 0.4rem;
        }
        .weapon-card p {
            color: var(--text-secondary);
            font-size: 0.85rem;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: 0.2s;
        }
        .faq-item:hover {
            border-color: rgba(6,182,212,0.4);
        }
        .faq-item h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 0.5rem;
        }
        .faq-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .cta-strip {
            background: linear-gradient(135deg, rgba(6,182,212,0.12), rgba(163,230,53,0.08));
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            text-align: left;
        }
        .cta-strip h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }
        .cta-strip p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }
        .btn-cta {
            display: inline-block;
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.7rem 2rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s;
        }
        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(163,230,53,0.55);
        }
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: 0.3s;
        }
        .post-card:hover {
            border-color: var(--accent-cyan);
            transform: translateY(-2px);
        }
        .post-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .post-card-body {
            padding: 1.2rem;
        }
        .post-card-body h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.4rem;
        }
        .post-card-body .post-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6,182,212,0.15);
            padding: 3rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 0.8rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0.4rem;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 1.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
        }
        @media (max-width: 1024px) {
            .guide-grid { grid-template-columns: 1fr; }
            .weapon-grid { grid-template-columns: repeat(2, 1fr); }
            .posts-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-menu { display: none; }
            .mobile-toggle { display: block; }
            .page-banner { padding: 7rem 0 3rem; }
            .banner-content h1 { font-size: 1.8rem; }
            .section-header h2 { font-size: 1.5rem; }
            .weapon-grid { grid-template-columns: 1fr; }
            .posts-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .step-item { flex-direction: column; gap: 0.8rem; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
            .banner-content h1 { font-size: 1.5rem; }
            .cta-strip { padding: 1.8rem 1.2rem; }
        }

/* roulang page: category3 */
/* ========== 设计变量与基础 Reset ========== */
        :root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.75);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-soft: rgba(6, 182, 212, 0.18);
            --border-glow: rgba(163, 230, 53, 0.45);
            --shadow-neon: 0 0 18px rgba(163, 230, 53, 0.35);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-lg: 1rem;
            --radius-md: 0.6rem;
            --radius-sm: 0.35rem;
            --gap-section: 4.5rem;
            --container-max: 1280px;
            --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 68px;
        }

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

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

        button, .btn {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        ul {
            list-style: none;
        }

        /* Container */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ========== 导航 ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(7, 7, 13, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(6, 182, 212, 0.15);
            transition: background 0.25s;
        }

        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1.5rem;
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, #A3E635 10%, #06B6D4 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 0.4rem 0;
            position: relative;
            transition: color 0.25s;
        }

        .nav-link:hover, .nav-link.active {
            color: #fff;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-lime);
            border-radius: 4px;
            box-shadow: 0 0 8px var(--accent-lime);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-shrink: 0;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.35);
            color: #fff;
            padding: 0.45rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: 0.2s;
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .btn-signup {
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.5rem 1.3rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.55);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: var(--gap-section) 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text-primary);
            letter-spacing: -0.2px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 2.5rem;
        }

        /* Banner */
        .page-banner {
            padding: 7rem 0 4.5rem;
            background-image: url('/assets/images/backpic/back-4.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid rgba(6,182,212,0.2);
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7,7,13,0.65) 0%, rgba(14,14,30,0.9) 100%);
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            background: linear-gradient(to right, #fff, #A3E635);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
        }

        .page-banner p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            line-height: 1.7;
        }

        /* 社区板块 */
        .community-highlights {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .highlight-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all 0.3s;
            position: relative;
        }

        .highlight-card:hover {
            border-color: rgba(163,230,53,0.5);
            box-shadow: 0 8px 30px rgba(163,230,53,0.1);
            transform: translateY(-3px);
        }

        .highlight-icon {
            font-size: 2.5rem;
            margin-bottom: 1.2rem;
            display: block;
        }

        .highlight-card h3 {
            font-size: 1.25rem;
            margin-bottom: 0.8rem;
            color: var(--accent-lime);
        }

        .highlight-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* 事件卡片 */
        .event-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .event-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s;
        }

        .event-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 8px 30px rgba(6,182,212,0.15);
            transform: translateY(-3px);
        }

        .event-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .event-body {
            padding: 1.5rem;
        }

        .event-date {
            font-size: 0.8rem;
            color: var(--accent-cyan);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.5rem;
        }

        .event-body h3 {
            font-size: 1.2rem;
            margin-bottom: 0.7rem;
            color: #fff;
        }

        .event-body p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* 排行榜 */
        .leaderboard {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2rem;
        }

        .leaderboard-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }

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

        .rank {
            font-weight: 800;
            font-size: 1.3rem;
            width: 40px;
            text-align: center;
            color: var(--accent-lime);
        }

        .player-info {
            flex: 1;
        }

        .player-name {
            font-weight: 600;
            color: #fff;
        }

        .player-score {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .player-reward {
            font-weight: 700;
            color: var(--accent-cyan);
            font-size: 0.95rem;
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(6,182,212,0.4);
        }

        .faq-question {
            padding: 1.4rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #fff;
            background: transparent;
            width: 100%;
            font-size: 1rem;
            transition: color 0.2s;
        }

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

        .faq-answer {
            padding: 0 1.4rem 1.4rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
            display: none;
        }

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

        .faq-item.active .faq-question {
            color: var(--accent-lime);
        }

        .faq-arrow {
            transition: transform 0.3s;
            font-size: 1.1rem;
        }

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

        /* 社交媒体 */
        .social-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .social-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: left;
            transition: all 0.35s;
        }

        .social-card:hover {
            border-color: var(--accent-lime);
            box-shadow: 0 0 25px rgba(163,230,53,0.15);
            transform: translateY(-4px);
        }

        .social-card h3 {
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
            color: #fff;
        }

        .social-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }

        .social-link {
            color: var(--accent-cyan);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color 0.2s;
        }

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

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(6,182,212,0.08) 0%, rgba(163,230,53,0.05) 100%);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 3.5rem 2rem;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 1.8rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.8rem 2.4rem;
            border-radius: 3rem;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s;
            display: inline-block;
            cursor: pointer;
        }

        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(163, 230, 53, 0.6);
        }

        /* 资讯列表 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.8rem;
        }

        .news-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 8px 30px rgba(6,182,212,0.15);
            transform: translateY(-3px);
        }

        .news-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .news-card-body {
            padding: 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
            color: #fff;
        }

        .news-card-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 1rem;
            flex: 1;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 页脚 */
        .footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6,182,212,0.15);
            padding: 4rem 0 2rem;
            margin-top: var(--gap-section);
            color: var(--text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2.5rem;
            margin-bottom: 3rem;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            padding: 0.3rem 0;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 2rem;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 30px;
            background: rgba(7,7,13,0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(6,182,212,0.45);
            transition: all 0.35s;
            animation: float 3s ease-in-out infinite;
        }

        .fab::before {
            content: '';
            position: absolute;
            inset: -3px;
            z-index: -1;
            border-radius: 33px;
            background: linear-gradient(135deg, #A3E635, #06B6D4, #F43F5E);
            opacity: 0.8;
            filter: blur(2px);
        }

        .fab:hover {
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(6,182,212,0.7);
            color: var(--accent-lime);
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-menu {
                gap: 1.4rem;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: fixed;
                top: 68px;
                left: 0;
                width: 100%;
                background: rgba(7,7,13,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 2rem;
                gap: 1.5rem;
                border-bottom: 1px solid var(--border-soft);
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-actions {
                gap: 0.5rem;
            }
            .btn-login, .btn-signup {
                font-size: 0.8rem;
                padding: 0.4rem 1rem;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
            .section {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .fab {
                left: 0.8rem;
                bottom: 5rem;
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.1rem;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .social-grid, .event-list, .news-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.75);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-soft: rgba(6, 182, 212, 0.18);
            --border-glow: rgba(163, 230, 53, 0.45);
            --shadow-neon: 0 0 18px rgba(163, 230, 53, 0.35);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-lg: 1rem;
            --radius-md: 0.6rem;
            --radius-sm: 0.35rem;
            --gap-section: 4.5rem;
            --container-max: 1280px;
            --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s, opacity 0.2s;
        }
        button, .btn {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        /* Header */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(7, 7, 13, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(6, 182, 212, 0.15);
            transition: background 0.25s;
        }
        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .nav-logo {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, #A3E635 10%, #06B6D4 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }
        .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 0.4rem 0;
            position: relative;
            transition: color 0.25s;
        }
        .nav-link:hover, .nav-link.active {
            color: #fff;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-lime);
            border-radius: 4px;
            box-shadow: 0 0 8px var(--accent-lime);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.35);
            color: #fff;
            padding: 0.45rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: 0.2s;
        }
        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }
        .btn-signup {
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.5rem 1.3rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.55);
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }
        /* Hero */
        .hero {
            padding: 10rem 0 6rem;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid rgba(6,182,212,0.2);
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7,7,13,0.75) 0%, rgba(14,14,30,0.94) 100%);
        }
        .hero-content {
            position: relative;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }
        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            background: linear-gradient(to right, #fff, #A3E635);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-text p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            margin: 1.2rem 0 1.8rem;
            max-width: 90%;
        }
        .hero-stats {
            display: flex;
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .hero-stat h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-lime);
        }
        .hero-stat span {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .hero-visual {
            position: relative;
        }
        .invite-progress-card {
            background: rgba(14, 14, 30, 0.8);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: 0 20px 40px rgba(0,0,0,0.5);
        }
        .invite-progress-card h3 {
            font-size: 1.4rem;
            margin-bottom: 0.8rem;
            color: #fff;
        }
        .progress-bar-wrap {
            background: rgba(255,255,255,0.08);
            border-radius: 20px;
            height: 12px;
            margin: 1rem 0;
            overflow: hidden;
        }
        .progress-fill {
            background: linear-gradient(90deg, #A3E635, #06B6D4);
            height: 100%;
            width: 65%;
            border-radius: 20px;
            transition: width 0.8s;
        }
        .progress-text {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .btn-invite {
            display: inline-block;
            background: linear-gradient(135deg, #06B6D4, #2563EB);
            color: #fff;
            font-weight: 700;
            padding: 0.7rem 2rem;
            border-radius: 2rem;
            box-shadow: var(--shadow-cyan);
            margin-top: 1.2rem;
            transition: 0.3s;
        }
        .btn-invite:hover {
            box-shadow: 0 0 30px rgba(6,182,212,0.6);
            transform: translateY(-2px);
        }
        /* Sections */
        main section {
            padding: var(--gap-section) 0;
        }
        .section-label {
            text-transform: uppercase;
            letter-spacing: 0.1em;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 0.5rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
            line-height: 1.25;
        }
        .section-subtitle {
            color: var(--text-secondary);
            margin-bottom: 2.5rem;
            font-size: 1.05rem;
            max-width: 700px;
        }
        /* Feature grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 2rem;
        }
        .feature-card {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: 0.3s;
        }
        .feature-card:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-neon);
        }
        .feature-icon {
            font-size: 2.2rem;
            margin-bottom: 1rem;
        }
        .feature-card h4 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        /* Steps */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 2rem;
            max-width: 900px;
        }
        .step-item {
            display: grid;
            grid-template-columns: 60px 1fr;
            gap: 1.5rem;
            align-items: start;
        }
        .step-badge {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.4rem;
            color: #07070D;
        }
        .step-body h4 {
            font-size: 1.2rem;
            margin-bottom: 0.35rem;
        }
        .step-body p {
            color: var(--text-secondary);
        }
        /* Events table */
        .events-table-wrap {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            overflow-x: auto;
        }
        .events-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        .events-table th {
            text-align: left;
            padding: 0.8rem;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--accent-cyan);
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .events-table td {
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            color: var(--text-secondary);
        }
        .badge-status {
            display: inline-block;
            padding: 0.25rem 0.8rem;
            border-radius: 1rem;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .badge-live {
            background: rgba(163, 230, 53, 0.2);
            color: var(--accent-lime);
        }
        .badge-soon {
            background: rgba(6,182,212,0.2);
            color: var(--accent-cyan);
        }
        /* Community */
        .community-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }
        .platform-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: left;
            transition: 0.3s;
        }
        .platform-card:hover {
            border-color: var(--accent-cyan);
        }
        .btn-join {
            background: transparent;
            border: 1px solid var(--accent-lime);
            color: var(--accent-lime);
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-weight: 700;
            margin-top: 1.2rem;
            display: inline-block;
            transition: 0.3s;
        }
        .btn-join:hover {
            background: var(--accent-lime);
            color: #07070D;
        }
        /* News list */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: 0.3s;
        }
        .news-card:hover {
            border-color: var(--accent-lime);
        }
        .news-card img {
            height: 180px;
            object-fit: cover;
            width: 100%;
        }
        .news-body {
            padding: 1.2rem;
        }
        .news-body time {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .news-body h4 {
            margin: 0.4rem 0 0.6rem;
            font-size: 1.05rem;
        }
        .news-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(180deg, rgba(6,182,212,0.08) 0%, rgba(7,7,13,0.95) 100%);
            border-top: 1px solid var(--border-soft);
            text-align: left;
        }
        .cta-box {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 2rem;
            align-items: center;
        }
        .cta-box h2 {
            font-size: 1.8rem;
            margin-bottom: 0.5rem;
        }
        .cta-box p {
            color: var(--text-secondary);
        }
        .btn-cta-primary {
            background: linear-gradient(135deg, #A3E635, #65A30D);
            color: #07070D;
            padding: 0.8rem 2.5rem;
            border-radius: 2rem;
            font-weight: 800;
            font-size: 1rem;
            box-shadow: var(--shadow-neon);
            white-space: nowrap;
        }
        /* Footer */
        .footer {
            background: #050510;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 3.5rem 0 2rem;
            color: var(--text-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-col h4 {
            color: #fff;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .footer-col a {
            display: block;
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: var(--accent-lime);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 1.8rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: left;
        }
        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(7,7,13,0.8);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            box-shadow: 0 0 20px rgba(6,182,212,0.45);
            cursor: pointer;
            transition: all 0.3s;
            animation: float 3s ease-in-out infinite;
        }
        .fab::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 16px;
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            z-index: -1;
        }
        .fab:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(6,182,212,0.7);
        }
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
            }
            .hero-visual {
                order: -1;
            }
            .cta-box {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .hero {
                padding: 7rem 0 4rem;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-box {
                padding: 2rem 1.5rem;
            }
            .fab {
                left: 0.8rem;
                bottom: 5rem;
                width: 50px;
                height: 50px;
            }
        }
        @media (max-width: 520px) {
            .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }
        }