/* roulang page: index */
:root {
    --primary: #0f1b43;
    --primary-light: #1e3266;
    --accent: #e8a020;
    --accent-light: #f7c565;
    --bg: #f5f7fb;
    --bg-white: #ffffff;
    --text: #1a2233;
    --text-muted: #6b7a99;
    --border: #e3e8f0;
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 4px 20px rgba(15, 27, 67, 0.06);
    --shadow-lg: 0 12px 36px rgba(15, 27, 67, 0.12);
    --transition: all 0.3s ease;
    --container: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

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

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

ul, ol {
    list-style: none;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header / Nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    gap: 32px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(15, 27, 67, 0.2);
}

.logo span {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    flex: 1;
    justify-content: center;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
    padding: 8px 2px;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

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

.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-link.active {
    color: var(--primary);
    font-weight: 600;
}

.nav-link.active::after {
    transform: scaleX(1);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.cmd-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 8px 14px;
    width: 220px;
    cursor: text;
    transition: var(--transition);
}

.cmd-search:hover {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(232, 160, 32, 0.1);
}

.cmd-search svg {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.cmd-search input {
    width: 100%;
    font-size: 14px;
    color: var(--text);
    background: transparent;
}

.cmd-search input::placeholder {
    color: var(--text-muted);
}

.cmd-search kbd {
    font-size: 11px;
    color: var(--text-muted);
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 6px;
    white-space: nowrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    padding: 10px 22px;
    border-radius: 12px;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary:hover {
    background: var(--primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-accent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    padding: 10px 22px;
    border-radius: 12px;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-accent:hover {
    background: var(--accent-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: transparent;
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    padding: 10px 22px;
    border: 2px solid var(--border);
    border-radius: 12px;
    transition: var(--transition);
    white-space: nowrap;
}

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

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.menu-toggle svg {
    width: 20px;
    height: 20px;
    stroke: var(--primary);
}

/* Hero */
.hero {
    position: relative;
    background: var(--primary);
    color: #fff;
    padding: 120px 0 100px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    opacity: 0.45;
    z-index: 0;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(15, 27, 67, 0.92) 0%, rgba(15, 27, 67, 0.5) 55%, rgba(15, 27, 67, 0.2) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    border-radius: 100px;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-light);
    margin-bottom: 24px;
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.hero h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero h1 .highlight {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 52px;
    padding-top: 36px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.hero-stat .num {
    font-size: 32px;
    font-weight: 800;
    color: var(--accent);
}

.hero-stat .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
}

/* Stats Bar */
.stats-bar {
    padding: 48px 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.stat-card {
    text-align: center;
    padding: 24px 16px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.stat-card:hover {
    background: var(--bg);
    transform: translateY(-4px);
}

.stat-card .num {
    font-size: 40px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
}

.stat-card .num em {
    font-style: normal;
    color: var(--accent);
    font-size: 24px;
}

.stat-card .desc {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* Section defaults */
.section {
    padding: 88px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 52px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.section-header .overhead {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Services */
.services {
    background: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    margin-bottom: 20px;
    box-shadow: 0 8px 20px rgba(15, 27, 67, 0.2);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.service-card p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Categories */
.categories {
    background: var(--bg);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.category-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    min-height: 360px;
    display: flex;
    align-items: flex-end;
    color: #fff;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.category-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.category-card .overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 27, 67, 0.92) 0%, rgba(15, 27, 67, 0.5) 45%, rgba(15, 27, 67, 0.1) 100%);
}

.category-card .content {
    position: relative;
    z-index: 2;
    padding: 36px;
    width: 100%;
}

.category-card .category-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    background: var(--accent);
    border-radius: 100px;
    padding: 4px 14px;
    margin-bottom: 12px;
}

.category-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.category-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 16px;
}

.category-card .link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 14px;
}

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

/* Latest News */
.latest-news {
    background: var(--bg-white);
}

.news-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 48px;
    align-items: start;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.news-item {
    display: flex;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.news-item:first-child {
    padding-top: 0;
}

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

.news-thumb {
    width: 160px;
    height: 118px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
    background: var(--border);
}

.news-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.news-tag {
    font-size: 12px;
    font-weight: 600;
    background: rgba(232, 160, 32, 0.15);
    color: #b57a00;
    border-radius: 100px;
    padding: 3px 12px;
}

.news-date {
    font-size: 13px;
    color: var(--text-muted);
}

.news-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.4;
    margin-bottom: 6px;
    transition: var(--transition);
}

.news-title a:hover {
    color: var(--accent);
}

.news-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-card {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 24px;
}

.sidebar-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-card h3::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--accent);
    border-radius: 2px;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-item {
    font-size: 13px;
    color: var(--text-muted);
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 5px 14px;
    transition: var(--transition);
}

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

.sidebar-card .quick-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    font-size: 15px;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.sidebar-card .quick-link:last-child {
    border-bottom: none;
}

.sidebar-card .quick-link:hover {
    color: var(--accent);
    padding-left: 6px;
}

/* Hot Topics */
.hot-topics {
    background: var(--bg);
    overflow: hidden;
}

.topics-scroll {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.topic-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

.topic-body {
    padding: 20px;
}

.topic-body .rank {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
    background: rgba(232, 160, 32, 0.12);
    border-radius: 100px;
    padding: 2px 10px;
    display: inline-block;
    margin-bottom: 8px;
}

.topic-body h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
    line-height: 1.4;
}

.topic-body p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

.topic-body a {
    display: inline-block;
    margin-top: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
}

/* Process */
.process {
    background: var(--bg-white);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
}

.process-step {
    text-align: center;
    padding: 32px 20px;
    position: relative;
}

.process-step::after {
    content: '→';
    position: absolute;
    right: -22px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 28px;
    color: var(--border);
    z-index: 1;
}

.process-step:last-child::after {
    display: none;
}

.step-num {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    font-size: 22px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 8px 24px rgba(15, 27, 67, 0.2);
    position: relative;
}

.step-num::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 2px solid rgba(232, 160, 32, 0.3);
    animation: ring 2s infinite;
}

@keyframes ring {
    0% { transform: scale(0.95); opacity: 1; }
    100% { transform: scale(1.2); opacity: 0; }
}

.process-step h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    color: var(--text-muted);
}

/* FAQ */
.faq {
    background: var(--bg);
}

.faq-list {
    max-width: 780px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    border-radius: var(--radius);
    margin-bottom: 16px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
}

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

.faq-item summary {
    padding: 22px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    list-style: none;
}

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

.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.faq-item[open] .faq-icon {
    background: var(--accent);
    color: #fff;
    transform: rotate(45deg);
}

.faq-item .faq-answer {
    padding: 0 28px 22px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
}

/* CTA */
.cta-section {
    position: relative;
    background: var(--primary);
    padding: 80px 0;
    overflow: hidden;
}

.cta-section .cta-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    opacity: 0.25;
}

.cta-section .cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
    color: #fff;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Footer */
.site-footer {
    background: #0a1230;
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 32px;
}

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

.footer-brand .logo {
    color: #fff;
    margin-bottom: 16px;
}

.footer-brand .logo-icon {
    background: var(--accent);
    color: var(--primary);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    max-width: 300px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}

.footer-col a {
    display: block;
    padding: 6px 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.4);
}

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

/* Responsive */
@media (max-width: 1024px) {
    .header-inner {
        gap: 20px;
    }
    
    .cmd-search {
        width: 160px;
    }
    
    .main-nav {
        gap: 20px;
    }
    
    .hero h1 {
        font-size: 42px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .topics-scroll {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-step::after {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .site-header {
        height: auto;
        padding: 12px 0;
    }
    
    .header-inner {
        flex-wrap: wrap;
        height: auto;
        gap: 12px;
    }
    
    .main-nav {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        overflow-x: auto;
        gap: 20px;
        padding-bottom: 4px;
        display: none;
    }
    
    .main-nav.open {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        background: #fff;
        border-radius: 12px;
        padding: 16px;
        box-shadow: var(--shadow-lg);
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .cmd-search {
        display: none;
    }
    
    .header-actions .btn-primary {
        font-size: 13px;
        padding: 8px 16px;
    }
    
    .hero {
        padding: 80px 0 60px;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }
    
    .section {
        padding: 64px 0;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .news-layout {
        grid-template-columns: 1fr;
    }
    
    .news-sidebar {
        position: static;
    }
    
    .news-item {
        flex-direction: column;
    }
    
    .news-thumb {
        width: 100%;
        height: 180px;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    
    .hero h1 {
        font-size: 28px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn-primary,
    .hero-actions .btn-outline {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 26px;
    }
    
    .topics-scroll {
        grid-template-columns: 1fr;
    }
    
    .process-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-actions {
        flex-direction: column;
    }
}

/* roulang page: category1 */
:root {
            --primary: #0d1f3c;
            --primary-light: #16325c;
            --primary-lighter: #1e4273;
            --accent: #d14334;
            --accent-hover: #b73527;
            --accent-soft: #fdece9;
            --gold: #c4a24c;
            --bg: #ffffff;
            --bg-alt: #f5f7fa;
            --bg-deep: #0b1a32;
            --text: #1d2733;
            --text-weak: #5c6b7a;
            --text-light: #8e9aad;
            --border: #e2e8f0;
            --border-dark: #cbd5e0;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(13, 31, 60, .06);
            --shadow-md: 0 8px 24px rgba(13, 31, 60, .08);
            --shadow-lg: 0 16px 40px rgba(13, 31, 60, .12);
            --transition: all .25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        ul,
        ol {
            list-style: none;
        }

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

        button,
        input {
            font: inherit;
            color: inherit;
        }

        input:focus,
        button:focus,
        a:focus {
            outline: 2px solid rgba(209, 67, 52, .5);
            outline-offset: 2px;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            line-height: 1.2;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(209, 67, 52, .3);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(209, 67, 52, .35);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--border-dark);
            color: var(--text);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(13, 31, 60, .03);
        }

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

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

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(255, 255, 255, .8);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 72px;
            flex-wrap: nowrap;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            flex-shrink: 0;
        }

        .logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(13, 31, 60, .2);
        }

        .logo span.logo-sub {
            color: var(--accent);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 12px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-weak);
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(13, 31, 60, .05);
        }

        .nav-link.active {
            color: var(--accent);
            background: var(--accent-soft);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 7px 16px;
            min-width: 220px;
            transition: var(--transition);
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(13, 31, 60, .1);
            background: #fff;
        }

        .nav-search i {
            color: var(--text-light);
            font-size: 14px;
        }

        .nav-search input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            width: 100%;
        }

        .nav-search kbd {
            font-size: 11px;
            color: var(--text-light);
            background: var(--border);
            border-radius: 5px;
            padding: 2px 6px;
            border: 1px solid var(--border-dark);
            position: absolute;
            right: 10px;
        }

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

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 90px 0 80px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(13, 31, 60, .9) 0%, rgba(13, 31, 60, .6) 55%, rgba(13, 31, 60, .25) 100%);
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .page-hero .breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 28px;
        }

        .page-hero .breadcrumb a:hover {
            color: #fff;
        }

        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -.02em;
            margin-bottom: 20px;
        }

        .page-hero p.lead {
            font-size: 18px;
            max-width: 620px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 28px;
            line-height: 1.75;
        }

        .page-hero .hero-meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(255, 255, 255, .15);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .2);
            backdrop-filter: blur(6px);
        }

        .badge i {
            font-size: 12px;
        }

        .badge-dark {
            background: rgba(13, 31, 60, .08);
            color: var(--primary);
            border: 1px solid var(--border);
        }

        .badge-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

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

        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 20px;
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -.02em;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .section-head .sub {
            color: var(--text-weak);
            font-size: 15px;
        }

        .section-head .more-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .section-head .more-link i {
            transition: transform .2s;
        }

        .section-head .more-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Featured ===== */
        .featured-section {
            padding: 80px 0;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr;
            gap: 28px;
        }

        .featured-main {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            min-height: 420px;
            background: var(--primary);
            color: #fff;
        }

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

        .featured-main img {
            width: 100%;
            height: 100%;
            min-height: 420px;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .featured-main .gradient-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 31, 60, .15) 0%, rgba(13, 31, 60, .85) 85%);
        }

        .featured-main .content {
            position: relative;
            z-index: 2;
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            height: 100%;
            min-height: 420px;
        }

        .featured-main .tag {
            align-self: flex-start;
            margin-bottom: 14px;
        }

        .featured-main h3 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .featured-main p {
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .featured-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
        }

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

        .featured-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
            justify-content: center;
        }

        .featured-side-item {
            display: flex;
            gap: 16px;
            padding: 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: var(--transition);
            cursor: pointer;
            align-items: center;
        }

        .featured-side-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: transparent;
        }

        .featured-side-item img {
            width: 90px;
            height: 75px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .featured-side-item .text {
            flex: 1;
        }

        .featured-side-item .meta-tag {
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 4px;
        }

        .featured-side-item h4 {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            margin-bottom: 6px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .featured-side-item time {
            font-size: 12px;
            color: var(--text-light);
        }

        /* ===== News Grid ===== */
        .news-grid-section {
            padding: 80px 0;
            background: var(--bg-alt);
        }

        .filter-tabs {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .filter-tab {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-weak);
            cursor: pointer;
            transition: var(--transition);
        }

        .filter-tab:hover,
        .filter-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(13, 31, 60, .2);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .news-card .cover {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .news-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

        .news-card .cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(13, 31, 60, .35));
        }

        .news-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
        }

        .news-card .card-body {
            padding: 20px 20px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .card-body h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .news-card .card-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .news-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .news-card .card-meta .reads {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* ===== Topics ===== */
        .topics-section {
            padding: 80px 0;
        }

        .topics-container {
            background: var(--bg-deep);
            border-radius: var(--radius-lg);
            padding: 50px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .topics-container::before {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(209, 67, 52, .4), transparent 70%);
        }

        .topics-container .section-head {
            margin-bottom: 30px;
            position: relative;
            z-index: 1;
        }

        .topics-container .section-head h2 {
            color: #fff;
        }

        .topics-container .section-head .sub {
            color: rgba(255, 255, 255, .7);
        }

        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            position: relative;
            z-index: 1;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            font-size: 14px;
            color: rgba(255, 255, 255, .85);
            cursor: pointer;
            transition: var(--transition);
            backdrop-filter: blur(8px);
        }

        .topic-tag i {
            font-size: 13px;
            color: var(--accent);
        }

        .topic-tag:hover {
            background: rgba(255, 255, 255, .25);
            transform: translateY(-2px);
        }

        /* ===== Stats ===== */
        .stats-section {
            padding: 70px 0;
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .stat-item {
            text-align: center;
            padding: 30px 20px;
            background: var(--bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }

        .stat-item .num {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -.02em;
            line-height: 1.2;
        }

        .stat-item .num em {
            font-style: normal;
            color: var(--accent);
        }

        .stat-item .label {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 8px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
        }

        .cta-box {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 60px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 40px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-box::after {
            content: "";
            position: absolute;
            top: -40px;
            left: 40%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(209, 67, 52, .35), transparent 70%);
        }

        .cta-box .text {
            position: relative;
            z-index: 1;
            color: #fff;
        }

        .cta-box h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .7);
            font-size: 15px;
        }

        .cta-box .actions {
            display: flex;
            gap: 14px;
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
        }

        .faq-wrap {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            gap: 16px;
            user-select: none;
        }

        .faq-question .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            color: var(--accent);
        }

        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-weak);
            border-top: 0 solid var(--border);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
            border-top-width: 1px;
        }

        .faq-answer p {
            padding-top: 16px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, .65);
            padding: 70px 0 0;
            font-size: 14px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }

        .site-footer .footer-brand .logo {
            color: #fff;
            margin-bottom: 18px;
        }

        .site-footer .footer-brand .logo .logo-icon {
            background: var(--accent);
        }

        .site-footer .footer-brand p {
            max-width: 320px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .55);
        }

        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: .02em;
        }

        .site-footer .footer-col a {
            display: block;
            padding: 6px 0;
            color: rgba(255, 255, 255, .6);
            transition: var(--transition);
        }

        .site-footer .footer-col a:hover {
            color: #fff;
            padding-left: 6px;
        }

        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            flex-wrap: wrap;
            gap: 12px;
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, .6);
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 13px;
            }
            .nav-search {
                min-width: 140px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .featured-main {
                min-height: 350px;
            }
            .featured-main .content {
                min-height: 350px;
            }
            .featured-main img {
                min-height: 350px;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .nav-wrap {
                height: 64px;
            }
            .nav-search {
                display: none;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                max-height: 0;
                overflow: hidden;
                padding: 0 20px;
                transition: max-height .3s ease, padding .3s ease;
                visibility: hidden;
                opacity: 0;
                margin: 0;
            }
            .main-nav.open {
                max-height: 300px;
                padding: 16px 20px;
                visibility: visible;
                opacity: 1;
            }
            .main-nav .nav-link {
                width: 100%;
                padding: 12px 16px;
                border-radius: 8px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-actions .btn {
                display: none;
            }
            .page-hero {
                padding: 60px 0 50px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .section {
                padding: 60px 0;
            }
            .featured-section,
            .news-grid-section,
            .topics-section,
            .stats-section,
            .cta-section,
            .faq-section {
                padding: 60px 0;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .featured-main .content {
                padding: 24px;
            }
            .featured-main h3 {
                font-size: 20px;
            }
            .featured-main p {
                font-size: 14px;
            }
            .news-card .card-body h3 {
                font-size: 15px;
            }
            .topics-container {
                padding: 32px;
            }
            .cta-box {
                flex-direction: column;
                padding: 40px 24px;
                text-align: center;
            }
            .cta-box h2 {
                font-size: 22px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p.lead {
                font-size: 15px;
            }
            .featured-side-item {
                flex-direction: row;
            }
            .featured-side-item img {
                width: 70px;
                height: 60px;
            }
            .filter-tabs {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 8px;
            }
            .filter-tab {
                flex-shrink: 0;
            }
            .topic-tags {
                gap: 8px;
            }
            .topic-tag {
                padding: 8px 14px;
                font-size: 13px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
            --primary: #1b3a6b;
            --primary-2: #2a5298;
            --accent: #d8a848;
            --red: #c8102e;
            --ink: #152033;
            --muted: #5d6b82;
            --bg: #f4f6fa;
            --white: #ffffff;
            --line: #e3e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(22, 32, 51, .05);
            --shadow-md: 0 10px 35px rgba(22, 32, 51, .09);
            --shadow-lg: 0 24px 70px rgba(22, 32, 51, .14);
            --header-h: 76px;
        }
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font: inherit;
            border: none;
            outline: none;
            background: transparent;
        }
        ul,
        ol {
            list-style: none;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(27, 58, 107, .3);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1;
            cursor: pointer;
            transition: all .25s ease;
            border: 1.5px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(27, 58, 107, .25);
        }
        .btn-primary:hover {
            background: var(--primary-2);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(27, 58, 107, .32);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }
        .btn-block {
            width: 100%;
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
        }
        .btn-light:hover {
            background: #f0f3f8;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            border-color: rgba(255, 255, 255, .8);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 21px;
            color: var(--ink);
            white-space: nowrap;
        }
        .logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            font-weight: 800;
            box-shadow: 0 6px 16px rgba(27, 58, 107, .25);
        }
        .logo span {
            color: var(--accent);
        }
        .logo .logo-icon+span {
            color: var(--ink);
        }
        .main-nav {
            display: flex;
            gap: 30px;
            align-items: center;
        }
        .nav-link {
            font-weight: 500;
            color: var(--muted);
            padding: 8px 2px;
            position: relative;
            font-size: 15px;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 2px;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .cmd-search {
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--line);
            background: #f7f8fb;
            border-radius: 100px;
            padding: 8px 16px;
            min-height: 40px;
            color: var(--muted);
            font-size: 14px;
            cursor: pointer;
            transition: all .2s ease;
        }
        .cmd-search:hover {
            border-color: var(--primary);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        .cmd-search kbd {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 6px;
            padding: 0 6px;
            font-size: 12px;
            color: var(--muted);
            font-family: inherit;
        }
        .cmd-search svg {
            width: 15px;
            height: 15px;
            stroke: currentColor;
            fill: none;
            stroke-width: 2;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid var(--line);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            background: #fff;
            cursor: pointer;
        }
        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: all .3s ease;
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* Search Overlay */
        .search-overlay {
            position: fixed;
            inset: 0;
            z-index: 200;
            background: rgba(10, 20, 40, .55);
            backdrop-filter: blur(6px);
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding: 14vh 20px 20px;
            opacity: 0;
            pointer-events: none;
            transition: opacity .25s ease;
        }
        .search-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .search-panel {
            width: 100%;
            max-width: 640px;
            background: #fff;
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
            padding: 22px;
            transform: translateY(-20px);
            transition: transform .25s ease;
        }
        .search-overlay.open .search-panel {
            transform: translateY(0);
        }
        .search-field {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 6px 8px 6px 16px;
            border: 2px solid var(--line);
            border-radius: 14px;
            transition: border-color .2s;
        }
        .search-field:focus-within {
            border-color: var(--primary);
        }
        .search-field svg {
            width: 18px;
            height: 18px;
            stroke: var(--muted);
            fill: none;
            stroke-width: 2;
            flex-shrink: 0;
        }
        .search-field input {
            flex: 1;
            font-size: 16px;
            padding: 8px 0;
            color: var(--ink);
            min-width: 0;
        }
        .search-field input::placeholder {
            color: #9aa8b8;
        }
        .search-close {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--muted);
            background: var(--bg);
            cursor: pointer;
            flex-shrink: 0;
        }
        .search-close:hover {
            background: var(--line);
            color: var(--ink);
        }
        .search-suggest {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-top: 18px;
            font-size: 14px;
            color: var(--muted);
        }
        .search-suggest .suggest-label {
            font-weight: 600;
            color: var(--ink);
        }
        .search-suggest a {
            padding: 6px 14px;
            background: var(--bg);
            border-radius: 100px;
            border: 1px solid var(--line);
            color: var(--primary);
            font-weight: 500;
            transition: all .2s;
        }
        .search-suggest a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* Article Hero */
        .article-hero {
            position: relative;
            padding: 110px 0 90px;
            background-color: var(--primary);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 25, 47, .92) 0%, rgba(20, 45, 80, .72) 100%);
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .9);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .current {
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            color: rgba(255, 255, 255, .85);
        }
        .article-hero h1 {
            font-size: clamp(28px, 4vw, 46px);
            font-weight: 800;
            max-width: 900px;
            margin: 22px auto 0;
            line-height: 1.3;
            letter-spacing: -.5px;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 18px;
            margin-top: 28px;
            font-size: 14px;
            color: rgba(255, 255, 255, .85);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .article-meta .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
        }

        /* Article Main */
        .article-section {
            padding: 70px 0 90px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 48px;
            align-items: start;
        }
        .article-main {
            min-width: 0;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            padding: 48px;
            box-shadow: var(--shadow-sm);
        }
        .article-content {
            font-size: 16.5px;
            line-height: 1.95;
            color: #243448;
            word-break: break-word;
        }
        .article-content p {
            margin-bottom: 1.4em;
        }
        .article-content h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--ink);
            margin: 1.8em 0 .8em;
            line-height: 1.4;
        }
        .article-content h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--ink);
            margin: 1.5em 0 .7em;
            line-height: 1.4;
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .article-content a:hover {
            color: var(--red);
        }
        .article-content ul,
        .article-content ol {
            padding-left: 1.5em;
            margin-bottom: 1.4em;
        }
        .article-content ul {
            list-style: disc;
        }
        .article-content ol {
            list-style: decimal;
        }
        .article-content li {
            margin: .45em 0;
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg);
            padding: 16px 22px;
            border-radius: 0 12px 12px 0;
            color: var(--muted);
            margin-bottom: 1.4em;
        }
        .article-content img {
            border-radius: 14px;
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 1.4em;
            font-size: 15px;
        }
        .article-content th,
        .article-content td {
            border: 1px solid var(--line);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content th {
            background: var(--bg);
            font-weight: 700;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 30px;
            border-top: 1px solid var(--line);
            margin-top: 40px;
        }
        .tag {
            background: var(--bg);
            border-radius: 100px;
            padding: 7px 16px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
            border: 1px solid transparent;
            transition: all .2s;
        }
        .tag:hover {
            border-color: var(--line);
            background: #fff;
        }
        .tag-label {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .tag-label:hover {
            background: var(--primary-2);
            color: #fff;
        }

        .share-block {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 26px;
            padding-top: 26px;
            border-top: 1px solid var(--line);
        }
        .share-label {
            font-size: 14px;
            color: var(--muted);
            margin-right: 4px;
        }
        .share-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border: 1px solid var(--line);
            border-radius: 100px;
            font-size: 14px;
            color: var(--muted);
            background: #fff;
            transition: all .2s;
        }
        .share-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #f8f9fc;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .author-card {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 22px 26px;
            margin-top: 30px;
        }
        .author-avatar {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .author-info h4 {
            font-weight: 700;
            font-size: 16px;
        }
        .author-info p {
            font-size: 14px;
            color: var(--muted);
            margin-top: 4px;
        }

        .not-found {
            text-align: center;
            padding: 50px 20px;
        }
        .not-found-icon {
            font-size: 72px;
            font-weight: 800;
            color: var(--line);
            line-height: 1;
            margin-bottom: 24px;
            letter-spacing: 2px;
        }
        .not-found h2 {
            font-size: 32px;
            font-weight: 800;
        }
        .not-found p {
            color: var(--muted);
            margin: 14px 0 30px;
        }

        /* Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 110px;
        }
        .side-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .side-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .side-card .side-sub {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 16px;
        }
        .side-cat-list a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 13px 0;
            border-bottom: 1px solid var(--line);
            font-weight: 600;
            color: var(--ink);
            font-size: 15px;
        }
        .side-cat-list a:last-child {
            border-bottom: none;
        }
        .side-cat-list a:hover {
            color: var(--primary);
        }
        .side-cat-list .cat-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: var(--bg);
            color: var(--primary);
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all .2s;
        }
        .side-cat-list a:hover .cat-icon {
            background: var(--primary);
            color: #fff;
        }
        .side-cat-list .arrow {
            margin-left: auto;
            color: var(--muted);
            font-size: 20px;
            transition: transform .2s;
        }
        .side-cat-list a:hover .arrow {
            transform: translateX(3px);
            color: var(--primary);
        }
        .side-list li+li {
            border-top: 1px solid var(--line);
        }
        .side-list a {
            display: block;
            padding: 11px 2px;
            color: var(--muted);
            font-size: 14.5px;
            line-height: 1.5;
            transition: all .2s;
        }
        .side-list a:hover {
            color: var(--primary);
            padding-left: 8px;
        }
        .side-cta {
            background: linear-gradient(150deg, var(--primary) 0%, var(--primary-2) 100%);
            color: #fff;
            border: none;
            position: relative;
            overflow: hidden;
        }
        .side-cta h3 {
            color: #fff;
        }
        .side-cta p {
            color: rgba(255, 255, 255, .78);
            margin: 12px 0 22px;
            font-size: 14.5px;
            line-height: 1.7;
        }
        .side-cta .btn {
            background: #fff;
            color: var(--primary);
        }
        .side-cta .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, .18);
        }

        /* Related */
        .related-section {
            padding: 90px 0;
            background: #fff;
            border-top: 1px solid var(--line);
        }
        .section-head {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-head .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 800;
            letter-spacing: -.5px;
        }
        .section-head p {
            color: var(--muted);
            margin-top: 10px;
            font-size: 15px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .relate-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--line);
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }
        .relate-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .relate-card .thumb {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .relate-card:hover .thumb {
            transform: scale(1.04);
        }
        .relate-card .body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .relate-card .tag {
            align-self: flex-start;
            margin-bottom: 12px;
            background: #fff;
            border: 1px solid var(--line);
        }
        .relate-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
        }
        .relate-card p {
            color: var(--muted);
            font-size: 14px;
            margin-top: 8px;
        }
        .relate-card .more {
            margin-top: auto;
            padding-top: 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .relate-card .more .arrow {
            transition: transform .2s;
        }
        .relate-card:hover .more .arrow {
            transform: translateX(4px);
        }

        /* FAQ */
        .faq-section {
            padding: 90px 0;
        }
        .faq-grid {
            max-width: 860px;
            margin: 0 auto;
            display: grid;
            gap: 14px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: box-shadow .2s, border-color .2s;
        }
        .faq-item:hover {
            border-color: #cdd6e2;
        }
        .faq-item summary {
            list-style: none;
            padding: 22px 28px;
            font-weight: 600;
            cursor: pointer;
            position: relative;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 16px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            color: var(--primary);
            font-weight: 500;
            transition: transform .25s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }
        .faq-item[open] summary {
            border-bottom: 1px solid var(--line);
        }
        .faq-item .faq-body {
            padding: 18px 28px 24px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            padding: 20px 0 90px;
        }
        .cta-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
            border-radius: var(--radius-lg);
            padding: 64px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            top: -120px;
            right: -80px;
        }
        .cta-card::after {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .05);
            bottom: -80px;
            left: -60px;
        }
        .cta-card .container-inner {
            position: relative;
            z-index: 2;
        }
        .cta-card h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            letter-spacing: -.5px;
        }
        .cta-card p {
            color: rgba(255, 255, 255, .82);
            margin-top: 12px;
            font-size: 16px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 32px;
        }

        /* Footer */
        .site-footer {
            background: #0e1f35;
            color: rgba(255, 255, 255, .72);
            padding: 70px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 48px;
        }
        .footer-brand .logo {
            color: #fff;
        }
        .footer-brand .logo .logo-icon {
            background: var(--accent);
            color: var(--ink);
            box-shadow: none;
        }
        .footer-brand .logo span {
            color: var(--accent);
        }
        .footer-brand .logo .logo-icon+span {
            color: #fff;
        }
        .footer-brand p {
            margin-top: 18px;
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            padding: 6px 0;
            color: rgba(255, 255, 255, .62);
            font-size: 14.5px;
            transition: all .2s;
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 24px;
            margin-top: 50px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .7);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .side-card {
                flex: 1;
                min-width: 240px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 36px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                gap: 12px;
            }
            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 24px;
                gap: 4px;
                border-bottom: 1px solid var(--line);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all .3s ease;
                z-index: 99;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav .nav-link {
                padding: 14px 8px;
                font-size: 16px;
                border-radius: 10px;
            }
            .main-nav .nav-link:hover {
                background: var(--bg);
            }
            .main-nav .nav-link.active {
                background: var(--bg);
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .header-actions .btn-sm {
                display: none;
            }
            .cmd-search span,
            .cmd-search kbd {
                display: none;
            }
            .cmd-search {
                padding: 8px 11px;
            }
            .article-hero {
                padding: 90px 0 70px;
            }
            .article-card {
                padding: 32px 24px;
            }
            .article-section {
                padding: 50px 0 70px;
            }
            .related-section,
            .faq-section {
                padding: 70px 0;
            }
            .cta-section {
                padding: 10px 0 70px;
            }
            .cta-card {
                padding: 50px 24px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-hero {
                padding: 80px 0 60px;
            }
            .article-hero h1 {
                font-size: 27px;
            }
            .article-card {
                padding: 24px 18px;
                border-radius: 16px;
            }
            .article-content {
                font-size: 15.5px;
            }
            .breadcrumb {
                font-size: 13px;
                gap: 6px;
            }
            .author-card {
                flex-direction: column;
                text-align: center;
                padding: 20px;
            }
            .share-btn {
                padding: 8px 14px;
                font-size: 13px;
            }
            .faq-item summary {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-item .faq-body {
                padding: 16px 20px 20px;
            }
            .cta-card {
                padding: 40px 20px;
                border-radius: 16px;
            }
            .cta-buttons .btn {
                width: 100%;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                gap: 24px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root {
    --primary: #0f2b46;
    --primary-dark: #081c2e;
    --primary-light: #1d4468;
    --accent: #c9a227;
    --accent-dark: #a8871a;
    --accent-light: #f4e9c8;
    --bg: #f5f6f8;
    --bg-white: #ffffff;
    --bg-light: #eef1f5;
    --bg-deep: #0a1f33;
    --text: #1e293b;
    --text-light: #5a6b7d;
    --text-mute: #8b98a7;
    --border: #e5e9ef;
    --border-dark: #d0d7df;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 3px rgba(15, 43, 70, .06);
    --shadow-md: 0 6px 20px rgba(15, 43, 70, .08);
    --shadow-lg: 0 16px 40px rgba(15, 43, 70, .12);
    --transition: all .25s ease;
    --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 32px;
    --space-lg: 64px;
    --space-xl: 96px;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button { font-family: inherit; border: none; background: none; cursor: pointer; color: inherit; }
input { font-family: inherit; font-size: 14px; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; color: var(--text);}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
::selection { background: rgba(201, 162, 39, .25); }

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    white-space: nowrap;
    transition: var(--transition);
    border: 2px solid transparent;
}
.btn i { font-size: 14px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-accent { background: var(--accent); color: var(--primary-dark); }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { border-color: rgba(255,255,255,.5); color: #fff; background: transparent; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn-sm { padding: 7px 16px; font-size: 13px; border-radius: 6px; }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: var(--radius); }
.btn-block { width: 100%; }

/* ===== 标签 ===== */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: var(--accent-light);
    color: var(--accent-dark);
    border: 1px solid rgba(201, 162, 39, .2);
}
.tag-blue { background: #e8f0f8; color: var(--primary-light); border-color: rgba(29, 68, 104, .15); }
.tag-green { background: #e6f5ee; color: #2d9d78; border-color: rgba(45, 157, 120, .2); }
.tag-gray { background: #eef1f5; color: var(--text-light); border-color: rgba(90, 107, 125, .15); }

/* ===== Header / 导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 24px;
    height: 70px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -1px;
    flex-shrink: 0;
}
.logo span { color: var(--accent); font-weight: 700; }
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: #fff;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    margin-right: 6px;
    line-height: 1;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0 auto;
}
.nav-link {
    position: relative;
    padding: 8px 14px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
    border-radius: 6px;
    white-space: nowrap;
}
.nav-link:hover { color: var(--primary); background: rgba(15, 43, 70, .04); }
.nav-link.active { color: var(--primary); font-weight: 700; }
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    border-radius: 2px;
    background: var(--accent);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 220px;
    padding: 7px 12px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: var(--transition);
}
.search-box:focus-within {
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(201, 162, 39, .15);
}
.search-box i { font-size: 14px; color: var(--text-mute); }
.search-box input {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text);
}
.search-box input::placeholder { color: var(--text-mute); }
.search-kbd {
    display: inline-flex;
    align-items: center;
    padding: 1px 6px;
    border: 1px solid var(--border-dark);
    border-radius: 4px;
    font-size: 11px;
    color: var(--text-mute);
    background: #fff;
    line-height: 1.5;
}
.header-cta { flex-shrink: 0; }

/* 汉堡按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: #fff;
}
.menu-toggle span { display: block; width: 18px; height: 2px; background: var(--primary); border-radius: 2px; transition: var(--transition); }
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.page-hero {
    position: relative;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(8, 28, 46, .92) 0%, rgba(15, 43, 70, .78) 45%, rgba(15, 43, 70, .35) 100%);
}
.hero-inner {
    position: relative;
    padding: 84px 0 72px;
    max-width: 720px;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,.7);
    margin-bottom: 18px;
}
.breadcrumb a { color: rgba(255,255,255,.6); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 12px; }
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(255,255,255,.14);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 16px;
    backdrop-filter: blur(4px);
}
.hero-tag i { font-size: 12px; }
.page-hero h1 {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    color: #fff;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}
.page-hero p {
    font-size: 16px;
    line-height: 1.7;
    color: rgba(255,255,255,.88);
    max-width: 640px;
    margin-bottom: 28px;
}
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.hero-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: rgba(255,255,255,.6);
}
.hero-meta i { color: var(--accent); margin-right: 4px; }

/* ===== 统计条 ===== */
.stat-strip {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 0;
}
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}
.stat-item {
    padding: 28px 24px;
    text-align: center;
    position: relative;
}
.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 30%;
    height: 40%;
    width: 1px;
    background: var(--border);
}
.stat-num {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    letter-spacing: -1px;
}
.stat-num em { font-style: normal; color: var(--accent); font-size: 24px; margin-left: 2px; }
.stat-label { font-size: 13px; color: var(--text-light); margin-top: 8px; }

/* ===== 通用板块 ===== */
.section { padding: var(--space-lg) 0; }
.section-alt { background: var(--bg-white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}
.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}
.section-eyebrow::before {
    content: '';
    width: 18px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}
.section-title {
    font-size: clamp(1.5rem, 2.8vw, 2.1rem);
    font-weight: 800;
    letter-spacing: -0.3px;
    color: var(--primary);
    line-height: 1.25;
}
.section-desc {
    color: var(--text-light);
    font-size: 15px;
    max-width: 560px;
    line-height: 1.7;
    margin-top: 6px;
}
.section-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.section-link:hover { color: var(--accent); gap: 10px; }

/* ===== 卡片通用 ===== */
.card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: rgba(201, 162, 39, .3);
}
.card-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--bg-light);
}
.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.card:hover .card-img img { transform: scale(1.05); }
.card-img .card-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
}
.card-body { padding: 20px; }
.card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
}
.card-title a:hover { color: var(--accent-dark); }
.card-text {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.65;
    margin-bottom: 12px;
}
.card-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 12px;
    color: var(--text-mute);
    padding-top: 12px;
    border-top: 1px solid var(--border);
}
.card-meta i { font-size: 13px; }
.card-meta a { color: var(--primary); font-weight: 600; }
.card-meta a:hover { color: var(--accent); }

/* ===== 留学攻略卡片 ===== */
.study-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.study-card .card-img { aspect-ratio: 16 / 11; }
.study-card .card-body { padding: 17px 18px; }

/* ===== 移民路径 ===== */
.immi-section {
    background: var(--bg-white);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.immi-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.immi-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.immi-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--accent);
    opacity: 0;
    transition: var(--transition);
}
.immi-card:hover {
    background: #fff;
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}
.immi-card:hover::before { opacity: 1; }
.immi-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--primary);
    color: #fff;
    font-size: 20px;
}
.immi-card:nth-child(2) .immi-icon { background: #2d9d78; }
.immi-card:nth-child(3) .immi-icon { background: var(--accent); }
.immi-card:nth-child(4) .immi-icon { background: #7c5cc4; }
.immi-content { flex: 1; min-width: 0; }
.immi-content h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 6px;
}
.immi-content p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.65;
    margin-bottom: 10px;
}
.immi-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.immi-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-top: 8px;
}
.immi-link:hover { color: var(--accent); gap: 9px; }
.immi-link i { font-size: 12px; }

/* ===== 流程 ===== */
.process-section { background: var(--bg-deep); position: relative; overflow: hidden; }
.process-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(201, 162, 39, .08);
}
.process-section::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .04);
}
.process-section .section-title { color: #fff; }
.process-section .section-desc { color: rgba(255,255,255,.6); }
.process-section .section-eyebrow { color: var(--accent); }
.process-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    position: relative;
    z-index: 1;
}
.process-item {
    padding: 24px 18px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
    text-align: center;
}
.process-item:hover {
    background: rgba(255,255,255,.1);
    border-color: var(--accent);
    transform: translateY(-4px);
}
.process-num {
    font-size: 36px;
    font-weight: 800;
    color: rgba(255,255,255,.15);
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -2px;
}
.process-item:hover .process-num { color: rgba(201, 162, 39, .35); }
.process-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    background: rgba(201, 162, 39, .12);
    border-radius: 12px;
    color: var(--accent);
    font-size: 18px;
}
.process-item h4 { color: #fff; font-size: 15px; margin-bottom: 6px; font-weight: 600; }
.process-item p { color: rgba(255,255,255,.55); font-size: 12px; line-height: 1.6; }
.process-arrow {
    position: absolute;
    right: -14px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255,255,255,.2);
    font-size: 14px;
    z-index: 2;
}

/* ===== 热门专题横向滚动 ===== */
.hot-section { overflow: hidden; }
.hot-scroll {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 4px 4px 16px;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: var(--border-dark) transparent;
}
.hot-scroll::-webkit-scrollbar { height: 6px; }
.hot-scroll::-webkit-scrollbar-track { background: transparent; }
.hot-scroll::-webkit-scrollbar-thumb { background: var(--border-dark); border-radius: 3px; }
.hot-card {
    flex: 0 0 280px;
    scroll-snap-align: start;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}
.hot-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.hot-card:nth-child(1) .hot-badge { background: #ff6b6b; }
.hot-card:nth-child(2) .hot-badge { background: #f94d4d; }
.hot-card:nth-child(3) .hot-badge { background: #e03e3e; }
.hot-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 2;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 2px 6px rgba(0,0,0,.15);
}
.hot-cover { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.hot-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.hot-card:hover .hot-cover img { transform: scale(1.06); }
.hot-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 43, 70, .25), transparent 60%);
}
.hot-body {
    padding: 18px 20px 20px;
    position: relative;
    background: #fff;
    margin-top: -10px;
    border-radius: 12px 12px 0 0;
}
.hot-body h3 { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 6px; line-height: 1.4; }
.hot-body p { font-size: 12px; color: var(--text-light); line-height: 1.6; margin-bottom: 10px; }
.hot-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.hot-link:hover { color: var(--accent); gap: 9px; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-white); border-top: 1px solid var(--border); }
.faq-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}
.faq-list details {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    background: #fff;
    transition: var(--transition);
    overflow: hidden;
}
.faq-list details[open] {
    border-color: rgba(201, 162, 39, .35);
    box-shadow: var(--shadow-sm);
}
.faq-list summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary i {
    font-size: 14px;
    color: var(--text-mute);
    transition: var(--transition);
    flex-shrink: 0;
}
.faq-list details[open] summary i { transform: rotate(45deg); color: var(--accent); }
.faq-list details[open] summary { border-bottom: 1px solid var(--border); }
.faq-answer {
    padding: 16px 20px;
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.75;
}
.faq-side h3 { color: var(--primary); font-size: 18px; margin-bottom: 8px; }
.faq-side p { color: var(--text-light); font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.faq-contact {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 20px;
    margin-top: 20px;
    border: 1px dashed var(--border-dark);
}
.faq-contact span { display: block; font-size: 13px; color: var(--text-light); margin-bottom: 8px; }
.faq-contact span i { color: var(--accent); margin-right: 6px; }

/* ===== CTA ===== */
.cta-section {
    padding: 60px 0 80px;
    background: var(--bg);
    position: relative;
}
.cta-box {
    position: relative;
    background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    border-radius: var(--radius-xl);
    overflow: hidden;
    padding: 56px;
    color: #fff;
}
.cta-box::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(8, 28, 46, .95) 0%, rgba(15, 43, 70, .82) 55%, rgba(15, 43, 70, .5) 100%);
}
.cta-content { position: relative; max-width: 560px; }
.cta-content h2 {
    color: #fff;
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 14px;
}
.cta-content p {
    color: rgba(255,255,255,.82);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 24px;
}
.cta-buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-note {
    margin-top: 16px;
    font-size: 13px;
    color: rgba(255,255,255,.58);
}
.cta-note i { color: var(--accent); margin-right: 4px; }

/* ===== 页脚 ===== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,.72);
    padding: 48px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .logo { color: #fff; font-size: 24px; margin-bottom: 14px; font-size: 22px; }
.footer-brand .logo .logo-icon { background: var(--accent); color: var(--primary-dark); }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.62); max-width: 280px; margin-top: 8px; }
.footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
}
.footer-col a {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,.55);
    margin-bottom: 10px;
    transition: var(--transition);
}
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    font-size: 13px;
    color: rgba(255,255,255,.4);
    gap: 16px;
    flex-wrap: wrap;
}
.footer-bottom a { color: rgba(255,255,255,.55); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 焦点状态 ===== */
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .study-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .process-item:nth-child(4), .process-item:nth-child(5) { margin-top: 0; }
    .process-arrow { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-brand p { max-width: 420px; }
    .search-box { width: 170px; }
    .header-cta span { display: none; }
    .header-cta { width: 42px; height: 38px; padding: 0; justify-content: center; }
    .faq-layout { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 768px) {
    .container { padding: 0 18px; }
    .header-inner { height: 62px; gap: 12px; }
    .main-nav {
        position: fixed;
        top: 62px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 12px 18px 18px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        transition: transform .3s ease;
        z-index: 999;
        overflow-y: auto;
        max-height: calc(100vh - 62px);
    }
    .main-nav.open { transform: translateY(0); }
    .nav-link { width: 100%; padding: 12px 14px; font-size: 16px; border-radius: 8px; }
    .nav-link.active { background: var(--accent-light); }
    .nav-link.active::after { display: none; }
    .menu-toggle { display: flex; }
    .search-box { display: none; }
    .header-actions { gap: 8px; }
    .hero-inner { padding: 56px 0 48px; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item:nth-child(2)::after { display: none; }
    .stat-item:nth-child(n+3) { border-top: 1px solid var(--border); }
    .stat-item:nth-child(2n)::after { display: none; }
    .section { padding: 48px 0; }
    .study-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
    .immi-grid { grid-template-columns: 1fr; }
    .immi-card { padding: 18px; }
    .process-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
    .cta-box { padding: 36px 28px; border-radius: 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .footer-bottom { justify-content: center; text-align: center; }
    .hot-card { flex-basis: 240px; }
}

@media (max-width: 520px) {
    .container { padding: 0 14px; }
    .study-grid { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: 1fr; }
    .stat-num { font-size: 26px; }
    .stat-item { padding: 20px 12px; }
    .hero-btns .btn { flex: 1; justify-content: center; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
    .cta-buttons { flex-direction: column; }
    .cta-buttons .btn { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .faq-list summary { font-size: 14px; padding: 14px 16px; }
    .faq-answer { padding: 14px 16px; font-size: 13px; }
    .immi-card { flex-direction: column; }
    .immi-icon { width: 44px; height: 44px; font-size: 17px; }
    .hot-card { flex-basis: 200px; }
}