/* roulang page: index */
:root {
  --primary: #0d1b3e;
  --primary-light: #16295c;
  --accent: #e8a44a;
  --accent-hover: #cf8d35;
  --bg: #f5f7fb;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-light: #5b6b82;
  --border: #e4e8f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow: 0 6px 30px rgba(13, 27, 62, 0.08);
  --shadow-hover: 0 14px 40px rgba(13, 27, 62, 0.14);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --sidebar-width: 260px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input { font-family: inherit; }

.app-shell { display: flex; min-height: 100vh; }
.app-sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, #0a1530 0%, #101f47 100%);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  padding: 32px 20px;
  overflow-y: auto;
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 8px 24px;
  margin-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.brand-icon {
  width: 42px; height: 42px;
  background: var(--accent);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #0a1530;
  flex-shrink: 0;
}
.brand-text {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  letter-spacing: 0.4px;
}
.sidebar-nav { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.72);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: var(--transition);
}
.sidebar-nav a i { width: 20px; text-align: center; font-size: 16px; }
.sidebar-nav a:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
  transform: translateX(3px);
}
.sidebar-nav a.active {
  background: rgba(232, 164, 74, 0.16);
  color: var(--accent);
  border-color: rgba(232, 164, 74, 0.3);
}
.sidebar-footer {
  padding: 20px 8px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.4);
  font-size: 12px;
  text-align: center;
}
.main-wrapper { flex: 1; margin-left: var(--sidebar-width); min-width: 0; }

.mobile-header {
  display: none;
  background: var(--primary);
  color: #fff;
  padding: 14px 20px;
  align-items: center;
  justify-content: space-between;
}
.mobile-header .mobile-logo { font-size: 16px; font-weight: 700; }
.mobile-toggle { background: none; border: none; color: #fff; font-size: 22px; cursor: pointer; }

.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

.hero-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 120px 0 100px;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,21,48,0.92) 0%, rgba(13,27,62,0.72) 60%, rgba(232,164,74,0.25) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 680px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232,164,74,0.18);
  border: 1px solid rgba(232,164,74,0.4);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}
.hero-title {
  font-size: 46px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-brand {
  background: var(--accent);
  color: #0a1530;
  padding: 13px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 15px;
  border: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-brand:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 30px rgba(232,164,74,0.35); }
.btn-outline-light {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.6);
  color: #fff;
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
}
.btn-outline-light:hover { border-color: #fff; background: rgba(255,255,255,0.1); transform: translateY(-2px); }

.section-padding { padding: 90px 0; }
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-title {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-light);
  max-width: 600px;
  line-height: 1.8;
}

.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  height: 100%;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.feature-card:hover::after { transform: scaleX(1); }
.feature-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, rgba(232,164,74,0.2), rgba(232,164,74,0.08));
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  color: var(--accent);
  margin-bottom: 20px;
}
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: var(--primary); }
.feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 0; }

.category-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
  position: relative;
}
.category-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-hover); }
.category-card .card-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}
.category-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover .card-img img { transform: scale(1.06); }
.category-card .card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10,21,48,0.4));
}
.category-card .card-body { padding: 26px 24px 30px; }
.category-card .card-tag {
  position: absolute;
  top: 16px; left: 16px;
  z-index: 2;
  background: rgba(10,21,48,0.75);
  color: #fff;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 12px;
  backdrop-filter: blur(8px);
}
.category-card .card-body h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.category-card .card-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 18px; }
.category-card .card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.category-card .card-link:hover { gap: 12px; color: var(--accent-hover); }

.stat-section {
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 80px 0;
}
.stat-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10,21,48,0.88);
}
.stat-section .container { position: relative; z-index: 2; }
.stat-item { text-align: center; padding: 30px 16px; }
.stat-number {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  font-family: "Inter", "Arial", sans-serif;
}
.stat-label { color: rgba(255,255,255,0.8); font-size: 15px; margin-top: 8px; }

.news-item {
  display: flex;
  gap: 20px;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  margin-bottom: 16px;
}
.news-item:hover { box-shadow: var(--shadow-hover); transform: translateX(4px); }
.news-thumb {
  width: 110px; height: 82px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: #eef1f6;
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-content { flex: 1; min-width: 0; }
.news-content .news-category {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  background: rgba(232,164,74,0.12);
  padding: 2px 10px;
  border-radius: 50px;
  display: inline-block;
  margin-bottom: 6px;
}
.news-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 6px;
}
.news-content p {
  font-size: 13px;
  color: var(--text-light);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 6px;
}
.news-content .news-meta { font-size: 12px; color: #94a3b8; }

.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-bottom: 16px;
  transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-hover); }
.faq-question {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  margin-bottom: 0;
}
.faq-question i { color: var(--accent); font-size: 14px; }
.faq-answer {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin-top: 14px;
  padding-left: 26px;
}

.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  right: -100px; top: -100px;
  width: 300px; height: 300px;
  background: rgba(232,164,74,0.12);
  border-radius: 50%;
}
.cta-section .container { position: relative; z-index: 2; }
.cta-title { font-size: 30px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-desc { font-size: 16px; color: rgba(255,255,255,0.75); margin-bottom: 28px; }

.site-footer {
  background: #0a1530;
  padding: 56px 0 32px;
  color: rgba(255,255,255,0.65);
}
.footer-brand { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-desc { font-size: 13px; line-height: 1.8; max-width: 320px; }
.footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.65); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 40px;
  padding-top: 24px;
  font-size: 13px;
  text-align: center;
  color: rgba(255,255,255,0.4);
}

.empty-tip {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 40px;
  text-align: center;
  color: var(--text-light);
  box-shadow: var(--shadow);
  border: 1px dashed var(--border);
  font-size: 15px;
}

@media (max-width: 991px) {
  .app-sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    width: 280px;
  }
  .app-sidebar.open { transform: translateX(0); }
  .mobile-header { display: flex; }
  .main-wrapper { margin-left: 0; }
  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1030;
  }
  .sidebar-backdrop.open { display: block; }
  .hero-title { font-size: 32px; }
  .section-padding { padding: 60px 0; }
  .section-title { font-size: 26px; }
}
@media (max-width: 575px) {
  .hero-section { padding: 70px 0 60px; }
  .hero-title { font-size: 26px; }
  .hero-subtitle { font-size: 15px; }
  .btn-brand, .btn-outline-light { padding: 11px 24px; font-size: 14px; }
  .stat-number { font-size: 32px; }
  .news-item { flex-direction: column; }
  .news-thumb { width: 100%; height: 160px; }
  .news-content h4 { white-space: normal; }
}

/* roulang page: article */
:root {
    --primary: #0d9488;
    --primary-dark: #0f766e;
    --primary-light: #ccfbf1;
    --bg: #f8fafc;
    --surface: #ffffff;
    --text: #1e293b;
    --muted: #64748b;
    --border: #e2e8f0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
    --sidebar-width: 260px;
    --sidebar-bg: #0f172a;
    --transition: all 0.25s ease;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; }
button, input { font: inherit; }

/* 侧边导航 */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 1040;
    padding: 28px 16px 16px;
    display: flex;
    flex-direction: column;
    box-shadow: 4px 0 20px rgba(2, 6, 23, 0.2);
}
.sidebar-brand {
    font-size: 1.05rem;
    font-weight: 800;
    color: #fff;
    padding: 0 12px 22px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 20px;
    line-height: 1.4;
}
.sidebar-brand a { color: #fff; display: block; }
.sidebar-brand small {
    display: block;
    font-size: 0.72rem;
    color: rgba(255,255,255,0.5);
    font-weight: 400;
    margin-top: 4px;
}
.sidebar-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    color: rgba(255,255,255,0.65);
    font-size: 0.93rem;
    font-weight: 600;
    line-height: 1.2;
    transition: var(--transition);
}
.sidebar-nav a i { width: 20px; text-align: center; font-size: 1rem; }
.sidebar-nav a:hover {
    color: #fff;
    background: rgba(255,255,255,0.06);
    transform: translateX(2px);
}
.sidebar-nav a.active {
    color: #fff;
    background: rgba(13,148,136,0.25);
    box-shadow: inset 0 0 0 1px rgba(13,148,136,0.4);
}
.sidebar-meta {
    margin-top: auto;
    padding: 16px 12px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
    font-size: 0.78rem;
    color: rgba(255,255,255,0.4);
}

/* 主内容 */
.main-wrap {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg);
}
.main-content { flex: 1; }

/* 页面 Banner */
.page-banner {
    background-size: cover;
    background-position: center;
    position: relative;
    padding: 72px 0 48px;
    color: #fff;
    overflow: hidden;
}
.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(2,6,23,0.82), rgba(13,148,136,0.55));
}
.page-banner .container { position: relative; z-index: 2; }
.breadcrumb-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 20px;
}
.breadcrumb-bar a { color: rgba(255,255,255,0.9); }
.breadcrumb-bar a:hover { color: #fff; text-decoration: underline; }
.breadcrumb-bar .sep { opacity: 0.5; }
.page-banner h1 {
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.3;
    margin: 0 0 12px;
    max-width: 800px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.page-banner .banner-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.88rem;
    color: rgba(255,255,255,0.85);
}
.page-banner .banner-meta i { margin-right: 5px; opacity: 0.8; }

/* 文章卡片 */
.article-wrap { padding: 40px 0 60px; }
.article-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 40px 44px;
    border: 1px solid var(--border);
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f1f5f9;
    color: var(--muted);
    font-size: 0.88rem;
}
.article-meta .meta-item { display: flex; align-items: center; gap: 6px; }
.article-meta .badge-cat {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 4px 14px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.8rem;
    display: inline-block;
}
.article-body { font-size: 1.02rem; line-height: 1.9; color: #334155; }
.article-body p { margin-bottom: 1.4em; }
.article-body h2, .article-body h3 {
    margin-top: 2em;
    margin-bottom: 0.8em;
    color: var(--text);
    font-weight: 700;
}
.article-body img { border-radius: var(--radius-md); margin: 1.5em 0; box-shadow: var(--shadow-sm); }
.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: #f0fdfa;
    padding: 16px 20px;
    border-radius: 0 12px 12px 0;
    margin: 1.5em 0;
    color: #0f766e;
}
.article-body ul, .article-body ol {
    padding-left: 1.5em;
    margin-bottom: 1.4em;
}
.article-body a { color: var(--primary-dark); text-decoration: underline; }
.article-tags {
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid #f1f5f9;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}
.article-tags .tag-label {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.85rem;
    margin-right: 4px;
}
.article-tags .tag {
    display: inline-block;
    background: #f8fafc;
    border: 1px solid var(--border);
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.78rem;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
}
.article-tags .tag:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary-dark); }

/* 分享 */
.share-section {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 32px;
}
.share-section span { color: var(--muted); font-size: 0.88rem; font-weight: 600; }
.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
    color: var(--text);
    transition: var(--transition);
    border: none;
    font-size: 0.9rem;
}
.share-btn:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(13,148,136,0.3); }

/* CTA 板块 */
.cta-section {
    margin-top: 40px;
    background: linear-gradient(135deg, #0d9488, #0f172a);
    border-radius: var(--radius-lg);
    padding: 48px;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -20%;
    width: 70%;
    height: 200%;
    background: rgba(255,255,255,0.05);
    transform: rotate(20deg);
}
.cta-section h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.cta-section p { color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto 24px; }
.cta-section .btn-light {
    background: #fff;
    color: var(--primary-dark);
    border: none;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.cta-section .btn-light:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(0,0,0,0.2); }

/* 错误提示 */
.not-found {
    text-align: center;
    padding: 80px 20px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.not-found .icon { font-size: 3rem; color: var(--primary); margin-bottom: 16px; }
.not-found h1 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.not-found p { color: var(--muted); margin-bottom: 24px; }
.not-found .btn-back {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}
.not-found .btn-back:hover { background: var(--primary-dark); transform: translateY(-2px); }

/* 页脚 */
.site-footer {
    background: #0f172a;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 20px;
    font-size: 0.9rem;
}
.footer-brand {
    font-size: 1.25rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
}
.footer-desc { line-height: 1.8; font-size: 0.85rem; color: rgba(255,255,255,0.55); }
.footer-title {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.65); transition: var(--transition); }
.footer-links a:hover { color: #fff; }
.footer-links i { margin-right: 6px; color: var(--primary); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 20px;
    margin-top: 40px;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
}

/* 响应式 */
@media (max-width: 991.98px) {
    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
        flex-direction: row;
        align-items: center;
        padding: 10px 16px;
        overflow-x: auto;
        box-shadow: 0 2px 12px rgba(2,6,23,0.1);
    }
    .sidebar-brand {
        border-bottom: none;
        margin-bottom: 0;
        padding: 0 16px 0 0;
        white-space: nowrap;
        flex-shrink: 0;
    }
    .sidebar-brand { font-size: 0.95rem; }
    .sidebar-nav {
        flex-direction: row;
        flex: 1;
        gap: 4px;
        overflow-x: auto;
        padding-bottom: 2px;
    }
    .sidebar-nav a {
        padding: 8px 14px;
        white-space: nowrap;
        font-size: 0.88rem;
        flex-shrink: 0;
    }
    .sidebar-nav a:hover { transform: none; }
    .sidebar-meta { display: none; }
    .main-wrap { margin-left: 0; }
    .page-banner { padding: 48px 0 36px; }
    .page-banner h1 { font-size: 1.8rem; }
    .article-card { padding: 28px 24px; }
    .cta-section { padding: 36px 24px; }
}

@media (max-width: 575.98px) {
    .sidebar { padding: 8px 12px; }
    .sidebar-brand { display: none; }
    .sidebar-nav a { padding: 8px 12px; font-size: 0.8rem; }
    .page-banner { padding: 36px 0 28px; }
    .page-banner h1 { font-size: 1.5rem; }
    .article-wrap { padding: 24px 0 40px; }
    .article-card { padding: 20px 16px; border-radius: 14px; }
    .article-body { font-size: 0.95rem; line-height: 1.85; }
    .article-meta { gap: 10px; font-size: 0.8rem; }
    .cta-section { padding: 28px 16px; }
    .cta-section h2 { font-size: 1.4rem; }
    .footer-bottom { text-align: center; }
}

/* roulang page: category1 */
:root {
      --primary: #0d1b2a;
      --primary-light: #1b2f45;
      --primary-dark: #070f18;
      --accent: #f97316;
      --accent-dark: #ea580c;
      --accent-light: #fff3e8;
      --bg: #f6f8fb;
      --surface: #ffffff;
      --text: #1e293b;
      --text-light: #64748b;
      --border: #e2e8f0;
      --radius: 16px;
      --radius-sm: 10px;
      --shadow: 0 4px 24px rgba(13, 27, 42, 0.06);
      --shadow-lg: 0 12px 40px rgba(13, 27, 42, 0.12);
      --transition: all 0.3s ease;
      --sidebar-width: 264px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button, input, textarea {
      font-family: inherit;
    }

    .container {
      max-width: 1240px;
    }

    /* 侧边导航 */
    .app-sidebar {
      position: fixed;
      top: 0;
      left: 0;
      width: var(--sidebar-width);
      height: 100vh;
      background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
      padding: 28px 20px;
      display: flex;
      flex-direction: column;
      z-index: 1040;
      box-shadow: 2px 0 20px rgba(0, 0, 0, 0.15);
    }

    .sidebar-brand {
      padding: 14px 12px 24px;
      margin-bottom: 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .sidebar-brand a {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-icon {
      width: 42px;
      height: 42px;
      background: var(--accent);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      color: #fff;
      flex-shrink: 0;
      box-shadow: 0 6px 16px rgba(249, 115, 22, 0.4);
    }

    .brand-text {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      line-height: 1.4;
      letter-spacing: 0.02em;
    }

    .sidebar-nav {
      display: flex;
      flex-direction: column;
      gap: 6px;
      flex: 1;
    }

    .sidebar-nav a {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 13px 16px;
      border-radius: 12px;
      color: rgba(255, 255, 255, 0.75);
      font-size: 15px;
      font-weight: 500;
      transition: var(--transition);
      border: 1px solid transparent;
    }

    .sidebar-nav a i {
      width: 20px;
      text-align: center;
      font-size: 16px;
      opacity: 0.85;
    }

    .sidebar-nav a:hover {
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      transform: translateX(4px);
    }

    .sidebar-nav a.active {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 8px 20px rgba(249, 115, 22, 0.35);
    }

    .sidebar-nav a:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

    .sidebar-footer {
      margin-top: 20px;
      padding: 16px;
      background: rgba(255, 255, 255, 0.05);
      border-radius: 14px;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .sidebar-footer p {
      color: rgba(255, 255, 255, 0.65);
      font-size: 13px;
      margin: 0;
      line-height: 1.6;
    }

    .sidebar-footer strong {
      color: #fff;
      display: block;
      margin-bottom: 4px;
      font-size: 14px;
    }

    /* 主区域 */
    .main-wrapper {
      margin-left: var(--sidebar-width);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* 页面横幅 */
    .page-banner {
      position: relative;
      padding: 96px 0 88px;
      background: linear-gradient(105deg, rgba(7, 15, 24, 0.92) 0%, rgba(13, 27, 42, 0.78) 60%, rgba(27, 47, 69, 0.55) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
      color: #fff;
    }

    .page-banner .breadcrumb {
      display: flex;
      gap: 8px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 20px;
    }

    .page-banner .breadcrumb a {
      color: rgba(255, 255, 255, 0.7);
      transition: var(--transition);
    }

    .page-banner .breadcrumb a:hover {
      color: var(--accent);
    }

    .page-banner h1 {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 20px;
      letter-spacing: 0.02em;
    }

    .page-banner h1 span {
      color: var(--accent);
    }

    .page-banner .lead-text {
      font-size: 17px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.85);
      max-width: 680px;
      margin-bottom: 30px;
    }

    .banner-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      background: rgba(249, 115, 22, 0.18);
      border: 1px solid rgba(249, 115, 22, 0.35);
      border-radius: 50px;
      color: #ffb88a;
      font-size: 14px;
      font-weight: 500;
    }

    .page-banner .breadcrumb i {
      font-size: 12px;
      line-height: 22px;
    }

    /* 通用区块 */
    .section-block {
      padding: 80px 0;
    }

    .section-block.bg-white {
      background: var(--surface);
    }

    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 52px;
    }

    .section-header .section-tag {
      display: inline-block;
      padding: 6px 16px;
      background: var(--accent-light);
      color: var(--accent-dark);
      border-radius: 50px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 14px;
      letter-spacing: 0.02em;
    }

    .section-header h2 {
      font-size: 34px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 14px;
      line-height: 1.3;
      letter-spacing: 0.01em;
    }

    .section-header p {
      color: var(--text-light);
      font-size: 16px;
      line-height: 1.8;
    }

    /* 品牌简介 */
    .brand-intro-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .brand-intro-img {
      position: relative;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .brand-intro-img img {
      width: 100%;
      height: 440px;
      object-fit: cover;
      transition: transform 0.6s ease;
    }

    .brand-intro-img:hover img {
      transform: scale(1.04);
    }

    .brand-intro-img::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(transparent 60%, rgba(13, 27, 42, 0.4));
      pointer-events: none;
      border-radius: 20px;
    }

    .brand-intro-content h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 10px;
      line-height: 1.3;
    }

    .brand-intro-content .sub-title {
      color: var(--accent);
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 22px;
      display: block;
      letter-spacing: 0.02em;
    }

    .brand-intro-content p {
      color: var(--text-light);
      font-size: 15px;
      line-height: 1.9;
      margin-bottom: 18px;
    }

    .brand-values {
      list-style: none;
      margin: 28px 0 0;
      padding: 0;
    }

    .brand-values li {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid var(--border);
      font-size: 15px;
      font-weight: 500;
      color: var(--text);
    }

    .brand-values li:last-child {
      border-bottom: none;
    }

    .brand-values li i {
      width: 32px;
      height: 32px;
      background: var(--accent-light);
      color: var(--accent);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      flex-shrink: 0;
    }

    /* 数据卡片 */
    .stats-section {
      background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
      padding: 70px 0;
      position: relative;
      overflow: hidden;
    }

    .stats-section::before {
      content: '';
      position: absolute;
      top: -60px;
      right: -60px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(249, 115, 22, 0.12);
    }

    .stats-section::after {
      content: '';
      position: absolute;
      bottom: -40px;
      left: 30px;
      width: 140px;
      height: 140px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.04);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
      z-index: 2;
    }

    .stat-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius);
      padding: 32px 24px;
      text-align: center;
      transition: var(--transition);
    }

    .stat-card:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: translateY(-6px);
      border-color: rgba(249, 115, 22, 0.3);
    }

    .stat-card .stat-num {
      font-size: 42px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.2;
      margin-bottom: 8px;
    }

    .stat-card .stat-label {
      color: rgba(255, 255, 255, 0.8);
      font-size: 14px;
      font-weight: 500;
      letter-spacing: 0.02em;
    }

    /* 内容卡片 */
    .content-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .content-card {
      background: var(--surface);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
      height: 100%;
      border: 1px solid var(--border);
    }

    .content-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(249, 115, 22, 0.25);
    }

    .content-card .card-img-wrap {
      position: relative;
      overflow: hidden;
      height: 200px;
    }

    .content-card .card-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.6s ease;
    }

    .content-card:hover .card-img-wrap img {
      transform: scale(1.06);
    }

    .content-card .card-img-wrap::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(transparent 65%, rgba(13, 27, 42, 0.35));
      opacity: 0;
      transition: var(--transition);
    }

    .content-card:hover .card-img-wrap::after {
      opacity: 1;
    }

    .content-card .card-body {
      padding: 26px 24px 28px;
    }

    .content-card .card-tag {
      display: inline-block;
      padding: 5px 14px;
      background: var(--accent-light);
      color: var(--accent-dark);
      border-radius: 50px;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 14px;
    }

    .content-card .card-body h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .content-card .card-body p {
      color: var(--text-light);
      font-size: 14px;
      line-height: 1.8;
      margin-bottom: 16px;
    }

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

    .card-link:hover {
      gap: 12px;
      color: var(--accent-dark);
    }

    /* 时间线 */
    .timeline-section {
      background: var(--bg);
    }

    .timeline {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
      padding: 20px 0;
    }

    .timeline::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 24px;
      width: 3px;
      background: linear-gradient(180deg, var(--accent), var(--primary-light));
      border-radius: 2px;
    }

    .timeline-item {
      position: relative;
      padding-left: 72px;
      margin-bottom: 36px;
    }

    .timeline-item:last-child {
      margin-bottom: 0;
    }

    .timeline-dot {
      position: absolute;
      left: 14px;
      top: 4px;
      width: 24px;
      height: 24px;
      background: var(--accent);
      border: 4px solid #fff;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.3);
      z-index: 2;
    }

    .timeline-item .timeline-content {
      background: var(--surface);
      border-radius: var(--radius);
      padding: 26px 30px;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      transition: var(--transition);
    }

    .timeline-item .timeline-content:hover {
      box-shadow: var(--shadow-lg);
      border-color: rgba(249, 115, 22, 0.2);
    }

    .timeline-item .timeline-time {
      font-size: 13px;
      color: var(--accent);
      font-weight: 700;
      letter-spacing: 0.02em;
      display: block;
      margin-bottom: 6px;
    }

    .timeline-item h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 8px;
    }

    .timeline-item p {
      font-size: 14px;
      color: var(--text-light);
      margin: 0;
      line-height: 1.8;
    }

    /* FAQ */
    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
    }

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

    .faq-item:hover {
      border-color: rgba(249, 115, 22, 0.25);
      box-shadow: var(--shadow);
    }

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

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

    .faq-item summary::after {
      content: '\f078';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      color: var(--accent);
      font-size: 14px;
      transition: var(--transition);
      flex-shrink: 0;
    }

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

    .faq-item summary:hover {
      color: var(--accent-dark);
    }

    .faq-item .faq-body {
      padding: 0 28px 24px;
      color: var(--text-light);
      font-size: 14px;
      line-height: 1.9;
    }

    /* CTA */
    .cta-section {
      background: linear-gradient(105deg, var(--primary-dark) 0%, var(--primary) 100%);
      padding: 70px 0;
      position: relative;
      overflow: hidden;
    }

    .cta-section .container {
      position: relative;
      z-index: 2;
      text-align: center;
    }

    .cta-section h2 {
      color: #fff;
      font-size: 34px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .cta-section p {
      color: rgba(255, 255, 255, 0.75);
      font-size: 16px;
      max-width: 620px;
      margin: 0 auto 32px;
      line-height: 1.8;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: -80px;
      right: -80px;
      width: 320px;
      height: 320px;
      background: url('/assets/images/coverpic/cover-3.png') center center / cover no-repeat;
      opacity: 0.08;
      border-radius: 50%;
    }

    /* 按钮 */
    .btn-brand {
      background: var(--accent);
      color: #fff;
      border: none;
      padding: 14px 36px;
      border-radius: 50px;
      font-size: 15px;
      font-weight: 600;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      box-shadow: 0 8px 24px rgba(249, 115, 22, 0.35);
    }

    .btn-brand:hover {
      background: var(--accent-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(249, 115, 22, 0.45);
    }

    .btn-brand:active {
      transform: translateY(0);
      box-shadow: 0 6px 18px rgba(249, 115, 22, 0.3);
    }

    .btn-brand:focus-visible {
      outline: 3px solid rgba(249, 115, 22, 0.5);
      outline-offset: 3px;
    }

    .btn-outline-light {
      background: transparent;
      color: #fff;
      border: 2px solid rgba(255, 255, 255, 0.4);
      padding: 12px 32px;
      border-radius: 50px;
      font-size: 15px;
      font-weight: 600;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

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

    .btn-outline-light:focus-visible {
      outline: 3px solid rgba(249, 115, 22, 0.5);
      outline-offset: 3px;
    }

    /* 页脚 */
    .site-footer {
      background: var(--primary-dark);
      color: rgba(255, 255, 255, 0.7);
      padding: 68px 0 0;
      margin-top: auto;
    }

    .site-footer .footer-brand {
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .site-footer .footer-desc {
      font-size: 14px;
      line-height: 1.9;
      color: rgba(255, 255, 255, 0.6);
      max-width: 320px;
    }

    .site-footer .footer-title {
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 16px;
      letter-spacing: 0.04em;
    }

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

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

    .site-footer .footer-links a {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

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

    .site-footer .footer-links li i {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
      width: 18px;
    }

    .footer-bottom {
      margin-top: 50px;
      padding: 20px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
      text-align: center;
    }

    /* 响应式 */
    @media (max-width: 1199px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 991px) {
      .app-sidebar {
        position: static;
        width: 100%;
        height: auto;
        padding: 14px 20px;
        flex-direction: row;
        align-items: center;
        gap: 16px;
      }

      .sidebar-brand {
        padding: 0;
        margin: 0;
        border-bottom: none;
        flex-shrink: 0;
      }

      .sidebar-brand a {
        gap: 8px;
      }

      .brand-icon {
        width: 36px;
        height: 36px;
        font-size: 15px;
      }

      .brand-text {
        font-size: 14px;
      }

      .sidebar-nav {
        flex-direction: row;
        gap: 10px;
        overflow-x: auto;
        padding-bottom: 4px;
        flex: 1;
        scrollbar-width: thin;
      }

      .sidebar-nav a {
        padding: 10px 16px;
        gap: 8px;
        font-size: 14px;
        white-space: nowrap;
        border-radius: 10px;
      }

      .sidebar-nav a:hover {
        transform: none;
      }

      .sidebar-footer {
        display: none;
      }

      .main-wrapper {
        margin-left: 0;
      }

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

      .brand-intro-wrap {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .brand-intro-img img {
        height: 340px;
      }

      .page-banner h1 {
        font-size: 36px;
      }
    }

    @media (max-width: 767px) {
      .section-block {
        padding: 56px 0;
      }

      .section-header h2 {
        font-size: 26px;
      }

      .page-banner {
        padding: 56px 0 48px;
      }

      .page-banner h1 {
        font-size: 30px;
      }

      .page-banner .lead-text {
        font-size: 15px;
      }

      .content-cards-grid {
        grid-template-columns: 1fr;
      }

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
      }

      .stat-card {
        padding: 24px 16px;
      }

      .stat-card .stat-num {
        font-size: 32px;
      }

      .timeline-item {
        padding-left: 60px;
      }

      .timeline-item .timeline-content {
        padding: 20px;
      }

      .faq-item summary {
        padding: 18px 20px;
        font-size: 15px;
      }

      .faq-item .faq-body {
        padding: 0 20px 20px;
      }

      .cta-section h2 {
        font-size: 26px;
      }

      .brand-intro-content h2 {
        font-size: 26px;
      }

      .site-footer .row {
        gap: 30px;
      }
    }

    @media (max-width: 520px) {
      .app-sidebar {
        padding: 12px 14px;
        flex-wrap: wrap;
      }

      .sidebar-brand {
        width: 100%;
        margin-bottom: 10px;
      }

      .brand-text {
        font-size: 15px;
      }

      .sidebar-nav a {
        font-size: 13px;
        padding: 9px 12px;
      }

      .page-banner {
        padding: 44px 0 40px;
      }

      .page-banner h1 {
        font-size: 26px;
      }

      .page-banner .lead-text {
        font-size: 14px;
      }

      .stat-card .stat-num {
        font-size: 28px;
      }

      .stat-card .stat-label {
        font-size: 13px;
      }

      .section-header h2 {
        font-size: 23px;
      }

      .content-card .card-body {
        padding: 22px 20px;
      }

      .brand-intro-img img {
        height: 260px;
      }

      .timeline::before {
        left: 16px;
      }

      .timeline-dot {
        left: 8px;
        width: 20px;
        height: 20px;
      }

      .timeline-item {
        padding-left: 48px;
      }

      .btn-brand, .btn-outline-light {
        padding: 12px 26px;
        font-size: 14px;
      }
    }

/* roulang page: category2 */
:root{
  --primary:#0d1b2a;
  --primary-light:#1b2c3f;
  --accent:#e8a33d;
  --accent-hover:#d4912a;
  --bg:#f4f6f9;
  --bg-alt:#eef1f5;
  --card-bg:#ffffff;
  --text:#1a1f2e;
  --text-muted:#6c757d;
  --border:#e3e8ef;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 30px rgba(13,27,42,.08);
  --shadow-lg:0 16px 48px rgba(13,27,42,.14);
  --transition:.28s cubic-bezier(.4,0,.2,1);
  --sidebar-width:260px;
  --font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font-family:inherit}
.container-page{max-width:1440px;margin:0 auto;padding:0 24px}

/* ===== Sidebar Layout ===== */
.site-shell{display:flex;min-height:100vh}
.sidebar{
  width:var(--sidebar-width);
  background:linear-gradient(180deg,var(--primary) 0%,var(--primary-light) 100%);
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:1040;
  display:flex;
  flex-direction:column;
  padding:28px 20px;
  overflow-y:auto;
  transition:transform .3s ease;
}
.sidebar-logo{
  display:flex;align-items:center;gap:12px;
  color:#fff;
  font-size:18px;font-weight:700;
  padding:8px 10px 22px;
  border-bottom:1px solid rgba(255,255,255,.1);
  margin-bottom:22px;
}
.sidebar-logo i{font-size:26px;color:var(--accent)}
.sidebar-nav{
  display:flex;flex-direction:column;gap:6px;
}
.sidebar-nav a{
  display:flex;align-items:center;gap:14px;
  padding:14px 18px;
  border-radius:12px;
  color:rgba(255,255,255,.78);
  font-size:15px;
  font-weight:500;
  transition:all var(--transition);
  border-left:3px solid transparent;
}
.sidebar-nav a i{width:22px;text-align:center;font-size:17px}
.sidebar-nav a:hover{
  background:rgba(255,255,255,.08);
  color:#fff;
  transform:translateX(4px);
}
.sidebar-nav a.active{
  background:rgba(232,163,61,.16);
  color:var(--accent);
  border-left-color:var(--accent);
  font-weight:600;
}
.sidebar-info{
  margin-top:auto;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.5);
  font-size:12px;
  line-height:1.8;
}
.main-content{
  flex:1;
  margin-left:var(--sidebar-width);
  min-width:0;
}

/* ===== Mobile Topbar ===== */
.mobile-topbar{
  display:none;
  position:sticky;top:0;z-index:1030;
  background:var(--primary);
  padding:14px 20px;
  align-items:center;justify-content:space-between;
  box-shadow:0 4px 20px rgba(0,0,0,.2);
}
.mobile-topbar .m-logo{
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;gap:10px;
}
.mobile-topbar .m-logo i{color:var(--accent)}
.menu-toggle{
  background:transparent;border:none;color:#fff;
  font-size:22px;cursor:pointer;
  width:42px;height:42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:8px;
}
.menu-toggle:hover{background:rgba(255,255,255,.1)}

/* ===== Hero ===== */
.page-hero{
  position:relative;
  padding:110px 0 80px;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  background-attachment:fixed;
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(13,27,42,.92) 0%,rgba(13,27,42,.72) 50%,rgba(13,27,42,.38) 100%);
}
.page-hero .container-page{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(232,163,61,.2);
  border:1px solid rgba(232,163,61,.45);
  color:var(--accent);
  padding:8px 20px;
  border-radius:40px;
  font-size:13px;
  font-weight:600;
  margin-bottom:22px;
  letter-spacing:1px;
}
.page-hero h1{
  font-size:48px;
  font-weight:800;
  line-height:1.2;
  margin-bottom:20px;
  letter-spacing:2px;
}
.page-hero h1 span{color:var(--accent)}
.page-hero p.hero-sub{
  font-size:17px;
  color:rgba(255,255,255,.9);
  max-width:640px;
  margin-bottom:34px;
  line-height:1.8;
}
.btn-hero{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--accent);
  color:#fff;
  border:none;
  padding:15px 38px;
  font-size:16px;
  font-weight:600;
  border-radius:50px;
  transition:all var(--transition);
  box-shadow:0 8px 30px rgba(232,163,61,.35);
}
.btn-hero:hover{
  background:var(--accent-hover);
  transform:translateY(-3px);
  box-shadow:0 14px 40px rgba(232,163,61,.45);
  color:#fff;
}
.btn-outline-hero{
  display:inline-flex;align-items:center;gap:10px;
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.4);
  padding:14px 32px;
  font-size:15px;
  font-weight:500;
  border-radius:50px;
  transition:all var(--transition);
  margin-left:14px;
}
.btn-outline-hero:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.hero-stats{
  display:flex;
  gap:40px;
  margin-top:56px;
  padding-top:34px;
  border-top:1px solid rgba(255,255,255,.16);
  flex-wrap:wrap;
}
.hero-stats .stat-item{text-align:left}
.hero-stats .stat-num{
  font-size:36px;font-weight:800;
  color:var(--accent);
  line-height:1;
  display:block;
  margin-bottom:6px;
}
.hero-stats .stat-label{
  font-size:13px;
  color:rgba(255,255,255,.75);
  letter-spacing:.5px;
}

/* ===== Section Base ===== */
.section{
  padding:90px 0;
}
.section-alt{
  background:var(--bg-alt);
}
.section-head{
  text-align:center;
  margin-bottom:56px;
}
.section-head .sec-tag{
  display:inline-block;
  background:rgba(232,163,61,.12);
  color:var(--accent);
  font-size:13px;
  font-weight:600;
  padding:7px 20px;
  border-radius:30px;
  letter-spacing:1px;
  margin-bottom:14px;
}
.section-head h2{
  font-size:36px;
  font-weight:800;
  margin-bottom:14px;
  color:var(--text);
  letter-spacing:1px;
}
.section-head p{
  color:var(--text-muted);
  max-width:640px;
  margin:0 auto;
  font-size:16px;
  line-height:1.8;
}
/* divider line */
.section-head::after{
  content:'';
  display:block;
  width:54px;height:3px;
  background:var(--accent);
  margin:18px auto 0;
  border-radius:3px;
}

/* ===== Card Base ===== */
.card-modern{
  background:var(--card-bg);
  border-radius:var(--radius);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:transform var(--transition),box-shadow var(--transition);
  overflow:hidden;
  height:100%;
}
.card-modern:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}

/* ===== Data Overview ===== */
.data-grid .card-modern{
  padding:36px 30px;
  text-align:center;
}
.data-icon{
  width:62px;height:62px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 20px;
  font-size:24px;
}
.data-icon.bg-gold{background:rgba(232,163,61,.15);color:var(--accent)}
.data-icon.bg-blue{background:rgba(13,27,42,.1);color:var(--primary)}
.data-icon.bg-green{background:rgba(25,135,84,.15);color:#198754}
.data-icon.bg-purple{background:rgba(108,79,186,.15);color:#6c4fba}
.data-grid .data-num{
  font-size:34px;
  font-weight:800;
  color:var(--text);
  display:block;
  line-height:1.2;
}
.data-grid .data-label{
  color:var(--text-muted);
  font-size:14px;
  margin-top:8px;
  display:block;
}

/* ===== Category Cards ===== */
.category-grid .card-modern{
  position:relative;
  min-height:300px;
  display:flex;
  align-items:flex-end;
  background-size:cover;
  background-position:center;
  cursor:pointer;
}
.category-grid .card-modern::before{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,27,42,0) 30%,rgba(13,27,42,.82) 100%);
  transition:opacity var(--transition);
}
.category-grid .card-modern::after{
  content:'\f054';
  font-family:'Font Awesome 6 Free';
  font-weight:900;
  position:absolute;
  top:20px;right:20px;
  width:44px;height:44px;
  background:rgba(255,255,255,.15);
  backdrop-filter:blur(10px);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;
  opacity:0;
  transform:translateY(10px);
  transition:all var(--transition);
}
.category-grid .card-modern:hover::after{
  opacity:1;transform:translateY(0);
  background:var(--accent);
}
.category-grid .cat-content{
  position:relative;
  z-index:2;
  padding:26px;
  width:100%;
}
.category-grid .cat-content .cat-type{
  display:inline-block;
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:4px 14px;
  border-radius:30px;
  margin-bottom:12px;
  letter-spacing:.5px;
}
.category-grid .cat-content h3{
  color:#fff;
  font-size:20px;
  font-weight:700;
  margin-bottom:8px;
}
.category-grid .cat-content p{
  color:rgba(255,255,255,.75);
  font-size:14px;
  line-height:1.6;
}

/* ===== News ===== */
.news-feature-card{
  background:var(--card-bg);
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  margin-bottom:24px;
  transition:transform var(--transition),box-shadow var(--transition);
  height:100%;
}
.news-feature-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
}
.news-feature-card .news-img{overflow:hidden}
.news-feature-card .news-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.news-feature-card:hover .news-img img{transform:scale(1.06)}
.news-feature-card .news-body{padding:26px}
.news-badge{
  display:inline-block;
  background:rgba(232,163,61,.14);
  color:var(--accent);
  padding:4px 12px;
  border-radius:4px;
  font-size:12px;
  font-weight:600;
  margin-bottom:12px;
}
.news-feature-card h3{
  font-size:20px;
  font-weight:700;
  margin-bottom:12px;
  line-height:1.5;
}
.news-feature-card h3 a{color:var(--text);transition:color var(--transition)}
.news-feature-card h3 a:hover{color:var(--accent)}
.news-feature-card .news-meta{
  font-size:13px;
  color:var(--text-muted);
  display:flex;gap:18px;
}
.news-feature-card .news-meta i{margin-right:6px;color:var(--accent)}
.news-list-card{
  display:flex;
  gap:16px;
  padding:16px 0;
  border-bottom:1px solid var(--border);
  align-items:center;
  transition:padding-left var(--transition);
}
.news-list-card:hover{padding-left:8px}
.news-list-card .list-img{
  width:110px;height:76px;
  border-radius:8px;
  overflow:hidden;
  flex-shrink:0;
}
.news-list-card .list-img img{width:100%;height:100%;object-fit:cover}
.news-list-card .list-text h4{
  font-size:15px;
  font-weight:600;
  margin-bottom:5px;
  line-height:1.5;
}
.news-list-card .list-text h4 a{color:var(--text);transition:color var(--transition)}
.news-list-card .list-text h4 a:hover{color:var(--accent)}
.news-list-card .list-text time{
  font-size:12px;color:var(--text-muted);
  display:flex;align-items:center;gap:5px;
}

/* ===== Timeline ===== */
.timeline{
  position:relative;
  padding-left:40px;
}
.timeline::before{
  content:'';
  position:absolute;
  left:16px;top:6px;bottom:6px;
  width:2px;
  background:linear-gradient(180deg,var(--accent),rgba(232,163,61,.1));
}
.timeline-item{
  position:relative;
  padding-bottom:38px;
  padding-left:8px;
}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:'';
  position:absolute;
  left:-33px;top:6px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--accent);
  border:3px solid #fff;
  box-shadow:0 0 0 3px rgba(232,163,61,.25);
  z-index:1;
}
.timeline-item h4{
  font-size:18px;font-weight:700;
  margin-bottom:8px;
  color:var(--text);
}
.timeline-item p{
  color:var(--text-muted);
  font-size:14px;
  line-height:1.7;
  margin-bottom:6px;
}
.timeline-item .tl-tag{
  font-size:12px;
  color:var(--accent);
  font-weight:600;
}

/* ===== FAQ ===== */
.faq-accordion .accordion-item{
  border:1px solid var(--border);
  border-radius:14px !important;
  margin-bottom:16px;
  overflow:hidden;
  box-shadow:0 2px 12px rgba(13,27,42,.04);
}
.faq-accordion .accordion-button{
  padding:22px 26px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  background:#fff;
  box-shadow:none;
  transition:color var(--transition),background var(--transition);
}
.faq-accordion .accordion-button:not(.collapsed){
  background:rgba(232,163,61,.08);
  color:var(--primary);
  box-shadow:none;
}
.faq-accordion .accordion-button:focus{
  box-shadow:0 0 0 3px rgba(232,163,61,.25);
  border-radius:14px;
}
.faq-accordion .accordion-button::after{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23e8a33d'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.faq-accordion .accordion-body{
  padding:20px 26px 26px;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.8;
  background:#fff;
  border-top:1px solid var(--border);
}

/* ===== CTA ===== */
.cta-section{
  position:relative;
  padding:90px 0;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  background-attachment:fixed;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(13,27,42,.96) 0%,rgba(13,27,42,.82) 60%,rgba(232,163,61,.25) 100%);
}
.cta-section .container-page{position:relative;z-index:2}
.cta-box{
  text-align:center;
  color:#fff;
  max-width:720px;
  margin:0 auto;
}
.cta-box h2{
  font-size:38px;
  font-weight:800;
  margin-bottom:18px;
  letter-spacing:1px;
}
.cta-box h2 span{color:var(--accent)}
.cta-box p{
  font-size:16px;
  color:rgba(255,255,255,.85);
  margin-bottom:36px;
  line-height:1.8;
}
.cta-box .btn-cta{
  background:var(--accent);
  color:#fff;
  border:none;
  padding:16px 48px;
  font-size:16px;
  font-weight:600;
  border-radius:50px;
  transition:all var(--transition);
  box-shadow:0 10px 40px rgba(232,163,61,.4);
  display:inline-flex;align-items:center;gap:10px;
}
.cta-box .btn-cta:hover{
  background:#fff;
  color:var(--primary);
  transform:translateY(-4px);
  box-shadow:0 16px 50px rgba(255,255,255,.25);
}

/* ===== Footer ===== */
.site-footer{
  background:var(--primary);
  color:rgba(255,255,255,.8);
  padding:70px 0 0;
  margin-left:var(--sidebar-width);
}
.footer-brand{
  font-size:20px;
  font-weight:700;
  color:#fff;
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;
}
.footer-brand i{color:var(--accent);font-size:24px}
.footer-desc{
  font-size:14px;
  color:rgba(255,255,255,.6);
  line-height:1.8;
  margin-bottom:0;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
  position:relative;
  padding-bottom:10px;
}
.footer-title::after{
  content:'';
  position:absolute;
  left:0;bottom:0;
  width:26px;height:2px;
  background:var(--accent);
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{
  margin-bottom:10px;
  font-size:14px;
  display:flex;
  align-items:center;
  gap:8px;
  color:rgba(255,255,255,.6);
}
.footer-links li i{color:var(--accent);font-size:13px}
.footer-links a{
  color:rgba(255,255,255,.6);
  transition:color var(--transition),padding-left var(--transition);
}
.footer-links a:hover{
  color:var(--accent);
  padding-left:4px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:50px;
  padding:22px 0;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ===== Responsive ===== */
@media (max-width: 991.98px){
  .sidebar{
    transform:translateX(-100%);
    width:280px;
    box-shadow:4px 0 30px rgba(0,0,0,.2);
  }
  .sidebar.open{transform:translateX(0)}
  .mobile-topbar{display:flex}
  .main-content{margin-left:0}
  .site-footer{margin-left:0}
  .page-hero{padding:70px 0 60px}
  .page-hero h1{font-size:34px}
  .data-grid .col-md-6{margin-bottom:20px}
}
@media (max-width: 767.98px){
  .section{padding:64px 0}
  .section-head h2{font-size:28px}
  .page-hero h1{font-size:28px}
  .hero-stats{gap:20px;margin-top:38px}
  .hero-stats .stat-num{font-size:28px}
  .hero-btns .btn-hero,.hero-btns .btn-outline-hero{
    display:flex;
    justify-content:center;
    width:100%;
    margin:0 0 12px 0;
  }
  .cta-box h2{font-size:26px}
  .footer-brand{font-size:18px}
}
@media (max-width: 520px){
  .container-page{padding:0 16px}
  .page-hero{padding:56px 0 44px}
  .category-grid .card-modern{min-height:220px}
  .news-list-card .list-img{width:90px;height:64px}
  .timeline{padding-left:28px}
}

/* roulang page: category3 */
:root {
            --primary: #0b1a2a;
            --primary-light: #132b42;
            --accent: #2dd4bf;
            --accent-dark: #149b8f;
            --gold: #f5b04c;
            --bg-body: #f5f7fa;
            --bg-soft: #eef3f6;
            --text-main: #1e293b;
            --text-muted: #56657a;
            --text-light: #8b98aa;
            --border: #e3e9f0;
            --white: #ffffff;
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 26px;
            --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 12px 28px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.12);
            --sidebar-width: 260px;
            --transition: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-body);
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        :focus-visible {
            outline: 3px solid rgba(45, 212, 191, 0.55);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            max-width: 1240px;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* ===== 左侧 App Shell ===== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: linear-gradient(180deg, #081420 0%, var(--primary-light) 100%);
            z-index: 1060;
            display: flex;
            flex-direction: column;
            padding: 28px 18px 24px;
            transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 8px 10px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 22px;
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #ffffff;
            font-size: 17px;
            font-weight: 800;
            letter-spacing: 0.3px;
            line-height: 1.35;
        }

        .sidebar-logo .logo-badge {
            flex: 0 0 40px;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), #4f8df7);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 6px 16px rgba(45, 212, 191, 0.3);
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: 14px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 15px;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
        }

        .sidebar-nav a i {
            width: 22px;
            text-align: center;
            font-size: 16px;
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.07);
            color: #ffffff;
            transform: translateX(4px);
        }

        .sidebar-nav a.active {
            background: linear-gradient(90deg, rgba(45, 212, 191, 0.22), rgba(45, 212, 191, 0.06));
            color: #ffffff;
            box-shadow: inset 0 0 0 1px rgba(45, 212, 191, 0.25);
        }

        .sidebar-nav a.active::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 22px;
            border-radius: 0 4px 4px 0;
            background: var(--accent);
        }

        .app-main {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .app-overlay {
            position: fixed;
            inset: 0;
            background: rgba(8, 20, 32, 0.6);
            z-index: 1050;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.4s ease, visibility 0.4s ease;
            backdrop-filter: blur(4px);
        }

        .app-overlay.show {
            opacity: 1;
            visibility: visible;
        }

        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 1040;
            background: rgba(11, 26, 42, 0.92);
            backdrop-filter: blur(12px);
            padding: 14px 20px;
            align-items: center;
            gap: 14px;
            color: #fff;
        }

        .mobile-topbar .menu-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 18px;
            transition: background var(--transition);
        }

        .mobile-topbar .menu-btn:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        .mobile-logo {
            font-size: 16px;
            font-weight: 800;
            color: #fff;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            min-height: 440px;
            display: flex;
            align-items: center;
            padding: 90px 0 80px;
            background: linear-gradient(120deg, rgba(8, 20, 33, 0.92) 0%, rgba(11, 32, 48, 0.78) 55%, rgba(13, 45, 52, 0.62) 100%),
                url("/assets/images/backpic/back-2.png") center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            right: 6%;
            bottom: -40px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(45, 212, 191, 0.25), transparent 70%);
            pointer-events: none;
        }

        .hero-inner {
            max-width: 640px;
            animation: heroFadeUp 0.7s ease both;
        }

        @keyframes heroFadeUp {
            from {
                opacity: 0;
                transform: translateY(28px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: #d8fdf6;
            margin-bottom: 22px;
            backdrop-filter: blur(4px);
        }

        .page-hero h1 {
            font-size: clamp(32px, 5vw, 50px);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 18px;
        }

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

        .page-hero .hero-desc {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 30px;
            max-width: 560px;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .breadcrumb-custom span {
            color: var(--accent);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 700;
            transition: all 0.3s ease;
            border: 0;
        }

        .btn-primary {
            background: var(--accent);
            color: #052416;
            box-shadow: 0 8px 24px rgba(45, 212, 191, 0.3);
        }

        .btn-primary:hover {
            background: #3ee5c9;
            color: #052416;
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(45, 212, 191, 0.4);
        }

        .btn-outline-light {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            transform: translateY(-2px);
            border-color: rgba(255, 255, 255, 0.6);
        }

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

        .section-head {
            margin-bottom: 48px;
            max-width: 700px;
        }

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-dark);
            background: rgba(45, 212, 191, 0.1);
            padding: 6px 16px;
            border-radius: 50px;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(26px, 3.2vw, 38px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ===== About ===== */
        .about-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            height: 100%;
            box-shadow: var(--shadow-sm);
        }

        .about-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            height: 100%;
            min-height: 340px;
            box-shadow: var(--shadow-md);
        }

        .about-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .about-img-wrap:hover img {
            transform: scale(1.04);
        }

        .about-img-wrap .img-caption {
            position: absolute;
            left: 20px;
            bottom: 20px;
            background: rgba(11, 26, 42, 0.72);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 50px;
        }

        .about-points {
            list-style: none;
            padding: 0;
            margin: 22px 0 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .about-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.6;
        }

        .about-points li i {
            flex: 0 0 22px;
            width: 22px;
            height: 22px;
            margin-top: 4px;
            border-radius: 50%;
            background: rgba(45, 212, 191, 0.12);
            color: var(--accent-dark);
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== Topic Cards ===== */
        .topic-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: transform 0.35s ease, box-shadow 0.35s ease;
        }

        .topic-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .topic-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .topic-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .topic-card:hover .card-img img {
            transform: scale(1.08);
        }

        .topic-card .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(11, 26, 42, 0.55));
        }

        .topic-card .card-body {
            padding: 24px 24px 28px;
        }

        .topic-card .card-number {
            font-size: 14px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

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

        .topic-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }

        .badge-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            background: var(--bg-soft);
            color: var(--text-muted);
            border: 1px solid var(--border);
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, #0b1a2a 0%, #10283d 100%);
            padding: 70px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            border: 40px solid rgba(255, 255, 255, 0.04);
        }

        .stats-section::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            border: 30px solid rgba(45, 212, 191, 0.06);
        }

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

        .stat-item {
            text-align: center;
            padding: 20px 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            backdrop-filter: blur(6px);
        }

        .stat-number {
            font-size: clamp(34px, 4vw, 52px);
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .stat-number small {
            font-size: 20px;
            font-weight: 700;
            margin-left: 2px;
        }

        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 6px;
        }

        /* ===== Content List ===== */
        .content-list-wrap {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .content-item {
            display: flex;
            gap: 22px;
            align-items: center;
            padding: 24px 28px;
            border-bottom: 1px solid var(--border);
            transition: background 0.3s ease;
        }

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

        .content-item:hover {
            background: #f8fbfc;
        }

        .content-thumb {
            flex: 0 0 160px;
            width: 160px;
            height: 100px;
            border-radius: 14px;
            overflow: hidden;
            background: var(--bg-soft);
        }

        .content-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .content-info {
            flex: 1;
            min-width: 0;
        }

        .content-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }

        .content-date {
            font-size: 12px;
            color: var(--text-light);
        }

        .content-info h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .content-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== Scene ===== */
        .scene-section {
            position: relative;
            padding: 90px 0;
            background: linear-gradient(120deg, rgba(11, 26, 42, 0.9) 0%, rgba(15, 42, 58, 0.8) 100%),
                url("/assets/images/backpic/back-3.png") center / cover no-repeat fixed;
            color: #fff;
        }

        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .scene-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .scene-item:hover {
            transform: translateY(-6px);
            background: rgba(255, 255, 255, 0.1);
        }

        .scene-item i {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .scene-item h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .scene-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
            margin-bottom: 0;
        }

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

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }

        .faq-item.active {
            box-shadow: var(--shadow-md);
            border-color: rgba(45, 212, 191, 0.35);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            text-align: left;
            transition: color 0.3s ease;
        }

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

        .faq-question i {
            font-size: 14px;
            color: var(--text-light);
            transition: transform 0.35s ease, color 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            border-top: 1px dashed var(--border);
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 90px 0;
            background: #fff;
            position: relative;
        }

        .cta-card {
            background: linear-gradient(120deg, #0b1a2a, #123144);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-card::after {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(45, 212, 191, 0.18);
        }

        .cta-card h2 {
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-card p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0;
            max-width: 520px;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: #07121d;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 22px;
            margin-top: auto;
        }

        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 0;
            max-width: 300px;
        }

        .site-footer .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .site-footer .footer-links li {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.55);
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.3s ease, padding-left 0.3s ease;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 28px;
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .app-sidebar {
                transform: translateX(-100%);
                box-shadow: 8px 0 40px rgba(0, 0, 0, 0.25);
            }

            .app-sidebar.open {
                transform: translateX(0);
            }

            .app-main {
                margin-left: 0;
            }

            .mobile-topbar {
                display: flex;
            }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .section-block {
                padding: 56px 0;
            }

            .page-hero {
                min-height: 380px;
                padding: 70px 0 60px;
            }

            .content-item {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
            }

            .content-thumb {
                flex: none;
                width: 100%;
                height: 180px;
            }

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

            .cta-card {
                padding: 36px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .topic-card .card-img {
                height: 170px;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .page-hero .hero-desc {
                font-size: 15px;
            }

            .hero-btns .btn {
                width: 100%;
                justify-content: center;
                padding: 12px 18px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .stat-number {
                font-size: 30px;
            }

            .stat-label {
                font-size: 13px;
            }

            .content-thumb {
                height: 140px;
            }

            .content-info h3 {
                font-size: 16px;
            }

            .card-tags {
                gap: 6px;
            }

            .footer-bottom {
                font-size: 12px;
            }
        }