/* roulang page: index */
:root {
  --primary: #2B6EB2;
  --primary-dark: #1D4E7E;
  --primary-light: #EFF6FC;
  --accent: #F25C3A;
  --text: #1F2937;
  --text-secondary: #6B7280;
  --border: #E5E7EB;
  --bg: #F8FAFC;
  --white: #ffffff;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 2px 8px rgba(27,58,90,0.06);
  --shadow-hover: 0 8px 24px rgba(27,58,90,0.12);
  --transition: 0.2s ease;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: var(--primary);
  transition: color var(--transition);
}
a:hover {
  color: var(--accent);
}
button {
  font-family: var(--font);
  cursor: pointer;
  border: none;
  background: none;
}
input {
  font-family: var(--font);
  outline: none;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn:focus-visible,
.icon-btn:focus-visible,
.menu-toggle:focus-visible,
a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(43,110,178,0.30);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-secondary:hover {
  background: rgba(43,110,178,0.08);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
}
.btn-sm {
  height: 36px;
  padding: 0 16px;
  font-size: 14px;
  border-radius: 8px;
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 8px;
  font-size: 12px;
  line-height: 18px;
  background: rgba(242,92,58,0.10);
  color: var(--accent);
  font-weight: 500;
}
.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
  font-size: 16px;
}
.icon-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
}

/* ===== Header 浮动 Dock 导航 ===== */
.site-header {
  position: fixed;
  top: 8px;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  padding: 0 16px;
}
.nav-dock {
  width: min(1100px, 94%);
  height: 60px;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 999px;
  border: 1px solid #E8EEF4;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
}
.logo-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.5px;
}
.logo-text:hover {
  color: var(--primary);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 16px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 999px;
  transition: all var(--transition);
}
.nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 18px;
  transition: background var(--transition);
}
.menu-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
}

/* ===== Hero ===== */
.hero {
  padding: 160px 0 96px;
  background: linear-gradient(160deg, var(--primary-light) 0%, var(--bg) 70%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(43,110,178,0.04);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(43,110,178,0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero-badge i {
  font-size: 12px;
}
.hero h1 {
  font-size: 36px;
  line-height: 44px;
  font-weight: 600;
  color: #111827;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero-sub {
  font-size: 16px;
  line-height: 28px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}
.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-meta i {
  color: var(--primary);
}
.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  aspect-ratio: 4/3;
  background: var(--primary-light);
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 通用区块标题 ===== */
.section-title {
  font-size: 26px;
  line-height: 34px;
  font-weight: 600;
  color: var(--text);
  position: relative;
  padding-bottom: 14px;
  margin-bottom: 16px;
}
.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  border-radius: 2px;
  background: var(--primary);
}
.section-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 680px;
}

/* ===== 合集目录 ===== */
.catalog {
  padding: 96px 0;
}
.catalog-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.catalog-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid transparent;
}
.catalog-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--primary-light);
}
.catalog-num {
  font-size: 24px;
  font-weight: 700;
  color: rgba(43,110,178,0.25);
  min-width: 48px;
  line-height: 1;
}
.catalog-info {
  flex: 1;
}
.catalog-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.catalog-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 22px;
}
.catalog-arrow {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all var(--transition);
  flex-shrink: 0;
}
.catalog-item:hover .catalog-arrow {
  background: var(--primary);
  color: var(--white);
  transform: translateX(4px);
}
.catalog-search {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 4px 4px 20px;
  margin-bottom: 32px;
  max-width: 480px;
  transition: all var(--transition);
}
.catalog-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(43,110,178,0.08);
}
.catalog-search input {
  flex: 1;
  border: none;
  font-size: 14px;
  color: var(--text);
  height: 36px;
  background: transparent;
}
.catalog-search input::placeholder {
  color: var(--text-secondary);
}
.catalog-search button {
  height: 36px;
  padding: 0 18px;
  border-radius: 16px;
  background: var(--primary);
  color: var(--white);
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition);
}
.catalog-search button:hover {
  background: var(--primary-dark);
}

/* ===== 精选条目 ===== */
.featured {
  padding: 96px 0;
  background: var(--white);
}
.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.featured-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--bg);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.featured-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.featured-cover {
  aspect-ratio: 3/2;
  overflow: hidden;
  background: var(--primary-light);
}
.featured-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.featured-card:hover .featured-cover img {
  transform: scale(1.03);
}
.featured-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.featured-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 26px;
}
.featured-body p {
  font-size: 14px;
  line-height: 24px;
  color: var(--text-secondary);
  flex: 1;
  margin-bottom: 16px;
}
.featured-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ===== 最新资讯 ===== */
.news {
  padding: 96px 0;
}
.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.news-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all var(--transition);
  border: 1px solid var(--bg);
}
.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.news-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}
.news-card-link:hover {
  color: inherit;
}
.news-thumb {
  aspect-ratio: 16/8;
  overflow: hidden;
  background: var(--primary-light);
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.03);
}
.news-body {
  padding: 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.news-body h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 24px;
  color: var(--text);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-body p {
  font-size: 14px;
  line-height: 22px;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.news-meta .date {
  font-size: 12px;
  color: var(--text-secondary);
}
.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 40px;
  background: var(--white);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  text-align: center;
}
.empty-state i {
  font-size: 32px;
  color: var(--border);
  margin-bottom: 12px;
}
.empty-state p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ===== 相关推荐 ===== */
.recommend {
  padding: 96px 0;
  background: var(--white);
}
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.rec-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--bg);
  transition: all var(--transition);
  display: block;
}
.rec-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.rec-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 16px;
}
.rec-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 22px;
  margin-bottom: 6px;
}
.rec-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 20px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 96px 0;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 860px;
}
.faq-item {
  background: var(--primary-light);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: all var(--transition);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  list-style: none;
  outline: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-style: normal;
  font-size: 13px;
  color: var(--primary);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(180deg);
}
.faq-answer {
  margin-top: 14px;
  font-size: 15px;
  line-height: 26px;
  color: var(--text-secondary);
  padding-right: 24px;
}

/* ===== CTA 收藏/分享 ===== */
.cta-section {
  padding: 96px 0;
  background: #F0F7FE;
}
.cta-box {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  box-shadow: var(--shadow);
}
.cta-box h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.cta-box p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.round-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid #B0C4DA;
  background: transparent;
  color: var(--primary);
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.round-btn:hover {
  background: rgba(242,92,58,0.10);
  border-color: var(--accent);
  color: var(--accent);
}
.round-btn-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}
.cta-actions .round-btn-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  top: 80px;
  right: 24px;
  background: rgba(31,41,55,0.9);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  pointer-events: none;
  z-index: 2000;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo-text {
  font-size: 18px;
  margin-bottom: 12px;
  display: inline-block;
}
.footer-brand p {
  font-size: 14px;
  line-height: 24px;
  color: var(--text-secondary);
  margin-top: 12px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 18px;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
}
.footer-col a:hover {
  color: var(--primary);
}
.footer-contact p {
  font-size: 14px;
  line-height: 26px;
  color: var(--text-secondary);
}
.footer-contact i {
  color: var(--primary);
  margin-right: 6px;
  width: 16px;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}
.footer-bottom a {
  color: var(--text-secondary);
}
.footer-bottom a:hover {
  color: var(--primary);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero {
    padding-top: 140px;
  }
  .hero-inner {
    gap: 32px;
  }
  .hero h1 {
    font-size: 30px;
    line-height: 40px;
  }
  .recommend-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 768px) {
  .site-header {
    top: 0;
    padding: 8px 12px;
  }
  .nav-dock {
    width: 100%;
    height: 56px;
    border-radius: 20px;
    padding: 0 12px;
  }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 12px;
    right: 12px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-hover);
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    margin: 0;
    gap: 4px;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: all 0.25s ease;
  }
  .main-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-link {
    justify-content: center;
    height: 44px;
  }
  .nav-link.active::after {
    bottom: 4px;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .nav-actions .btn-sm {
    display: none;
  }
  .hero {
    padding-top: 120px;
    padding-bottom: 64px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    order: 1;
  }
  .hero-visual {
    order: 2;
    max-width: 400px;
    margin: 0 auto;
  }
  .hero-sub {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions,
  .hero-meta {
    justify-content: center;
  }
  .catalog,
  .featured,
  .news,
  .recommend,
  .faq-section,
  .cta-section {
    padding: 64px 0;
  }
  .featured-grid,
  .news-list {
    grid-template-columns: 1fr;
  }
  .recommend-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .catalog-item {
    padding: 20px;
    gap: 16px;
  }
  .cta-box {
    padding: 40px 24px;
  }
}
@media (max-width: 520px) {
  .hero h1 {
    font-size: 26px;
    line-height: 36px;
  }
  .logo-text {
    font-size: 14px;
  }
  .recommend-grid {
    grid-template-columns: 1fr;
  }
  .catalog-num {
    min-width: 36px;
    font-size: 20px;
  }
  .catalog-info p {
    font-size: 13px;
  }
  .catalog-arrow {
    width: 32px;
    height: 32px;
  }
  .btn {
    width: 100%;
  }
  .hero-actions {
    flex-direction: column;
  }
  .cta-actions {
    flex-direction: row;
  }
  .footer-bottom {
    font-size: 12px;
  }
}

/* roulang page: article */
:root {
  --primary: #2B6EB2;
  --primary-dark: #1D4E7E;
  --primary-light: #EFF6FC;
  --primary-lighter: #F0F7FE;
  --accent: #F25C3A;
  --accent-bg: rgba(242, 92, 58, 0.10);
  --text: #1F2937;
  --text-secondary: #6B7280;
  --border: #E5E7EB;
  --bg: #F8FAFC;
  --white: #ffffff;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-btn: 10px;
  --shadow-sm: 0 2px 8px rgba(27, 58, 90, 0.06);
  --shadow-md: 0 8px 24px rgba(27, 58, 90, 0.12);
  --transition: 0.2s ease;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

button {
  cursor: pointer;
  font-family: var(--font);
}

input,
textarea {
  font-family: var(--font);
}

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

/* ---------- 浮动 Dock 导航 ---------- */
.main-nav {
  position: sticky;
  top: 8px;
  z-index: 100;
  max-width: min(1100px, 94%);
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid #E8EEF4;
  border-radius: 999px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.main-nav .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.main-nav .logo .logo-highlight {
  color: var(--primary);
}

.main-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav .nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 999px;
  transition: all 0.2s ease;
  position: relative;
}

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

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

.main-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

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

.main-nav .search-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.main-nav .search-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.main-nav .cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border: none;
  transition: all 0.2s ease;
}

.main-nav .cta-btn:hover {
  background: var(--primary-dark);
  color: #fff;
  box-shadow: 0 4px 14px rgba(43, 110, 178, 0.30);
}

.main-nav .mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 18px;
  align-items: center;
  justify-content: center;
}

/* ---------- 面包屑 ---------- */
.breadcrumb-wrap {
  padding: 32px 0 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-secondary);
  gap: 6px;
}

.breadcrumb a {
  color: var(--text-secondary);
  font-weight: 400;
  transition: color 0.2s ease;
}

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

.breadcrumb .separator {
  color: #C0CAD4;
  font-size: 12px;
}

.breadcrumb .current {
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 360px;
}

/* ---------- 文章标题区 ---------- */
.article-header {
  padding: 48px 0 32px;
  background: linear-gradient(180deg, var(--primary-lighter) 0%, var(--bg) 100%);
  border-radius: 0 0 24px 24px;
}

.article-header-inner {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  padding: 0 24px;
}

.article-header h1 {
  font-size: 32px;
  line-height: 42px;
  font-weight: 700;
  color: #111827;
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: var(--text-secondary);
}

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

.article-meta .meta-item i {
  color: var(--primary);
  font-size: 13px;
}

.article-meta .category-badge {
  display: inline-block;
  padding: 2px 12px;
  background: var(--accent-bg);
  color: var(--accent);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
}

/* ---------- 文章正文 ---------- */
.article-main {
  padding: 48px 0 64px;
}

.article-content-wrap {
  max-width: 760px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 48px 56px;
}

.article-content {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
}

.article-content h2 {
  font-size: 26px;
  line-height: 34px;
  font-weight: 600;
  color: var(--text);
  margin: 40px 0 16px;
}

.article-content h3 {
  font-size: 20px;
  line-height: 28px;
  font-weight: 600;
  color: var(--text);
  margin: 32px 0 12px;
}

.article-content p {
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 24px;
  color: var(--text);
}

.article-content ul,
.article-content ol {
  margin: 16px 0 24px;
  padding-left: 20px;
}

.article-content li {
  font-size: 16px;
  line-height: 28px;
  margin-bottom: 8px;
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  background: var(--primary-lighter);
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: var(--text-secondary);
  font-size: 16px;
}

.article-content img {
  border-radius: 12px;
  max-width: 100%;
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
}

.article-content figcaption {
  font-size: 14px;
  color: var(--text-secondary);
  text-align: center;
  margin-top: -16px;
  margin-bottom: 24px;
}

.article-content code {
  background: #F3F4F6;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
  color: #D33;
}

.article-content pre {
  background: #F8FAFC;
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--border);
}

.article-content pre code {
  background: transparent;
  padding: 0;
  color: var(--text);
}

.article-content a {
  color: var(--primary);
  border-bottom: 1px solid rgba(43, 110, 178, 0.3);
  transition: all 0.2s ease;
}

.article-content a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}

.article-content th,
.article-content td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
}

.article-content th {
  background: var(--primary-light);
  font-weight: 600;
}

/* ---------- 内容未找到 ---------- */
.not-found-state {
  text-align: center;
  padding: 80px 24px;
  max-width: 520px;
  margin: 0 auto;
}

.not-found-state .not-found-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}

.not-found-state h2 {
  font-size: 22px;
  color: var(--text);
  margin-bottom: 12px;
}

.not-found-state p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 24px;
}

.not-found-state .btn-primary {
  display: inline-block;
  padding: 12px 28px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.not-found-state .btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 14px rgba(43, 110, 178, 0.30);
}

/* ---------- 标签区 ---------- */
.article-tags-wrap {
  max-width: 760px;
  margin: 32px auto 0;
  padding: 0 24px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.article-tags-wrap .label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.article-tags-wrap .tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.article-tags-wrap .tag:hover {
  background: var(--accent-bg);
  color: var(--accent);
}

/* ---------- 上一篇 / 下一篇 ---------- */
.article-pagination {
  max-width: 760px;
  margin: 40px auto 0;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.article-pagination .page-link {
  display: flex;
  flex-direction: column;
  padding: 16px 20px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
  color: var(--text);
}

.article-pagination .page-link:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: var(--text);
}

.article-pagination .page-link .direction {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.article-pagination .page-link .title-text {
  font-size: 15px;
  font-weight: 600;
  line-height: 22px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-pagination .page-link.next {
  text-align: right;
}

/* ---------- 相关推荐 ---------- */
.related-posts {
  padding: 64px 0;
}

.related-posts .section-head {
  text-align: center;
  margin-bottom: 40px;
}

.related-posts .section-head .section-subtitle {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 8px;
  display: block;
}

.related-posts .section-head h2 {
  font-size: 28px;
  color: var(--text);
  font-weight: 700;
}

.related-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.related-card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  transition: all 0.2s ease;
}

.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.related-card .related-thumb {
  width: 200px;
  height: 130px;
  flex-shrink: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--primary-light);
}

.related-card .related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

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

.related-card .related-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  line-height: 24px;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card .related-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 22px;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card .related-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
}

.related-card .related-meta .date {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.related-card .related-meta .cat {
  display: inline-block;
  padding: 2px 10px;
  background: var(--accent-bg);
  color: var(--accent);
  border-radius: 8px;
  font-size: 12px;
}

/* ---------- 返回链接 ---------- */
.back-link-wrap {
  text-align: center;
  padding: 20px 0 0;
}

.back-link-wrap a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.back-link-wrap a:hover {
  color: var(--primary);
}

.back-link-wrap a i {
  font-size: 13px;
  transition: transform 0.2s ease;
}

.back-link-wrap a:hover i {
  transform: translateX(-3px);
}

/* ---------- FAQ 区块 ---------- */
.faq-section {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--bg) 0%, var(--primary-lighter) 100%);
}

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

.faq-section .section-subtitle {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 8px;
  display: block;
}

.faq-section .section-head h2 {
  font-size: 28px;
  color: var(--text);
  font-weight: 700;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-item.open {
  box-shadow: var(--shadow-md);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  gap: 16px;
  transition: background 0.2s ease;
}

.faq-question:hover {
  background: var(--primary-lighter);
}

.faq-question .fa-chevron-down {
  font-size: 14px;
  color: var(--primary);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.faq-item.open .fa-chevron-down {
  transform: rotate(180deg);
}

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

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  line-height: 26px;
  color: var(--text-secondary);
}

/* ---------- CTA 区块 ---------- */
.cta-section {
  padding: 80px 0;
  background: var(--white);
}

.cta-box {
  max-width: 900px;
  margin: 0 auto;
  background: var(--primary-lighter);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: var(--primary-light);
  border-radius: 50%;
  opacity: 0.6;
}

.cta-box::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -20px;
  width: 140px;
  height: 140px;
  background: var(--accent-bg);
  border-radius: 50%;
  opacity: 0.4;
}

.cta-box h2 {
  font-size: 24px;
  color: var(--text);
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-box p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  border: none;
  transition: all 0.2s ease;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  box-shadow: 0 4px 14px rgba(43, 110, 178, 0.30);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: rgba(43, 110, 178, 0.08);
  color: var(--primary);
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid rgba(43, 110, 178, 0.2);
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(43, 110, 178, 0.15);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.footer-brand .logo-text .logo-highlight {
  color: var(--primary);
}

.footer-brand p {
  font-size: 14px;
  line-height: 24px;
  color: var(--text-secondary);
  margin-top: 16px;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

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

.footer-contact p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-contact p i {
  color: var(--primary);
  font-size: 13px;
  width: 16px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 14px;
  color: var(--text-secondary);
}

.footer-bottom a {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .main-nav .nav-link {
    padding: 8px 12px;
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .main-nav {
    height: 56px;
    padding: 0 16px;
  }

  .main-nav .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 16px;
    right: 16px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    padding: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .main-nav .nav-links.open {
    display: flex;
  }

  .main-nav .nav-link {
    padding: 12px 16px;
    border-radius: 10px;
  }

  .main-nav .nav-link.active::after {
    display: none;
  }

  .main-nav .nav-link.active {
    background: var(--primary-light);
  }

  .main-nav .mobile-toggle {
    display: flex;
  }

  .main-nav .cta-btn span {
    display: none;
  }

  .main-nav .cta-btn {
    padding: 8px 14px;
  }

  .article-header h1 {
    font-size: 26px;
    line-height: 36px;
  }

  .article-content-wrap {
    padding: 32px 24px;
    border-radius: var(--radius);
  }

  .article-content p {
    font-size: 16px;
  }

  .article-pagination {
    grid-template-columns: 1fr;
  }

  .related-card {
    flex-direction: column;
    padding: 16px;
  }

  .related-card .related-thumb {
    width: 100%;
    height: 160px;
  }

  .cta-box {
    padding: 40px 24px;
  }

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

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

@media (max-width: 520px) {
  .article-meta {
    gap: 10px;
    font-size: 13px;
  }

  .article-meta .meta-item {
    gap: 4px;
  }

  .article-tags-wrap {
    gap: 8px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .faq-section {
    padding: 48px 0;
  }

  .related-posts {
    padding: 48px 0;
  }

  .cta-section {
    padding: 48px 0;
  }

  .cta-box h2 {
    font-size: 20px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #2B6EB2;
  --primary-dark: #1D4E7E;
  --primary-light: #EFF6FC;
  --accent: #F25C3A;
  --accent-bg: rgba(242,92,58,0.10);
  --text: #1F2937;
  --text-secondary: #6B7280;
  --border: #E5E7EB;
  --bg: #F8FAFC;
  --white: #ffffff;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --shadow: 0 2px 8px rgba(27,58,90,0.06);
  --shadow-hover: 0 8px 24px rgba(27,58,90,0.12);
  --transition: 0.2s ease;
  --container: 1200px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

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

/* ===== 顶部浮动 Dock 导航 ===== */
.site-header {
  position: sticky;
  top: 8px;
  z-index: 100;
  padding: 0 16px;
}
.main-nav {
  max-width: min(1100px, 94%);
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid #E8EEF4;
  border-radius: var(--radius-full);
  padding: 0 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}
.logo-text {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
  letter-spacing: 0.2px;
}
.logo-text i { font-size: 20px; color: var(--primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
  padding: 0 12px;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 6px 2px;
  position: relative;
  transition: color 0.2s;
  white-space: nowrap;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-nav:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 14px rgba(43,110,178,0.30);
  color: #fff !important;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text);
  transition: background 0.2s;
}
.nav-toggle:hover { background: var(--primary-light); }

/* ===== 页面标题区 ===== */
.page-head {
  padding: 72px 0 24px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #B8C4D0; font-size: 12px; }
.breadcrumb .current { color: var(--text-secondary); font-weight: 500; }
.page-head-main h1 {
  font-size: 36px;
  line-height: 44px;
  font-weight: 600;
  color: #111827;
  position: relative;
  padding-left: 18px;
  letter-spacing: 0.5px;
}
.page-head-main h1::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  border-radius: 4px;
  background: var(--primary);
}
.page-head-desc {
  margin-top: 18px;
  font-size: 17px;
  line-height: 30px;
  color: var(--text-secondary);
  max-width: 720px;
}

/* ===== 分类说明区 ===== */
.cat-intro {
  padding: 48px 0 32px;
}
.cat-intro-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  box-shadow: var(--shadow);
}
.cat-intro-text .cat-badge {
  display: inline-block;
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
}
.cat-intro-text p {
  font-size: 16px;
  line-height: 30px;
  color: var(--text);
}
.cat-intro-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  text-align: center;
}
.stat-item {
  background: var(--primary-light);
  border-radius: var(--radius);
  padding: 24px 10px;
}
.stat-num {
  display: block;
  font-size: 34px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.stat-label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 18px;
}

/* ===== 内容列表区 ===== */
.guide-list {
  padding: 64px 0 32px;
}
.section-head {
  margin-bottom: 40px;
}
.section-tag {
  display: inline-block;
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 8px;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 26px;
  line-height: 34px;
  font-weight: 600;
  color: #111827;
  margin-bottom: 10px;
}
.section-head p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 24px;
}
.guide-entries {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.guide-entry {
  display: flex;
  align-items: center;
  gap: 32px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.guide-entry:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.guide-thumb {
  flex-shrink: 0;
  width: 160px;
  height: 120px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--primary-light);
}
.guide-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.guide-body {
  flex: 1;
  min-width: 0;
}
.guide-body h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 26px;
  margin-bottom: 8px;
}
.guide-body h3 a { color: var(--text); }
.guide-body h3 a:hover { color: var(--primary); }
.guide-body p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 24px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.guide-meta {
  display: flex;
  align-items: center;
  gap: 16px;
}
.time-badge {
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 12px;
  font-weight: 500;
  padding: 3px 12px;
  border-radius: 8px;
  white-space: nowrap;
}
.read-more {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s, color 0.2s;
}
.read-more:hover { gap: 10px; color: var(--accent); }

/* ===== 登录流程步骤 ===== */
.login-steps {
  padding: 72px 0 32px;
  background-image: linear-gradient(rgba(255,255,255,0.92), rgba(255,255,255,0.96)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.step-num {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-light);
  display: block;
  line-height: 1;
  margin-bottom: 20px;
  transition: color 0.2s;
}
.step-card:hover .step-num { color: var(--primary); }
.step-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.step-card p {
  font-size: 14px;
  line-height: 24px;
  color: var(--text-secondary);
}

/* ===== 安全提示 ===== */
.safety-tips {
  padding: 64px 0 32px;
}
.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.tip-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.tip-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.tip-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 20px;
}
.tip-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
}
.tip-card p {
  font-size: 14px;
  line-height: 24px;
  color: var(--text-secondary);
}

/* ===== FAQ 折叠面板 ===== */
.faq-section {
  padding: 64px 0 32px;
}
.faq-panels {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 860px;
}
.faq-item {
  background: var(--primary-light);
  border-radius: var(--radius);
  padding: 0 24px;
  transition: background 0.2s;
}
.faq-item[open] { background: var(--white); box-shadow: var(--shadow); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i {
  font-size: 14px;
  color: var(--text-secondary);
  transition: transform 0.25s;
  flex-shrink: 0;
}
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-answer {
  padding: 0 0 22px;
}
.faq-answer p {
  font-size: 15px;
  line-height: 26px;
  color: var(--text-secondary);
}

/* ===== 搜索帮助 ===== */
.help-search {
  padding: 64px 0 32px;
}
.help-search-box {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  box-shadow: var(--shadow);
  flex-wrap: wrap;
}
.help-search-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
  flex-shrink: 0;
}
.help-search-text { flex: 1; min-width: 220px; }
.help-search-text h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}
.help-search-text p {
  font-size: 14px;
  color: var(--text-secondary);
}
.search-form {
  display: flex;
  align-items: center;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-full);
  padding: 4px 4px 4px 18px;
  min-width: 300px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(43,110,178,0.10);
}
.search-form input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--text);
  background: transparent;
  min-width: 0;
}
.search-form button {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.search-form button:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 14px rgba(43,110,178,0.30);
}

/* ===== CTA ===== */
.cta-section {
  padding: 72px 0 96px;
}
.cta-box {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  box-shadow: var(--shadow);
  max-width: 960px;
  margin: 0 auto;
}
.cta-box h2 {
  font-size: 28px;
  font-weight: 600;
  color: #111827;
  margin-bottom: 12px;
}
.cta-box p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff !important;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.2s;
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 14px rgba(43,110,178,0.30);
  transform: translateY(-1px);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary) !important;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.2s;
}
.btn-secondary:hover {
  background: rgba(43,110,178,0.15);
  transform: translateY(-1px);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .logo-text {
  font-size: 18px;
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 24px;
  margin-top: 14px;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.footer-col ul a:hover { color: var(--primary); }
.footer-contact p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-contact i { color: var(--primary); width: 16px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}
.footer-bottom a { color: var(--text-secondary); }
.footer-bottom a:hover { color: var(--primary); }

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 76px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--white);
    border-radius: 16px;
    padding: 20px 32px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    flex-direction: column;
    gap: 14px;
    z-index: 99;
    border: 1px solid var(--border);
    min-width: 200px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .nav-links { margin: 0 auto; }
  .main-nav { padding: 0 16px; }
  .btn-nav { display: none; }
  .cat-intro-grid { grid-template-columns: 1fr; gap: 32px; padding: 32px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .tips-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .search-form { min-width: 240px; flex: 1; }
  .help-search-box { padding: 28px 24px; }
}
@media (max-width: 768px) {
  .page-head { padding: 48px 0 16px; }
  .page-head-main h1 { font-size: 28px; line-height: 36px; }
  .page-head-desc { font-size: 15px; }
  .cat-intro { padding: 32px 0 16px; }
  .cat-intro-grid { padding: 24px 20px; }
  .guide-entry { flex-direction: column; align-items: flex-start; gap: 16px; padding: 20px; }
  .guide-thumb { width: 100%; height: 180px; }
  .steps-grid { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .faq-section { padding: 48px 0 16px; }
  .help-search { padding: 48px 0 16px; }
  .help-search-box { flex-direction: column; align-items: flex-start; gap: 16px; }
  .search-form { width: 100%; min-width: 0; }
  .cta-section { padding: 48px 0 64px; }
  .cta-box { padding: 40px 24px; }
  .cta-box h2 { font-size: 24px; }
  .cta-btns { flex-direction: column; }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand p { max-width: 100%; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .main-nav { padding: 0 12px; height: 56px; }
  .logo-text { font-size: 15px; }
  .cat-intro-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .stat-item { padding: 16px 8px; }
  .stat-num { font-size: 26px; }
  .stat-label { font-size: 12px; }
  .section-head h2 { font-size: 22px; }
  .guide-meta { gap: 10px; flex-wrap: wrap; }
  .time-badge { font-size: 11px; }
  .read-more { font-size: 13px; }
  .step-card { padding: 20px; }
  .faq-panels { gap: 12px; }
  .faq-item { padding: 0 16px; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* roulang page: category2 */
/* ===== Design Variables ===== */
    :root {
      --primary: #2B6EB2;
      --primary-dark: #1D4E7E;
      --primary-light: #EFF6FC;
      --accent: #F25C3A;
      --text: #1F2937;
      --text-secondary: #6B7280;
      --border: #E5E7EB;
      --bg: #F8FAFC;
      --white: #ffffff;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-pill: 999px;
      --shadow-sm: 0 2px 8px rgba(27, 58, 90, 0.06);
      --shadow-md: 0 8px 24px rgba(27, 58, 90, 0.12);
      --shadow-btn: 0 4px 14px rgba(43, 110, 178, 0.30);
      --transition: 0.2s ease;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: var(--primary);
      text-decoration: none;
      transition: color var(--transition);
    }
    a:hover {
      color: var(--accent);
    }
    img {
      max-width: 100%;
      display: block;
    }
    ul, ol {
      list-style: none;
    }
    button, input, textarea {
      font-family: inherit;
      font-size: inherit;
      border: none;
      outline: none;
    }
    a:focus-visible, button:focus-visible, input:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }

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

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 600;
      line-height: 1.4;
      cursor: pointer;
      transition: background var(--transition), box-shadow var(--transition), transform var(--transition), color var(--transition);
      min-height: 44px;
    }
    .btn-primary {
      background: var(--primary);
      color: var(--white);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: var(--shadow-btn);
      color: var(--white);
      transform: translateY(-1px);
    }
    .btn-secondary {
      background: rgba(43, 110, 178, 0.08);
      color: var(--primary);
      border: 1px solid rgba(43, 110, 178, 0.16);
    }
    .btn-secondary:hover {
      background: rgba(43, 110, 178, 0.12);
      color: var(--primary);
      transform: translateY(-1px);
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: sticky;
      top: 8px;
      z-index: 100;
      padding: 0 16px;
    }
    .main-nav {
      max-width: 1100px;
      width: 94%;
      margin: 0 auto;
      height: 60px;
      background: rgba(255, 255, 255, 0.86);
      backdrop-filter: blur(8px);
      border-radius: var(--radius-pill);
      border: 1px solid #E8EEF4;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 20px 0 24px;
    }
    .nav-logo {
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
      letter-spacing: 0.2px;
      white-space: nowrap;
    }
    .nav-logo span {
      color: var(--primary);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-link {
      position: relative;
      font-size: 16px;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 6px 2px;
      transition: color var(--transition);
    }
    .nav-link:hover {
      color: var(--primary);
    }
    .nav-link.active {
      color: var(--primary);
    }
    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -2px;
      height: 2px;
      border-radius: 2px;
      background: var(--primary);
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .nav-search {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(43, 110, 178, 0.08);
      border: none;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 15px;
      cursor: pointer;
      transition: background var(--transition), color var(--transition);
    }
    .nav-search:hover {
      background: rgba(43, 110, 178, 0.15);
      color: var(--primary);
    }
    .nav-btn {
      padding: 8px 20px;
      font-size: 14px;
      border-radius: var(--radius-pill);
      background: var(--primary);
      color: var(--white);
      font-weight: 600;
      transition: background var(--transition), box-shadow var(--transition);
    }
    .nav-btn:hover {
      background: var(--primary-dark);
      box-shadow: var(--shadow-btn);
      color: var(--white);
    }

    /* ===== Breadcrumb ===== */
    .breadcrumb {
      padding: 32px 0 0;
    }
    .breadcrumb ul {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 14px;
      color: var(--text-secondary);
    }
    .breadcrumb li {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .breadcrumb li + li::before {
      content: "/";
      color: #C0CCD8;
      font-size: 13px;
    }
    .breadcrumb a {
      color: var(--text-secondary);
    }
    .breadcrumb a:hover {
      color: var(--primary);
    }
    .breadcrumb .current {
      color: var(--text);
      font-weight: 500;
    }

    /* ===== Category Header ===== */
    .category-header {
      padding: 48px 0 16px;
    }
    .category-header .container {
      max-width: 960px;
    }
    .category-header h1 {
      position: relative;
      font-size: 36px;
      line-height: 44px;
      font-weight: 600;
      color: #111827;
      padding-left: 18px;
      margin-bottom: 18px;
    }
    .category-header h1::before {
      content: "";
      position: absolute;
      left: 0;
      top: 6px;
      bottom: 6px;
      width: 4px;
      border-radius: 4px;
      background: var(--primary);
    }
    .category-desc {
      font-size: 16px;
      line-height: 28px;
      color: var(--text-secondary);
      max-width: 860px;
    }

    /* ===== Section Common ===== */
    .section {
      padding: 72px 0;
    }
    .section-head {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-head h2 {
      font-size: 26px;
      line-height: 34px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 12px;
    }
    .section-head p {
      font-size: 15px;
      color: var(--text-secondary);
      max-width: 640px;
      margin: 0 auto;
    }

    /* ===== Stats ===== */
    .stats-section {
      padding: 24px 0 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stat-card {
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: box-shadow var(--transition), transform var(--transition);
    }
    .stat-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .stat-number {
      font-size: 32px;
      font-weight: 700;
      color: var(--primary);
      display: block;
      line-height: 1.2;
    }
    .stat-number em {
      font-style: normal;
      font-size: 18px;
      margin-left: 2px;
    }
    .stat-label {
      font-size: 14px;
      color: var(--text-secondary);
      margin-top: 8px;
      display: block;
    }

    /* ===== Content List ===== */
    .list-section {
      padding: 72px 0 0;
    }
    .list-section .container {
      max-width: 960px;
    }
    .content-list {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .list-card {
      display: flex;
      align-items: flex-start;
      gap: 28px;
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: box-shadow var(--transition), transform var(--transition);
    }
    .list-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .list-thumb {
      width: 160px;
      height: 120px;
      flex-shrink: 0;
      border-radius: var(--radius-sm);
      overflow: hidden;
      background: var(--primary-light);
    }
    .list-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .list-body {
      flex: 1;
      min-width: 0;
    }
    .list-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 8px;
    }
    .badge {
      display: inline-block;
      padding: 2px 10px;
      border-radius: var(--radius-sm);
      background: rgba(242, 92, 58, 0.10);
      color: var(--accent);
      font-size: 12px;
      line-height: 18px;
      font-weight: 500;
    }
    .date-badge {
      display: inline-block;
      padding: 2px 10px;
      border-radius: var(--radius-sm);
      background: rgba(43, 110, 178, 0.08);
      color: var(--primary);
      font-size: 12px;
      line-height: 18px;
    }
    .list-body h3 {
      font-size: 17px;
      font-weight: 600;
      color: var(--text);
      line-height: 1.5;
      margin-bottom: 8px;
      transition: color var(--transition);
    }
    .list-body h3 a {
      color: inherit;
    }
    .list-body h3 a:hover {
      color: var(--primary);
    }
    .list-body p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 26px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 10px;
    }
    .read-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 500;
      color: var(--primary);
    }
    .read-link i {
      font-size: 12px;
      transition: transform var(--transition);
    }
    .read-link:hover {
      color: var(--accent);
    }
    .read-link:hover i {
      transform: translateX(3px);
    }

    /* Empty State */
    .empty-state {
      display: none;
    }

    /* ===== FAQ Section ===== */
    .faq-section {
      padding: 72px 0;
    }
    .faq-section .container {
      max-width: 860px;
    }
    .faq-wrap {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: var(--primary-light);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      transition: box-shadow var(--transition);
    }
    .faq-item.active {
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      min-height: 44px;
    }
    .faq-question i {
      font-size: 14px;
      color: var(--primary);
      transition: transform 0.25s ease;
      flex-shrink: 0;
    }
    .faq-item.active .faq-question i {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.25s ease, padding 0.25s ease;
    }
    .faq-item.active .faq-answer {
      max-height: 500px;
      padding-top: 12px;
    }
    .faq-answer p {
      font-size: 15px;
      line-height: 26px;
      color: var(--text-secondary);
    }

    /* ===== Steps ===== */
    .steps-section {
      padding: 0 0 72px;
    }
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .step-card {
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: box-shadow var(--transition), transform var(--transition);
    }
    .step-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: var(--primary);
      color: var(--white);
      font-size: 16px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }
    .step-card h3 {
      font-size: 17px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 14px;
      line-height: 24px;
      color: var(--text-secondary);
    }

    /* ===== CTA Section ===== */
    .cta-section {
      padding: 72px 0;
      background: #F0F7FE;
    }
    .cta-box {
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      max-width: 960px;
      margin: 0 auto;
      background-image: linear-gradient(rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.96)), url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
    }
    .cta-box h2 {
      font-size: 26px;
      font-weight: 600;
      color: var(--text);
      line-height: 1.4;
      margin-bottom: 12px;
    }
    .cta-box p {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 560px;
      margin: 0 auto 32px;
    }
    .cta-btns {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--white);
      border-top: 1px solid var(--border);
      padding: 56px 0 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.4fr;
      gap: 40px;
      padding-bottom: 40px;
    }
    .footer-brand .logo-text {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
      display: block;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 24px;
      color: var(--text-secondary);
      max-width: 320px;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 16px;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul a {
      font-size: 14px;
      color: var(--text-secondary);
      transition: color var(--transition);
    }
    .footer-col ul a:hover {
      color: var(--primary);
    }
    .footer-contact p {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-contact i {
      color: var(--primary);
      width: 16px;
    }
    .footer-bottom {
      border-top: 1px solid var(--border);
      padding: 20px 0;
      text-align: center;
    }
    .footer-bottom p {
      font-size: 14px;
      color: var(--text-secondary);
    }
    .footer-bottom a {
      color: var(--text-secondary);
    }
    .footer-bottom a:hover {
      color: var(--primary);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1199px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 767px) {
      .site-header {
        padding: 0 8px;
      }
      .main-nav {
        height: auto;
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 8px;
        border-radius: 20px;
      }
      .nav-links {
        order: 3;
        width: 100%;
        justify-content: center;
        gap: 20px;
        padding-top: 8px;
      }
      .nav-link {
        font-size: 14px;
      }
      .nav-btn {
        display: none;
      }
      .category-header h1 {
        font-size: 28px;
        line-height: 36px;
      }
      .section {
        padding: 48px 0;
      }
      .section-head h2 {
        font-size: 22px;
      }
      .list-section {
        padding: 48px 0 0;
      }
      .list-card {
        flex-direction: column;
        padding: 18px;
      }
      .list-thumb {
        width: 100%;
        height: 180px;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
      }
      .stat-card {
        padding: 20px 14px;
      }
      .stat-number {
        font-size: 28px;
      }
      .steps-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
      }
      .footer-brand {
        grid-column: 1 / -1;
      }
      .cta-box {
        padding: 36px 24px;
        border-radius: 16px;
      }
      .cta-btns {
        flex-direction: column;
      }
      .cta-btns .btn {
        width: 100%;
      }
      .breadcrumb {
        padding: 20px 0 0;
      }
    }
    @media (max-width: 520px) {
      .nav-links {
        gap: 14px;
      }
      .nav-link {
        font-size: 13px;
      }
      .nav-logo {
        font-size: 15px;
      }
      .category-header h1 {
        font-size: 24px;
        line-height: 34px;
      }
      .category-desc {
        font-size: 15px;
        line-height: 26px;
      }
    }