/* roulang page: index */
:root {
  --brand-50: #eef7ff;
  --brand-100: #d9edff;
  --brand-600: #1e6df5;
  --brand-700: #1757e2;
  --brand-800: #1947b7;
  --brand-900: #1b3f90;
  --brand-950: #162a57;
  --accent-400: #2dd4bf;
  --accent-500: #14b8a6;
  --accent-600: #0d9488;
  --bg-body: #f6f8fc;
  --bg-card: #ffffff;
  --text-main: #17233c;
  --text-sub: #5b6b8c;
  --text-weak: #9aa6bd;
  --border-light: #e6ebf4;
  --radius-lg: 16px;
  --radius-md: 10px;
  --shadow-sm: 0 2px 12px rgba(15, 35, 80, 0.06);
  --shadow-md: 0 6px 20px rgba(15, 35, 80, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 35, 80, 0.12);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
}
*, *::before, *::after {
  box-sizing: border-box;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s ease; }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; margin: 0; padding: 0; }

.container-root {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ============ header & nav ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow .3s ease;
}
.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(15, 35, 80, 0.08);
}
.site-header .header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  color: var(--brand-700);
  letter-spacing: 0.5px;
  white-space: nowrap;
  flex-shrink: 0;
}
.logo:hover { color: var(--brand-600); }
.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand-600), var(--accent-500));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(30, 109, 245, 0.3);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  transition: color .2s ease, background .2s ease;
}
.main-nav a:hover {
  color: var(--brand-600);
  background: rgba(30, 109, 245, 0.06);
}
.main-nav a.active {
  color: var(--brand-600);
  font-weight: 700;
  background: rgba(30, 109, 245, 0.08);
}
.header-search {
  display: flex;
  align-items: center;
  background: #f2f5fa;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 6px 0 16px;
  height: 40px;
  transition: border-color .25s ease, box-shadow .25s ease, background .25s ease;
  margin-left: auto;
  max-width: 260px;
  width: 100%;
}
.header-search:focus-within {
  border-color: var(--brand-600);
  box-shadow: 0 0 0 3px rgba(30, 109, 245, 0.12);
  background: #fff;
}
.header-search input {
  border: none;
  outline: none;
  background: transparent;
  flex: 1;
  font-size: 14px;
  color: var(--text-main);
  min-width: 0;
}
.header-search input::placeholder {
  color: var(--text-weak);
}
.header-search button {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: var(--brand-600);
  border: none;
  color: #fff;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .25s ease;
  flex-shrink: 0;
}
.header-search button:hover { background: var(--brand-700); }
.header-search button:focus-visible {
  outline: 3px solid rgba(30, 109, 245, 0.3);
  outline-offset: 2px;
}
.mobile-menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border-light);
  background: #fff;
  color: var(--text-main);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  transition: background .25s ease, border-color .25s ease;
}
.mobile-menu-toggle:hover {
  background: #f2f5fa;
  border-color: rgba(30, 109, 245, 0.3);
}

/* ============ hero ============ */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, rgba(22, 42, 87, 0.94), rgba(23, 87, 226, 0.87)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 84px 0 76px;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 440px;
  height: 440px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.28), transparent 70%);
  pointer-events: none;
}
.hero-section::after {
  content: '';
  position: absolute;
  bottom: -140px;
  left: -60px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 22px;
  backdrop-filter: blur(8px);
}
.hero-title {
  font-size: 46px;
  line-height: 1.28;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.hero-subtitle {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 660px;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  transition: transform .2s ease, box-shadow .25s ease, background .25s ease;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn:focus-visible,
.site-header a:focus-visible,
.footer-links a:focus-visible,
.cat-card:focus-visible {
  outline: 3px solid rgba(30, 109, 245, 0.4);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--brand-600);
  color: #fff;
  box-shadow: 0 6px 20px rgba(30, 109, 245, 0.35);
}
.btn-primary:hover {
  background: var(--brand-700);
  box-shadow: 0 10px 28px rgba(30, 109, 245, 0.4);
}
.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.22);
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 58px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.hero-stat-item {
  text-align: center;
  padding: 18px 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(6px);
  transition: background .25s ease, transform .25s ease;
}
.hero-stat-item:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
}
.hero-stat-num {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.hero-stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 4px;
}

/* ============ section common ============ */
.section-block {
  padding: 80px 0;
}
.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(30, 109, 245, 0.08);
  color: var(--brand-600);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}
.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 12px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* ============ feature cards ============ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-600), var(--accent-500));
  opacity: 0;
  transition: opacity .3s ease;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(30, 109, 245, 0.2);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(30, 109, 245, 0.12), rgba(20, 184, 166, 0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--brand-600);
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}
.feature-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* ============ category cards ============ */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.cat-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
  display: block;
}
.cat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.cat-card-media {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.cat-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.cat-card:hover .cat-card-media img {
  transform: scale(1.06);
}
.cat-card-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15, 35, 80, 0.55));
}
.cat-card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-700);
}
.cat-card-body {
  padding: 20px 24px 24px;
}
.cat-card-body h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}
.cat-card-body p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
}
.cat-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand-600);
  font-size: 14px;
  font-weight: 600;
  transition: gap .25s ease;
}
.cat-card:hover .cat-card-link {
  gap: 10px;
}

/* ============ news list ============ */
.news-wrap {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-item {
  display: flex;
  gap: 18px;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 18px 20px;
  transition: box-shadow .3s ease, transform .3s ease;
}
.news-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.news-thumb {
  width: 130px;
  height: 86px;
  border-radius: 10px;
  flex-shrink: 0;
  overflow: hidden;
  background: #eef2f8;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.news-item:hover .news-thumb img {
  transform: scale(1.05);
}
.news-info {
  flex: 1;
  min-width: 0;
}
.news-cat {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-600);
  background: rgba(30, 109, 245, 0.08);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 6px;
}
.news-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .25s ease;
  margin-bottom: 6px;
}
.news-title:hover { color: var(--brand-600); }
.news-summary {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-weak);
}
.news-meta i {
  margin-right: 4px;
  font-size: 12px;
}
.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.sidebar-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.sidebar-title {
  font-size: 16px;
  font-weight: 700;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-light);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
}
.sidebar-title i {
  color: var(--brand-600);
}
.sidebar-list li + li {
  border-top: 1px solid #f0f3f9;
}
.sidebar-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-sub);
  transition: color .2s ease, padding-left .2s ease;
}
.sidebar-list a:hover {
  color: var(--brand-600);
  padding-left: 6px;
}
.sidebar-list a span {
  color: var(--text-weak);
  font-size: 12px;
}
.hot-tag {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.hot-tag a {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  background: #f2f5fa;
  font-size: 13px;
  color: var(--text-sub);
  transition: background .25s ease, color .25s ease;
}
.hot-tag a:hover {
  background: rgba(30, 109, 245, 0.1);
  color: var(--brand-600);
}
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-weak);
  font-size: 15px;
  background: #fff;
  border-radius: 14px;
  border: 1px dashed var(--border-light);
}

/* ============ steps ============ */
.steps-section {
  background: linear-gradient(180deg, #ffffff, #f6f8fc);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.step-item {
  position: relative;
  text-align: center;
  padding: 28px 20px;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}
.step-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-600), var(--accent-500));
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 6px 16px rgba(30, 109, 245, 0.25);
}
.step-item h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}
.step-item p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}
.step-arrow {
  position: absolute;
  top: 50%;
  right: -20px;
  transform: translateY(-50%);
  color: #cdd7e8;
  font-size: 18px;
  z-index: 2;
}

/* ============ dual section ============ */
.dual-section {
  background: #fff;
}
.dual-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}
.dual-media {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 48px rgba(15, 35, 80, 0.14);
  position: relative;
  height: 400px;
}
.dual-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.dual-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(15, 35, 80, 0.45));
}
.dual-content h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 16px;
  color: var(--text-main);
}
.dual-content > p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.85;
  margin-bottom: 20px;
}
.check-list {
  margin-top: 8px;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--text-main);
}
.check-list li i {
  color: var(--accent-500);
  margin-top: 4px;
  flex-shrink: 0;
}
.dual-btn {
  margin-top: 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background: var(--brand-600);
  box-shadow: 0 6px 20px rgba(30, 109, 245, 0.35);
  transition: background .25s ease, transform .2s ease, box-shadow .25s ease;
}
.dual-btn:hover {
  background: var(--brand-700);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(30, 109, 245, 0.4);
}
.dual-btn:focus-visible {
  outline: 3px solid rgba(30, 109, 245, 0.4);
  outline-offset: 2px;
}

/* ============ FAQ ============ */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.faq-item.active {
  border-color: rgba(30, 109, 245, 0.3);
  box-shadow: var(--shadow-sm);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-main);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: color .2s ease;
}
.faq-q:hover { color: var(--brand-600); }
.faq-q .faq-icon {
  flex-shrink: 0;
  color: var(--brand-600);
  transition: transform .3s ease;
  font-size: 14px;
}
.faq-item.active .faq-icon {
  transform: rotate(180deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a-inner {
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.85;
}

/* ============ CTA ============ */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, rgba(22, 42, 87, 0.94), rgba(23, 87, 226, 0.87)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 72px 0;
  color: #fff;
  text-align: center;
}
.cta-title {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin: 0 auto 30px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* ============ footer ============ */
.site-footer {
  background: #0e1830;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
}
.footer-brand {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 320px;
}
.footer-links-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links li + li {
  margin-top: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  transition: color .2s ease;
}
.footer-links a:hover {
  color: #fff;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  padding: 6px 0;
}
.footer-contact li i {
  color: var(--accent-400);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  margin-top: 48px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.55);
}
.footer-bottom a:hover {
  color: #fff;
}

/* ============ responsive ============ */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-title {
    font-size: 36px;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .news-wrap {
    grid-template-columns: 1fr;
  }
  .dual-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .cat-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .header-search {
    display: none;
  }
  .main-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
  .main-nav.mobile-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border-light);
    padding: 16px 24px;
    box-shadow: 0 12px 32px rgba(15, 35, 80, 0.1);
  }
  .main-nav.mobile-open a {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 15px;
  }
  .section-block,
  .steps-section p {
    padding: 56px 0;
  }
  .section-title {
    font-size: 26px;
  }
  .cat-grid {
    grid-template-columns: 1fr;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .hero-section {
    padding: 56px 0 48px;
  }
  .hero-title {
    font-size: 30px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    margin-top: 40px;
  }
  .container-root {
    padding-left: 18px;
    padding-right: 18px;
  }
  .news-item {
    flex-direction: column;
  }
  .news-thumb {
    width: 100%;
    height: 150px;
  }
  .dual-media {
    height: 280px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .cta-title {
    font-size: 24px;
  }
  .step-arrow {
    display: none;
  }
}

@media (max-width: 520px) {
  .logo {
    font-size: 17px;
  }
  .logo-mark {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }
  .hero-stat-num {
    font-size: 24px;
  }
  .hero-stat-label {
    font-size: 12px;
  }
  .btn {
    padding: 12px 20px;
    font-size: 14px;
  }
  .section-title {
    font-size: 22px;
  }
  .section-desc {
    font-size: 14px;
  }
  .feature-card {
    padding: 24px 18px;
  }
  .news-item {
    padding: 14px;
  }
  .sidebar-card {
    padding: 18px;
  }
  .footer-links-title {
    margin-top: 18px;
  }
}

/* roulang page: category1 */
:root {
    --brand-950: #081a35;
    --brand-900: #0c2456;
    --brand-800: #12357f;
    --brand-700: #1743a1;
    --primary: #1d54c4;
    --primary-hover: #1743a1;
    --accent: #f59e0b;
    --accent-hover: #d97706;
    --bg-body: #f4f7fb;
    --bg-soft: #eaf1f9;
    --surface: #ffffff;
    --text-main: #132842;
    --text-secondary: #4a5d75;
    --text-weak: #7f8fa3;
    --border-color: #dce6f2;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 10px rgba(12, 32, 64, 0.05);
    --shadow-md: 0 10px 30px rgba(12, 32, 64, 0.08);
    --shadow-lg: 0 24px 60px rgba(12, 32, 64, 0.12);
    --transition: all .28s ease;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
  body {
    font-family: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.65;
    font-size: 16px;
    overflow-x: hidden;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; transition: var(--transition); }
  button { font-family: inherit; cursor: pointer; border: none; background: none; }
  input, textarea { font-family: inherit; outline: none; }
  ul, ol { list-style: none; }
  .container-root { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 28px; }
  .section-pad { padding: 88px 0; }
  .section-pad-sm { padding: 64px 0; }

  /* ===== 通用标题 ===== */
  .section-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 600; letter-spacing: .12em;
    color: var(--primary); background: rgba(29, 84, 196, .08);
    padding: 6px 16px; border-radius: 999px; text-transform: uppercase;
  }
  .section-title { font-size: 32px; font-weight: 800; line-height: 1.28; margin-top: 12px; letter-spacing: -.01em; color: var(--brand-900);}
  .section-desc { font-size: 16px; color: var(--text-secondary); max-width: 640px; margin-top: 10px; line-height: 1.7; }

  /* ===== 按钮 ===== */
  .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; border-radius: 999px; padding: 12px 28px; font-size: 15px; transition: var(--transition); border: 2px solid transparent; white-space: nowrap; }
  .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(29,84,196,.28); }
  .btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(29,84,196,.35); }
  .btn-primary:active { transform: translateY(0); }
  .btn-ghost { background: rgba(255,255,255,.14); backdrop-filter: blur(8px); color: #fff; border-color: rgba(255,255,255,.4); }
  .btn-ghost:hover { background: rgba(255,255,255,.25); transform: translateY(-2px); border-color: rgba(255,255,255,.7); }
  .btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
  .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
  .btn-lg { padding: 15px 38px; font-size: 17px; }
  .btn-warm { background: var(--accent); color: #fff; box-shadow: 0 8px 24px rgba(245,158,11,.3); }
  .btn-warm:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(245,158,11,.4); }
  a:focus-visible, button:focus-visible { outline: 3px solid rgba(29,84,196,.5); outline-offset: 2px; border-radius: 6px; }

  /* ===== Header ===== */
  .site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,.88);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 1px 0 rgba(255,255,255,.8);
  }
  .header-row { display: flex; align-items: center; gap: 28px; height: 72px; }
  .brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
  .logo-mark {
    width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--brand-800));
    color: #fff; font-size: 16px; border-radius: 12px;
    box-shadow: 0 4px 14px rgba(29,84,196,.35);
  }
  .brand-text { font-weight: 800; font-size: 18px; color: var(--brand-900); letter-spacing: -.01em; }
  .main-nav { display: flex; align-items: center; gap: 6px; flex: 1; }
  .main-nav a { font-size: 15px; font-weight: 500; color: var(--text-secondary); padding: 8px 16px; border-radius: 999px; transition: var(--transition); }
  .main-nav a:hover { color: var(--primary); background: rgba(29,84,196,.08); }
  .main-nav a.active { color: var(--primary); background: rgba(29,84,196,.12); font-weight: 700; box-shadow: inset 0 0 0 1px rgba(29,84,196,.15); }
  .header-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }
  .search-box { position: relative; }
  .search-box input {
    width: 190px; height: 40px; border-radius: 999px; border: 1px solid var(--border-color);
    background: var(--bg-soft); padding: 0 42px 0 16px; font-size: 14px; color: var(--text-main);
    transition: var(--transition);
  }
  .search-box input:focus { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(29,84,196,.1); width: 220px; }
  .search-box button { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--text-weak); transition: var(--transition); }
  .search-box button:hover { background: rgba(29,84,196,.1); color: var(--primary); }
  .nav-toggle { display: none; width: 42px; height: 42px; border-radius: 12px; background: var(--bg-soft); color: var(--text-main); font-size: 18px; align-items: center; justify-content: center; }

  /* ===== Hero ===== */
  .page-hero { position: relative; overflow: hidden; padding: 72px 0 88px; background: var(--brand-950); }
  .hero-bg { position: absolute; inset: 0; background-position: center; background-size: cover; opacity: .35; }
  .hero-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(8,26,53,.95) 30%, rgba(12,36,86,.72) 75%, rgba(29,84,196,.45)); }
  .hero-content { position: relative; z-index: 2; }
  .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.72); margin-bottom: 24px; }
  .breadcrumb a { color: rgba(255,255,255,.85); }
  .breadcrumb a:hover { color: #fff; }
  .breadcrumb i { font-size: 10px; color: rgba(255,255,255,.4); }
  .page-hero h1 { font-size: 44px; font-weight: 900; color: #fff; line-height: 1.22; letter-spacing: -.02em; }
  .page-hero h1 .highlight { color: var(--warm, #fbbf24); }
  .hero-sub { color: rgba(255,255,255,.82); font-size: 17px; max-width: 620px; margin-top: 16px; line-height: 1.7; }
  .hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }

  /* ===== 登录方式卡片 ===== */
  .method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
  .method-card {
    background: var(--surface); border: 1px solid var(--border-color); border-radius: var(--radius-lg);
    padding: 30px 24px; transition: var(--transition); position: relative; overflow: hidden;
    box-shadow: var(--shadow-sm);
  }
  .method-card::before { content:""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent)); opacity: 0; transition: var(--transition); }
  .method-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(29,84,196,.3); }
  .method-card:hover::before { opacity: 1; }
  .method-icon { width: 50px; height: 50px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 18px; }
  .method-card:nth-child(1) .method-icon { background: rgba(29,84,196,.12); color: var(--primary); }
  .method-card:nth-child(2) .method-icon { background: rgba(16,185,129,.12); color: #0d9f6e; }
  .method-card:nth-child(3) .method-icon { background: rgba(245,158,11,.12); color: var(--accent-hover); }
  .method-card:nth-child(4) .method-icon { background: rgba(139,92,246,.12); color: #7c3aed; }
  .method-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--brand-900); }
  .method-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }
  .method-tag { display: inline-block; margin-top: 14px; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 999px; background: var(--bg-soft); color: var(--primary); }

  /* ===== 步骤流程 ===== */
  .steps-section { background: var(--bg-soft); }
  .steps-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 44px; }
  .step-item { position: relative; }
  .step-num {
    width: 52px; height: 52px; border-radius: 16px; background: linear-gradient(135deg, var(--primary), var(--brand-700));
    color: #fff; font-weight: 900; font-size: 20px; display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 24px rgba(29,84,196,.28); margin-bottom: 16px;
  }
  .step-arrow { position: absolute; right: -18px; top: 20px; color: var(--primary-light); font-size: 14px; opacity: .5; z-index: 2; }
  .step-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--brand-900); }
  .step-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }

  /* ===== 数据 ===== */
  .stats-band {
    background: linear-gradient(120deg, var(--brand-900), var(--brand-800));
    padding: 48px 0; border-radius: 28px; margin-top: 16px; position: relative; overflow: hidden;
  }
  .stats-band::after { content:""; position: absolute; right: -60px; top: -60px; width: 200px; height: 200px; border-radius: 50%; background: rgba(255,255,255,.06); }
  .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; z-index: 2; }
  .stat-item { text-align: center; padding: 20px 12px; border-right: 1px solid rgba(255,255,255,.12); }
  .stat-item:last-child { border-right: none; }
  .stat-value { font-size: 36px; font-weight: 900; color: #fff; line-height: 1.2; }
  .stat-value span { color: var(--warm, #fbbf24); }
  .stat-label { font-size: 14px; color: rgba(255,255,255,.65); margin-top: 6px; }

  /* ===== 问题排查 ===== */
  .trouble-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
  .trouble-card {
    background: var(--surface); border: 1px solid var(--border-color); border-radius: var(--radius-md);
    padding: 24px; display: flex; gap: 16px; transition: var(--transition);
  }
  .trouble-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: rgba(29,84,196,.28); }
  .trouble-icon { flex-shrink: 0; width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
  .trouble-card:nth-child(1) .trouble-icon { background: rgba(245,158,11,.15); color: var(--accent-hover); }
  .trouble-card:nth-child(2) .trouble-icon { background: rgba(29,84,196,.12); color: var(--primary); }
  .trouble-card:nth-child(3) .trouble-icon { background: rgba(14,165,233,.12); color: #0284c7; }
  .trouble-card:nth-child(4) .trouble-icon { background: rgba(239,68,68,.12); color: #dc2626; }
  .trouble-card:nth-child(5) .trouble-icon { background: rgba(139,92,246,.12); color: #7c3aed; }
  .trouble-card:nth-child(6) .trouble-icon { background: rgba(16,185,129,.12); color: #0d9f6e; }
  .trouble-card h3 { font-size: 16px; font-weight: 700; color: var(--brand-900); margin-bottom: 4px; }
  .trouble-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

  /* ===== 安全 ===== */
  .security-band {
    background: linear-gradient(135deg, #071a33 0%, #0c2456 60%, #12357f 100%);
    border-radius: 28px; padding: 56px; position: relative; overflow: hidden; color: #fff;
  }
  .security-band::before { content:""; position: absolute; left: 30%; top: -80px; width: 280px; height: 280px; border-radius: 50%; border: 40px solid rgba(255,255,255,.04); }
  .security-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 2; }
  .security-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
  .security-item h3 i { color: var(--warm, #fbbf24); }
  .security-item p { font-size: 14px; color: rgba(255,255,255,.7); line-height: 1.65; }
  .security-note { margin-top: 30px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 14px; padding: 16px 20px; font-size: 14px; display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.85); position: relative; z-index: 2; }
  .security-note i { color: var(--warm, #fbbf24); flex-shrink: 0; }

  /* ===== FAQ ===== */
  .faq-list { max-width: 780px; margin: 40px auto 0; }
  .faq-item { background: var(--surface); border: 1px solid var(--border-color); border-radius: var(--radius-md); margin-bottom: 14px; overflow: hidden; transition: var(--transition); }
  .faq-item:hover { border-color: rgba(29,84,196,.25); box-shadow: var(--shadow-sm); }
  .faq-q { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--brand-900); text-align: left; }
  .faq-q i { color: var(--primary); transition: transform .3s ease; font-size: 14px; flex-shrink: 0; }
  .faq-item.open .faq-q i { transform: rotate(180deg); }
  .faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
  .faq-a-inner { padding: 0 24px 20px; font-size: 14px; color: var(--text-secondary); line-height: 1.75; border-top: 0; }

  /* ===== CTA ===== */
  .cta-section { background: linear-gradient(120deg, var(--brand-900), var(--brand-700)); border-radius: 28px; padding: 56px 48px; text-align: center; color: #fff; position: relative; overflow: hidden; }
  .cta-section::after { content:""; position: absolute; right: -60px; top: -60px; width: 240px; height: 240px; border-radius: 50%; background: rgba(255,255,255,.06); }
  .cta-section::before { content:""; position: absolute; left: -40px; bottom: -80px; width: 180px; height: 180px; border-radius: 50%; background: rgba(245,158,11,.1); }
  .cta-section h2 { font-size: 30px; font-weight: 800; position: relative; z-index: 2; }
  .cta-section p { margin-top: 12px; color: rgba(255,255,255,.75); max-width: 520px; margin-left: auto; margin-right: auto; position: relative; z-index: 2; }
  .cta-actions { margin-top: 28px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 2; }

  /* ===== Footer ===== */
  .site-footer { background: var(--brand-950); color: rgba(255,255,255,.78); padding: 64px 0 30px; margin-top: 88px; }
  .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.08); }
  .footer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 19px; font-weight: 800; margin-bottom: 14px; }
  .footer-brand .logo-mark { width: 34px; height: 34px; font-size: 14px; border-radius: 10px; }
  .footer-desc { font-size: 14px; color: rgba(255,255,255,.58); line-height: 1.75; max-width: 300px; }
  .footer-links-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
  .footer-links li, .footer-contact li { margin-bottom: 10px; }
  .footer-links a { font-size: 14px; color: rgba(255,255,255,.62); }
  .footer-links a:hover { color: var(--warm, #fbbf24); padding-left: 4px; }
  .footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.62); }
  .footer-contact i { color: var(--warm, #fbbf24); width: 16px; text-align: center; }
  .footer-bottom { padding-top: 26px; text-align: center; }
  .footer-bottom p { font-size: 13px; color: rgba(255,255,255,.45); }
  .footer-bottom a { color: rgba(255,255,255,.65); }
  .footer-bottom a:hover { color: var(--warm, #fbbf24); }

  /* ===== 响应式 ===== */
  @media (max-width: 1024px) {
    .method-grid, .steps-wrap { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .trouble-grid { grid-template-columns: repeat(2, 1fr); }
    .security-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
    .search-box input { width: 150px; }
    .search-box input:focus { width: 180px; }
    .brand-text { font-size: 16px; }
  }
  @media (max-width: 768px) {
    .container-root { padding: 0 20px; }
    .section-pad { padding: 60px 0; }
    .header-row { height: 64px; gap: 12px; }
    .main-nav {
      position: absolute; top: 64px; left: 0; right: 0;
      background: #fff; flex-direction: column; align-items: stretch;
      padding: 16px 20px 20px; border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-md); gap: 4px;
      transform: translateY(-12px); opacity: 0; pointer-events: none;
      transition: var(--transition); z-index: -1;
    }
    .main-nav.nav-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .main-nav a { padding: 12px 16px; border-radius: 10px; text-align: center; }
    .nav-toggle { display: flex; }
    .search-box { display: none; }
    .page-hero h1 { font-size: 32px; }
    .page-hero { padding: 48px 0 64px; }
    .steps-wrap { grid-template-columns: 1fr; }
    .step-arrow { display: none; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,.1); }
    .security-band { padding: 36px 28px; }
    .security-grid { grid-template-columns: 1fr; }
    .cta-section { padding: 40px 28px; }
    .cta-section h2 { font-size: 24px; }
  }
  @media (max-width: 520px) {
    .method-grid, .trouble-grid, .stats-grid, .footer-grid { grid-template-columns: 1fr; }
    .method-grid, .trouble-grid { gap: 16px; }
    .brand-text { font-size: 15px; }
    .logo-mark { width: 34px; height: 34px; }
    .page-hero h1 { font-size: 27px; }
    .hero-sub { font-size: 15px; }
    .btn { padding: 10px 22px; font-size: 14px; }
    .btn-lg { padding: 14px 30px; font-size: 16px; }
    .section-title { font-size: 24px; }
    .security-note { flex-direction: column; align-items: flex-start; gap: 8px; }
    .stat-value { font-size: 28px; }
  }

/* roulang page: article */
:root {
        --brand: #0fb5ae;
        --brand-dark: #0ea19a;
        --navy: #0f2a43;
        --navy-light: #1e3a5f;
        --bg: #f6f8fb;
        --surface: #ffffff;
        --text: #1e293b;
        --text-weak: #64748b;
        --border: #e2e8f0;
        --radius: 16px;
        --radius-sm: 10px;
        --shadow-card: 0 10px 30px rgba(15,42,67,0.08);
        --shadow-hover: 0 18px 40px rgba(15,42,67,0.14);
        --transition: all .25s ease;
      }
      *, *::before, *::after { box-sizing: border-box; }
      html { scroll-behavior: smooth; }
      body {
        margin: 0;
        font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        background: var(--bg);
        color: var(--text);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
      }
      img { max-width: 100%; height: auto; display: block; }
      a { color: inherit; text-decoration: none; transition: var(--transition); }
      button, input, select, textarea { font: inherit; }
      ul, ol { margin: 0; }

      .container-root { width: min(1200px, 92%); margin-inline: auto; }

      .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background: rgba(255,255,255,0.92);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(226,232,240,0.7);
      }
      .header-row { display: flex; align-items: center; min-height: 72px; gap: 28px; }
      .brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
      .logo-mark {
        width: 38px; height: 38px;
        border-radius: 11px;
        background: linear-gradient(135deg, #0fb5ae 0%, #0d5c8c 100%);
        color: #fff;
        display: flex; align-items: center; justify-content: center;
        box-shadow: 0 6px 16px rgba(15,181,174,0.35);
        font-size: 16px;
      }
      .brand-text { font-size: 20px; font-weight: 700; color: var(--navy); letter-spacing: 0.02em; white-space: nowrap; }
      .main-nav { display: flex; align-items: center; gap: 6px; flex-wrap: nowrap; }
      .main-nav a {
        padding: 8px 18px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 500;
        color: #475569;
        transition: var(--transition);
        white-space: nowrap;
      }
      .main-nav a:hover { color: var(--navy); background: #f1f5f9; }
      .main-nav a.active { background: var(--navy); color: #fff; box-shadow: 0 6px 14px rgba(15,42,67,0.18); }
      .header-actions { margin-left: auto; display: flex; align-items: center; gap: 14px; }

      .btn {
        display: inline-flex; align-items: center; justify-content: center; gap: 8px;
        padding: 12px 26px; border-radius: 999px; font-size: 14px; font-weight: 600;
        line-height: 1.2; transition: var(--transition); border: none; cursor: pointer;
      }
      .btn-primary { background: linear-gradient(135deg, #0fb5ae, #0d5c8c); color: #fff; box-shadow: 0 8px 20px rgba(15,181,174,0.25); }
      .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(15,181,174,0.35); }
      .btn-light { background: #fff; color: var(--navy); box-shadow: 0 8px 20px rgba(15,42,67,0.12); }
      .btn-light:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(15,42,67,0.18); }
      .btn-outline { background: transparent; border: 1.5px solid rgba(255,255,255,0.65); color: #fff; }
      .btn-outline:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }
      .btn-sm { padding: 8px 18px; font-size: 13px; }

      .badge {
        display: inline-flex; align-items: center; gap: 6px;
        padding: 6px 14px; border-radius: 999px;
        font-size: 12px; font-weight: 600;
        background: rgba(255,255,255,0.16);
        color: #fff;
        border: 1px solid rgba(255,255,255,0.22);
        backdrop-filter: blur(4px);
      }
      .badge-light { background: #e8fbf9; color: #0d7a75; border: 1px solid #b5f0ec; }

      .card-base {
        background: var(--surface);
        border-radius: var(--radius);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-card);
        transition: var(--transition);
      }
      .card-base:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }

      .article-hero {
        position: relative;
        background: linear-gradient(135deg, rgba(15,42,67,0.94), rgba(13,92,140,0.86)), url('/assets/images/backpic/back-1.png') center/cover;
        padding: 88px 0 76px;
        color: #fff;
      }
      .article-hero .hero-inner { max-width: 880px; }
      .hero-crumb { font-size: 13px; color: rgba(255,255,255,0.75); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
      .hero-crumb a:hover { color: #fff; }
      .hero-crumb .sep { opacity: 0.5; }
      .article-hero-title {
        font-size: clamp(28px, 4.2vw, 42px);
        font-weight: 800;
        line-height: 1.28;
        margin: 18px 0 14px;
        letter-spacing: -0.01em;
      }
      .hero-meta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; font-size: 13px; color: rgba(255,255,255,0.82); }
      .hero-meta i { margin-right: 6px; color: rgba(15,181,174,0.9); }
      .article-hero-desc { margin-top: 18px; font-size: 15px; color: rgba(255,255,255,0.78); max-width: 720px; line-height: 1.8; }

      .article-main-section { padding: 48px 0 64px; }
      .article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 322px; gap: 32px; align-items: start; }

      .article-body { padding: 42px 48px 36px; }
      .article-content { font-size: 16px; color: #334155; line-height: 1.9; }
      .article-content h2 {
        font-size: 24px;
        font-weight: 700;
        color: var(--navy);
        margin: 36px 0 16px;
        padding-left: 14px;
        border-left: 4px solid var(--brand);
        line-height: 1.4;
      }
      .article-content h3 { font-size: 19px; font-weight: 700; color: var(--navy); margin: 28px 0 12px; }
      .article-content p { margin-bottom: 18px; }
      .article-content ul, .article-content ol { padding-left: 1.5em; margin-bottom: 18px; }
      .article-content li { margin-bottom: 8px; }
      .article-content blockquote {
        border-left: 4px solid var(--brand);
        background: #f0fdfa;
        padding: 16px 20px;
        border-radius: 0 12px 12px 0;
        margin: 24px 0;
        color: #0f6665;
      }
      .article-content a { color: #0d7a75; border-bottom: 1px solid rgba(13,122,117,0.3); }
      .article-content a:hover { border-color: #0d7a75; }
      .article-content img { border-radius: 14px; margin: 24px 0; }
      .article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
      .article-content table th, .article-content table td { border: 1px solid var(--border); padding: 12px 14px; text-align: left; }
      .article-content table th { background: #f8fafc; font-weight: 600; color: var(--navy); }

      .article-divider { height: 1px; background: var(--border); margin: 36px 0 24px; }
      .article-tag-list { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
      .article-tag {
        display: inline-flex; align-items: center; gap: 6px;
        padding: 6px 14px;
        border-radius: 999px;
        background: #f1f5f9;
        border: 1px solid var(--border);
        font-size: 12px;
        font-weight: 500;
        color: #475569;
      }

      .side-card {
        background: var(--surface);
        border-radius: var(--radius);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-card);
        padding: 24px;
      }
      .side-card + .side-card { margin-top: 20px; }
      .side-card-title {
        font-size: 16px;
        font-weight: 700;
        color: var(--navy);
        margin: 0 0 16px;
        display: flex;
        align-items: center;
        gap: 8px;
      }
      .side-card-title i { color: var(--brand); }
      .side-nav-list { display: grid; gap: 8px; }
      .side-nav-list a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 12px 14px;
        border-radius: 10px;
        background: #f8fafc;
        border: 1px solid transparent;
        font-size: 14px;
        font-weight: 500;
        color: #334155;
        transition: var(--transition);
      }
      .side-nav-list a:hover { background: #e8fbf9; border-color: #b5f0ec; color: #0d7a75; }
      .side-service-list { display: grid; gap: 14px; }
      .side-service-item { display: flex; gap: 12px; align-items: flex-start; }
      .side-service-icon {
        width: 38px; height: 38px;
        border-radius: 10px;
        background: linear-gradient(135deg, #ecfeff, #ccfbf1);
        color: #0d7a75;
        display: flex; align-items: center; justify-content: center;
        font-size: 15px;
        flex-shrink: 0;
      }
      .side-service-item strong { display: block; font-size: 14px; color: var(--navy); margin-bottom: 2px; }
      .side-service-item span { font-size: 13px; color: var(--text-weak); line-height: 1.55; }
      .side-contact-list { display: grid; gap: 12px; }
      .side-contact-list li { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #475569; }
      .side-contact-list li i { width: 20px; color: var(--brand); text-align: center; }

      .rel-section { padding: 64px 0; background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
      .section-header { margin-bottom: 36px; }
      .section-eyebrow { font-size: 13px; font-weight: 600; color: var(--brand); letter-spacing: 0.08em; }
      .section-title { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: var(--navy); margin: 6px 0 10px; letter-spacing: -0.01em; }
      .section-desc { font-size: 15px; color: var(--text-weak); max-width: 640px; }

      .rel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
      .rel-card {
        display: block;
        background: var(--surface);
        border-radius: var(--radius);
        border: 1px solid var(--border);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: var(--transition);
      }
      .rel-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
      .rel-card-cover { height: 180px; position: relative; overflow: hidden; }
      .rel-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
      .rel-card:hover .rel-card-cover img { transform: scale(1.06); }
      .rel-card-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(15,42,67,0.35)); }
      .rel-card-body { padding: 20px 22px 24px; }
      .rel-card-body h3 { font-size: 17px; font-weight: 700; color: var(--navy); margin: 0 0 8px; }
      .rel-card-body p { font-size: 13px; color: var(--text-weak); line-height: 1.7; margin: 0 0 14px; }
      .rel-card-link { font-size: 13px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; }
      .rel-card-link i { transition: transform .25s ease; }
      .rel-card:hover .rel-card-link i { transform: translateX(4px); }

      .faq-section { padding: 64px 0; }
      .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
      .faq-item {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 14px;
        padding: 24px;
        transition: var(--transition);
      }
      .faq-item:hover { box-shadow: var(--shadow-hover); border-color: #b5e8e2; }
      .faq-question { display: flex; align-items: flex-start; gap: 12px; font-weight: 600; color: var(--navy); font-size: 15px; }
      .faq-question i { color: var(--brand); margin-top: 2px; }
      .faq-answer { margin: 12px 0 0 26px; font-size: 14px; color: var(--text-weak); line-height: 1.75; }

      .cta-section {
        background: linear-gradient(135deg, #0f2a43 0%, #0d5c8c 100%);
        padding: 72px 0;
        position: relative;
        overflow: hidden;
      }
      .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-3.png') center/cover;
        opacity: 0.12;
      }
      .cta-inner { position: relative; z-index: 1; text-align: center; color: #fff; max-width: 720px; margin-inline: auto; }
      .cta-inner h2 { font-size: clamp(24px, 3.4vw, 36px); font-weight: 800; margin: 0 0 14px; line-height: 1.3; }
      .cta-inner p { font-size: 15px; color: rgba(255,255,255,0.8); margin-bottom: 28px; }

      .site-footer { background: #0b1e30; color: #94a3b8; padding-top: 72px; }
      .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
      .footer-brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: #fff; }
      .footer-desc { font-size: 14px; color: #94a3b8; line-height: 1.8; max-width: 340px; margin-top: 16px; }
      .footer-links-title { color: #fff; font-size: 15px; font-weight: 600; margin: 0 0 16px; }
      .footer-links { list-style: none; padding: 0; display: grid; gap: 10px; }
      .footer-links a { color: #cbd5e1; transition: var(--transition); font-size: 14px; }
      .footer-links a:hover { color: #0fb5ae; padding-left: 4px; }
      .footer-contact { list-style: none; padding: 0; display: grid; gap: 10px; font-size: 14px; }
      .footer-contact li { display: flex; align-items: center; gap: 10px; }
      .footer-contact i { color: #0fb5ae; width: 18px; text-align: center; }
      .footer-bottom { padding: 22px 0; text-align: center; font-size: 13px; color: #64748b; border-top: 1px solid rgba(255,255,255,0.05); }

      .not-found-section {
        min-height: 60vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 80px 20px;
      }
      .not-found-box { text-align: center; max-width: 480px; }
      .not-found-box .icon-circle {
        width: 84px; height: 84px;
        margin: 0 auto 24px;
        border-radius: 50%;
        background: linear-gradient(135deg, #ecfeff, #ccfbf1);
        display: flex; align-items: center; justify-content: center;
        font-size: 34px;
        color: #0d7a75;
      }
      .not-found-box h1 { font-size: 30px; font-weight: 800; color: var(--navy); margin: 0 0 12px; }
      .not-found-box p { font-size: 15px; color: var(--text-weak); margin-bottom: 28px; }

      @media (max-width: 1024px) {
        .article-layout { grid-template-columns: 1fr; }
        .article-sidebar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
        .side-card + .side-card { margin-top: 0; }
        .rel-grid { grid-template-columns: repeat(2, 1fr); }
        .footer-grid { grid-template-columns: 1fr 1fr; }
      }
      @media (max-width: 768px) {
        .site-header { position: static; }
        .header-row { flex-wrap: wrap; min-height: 0; padding: 14px 0; gap: 12px; }
        .main-nav { order: 3; width: 100%; overflow-x: auto; padding: 4px 0 8px; gap: 4px; -webkit-overflow-scrolling: touch; }
        .main-nav a { font-size: 13px; padding: 7px 14px; }
        .header-actions .btn-sm { display: none; }
        .article-hero { padding: 60px 0 52px; }
        .article-body { padding: 28px 20px; }
        .article-layout { gap: 24px; }
        .article-sidebar { grid-template-columns: 1fr; }
        .faq-grid { grid-template-columns: 1fr; }
        .rel-grid { grid-template-columns: 1fr; }
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
      }
      @media (max-width: 520px) {
        .brand-text { font-size: 17px; }
        .footer-grid { grid-template-columns: 1fr; }
        .hero-meta { gap: 12px; }
        .article-hero-title { font-size: 26px; }
        .section-title { font-size: 24px; }
      }

/* roulang page: category2 */
:root {
      --brand-primary: #143a8a;
      --brand-primary-dark: #0f2a66;
      --brand-accent: #0ea5e9;
      --brand-accent-light: #38bdf8;
      --bg-body: #f0f4f8;
      --bg-card: #ffffff;
      --text-main: #0b1f3a;
      --text-weak: #5b6b7f;
      --border-color: #e3e9f0;
      --radius-lg: 18px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.05), 0 4px 12px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 16px 32px -12px rgba(15, 23, 42, 0.16);
    }

    *,
    *::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;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s;
    }

    button,
    input {
      font-family: inherit;
    }

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

    /* ===== Header & Nav ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
    }

    .header-inner {
      display: flex;
      align-items: center;
      gap: 28px;
      height: 72px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      font-weight: 800;
      font-size: 18px;
      color: var(--text-main);
      letter-spacing: 0.3px;
    }

    .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, #143a8a, #0ea5e9);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 17px;
      box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 4px;
      flex: 1;
      min-width: 0;
      overflow-x: auto;
      scrollbar-width: none;
    }

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

    .main-nav a {
      padding: 8px 18px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      color: #40506b;
      white-space: nowrap;
      transition: background 0.2s, color 0.2s;
    }

    .main-nav a:hover {
      background: #eef4ff;
      color: var(--brand-primary);
    }

    .main-nav a.active {
      background: linear-gradient(135deg, #143a8a, #0ea5e9);
      color: #fff;
      box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
    }

    .header-search {
      display: flex;
      align-items: center;
      background: #f1f5f9;
      border-radius: 999px;
      padding: 6px 6px 6px 16px;
      gap: 8px;
      border: 1px solid transparent;
      transition: border-color 0.2s, background 0.2s;
      flex-shrink: 0;
    }

    .header-search:focus-within {
      border-color: var(--brand-accent);
      background: #fff;
    }

    .header-search input {
      border: none;
      outline: none;
      background: transparent;
      font-size: 14px;
      width: 140px;
      color: var(--text-main);
    }

    .header-search button {
      background: linear-gradient(135deg, #143a8a, #0ea5e9);
      color: #fff;
      border: none;
      border-radius: 999px;
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 14px;
      transition: opacity 0.2s;
    }

    .header-search button:hover {
      opacity: 0.85;
    }

    /* ===== Hero ===== */
    .page-hero {
      position: relative;
      background-size: cover;
      background-position: center;
      padding: 96px 0 88px;
      color: #fff;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(7, 15, 32, 0.82) 0%, rgba(13, 42, 80, 0.7) 55%, rgba(14, 165, 233, 0.45) 100%);
      border-radius: 0;
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.3);
      backdrop-filter: blur(6px);
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 500;
      letter-spacing: 1px;
      margin-bottom: 24px;
    }

    .live-dot {
      width: 8px;
      height: 8px;
      background: #22d3ee;
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.25);
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0%,
      100% {
        box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
      }
      50% {
        box-shadow: 0 0 0 7px rgba(34, 211, 238, 0.06);
      }
    }

    .page-hero h1 {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 16px;
      letter-spacing: 1px;
    }

    .hero-subtitle {
      font-size: 18px;
      max-width: 680px;
      color: rgba(255, 255, 255, 0.88);
      margin-bottom: 32px;
    }

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

    .btn-primary,
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 999px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      border: none;
      transition: all 0.2s;
    }

    .btn-primary {
      background: #fff;
      color: #143a8a;
      box-shadow: 0 4px 16px rgba(255, 255, 255, 0.22);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 255, 255, 0.3);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.4);
      backdrop-filter: blur(4px);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.22);
      transform: translateY(-2px);
    }

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

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 700;
      color: var(--brand-accent);
      letter-spacing: 3px;
      text-transform: uppercase;
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      color: var(--text-weak);
      font-size: 16px;
      max-width: 720px;
    }

    /* ===== Category Cards ===== */
    .category-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 44px;
    }

    .category-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      transition: transform 0.28s, box-shadow 0.28s;
      position: relative;
    }

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

    .category-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      transition: transform 0.35s;
    }

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

    .category-card-body {
      padding: 22px 20px 24px;
    }

    .category-card-body h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .category-card-body p {
      color: var(--text-weak);
      font-size: 14px;
      line-height: 1.6;
    }

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

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

    /* ===== Data Panel ===== */
    .data-panel {
      background: linear-gradient(135deg, #0b1f3a 0%, #143a8a 60%, #0ea5e9 130%);
      border-radius: 24px;
      padding: 48px 40px;
      color: #fff;
      position: relative;
      overflow: hidden;
      margin-top: 20px;
    }

    .data-panel::after {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(56, 189, 248, 0.18);
      top: -80px;
      right: -60px;
    }

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

    .data-item {
      text-align: center;
      padding: 12px 8px;
      border-radius: var(--radius-md);
      transition: background 0.2s;
    }

    .data-item:hover {
      background: rgba(255, 255, 255, 0.08);
    }

    .data-number {
      font-size: 42px;
      font-weight: 900;
      line-height: 1;
      background: linear-gradient(180deg, #fff, #bae6fd);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 8px;
      display: block;
    }

    .data-label {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.72);
      letter-spacing: 1px;
    }

    /* ===== News List ===== */
    .news-list {
      margin-top: 44px;
      border-radius: var(--radius-lg);
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      overflow: hidden;
    }

    .news-item {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      padding: 24px 28px;
      border-bottom: 1px solid var(--border-color);
      transition: background 0.2s;
    }

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

    .news-item:hover {
      background: #f8fbfe;
    }

    .news-date {
      flex-shrink: 0;
      width: 64px;
      text-align: center;
      padding: 10px 6px;
      background: #f0f6fc;
      border-radius: var(--radius-md);
      font-weight: 800;
      color: var(--brand-primary);
      line-height: 1.2;
    }

    .news-date small {
      font-size: 12px;
      font-weight: 500;
      color: var(--text-weak);
      display: block;
      margin-top: 2px;
    }

    .news-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 999px;
      background: #e0f2fe;
      color: #0369a1;
      margin-bottom: 6px;
      letter-spacing: 0.5px;
    }

    .news-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 4px;
      transition: color 0.2s;
    }

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

    .news-summary {
      color: var(--text-weak);
      font-size: 14px;
      line-height: 1.6;
      max-width: 700px;
    }

    .news-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-top: 10px;
      font-size: 13px;
      color: #97a6b5;
    }

    .news-meta i {
      margin-right: 4px;
    }

    /* ===== Gallery ===== */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 44px;
    }

    .gallery-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      cursor: pointer;
      box-shadow: var(--shadow-card);
      aspect-ratio: 16 / 11;
    }

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

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

    .gallery-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 30%, rgba(5, 15, 34, 0.78) 100%);
      display: flex;
      align-items: flex-end;
      padding: 20px;
      opacity: 0;
      transition: opacity 0.3s;
    }

    .gallery-card:hover .gallery-overlay {
      opacity: 1;
    }

    .gallery-overlay span {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
    }

    /* ===== Feature Topics ===== */
    .topic-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-top: 44px;
    }

    .topic-card {
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      transition: transform 0.28s, box-shadow 0.28s;
    }

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

    .topic-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .topic-body {
      padding: 24px;
      flex: 1;
    }

    .topic-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: #fff;
      background: linear-gradient(135deg, #143a8a, #0ea5e9);
      padding: 3px 12px;
      border-radius: 999px;
      margin-bottom: 10px;
    }

    .topic-title {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .topic-desc {
      color: var(--text-weak);
      font-size: 14px;
      line-height: 1.7;
    }

    /* ===== FAQ ===== */
    .faq-grid {
      max-width: 860px;
      margin: 0 auto;
      margin-top: 44px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 28px;
      box-shadow: var(--shadow-card);
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .faq-item:hover {
      border-color: #b6d7f5;
      box-shadow: var(--shadow-hover);
    }

    .faq-item h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .faq-item h3 i {
      color: var(--brand-accent);
      font-size: 16px;
    }

    .faq-item p {
      color: var(--text-weak);
      font-size: 15px;
      line-height: 1.75;
      padding-left: 26px;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: linear-gradient(135deg, #0b1f3a 0%, #143a8a 55%, #0ea5e9 130%);
      border-radius: 28px;
      padding: 68px 56px;
      color: #fff;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.04);
      top: -120px;
      right: -100px;
    }

    .cta-section h2 {
      font-size: 32px;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .cta-section p {
      max-width: 560px;
      margin: 0 auto 30px;
      color: rgba(255, 255, 255, 0.8);
      font-size: 16px;
    }

    .cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: #fff;
      color: #143a8a;
      padding: 14px 36px;
      border-radius: 999px;
      font-size: 17px;
      font-weight: 700;
      box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .cta-btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 32px rgba(255, 255, 255, 0.3);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #0b1b35;
      color: #a8b8c8;
      margin-top: 80px;
      padding: 64px 0 0;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
      gap: 40px;
      padding-bottom: 48px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .logo-mark {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: linear-gradient(135deg, #1d4ed8, #0ea5e9);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
    }

    .footer-desc {
      font-size: 14px;
      line-height: 1.8;
      color: #8b9bad;
      max-width: 320px;
    }

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

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

    .footer-links a {
      color: #8b9bad;
      font-size: 14px;
      transition: color 0.2s;
    }

    .footer-links a:hover {
      color: #38bdf8;
    }

    .footer-contact {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
      color: #8b9bad;
    }

    .footer-contact i {
      width: 20px;
      color: #38bdf8;
      margin-right: 6px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 22px 0;
      text-align: center;
      font-size: 13px;
      color: #6d7d8f;
    }

    .footer-bottom a {
      color: #38bdf8;
    }

    /* ===== Utilities ===== */
    .text-accent {
      color: var(--brand-accent);
    }

    .bg-muted {
      background: #eaf1f8;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .category-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .data-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }

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

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

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

      .header-search {
        display: none;
      }

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

    @media (max-width: 768px) {
      .section-block {
        padding: 56px 0;
      }

      .section-title {
        font-size: 26px;
      }

      .header-inner {
        gap: 16px;
        height: 64px;
      }

      .brand {
        font-size: 15px;
      }

      .brand .logo-mark {
        width: 34px;
        height: 34px;
        font-size: 14px;
      }

      .main-nav a {
        padding: 7px 14px;
        font-size: 14px;
      }

      .page-hero {
        padding: 68px 0 60px;
      }

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

      .hero-subtitle {
        font-size: 16px;
      }

      .cta-section {
        padding: 48px 24px;
        border-radius: 22px;
      }

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

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

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

      .data-grid {
        grid-template-columns: 1fr 1fr;
        gap: 18px;
      }

      .data-number {
        font-size: 34px;
      }

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

      .news-item {
        flex-direction: column;
        gap: 12px;
        padding: 20px;
      }

      .news-date {
        width: auto;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 12px;
        font-size: 14px;
      }

      .news-date small {
        display: inline;
        margin: 0;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .cta-section {
        padding: 40px 20px;
      }

      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .btn-primary,
      .btn-ghost {
        justify-content: center;
      }
    }

/* roulang page: category3 */
:root {
            --c-primary: #11785f;
            --c-primary-600: #11785f;
            --c-primary-700: #0e634e;
            --c-accent: #14b8a6;
            --c-bg: #f6f9f8;
            --c-text: #1e293b;
            --c-text-soft: #64748b;
            --c-border: #e2e8f0;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-card: 0 4px 24px rgba(13, 79, 64, 0.08);
            --shadow-hover: 0 12px 40px rgba(13, 79, 64, 0.16);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--c-bg);
            color: var(--c-text);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input,
        select,
        textarea {
            font-family: inherit;
        }

        /* 容器 */
        .container-root {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (max-width: 640px) {
            .container-root {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* 吸顶导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 1px 12px rgba(15, 23, 42, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: .6rem;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #14b8a6, #11785f);
            color: #fff;
            border-radius: 10px;
            font-size: 1rem;
            box-shadow: 0 6px 16px rgba(17, 120, 95, 0.3);
        }
        .brand-text {
            font-size: 1.05rem;
            font-weight: 700;
            color: #0f172a;
            letter-spacing: .01em;
            line-height: 1.25;
        }
        .brand-text .brand-sub {
            display: block;
            font-size: .7rem;
            font-weight: 500;
            color: #64748b;
            letter-spacing: .08em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: .25rem;
            flex: 1;
            justify-content: flex-end;
        }
        .main-nav a {
            padding: .5rem 0.95rem;
            border-radius: 999px;
            font-size: .925rem;
            font-weight: 500;
            color: #334155;
            transition: background .2s, color .2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: #effaf6;
            color: #11785f;
        }
        .main-nav a.active {
            background: #11785f;
            color: #fff;
            box-shadow: 0 4px 12px rgba(17, 120, 95, 0.3);
        }

        .header-search {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border: 1px solid #e2e8f0;
            border-radius: 999px;
            padding: .3rem .3rem .3rem 1rem;
            width: 240px;
            transition: border-color .2s, box-shadow .2s;
        }
        .header-search:focus-within {
            border-color: #14b8a6;
            box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
            background: #fff;
        }
        .header-search input {
            border: none;
            outline: none;
            background: transparent;
            font-size: .85rem;
            width: 100%;
            color: #1e293b;
        }
        .header-search .search-btn {
            background: #11785f;
            border: none;
            color: #fff;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .75rem;
            flex-shrink: 0;
            transition: background .2s, transform .2s;
        }
        .header-search .search-btn:hover {
            background: #0e634e;
            transform: scale(1.05);
        }

        .menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid #e2e8f0;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            font-size: 1rem;
            color: #334155;
            align-items: center;
            justify-content: center;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: linear-gradient(135deg, rgba(11, 31, 42, 0.85), rgba(13, 79, 64, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            padding: 5.5rem 0 6rem;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(45, 212, 191, 0.15);
            filter: blur(60px);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            background: rgba(45, 212, 191, 0.18);
            border: 1px solid rgba(45, 212, 191, 0.35);
            color: #a7f3d0;
            font-size: .85rem;
            font-weight: 600;
            padding: .35rem .9rem;
            border-radius: 999px;
            margin-bottom: 1.2rem;
        }
        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }
        .hero h1 span {
            color: #5eead4;
        }
        .hero p {
            font-size: 1.1rem;
            color: #cbd5e1;
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }
        .hero-search {
            display: flex;
            align-items: center;
            background: #fff;
            border-radius: 999px;
            padding: .4rem .4rem .4rem 1.4rem;
            max-width: 560px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
        }
        .hero-search input {
            flex: 1;
            border: none;
            outline: none;
            font-size: .95rem;
            color: #1e293b;
            background: transparent;
            padding: .5rem 0;
        }
        .hero-search button {
            background: linear-gradient(135deg, #14b8a6, #11785f);
            border: none;
            color: #fff;
            font-weight: 600;
            font-size: .9rem;
            padding: .65rem 1.4rem;
            border-radius: 999px;
            transition: transform .2s, box-shadow .2s;
            white-space: nowrap;
        }
        .hero-search button:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(20, 184, 166, 0.4);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 4.5rem 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 3rem;
        }
        .section-tag {
            display: inline-block;
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .12em;
            text-transform: uppercase;
            color: #11785f;
            background: #effaf6;
            border: 1px solid #d3f0e5;
            padding: .3rem .85rem;
            border-radius: 999px;
            margin-bottom: .8rem;
        }
        .section-head h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.5rem);
            font-weight: 800;
            color: #0f172a;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: .8rem;
        }
        .section-head p {
            color: #64748b;
            font-size: 1rem;
            line-height: 1.7;
        }

        /* ===== 卡片 ===== */
        .help-card {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: var(--radius-xl);
            padding: 1.75rem;
            transition: transform .25s, box-shadow .25s, border-color .25s;
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
        }
        .help-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: #99e0c9;
        }
        .help-card .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 1.1rem;
            background: #effaf6;
            color: #11785f;
        }
        .help-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: .5rem;
        }
        .help-card p {
            color: #64748b;
            font-size: .9rem;
            line-height: 1.65;
            flex: 1;
        }
        .help-card .card-link {
            margin-top: 1rem;
            font-size: .88rem;
            font-weight: 600;
            color: #11785f;
            display: inline-flex;
            align-items: center;
            gap: .3rem;
            transition: gap .2s;
        }
        .help-card .card-link:hover {
            gap: .6rem;
            color: #0e634e;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid #e2e8f0;
            border-radius: 1rem;
            background: #fff;
            margin-bottom: .8rem;
            overflow: hidden;
            transition: border-color .2s, box-shadow .2s;
        }
        .faq-item.active {
            border-color: #99e0c9;
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.15rem 1.4rem;
            cursor: pointer;
            font-weight: 600;
            color: #1e293b;
            font-size: .98rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question .faq-icon {
            margin-left: auto;
            color: #11785f;
            transition: transform .3s;
            font-size: .8rem;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #effaf6;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: #11785f;
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-answer-inner {
            padding: 0 1.4rem 1.2rem;
            color: #475569;
            font-size: .9rem;
            line-height: 1.75;
            border-top: 1px dashed #e2e8f0;
            padding-top: 1rem;
        }

        /* ===== 流程 ===== */
        .step-card {
            position: relative;
            text-align: center;
            padding: 2rem 1.25rem;
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: var(--radius-xl);
            transition: transform .25s, box-shadow .25s;
            height: 100%;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, #14b8a6, #11785f);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 6px 16px rgba(17, 120, 95, 0.25);
        }
        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: .4rem;
        }
        .step-card p {
            font-size: .85rem;
            color: #64748b;
            line-height: 1.6;
        }
        .step-arrow {
            text-align: center;
            align-self: center;
            color: #bbf7d0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        @media (max-width: 768px) {
            .step-arrow {
                transform: rotate(90deg);
            }
        }

        /* ===== 统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-item {
            text-align: center;
            padding: 2rem 1rem;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-xl);
            backdrop-filter: blur(4px);
            transition: background .3s, border-color .3s;
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(94, 234, 212, 0.3);
        }
        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #5eead4;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-label {
            font-size: .88rem;
            color: #cbd5e1;
            margin-top: .4rem;
        }

        /* ===== 图文 ===== */
        .guide-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .guide-image {
            border-radius: 1.5rem;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid #e2e8f0;
        }
        .guide-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .guide-content .check-list {
            list-style: none;
            margin-top: 1.4rem;
        }
        .guide-content .check-list li {
            display: flex;
            align-items: flex-start;
            gap: .6rem;
            margin-bottom: .85rem;
            color: #334155;
            font-size: .95rem;
        }
        .guide-content .check-list li i {
            color: #11785f;
            margin-top: .2rem;
            font-size: .9rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0b1f2a, #0e4f40);
            border-radius: 1.75rem;
            padding: 3.5rem 3rem;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            right: -60px;
            bottom: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(45, 212, 191, 0.15);
            filter: blur(50px);
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: .6rem;
        }
        .cta-section p {
            color: #94a3b8;
            font-size: 1rem;
            max-width: 460px;
            margin: 0 auto 1.8rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            padding: .8rem 1.8rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: .95rem;
            border: none;
            transition: transform .2s, box-shadow .2s, background .2s;
        }
        .btn-primary {
            background: linear-gradient(135deg, #14b8a6, #11785f);
            color: #fff;
            box-shadow: 0 6px 20px rgba(20, 184, 166, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(20, 184, 166, 0.45);
        }
        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #e2e8f0;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0b1f2a;
            color: #94a3b8;
            padding: 4rem 0 0;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: .6rem;
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: .8rem;
        }
        .footer-desc {
            font-size: .88rem;
            line-height: 1.7;
            color: #64748b;
        }
        .footer-links-title {
            font-size: 1rem;
            color: #e2e8f0;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: .55rem;
        }
        .footer-links a {
            font-size: .88rem;
            color: #94a3b8;
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: #5eead4;
            padding-left: 4px;
        }
        .footer-contact {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: .65rem;
        }
        .footer-contact li {
            font-size: .88rem;
            color: #94a3b8;
            display: flex;
            align-items: center;
            gap: .5rem;
        }
        .footer-contact li i {
            color: #5eead4;
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            padding: 1.5rem 0;
            text-align: center;
            font-size: .82rem;
            color: #64748b;
        }
        .footer-bottom a {
            color: #94a3b8;
        }
        .footer-bottom a:hover {
            color: #5eead4;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .header-search {
                width: 180px;
            }
            .main-nav a {
                padding: .45rem .7rem;
                font-size: .88rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: auto;
                flex-wrap: wrap;
                padding-top: .8rem;
                padding-bottom: .8rem;
                gap: .8rem;
            }
            .header-search {
                order: 3;
                width: 100%;
                display: none;
            }
            .header-search.open {
                display: flex;
            }
            .main-nav {
                order: 4;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: .3rem;
                display: none;
                background: #fff;
                border-radius: 14px;
                padding: .8rem;
                border: 1px solid #e2e8f0;
                box-shadow: var(--shadow-card);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: .65rem 1rem;
                border-radius: 10px;
                text-align: center;
            }
            .menu-toggle {
                display: inline-flex;
                margin-left: auto;
            }
            .brand-logo {
                flex: 1;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-block {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .guide-image img {
                height: 280px;
            }
            .cta-section {
                padding: 2.5rem 1.5rem;
                border-radius: 1.25rem;
            }
            .hero {
                padding: 4rem 0 4.5rem;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            .stats-grid {
                gap: 1rem;
            }
            .stat-item {
                padding: 1.4rem .8rem;
            }
            .stat-num {
                font-size: 1.7rem;
            }
            .hero-search {
                flex-direction: column;
                border-radius: 20px;
                padding: .8rem;
                gap: .6rem;
            }
            .hero-search input {
                width: 100%;
                padding: .4rem .6rem;
            }
            .hero-search button {
                width: 100%;
            }
            .section {
                padding: 3rem 0;
            }
            .brand-text {
                font-size: .95rem;
            }
            .logo-mark {
                width: 34px;
                height: 34px;
                font-size: .85rem;
            }
        }