/* roulang page: index */
:root {
  --primary: #174a7a;
  --primary-light: #2b6a9e;
  --primary-dark: #0e3455;
  --accent: #e8a840;
  --accent-light: #f4c56a;
  --bg: #f5f7fa;
  --surface: #ffffff;
  --text: #1c2d3d;
  --text-muted: #5f7180;
  --border: #e3e8ee;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(20, 40, 60, 0.06);
  --shadow: 0 8px 30px rgba(20, 40, 60, 0.10);
  --shadow-lg: 0 16px 48px rgba(20, 40, 60, 0.14);
  --container: 1200px;
  --gap: 24px;
  --transition: 0.28s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; border-radius: var(--radius-sm); }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }

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

/* ===== Header / 双层导航 ===== */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--container);
  margin: 0 auto;
}
.brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand i { color: var(--accent); font-size: 20px; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-search {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 7px 16px;
  gap: 8px;
  width: 240px;
  transition: border-color var(--transition);
}
.header-search:focus-within { border-color: var(--primary-light); background: #fff; }
.header-search input { border: none; background: transparent; flex: 1; font-size: 14px; color: var(--text); }
.header-search input::placeholder { color: var(--text-muted); }
.header-search i { color: var(--text-muted); font-size: 14px; }
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  padding: 10px 22px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 4px 14px rgba(23, 74, 122, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(23, 74, 122, 0.4); }
.btn-cta:active { transform: translateY(0); }
.btn-cta:focus-visible { outline: 3px solid rgba(232, 168, 64, 0.5); outline-offset: 2px; }

.header-nav {
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.nav-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 10px 24px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.nav-tabs::-webkit-scrollbar { height: 4px; }
.nav-tabs::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.nav-tab:hover { color: var(--primary); background: #f0f4f8; }
.nav-tab.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(23, 74, 122, 0.25);
}
.nav-tab.active i { color: var(--accent-light); }
.nav-tab i { font-size: 13px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 120px 0 140px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10, 32, 54, 0.92) 0%, rgba(20, 60, 96, 0.78) 50%, rgba(10, 32, 54, 0.55) 100%);
}
.hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero-badge i { color: var(--accent-light); }
.hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: 1px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}
.hero p.lead {
  font-size: 19px;
  line-height: 1.8;
  max-width: 620px;
  margin-bottom: 36px;
  opacity: 0.92;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--primary);
  padding: 13px 30px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18); }
.btn-light:active { transform: translateY(0); }
.btn-outline-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  padding: 13px 30px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition);
}
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.1); border-color: #fff; }
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  flex-wrap: wrap;
}
.hero-stat h3 { font-size: 36px; font-weight: 800; line-height: 1.2; color: #fff; }
.hero-stat p { font-size: 14px; opacity: 0.75; margin-top: 4px; }

/* ===== Section base ===== */
.section { padding: 90px 0; }
.section-alt { background: var(--surface); }
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.section-header .tag {
  display: inline-block;
  background: rgba(232, 168, 64, 0.1);
  color: var(--accent);
  font-weight: 600;
  font-size: 13px;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.section-header h2 {
  font-size: 38px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-header p { font-size: 17px; color: var(--text-muted); line-height: 1.8; }

/* ===== Cards grid ===== */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-icon {
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  font-size: 22px;
  margin-bottom: 18px;
}

/* ===== 分类入口 ===== */
.cat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.cat-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.cat-card img { width: 100%; height: 200px; object-fit: cover; border-radius: 0; }
.cat-card-body { padding: 24px 28px 28px; }
.cat-card-body h3 { font-size: 22px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.cat-card-body p { font-size: 15px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.cat-card-body .link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
}
.cat-card-body .link i { transition: transform var(--transition); }
.cat-card:hover .link i { transform: translateX(4px); }

/* ===== 资讯列表 ===== */
.news-list { max-width: 1000px; margin: 0 auto; }
.news-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px 28px;
  border: 1px solid var(--border);
  margin-bottom: 16px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.news-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.news-date {
  flex-shrink: 0;
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  text-align: center;
  min-width: 72px;
}
.news-date .day { display: block; font-size: 22px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.news-date .month { display: block; font-size: 12px; color: var(--text-muted); }
.news-content { flex: 1; }
.news-content h3 { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 6px; line-height: 1.4; }
.news-content h3 a:hover { color: var(--primary); }
.news-content p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 10px; }
.news-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.news-tag {
  display: inline-flex;
  align-items: center;
  background: #f0f4f8;
  color: var(--primary-light);
  border-radius: 16px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
}
.news-tag.accent { background: rgba(232, 168, 64, 0.12); color: #a6770e; }
.empty-tip {
  text-align: center;
  padding: 48px 24px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  color: var(--text-muted);
  font-size: 16px;
}

/* ===== 数据统计 ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 32px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.stat-card h3 { font-size: 40px; font-weight: 800; color: var(--primary); line-height: 1.2; margin-bottom: 6px; }
.stat-card p { font-size: 14px; color: var(--text-muted); }

/* ===== 流程排版 ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.step-item { position: relative; background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); padding: 30px 24px; box-shadow: var(--shadow-sm); }
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  border-radius: 50%;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 16px;
}
.step-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.step-item p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ===== FAQ ===== */
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  gap: 16px;
}
.faq-question i {
  color: var(--primary);
  font-size: 16px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 15px; color: var(--text-muted); line-height: 1.75; }

/* ===== CTA 板块 ===== */
.cta-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 100px 0;
  color: #fff;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(14, 52, 85, 0.88); }
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 { font-size: 42px; font-weight: 800; margin-bottom: 16px; }
.cta-section p { font-size: 18px; opacity: 0.9; max-width: 640px; margin: 0 auto 32px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
  background: #0e2d46;
  color: rgba(255, 255, 255, 0.75);
  padding: 70px 0 30px;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand h4 { color: #fff; font-size: 22px; font-weight: 800; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.footer-brand h4 i { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; opacity: 0.75; max-width: 320px; }
.footer-col h5 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 14px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; opacity: 0.72; transition: opacity var(--transition), color var(--transition); }
.footer-col ul li a:hover { opacity: 1; color: var(--accent-light); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 24px; text-align: center; font-size: 13px; opacity: 0.6; }

/* ===== 响应式断点 ===== */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 44px; }
  .hero-stats { gap: 32px; }
  .section-header h2 { font-size: 32px; }
}
@media (max-width: 768px) {
  .header-top { flex-wrap: wrap; gap: 12px; }
  .header-search { width: 100%; order: 3; }
  .cat-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero { padding: 80px 0 100px; }
  .hero h1 { font-size: 34px; }
  .hero p.lead { font-size: 16px; }
  .hero-stats { margin-top: 40px; }
  .hero-stat h3 { font-size: 28px; }
  .section { padding: 60px 0; }
  .section-header h2 { font-size: 28px; }
  .stats-grid { gap: 16px; }
  .steps { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; gap: 12px; }
  .cta-section h2 { font-size: 30px; }
  .nav-tabs { padding: 8px 16px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .btn-cta { padding: 8px 16px; font-size: 13px; }
  .hero h1 { font-size: 28px; }
  .hero p.lead { font-size: 15px; }
  .hero-actions .btn-light, .hero-actions .btn-outline-light { padding: 11px 20px; font-size: 14px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-card h3 { font-size: 30px; }
  .section-header h2 { font-size: 24px; }
  .cat-card-body { padding: 20px; }
  .step-item { padding: 22px 18px; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* roulang page: category1 */
:root {
  --primary: #16325c;
  --primary-dark: #0e1f3d;
  --primary-light: #244a7d;
  --accent: #c9a24b;
  --accent-hover: #b58a34;
  --bg-body: #f5f7fb;
  --bg-white: #ffffff;
  --bg-soft: #edf1f8;
  --text-main: #1c2b3a;
  --text-weak: #5c6b7a;
  --text-light: #8a96a5;
  --border: #e2e7ef;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 4px 20px rgba(18, 38, 63, 0.07);
  --shadow-lg: 0 14px 40px rgba(18, 38, 63, 0.12);
  --transition: all 0.25s ease;
  --container: 1200px;
  --space-section: 96px;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
ul, ol {
  list-style: none;
}
input, button, textarea {
  font-family: inherit;
  font-size: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
section {
  padding: var(--space-section) 0;
}
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201, 162, 75, 0.12);
  color: var(--accent-hover);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-header h2 {
  font-size: 34px;
  line-height: 1.3;
  color: var(--primary-dark);
  font-weight: 700;
  margin-bottom: 14px;
}
.section-header p {
  color: var(--text-weak);
  font-size: 16px;
}

/* Header */
.site-header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-top {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: 0.5px;
}
.brand i {
  color: var(--accent);
  font-size: 24px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-soft);
  border: 1px solid transparent;
  border-radius: 40px;
  padding: 8px 16px;
  min-width: 240px;
  transition: var(--transition);
}
.header-search:focus-within {
  border-color: var(--accent);
  background: var(--bg-white);
  box-shadow: 0 0 0 3px rgba(201, 162, 75, 0.15);
}
.header-search i {
  color: var(--text-light);
  font-size: 14px;
}
.header-search input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 14px;
  color: var(--text-main);
}
.header-search input::placeholder {
  color: var(--text-light);
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 10px 22px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  flex-shrink: 0;
}
.btn-cta:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(22, 50, 92, 0.22);
}
.header-nav {
  background: var(--primary-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.nav-tabs {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-tabs::-webkit-scrollbar {
  display: none;
}
.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  font-weight: 500;
  border-bottom: 3px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
}
.nav-tab i {
  font-size: 14px;
}
.nav-tab:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.nav-tab.active {
  color: #fff;
  border-bottom-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  font-weight: 600;
}

/* Page Hero */
.page-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 120px 0 90px;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(10, 22, 42, 0.9) 0%, rgba(14, 31, 61, 0.78) 55%, rgba(18, 40, 70, 0.45) 100%);
}
.page-hero .container {
  position: relative;
  z-index: 2;
}
.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 24px;
}
.hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  transition: var(--transition);
}
.hero-breadcrumb a:hover {
  color: var(--accent);
}
.hero-breadcrumb i {
  font-size: 11px;
}
.hero-breadcrumb span {
  color: var(--accent);
}
.page-hero h1 {
  font-size: 44px;
  line-height: 1.3;
  color: #fff;
  font-weight: 800;
  max-width: 660px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.page-hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.page-hero p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 17px;
  max-width: 620px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #1a1a1a;
  padding: 14px 32px;
  border-radius: 40px;
  font-weight: 700;
  font-size: 15px;
  transition: var(--transition);
  box-shadow: 0 6px 22px rgba(201, 162, 75, 0.35);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(201, 162, 75, 0.4);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  padding: 14px 30px;
  border-radius: 40px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-3px);
}

/* Intro Section */
.intro-section {
  background: var(--bg-white);
  margin-top: -50px;
  position: relative;
  z-index: 5;
  padding-top: 40px;
}
.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px;
  border: 1px solid var(--border);
}
.intro-item {
  padding: 28px 24px;
  border-radius: var(--radius);
  background: var(--bg-soft);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.intro-item::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: var(--transition);
}
.intro-item:hover::after {
  opacity: 1;
}
.intro-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}
.intro-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}
.intro-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.intro-item p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.7;
}

/* Category Cards */
.category-section {
  background: var(--bg-body);
}
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.category-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201, 162, 75, 0.4);
}
.category-card .card-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.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(to top, rgba(14, 31, 61, 0.55) 0%, transparent 60%);
}
.card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 30px;
  backdrop-filter: blur(4px);
}
.category-card .card-body {
  padding: 26px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.category-card .card-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.category-card .card-body p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.65;
  flex: 1;
  margin-bottom: 18px;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-hover);
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
}
.card-link:hover {
  gap: 14px;
  color: var(--primary);
}

/* Article List */
.article-section {
  background: var(--bg-white);
}
.article-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.article-item {
  display: flex;
  gap: 20px;
  background: var(--bg-body);
  border-radius: var(--radius);
  padding: 22px;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.article-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
  border-color: rgba(201, 162, 75, 0.35);
}
.article-num {
  font-size: 32px;
  font-weight: 800;
  color: rgba(201, 162, 75, 0.35);
  line-height: 1;
  min-width: 48px;
  margin-top: 4px;
}
.article-content h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 8px;
  line-height: 1.5;
}
.article-content p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 12px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(22, 50, 92, 0.08);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.badge-accent {
  background: rgba(201, 162, 75, 0.14);
  color: var(--accent-hover);
}

/* Process */
.process-section {
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
}
.process-section::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: rgba(201, 162, 75, 0.1);
}
.process-section .section-header h2 {
  color: #fff;
}
.process-section .section-header p {
  color: rgba(255, 255, 255, 0.65);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 2;
}
.process-step {
  text-align: center;
  padding: 36px 28px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}
.process-step:hover {
  background: rgba(255, 255, 255, 0.09);
  transform: translateY(-6px);
}
.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent);
  color: #1a1a1a;
  font-size: 22px;
  font-weight: 800;
  margin: 0 auto 22px;
}
.process-step h4 {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
}
.process-step p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  line-height: 1.7;
}

/* FAQ */
.faq-section {
  background: var(--bg-body);
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(201, 162, 75, 0.35);
  box-shadow: var(--shadow);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-dark);
  text-align: left;
  transition: var(--transition);
}
.faq-question i {
  color: var(--accent);
  font-size: 18px;
  margin-left: auto;
  transition: transform 0.3s ease;
}
.faq-item.active .faq-question i {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-item.active .faq-answer {
  max-height: 400px;
}
.faq-answer p {
  padding: 0 24px 24px;
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.8;
}

/* CTA */
.cta-section {
  background: var(--bg-white);
  padding: 80px 0;
}
.cta-box {
  background: linear-gradient(120deg, var(--primary-dark) 0%, var(--primary) 100%);
  border-radius: var(--radius-lg);
  padding: 60px 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  overflow: hidden;
}
.cta-box::after {
  content: "";
  position: absolute;
  bottom: -80px;
  right: -40px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(201, 162, 75, 0.15);
}
.cta-box h2 {
  color: #fff;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-box p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 15px;
  max-width: 520px;
}
.cta-box .btn-primary {
  flex-shrink: 0;
}

/* Footer */
.site-footer {
  background: #0d1421;
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand h4 {
  color: #fff;
  font-size: 20px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand h4 i {
  color: var(--accent);
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  max-width: 360px;
}
.footer-col h5 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* Responsive */
@media (max-width: 1024px) {
  :root {
    --space-section: 80px;
  }
  .intro-grid {
    grid-template-columns: 1fr 1fr;
  }
  .category-grid {
    grid-template-columns: 1fr 1fr;
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .header-top {
    flex-wrap: wrap;
    gap: 14px;
  }
  .header-actions {
    width: 100%;
    justify-content: space-between;
  }
  .header-search {
    min-width: 180px;
    flex: 1;
  }
  .page-hero {
    padding: 90px 0 70px;
  }
  .page-hero h1 {
    font-size: 32px;
  }
  .intro-grid {
    grid-template-columns: 1fr;
    padding: 24px;
  }
  .category-grid {
    grid-template-columns: 1fr;
  }
  .article-list {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .cta-box {
    flex-direction: column;
    text-align: center;
    padding: 40px 30px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .section-header h2 {
    font-size: 27px;
  }
  .section-header p {
    font-size: 15px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  section {
    padding: 60px 0;
  }
  .brand {
    font-size: 18px;
  }
  .header-search {
    min-width: 100%;
  }
  .btn-cta {
    padding: 10px 16px;
    font-size: 13px;
  }
  .page-hero h1 {
    font-size: 27px;
  }
  .page-hero p {
    font-size: 15px;
  }
  .hero-buttons .btn-primary, 
  .hero-buttons .btn-secondary {
    width: 100%;
    justify-content: center;
  }
  .article-item {
    flex-direction: column;
  }
  .article-num {
    font-size: 26px;
  }
  .faq-question {
    font-size: 15px;
    padding: 18px;
  }
  .faq-answer p {
    padding: 0 18px 18px;
  }
}

/* roulang page: category2 */
:root {
      --primary: #1a56db;
      --primary-deep: #173f9e;
      --primary-light: #eaf0ff;
      --accent: #f59e0b;
      --accent-deep: #d97706;
      --bg: #f7f9fc;
      --bg-white: #ffffff;
      --text-main: #12233d;
      --text-weak: #64748b;
      --border: #e2e8f0;
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 8px;
      --shadow-sm: 0 2px 10px rgba(15, 26, 45, .06);
      --shadow-md: 0 8px 28px rgba(15, 26, 45, .09);
      --shadow-lg: 0 18px 48px rgba(15, 26, 45, .12);
      --spacing-section: 88px;
      --transition: .25s cubic-bezier(.25, .8, .4, 1);
    }

    *,
    *::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-main);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    ul,
    ol {
      list-style: none;
    }

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 2px 16px rgba(15, 26, 45, .04);
    }

    .header-top {
      max-width: 1200px;
      margin: 0 auto;
      padding: 18px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .brand {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: .5px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
      line-height: 1.2;
    }

    .brand i {
      color: var(--primary);
      font-size: 1.5rem;
    }

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

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

    .header-search {
      display: flex;
      align-items: center;
      gap: 8px;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 40px;
      padding: 8px 16px;
      width: 260px;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .header-search:focus-within {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(26, 86, 219, .12);
      background: #fff;
    }

    .header-search i {
      color: var(--text-weak);
      font-size: .9rem;
    }

    .header-search input {
      border: none;
      outline: none;
      background: transparent;
      width: 100%;
      font-size: .9rem;
      color: var(--text-main);
    }

    .header-search input::placeholder {
      color: #94a3b8;
    }

    .btn-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary);
      color: #fff;
      border: none;
      padding: 9px 22px;
      border-radius: 40px;
      font-size: .9rem;
      font-weight: 600;
      cursor: pointer;
      transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
      box-shadow: 0 4px 14px rgba(26, 86, 219, .24);
    }

    .btn-cta:hover {
      background: var(--primary-deep);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(26, 86, 219, .32);
    }

    .btn-cta:focus-visible,
    .header-search input:focus-visible,
    .nav-tab:focus-visible {
      outline: 3px solid rgba(26, 86, 219, .35);
      outline-offset: 2px;
    }

    .header-nav {
      border-top: 1px solid var(--border);
      background: #fff;
    }

    .nav-tabs {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      gap: 6px;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .nav-tabs::-webkit-scrollbar {
      display: none;
    }

    .nav-tab {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 13px 20px;
      font-size: .95rem;
      font-weight: 600;
      color: var(--text-weak);
      border-radius: 10px 10px 0 0;
      border: none;
      background: transparent;
      cursor: pointer;
      position: relative;
      transition: color var(--transition), background var(--transition);
      white-space: nowrap;
    }

    .nav-tab i {
      font-size: .9rem;
    }

    .nav-tab:hover {
      color: var(--primary);
      background: var(--primary-light);
    }

    .nav-tab.active {
      color: var(--primary);
      background: var(--primary-light);
    }

    .nav-tab.active::after {
      content: '';
      position: absolute;
      left: 12px;
      right: 12px;
      bottom: 0;
      height: 3px;
      border-radius: 3px 3px 0 0;
      background: var(--primary);
    }

    /* Banner */
    .page-banner {
      position: relative;
      padding: 72px 0 80px;
      background: linear-gradient(135deg, #0d1b39 0%, #142d5e 48%, #1a56db 100%);
      overflow: hidden;
    }

    .page-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      opacity: .2;
    }

    .page-banner::after {
      content: '';
      position: absolute;
      right: -80px;
      top: -80px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .04);
    }

    .banner-inner {
      position: relative;
      z-index: 2;
      max-width: 760px;
    }

    .banner-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .2);
      color: #fff;
      padding: 6px 16px;
      border-radius: 40px;
      font-size: .82rem;
      font-weight: 600;
      letter-spacing: .5px;
      margin-bottom: 20px;
    }

    .banner-tag i {
      color: #fbbf24;
    }

    .page-banner h1 {
      color: #fff;
      font-size: 2.5rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: 1px;
    }

    .page-banner p {
      color: rgba(255, 255, 255, .82);
      font-size: 1.05rem;
      line-height: 1.8;
      max-width: 620px;
    }

    /* Breadcrumb */
    .breadcrumb {
      padding: 18px 0;
      font-size: .85rem;
      color: var(--text-weak);
    }

    .breadcrumb a {
      color: var(--text-weak);
    }

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

    .breadcrumb span {
      margin: 0 8px;
      color: #cbd5e1;
    }

    .breadcrumb .current {
      color: var(--primary);
      font-weight: 600;
    }

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

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

    .section-head {
      max-width: 720px;
      margin: 0 auto 48px;
      text-align: center;
    }

    .section-head .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: .82rem;
      font-weight: 700;
      padding: 5px 14px;
      border-radius: 40px;
      margin-bottom: 14px;
      border: 1px solid rgba(26, 86, 219, .1);
    }

    .section-head h2 {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 12px;
    }

    .section-head p {
      color: var(--text-weak);
      font-size: 1rem;
      line-height: 1.8;
    }

    /* Highlight Cards */
    .highlight-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .highlight-card {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      position: relative;
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .highlight-card::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      opacity: 0;
      transition: opacity var(--transition);
    }

    .highlight-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(26, 86, 219, .2);
    }

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

    .highlight-icon {
      width: 56px;
      height: 56px;
      border-radius: var(--radius-md);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 20px;
    }

    .highlight-card h3 {
      font-size: 1.12rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .highlight-card p {
      font-size: .92rem;
      color: var(--text-weak);
      line-height: 1.75;
    }

    /* News Timeline */
    .news-layout {
      display: grid;
      grid-template-columns: 1fr 340px;
      gap: 40px;
    }

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

    .news-item {
      position: relative;
      padding: 0 0 40px 36px;
      border-left: 2px solid var(--border);
      margin-left: 10px;
    }

    .news-item:last-child {
      border-left-color: transparent;
      padding-bottom: 0;
    }

    .news-item::before {
      content: '';
      position: absolute;
      left: -8px;
      top: 4px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: #fff;
      border: 3px solid var(--primary);
      box-shadow: 0 0 0 4px rgba(26, 86, 219, .12);
    }

    .news-item .news-date {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: .82rem;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
    }

    .news-item .news-date i {
      font-size: .75rem;
    }

    .news-item h3 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.5;
      transition: color var(--transition);
      cursor: pointer;
    }

    .news-item h3:hover {
      color: var(--primary);
    }

    .news-item p {
      font-size: .92rem;
      color: var(--text-weak);
      line-height: 1.75;
      margin-bottom: 12px;
      max-width: 640px;
    }

    .news-item .news-meta {
      display: flex;
      gap: 18px;
      font-size: .82rem;
      color: #94a3b8;
    }

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

    .news-item .news-tag {
      display: inline-block;
      font-size: .78rem;
      color: var(--accent-deep);
      background: #fef3c7;
      padding: 2px 10px;
      border-radius: 20px;
      font-weight: 600;
    }

    /* Sidebar */
    .news-sidebar {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }

    .sidebar-card {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .sidebar-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border);
      position: relative;
    }

    .sidebar-card h3::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -1px;
      width: 42px;
      height: 3px;
      border-radius: 3px;
      background: var(--primary);
    }

    .sidebar-list li {
      padding: 10px 0;
      border-bottom: 1px dashed var(--border);
    }

    .sidebar-list li:last-child {
      border-bottom: none;
    }

    .sidebar-list a {
      font-size: .9rem;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      transition: color var(--transition), padding-left var(--transition);
    }

    .sidebar-list a:hover {
      color: var(--primary);
      padding-left: 6px;
    }

    .sidebar-list a small {
      color: var(--text-weak);
      font-size: .8rem;
      white-space: nowrap;
    }

    .sidebar-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .sidebar-tags a {
      display: inline-block;
      padding: 5px 14px;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 20px;
      font-size: .82rem;
      color: var(--text-weak);
      transition: all var(--transition);
    }

    .sidebar-tags a:hover {
      background: var(--primary-light);
      border-color: var(--primary);
      color: var(--primary);
    }

    /* Update Section */
    .update-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .update-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px 22px;
      text-align: center;
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .update-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-sm);
    }

    .update-card .update-num {
      font-size: 1.9rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 6px;
    }

    .update-card .update-label {
      font-size: .85rem;
      color: var(--text-weak);
    }

    .update-card .update-icon {
      font-size: 1.2rem;
      color: var(--accent);
      margin-bottom: 10px;
    }

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

    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(26, 86, 219, .25);
      box-shadow: var(--shadow-sm);
    }

    .faq-item[open] {
      border-color: rgba(26, 86, 219, .3);
      box-shadow: var(--shadow-sm);
    }

    .faq-item summary {
      padding: 20px 24px;
      font-weight: 600;
      font-size: .98rem;
      color: var(--text-main);
      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-item summary::after {
      content: '\f078';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      font-size: .8rem;
      color: var(--primary);
      transition: transform var(--transition);
      flex-shrink: 0;
    }

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

    .faq-item .faq-content {
      padding: 0 24px 20px;
      color: var(--text-weak);
      font-size: .92rem;
      line-height: 1.8;
      border-top: 1px dashed var(--border);
      padding-top: 16px;
    }

    /* CTA */
    .cta-section {
      background: linear-gradient(135deg, #10234a 0%, #1a56db 100%);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      opacity: .08;
    }

    .cta-section .cta-inner {
      position: relative;
      z-index: 2;
    }

    .cta-section h2 {
      color: #fff;
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .cta-section p {
      color: rgba(255, 255, 255, .78);
      font-size: 1rem;
      max-width: 560px;
      margin: 0 auto 30px;
      line-height: 1.8;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 40px;
      font-size: .95rem;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: all var(--transition);
    }

    .btn-white {
      background: #fff;
      color: var(--primary);
      box-shadow: 0 4px 14px rgba(0, 0, 0, .12);
    }

    .btn-white:hover {
      background: var(--primary-light);
      color: var(--primary-deep);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, .16);
    }

    .btn-outline-light {
      background: transparent;
      color: #fff;
      border: 1.5px solid rgba(255, 255, 255, .55);
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, .1);
      color: #fff;
      border-color: #fff;
      transform: translateY(-2px);
    }

    /* Footer */
    .site-footer {
      background: #0f1b33;
      color: #94a3b8;
      padding: 64px 0 0;
      margin-top: 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1.2fr;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, .08);
    }

    .footer-brand h4 {
      color: #fff;
      font-size: 1.25rem;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-brand h4 i {
      color: #60a5fa;
    }

    .footer-brand p {
      font-size: .9rem;
      line-height: 1.8;
      color: #64748b;
      max-width: 360px;
    }

    .footer-col h5 {
      color: #fff;
      font-size: .95rem;
      margin-bottom: 18px;
      font-weight: 600;
      letter-spacing: .5px;
    }

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

    .footer-col ul a {
      color: #64748b;
      font-size: .88rem;
      transition: color var(--transition), padding-left var(--transition);
    }

    .footer-col ul a:hover {
      color: #fff;
      padding-left: 5px;
    }

    .footer-bottom {
      padding: 24px 0;
      text-align: center;
      font-size: .82rem;
      color: #475569;
      border-top: 1px solid rgba(255, 255, 255, .06);
    }

    /* Responsive */
    @media (max-width: 1024px) {
      :root {
        --spacing-section: 68px;
      }

      .highlight-grid {
        gap: 20px;
      }

      .news-layout {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .update-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }
    }

    @media (max-width: 768px) {
      .header-top {
        flex-direction: column;
        align-items: stretch;
        padding: 14px 20px;
      }

      .header-actions {
        justify-content: space-between;
        gap: 12px;
      }

      .header-search {
        width: auto;
        flex: 1;
      }

      .nav-tabs {
        padding: 0 12px;
      }

      .nav-tab {
        padding: 12px 14px;
        font-size: .88rem;
      }

      .page-banner {
        padding: 56px 0 64px;
      }

      .page-banner h1 {
        font-size: 1.9rem;
      }

      .page-banner p {
        font-size: .95rem;
      }

      .highlight-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .update-grid {
        grid-template-columns: 2fr;
      }

      .section-head h2 {
        font-size: 1.55rem;
      }

      .cta-section {
        padding: 48px 24px;
      }

      .cta-section h2 {
        font-size: 1.4rem;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }

      .header-top {
        padding: 12px 16px;
      }

      .brand {
        font-size: 1.08rem;
      }

      .brand i {
        font-size: 1.15rem;
      }

      .header-actions {
        flex-direction: column;
        gap: 10px;
      }

      .header-search {
        width: 100%;
      }

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

      .nav-tab {
        font-size: .82rem;
        padding: 10px 10px;
        gap: 5px;
      }

      .page-banner {
        padding: 44px 0 52px;
      }

      .page-banner h1 {
        font-size: 1.55rem;
      }

      .page-banner p {
        font-size: .88rem;
      }

      .section {
        padding: 54px 0;
      }

      .news-item {
        padding-left: 24px;
        margin-left: 4px;
      }

      .news-item .news-meta {
        flex-wrap: wrap;
        gap: 10px;
      }

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

      .cta-buttons {
        flex-direction: column;
      }

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

/* roulang page: article */
:root {
  --primary: #0e64d9;
  --primary-dark: #0a4aa5;
  --primary-deep: #0b1f3a;
  --primary-light: #e8f1fd;
  --accent: #f5a623;
  --accent-light: #fff4e0;
  --bg: #f5f8fc;
  --surface: #ffffff;
  --text: #17233b;
  --muted: #5b6b82;
  --border: #e2e9f3;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 12px rgba(17, 34, 65, .06);
  --shadow-md: 0 12px 28px rgba(17, 34, 65, .08);
  --shadow-lg: 0 24px 56px rgba(17, 34, 65, .10);
  --container: 1200px;
  --spacing-section: 72px;
  --spacing-mobile: 48px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
ul, ol { list-style: none; }

.container { width: min(var(--container), 100% - 48px); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 18px rgba(17, 34, 65, .04);
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 32px;
  max-width: var(--container);
  margin: 0 auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
  white-space: nowrap;
}
.brand i {
  font-size: 20px;
  color: var(--primary);
  background: var(--primary-light);
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
}
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  width: 260px;
  color: var(--muted);
  transition: border-color .2s, background .2s;
}
.header-search:focus-within { border-color: var(--primary); background: #fff; }
.header-search input { border: none; background: transparent; outline: none; width: 100%; color: var(--text); font-size: 14px; }
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  transition: background .2s, transform .2s, box-shadow .2s;
}
.btn-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(14,100,217,.25); }
.header-nav { border-top: 1px solid var(--border); background: #fbfdff; }
.nav-tabs {
  display: flex;
  gap: 4px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 10px 32px 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-tabs::-webkit-scrollbar { display: none; }
.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
  transition: background .2s, color .2s;
}
.nav-tab:hover { background: var(--primary-light); color: var(--primary); }
.nav-tab.active { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(14,100,217,.25); }

/* Article Hero */
.article-hero {
  position: relative;
  background-color: var(--primary-deep);
  background-image: linear-gradient(135deg, rgba(11,31,58,.94), rgba(14,100,217,.84)), var(--hero-img, url('/assets/images/backpic/back-1.png'));
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 72px 0;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb { font-size: 14px; opacity: .85; margin-bottom: 16px; font-weight: 500; display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumb a { color: #fff; opacity: .8; transition: opacity .2s; }
.breadcrumb a:hover { opacity: 1; }
.breadcrumb span { opacity: .6; }
.category-badge {
  display: inline-block;
  background: var(--accent);
  color: #1f2937;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: .3px;
}
.article-hero h1 {
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.25;
  max-width: 880px;
  font-weight: 800;
  letter-spacing: .5px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 22px;
  font-size: 14px;
  color: rgba(255,255,255,.88);
}
.article-meta i { margin-right: 6px; color: var(--accent); }

/* Article Layout */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 36px;
  padding: 64px 0 88px;
  align-items: start;
}
.article-main .card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  overflow: hidden;
}
.article-content {
  padding: 40px 44px;
  font-size: 16px;
  line-height: 1.95;
  color: var(--text);
}
.article-content p { margin-bottom: 20px; }
.article-content h2 {
  font-size: 24px;
  margin: 32px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  line-height: 1.4;
}
.article-content h3 { font-size: 20px; margin: 26px 0 12px; line-height: 1.4; }
.article-content ul, .article-content ol { margin: 0 0 22px; padding-left: 22px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; }
.article-content strong { color: var(--primary-dark); font-weight: 700; }
.article-content blockquote { background: var(--primary-light); border-left: 4px solid var(--primary); padding: 18px 24px; border-radius: var(--radius-sm); margin-bottom: 24px; }
.article-content img { border-radius: var(--radius-md); margin: 24px 0; }
.article-content a { color: var(--primary); border-bottom: 1px solid rgba(14,100,217,.3); }
.article-content a:hover { color: var(--primary-dark); border-color: var(--primary-dark); }
.article-disclaimer {
  margin-top: 30px;
  background: #eef4ff;
  border-left: 3px solid var(--primary);
  padding: 16px 18px;
  border-radius: 0 12px 12px 0;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.article-disclaimer i { color: var(--primary); margin-top: 2px; }
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 24px 44px;
  border-top: 1px solid var(--border);
  background: #fbfdff;
}
.tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  transition: background .2s, color .2s;
}
.tag:hover { background: var(--primary); color: #fff; }
.article-footer-nav { display: flex; flex-wrap: wrap; gap: 14px; padding: 24px 44px 36px; border-top: 1px solid var(--border); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  transition: transform .2s, box-shadow .2s, background .2s, color .2s, border-color .2s;
  cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(14,100,217,.2); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(14,100,217,.28); }
.btn-outline { border: 1px solid var(--border); color: var(--text); background: #fff; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--primary); box-shadow: 0 10px 24px rgba(0,0,0,.12); }
.btn-white:hover { transform: translateY(-2px); background: #f0f7ff; color: var(--primary-dark); box-shadow: 0 14px 32px rgba(0,0,0,.16); }

/* Sidebar */
.sidebar { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 140px; }
.side-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
}
.side-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.side-card img { width: 100%; height: 180px; object-fit: cover; border-bottom: 1px solid var(--border); }
.side-body { padding: 22px 24px; }
.side-body h3 { font-size: 18px; margin-bottom: 8px; color: var(--primary-dark); font-weight: 700; }
.side-body p { font-size: 14px; color: var(--muted); line-height: 1.7; margin-bottom: 14px; }
.side-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: color .2s;
}
.side-link:hover { color: var(--primary-dark); }
.side-list { padding: 0; }
.side-list li { border-bottom: 1px solid var(--border); }
.side-list li:last-child { border-bottom: 0; }
.side-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 8px;
  font-size: 14px;
  color: var(--text);
  transition: color .2s, background .2s, padding-left .2s;
}
.side-list a:hover { color: var(--primary); background: var(--primary-light); padding-left: 14px; }
.side-list i {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 8px;
  font-size: 12px;
}
.side-note {
  background: var(--accent-light);
  border: 1px solid #fcd34d;
  border-radius: var(--radius-md);
  padding: 16px;
  font-size: 13px;
  color: #7c4a12;
  line-height: 1.7;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.side-note i { color: var(--accent); margin-top: 3px; }

/* Not Found */
.not-found-card {
  text-align: center;
  padding: 72px 40px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
.not-found-card > i { font-size: 52px; color: var(--accent); margin-bottom: 16px; }
.not-found-card h2 { font-size: 28px; color: var(--text); margin-bottom: 12px; }
.not-found-card p { color: var(--muted); margin-bottom: 24px; max-width: 480px; margin-inline: auto; }

/* Article CTA */
.article-cta {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  margin-bottom: 72px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.article-cta::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 180px;
  height: 180px;
  background: rgba(255,255,255,.08);
  border-radius: 50%;
}
.cta-copy { position: relative; z-index: 1; }
.cta-copy h3 { font-size: 24px; margin-bottom: 6px; font-weight: 700; }
.cta-copy p { opacity: .88; }
.cta-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; position: relative; z-index: 1; }
.cta-link {
  color: #fff;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 5px;
  transition: opacity .2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.cta-link:hover { opacity: .85; }

/* Footer */
.site-footer {
  background: #0d1c33;
  color: #c4d3e8;
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 44px;
}
.footer-brand h4 {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand h4 i { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 420px; color: #9fb3cc; }
.footer-col h5 { color: #fff; font-size: 16px; margin-bottom: 16px; font-weight: 600; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: #9fb3cc; font-size: 14px; transition: color .2s; display: inline-flex; align-items: center; gap: 6px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 24px;
  font-size: 13px;
  color: #8499b5;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: #c4d3e8; }
.footer-bottom a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 1024px) {
  :root { --spacing-section: 56px; }
  .article-layout { grid-template-columns: 1fr; gap: 32px; }
  .sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .side-card img { height: 150px; }
  .header-search { width: 220px; }
}

@media (max-width: 768px) {
  .header-top { padding: 12px 16px; flex-wrap: wrap; }
  .header-search { width: 100%; order: 3; margin-top: 4px; }
  .header-actions { gap: 12px; }
  .nav-tabs { padding: 10px 16px 14px; }
  .article-hero { padding: 52px 0; }
  .article-content { padding: 28px 22px; }
  .article-tags, .article-footer-nav { padding: 20px 22px; }
  .article-cta { padding: 32px 24px; flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .sidebar { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  :root { --spacing-section: 40px; }
  .brand { font-size: 18px; }
  .btn-cta { padding: 9px 14px; font-size: 14px; }
  .header-actions { gap: 10px; width: 100%; justify-content: space-between; }
  .article-layout { padding: 40px 0 56px; }
  .article-footer-nav .btn { width: 100%; justify-content: center; }
  .cta-actions .btn { width: 100%; justify-content: center; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .not-found-card { padding: 48px 24px; }
}