/* roulang page: index */
:root {
    --bg-primary: #050B14;
    --bg-secondary: #0A1421;
    --surface: rgba(15, 27, 48, 0.7);
    --surface-border: rgba(0, 240, 255, 0.15);
    --accent-cyan: #00F0FF;
    --accent-blue: #0052FF;
    --accent-purple: #8B5CF6;
    --text-primary: #FFFFFF;
    --text-secondary: #A0AEC0;
    --text-muted: #637494;
    --gradient-primary: linear-gradient(135deg, #00F0FF 0%, #0052FF 100%);
    --gradient-card-border: linear-gradient(180deg, rgba(0,240,255,0.3) 0%, rgba(0,82,255,0.1) 100%);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.glass-card {
    background: var(--surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
}
.glass-card:hover {
    border-color: rgba(0, 240, 255, 0.4);
    box-shadow: var(--shadow-glow), var(--shadow-card);
    transition: all 0.35s ease;
}
.glow-btn {
    background: var(--gradient-primary);
    color: #050B14;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
}
.glow-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 240, 255, 0.6);
}
.glow-btn:active { transform: scale(0.96); }
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
/* Navigation */
.nav-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(5, 11, 20, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    transition: background 0.3s;
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    max-width: 1280px;
    margin: 0 auto;
}
.logo-text {
    font-weight: 800;
    font-size: 1.25rem;
    background: linear-gradient(135deg, #00F0FF, #0052FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
    position: relative;
}
.nav-links a:hover, .nav-links a.active { color: #00F0FF; }
.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 100%; height: 2px;
    background: #00F0FF;
    border-radius: 2px;
}
.nav-actions { display: flex; align-items: center; gap: 12px; }
.btn-login {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255,255,255,0.3);
    padding: 8px 22px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-login:hover { border-color: #00F0FF; color: #00F0FF; }
.btn-signup {
    background: var(--gradient-primary);
    color: #050B14;
    font-weight: 700;
    padding: 10px 28px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 240, 255, 0.3);
}
.btn-signup:hover { box-shadow: 0 6px 24px rgba(0, 240, 255, 0.55); transform: scale(1.03); }
.mobile-menu-btn { display: none; background: none; border: none; color: white; font-size: 1.6rem; cursor: pointer; }
/* FAB */
.fab-left {
    position: fixed;
    left: 20px;
    bottom: 80px;
    z-index: 110;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(12px);
    border: 2px solid transparent;
    background-clip: padding-box;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
    animation: fabBreathe 2.5s infinite ease-in-out;
}
.fab-left::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: linear-gradient(135deg, #00F0FF, #0052FF, #00F0FF);
    z-index: -1;
    animation: rotateBorder 4s linear infinite;
}
.fab-left i { color: #00F0FF; font-size: 1.4rem; }
.fab-left:hover { transform: scale(1.15); box-shadow: 0 0 30px rgba(0, 240, 255, 0.9); }
@keyframes fabBreathe {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}
@keyframes rotateBorder {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
/* Sections */
section { padding: 80px 0; }
.section-tag {
    display: inline-block;
    background: rgba(0, 240, 255, 0.15);
    color: #00F0FF;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 16px;
}
.section-title { font-size: 2.4rem; font-weight: 800; margin-bottom: 18px; line-height: 1.3; }
.section-desc { color: var(--text-secondary); font-size: 1.1rem; max-width: 700px; line-height: 1.65; }
/* Hero */
.hero { padding-top: 140px; padding-bottom: 80px; }
.hero-grid { display: flex; align-items: center; gap: 50px; }
.hero-text { flex: 1; }
.hero-icons-matrix {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 32px 0;
}
.icon-badge {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-sm);
    padding: 18px 14px;
    text-align: center;
    transition: all 0.3s;
}
.icon-badge:hover { border-color: #00F0FF; transform: translateY(-4px); }
.icon-badge i { font-size: 1.8rem; color: #00F0FF; margin-bottom: 8px; }
.icon-badge span { display: block; font-size: 0.8rem; color: var(--text-secondary); }
.status-bar {
    display: flex;
    gap: 24px;
    margin-top: 24px;
    flex-wrap: wrap;
}
.status-item { display: flex; align-items: center; gap: 8px; }
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: #00FF88; box-shadow: 0 0 8px #00FF88; animation: pulse 1.5s infinite; }
/* Cards Grid */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.card-step { background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-md); padding: 32px; text-align: left; }
.step-num { font-size: 2.5rem; font-weight: 800; background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.reward-card { background: var(--surface); border: 1px solid rgba(0,240,255,0.2); border-radius: var(--radius-md); padding: 28px; position: relative; overflow: hidden; }
.reward-card::before { content: 'HOT'; position: absolute; top: 12px; right: 12px; background: #FF007F; color: white; font-size: 0.7rem; font-weight: 700; padding: 4px 12px; border-radius: 20px; }
.promo-card { background: linear-gradient(135deg, rgba(0,82,255,0.2), rgba(0,240,255,0.05)); border: 1px solid rgba(0,240,255,0.25); border-radius: var(--radius-lg); padding: 32px; }
/* Screen Stage */
.screen-stage { display: flex; gap: 20px; overflow-x: auto; padding: 10px 0; }
.screen-mock { min-width: 260px; background: #0D111E; border-radius: 28px; padding: 16px; border: 2px solid rgba(0,240,255,0.2); }
.screen-mock img { width: 100%; border-radius: 16px; }
/* Vertical cards */
.vertical-scroll { display: flex; gap: 20px; overflow-x: auto; padding-bottom: 12px; }
.v-card { min-width: 200px; background: var(--surface); border-radius: var(--radius-md); padding: 16px; border: 1px solid var(--surface-border); }
.v-card img { width: 100%; border-radius: 12px; height: 140px; object-fit: cover; }
/* FAQ */
.faq-item { background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-sm); padding: 24px; margin-bottom: 16px; }
.faq-q { font-weight: 700; font-size: 1.1rem; color: #00F0FF; cursor: pointer; }
.faq-a { color: var(--text-secondary); margin-top: 12px; line-height: 1.65; }
/* Footer */
footer { background: #030812; border-top: 1px solid rgba(0,240,255,0.1); padding: 48px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-col p, .footer-col a { color: var(--text-muted); font-size: 0.9rem; line-height: 1.8; text-decoration: none; }
.footer-col a:hover { color: #00F0FF; }
.footer-bottom { text-align: center; margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.05); color: var(--text-muted); font-size: 0.8rem; }
@media (max-width: 1024px) {
    .grid-3, .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .hero-grid { flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .section-title { font-size: 1.8rem; }
    .hero-icons-matrix { grid-template-columns: repeat(2, 1fr); }
}
@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:0.4; } }

/* roulang page: article */
:root {
            --bg-primary: #050B14;
            --bg-secondary: #0A1421;
            --surface: rgba(15, 27, 48, 0.7);
            --surface-border: rgba(0, 240, 255, 0.15);
            --accent-cyan: #00F0FF;
            --accent-blue: #0052FF;
            --accent-purple: #8B5CF6;
            --text-primary: #FFFFFF;
            --text-secondary: #A0AEC0;
            --text-muted: #637494;
            --gradient-primary: linear-gradient(135deg, #00F0FF 0%, #0052FF 100%);
            --gradient-card-border: linear-gradient(180deg, rgba(0,240,255,0.3) 0%, rgba(0,82,255,0.1) 100%);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
        }
        body {
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        .glass-card {
            background: var(--surface);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }
        .glass-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: var(--shadow-glow), var(--shadow-card);
            transition: all 0.35s ease;
        }
        .glow-btn {
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
        }
        .glow-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.6);
        }
        .glow-btn:active { transform: scale(0.96); }
        .text-gradient {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1000;
            background: rgba(5, 11, 20, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            transition: background 0.3s;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 24px;
            max-width: 1280px;
            margin: 0 auto;
        }
        .logo-text {
            font-weight: 800;
            font-size: 1.25rem;
            background: linear-gradient(135deg, #00F0FF, #0052FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
        }
        .nav-links { display: flex; align-items: center; gap: 28px; }
        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
        }
        .nav-links a:hover, .nav-links a.active { color: #00F0FF; }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px; left: 0;
            width: 100%; height: 2px;
            background: #00F0FF;
            border-radius: 2px;
        }
        .nav-actions { display: flex; align-items: center; gap: 12px; }
        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255,255,255,0.3);
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-login:hover { border-color: #00F0FF; color: #00F0FF; }
        .btn-signup {
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(0, 240, 255, 0.3);
        }
        .btn-signup:hover { box-shadow: 0 6px 24px rgba(0, 240, 255, 0.55); transform: scale(1.03); }
        .mobile-menu-btn { display: none; background: none; border: none; color: white; font-size: 1.6rem; cursor: pointer; }
        section { padding: 80px 0; }
        .section-tag {
            display: inline-block;
            background: rgba(0, 240, 255, 0.15);
            color: #00F0FF;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 16px;
        }
        .section-title { font-size: 2.4rem; font-weight: 800; margin-bottom: 18px; line-height: 1.3; }
        .section-desc { color: var(--text-secondary); font-size: 1.1rem; max-width: 700px; line-height: 1.65; }
        .article-hero {
            padding-top: 140px;
            padding-bottom: 60px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(5,11,20,0.9) 0%, rgba(5,11,20,0.75) 100%);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 24px;
        }
        .article-meta span { display: flex; align-items: center; gap: 6px; }
        .article-body {
            max-width: 800px;
            margin: 0 auto;
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.75;
        }
        .article-body h2 {
            color: var(--text-primary);
            font-size: 1.8rem;
            font-weight: 700;
            margin-top: 40px;
            margin-bottom: 16px;
        }
        .article-body h3 {
            color: #00F0FF;
            font-size: 1.3rem;
            font-weight: 600;
            margin-top: 28px;
            margin-bottom: 12px;
        }
        .article-body p { margin-bottom: 18px; }
        .article-body ul, .article-body ol { margin-bottom: 18px; padding-left: 24px; }
        .article-body li { margin-bottom: 8px; }
        .article-body img {
            max-width: 100%;
            border-radius: var(--radius-md);
            margin: 24px 0;
        }
        .article-body a { color: #00F0FF; text-decoration: underline; }
        .article-body blockquote {
            border-left: 4px solid #00F0FF;
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(0,240,255,0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
        }
        .cta-box {
            background: var(--gradient-primary);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            color: #050B14;
            margin: 40px 0;
        }
        .cta-box h3 { color: #050B14; font-size: 1.6rem; margin-bottom: 12px; }
        .cta-box p { color: rgba(5,11,20,0.85); margin-bottom: 20px; }
        .not-found { text-align: center; padding: 100px 20px; }
        .not-found i { font-size: 4rem; color: var(--text-muted); margin-bottom: 20px; }
        .not-found h2 { font-size: 2rem; margin-bottom: 12px; }
        .not-found p { color: var(--text-secondary); margin-bottom: 24px; }
        footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(0,240,255,0.1);
            padding: 60px 0 30px;
            color: var(--text-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-col h3, .footer-col h4 { color: var(--text-primary); margin-bottom: 12px; }
        .footer-col p { font-size: 0.9rem; line-height: 1.6; margin-bottom: 8px; }
        .footer-col a { color: var(--text-secondary); text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
        .footer-col a:hover { color: #00F0FF; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: var(--surface);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: all 0.3s;
            animation: neonPulse 2s infinite;
        }
        .fab-left::before {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            background: linear-gradient(135deg, #00F0FF, #0052FF);
            z-index: -1;
            opacity: 0.7;
        }
        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.8);
        }
        .fab-left i { font-size: 1.6rem; color: #00F0FF; }
        @keyframes neonPulse {
            0%, 100% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.5); }
            50% { box-shadow: 0 0 25px rgba(0, 240, 255, 0.8); }
        }
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .section-title { font-size: 2rem; }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .mobile-menu-btn { display: block; }
            .nav-inner { flex-wrap: wrap; }
            .footer-grid { grid-template-columns: 1fr; }
            .article-body { font-size: 1rem; }
            .article-hero { padding-top: 120px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .section-title { font-size: 1.6rem; }
            .nav-actions .btn-login { padding: 6px 14px; font-size: 0.8rem; }
            .nav-actions .btn-signup { padding: 8px 18px; font-size: 0.85rem; }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #050B14;
            --bg-secondary: #0A1421;
            --surface: rgba(15, 27, 48, 0.7);
            --surface-border: rgba(0, 240, 255, 0.15);
            --accent-cyan: #00F0FF;
            --accent-blue: #0052FF;
            --accent-purple: #8B5CF6;
            --text-primary: #FFFFFF;
            --text-secondary: #A0AEC0;
            --text-muted: #637494;
            --gradient-primary: linear-gradient(135deg, #00F0FF 0%, #0052FF 100%);
            --gradient-card-border: linear-gradient(180deg, rgba(0,240,255,0.3) 0%, rgba(0,82,255,0.1) 100%);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .glass-card {
            background: var(--surface);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }
        .glass-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: var(--shadow-glow), var(--shadow-card);
            transition: all 0.35s ease;
        }
        .glow-btn {
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            text-decoration: none;
        }
        .glow-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.6);
        }
        .glow-btn:active {
            transform: scale(0.96);
        }
        .text-gradient {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(5, 11, 20, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            transition: background 0.3s;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 24px;
            max-width: 1280px;
            margin: 0 auto;
        }
        .logo-text {
            font-weight: 800;
            font-size: 1.25rem;
            background: linear-gradient(135deg, #00F0FF, #0052FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #00F0FF;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #00F0FF;
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            font-size: 0.95rem;
        }
        .btn-login:hover {
            border-color: #00F0FF;
            color: #00F0FF;
        }
        .btn-signup {
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(0, 240, 255, 0.3);
            font-size: 0.95rem;
        }
        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(0, 240, 255, 0.55);
            transform: scale(1.03);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.6rem;
            cursor: pointer;
        }
        section {
            padding: 80px 0;
        }
        .section-tag {
            display: inline-block;
            background: rgba(0, 240, 255, 0.15);
            color: #00F0FF;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 700px;
            line-height: 1.65;
        }
        .page-hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(5, 11, 20, 0.85) 0%, rgba(0, 82, 255, 0.35) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-booking-panel {
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
        }
        .hero-booking-text {
            flex: 1;
            min-width: 300px;
        }
        .hero-booking-form {
            flex: 1;
            min-width: 320px;
            background: rgba(15, 27, 48, 0.8);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            box-shadow: var(--shadow-card);
        }
        .hero-booking-form h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 24px;
            color: #00F0FF;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-secondary);
        }
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            color: white;
            font-size: 1rem;
            transition: all 0.3s;
            outline: none;
        }
        .form-group input:focus,
        .form-group select:focus {
            border-color: #00F0FF;
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .promo-card {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.2), rgba(0, 240, 255, 0.05));
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all 0.3s;
        }
        .promo-card:hover {
            border-color: rgba(0, 240, 255, 0.6);
            transform: translateY(-6px);
            box-shadow: var(--shadow-glow);
        }
        .promo-amount {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .step-list {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            counter-reset: step;
        }
        .step-item {
            flex: 1;
            min-width: 220px;
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            position: relative;
            transition: all 0.3s;
        }
        .step-item:hover {
            border-color: #00F0FF;
            transform: translateY(-4px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            cursor: pointer;
            transition: all 0.3s;
        }
        .faq-item:hover {
            border-color: #00F0FF;
        }
        .faq-item h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: #00F0FF;
        }
        .faq-item p {
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.3), rgba(0, 240, 255, 0.1));
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(0, 240, 255, 0.2);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0,240,255,0.05) 0%, transparent 70%);
            z-index: 0;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        footer {
            background: var(--bg-secondary);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            color: var(--text-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h3,
        .footer-col h4 {
            color: white;
        }
        .footer-col a {
            color: var(--text-secondary);
            text-decoration: none;
            display: inline-block;
            margin: 6px 0;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: #00F0FF;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.9rem;
        }
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--surface);
            backdrop-filter: blur(20px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            color: #00F0FF;
            font-size: 1.5rem;
        }
        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.8);
        }

        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(5, 11, 20, 0.95);
                flex-direction: column;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-booking-panel {
                flex-direction: column;
            }
            .section-title {
                font-size: 1.8rem;
            }
            section {
                padding: 60px 0;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .step-list {
                flex-direction: column;
            }
        }
        @media (max-width: 520px) {
            .nav-inner {
                padding: 12px 16px;
            }
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .promo-amount {
                font-size: 2rem;
            }
            .btn-login,
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #050B14;
            --bg-secondary: #0A1421;
            --surface: rgba(15, 27, 48, 0.7);
            --surface-border: rgba(0, 240, 255, 0.15);
            --accent-cyan: #00F0FF;
            --accent-blue: #0052FF;
            --accent-purple: #8B5CF6;
            --text-primary: #FFFFFF;
            --text-secondary: #A0AEC0;
            --text-muted: #637494;
            --gradient-primary: linear-gradient(135deg, #00F0FF 0%, #0052FF 100%);
            --gradient-card-border: linear-gradient(180deg, rgba(0,240,255,0.3) 0%, rgba(0,82,255,0.1) 100%);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
        }

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

        body {
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .glass-card {
            background: var(--surface);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }

        .glass-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: var(--shadow-glow), var(--shadow-card);
            transition: all 0.35s ease;
        }

        .glow-btn {
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            text-decoration: none;
        }

        .glow-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.6);
            color: #050B14;
        }

        .glow-btn:active {
            transform: scale(0.96);
        }

        .text-gradient {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(5, 11, 20, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            transition: background 0.3s;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 24px;
            max-width: 1280px;
            margin: 0 auto;
        }
        .logo-text {
            font-weight: 800;
            font-size: 1.25rem;
            background: linear-gradient(135deg, #00F0FF, #0052FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #00F0FF;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #00F0FF;
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            font-size: 0.9rem;
        }
        .btn-login:hover {
            border-color: #00F0FF;
            color: #00F0FF;
        }
        .btn-signup {
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(0, 240, 255, 0.3);
            font-size: 0.9rem;
        }
        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(0, 240, 255, 0.55);
            transform: scale(1.03);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.6rem;
            cursor: pointer;
        }

        section {
            padding: 80px 0;
        }
        .section-tag {
            display: inline-block;
            background: rgba(0, 240, 255, 0.15);
            color: #00F0FF;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 700px;
            line-height: 1.65;
        }

        .hero {
            padding-top: 140px;
            padding-bottom: 80px;
        }
        .hero-grid {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        .hero-text {
            flex: 1;
        }
        .hero-visual {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-visual img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-glow);
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .step-card {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 32px;
            text-align: left;
            transition: all 0.3s;
        }
        .step-card:hover {
            border-color: #00F0FF;
            transform: translateY(-4px);
        }
        .step-num {
            display: inline-block;
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 800;
            font-size: 1.2rem;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            margin-bottom: 16px;
        }
        .method-badge {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all 0.3s;
        }
        .method-badge:hover {
            border-color: #00F0FF;
            box-shadow: var(--shadow-glow);
        }
        .method-badge i {
            font-size: 2rem;
            color: #00F0FF;
        }
        .method-name {
            font-weight: 700;
            font-size: 1.1rem;
        }
        .time-badge {
            display: inline-block;
            background: rgba(0, 240, 255, 0.1);
            color: #00F0FF;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .stat-card {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            transition: all 0.3s;
        }
        .stat-card:hover {
            border-color: #00F0FF;
            transform: translateY(-4px);
        }
        .stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 16px;
            transition: all 0.3s;
        }
        .faq-item:hover {
            border-color: #00F0FF;
            box-shadow: var(--shadow-glow);
        }
        .faq-q {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .faq-q i {
            color: #00F0FF;
        }
        .faq-a {
            color: var(--text-secondary);
            margin-left: 32px;
        }

        footer {
            background: var(--bg-secondary);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h3,
        .footer-col h4 {
            color: white;
        }
        .footer-col p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .footer-col a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
            line-height: 2;
        }
        .footer-col a:hover {
            color: #00F0FF;
        }
        .footer-bottom {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-grid {
                flex-direction: column;
            }
            .section-title {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(5, 11, 20, 0.95);
                padding: 20px;
                gap: 16px;
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 1.8rem;
            }
            section {
                padding: 60px 0;
            }
            .hero {
                padding-top: 120px;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-signup {
                display: inline-block;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 16px;
            }
            .hero {
                padding-top: 100px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #050B14;
            --bg-secondary: #0A1421;
            --surface: rgba(15, 27, 48, 0.7);
            --surface-border: rgba(0, 240, 255, 0.15);
            --accent-cyan: #00F0FF;
            --accent-blue: #0052FF;
            --accent-purple: #8B5CF6;
            --text-primary: #FFFFFF;
            --text-secondary: #A0AEC0;
            --text-muted: #637494;
            --gradient-primary: linear-gradient(135deg, #00F0FF 0%, #0052FF 100%);
            --gradient-card-border: linear-gradient(180deg, rgba(0,240,255,0.3) 0%, rgba(0,82,255,0.1) 100%);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --radius-xl: 32px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }
        .glass-card {
            background: var(--surface);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }
        .glass-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: var(--shadow-glow), var(--shadow-card);
            transition: all 0.35s ease;
        }
        .glow-btn {
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            text-decoration: none;
        }
        .glow-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.6);
        }
        .glow-btn:active {
            transform: scale(0.96);
        }
        .text-gradient {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(5, 11, 20, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            transition: background 0.3s;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 24px;
            max-width: 1280px;
            margin: 0 auto;
        }
        .logo-text {
            font-weight: 800;
            font-size: 1.25rem;
            background: linear-gradient(135deg, #00F0FF, #0052FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #00F0FF;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #00F0FF;
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            font-size: 0.95rem;
        }
        .btn-login:hover {
            border-color: #00F0FF;
            color: #00F0FF;
        }
        .btn-signup {
            background: var(--gradient-primary);
            color: #050B14;
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(0, 240, 255, 0.3);
            font-size: 0.95rem;
        }
        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(0, 240, 255, 0.55);
            transform: scale(1.03);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.6rem;
            cursor: pointer;
        }
        section {
            padding: 80px 0;
        }
        .section-tag {
            display: inline-block;
            background: rgba(0, 240, 255, 0.15);
            color: #00F0FF;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 700px;
            line-height: 1.65;
        }
        .hero-cat {
            padding-top: 140px;
            padding-bottom: 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-cat-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .hero-cat-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }
        .hero-cat-text {
            flex: 1;
            min-width: 300px;
        }
        .hero-cat-text h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 20px;
        }
        .hero-cat-text p {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-cat-visual {
            flex: 1;
            min-width: 320px;
            display: flex;
            justify-content: center;
        }
        .speedometer-card {
            background: var(--surface);
            backdrop-filter: blur(20px);
            border: 2px solid rgba(0, 240, 255, 0.4);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            box-shadow: var(--shadow-glow);
            max-width: 400px;
            width: 100%;
        }
        .speed-number {
            font-size: 5rem;
            font-weight: 900;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            display: block;
        }
        .speed-unit {
            display: block;
            font-size: 1.5rem;
            color: #00F0FF;
            margin-top: 8px;
        }
        .pain-point-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        .pain-card {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all 0.3s;
            text-align: left;
        }
        .pain-card:hover {
            border-color: #FF4444;
            box-shadow: 0 0 25px rgba(255, 68, 68, 0.3);
        }
        .pain-icon {
            font-size: 2.2rem;
            color: #FF4444;
            margin-bottom: 14px;
        }
        .pain-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        .solution-card {
            background: var(--surface);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-md);
            padding: 32px;
            text-align: left;
            transition: all 0.35s;
            position: relative;
            overflow: hidden;
        }
        .solution-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transition: transform 0.35s;
        }
        .solution-card:hover::after {
            transform: scaleX(1);
        }
        .solution-card:hover {
            border-color: #00F0FF;
            transform: translateY(-6px);
            box-shadow: var(--shadow-glow);
        }
        .solution-badge {
            display: inline-block;
            background: rgba(0, 240, 255, 0.2);
            color: #00F0FF;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            margin-bottom: 16px;
        }
        .solution-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .result-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 48px;
        }
        .stat-item {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 30px 20px;
            text-align: center;
            transition: all 0.3s;
        }
        .stat-item:hover {
            border-color: #00F0FF;
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            line-height: 1.2;
        }
        .stat-label {
            display: block;
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-top: 8px;
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        .testimonial-card {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 32px;
            text-align: left;
        }
        .testimonial-card:hover {
            border-color: #00F0FF;
            box-shadow: var(--shadow-glow);
        }
        .testimonial-stars {
            color: #FFD700;
            margin-bottom: 12px;
            font-size: 1.1rem;
        }
        .testimonial-text {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }
        .testimonial-author {
            font-weight: 700;
            color: #00F0FF;
        }
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.25), rgba(0, 240, 255, 0.08));
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            text-align: center;
            padding: 80px 0;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            margin-top: 48px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            text-align: left;
            transition: all 0.3s;
        }
        .faq-item:hover {
            border-color: #00F0FF;
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: #00F0FF;
        }
        .faq-answer {
            color: var(--text-secondary);
            line-height: 1.7;
        }
        footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding: 50px 0 30px;
            text-align: left;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-col h3,
        .footer-col h4 {
            color: white;
            margin-bottom: 10px;
        }
        .footer-col p,
        .footer-col a {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            text-decoration: none;
            display: block;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: #00F0FF;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            color: var(--text-muted);
            font-size: 0.9rem;
            text-align: center;
        }
        /* Mobile Menu */
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(5, 11, 20, 0.95);
                backdrop-filter: blur(12px);
                padding: 20px;
                gap: 18px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            }
            .nav-links.show {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-cat-content {
                flex-direction: column;
            }
            .hero-cat-text h1 {
                font-size: 2.2rem;
            }
            .pain-point-grid,
            .solution-grid {
                grid-template-columns: 1fr;
            }
            .result-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 520px) {
            .result-stats {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .speed-number {
                font-size: 3.5rem;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-signup {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }