/* roulang page: index */
:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #EEF2FF;
    --secondary: #06B6D4;
    --accent: #F59E0B;
    --dark: #0F172A;
    --dark-soft: #1E293B;
    --light-bg: #F8FAFC;
    --white: #FFFFFF;
    --text: #1E293B;
    --text-light: #64748B;
    --border: #E2E8F0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 6px 24px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
    --transition: all 0.3s ease;
    --container-w: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: inline-block; vertical-align: middle; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

.grid-container {
    max-width: var(--container-w);
    padding-left: 20px;
    padding-right: 20px;
}

/* Section 通用 */
.section {
    padding: 96px 0;
    position: relative;
}
.section-alt {
    background: var(--light-bg);
}
.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
}
.section-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 6px 18px;
    border-radius: 100px;
    margin-bottom: 16px;
}
.section-head h2 {
    font-size: 38px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.3;
    margin: 0 0 14px;
    letter-spacing: -0.5px;
}
.section-head p {
    color: var(--text-light);
    font-size: 16px;
    margin: 0;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 34px;
    border-radius: 100px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    border: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.3);
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.35);
}
.btn-primary:focus {
    outline: 3px solid rgba(79, 70, 229, 0.35);
    outline-offset: 2px;
}
.btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,0.5);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.12);
    border-color: #fff;
    transform: translateY(-2px);
}
.btn-outline:focus {
    outline: 3px solid rgba(255,255,255,0.3);
    outline-offset: 2px;
}
.btn-sm {
    padding: 8px 22px;
    font-size: 14px;
}
.btn-white {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}
.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.18);
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.site-header.scrolled {
    box-shadow: var(--shadow-sm);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 20px;
    color: var(--text);
    white-space: nowrap;
}
.logo-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    flex-shrink: 0;
}
.logo-text {
    letter-spacing: 0.5px;
}
.logo:hover {
    opacity: 0.85;
}
.main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 6px;
}
.main-nav a {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 100px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    transition: var(--transition);
}
.main-nav a:hover {
    background: var(--primary-light);
    color: var(--primary);
}
.main-nav a.active {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
}
.nav-toggle {
    display: none;
    background: none;
    border: none;
    width: 44px;
    height: 44px;
    padding: 10px;
    border-radius: 10px;
    flex-direction: column;
    gap: 5px;
    align-items: center;
    justify-content: center;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
    position: relative;
    min-height: 720px;
    display: flex;
    align-items: center;
    padding: 140px 0 80px;
    background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
    color: #fff;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(15,23,42,0.88) 0%, rgba(15,23,42,0.62) 50%, rgba(79,70,229,0.35) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 760px;
    padding-top: 20px;
    padding-bottom: 20px;
}
.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.22);
    padding: 7px 22px;
    border-radius: 100px;
    font-size: 13px;
    letter-spacing: 1px;
    margin-bottom: 24px;
    backdrop-filter: blur(6px);
}
.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    margin: 0 0 18px;
    letter-spacing: -1px;
}
.hero p {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255,255,255,0.85);
    margin: 0 0 36px;
    max-width: 620px;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 56px;
}
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 42px;
}
.hero-stats .stat {
    text-align: left;
}
.hero-stats strong {
    display: block;
    font-size: 34px;
    font-weight: 800;
    line-height: 1.2;
    color: #fff;
}
.hero-stats span {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

/* Feature Cards */
.feature-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.feature-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}
.feature-card:hover::after {
    opacity: 1;
}
.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: 18px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
}
.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 12px;
}
.feature-card p {
    font-size: 15px;
    color: var(--text-light);
    margin: 0;
    line-height: 1.7;
}

/* Category Cards */
.category-card {
    display: block;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 100%;
    transition: var(--transition);
    position: relative;
}
.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.category-card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: var(--primary-light);
}
.category-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.category-card:hover .category-card-image img {
    transform: scale(1.05);
}
.category-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15,23,42,0.35), transparent 60%);
}
.category-body {
    padding: 26px 28px 30px;
    text-align: center;
}
.category-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 10px;
}
.category-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin: 0 0 20px;
}
.category-body .btn {
    font-size: 13px;
    padding: 8px 24px;
}

/* News List */
.news-section {
    background: var(--light-bg);
}
.news-list {
    max-width: 880px;
    margin: 0 auto;
}
.news-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 28px 32px;
    margin-bottom: 20px;
    transition: var(--transition);
    position: relative;
}
.news-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
    border-left: 4px solid var(--primary);
}
.news-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 10px;
}
.news-tag {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 100px;
}
.news-meta time {
    font-size: 13px;
    color: var(--text-light);
}
.news-title {
    font-size: 19px;
    font-weight: 600;
    margin: 0 0 8px;
    line-height: 1.4;
}
.news-title a {
    color: var(--text);
}
.news-title a:hover {
    color: var(--primary);
}
.news-desc {
    font-size: 14px;
    color: var(--text-light);
    margin: 0 0 14px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.news-link:hover {
    gap: 12px;
    color: var(--primary-dark);
}
.news-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
    background: var(--white);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
}

/* Hot Recommendations */
.hot-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    height: 100%;
    display: block;
}
.hot-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.hot-card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--primary-light);
}
.hot-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.hot-card:hover .hot-card-image img {
    transform: scale(1.06);
}
.hot-card-body {
    padding: 24px 26px 28px;
}
.hot-card-body .hot-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--secondary);
    background: rgba(6, 182, 212, 0.1);
    padding: 3px 12px;
    border-radius: 100px;
    margin-bottom: 12px;
}
.hot-card-body h3 {
    font-size: 18px;
    font-weight: 650;
    color: var(--text);
    margin: 0 0 8px;
    line-height: 1.45;
}
.hot-card-body p {
    font-size: 14px;
    color: var(--text-light);
    margin: 0;
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Stats */
.stats-section {
    background: var(--dark);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}
.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
    opacity: 0.15;
}
.stats-wrapper {
    position: relative;
    z-index: 2;
    text-align: center;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}
.stat-item strong {
    display: block;
    font-size: 46px;
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 8px;
}
.stat-item span {
    font-size: 15px;
    color: rgba(255,255,255,0.65);
}
.stat-item {
    position: relative;
}
.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 50px;
    background: rgba(255,255,255,0.15);
}

/* Steps */
.steps-section {
    background: var(--white);
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 20px;
}
.step-item {
    text-align: left;
    position: relative;
    padding: 32px 28px;
    background: var(--light-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.step-item:hover {
    background: var(--white);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.step-number {
    font-size: 42px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 18px;
    opacity: 0.2;
    transition: var(--transition);
}
.step-item:hover .step-number {
    opacity: 0.7;
}
.step-item h3 {
    font-size: 18px;
    font-weight: 650;
    margin: 0 0 10px;
    color: var(--text);
}
.step-item p {
    font-size: 14px;
    color: var(--text-light);
    margin: 0;
    line-height: 1.7;
}

/* FAQ */
.faq-section {
    background: var(--light-bg);
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}
.faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 14px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    gap: 16px;
}
.faq-question .faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
    transition: var(--transition);
}
.faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: var(--primary);
    color: #fff;
}
.faq-answer {
    display: none;
    padding: 0 28px 24px;
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}
.faq-item.open .faq-answer {
    display: block;
}

/* CTA */
.cta-section {
    position: relative;
    padding: 110px 0;
    background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
    text-align: center;
    color: #fff;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(79,70,229,0.82), rgba(6,182,212,0.75));
}
.cta-inner {
    position: relative;
    z-index: 2;
    max-width: 680px;
    margin: 0 auto;
}
.cta-inner h2 {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.25;
    margin: 0 0 18px;
}
.cta-inner p {
    font-size: 17px;
    color: rgba(255,255,255,0.9);
    margin: 0 0 36px;
    line-height: 1.7;
}

/* Footer */
.site-footer {
    background: var(--dark);
    color: rgba(255,255,255,0.8);
    padding: 70px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo {
    color: #fff;
    margin-bottom: 18px;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,0.6);
    margin: 0;
    max-width: 300px;
}
.footer-title {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin: 0 0 18px;
    letter-spacing: 0.5px;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}
.footer-links a:hover {
    color: #fff;
    padding-left: 5px;
}
.footer-bottom {
    padding: 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    margin: 0;
}

/* 响应式 */
@media (max-width: 1024px) {
    .section { padding: 78px 0; }
    .hero { min-height: 620px; padding: 120px 0 60px; }
    .hero h1 { font-size: 46px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
    .stat-item:not(:last-child)::after { display: none; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 768px) {
    .section { padding: 64px 0; }
    .section-head h2 { font-size: 32px; }
    .hero { min-height: 560px; padding: 110px 0 50px; text-align: center; }
    .hero p { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; gap: 28px; }
    .hero-stats strong { font-size: 28px; }
    
    .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        padding: 16px 20px;
        display: none;
        z-index: 99;
    }
    .main-nav.open { display: block; }
    .main-nav ul {
        flex-direction: column;
        gap: 4px;
    }
    .main-nav a {
        display: block;
        padding: 12px 16px;
        text-align: center;
    }
    .main-nav a.active {
        background: var(--primary-light);
        color: var(--primary);
    }
    .nav-toggle { display: flex; }
    
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
    .section { padding: 52px 0; }
    .section-head { margin-bottom: 40px; }
    .section-head h2 { font-size: 27px; }
    .hero h1 { font-size: 36px; }
    .hero p { font-size: 16px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-stats { flex-direction: column; align-items: center; gap: 20px; }
    .stats-grid { grid-template-columns: 1fr; gap: 28px; }
    .steps-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .news-item { padding: 20px 18px; }
    .faq-question { padding: 18px 20px; font-size: 15px; }
    .faq-answer { padding: 0 20px 20px; font-size: 14px; }
    .cta-inner h2 { font-size: 30px; }
}

/* roulang page: category1 */
:root {
            --primary: #1e5eff;
            --primary-dark: #1245c9;
            --primary-light: #eaf0ff;
            --accent: #f59e0b;
            --accent-light: #fff7e6;
            --dark: #0f172a;
            --text: #1e293b;
            --text-light: #5f6c80;
            --bg: #f5f7fb;
            --white: #ffffff;
            --border: #e2e8f0;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 12px rgba(15, 23, 42, 0.05);
            --shadow-md: 0 6px 30px rgba(15, 23, 42, 0.07);
            --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
            --transition: all .3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            outline: none;
            border: none;
        }
        .grid-container {
            max-width: 1200px;
            padding: 0 24px;
        }

        /* ===== Header ===== */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(12px);
            background: rgba(255, 255, 255, 0.92);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            box-shadow: 0 4px 14px rgba(30, 94, 255, 0.3);
        }
        .logo-text {
            letter-spacing: 1px;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 6px;
        }
        .main-nav a {
            display: inline-block;
            padding: 9px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .main-nav a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(30, 94, 255, 0.3);
        }
        .nav-toggle {
            display: none;
            background: none;
            cursor: pointer;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 110px 0 120px;
            text-align: center;
            color: #fff;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.82), rgba(30, 94, 255, 0.65));
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
            margin: 0 auto;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.18);
            border: 1px solid rgba(255, 255, 255, 0.35);
            backdrop-filter: blur(8px);
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            letter-spacing: 1px;
            margin-bottom: 24px;
            font-weight: 500;
        }
        .page-hero h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: 2px;
        }
        .page-hero p {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.88);
            max-width: 620px;
            margin: 0 auto 34px;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(30, 94, 255, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(30, 94, 255, 0.4);
        }
        .btn-outline-light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.4);
            backdrop-filter: blur(6px);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        /* ===== Stats Section ===== */
        .stats-section {
            margin-top: -52px;
            position: relative;
            z-index: 5;
            padding-bottom: 40px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 48px;
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .stat-item {
            text-align: center;
            padding: 12px 8px;
        }
        .stat-item .stat-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 8px;
        }

        /* ===== Section Common ===== */
        .section-wrap {
            padding: 80px 0;
        }
        .section-wrap.alt-bg {
            background: var(--white);
        }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-header .sec-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.7;
        }

        /* ===== Topic Cards ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .topic-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
        }
        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(30, 94, 255, 0.3);
        }
        .topic-card .topic-img {
            height: 160px;
            overflow: hidden;
            position: relative;
            background-size: cover;
            background-position: center;
        }
        .topic-card .topic-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.35), transparent);
        }
        .topic-card .topic-img .badge {
            position: absolute;
            bottom: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.85);
            color: var(--text);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }
        .topic-body {
            padding: 22px;
        }
        .topic-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
            color: var(--text);
        }
        .topic-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .topic-body .topic-meta {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .topic-body .topic-meta i {
            color: var(--primary);
        }

        /* ===== Filter Tabs ===== */
        .filter-section {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 34px 0;
        }
        .filter-tabs {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        .filter-tab {
            padding: 9px 24px;
            border-radius: 999px;
            background: var(--bg);
            color: var(--text-light);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .filter-tab:hover {
            color: var(--primary);
            background: var(--primary-light);
            border-color: rgba(30, 94, 255, 0.15);
        }
        .filter-tab.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(30, 94, 255, 0.3);
        }

        /* ===== Guide List ===== */
        .guide-list-section {
            padding: 80px 0;
        }
        .guide-list-wrap {
            max-width: 920px;
            margin: 0 auto;
        }
        .guide-list {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .guide-item {
            display: flex;
            align-items: center;
            gap: 22px;
            padding: 26px 30px;
            border-bottom: 1px solid #f1f5f9;
            transition: var(--transition);
            cursor: pointer;
        }
        .guide-item:last-child {
            border-bottom: none;
        }
        .guide-item:hover {
            background: #fafcff;
            padding-left: 36px;
        }
        .guide-item .guide-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--border);
            min-width: 44px;
            font-style: italic;
            transition: var(--transition);
        }
        .guide-item:hover .guide-num {
            color: var(--primary);
        }
        .guide-item .guide-main {
            flex: 1;
        }
        .guide-item .guide-main h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .guide-item .guide-main h3:hover {
            color: var(--primary);
        }
        .guide-item .guide-main .guide-desc {
            font-size: 14px;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-item .guide-tag {
            flex-shrink: 0;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
        }
        .guide-item .guide-tag.accent {
            background: var(--accent-light);
            color: #b87400;
        }
        .guide-item .guide-date {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== Featured Section ===== */
        .featured-section {
            padding: 80px 0;
            background: linear-gradient(180deg, var(--bg) 0%, #eef2ff 100%);
            position: relative;
            overflow: hidden;
        }
        .featured-card {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(226, 232, 240, 0.6);
        }
        .featured-card .featured-img {
            min-height: 340px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .featured-card .featured-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, transparent 40%, rgba(15, 23, 42, 0.15));
        }
        .featured-card .featured-content {
            padding: 48px 44px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-content .featured-tag {
            display: inline-block;
            background: var(--accent-light);
            color: #b87400;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 999px;
            margin-bottom: 18px;
            width: fit-content;
        }
        .featured-content h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 16px;
            color: var(--text);
        }
        .featured-content .featured-desc {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 26px;
        }
        .featured-list {
            list-style: none;
            margin-bottom: 30px;
        }
        .featured-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            padding: 7px 0;
        }
        .featured-list li i {
            color: var(--primary);
            font-size: 13px;
        }
        .btn-dark {
            background: var(--dark);
            color: #fff;
        }
        .btn-dark:hover {
            background: #1e293b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 23, 42, 0.3);
        }

        /* ===== Faq Section ===== */
        .faq-section {
            padding: 80px 0;
            background: var(--white);
        }
        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(30, 94, 255, 0.25);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 14px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            border-top: 0 solid var(--border);
        }
        .faq-item.active .faq-answer {
            padding: 0 24px 20px;
            max-height: 200px;
            border-top-width: 1px;
            border-top-color: var(--border);
            padding-top: 16px;
            margin-top: 2px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 96px 0;
            position: relative;
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(30, 94, 255, 0.7));
        }
        .cta-card {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            color: #fff;
        }
        .cta-card h2 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 16px;
        }
        .cta-card p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 30px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 50px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo .logo-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 320px;
        }
        .footer-title {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 11px;
            font-size: 14px;
        }
        .footer-links a {
            color: #94a3b8;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: #64748b;
        }
        .footer-bottom a {
            color: #94a3b8;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .stats-grid {
                padding: 32px 24px;
                gap: 18px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-card .featured-img {
                min-height: 260px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--white);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                padding: 16px 24px;
                transform: translateY(-140%);
                transition: transform 0.4s ease;
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .main-nav ul {
                flex-direction: column;
                gap: 4px;
            }
            .main-nav a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius-md);
            }
            .nav-toggle {
                display: flex;
            }
            .page-hero {
                padding: 76px 0 90px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                padding: 24px 18px;
            }
            .stat-item .stat-num {
                font-size: 30px;
            }
            .section-wrap {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .guide-item {
                flex-wrap: wrap;
                padding: 20px;
                gap: 14px;
            }
            .guide-item .guide-date {
                margin-left: auto;
            }
            .featured-content {
                padding: 32px 24px;
            }
            .featured-content h2 {
                font-size: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .cta-card h2 {
                font-size: 28px;
            }
        }
        @media (max-width: 520px) {
            .grid-container {
                padding: 0 16px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 20px 12px;
            }
            .stat-item .stat-num {
                font-size: 26px;
            }
            .hero-actions .btn {
                padding: 11px 22px;
                font-size: 14px;
            }
            .filter-tabs {
                gap: 8px;
            }
            .filter-tab {
                padding: 7px 16px;
                font-size: 13px;
            }
            .guide-item .guide-tag {
                display: none;
            }
            .guide-item .guide-main h3 {
                font-size: 15px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 13px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

/* roulang page: article */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --accent: #06b6d4;
  --bg: #f4f6fb;
  --surface: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 96px;
}

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .25s;
}

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

button, input {
  font-family: inherit;
}

.container, .grid-container {
  max-width: 1200px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(15, 23, 42, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  font-size: 20px;
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border-radius: 12px;
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  display: block;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all .25s;
}

.main-nav a:hover {
  background: #f1f5f9;
  color: var(--primary);
}

.main-nav a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s;
}

/* ===== Button ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.4);
}

.btn-outline-light {
  background: transparent;
  border-color: #fff;
  color: #fff;
}

.btn-outline-light:hover {
  background: #fff;
  color: var(--text);
}

.btn-light {
  background: #fff;
  color: var(--text);
}

.btn-light:hover {
  background: #f1f5f9;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

.btn-lg {
  padding: 14px 36px;
  font-size: 16px;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 90px 0 70px;
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.68), rgba(15, 23, 42, 0.38));
}

.page-banner * {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 14px;
  margin-bottom: 16px;
  color: #dbeafe;
}

.breadcrumb a {
  color: #dbeafe;
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-sep {
  color: rgba(255, 255, 255, 0.5);
}

.banner-badge {
  margin-bottom: 10px;
}

.badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(4px);
}

.page-banner h1 {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 800;
  max-width: 900px;
  margin: 12px auto 16px;
  line-height: 1.2;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.meta-list {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 16px;
  color: #e2e8f0;
  font-size: 14px;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ===== Article Main ===== */
.article-main {
  padding: 64px 0;
  background: var(--bg);
}

.article-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 40px;
  border: 1px solid var(--border);
}

.article-body {
  font-size: 16px;
  line-height: 1.9;
  color: #334155;
}

.article-body h2,
.article-body h3 {
  margin-top: 32px;
  margin-bottom: 16px;
  color: var(--text);
}

.article-body h2 {
  font-size: 26px;
}

.article-body h3 {
  font-size: 21px;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-body img {
  max-width: 100%;
  border-radius: 12px;
  margin: 24px 0;
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: #f8fafc;
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: #475569;
}

.article-missing {
  text-align: center;
  padding: 60px 20px;
}

.missing-icon {
  font-size: 48px;
  color: var(--primary);
}

.article-missing h2 {
  font-size: 28px;
  margin: 20px 0 10px;
}

.article-missing p {
  color: var(--text-muted);
  margin-bottom: 28px;
}

.article-tags {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.tags-label {
  color: var(--text-muted);
  font-size: 14px;
}

.tag {
  display: inline-block;
  padding: 6px 14px;
  background: #f1f5f9;
  border-radius: 999px;
  font-size: 13px;
  color: #475569;
  transition: all .25s;
}

.tag:hover {
  background: var(--primary);
  color: #fff;
}

.article-share {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
}

.share-label {
  color: var(--text-muted);
  font-size: 14px;
}

.article-share a {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: #f1f5f9;
  color: var(--text);
  font-size: 16px;
  transition: all .25s;
}

.article-share a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

/* ===== Sidebar ===== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.side-card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.side-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

.side-cat-item {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 12px;
  border-radius: 12px;
  transition: all .25s;
  color: var(--text);
  text-decoration: none;
  border: 1px solid transparent;
  margin-bottom: 4px;
}

.side-cat-item:hover {
  background: #f8fafc;
  border-color: var(--border);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.side-cat-item img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 12px;
}

.side-cat-item strong {
  display: block;
  font-size: 15px;
  color: var(--text);
}

.side-cat-item small {
  color: var(--text-muted);
  font-size: 13px;
}

.side-features {
  list-style: none;
  margin: 0;
  padding: 0;
}

.side-features li {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 14px;
  color: var(--text);
}

.side-features li:last-child {
  border-bottom: none;
}

.side-features i {
  color: var(--primary);
  margin-top: 3px;
}

.side-cta {
  color: #fff;
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 32px 24px;
}

.side-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.66);
  border-radius: var(--radius);
}

.side-cta * {
  position: relative;
  z-index: 1;
}

.side-cta h3 {
  font-size: 20px;
  margin: 0 0 8px;
}

.side-cta p {
  opacity: 0.8;
  margin-bottom: 20px;
  font-size: 14px;
}

/* ===== Related Section ===== */
.related-section {
  padding: 94px 0;
  background: var(--surface);
}

.section-head {
  text-align: center;
  margin-bottom: 48px;
}

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: clamp(24px, 3vw, 36px);
  margin: 0 0 10px;
  color: var(--text);
}

.section-head p {
  color: var(--text-muted);
  font-size: 16px;
}

.related-card {
  display: block;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  margin-bottom: 24px;
  transition: all .3s;
}

.related-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.related-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.related-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.88));
  color: #fff;
}

.related-content .badge {
  position: relative;
}

.related-content h3 {
  margin: 8px 0 4px;
  font-size: 20px;
}

.related-content p {
  margin: 0;
  font-size: 14px;
  opacity: 0.85;
}

/* ===== CTA Section ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
  text-align: center;
  color: #fff;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.72);
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: clamp(24px, 3.5vw, 38px);
  margin-bottom: 14px;
}

.cta-inner p {
  font-size: 18px;
  opacity: 0.8;
  margin-bottom: 28px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 72px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 340px;
}

.footer-title {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
  font-weight: 700;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: all .25s;
  font-size: 14px;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: #64748b;
  font-size: 14px;
}

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

  .article-main {
    padding: 48px 0;
  }

  .related-section {
    padding: 72px 0;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all .3s ease;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 4px;
  }

  .main-nav a {
    padding: 12px 16px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }

  .main-nav {
    top: 64px;
  }

  .page-banner {
    padding: 64px 0 48px;
  }

  .article-card {
    padding: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .related-card img {
    height: 180px;
  }
}

@media (max-width: 520px) {
  .page-banner h1 {
    font-size: 26px;
  }

  .article-main {
    padding: 32px 0;
  }

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

  .meta-list {
    gap: 12px;
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category2 */
:root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-soft: #eef2ff;
            --secondary: #f97316;
            --accent: #22d3ee;
            --bg: #f8fafc;
            --bg-soft: #f1f5f9;
            --text: #0f172a;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --card-bg: #ffffff;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.1);
            --shadow-hover: 0 16px 44px rgba(79, 70, 229, 0.14);
            --space-section: 80px;
            --space-section-sm: 56px;
            --max-width: 1200px;
            --header-h: 76px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease, opacity .25s ease;
        }

        a:hover {
            color: var(--primary);
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        .container,
        .grid-container {
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background: var(--bg-soft);
        }

        .section-white {
            background: #fff;
        }

        .section-header {
            margin-bottom: 44px;
            max-width: 720px;
        }

        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

        .section-subtitle {
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.8;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 12px 30px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
            box-shadow: 0 6px 18px rgba(99, 102, 241, 0.28);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(79, 70, 229, 0.36);
        }

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

        .btn-primary:focus-visible {
            outline: 3px solid rgba(99, 102, 241, 0.4);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text);
            border: 1.5px solid var(--border);
            border-radius: 999px;
            padding: 11px 28px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all .25s ease;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
            transform: translateY(-2px);
        }

        .btn-outline:focus-visible {
            outline: 3px solid rgba(99, 102, 241, 0.3);
            outline-offset: 2px;
        }

        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--text);
            border: none;
            border-radius: 999px;
            padding: 12px 30px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all .25s ease;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
        }

        .btn-light:hover {
            background: var(--primary-soft);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 3px 12px;
            border-radius: 999px;
            margin-right: 6px;
            letter-spacing: .5px;
        }

        .card-tag.orange {
            color: #c2410c;
            background: #fff7ed;
        }

        .card-tag.cyan {
            color: #0e7490;
            background: #ecfeff;
        }

        .card-tag.green {
            color: #166534;
            background: #f0fdf4;
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            height: var(--header-h);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--text);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
            color: #fff;
            font-size: 19px;
            font-weight: 800;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.32);
        }

        .logo-text {
            letter-spacing: -0.3px;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .main-nav ul li a {
            display: inline-block;
            padding: 10px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 999px;
            transition: background .22s ease, color .22s ease;
        }

        .main-nav ul li a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .main-nav ul li a.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 700;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            cursor: pointer;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: background .22s ease;
        }

        .nav-toggle:hover {
            background: var(--primary-soft);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform .3s ease, opacity .3s ease;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, rgba(30, 27, 75, 0.92), rgba(76, 29, 149, 0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 110px 0 90px;
            overflow: hidden;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.35) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            opacity: .85;
            margin-bottom: 22px;
        }

        .banner-breadcrumb a {
            color: #fff;
            opacity: .8;
        }

        .banner-breadcrumb a:hover {
            opacity: 1;
            color: #fff;
        }

        .banner-breadcrumb i {
            font-size: 11px;
            opacity: .6;
        }

        .page-banner h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -1px;
            margin-bottom: 18px;
        }

        .page-banner p {
            font-size: 17px;
            line-height: 1.8;
            opacity: .88;
            max-width: 620px;
            margin-bottom: 28px;
        }

        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .banner-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 14px;
            backdrop-filter: blur(6px);
        }

        /* ========== Review System ========== */
        .system-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .system-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 32px 26px;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            position: relative;
            overflow: hidden;
        }

        .system-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity .3s ease;
        }

        .system-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

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

        .system-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            background: var(--primary-soft);
            color: var(--primary);
        }

        .system-card:nth-child(2) .system-icon {
            background: #fff7ed;
            color: #f97316;
        }

        .system-card:nth-child(3) .system-icon {
            background: #ecfeff;
            color: #0891b2;
        }

        .system-card:nth-child(4) .system-icon {
            background: #f0fdf4;
            color: #16a34a;
        }

        .system-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .system-card p {
            font-size: 14.5px;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* ========== Latest Reviews ========== */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .review-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform .3s ease, box-shadow .3s ease;
            box-shadow: var(--shadow);
        }

        .review-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .review-cover {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .review-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .review-card:hover .review-cover img {
            transform: scale(1.05);
        }

        .score-badge {
            position: absolute;
            right: 14px;
            bottom: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 52px;
            height: 46px;
            background: rgba(15, 23, 42, 0.82);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            border-radius: 12px;
            border: 2px solid rgba(255, 255, 255, 0.28);
            padding: 0 8px;
            letter-spacing: -0.5px;
        }

        .review-body {
            padding: 22px 24px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .review-body .card-tag {
            margin-bottom: 10px;
        }

        .review-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .review-body h3 a {
            transition: color .2s;
        }

        .review-body h3 a:hover {
            color: var(--primary);
        }

        .review-body>p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .review-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 13.5px;
            transition: gap .2s ease;
        }

        .link-more:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* ========== Ranking ========== */
        .ranking-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }

        .rank-list {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 28px 30px;
            box-shadow: var(--shadow);
        }

        .rank-item {
            display: grid;
            grid-template-columns: 44px 1fr auto;
            grid-template-areas:
                "num info score"
                "bar bar bar";
            align-items: center;
            gap: 4px 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }

        .rank-item:last-child {
            border-bottom: none;
            padding-bottom: 4px;
        }

        .rank-item:first-child {
            padding-top: 4px;
        }

        .rank-num {
            grid-area: num;
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: var(--bg-soft);
            font-size: 16px;
            font-weight: 800;
            color: var(--text-weak);
        }

        .rank-item:nth-child(1) .rank-num {
            background: linear-gradient(135deg, #f59e0b, #f97316);
            color: #fff;
            box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
        }

        .rank-item:nth-child(2) .rank-num {
            background: linear-gradient(135deg, #94a3b8, #64748b);
            color: #fff;
        }

        .rank-item:nth-child(3) .rank-num {
            background: linear-gradient(135deg, #c084fc, #8b5cf6);
            color: #fff;
        }

        .rank-info {
            grid-area: info;
        }

        .rank-info h4 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.3;
        }

        .rank-info p {
            font-size: 13px;
            color: var(--text-weak);
        }

        .rank-score {
            grid-area: score;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .rank-bar {
            grid-area: bar;
            height: 5px;
            background: var(--bg-soft);
            border-radius: 99px;
            overflow: hidden;
        }

        .rank-bar span {
            display: block;
            height: 100%;
            border-radius: 99px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

        .ranking-note {
            background: linear-gradient(135deg, #312e81, #4f46e5);
            border-radius: var(--radius-lg);
            padding: 38px 34px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .ranking-note::after {
            content: '';
            position: absolute;
            right: -40px;
            bottom: -40px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.15), transparent 70%);
            border-radius: 50%;
        }

        .ranking-note h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .ranking-note p {
            font-size: 14.5px;
            line-height: 1.8;
            opacity: .88;
            margin-bottom: 20px;
        }

        .ranking-note ul {
            display: grid;
            gap: 10px;
        }

        .ranking-note ul li {
            display: flex;
            gap: 10px;
            font-size: 14px;
            opacity: .92;
            align-items: flex-start;
        }

        .ranking-note ul li i {
            color: #a5b4fc;
            margin-top: 5px;
            font-size: 12px;
        }

        /* ========== Process ========== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 22px;
        }

        .process-step {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: center;
            transition: transform .3s ease, box-shadow .3s ease;
            position: relative;
        }

        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .step-num {
            display: inline-block;
            font-size: 34px;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 2px var(--primary);
            line-height: 1;
            margin-bottom: 14px;
        }

        .process-step h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 13.5px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        .process-arrow {
            position: absolute;
            right: -16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--border);
            font-size: 18px;
            z-index: 2;
        }

        /* ========== Feature ========== */
        .feature-box {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            display: grid;
            grid-template-columns: 1fr 1.1fr;
        }

        .feature-image {
            height: 100%;
            min-height: 360px;
            position: relative;
            overflow: hidden;
        }

        .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feature-image .feature-badge {
            position: absolute;
            left: 20px;
            top: 20px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(6px);
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
        }

        .feature-content {
            padding: 44px 42px;
        }

        .feature-content h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.35;
            margin: 8px 0 16px;
        }

        .feature-content>p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 22px;
        }

        .feature-list {
            display: grid;
            gap: 12px;
            margin-bottom: 28px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            font-weight: 500;
        }

        .feature-list li i {
            color: var(--primary);
            margin-top: 5px;
            font-size: 14px;
        }

        /* ========== FAQ ========== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 30px;
            transition: border-color .3s ease, box-shadow .3s ease;
        }

        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .faq-item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .faq-item h4 i {
            color: var(--primary);
            font-size: 15px;
            margin-top: 5px;
        }

        .faq-item p {
            font-size: 14.5px;
            color: var(--text-weak);
            line-height: 1.8;
            padding-left: 25px;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 40px 0 var(--space-section);
        }

        .cta-box {
            background: linear-gradient(135deg, #1e1b4b 0%, #312e81 55%, #4f46e5 100%);
            border-radius: var(--radius-lg);
            padding: 56px 50px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            left: 10%;
            top: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.45), transparent 70%);
            border-radius: 50%;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            right: 5%;
            bottom: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(56, 189, 248, 0.3), transparent 70%);
            border-radius: 50%;
        }

        .cta-box h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .cta-box p {
            font-size: 16px;
            opacity: .85;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
            position: relative;
            z-index: 2;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .cta-actions .btn-outline {
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        .cta-actions .btn-outline:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            color: #fff;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.78);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .logo:hover {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
        }

        .footer-title::after {
            content: '';
            display: block;
            width: 28px;
            height: 2px;
            background: var(--primary);
            margin-top: 8px;
            border-radius: 2px;
        }

        .footer-links {
            display: grid;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: color .2s ease, padding-left .2s ease;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-links li {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 0 26px;
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.5);
            flex-wrap: wrap;
        }

        .footer-bottom p {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
        }

        .footer-bottom i {
            color: rgba(255, 255, 255, 0.6);
            transition: color .2s;
        }

        .footer-bottom i:hover {
            color: #fff;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            :root {
                --space-section: 64px;
            }

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

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

            .process-grid {
                grid-template-columns: repeat(3, 1fr);
            }

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

            .process-arrow {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 52px;
                --header-h: 68px;
            }

            .page-banner {
                padding: 80px 0 64px;
            }

            .page-banner h1 {
                font-size: 34px;
            }

            .section-title {
                font-size: 27px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                left: 0;
                right: 0;
                top: var(--header-h);
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 36px rgba(15, 23, 42, 0.1);
                padding: 10px 16px 20px;
                transform: translateY(-12px);
                opacity: 0;
                visibility: hidden;
                transition: all .3s ease;
                z-index: 99;
            }

            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }

            .main-nav ul li a {
                display: block;
                padding: 13px 18px;
                font-size: 16px;
                border-radius: 12px;
            }

            .ranking-grid,
            .feature-box,
            .faq-grid {
                grid-template-columns: 1fr;
            }

            .feature-image {
                min-height: 260px;
            }

            .feature-content {
                padding: 30px 26px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container,
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .page-banner h1 {
                font-size: 29px;
            }

            .page-banner p {
                font-size: 15.5px;
            }

            .system-grid,
            .reviews-grid,
            .process-grid,
            .faq-grid,
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .reviews-grid {
                gap: 20px;
            }

            .cta-box {
                padding: 36px 24px;
            }

            .cta-box h2 {
                font-size: 24px;
            }

            .section-header {
                margin-bottom: 30px;
            }

            .section-eyebrow {
                font-size: 12px;
            }
        }

/* roulang page: category3 */
:root {
  --primary: #2b6de8;
  --primary-dark: #1e50c6;
  --secondary: #7c3aed;
  --accent: #f59e0b;
  --bg: #f4f6fb;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 6px 28px rgba(15, 23, 42, 0.07);
  --shadow-hover: 0 14px 38px rgba(15, 23, 42, 0.12);
  --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { padding: 0; margin: 0; font-family: var(--font-family); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; height: auto; }
button { border: none; background: none; font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
h1, h2, h3, h4, h5 { line-height: 1.3; margin: 0 0 12px; word-break: break-word; }
p { margin: 0 0 16px; }
ul { padding: 0; margin: 0; list-style: none; }

/* Container */
.grid-container { max-width: 1200px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 22px;
  color: var(--text);
}
.logo-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-weight: 900;
  font-size: 20px;
  border-radius: 14px;
  box-shadow: 0 8px 18px rgba(43, 109, 232, 0.32);
}
.logo-text {
  letter-spacing: 0.5px;
}
.main-nav ul {
  display: flex;
  gap: 6px;
}
.main-nav a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  color: #334155;
}
.main-nav a:hover {
  color: var(--primary);
  background: rgba(43, 109, 232, 0.08);
}
.main-nav a.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 6px 16px rgba(43, 109, 232, 0.35);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 4px;
  transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Page Hero */
.page-hero {
  position: relative;
  background: linear-gradient(120deg, rgba(15, 23, 42, 0.85), rgba(30, 58, 138, 0.65)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #fff;
  padding: 120px 0 100px;
  isolation: isolate;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 50%, rgba(124, 58, 237, 0.28), transparent 60%);
  z-index: -1;
}
.hero-content {
  max-width: 720px;
}
.hero-badge {
  display: inline-block;
  padding: 7px 18px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}
.hero-content h1 {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 20px;
}
.hero-content p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.button {
  display: inline-block;
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  transition: var(--transition);
  border: 2px solid transparent;
}
.primary-btn {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.primary-btn:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255, 255, 255, 0.25);
}
.secondary-btn {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.secondary-btn:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
}
.hero-meta {
  display: flex;
  gap: 24px;
  margin-top: 48px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}
.hero-meta i {
  margin-right: 6px;
  color: var(--accent);
}

/* Section Block */
.section-block {
  padding: 90px 0;
}
.section-alt {
  background: #fff;
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(43, 109, 232, 0.1);
  color: var(--primary);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.8px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
}
.section-head p {
  color: var(--muted);
  font-size: 16px;
}

/* Game Cards */
.game-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.game-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}
.card-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 2.6;
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.game-card:hover .card-cover img {
  transform: scale(1.05);
}
.card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-badge {
  display: inline-block;
  width: fit-content;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 12px;
}
.badge-new {
  background: #ecfdf5;
  color: #059669;
}
.badge-hot {
  background: #fff7ed;
  color: #d97706;
}
.badge-test {
  background: #eff6ff;
  color: var(--primary);
}
.card-body h3 {
  font-size: 19px;
  font-weight: 800;
}
.card-body p {
  font-size: 14px;
  color: var(--muted);
  flex: 1;
}
.card-meta {
  display: flex;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: #475569;
}
.card-meta i {
  margin-right: 4px;
  color: var(--secondary);
}

/* Schedule / Timeline */
.schedule-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.schedule-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 20px 28px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
  transition: var(--transition);
  cursor: default;
}
.schedule-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateX(6px);
  border-left-color: var(--secondary);
}
.schedule-date {
  min-width: 76px;
  text-align: center;
  padding-right: 20px;
  border-right: 1px solid var(--border);
}
.date-day {
  display: block;
  font-size: 32px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.1;
}
.date-month {
  font-size: 14px;
  color: var(--muted);
}
.schedule-info {
  flex: 1;
}
.schedule-info h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 4px;
}
.schedule-info p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}
.badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}
.schedule-item > i {
  color: #cbd5e1;
  font-size: 18px;
}

/* Featured */
.featured-wrap {
  background: var(--surface);
  border-radius: 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.featured-media {
  position: relative;
  min-height: 380px;
}
.featured-media img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.featured-content {
  padding: 48px;
}
.featured-content .section-tag {
  margin-bottom: 14px;
}
.featured-content h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 18px;
}
.featured-content p {
  color: var(--muted);
  font-size: 15px;
}
.feature-list {
  margin: 24px 0;
  display: grid;
  gap: 14px;
}
.feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: #1e293b;
  font-size: 14px;
}
.feature-list i {
  color: var(--primary);
  font-size: 18px;
}
.featured-btn {
  background: var(--primary);
  color: #fff;
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  display: inline-block;
}
.featured-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(43, 109, 232, 0.35);
}

/* News List */
.news-items {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.news-item {
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 26px 30px;
  display: flex;
  align-items: center;
  gap: 28px;
  transition: var(--transition);
}
.news-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.news-date {
  min-width: 72px;
  text-align: center;
  background: rgba(43, 109, 232, 0.06);
  padding: 12px 10px;
  border-radius: 12px;
}
.news-date .day {
  font-size: 24px;
  font-weight: 900;
  color: var(--primary);
  display: block;
}
.news-date .mon {
  font-size: 13px;
  color: var(--muted);
}
.news-content {
  flex: 1;
}
.news-content h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 4px;
}
.news-content p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}
.news-link {
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.news-link:hover {
  color: var(--secondary);
}

/* Stats */
.stats-section {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  padding: 80px 0;
}
.stats-grid .cell {
  text-align: center;
}
.stat-num {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 15px;
  opacity: 0.85;
}

/* FAQ */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}
.faq-item {
  background: var(--surface);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 28px 32px;
  transition: var(--transition);
}
.faq-item:hover {
  box-shadow: var(--shadow-hover);
}
.faq-item h3 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.faq-item h3 i {
  color: var(--primary);
}
.faq-item p {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
  padding-left: 30px;
}

/* CTA */
.cta-block {
  background: linear-gradient(135deg, #f8fafc, #eef2ff);
  padding: 90px 0;
}
.cta-box {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 28px;
  padding: 60px;
  text-align: center;
  color: #fff;
  box-shadow: 0 24px 60px rgba(43, 109, 232, 0.3);
}
.cta-box h2 {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 16px;
}
.cta-box p {
  font-size: 16px;
  opacity: 0.92;
  max-width: 600px;
  margin: 0 auto 28px;
}
.cta-btn {
  background: #fff;
  color: var(--primary);
  padding: 14px 38px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 16px;
  display: inline-block;
  transition: var(--transition);
}
.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

/* Footer */
.site-footer {
  background: #0b1120;
  color: #94a3b8;
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 50px;
}
.footer-brand .logo {
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 15px;
  line-height: 1.8;
  color: #8a9bb5;
  max-width: 300px;
}
.footer-title {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: #8a9bb5;
  font-size: 15px;
  transition: var(--transition);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14px;
}
.footer-bottom i {
  color: #8a9bb5;
  transition: var(--transition);
}
.footer-bottom i:hover {
  color: #fff;
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-160%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 10px;
  }
  .main-nav a {
    display: block;
    text-align: center;
    padding: 12px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-hero {
    padding: 100px 0 80px;
  }
  .hero-content h1 {
    font-size: 36px;
  }
  .featured-content {
    padding: 36px;
  }
}

@media (max-width: 768px) {
  .section-block {
    padding: 60px 0;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .hero-content h1 {
    font-size: 30px;
  }
  .hero-meta {
    flex-direction: column;
    gap: 12px;
  }
  .schedule-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 22px;
  }
  .schedule-date {
    border-right: none;
    padding-right: 0;
    display: flex;
    gap: 10px;
    align-items: center;
  }
  .schedule-item > i {
    align-self: flex-end;
  }
  .news-item {
    flex-direction: column;
    gap: 16px;
    padding: 24px;
    align-items: flex-start;
  }
  .news-link {
    align-self: flex-end;
  }
  .cta-box {
    padding: 40px 24px;
  }
  .cta-box h2 {
    font-size: 26px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .header-inner {
    height: 64px;
  }
  .main-nav {
    top: 64px;
  }
  .logo-text {
    font-size: 18px;
  }
  .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 17px;
    border-radius: 12px;
  }
  .page-hero {
    padding: 80px 0 60px;
  }
  .hero-content h1 {
    font-size: 26px;
  }
  .hero-content p {
    font-size: 15px;
  }
  .button {
    display: block;
    width: 100%;
    text-align: center;
  }
  .hero-actions {
    gap: 12px;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .featured-media {
    min-height: 240px;
  }
  .featured-content {
    padding: 28px;
  }
  .featured-content h2 {
    font-size: 24px;
  }
}