/* roulang page: index */
:root {
  --primary: #0d1b2a;
  --primary-light: #162b41;
  --primary-lighter: #1f3a55;
  --accent: #f0a500;
  --accent-dark: #d18f00;
  --accent-light: #fff6e0;
  --bg: #f4f6f9;
  --card-bg: #ffffff;
  --text: #1a2332;
  --text-weak: #6b7a8c;
  --text-mute: #98a6b5;
  --border: #e3e8ef;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(13, 27, 42, 0.08);
  --shadow-hover: 0 18px 40px rgba(13, 27, 42, 0.14);
  --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --sidebar-width: 250px;
  --content-max: 1180px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
img { display: block; max-width: 100%; height: auto; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 15px; }

.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-light) 100%);
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  padding: 28px 0 24px;
  overflow-y: auto;
  box-shadow: 4px 0 24px rgba(13, 27, 42, 0.12);
}
.brand {
  display: block;
  padding: 0 24px 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 18px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 21px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.5px;
  line-height: 1.3;
}
.brand-logo i {
  font-size: 24px;
  color: var(--accent);
  background: rgba(240, 165, 0, 0.15);
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-desc {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 6px;
  padding-left: 54px;
  letter-spacing: 1px;
}
.side-nav { flex: 1; padding: 0 14px; }
.side-nav-label {
  font-size: 11px;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.35);
  padding: 10px 12px 8px;
  text-transform: uppercase;
}
.side-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 4px;
  transition: var(--transition);
}
.side-nav a i {
  width: 22px;
  text-align: center;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.4);
  transition: var(--transition);
}
.side-nav a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  transform: translateX(3px);
}
.side-nav a:hover i { color: var(--accent); }
.side-nav a.active {
  background: linear-gradient(135deg, rgba(240, 165, 0, 0.25), rgba(240, 165, 0, 0.1));
  color: #fff;
  box-shadow: inset 3px 0 0 var(--accent);
  font-weight: 600;
}
.side-nav a.active i { color: var(--accent); }
.sidebar-footer {
  padding: 20px 24px 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.3);
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
}
.mobile-header {
  display: none;
}

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 32px;
}

.page-section { padding: 64px 0; }
.page-section-alt { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 36px;
  gap: 20px;
  flex-wrap: wrap;
}
.section-title {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.3;
  position: relative;
}
.section-title .accent-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 10px;
  vertical-align: middle;
}
.section-sub {
  color: var(--text-weak);
  font-size: 15px;
  margin-top: 8px;
  max-width: 560px;
}
.section-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--accent-light);
  transition: var(--transition);
  white-space: nowrap;
}
.section-link:hover {
  background: var(--accent);
  color: #fff;
  transform: translateX(3px);
}

.hero {
  position: relative;
  background-image: linear-gradient(120deg, rgba(13, 27, 42, 0.92) 0%, rgba(22, 43, 65, 0.82) 100%), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 110px 32px 120px;
  color: #fff;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(180deg, transparent, var(--bg));
  pointer-events: none;
}
.hero-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240, 165, 0, 0.2);
  border: 1px solid rgba(240, 165, 0, 0.4);
  color: #ffd070;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 999px;
  letter-spacing: 1px;
  margin-bottom: 28px;
}
.hero-badge i { font-size: 12px; }
.hero h1 {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero h1 span {
  color: var(--accent);
}
.hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #0d1b2a;
  box-shadow: 0 4px 20px rgba(240, 165, 0, 0.35);
}
.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(240, 165, 0, 0.45);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  background: rgba(240, 165, 0, 0.1);
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 52px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  flex-wrap: wrap;
}
.hero-stat {
  text-align: left;
}
.hero-stat .num {
  font-size: 30px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.hero-stat .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 4px;
  letter-spacing: 1px;
}

.ticker {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  overflow: hidden;
  position: relative;
}
.ticker-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  animation: tickerScroll 36s linear infinite;
  white-space: nowrap;
}
.ticker:hover .ticker-inner { animation-play-state: paused; }
@keyframes tickerScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
  padding: 6px 10px;
  border-radius: 8px;
  transition: var(--transition);
}
.ticker-item:hover { background: var(--accent-light); color: var(--accent-dark); }
.ticker-item i { color: var(--accent); font-size: 12px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 58px; height: 58px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: var(--accent-light);
  color: var(--accent-dark);
  margin-bottom: 22px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.category-card {
  display: flex;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  min-height: 260px;
}
.category-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.category-img {
  width: 45%;
  min-height: 260px;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.category-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, rgba(13, 27, 42, 0.3));
}
.category-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.category-card:hover .category-img img { transform: scale(1.05); }
.category-body {
  flex: 1;
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
}
.category-body .tag {
  align-self: flex-start;
  margin-bottom: 14px;
}
.category-body h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 10px;
  line-height: 1.4;
}
.category-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 16px;
}
.category-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.category-link:hover { gap: 10px; color: var(--primary); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.article-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: block;
  height: 100%;
}
.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  color: inherit;
}
.article-card-img {
  width: 100%;
  height: 180px;
  overflow: hidden;
  position: relative;
  background: var(--primary-light);
}
.article-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.article-card:hover .article-card-img img { transform: scale(1.06); }
.article-card-body { padding: 24px; }
.article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.article-date {
  font-size: 12px;
  color: var(--text-mute);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.article-card-body h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-card:hover .article-card-body h3 { color: var(--accent-dark); }
.article-card-body p {
  font-size: 13.5px;
  color: var(--text-weak);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.step-num {
  width: 56px; height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-lighter));
  box-shadow: 0 6px 16px rgba(13, 27, 42, 0.2);
}
.step-card:nth-child(even) .step-num {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}
.step-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
}
.step-card p {
  font-size: 13.5px;
  color: var(--text-weak);
  line-height: 1.6;
}

.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.recommend-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
}
.recommend-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.recommend-card-img {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
}
.recommend-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.recommend-card:hover .recommend-card-img img { transform: scale(1.06); }
.recommend-card-img::after {
  content: attr(data-label);
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(240, 165, 0, 0.9);
  color: #0d1b2a;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}
.recommend-card-body { padding: 22px 22px 26px; }
.recommend-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  transition: var(--transition);
}
.recommend-card:hover .recommend-card-body h3 { color: var(--accent-dark); }
.recommend-card-body p {
  font-size: 13.5px;
  color: var(--text-weak);
  line-height: 1.7;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--accent); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  gap: 16px;
}
.faq-q i {
  color: var(--accent);
  font-size: 14px;
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item.active .faq-q i { transform: rotate(180deg); }
.faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: all .3s ease;
  border-top: 1px solid transparent;
}
.faq-item.active .faq-a {
  padding: 16px 24px 20px;
  max-height: 400px;
  border-top-color: var(--border);
}
.faq-a p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.75;
}

.cta-section {
  background-image: linear-gradient(120deg, rgba(13, 27, 42, 0.93), rgba(22, 43, 65, 0.85)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 80px 32px;
  text-align: center;
  color: #fff;
  position: relative;
}
.cta-inner {
  max-width: 680px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 32px;
  line-height: 1.7;
}
.cta-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.6);
  padding: 52px 32px 24px;
}
.footer-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 24px;
}
.footer-brand {
  max-width: 340px;
}
.footer-brand .brand-logo {
  font-size: 20px;
  margin-bottom: 12px;
}
.footer-brand .brand-logo i {
  width: 38px; height: 38px;
  font-size: 18px;
}
.footer-brand p {
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
}
.footer-links {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.footer-col a {
  display: block;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.55);
  padding: 6px 0;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.35);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.4); }
.footer-bottom a:hover { color: var(--accent); }

.search-box {
  margin-top: 16px;
  position: relative;
}
.search-box input {
  width: 100%;
  padding: 10px 36px 10px 14px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 13px;
  outline: none;
  transition: var(--transition);
}
.search-box input::placeholder { color: rgba(255, 255, 255, 0.4); }
.search-box input:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.14);
}
.search-box i {
  position: absolute;
  right: 14px; top: 50%;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
  pointer-events: none;
}

@media (max-width: 1024px) {
  .sidebar {
    display: none;
  }
  .main-content {
    margin-left: 0;
  }
  .mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--primary);
    padding: 0 20px;
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 900;
    box-shadow: 0 4px 16px rgba(13, 27, 42, 0.2);
  }
  .mobile-header .brand-logo {
    padding: 0;
    border: none;
    margin: 0;
    font-size: 18px;
  }
  .mobile-header .brand-logo i {
    width: 34px; height: 34px;
    font-size: 16px;
  }
  .mobile-menu-btn {
    color: #fff;
    font-size: 20px;
    width: 42px; height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
  }
  .mobile-menu-btn:hover { background: rgba(255, 255, 255, 0.1); }
  .mobile-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0; right: 0;
    background: var(--primary);
    padding: 8px 16px 16px;
    box-shadow: 0 16px 32px rgba(13, 27, 42, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }
  .mobile-nav.open { display: block; }
  .mobile-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.75);
    padding: 13px 14px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
  }
  .mobile-nav a i { width: 20px; color: rgba(255, 255, 255, 0.4); }
  .mobile-nav a.active {
    background: rgba(240, 165, 0, 0.15);
    color: var(--accent);
    font-weight: 600;
  }
  .mobile-nav a.active i { color: var(--accent); }
  .hero { padding: 80px 24px 100px; }
  .hero h1 { font-size: 36px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .recommend-grid { grid-template-columns: repeat(2, 1fr); }
  .category-img { width: 40%; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .page-section { padding: 48px 0; }
  .section-title { font-size: 23px; }
  .hero h1 { font-size: 30px; }
  .hero-desc { font-size: 15px; }
  .feature-grid { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .category-card { flex-direction: column; }
  .category-img { width: 100%; min-height: 180px; height: 200px; }
  .category-body { padding: 24px; }
  .steps-grid { grid-template-columns: 1fr; gap: 16px; }
  .recommend-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 24px; }
  .btn { padding: 12px 22px; font-size: 14px; }
  .section-head { margin-bottom: 24px; }
  .footer { padding: 40px 20px 20px; }
  .footer-inner { flex-direction: column; gap: 28px; }
  .footer-links { gap: 32px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero { padding: 60px 16px 80px; }
  .hero h1 { font-size: 25px; }
  .hero-badge { font-size: 12px; padding: 5px 12px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .btn { width: 100%; }
  .page-section { padding: 40px 0; }
  .section-title { font-size: 21px; }
  .feature-card { padding: 26px 20px; }
  .article-card-img { height: 160px; }
  .footer-links { flex-direction: column; gap: 24px; }
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* roulang page: article */
:root {
    --primary: #0f1e35;
    --primary-light: #1b2d4b;
    --accent: #d4a855;
    --accent-dark: #b8913c;
    --bg: #f4f6f9;
    --card: #ffffff;
    --text: #1a2330;
    --text-light: #6b7683;
    --border: #e3e8ee;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 2px 12px rgba(15,30,53,0.06);
    --shadow-lg: 0 8px 30px rgba(15,30,53,0.12);
    --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}
*, *::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: 1.65; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font-family: inherit; }

.layout { display: flex; min-height: 100vh; }

/* 左侧导航 */
.side-nav {
    width: 260px; background: var(--primary); color: #fff; position: fixed;
    top: 0; bottom: 0; left: 0; z-index: 100; padding: 28px 18px;
    display: flex; flex-direction: column; overflow-y: auto;
}
.side-nav .brand-logo {
    display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700;
    color: #fff; padding: 6px 12px 18px; margin-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.side-nav .brand-logo i { color: var(--accent); font-size: 22px; }
.side-nav-label { font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(255,255,255,0.4); padding: 18px 12px 8px; font-weight: 600; }
.side-nav a {
    display: flex; align-items: center; gap: 12px; padding: 11px 14px; margin: 2px 0;
    border-radius: 10px; color: rgba(255,255,255,0.72); font-size: 14px; font-weight: 500;
    transition: all .25s ease; white-space: nowrap;
}
.side-nav a i { width: 18px; text-align: center; font-size: 15px; opacity: .85; }
.side-nav a:hover { background: rgba(255,255,255,0.08); color: #fff; transform: translateX(3px); }
.side-nav a.active { background: var(--accent); color: var(--primary); font-weight: 700; box-shadow: 0 4px 14px rgba(212,168,85,0.3); }
.side-nav a.active i { opacity: 1; transform: scale(1.08); }
.search-box { position: relative; margin-top: 30px; padding: 0 4px; }
.search-box input {
    width: 100%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px; padding: 11px 38px 11px 14px; color: #fff; font-size: 13px; outline: none; transition: all .25s ease;
}
.search-box input::placeholder { color: rgba(255,255,255,0.4); }
.search-box input:focus { background: rgba(255,255,255,0.14); border-color: var(--accent); box-shadow: 0 0 0 3px rgba(212,168,85,0.15); }
.search-box i { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); color: rgba(255,255,255,0.4); font-size: 14px; }

/* 主内容 */
.main-wrapper { flex: 1; margin-left: 260px; display: flex; flex-direction: column; min-height: 100vh; }
.main-content { flex: 1; }

.container { max-width: 1160px; margin: 0 auto; padding: 0 28px; }

/* 文章 Hero */
.article-hero { position: relative; padding: 64px 0 54px; background: var(--primary); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center 40%; opacity: .3; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,30,53,0.55) 0%, rgba(15,30,53,0.88) 100%); }
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 13px; color: rgba(255,255,255,0.55); margin-bottom: 22px; }
.breadcrumb a { color: rgba(255,255,255,0.8); transition: all .2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: rgba(255,255,255,0.35); }
.breadcrumb span { color: rgba(255,255,255,0.9); }
.article-hero h1 { font-size: 34px; line-height: 1.35; color: #fff; font-weight: 800; margin-bottom: 18px; max-width: 780px; letter-spacing: 0.01em; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; }
.hero-meta .badge { display: inline-flex; align-items: center; gap: 6px; background: var(--accent); color: var(--primary); font-size: 13px; font-weight: 700; padding: 5px 14px; border-radius: 20px; }
.hero-meta .meta-item { color: rgba(255,255,255,0.7); font-size: 13px; display: inline-flex; align-items: center; gap: 6px; }
.hero-meta .meta-item i { color: rgba(255,255,255,0.4); }

/* 文章卡片 */
.article-container { margin-top: -34px; position: relative; z-index: 3; padding-bottom: 50px; }
.article-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow-lg); overflow: hidden; }
.article-cover { height: 380px; overflow: hidden; position: relative; background: var(--primary); }
.article-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.article-cover:hover img { transform: scale(1.02); }
.article-body { padding: 44px 48px 52px; }

/* 文章正文排版 */
.article-content { font-size: 16px; line-height: 1.9; color: #2a3441; }
.article-content p { margin-bottom: 20px; }
.article-content h2 { font-size: 26px; font-weight: 700; margin: 42px 0 18px; line-height: 1.4; padding-left: 14px; border-left: 4px solid var(--accent); color: var(--primary); }
.article-content h3 { font-size: 21px; font-weight: 600; margin: 34px 0 14px; color: var(--primary); }
.article-content h4 { font-size: 18px; font-weight: 600; margin: 26px 0 12px; color: var(--primary); }
.article-content ul, .article-content ol { margin: 16px 0 24px; padding-left: 24px; }
.article-content li { margin-bottom: 8px; position: relative; }
.article-content ul li::marker { color: var(--accent); }
.article-content blockquote { border-left: 4px solid var(--accent); background: #faf7f0; padding: 18px 22px; margin: 28px 0; border-radius: 0 12px 12px 0; color: #4a5260; font-size: 15px; }
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content img { border-radius: var(--radius); margin: 24px 0; box-shadow: var(--shadow); }
.article-content a { color: #bf8d35; font-weight: 600; border-bottom: 1px solid rgba(191,141,53,0.3); transition: all .2s; }
.article-content a:hover { color: var(--accent-dark); border-bottom-color: var(--accent-dark); }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; border-radius: var(--radius-sm); overflow: hidden; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 12px 14px; text-align: left; }
.article-content th { background: var(--primary); color: #fff; font-weight: 600; }
.article-content tr:nth-child(even) { background: #f9fafb; }
.article-content code { background: #f1f3f6; border-radius: 5px; padding: 2px 7px; font-size: 14px; color: #c8472a; }
.article-content pre { background: var(--primary); color: #e6ebf2; padding: 22px; border-radius: var(--radius); overflow-x: auto; margin: 24px 0; font-size: 14px; line-height: 1.7; }

/* 标签 */
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; padding-top: 26px; border-top: 1px solid var(--border); }
.article-tags .tag { display: inline-flex; align-items: center; gap: 5px; background: #f4f6f9; border: 1px solid var(--border); color: var(--text-light); font-size: 13px; font-weight: 500; padding: 6px 15px; border-radius: 20px; transition: all .2s; }
.article-tags .tag:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.article-tags .tag i { font-size: 11px; }

/* CTA */
.cta-box { margin: 8px 0 48px; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); border-radius: var(--radius); padding: 40px 44px; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; box-shadow: var(--shadow-lg); position: relative; overflow: hidden; }
.cta-box::before { content: ''; position: absolute; right: -60px; top: -60px; width: 200px; height: 200px; border-radius: 50%; background: rgba(212,168,85,0.12); }
.cta-box h2 { color: #fff; font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.cta-box p { color: rgba(255,255,255,0.65); font-size: 15px; line-height: 1.7; max-width: 560px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 1; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 26px; border-radius: 12px; font-size: 14px; font-weight: 600; transition: all .25s ease; cursor: pointer; border: 1px solid transparent; }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 4px 16px rgba(0,0,0,0.15); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 6px 22px rgba(0,0,0,0.2); }
.btn-outline-light { border: 1.5px solid rgba(255,255,255,0.5); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: var(--primary); }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(212,168,85,0.35); }

/* 相关推荐 */
.recommend-section { padding-bottom: 60px; }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
.section-title { font-size: 24px; font-weight: 800; color: var(--text); position: relative; padding-left: 16px; }
.section-title::before { content: ''; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px; border-radius: 4px; background: var(--accent); }
.section-more { font-size: 14px; color: var(--text-light); display: inline-flex; align-items: center; gap: 6px; transition: all .2s; }
.section-more:hover { color: var(--accent); gap: 10px; }
.recommend-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.recommend-card { background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: all .3s ease; border: 1px solid transparent; }
.recommend-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(212,168,85,0.3); }
.recommend-card .card-img { height: 160px; overflow: hidden; position: relative; }
.recommend-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.recommend-card:hover .card-img img { transform: scale(1.06); }
.recommend-card .card-body { padding: 18px 20px 22px; }
.recommend-card .tag { display: inline-block; background: rgba(212,168,85,0.12); color: #a07e2d; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 12px; margin-bottom: 10px; }
.recommend-card h3 { font-size: 16px; line-height: 1.5; font-weight: 600; margin-bottom: 8px; color: var(--text); transition: all .2s; }
.recommend-card:hover h3 { color: var(--accent-dark); }
.recommend-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* 未找到 */
.not-found { padding: 90px 0; text-align: center; }
.not-found .icon { font-size: 60px; color: var(--accent); margin-bottom: 20px; }
.not-found h1 { font-size: 32px; color: var(--text); margin-bottom: 14px; }
.not-found p { color: var(--text-light); margin-bottom: 30px; }
.not-found .btn { padding: 14px 34px; }

/* 页脚 */
.footer { background: var(--primary); color: rgba(255,255,255,0.72); padding: 52px 0 0; margin-top: 20px; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 28px 36px; display: grid; grid-template-columns: 1.4fr 2fr; gap: 48px; }
.footer-brand p { font-size: 14px; line-height: 1.8; margin-top: 14px; max-width: 360px; color: rgba(255,255,255,0.5); }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: #fff; }
.brand-logo i { color: var(--accent); font-size: 24px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 600; margin-bottom: 16px; letter-spacing: 0.02em; }
.footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,0.55); margin-bottom: 10px; transition: all .2s; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; max-width: 1200px; margin: 0 auto; padding-left: 28px; padding-right: 28px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: rgba(255,255,255,0.35); }

/* 响应式 */
@media (max-width: 1024px) {
    .side-nav { position: static; width: 100%; height: auto; padding: 10px 16px; flex-direction: row; align-items: center; gap: 6px; overflow-x: auto; background: var(--primary); flex-wrap: nowrap; }
    .side-nav .brand-logo { border-bottom: 0; padding: 6px 12px; margin-bottom: 0; font-size: 15px; flex-shrink: 0; }
    .side-nav .brand-logo i { font-size: 17px; }
    .side-nav-label, .search-box { display: none; }
    .side-nav a { padding: 8px 13px; font-size: 13px; margin: 0; flex-shrink: 0; background: rgba(255,255,255,0.06); border-radius: 8px; }
    .side-nav a:hover { transform: none; }
    .side-nav a.active { background: var(--accent); }
    .main-wrapper { margin-left: 0; }
    .recommend-grid { grid-template-columns: repeat(2, 1fr); }
    .article-body { padding: 32px 28px 40px; }
    .article-cover { height: 300px; }
    .cta-box { padding: 32px 28px; }
    .footer-inner { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 768px) {
    .container { padding: 0 18px; }
    .article-hero { padding: 40px 0 150px; }
    .article-hero h1 { font-size: 25px; }
    .hero-meta { gap: 10px 16px; }
    .article-container { margin-top: -80px; }
    .article-cover { height: 220px; }
    .article-body { padding: 26px 20px 34px; }
    .article-content { font-size: 15px; }
    .article-content h2 { font-size: 22px; }
    .article-content h3 { font-size: 18px; }
    .recommend-grid { grid-template-columns: 1fr; }
    .cta-box { flex-direction: column; align-items: flex-start; padding: 28px 22px; }
    .cta-box h2 { font-size: 20px; }
    .footer-links { grid-template-columns: 1fr 1fr; gap: 20px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .not-found { padding: 60px 18px; }
    .not-found h1 { font-size: 26px; }
}
@media (max-width: 520px) {
    .side-nav a { padding: 7px 10px; font-size: 12px; }
    .side-nav a i { display: none; }
    .side-nav .brand-logo { font-size: 14px; padding: 6px 8px; }
    .article-hero { padding: 32px 0 140px; }
    .article-hero h1 { font-size: 21px; }
    .article-container { margin-top: -70px; }
    .article-cover { height: 180px; }
    .cta-actions { width: 100%; }
    .cta-actions .btn { flex: 1; justify-content: center; }
    .footer-inner { padding: 0 18px 28px; }
    .footer-bottom { padding-left: 18px; padding-right: 18px; }
}

/* roulang page: category1 */
:root {
  --primary:#0e7c66;
  --primary-dark:#0a5d4c;
  --primary-deep:#0c3a31;
  --primary-light:#e7f3f0;
  --primary-soft:#f0f7f5;
  --accent:#e8a33d;
  --accent-dark:#d08a22;
  --accent-soft:#fdf3e0;
  --ink:#19322d;
  --muted:#5f736f;
  --bg:#f4f7f6;
  --card:#ffffff;
  --border:#e3eae8;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 8px 30px rgba(14,124,102,.08);
  --shadow-lg:0 16px 44px rgba(14,124,102,.15);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --sidebar-w:264px;
  --section-gap:74px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family:var(--font);
  font-size:15px;
  color:var(--ink);
  background:var(--bg);
  line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
img { max-width:100%; height:auto; display:block; }
a { color:inherit; text-decoration:none; transition:color .2s; }
button { font-family:inherit; border:none; background:none; cursor:pointer; }
input, textarea { font-family:inherit; }
ul, ol { list-style:none; }

.container { max-width:1200px; margin:0 auto; padding:0 32px; }
.narrow { max-width:960px; }

.site-shell { min-height:100vh; }
.main-right { margin-left:var(--sidebar-w); min-height:100vh; display:flex; flex-direction:column; }
.main-content { flex:1; }

.side-header {
  position:fixed;
  left:0; top:0; bottom:0;
  width:var(--sidebar-w);
  background:var(--primary-deep);
  color:#dcebe7;
  padding:26px 20px 22px;
  display:flex;
  flex-direction:column;
  z-index:1000;
  border-right:1px solid rgba(255,255,255,.06);
}
.brand { display:flex; align-items:center; gap:10px; padding:0 4px; margin-bottom:26px; }
.brand-logo {
  display:flex; align-items:center; gap:9px;
  font-size:18px; font-weight:800; color:#fff; letter-spacing:.4px;
}
.brand-logo i { color:var(--accent); font-size:21px; }

.side-nav { display:flex; flex-direction:column; gap:5px; }
.side-nav-label {
  font-size:11px; font-weight:700; text-transform:uppercase;
  letter-spacing:2px; color:#6f9b8f; margin:12px 0 6px; padding:0 10px;
}
.side-nav a {
  display:flex; align-items:center; gap:11px;
  padding:11px 13px; border-radius:10px;
  color:#b8d4cd; font-size:14.5px; font-weight:600; transition:all .22s ease;
}
.side-nav a i { width:18px; text-align:center; font-size:14px; color:#6f9b8f; transition:color .22s; }
.side-nav a:hover { background:rgba(255,255,255,.08); color:#fff; transform:translateX(3px); }
.side-nav a.active {
  background:var(--primary); color:#fff;
  box-shadow:0 8px 20px rgba(14,124,102,.35);
}
.side-nav a.active i { color:#fff; }

.search-box { margin-top:auto; position:relative; }
.search-box input {
  width:100%;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  border-radius:10px;
  color:#fff;
  padding:10px 38px 10px 14px;
  font-size:13px;
  outline:none;
  transition:border-color .22s, background .22s;
}
.search-box input::placeholder { color:#6f9b8f; }
.search-box input:focus { border-color:var(--accent); background:rgba(255,255,255,.14); }
.search-box i { position:absolute; right:14px; top:50%; transform:translateY(-50%); color:#6f9b8f; font-size:13px; pointer-events:none; }

.menu-toggle { display:none; }

.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  padding:13px 26px; border-radius:12px;
  font-size:14.5px; font-weight:700; letter-spacing:.3px;
  transition:transform .22s, box-shadow .22s, background .22s, color .22s;
}
.btn i { font-size:15px; }
.btn-accent { background:var(--accent); color:#1b2e18; box-shadow:0 10px 24px rgba(232,163,61,.3); }
.btn-accent:hover { background:#f0b04e; transform:translateY(-2px); box-shadow:0 14px 30px rgba(232,163,61,.4); }
.btn-accent:active { transform:translateY(0); }
.btn-primary { background:var(--primary); color:#fff; box-shadow:0 10px 24px rgba(14,124,102,.28); }
.btn-primary:hover { transform:translateY(-2px); background:var(--primary-dark); box-shadow:0 14px 30px rgba(14,124,102,.36); }
.btn-ghost { background:rgba(255,255,255,.12); color:#fff; border:1px solid rgba(255,255,255,.28); }
.btn-ghost:hover { background:rgba(255,255,255,.22); border-color:rgba(255,255,255,.5); }
.btn-outline-light { border:1.5px solid rgba(255,255,255,.55); color:#fff; background:transparent; }
.btn-outline-light:hover { background:rgba(255,255,255,.15); }
a.btn:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline:3px solid rgba(14,124,102,.35); outline-offset:2px; }

.tag {
  display:inline-flex; align-items:center; gap:6px;
  padding:5px 13px; border-radius:999px;
  font-size:12.5px; font-weight:700; letter-spacing:.4px;
}
.tag-light { background:rgba(255,255,255,.15); color:#fff; backdrop-filter:blur(4px); }
.tag-ghost { border:1px solid rgba(255,255,255,.35); color:#e7f3f0; background:rgba(255,255,255,.06); }
.tag-solid { background:var(--primary-light); color:var(--primary-dark); }
.tag-accent { background:var(--accent-soft); color:var(--accent-dark); }

.banner {
  position:relative;
  padding:86px 0 72px;
  color:#fff;
  background:
    linear-gradient(120deg, rgba(9,45,38,.92) 0%, rgba(12,62,52,.78) 58%, rgba(14,124,102,.68) 100%),
    url('/assets/images/backpic/back-1.png') center 30%/cover no-repeat;
  border-bottom:3px solid var(--accent);
  overflow:hidden;
}
.banner::after {
  content:"";
  position:absolute; right:-120px; top:-80px; width:340px; height:340px;
  background:radial-gradient(circle, rgba(232,163,61,.25), transparent 65%);
  pointer-events:none;
}
.banner-inner { position:relative; z-index:2; }
.banner-tags { display:flex; gap:10px; flex-wrap:wrap; margin-bottom:14px; }
.breadcrumb {
  display:flex; align-items:center; gap:9px;
  font-size:13px; color:#9bc4ba; margin-bottom:14px;
}
.breadcrumb a:hover { color:#fff; }
.breadcrumb i { font-size:10px; color:#5f8d82; }
.breadcrumb span { color:#e7f3f0; }
.banner h1 { font-size:40px; line-height:1.24; font-weight:800; letter-spacing:.5px; margin-bottom:16px; max-width:760px; }
.banner h1 span { color:var(--accent); }
.banner-lead { font-size:16px; line-height:1.8; color:#cfe6df; max-width:720px; margin-bottom:26px; }
.banner-actions { display:flex; flex-wrap:wrap; gap:14px; margin-bottom:40px; }
.banner-stats {
  display:flex; flex-wrap:wrap; gap:0 44px;
  padding-top:28px; border-top:1px solid rgba(255,255,255,.14);
}
.stat { display:flex; flex-direction:column; }
.stat-num { font-size:25px; font-weight:800; color:#fff; letter-spacing:.5px; }
.stat-label { font-size:12.5px; color:#8fb7ad; margin-top:2px; letter-spacing:.5px; }

.ticker { background:#fff; border-bottom:1px solid var(--border); position:relative; z-index:5; }
.ticker-inner { display:flex; align-items:center; gap:14px; padding:12px 32px; }
.ticker-label {
  background:var(--accent); color:#fff; border-radius:6px;
  font-size:11.5px; font-weight:800; letter-spacing:1.5px;
  padding:4px 10px; flex-shrink:0; display:inline-flex; align-items:center; gap:5px;
}
.ticker-text { font-size:14px; color:var(--ink); font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }

.section { padding:var(--section-gap) 0; }
.section-alt { background:#fff; border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.section-head { max-width:780px; margin-bottom:38px; }
.section-head.center { margin-left:auto; margin-right:auto; text-align:center; }
.eyebrow {
  display:inline-flex; align-items:center; gap:7px;
  font-size:12.5px; font-weight:800; letter-spacing:2px;
  text-transform:uppercase; color:var(--primary); margin-bottom:10px;
}
.eyebrow::before { content:""; width:22px; height:3px; border-radius:3px; background:var(--accent); }
.section-head.center .eyebrow::after { content:""; width:22px; height:3px; border-radius:3px; background:var(--accent); }
.section-head h2 { font-size:30px; line-height:1.32; font-weight:800; letter-spacing:.3px; }
.section-sub { font-size:15px; color:var(--muted); margin-top:10px; line-height:1.8; max-width:680px; }
.section-head.center .section-sub { margin-left:auto; margin-right:auto; }

.overview-grid { display:grid; grid-template-columns:1.05fr 1fr; gap:46px; align-items:center; }
.overview-media { position:relative; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow-lg); }
.overview-media img { width:100%; height:430px; object-fit:cover; }
.media-badge {
  position:absolute; left:18px; bottom:18px;
  display:inline-flex; align-items:center; gap:8px;
  background:rgba(12,58,49,.88); color:#fff;
  border:1px solid rgba(255,255,255,.18);
  padding:9px 16px; border-radius:999px;
  font-size:13px; font-weight:600; letter-spacing:.4px;
  backdrop-filter:blur(6px);
}
.media-badge i { color:var(--accent); font-size:14px; }
.overview-list { display:flex; flex-direction:column; gap:22px; }
.feature-item { display:flex; gap:16px; align-items:flex-start; }
.feature-item .feature-icon {
  width:46px; height:46px; flex-shrink:0; border-radius:13px;
  background:var(--primary-light); color:var(--primary);
  display:flex; align-items:center; justify-content:center; font-size:18px;
}
.feature-item h3 { font-size:16.5px; font-weight:800; margin-bottom:4px; }
.feature-item p { font-size:14px; color:var(--muted); line-height:1.75; }

.flow-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.flow-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--radius); padding:30px 26px; position:relative;
  transition:transform .24s, box-shadow .24s; overflow:hidden;
}
.flow-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-lg); border-color:#ccdbd7; }
.flow-num {
  position:absolute; top:20px; right:22px;
  font-size:42px; font-weight:800; color:var(--primary-light); line-height:1; letter-spacing:-2px;
}
.flow-icon {
  width:52px; height:52px; border-radius:15px;
  background:var(--primary); color:#fff; font-size:20px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; box-shadow:0 10px 22px rgba(14,124,102,.26);
}
.flow-card h3 { font-size:18px; font-weight:800; margin-bottom:8px; }
.flow-card p { font-size:14px; color:var(--muted); line-height:1.75; }
.flow-note {
  margin-top:24px; display:flex; gap:10px; align-items:center;
  background:var(--accent-soft); border:1px solid #f3e0bf;
  border-radius:12px; padding:14px 18px; color:#8a5f18; font-size:14px; font-weight:600;
}
.flow-note i { color:var(--accent-dark); font-size:15px; }

.matrix-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.feature-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--radius); padding:26px 24px;
  transition:transform .23s, box-shadow .23s, border-color .23s;
}
.feature-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); border-color:#cfe0dc; }
.feature-card .fc-icon {
  width:52px; height:52px; border-radius:14px;
  background:var(--primary-light); color:var(--primary);
  display:flex; align-items:center; justify-content:center;
  font-size:21px; margin-bottom:17px;
}
.feature-card h3 { font-size:16.5px; font-weight:800; margin-bottom:6px; }
.feature-card p { font-size:13.5px; color:var(--muted); line-height:1.72; margin-bottom:12px; }
.feature-card .card-tags { display:flex; gap:7px; flex-wrap:wrap; }

.dark-band {
  background:
    linear-gradient(115deg, rgba(9,45,38,.94), rgba(10,58,47,.82)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff; padding:82px 0; position:relative; overflow:hidden;
}
.dark-band .eyebrow { color:var(--accent); }
.dark-band .eyebrow::before { background:var(--accent); }
.highlight-cols { display:grid; grid-template-columns:1.1fr .9fr; gap:50px; align-items:center; }
.highlight-main h2 { font-size:30px; font-weight:800; margin-bottom:14px; letter-spacing:.3px; }
.highlight-main > p { font-size:15px; color:#c6ded7; margin-bottom:22px; max-width:600px; }
.check-list { display:flex; flex-direction:column; gap:13px; }
.check-list li { display:flex; gap:12px; align-items:flex-start; font-size:14.5px; font-weight:600; color:#e7f3f0; }
.check-list li i { color:var(--accent); font-size:16px; margin-top:2px; flex-shrink:0; }
.stats-panel {
  background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.16);
  border-radius:20px; padding:30px; backdrop-filter:blur(8px);
}
.stats-panel .sp-head { font-size:14px; font-weight:700; color:#9bc4ba; letter-spacing:1px; margin-bottom:20px; display:flex; align-items:center; gap:8px; }
.stats-panel .sp-head i { color:var(--accent); }
.stat-row { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.stat-cell { background:rgba(255,255,255,.07); border-radius:14px; padding:18px 16px; text-align:center; }
.stat-cell .num { font-size:28px; font-weight:800; color:#fff; line-height:1.2; }
.stat-cell .label { font-size:12.5px; color:#9bc4ba; margin-top:3px; }
.stat-cell.full { grid-column:1 / -1; }

.faq-list { display:flex; flex-direction:column; gap:14px; }
.faq-item {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--radius); padding:22px 26px;
  transition:box-shadow .22s, border-color .22s;
}
.faq-item[open] { border-color:var(--primary); box-shadow:var(--shadow); }
.faq-item summary {
  list-style:none; cursor:pointer; display:flex; align-items:center; justify-content:space-between; gap:16px;
  font-size:15.5px; font-weight:800; color:var(--ink);
}
.faq-item summary::-webkit-details-marker { display:none; }
.faq-item summary .faq-icon {
  width:30px; height:30px; flex-shrink:0; border-radius:50%;
  background:var(--primary-light); color:var(--primary); font-size:13px;
  display:flex; align-items:center; justify-content:center; transition:transform .25s;
}
.faq-item[open] summary .faq-icon { transform:rotate(45deg); background:var(--primary); color:#fff; }
.faq-item p { margin-top:14px; font-size:14px; color:var(--muted); line-height:1.8; padding-right:20px; }

.cta-band { position:relative; padding:80px 0; background:#fff; }
.cta-box {
  background:
    linear-gradient(115deg, rgba(9,45,38,.92), rgba(12,62,52,.84)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius:24px; padding:52px 56px; color:#fff;
  display:flex; align-items:center; justify-content:space-between; gap:34px; flex-wrap:wrap;
  box-shadow:0 24px 60px rgba(9,45,38,.32); overflow:hidden; position:relative;
}
.cta-box::after {
  content:""; position:absolute; right:-60px; top:-60px; width:220px; height:220px;
  background:radial-gradient(circle, rgba(232,163,61,.3), transparent 70%);
}
.cta-text { position:relative; z-index:2; }
.cta-text h2 { font-size:29px; font-weight:800; margin-bottom:10px; }
.cta-text p { font-size:14.5px; color:#c6ded7; max-width:520px; line-height:1.8; }
.cta-actions { display:flex; gap:13px; flex-wrap:wrap; position:relative; z-index:2; }

.footer {
  background:var(--primary-deep); color:#b8d4cd;
  padding:54px 32px 24px;
}
.footer-inner {
  max-width:1200px; margin:0 auto;
  display:grid; grid-template-columns:1.3fr 1.4fr; gap:46px; align-items:start;
}
.footer-brand .brand-logo { margin-bottom:12px; }
.footer-brand p { font-size:13.5px; line-height:1.85; color:#7da598; max-width:340px; }
.footer-links { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.footer-col h4 { font-size:14px; font-weight:800; color:#fff; letter-spacing:.5px; margin-bottom:12px; }
.footer-col a {
  display:block; font-size:13.5px; color:#83aa9f; padding:5px 0;
  transition:color .2s, transform .2s;
}
.footer-col a:hover { color:var(--accent); transform:translateX(3px); }
.footer-bottom {
  max-width:1200px; margin:38px auto 0;
  padding-top:20px; border-top:1px solid rgba(255,255,255,.09);
  display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap;
  font-size:12.5px; color:#6b9187;
}

@media (max-width:1024px) {
  :root { --sidebar-w:0px; }
  .side-header {
    top:0; left:0; right:0; bottom:auto;
    width:100%; height:64px;
    flex-direction:row; align-items:center;
    padding:0 20px; z-index:1000;
  }
  .brand { margin:0; }
  .brand-logo { font-size:17px; }
  .menu-toggle {
    display:inline-flex; align-items:center; justify-content:center;
    margin-left:auto; width:40px; height:40px; border-radius:10px;
    background:rgba(255,255,255,.1); color:#fff; font-size:16px;
    transition:background .22s;
  }
  .menu-toggle:hover { background:rgba(255,255,255,.2); }
  .side-nav {
    position:absolute; top:64px; left:0; right:0;
    background:var(--primary-deep);
    padding:12px 20px 20px;
    display:none; flex-direction:column;
    border-top:1px solid rgba(255,255,255,.08);
    box-shadow:0 20px 40px rgba(0,0,0,.3);
  }
  .side-nav.open { display:flex; }
  .search-box { margin:16px 0 0; }
  .main-right { margin-left:0; margin-top:64px; }
  .overview-grid, .highlight-cols { grid-template-columns:1fr; gap:36px; }
  .cta-box { padding:44px 34px; }
}
@media (max-width:768px) {
  :root { --section-gap:58px; }
  .container { padding:0 22px; }
  .banner { padding:60px 0 48px; }
  .banner h1 { font-size:29px; }
  .banner-lead { font-size:14.5px; }
  .banner-stats { gap:22px 32px; }
  .flow-grid, .matrix-grid { grid-template-columns:1fr 1fr; }
  .section-head h2 { font-size:25px; }
  .footer-inner { grid-template-columns:1fr; gap:30px; }
  .footer-links { grid-template-columns:1fr 1fr; }
  .cta-actions .btn { width:100%; }
}
@media (max-width:520px) {
  .flow-grid, .matrix-grid { grid-template-columns:1fr; }
  .footer-links { grid-template-columns:1fr; }
  .ticker-inner { padding:10px 22px; }
  .stat-num { font-size:21px; }
  .banner-actions .btn { width:100%; }
  .cta-box { padding:36px 24px; text-align:center; }
  .cta-actions { flex-direction:column; width:100%; }
  .footer { padding-left:22px; padding-right:22px; }
  .overview-media img { height:270px; }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root {
  --primary: #0c2a4d;
  --primary-2: #123c66;
  --primary-3: #1b5282;
  --accent: #e67e22;
  --accent-2: #f2a03d;
  --accent-gradient: linear-gradient(135deg, #e67e22 0%, #f2a03d 100%);
  --bg: #f3f5f8;
  --bg-white: #ffffff;
  --bg-soft: #eef2f6;
  --text: #1b2430;
  --text-soft: #5e6e82;
  --text-faint: #93a1b2;
  --border: #dce2e9;
  --border-light: #e8ecf1;
  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(10, 20, 35, .05);
  --shadow: 0 4px 18px rgba(10, 20, 35, .06);
  --shadow-lg: 0 14px 40px rgba(10, 20, 35, .10);
  --nav-w: 268px;
  --spacer: 84px;
  --transition: all .25s ease;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button, input { font-family: inherit; font-size: 100%; border: none; outline: none; }
ul, ol { list-style: none; }

::selection { background: rgba(230, 126, 34, .25); }

/* ========== 布局骨架 ========== */
.side-nav {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--nav-w);
  background: var(--primary);
  color: #cbd5e1;
  padding: 26px 20px 32px;
  display: flex;
  flex-direction: column;
  z-index: 1002;
  overflow-y: auto;
  box-shadow: 2px 0 24px rgba(4, 12, 28, .28);
}

.main-content { margin-left: var(--nav-w); min-height: 100vh; display: flex; flex-direction: column; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
}

/* ========== 侧边导航品牌 ========== */
.side-nav-brand {
  padding: 6px 0 22px;
  border-bottom: 1px solid rgba(255, 255, 255, .10);
  margin-bottom: 22px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  color: #fff;
  letter-spacing: .3px;
  line-height: 1.3;
}

.brand-logo i {
  width: 36px; height: 36px;
  background: var(--accent-gradient);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
  box-shadow: 0 4px 12px rgba(230, 126, 34, .35);
}

.side-nav-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, .45);
  margin-bottom: 12px;
  padding-left: 12px;
}

.side-nav a:not(.brand-logo) {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, .66);
  font-size: 14.5px;
  font-weight: 500;
  margin-bottom: 4px;
  transition: var(--transition);
}

.side-nav a:not(.brand-logo) i {
  width: 20px;
  text-align: center;
  font-size: 15px;
  color: rgba(255, 255, 255, .45);
  transition: var(--transition);
}

.side-nav a:not(.brand-logo):hover {
  background: rgba(255, 255, 255, .08);
  color: #fff;
  transform: translateX(3px);
}

.side-nav a:not(.brand-logo):hover i { color: var(--accent-2); }

.side-nav a.active {
  background: var(--accent-gradient);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(230, 126, 34, .30);
}

.side-nav a.active i { color: #fff; }

.side-nav a:focus-visible,
.mobile-header a:focus-visible,
.footer a:focus-visible,
.btn:focus-visible,
.faq-item button:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* ========== 搜索框 ========== */
.search-box {
  position: relative;
  margin-top: 22px;
}

.search-box input {
  width: 100%;
  padding: 12px 40px 12px 15px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .08);
  color: #fff;
  font-size: 13.5px;
  transition: var(--transition);
}

.search-box input::placeholder { color: rgba(255, 255, 255, .35); }
.search-box input:focus { background: rgba(255, 255, 255, .12); border-color: rgba(230, 126, 34, .6); }

.search-box i {
  position: absolute;
  right: 14px; top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: rgba(255, 255, 255, .35);
  pointer-events: none;
}

/* ========== 移动端顶部 ========== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 1001;
  height: 64px;
  padding: 0 18px;
  background: var(--primary);
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 12px rgba(4, 12, 28, .2);
}

.mobile-header .brand-logo { font-size: 16px; }
.mobile-header .brand-logo i { width: 30px; height: 30px; font-size: 13px; }

.menu-toggle {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  font-size: 17px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.menu-toggle:hover { background: rgba(255, 255, 255, .16); }

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 10, 22, .55);
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.nav-overlay.active { opacity: 1; visibility: visible; }

/* ========== 页面 Hero ========== */
.page-hero {
  position: relative;
  background: linear-gradient(120deg, rgba(6, 20, 42, .92), rgba(12, 42, 77, .78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 92px 0 84px;
  color: #fff;
  border-bottom: 4px solid var(--accent);
}

.page-hero .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .55);
  margin-bottom: 22px;
}

.page-hero .crumbs a:hover { color: var(--accent-2); }
.page-hero .crumbs i { font-size: 11px; color: rgba(255, 255, 255, .35); }

.page-hero h1 {
  font-size: 42px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 1px;
  max-width: 720px;
}

.page-hero h1 span { color: var(--accent-2); }

.hero-desc {
  margin-top: 18px;
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .78);
  max-width: 640px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .10);
  border: 1px solid rgba(255, 255, 255, .14);
  padding: 7px 15px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, .85);
}

/* ========== 通用板块 ========== */
.section {
  padding: var(--spacer) 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 38px;
}

.section-head .bar {
  display: inline-block;
  width: 5px;
  height: 26px;
  background: var(--accent-gradient);
  border-radius: 4px;
  margin-right: 10px;
  vertical-align: -4px;
}

.section-head h2 {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
}

.section-head p {
  color: var(--text-soft);
  font-size: 14px;
  max-width: 420px;
  text-align: right;
}

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

/* ========== 攻略分类卡片 ========== */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.cat-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.cat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(230, 126, 34, .3);
}

.cat-card .cover {
  position: relative;
  height: 170px;
  overflow: hidden;
}

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

.cat-card:hover .cover img { transform: scale(1.06); }

.cat-card .cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 15, 30, .35), transparent 60%);
}

.cat-card .tag {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 2;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  box-shadow: 0 4px 10px rgba(230, 126, 34, .35);
}

.cat-card .cat-body {
  padding: 20px 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.cat-card .cat-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 9px;
  line-height: 1.4;
}

.cat-card .cat-body p {
  font-size: 13.5px;
  color: var(--text-soft);
  line-height: 1.7;
  flex: 1;
}

.cat-card .cat-link {
  margin-top: 16px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cat-card .cat-link i { font-size: 12px; transition: var(--transition); }
.cat-card:hover .cat-link i { transform: translateX(4px); }

/* ========== 排行 & 图文区 ========== */
.rank-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 36px;
  align-items: stretch;
}

.rank-list {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 12px 18px;
  box-shadow: var(--shadow-sm);
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 8px;
  border-bottom: 1px dashed var(--border-light);
  transition: var(--transition);
}

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

.rank-item:hover { background: rgba(243, 245, 248, .7); padding-left: 16px; }

.rank-num {
  width: 36px; height: 36px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--primary);
  font-size: 16px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.rank-item:nth-child(1) .rank-num { background: var(--accent-gradient); color: #fff; box-shadow: 0 4px 12px rgba(230,126,34,.3); }
.rank-item:nth-child(2) .rank-num { background: #dde4ec; color: var(--primary); }
.rank-item:nth-child(3) .rank-num { background: #e8ecef; color: var(--primary); }

.rank-item .rank-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.45;
  flex: 1;
  color: var(--text);
}

.rank-item:hover .rank-title { color: var(--primary-3); }

.rank-item .rank-meta {
  font-size: 12px;
  color: var(--text-faint);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 5px;
}

.rank-item .rank-meta i { font-size: 12px; }

.rank-feature {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  min-height: 300px;
  box-shadow: var(--shadow-lg);
}

.rank-feature img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.rank-feature::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(5,15,32,.78), rgba(5,15,32,.08)); }

.rank-feature-content {
  position: absolute;
  left: 24px; right: 24px; bottom: 24px;
  z-index: 2;
  color: #fff;
}

.rank-feature-content .label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent-2);
  background: rgba(255,255,255,.12);
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  backdrop-filter: blur(4px);
}

.rank-feature-content h3 {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 10px;
}

.rank-feature-content p {
  font-size: 13.5px;
  color: rgba(255,255,255,.8);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ========== 精选攻略卡片 ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

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

.feature-card .thumb {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.feature-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.feature-card:hover .thumb img { transform: scale(1.05); }

.feature-card .thumb .badge {
  position: absolute;
  left: 16px; top: 16px;
  background: rgba(8, 20, 42, .65);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 13px;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,.14);
}

.feature-card:first-child .thumb .badge { background: var(--accent-gradient); border: none; }

.feature-card .f-body {
  padding: 22px 24px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.feature-card .f-body h3 {
  font-size: 19px;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 12px;
  transition: var(--transition);
}

.feature-card:hover .f-body h3 { color: var(--primary-3); }

.feature-card .f-body p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.75;
  flex: 1;
}

.feature-card .f-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
  font-size: 12.5px;
  color: var(--text-faint);
}

.feature-card .f-meta i { font-size: 13px; color: var(--accent); }

/* ========== 流程板块 ========== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.process-item {
  position: relative;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 30px 22px 26px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.process-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(230, 126, 34, .35);
}

.process-item::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 18px; right: 20px;
  font-size: 34px;
  font-weight: 900;
  color: rgba(230, 126, 34, .12);
  line-height: 1;
}

.process-icon {
  width: 62px; height: 62px;
  margin: 0 auto 20px;
  border-radius: 18px;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  transition: var(--transition);
}

.process-item:hover .process-icon {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 8px 20px rgba(230,126,34,.35);
  transform: scale(1.06);
}

.process-item h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-item p {
  font-size: 13.5px;
  color: var(--text-soft);
  line-height: 1.7;
}

/* ========== 数据统计 ========== */
.stats-wrap {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  position: relative;
  overflow: hidden;
}

.stats-wrap::before {
  content: "";
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: rgba(230,126,34,.10);
  top: -120px; right: -80px;
}

.stats-wrap::after {
  content: "";
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,.04);
  bottom: -90px; left: 8%;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
  z-index: 2;
}

.stat-item { text-align: center; color: #fff; }

.stat-item .num {
  font-size: 42px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--accent-2);
}

.stat-item .num small { font-size: 22px; margin-left: 2px; }

.stat-item .label {
  margin-top: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.66);
  letter-spacing: .5px;
}

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

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

.faq-item:hover { border-color: rgba(230,126,34,.3); }

.faq-item.open { box-shadow: var(--shadow); border-color: rgba(230,126,34,.35); }

.faq-item button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: transparent;
  cursor: pointer;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  transition: var(--transition);
}

.faq-item button .icon {
  width: 28px; height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: var(--transition);
}

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

.faq-item .answer {
  display: none;
  padding: 0 24px 22px;
  font-size: 14.5px;
  color: var(--text-soft);
  line-height: 1.8;
  border-top: 1px solid var(--border-light);
  margin: 0 24px 0;
  padding-top: 18px;
}

.faq-item.open .answer { display: block; }

/* ========== CTA ========== */
.cta-banner {
  background: linear-gradient(120deg, rgba(6,20,42,.94), rgba(12,42,77,.85)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 58px 48px;
  position: relative;
  overflow: hidden;
  text-align: center;
  color: #fff;
  margin: var(--spacer) 0;
}

.cta-banner h2 {
  font-size: 32px;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 14px;
}

.cta-banner h2 span { color: var(--accent-2); }

.cta-banner p {
  color: rgba(255,255,255,.72);
  font-size: 15.5px;
  max-width: 560px;
  margin: 0 auto 30px;
  line-height: 1.8;
}

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

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 8px 22px rgba(230,126,34,.38);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(230,126,34,.48);
}

.btn-ghost {
  background: rgba(255,255,255,.10);
  color: #fff;
  border: 1px solid rgba(255,255,255,.24);
  backdrop-filter: blur(4px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,.20);
  transform: translateY(-3px);
}

/* ========== 页脚 ========== */
.footer {
  background: var(--primary);
  color: #b5c2d1;
  padding: 58px 28px 0;
  margin-top: auto;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 50px;
  padding-bottom: 42px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

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

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,.55);
  max-width: 380px;
}

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

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .5px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 28px; height: 3px;
  border-radius: 3px;
  background: var(--accent-gradient);
}

.footer-col a {
  display: block;
  font-size: 13.5px;
  color: rgba(255,255,255,.58);
  padding: 6px 0;
  transition: var(--transition);
}

.footer-col a:hover { color: var(--accent-2); padding-left: 6px; }

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,.40);
}

.footer-bottom span:last-child { color: rgba(255,255,255,.30); }

/* ========== 响应式 ========== */
@media (max-width: 1199px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .rank-layout { grid-template-columns: 1fr 280px; }
}

@media (max-width: 1023px) {
  .side-nav {
    transform: translateX(-100%);
    transition: transform .3s ease;
    box-shadow: 4px 0 30px rgba(0,0,0,.2);
  }

  .side-nav.open { transform: translateX(0); }

  .mobile-header { display: flex; }

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

  .page-hero { padding: 64px 0; }
  .page-hero h1 { font-size: 32px; }
  .hero-desc { font-size: 15px; }
  .section { padding: 56px 0; }

  .rank-layout { grid-template-columns: 1fr; }
  .rank-feature { min-height: 240px; }
  .rank-feature img { position: relative; height: 240px; }

  .cta-banner { padding: 44px 28px; }
  .cta-banner h2 { font-size: 26px; }

  .footer-inner { grid-template-columns: 1fr; gap: 36px; }
  .footer-links { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 767px) {
  .container { padding-left: 18px; padding-right: 18px; }

  .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .section-head p { text-align: left; }

  .cat-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .stat-item .num { font-size: 32px; }

  .page-hero h1 { font-size: 27px; }
  .page-hero { padding: 50px 0; }
  .hero-tags span { font-size: 12px; padding: 5px 12px; }

  .rank-item { gap: 12px; padding: 14px 6px; }
  .rank-item .rank-meta { display: none; }

  .feature-card .thumb { height: 180px; }

  .footer-inner { padding-bottom: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .cta-banner { padding: 36px 20px; margin: 48px 0; }
  .cta-banner h2 { font-size: 22px; }
  .btn { padding: 12px 24px; font-size: 14px; }
}

@media (max-width: 520px) {
  .footer-links { grid-template-columns: 1fr; gap: 22px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .process-grid { gap: 16px; }
  .section { padding: 44px 0; }
  .section-head h2 { font-size: 23px; }
  .faq-item button { font-size: 15px; padding: 16px 18px; }
  .faq-item .answer { padding: 0 18px 18px; margin: 0; }
}