/* roulang page: index */
:root {
  --color-primary: #0B3B2D;
  --color-primary-light: #12543F;
  --color-primary-dark: #072A20;
  --color-accent: #F59E0B;
  --color-accent-hover: #FFB224;
  --color-lime: #A3E635;
  --color-bg: #F5F6F2;
  --color-bg-light: #EAEDE8;
  --color-white: #FFFFFF;
  --color-text: #1A1C19;
  --color-text-secondary: #5B625C;
  --color-border: #E2E5DF;
  --font-primary: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-badge: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 12px 32px rgba(0,0,0,0.12);
  --space-section: 96px;
  --space-section-md: 72px;
  --space-section-sm: 56px;
  --transition: 0.3s ease;
  --container-max: 1200px;
  --nav-height: 72px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-primary);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.grid-container { max-width: var(--container-max); }
section { position: relative; }

/* Focus states */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ========== Notice Bar ========== */
.notice-bar {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.92);
  font-size: 13px;
  padding: 8px 0;
  position: relative;
  z-index: 20;
}
.notice-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.notice-inner .fa-bolt { color: var(--color-lime); margin-right: 6px; }
.notice-close {
  background: none;
  border: none;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all var(--transition);
}
.notice-close:hover { color: var(--color-accent); background: rgba(255,255,255,0.1); }

/* ========== Navigation ========== */
.main-nav {
  background: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 150;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  min-height: var(--nav-height);
}
.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--nav-height);
  gap: 20px;
}
.nav-brand {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 1px;
}
.nav-brand .brand-icon {
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 18px;
  color: var(--color-primary);
}
.nav-brand:hover { color: var(--color-accent); }
.nav-links { display: flex; align-items: center; gap: 8px; margin: 0; }
.nav-links > li { margin: 0; }
.nav-links a {
  display: block;
  padding: 10px 20px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  border-radius: 6px;
  position: relative;
  transition: all var(--transition);
  font-size: 15px;
}
.nav-links a:hover { color: var(--color-white); background: rgba(255,255,255,0.08); }
.nav-links a.active {
  color: var(--color-white);
  font-weight: 600;
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 4px;
}
.nav-more { position: relative; }
.more-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: rgba(255,255,255,0.1);
  border: none;
  color: rgba(255,255,255,0.9);
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
}
.more-btn:hover { background: rgba(255,255,255,0.2); color: var(--color-accent); }
.more-btn .fa-chevron-down { font-size: 12px; transition: transform 0.3s ease; }
.nav-more:hover .more-btn .fa-chevron-down { transform: rotate(180deg); }
.mega-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 520px;
  max-width: calc(100vw - 40px);
  background: var(--color-white);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.18);
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.98);
  transition: all 0.25s ease;
  z-index: 200;
}
.nav-more:hover .mega-panel,
.nav-more:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.mega-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.mega-left ul { display: flex; flex-direction: column; gap: 4px; }
.mega-left a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}
.mega-left a:hover {
  background: var(--color-bg);
  color: var(--color-primary);
  transform: translateX(3px);
}
.mega-right { border-left: 1px solid var(--color-border); padding-left: 24px; }
.mega-card {
  display: flex;
  gap: 12px;
  padding: 10px;
  border-radius: 10px;
  transition: all var(--transition);
  margin-bottom: 8px;
}
.mega-card:hover { background: var(--color-bg); }
.mega-card img {
  width: 72px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--color-bg-light);
}
.mega-card h4 { font-size: 14px; font-weight: 600; color: var(--color-text); line-height: 1.4; margin-bottom: 4px; }
.mega-card small { color: var(--color-text-secondary); font-size: 12px; }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 22px;
  padding: 10px;
  border-radius: 8px;
  transition: all var(--transition);
}
.menu-toggle:hover { background: rgba(255,255,255,0.1); }
.mobile-menu {
  display: none;
  background: var(--color-primary-dark);
  padding: 16px 24px;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: rgba(255,255,255,0.85);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
}
.mobile-menu a:hover { background: rgba(255,255,255,0.08); color: var(--color-accent); }
.mobile-menu a.active { background: rgba(255,255,255,0.12); color: var(--color-accent); }

/* ========== Hero ========== */
.hero {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 72px 0 120px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(163,230,53,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-primary) 0%, rgba(11,59,45,0.9) 50%, rgba(11,59,45,0.7) 100%);
  z-index: 1;
}
.hero-content { position: relative; z-index: 5; }
.hero-text-col { padding-right: 40px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--color-lime);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-badge);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 18px;
  color: var(--color-white);
  letter-spacing: 2px;
}
.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 460px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  border: none;
  transition: all var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-accent {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  box-shadow: 0 4px 16px rgba(245,158,11,0.4);
}
.btn-accent:hover {
  background: var(--color-accent-hover);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245,158,11,0.5);
}
.btn-ghost {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.6);
  color: var(--color-white);
  padding: 12px 26px;
}
.btn-ghost:hover {
  background: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-2px);
  border-color: var(--color-white);
}
.hero-visual {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.4);
  position: relative;
  transform: perspective(1200px) rotateY(-4deg);
  transition: transform var(--transition);
}
.hero-visual:hover { transform: perspective(1200px) rotateY(-1deg) translateY(-4px); }
.hero-visual img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  background: var(--color-bg-light);
}
.hero-quick-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 24px;
}
.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: var(--radius-badge);
  transition: all var(--transition);
}
.quick-link:hover {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  border-color: var(--color-accent);
}
.hero-scroll {
  position: absolute;
  bottom: -80px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.6);
  font-size: 12px;
  z-index: 10;
}
.scroll-dot {
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 12px;
  position: relative;
}
.scroll-dot::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-lime);
  border-radius: 4px;
  animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse {
  0% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
  100% { opacity: 1; transform: translateX(-50%) translateY(10px); }
}

/* ========== Section Header ========== */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--color-primary);
  position: relative;
  padding-left: 18px;
  line-height: 1.3;
}
.section-head h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 5px;
  background: var(--color-accent);
  border-radius: 4px;
}
.section-head .section-note {
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 400;
}

/* ========== Topic Index ========== */
.topic-index { padding: var(--space-section) 0; }
.topic-index-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.topic-index-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px;
  background: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.topic-index-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.topic-index-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.topic-index-item:hover::after { transform: scaleX(1); }
.topic-index-item .num {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.35;
  line-height: 1;
}
.topic-index-item .name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
}
.topic-index-item .count {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* ========== Featured Blocks ========== */
.featured-list { padding: 0 0 var(--space-section); }
.featured-block { margin-bottom: 80px; }
.featured-block:last-child { margin-bottom: 0; }
.featured-img {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  height: 100%;
  min-height: 280px;
  background: var(--color-bg-light);
  position: relative;
}
.featured-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
  transition: transform 0.5s ease;
}
.featured-img:hover img { transform: scale(1.03); }
.featured-content { padding: 20px 0 20px 20px; }
.section-tag {
  display: inline-block;
  background: rgba(245,158,11,0.15);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-badge);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.featured-content h3 {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 20px;
  line-height: 1.3;
}
.content-list { display: flex; flex-direction: column; gap: 6px; }
.content-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  background: var(--color-white);
  border-radius: 10px;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.content-item:hover {
  background: var(--color-bg-light);
  border-color: var(--color-border);
  transform: translateX(4px);
  box-shadow: var(--shadow-card);
}
.content-item .item-num {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text-secondary);
  opacity: 0.4;
  min-width: 34px;
  text-align: center;
  line-height: 1;
}
.content-item .item-body { flex: 1; }
.content-item h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  line-height: 1.4;
  transition: color var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.content-item:hover h4 { color: var(--color-primary); }
.content-item p {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.content-item small {
  font-size: 12px;
  color: var(--color-text-secondary);
}
.content-item .arrow {
  color: var(--color-accent);
  opacity: 0;
  transform: translateX(-5px);
  transition: all var(--transition);
}
.content-item:hover .arrow { opacity: 1; transform: translateX(0); }

/* ========== Latest News ========== */
.latest-news {
  background: var(--color-white);
  padding: var(--space-section) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-card {
  display: flex;
  gap: 20px;
  background: var(--color-bg);
  border-radius: var(--radius-card);
  padding: 20px;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.news-card:hover {
  background: var(--color-white);
  border-color: var(--color-border);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.news-card-lg {
  display: block;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
  border-radius: var(--radius-card);
  padding: 32px;
  position: relative;
  overflow: hidden;
  min-height: 200px;
}
.news-card-lg::before {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(245,158,11,0.4) 0%, transparent 70%);
  pointer-events: none;
}
.news-card-lg:hover { transform: translateY(-3px); box-shadow: var(--shadow-card-hover); }
.news-card-lg .news-cat {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-badge);
  margin-bottom: 16px;
}
.news-card-lg h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
  line-height: 1.4;
  max-width: 70%;
}
.news-card-lg p {
  color: rgba(255,255,255,0.8);
  font-size: 15px;
  line-height: 1.6;
  max-width: 70%;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-lg .news-date {
  color: rgba(255,255,255,0.6);
  font-size: 13px;
}
.news-card-lg .read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  color: var(--color-lime);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition);
}
.news-card-lg:hover .read-more { transform: translateX(4px); }
.news-cover {
  width: 180px;
  min-height: 120px;
  border-radius: 10px;
  background: var(--color-bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.cover-placeholder {
  font-size: 36px;
  color: var(--color-primary);
  opacity: 0.3;
}
.news-body { flex: 1; min-width: 0; }
.news-body .news-cat {
  display: inline-block;
  background: rgba(245,158,11,0.15);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: var(--radius-badge);
  margin-bottom: 8px;
}
.news-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}
.news-card:hover .news-body h3 { color: var(--color-primary); }
.news-body p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-body .news-date {
  font-size: 12px;
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: var(--color-bg);
  border-radius: var(--radius-card);
}
.empty-state .fa-inbox { font-size: 42px; color: var(--color-primary); opacity: 0.3; margin-bottom: 12px; }
.empty-state p { color: var(--color-text-secondary); font-size: 15px; }

/* ========== Related ========== */
.related-section { padding: var(--space-section) 0; }
.related-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent) var(--color-bg-light);
}
.related-scroll::-webkit-scrollbar { height: 6px; }
.related-scroll::-webkit-scrollbar-track { background: var(--color-bg-light); border-radius: 10px; }
.related-scroll::-webkit-scrollbar-thumb { background: var(--color-accent); border-radius: 10px; }
.related-card {
  min-width: 300px;
  flex-shrink: 0;
  background: var(--color-white);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.related-card .card-img {
  height: 160px;
  background: var(--color-bg-light);
  position: relative;
  overflow: hidden;
}
.related-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .card-img img { transform: scale(1.03); }
.related-card .card-body { padding: 20px; }
.related-card .card-body .tag {
  display: inline-block;
  background: rgba(245,158,11,0.15);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: var(--radius-badge);
  margin-bottom: 10px;
}
.related-card .card-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card .card-body .date { font-size: 12px; color: var(--color-text-secondary); }

/* ========== CTA ========== */
.cta-section {
  background: var(--color-primary);
  padding: 64px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(245,158,11,0.25) 0%, transparent 70%);
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(163,230,53,0.15) 0%, transparent 70%);
}
.cta-inner { position: relative; z-index: 2; max-width: 700px; margin: 0 auto; padding: 0 24px; }
.cta-inner h2 {
  color: var(--color-white);
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 10px;
}
.cta-inner p {
  color: rgba(255,255,255,0.75);
  font-size: 15px;
  margin-bottom: 28px;
}
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-light {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.btn-light:hover {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245,158,11,0.4);
}

/* ========== FAQ ========== */
.faq-section { padding: var(--space-section) 0; }
.faq-section .section-head { margin-bottom: 32px; }
.faq-wrapper { max-width: 820px; margin: 0 auto; }
.accordion { background: var(--color-white); border-radius: var(--radius-card); box-shadow: var(--shadow-card); overflow: hidden; }
.accordion-item { border-bottom: 1px solid var(--color-border); }
.accordion-item:last-child { border-bottom: none; }
.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-white);
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
}
.accordion-title::after {
  content: '+';
  font-size: 24px;
  font-weight: 300;
  color: var(--color-primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.accordion-item.is-active > .accordion-title { color: var(--color-primary); background: var(--color-bg-light); }
.accordion-item.is-active > .accordion-title::after {
  content: '−';
  transform: rotate(180deg);
}
.accordion-content {
  padding: 0 24px 20px;
  background: var(--color-bg-light);
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* ========== Footer ========== */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
  padding: 64px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.footer-brand .brand-icon {
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 16px;
  color: var(--color-primary);
}
.footer-brand:hover { color: var(--color-accent); }
.footer p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.6); margin-bottom: 0; }
.footer h4 {
  color: var(--color-white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
.footer h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 3px;
}
.footer ul { display: flex; flex-direction: column; gap: 8px; }
.footer ul a {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  transition: all var(--transition);
}
.footer ul a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-contact { font-size: 14px; line-height: 2; color: rgba(255,255,255,0.65); }
.footer-contact a { color: rgba(255,255,255,0.65); }
.footer-contact a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom span { font-size: 13px; color: rgba(255,255,255,0.45); }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .topic-index-bar { grid-template-columns: repeat(3, 1fr); }
  .hero h1 { font-size: 40px; }
  .featured-content { padding-left: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-quick-links { margin-top: 16px; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .nav-links { display: none; }
  .nav-more { display: none; }
  .menu-toggle { display: block; }
  .nav-brand { font-size: 19px; }
  .nav-brand .brand-icon { width: 30px; height: 30px; font-size: 14px; }
  .hero { padding: 48px 0 90px; }
  .hero-text-col { padding-right: 0; margin-bottom: 28px; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .hero-visual img { height: 200px; }
  .hero-quick-links { gap: 8px; }
  .quick-link { font-size: 12px; padding: 6px 14px; }
  .topic-index-bar { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .topic-index-item { padding: 14px 12px; }
  .topic-index-item .num { font-size: 18px; }
  .topic-index-item .name { font-size: 13px; }
  .section-head h2 { font-size: 22px; }
  .section-head .section-note { font-size: 12px; }
  .featured-block { margin-bottom: 60px; }
  .featured-img img { min-height: 200px; }
  .featured-content h3 { font-size: 20px; }
  .content-item .item-num { font-size: 16px; min-width: 26px; }
  .content-item h4 { font-size: 14px; }
  .news-card-lg { padding: 24px; }
  .news-card-lg h3 { font-size: 19px; max-width: 100%; }
  .news-card-lg p { max-width: 100%; }
  .news-card { flex-direction: column; padding: 16px; }
  .news-cover { width: 100%; min-height: 80px; }
  .news-cover .cover-placeholder { font-size: 24px; }
  .related-card { min-width: 80%; }
  .cta-inner h2 { font-size: 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .topic-index-bar { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .hero-scroll { display: none; }
}

/* roulang page: article */
:root {
  --color-primary: #0B3B2D;
  --color-primary-light: #145243;
  --color-primary-dark: #06241C;
  --color-accent: #F59E0B;
  --color-accent-hover: #FBBF24;
  --color-highlight: #A3E635;
  --color-bg: #F5F6F2;
  --color-surface: #FFFFFF;
  --color-text: #1A1C19;
  --color-text-secondary: #5B625C;
  --color-text-light: #FFFFFF;
  --color-border: #E5E8E2;
  --color-shadow: rgba(0, 0, 0, 0.06);
  --font-primary: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-badge: 999px;
  --shadow-card: 0 8px 24px var(--color-shadow);
  --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.12);
  --transition-default: all 0.25s ease;
  --spacing-section: 88px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

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

/* ===== 导航 ===== */
.main-nav {
  background: var(--color-primary);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 72px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 32px;
  position: relative;
}

.nav-brand {
  display: flex;
  align-items: center;
  color: var(--color-text-light);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  gap: 8px;
  white-space: nowrap;
}

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

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #FACC6C 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0;
}

.nav-links li {
  position: relative;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  font-weight: 500;
  padding: 26px 0;
  position: relative;
  transition: color 0.25s;
}

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

.nav-links a.active {
  color: var(--color-highlight);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-accent);
  border-radius: 4px 4px 0 0;
}

.nav-links a:focus-visible {
  outline: 2px solid var(--color-highlight);
  outline-offset: 4px;
  border-radius: 4px;
}

.nav-more {
  margin-left: auto;
  position: relative;
}

.more-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.9);
  padding: 10px 18px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-default);
}

.more-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.more-btn:focus-visible {
  outline: 2px solid var(--color-highlight);
  outline-offset: 2px;
}

.more-btn .fa-chevron-down {
  font-size: 12px;
  transition: transform 0.3s;
}

.more-btn:hover .fa-chevron-down {
  transform: rotate(180deg);
}

.mega-panel {
  position: absolute;
  top: calc(100% + 16px);
  right: 0;
  width: 480px;
  background: var(--color-surface);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  padding: 24px;
  display: none;
  z-index: 200;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-more:hover .mega-panel,
.nav-more:focus-within .mega-panel,
.mega-panel:hover {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.mega-panel::before {
  content: '';
  position: absolute;
  top: -12px;
  right: 30px;
  width: 24px;
  height: 24px;
  background: var(--color-surface);
  transform: rotate(45deg);
  box-shadow: -4px -4px 12px rgba(0, 0, 0, 0.04);
}

.mega-left {
  margin-bottom: 16px;
}

.mega-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.mega-left ul {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.mega-left ul li a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 500;
  background: var(--color-bg);
  transition: var(--transition-default);
}

.mega-left ul li a:hover {
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-primary);
  transform: translateX(2px);
}

.mega-left ul li a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.mega-right {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.mega-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border-radius: 10px;
  transition: var(--transition-default);
}

.mega-card:hover {
  background: var(--color-bg);
  transform: translateY(-2px);
}

.mega-card img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  background: #E8EAE4;
}

.mega-card h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 4px;
}

.mega-card small {
  font-size: 12px;
  color: var(--color-text-secondary);
}

.mega-cat {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(245, 158, 11, 0.15);
  padding: 2px 8px;
  border-radius: var(--radius-badge);
  margin-bottom: 4px;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-light);
  font-size: 22px;
  cursor: pointer;
  padding: 10px;
  border-radius: var(--radius-btn);
  margin-left: auto;
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--color-highlight);
  outline-offset: 2px;
}

.mobile-menu {
  display: none;
  background: var(--color-primary);
  padding: 16px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-direction: column;
  gap: 4px;
}

.mobile-menu a {
  display: block;
  padding: 14px 16px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-btn);
  transition: var(--transition-default);
}

.mobile-menu a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-accent);
}

.mobile-menu a.active {
  color: var(--color-highlight);
  background: rgba(163, 230, 53, 0.1);
}

.mobile-menu a:focus-visible {
  outline: 2px solid var(--color-highlight);
  outline-offset: 2px;
}

/* ===== 页面主体 ===== */
.main-content {
  padding-top: 72px;
  min-height: 100vh;
}

/* ===== 文章头部 ===== */
.article-header {
  background: var(--color-bg);
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--color-border);
}

.breadcrumbs {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}

.breadcrumbs a {
  color: var(--color-text-secondary);
  padding: 4px 0;
}

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

.breadcrumbs .current {
  color: var(--color-primary);
  font-weight: 500;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-header h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 12px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

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

.article-meta i {
  color: var(--color-accent);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: auto;
}

.tag-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-primary);
  background: rgba(245, 158, 11, 0.15);
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  transition: var(--transition-default);
}

a.tag-badge:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

/* ===== 文章内容 ===== */
.article-body-wrap {
  padding: 48px 0 64px;
}

.article-body {
  max-width: 760px;
  margin: 0 auto;
}

.article-content {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text);
  background: var(--color-surface);
  padding: 48px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.article-content p {
  margin-bottom: 1.5em;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin: 1.8em 0 0.8em;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-border);
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin: 1.5em 0 0.6em;
}

.article-content blockquote {
  border-left: 4px solid var(--color-accent);
  background: var(--color-bg);
  margin: 1.5em 0;
  padding: 16px 24px;
  border-radius: 0 10px 10px 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

.article-content ul,
.article-content ol {
  margin: 1em 0;
  padding-left: 1.5em;
}

.article-content li {
  margin-bottom: 0.5em;
}

.article-content img {
  border-radius: 10px;
  margin: 1.5em 0;
  width: 100%;
  object-fit: cover;
  background: #E8EAE4;
}

.article-content img + em {
  display: block;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: -1em;
  margin-bottom: 1.5em;
}

.article-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.empty-state {
  text-align: center;
  padding: 80px 24px;
}

.empty-state i {
  font-size: 48px;
  color: var(--color-accent);
  margin-bottom: 16px;
  display: inline-block;
}

.empty-state h2 {
  font-size: 22px;
  color: var(--color-text);
  margin-bottom: 8px;
}

.empty-state p {
  color: var(--color-text-secondary);
  font-size: 15px;
  margin-bottom: 20px;
}

.btn-back-home {
  display: inline-block;
  padding: 12px 28px;
  background: var(--color-primary);
  color: var(--color-text-light);
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition-default);
}

.btn-back-home:hover {
  background: var(--color-accent);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.btn-back-home:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ===== 返回顶部 ===== */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-text-light);
  border: none;
  border-radius: 12px;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card-hover);
  transition: var(--transition-default);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  z-index: 500;
}

.back-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--color-accent);
  color: var(--color-primary);
  transform: translateY(-3px);
}

.back-top:focus-visible {
  outline: 2px solid var(--color-highlight);
  outline-offset: 2px;
}

/* ===== 相关推荐 ===== */
.recommend-section {
  padding: 64px 0;
  background: var(--color-bg);
}

.recommend-header {
  margin-bottom: 32px;
}

.recommend-header h2 {
  font-size: clamp(24px, 3vw, 28px);
  font-weight: 700;
  color: var(--color-text);
}

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

.recommend-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition-default);
  display: flex;
  flex-direction: column;
}

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

.recommend-card:focus-within {
  outline: 2px solid var(--color-accent);
  border-radius: var(--radius-card);
}

.recommend-card-img {
  position: relative;
  width: 100%;
  height: 180px;
  overflow: hidden;
  background: #E8EAE4;
}

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

.recommend-card:hover .recommend-card-img img {
  transform: scale(1.03);
}

.recommend-card-img .card-cat {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(11, 59, 45, 0.85);
  color: var(--color-highlight);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  backdrop-filter: blur(4px);
}

.recommend-card-body {
  padding: 20px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.recommend-card-body h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.recommend-card-body p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.recommend-card-link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.recommend-card-link i {
  transition: transform 0.25s;
  font-size: 12px;
}

.recommend-card-link:hover {
  color: var(--color-accent);
}

.recommend-card-link:hover i {
  transform: translateX(4px);
}

/* ===== 返回入口 ===== */
.article-return {
  padding: 8px 0 56px;
}

.return-actions {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-return {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  background: var(--color-surface);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  transition: var(--transition-default);
}

.btn-return:hover {
  background: var(--color-primary);
  color: var(--color-text-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.btn-return:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-return i {
  font-size: 13px;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--color-primary);
  padding: 64px 0 0;
  color: rgba(255, 255, 255, 0.9);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

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

.footer-brand .brand-icon {
  width: 34px;
  height: 34px;
  font-size: 18px;
}

.footer p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.footer h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 8px;
}

.footer ul li a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  transition: var(--transition-default);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
}

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

.footer ul li a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

.footer-contact i {
  color: var(--color-accent);
  font-size: 14px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1200px) {
  .recommend-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

@media screen and (max-width: 1024px) {
  :root {
    --spacing-section: 72px;
  }
  
  .nav-links {
    gap: 20px;
  }
  
  .mega-panel {
    width: 420px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  
  .recommend-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 768px) {
  :root {
    --spacing-section: 56px;
  }
  
  .nav-container {
    padding: 0 16px;
    gap: 16px;
  }
  
  .nav-brand {
    font-size: 20px;
  }
  
  .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 17px;
  }
  
  .nav-links {
    display: none;
  }
  
  .nav-more {
    display: none;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .main-header {
    height: 64px;
  }
  
  .nav-container {
    height: 64px;
  }
  
  .main-content {
    padding-top: 64px;
  }
  
  .article-header {
    padding: 32px 0 28px;
  }
  
  .article-header h1 {
    font-size: 28px;
  }
  
  .article-content {
    padding: 28px 20px;
    font-size: 16px;
  }
  
  .recommend-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  
  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
  
  .article-meta {
    flex-direction: row;
    gap: 12px;
  }
  
  .article-tags {
    margin-left: 0;
    width: 100%;
  }
  
  .back-top {
    bottom: 20px;
    right: 20px;
  }
  
  .return-actions {
    flex-direction: column;
    padding: 0 24px;
  }
  
  .btn-return {
    justify-content: center;
  }
  
  .breadcrumbs .current {
    max-width: 180px;
  }
}

@media screen and (max-width: 520px) {
  .container,
  .grid-container {
    padding: 0 16px;
  }
  
  .article-header h1 {
    font-size: 24px;
  }
  
  .article-meta {
    flex-wrap: wrap;
    font-size: 13px;
  }
  
  .recommend-card-img {
    height: 160px;
  }
  
  .recommend-card-body {
    padding: 16px;
  }
  
  .recommend-card-body h3 {
    font-size: 16px;
  }
  
  .article-content {
    padding: 20px 16px;
    line-height: 1.85;
  }
  
  .article-content h2 {
    font-size: 21px;
  }
  
  .article-content h3 {
    font-size: 18px;
  }
  
  .footer {
    padding-top: 48px;
  }
  
  .footer-grid {
    gap: 24px;
  }
}

/* ===== Foundation 覆盖 ===== */
.button {
  transition: var(--transition-default);
}

.button:focus-visible {
  outline: 2px solid var(--color-highlight);
  outline-offset: 2px;
}

.accordion-title {
  font-family: var(--font-primary);
}

/* ===== JavaScript ===== */
.mobile-menu.show {
  display: flex;
}

.nav-more.active .mega-panel {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.article-content > * {
  animation: fadeInUp 0.4s ease-out forwards;
}

.article-content > *:nth-child(1) { animation-delay: 0.05s; }
.article-content > *:nth-child(2) { animation-delay: 0.1s; }
.article-content > *:nth-child(3) { animation-delay: 0.15s; }
.article-content > *:nth-child(4) { animation-delay: 0.2s; }
.article-content > *:nth-child(5) { animation-delay: 0.25s; }
.article-content > *:nth-child(6) { animation-delay: 0.3s; }

/* roulang page: category1 */
:root {
    --primary: #0B3B2D;
    --primary-light: #145242;
    --primary-dark: #062A1F;
    --accent: #F59E0B;
    --accent-light: #FDBE44;
    --highlight: #A3E635;
    --bg-page: #F5F6F2;
    --bg-card: #FFFFFF;
    --text-main: #1A1C19;
    --text-secondary: #5B625C;
    --text-light: #F9FBF7;
    --border-light: #E2E5DE;
    --radius-card: 14px;
    --radius-btn: 8px;
    --radius-tag: 999px;
    --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
    --shadow-hover: 0 12px 32px rgba(0,0,0,0.12);
    --transition: 0.3s ease;
    --space-xl: 96px;
    --space-lg: 72px;
    --space-md: 48px;
    --space-sm: 24px;
    --font-base: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

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

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

body {
    font-family: var(--font-base);
    background-color: var(--bg-page);
    color: var(--text-main);
    line-height: 1.7;
    font-size: 16px;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
}

ul {
    list-style: none;
}

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

/* ========== 导航 ========== */
.main-nav {
    background-color: var(--primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
    flex-shrink: 0;
}

.brand-icon {
    width: 36px;
    height: 36px;
    background: var(--accent);
    color: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 900;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    margin: 0;
}

.nav-links li {
    margin: 0;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 16px;
    font-weight: 500;
    padding: 8px 2px;
    position: relative;
    transition: color var(--transition);
    outline: none;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: #fff;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    transform: scaleX(1);
}

.nav-links a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 4px;
}

.nav-more {
    position: relative;
}

.more-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 15px;
    padding: 10px 18px;
    border-radius: var(--radius-btn);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background var(--transition), border-color var(--transition);
    min-height: 44px;
}

.more-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.35);
}

.more-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.more-btn i {
    transition: transform var(--transition);
    font-size: 12px;
}

.nav-more:hover .more-btn i {
    transform: rotate(180deg);
}

.mega-panel {
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.18);
    width: 480px;
    padding: 28px;
    display: flex;
    gap: 32px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    margin-top: 8px;
    z-index: 1200;
}

.mega-panel::before {
    content: "";
    position: absolute;
    top: -16px;
    right: 32px;
    border: 8px solid transparent;
    border-bottom-color: #fff;
}

.nav-more:hover .mega-panel,
.nav-more:focus-within .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mega-left,
.mega-right {
    flex: 1;
}

.mega-label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--accent);
    display: inline-block;
}

.mega-left ul li {
    margin-bottom: 4px;
}

.mega-left a {
    display: block;
    padding: 8px 12px;
    border-radius: 8px;
    color: var(--text-main);
    font-size: 14px;
    transition: background var(--transition), color var(--transition), padding-left var(--transition);
}

.mega-left a:hover {
    background: rgba(11, 59, 45, 0.06);
    color: var(--primary);
    padding-left: 18px;
}

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

.mega-right {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.mega-card {
    display: flex;
    gap: 12px;
    background: var(--bg-page);
    border-radius: 12px;
    padding: 10px;
    transition: box-shadow var(--transition), transform var(--transition);
    border: 1px solid transparent;
}

.mega-card:hover,
.mega-card:focus-visible {
    box-shadow: var(--shadow-card);
    transform: translateY(-2px);
    border-color: var(--border-light);
    outline: none;
}

.mega-card img {
    width: 88px;
    height: 66px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
    background: #d5dbcd;
}

.mega-card > div {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}

.mega-cat {
    font-size: 11px;
    color: var(--accent);
    font-weight: 700;
}

.mega-card h4 {
    font-size: 14px;
    color: var(--text-main);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 2px 0;
}

.mega-card small {
    font-size: 11px;
    color: var(--text-secondary);
}

.menu-toggle {
    display: none;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-btn);
    color: #fff;
    font-size: 20px;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
}

.mobile-menu {
    display: none;
    background: var(--primary-dark);
    padding: 12px 24px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-menu a {
    display: block;
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    padding: 14px 12px;
    border-radius: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: background var(--transition), padding-left var(--transition);
    min-height: 44px;
    display: flex;
    align-items: center;
}

.mobile-menu a:hover,
.mobile-menu a.active {
    background: rgba(255, 255, 255, 0.1);
    padding-left: 20px;
    color: #fff;
}

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

/* ========== 分类 Hero ========== */
.category-hero {
    background: var(--primary);
    position: relative;
    overflow: hidden;
    padding: 80px 0 0;
}

.category-hero::before {
    content: "";
    position: absolute;
    top: -120px;
    right: -80px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(163, 230, 53, 0.15), transparent 65%);
    pointer-events: none;
}

.category-hero::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.hero-grid {
    display: flex;
    align-items: center;
    gap: 48px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.hero-content {
    flex: 1;
    color: #fff;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 158, 11, 0.18);
    border: 1px solid rgba(245, 158, 11, 0.4);
    color: var(--accent-light);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: var(--radius-tag);
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.hero-badge::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--highlight);
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(163, 230, 53, 0.6);
}

.category-hero .hero-content h1 {
    font-size: 48px;
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.hero-content .hero-sub {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.82);
    line-height: 1.8;
    max-width: 520px;
    margin-bottom: 32px;
}

.crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 12px;
}

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

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

.crumb span {
    color: var(--accent-light);
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
    padding: 12px 28px;
    border-radius: var(--radius-btn);
    font-size: 16px;
    font-weight: 600;
    transition: all var(--transition);
    border: 2px solid transparent;
    outline: none;
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--primary);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
}

.btn-outline {
    border-color: rgba(255, 255, 255, 0.6);
    color: #fff;
    background: transparent;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    transform: translateY(-2px);
}

.btn:focus-visible {
    outline: 3px solid var(--highlight);
    outline-offset: 2px;
}

.hero-image {
    flex: 1;
    max-width: 520px;
}

.hero-image img {
    border-radius: 18px;
    object-fit: cover;
    height: 360px;
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-anchors {
    background: rgba(0, 0, 0, 0.18);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 56px;
    padding: 16px 0;
}

.anchor-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    gap: 12px;
    overflow-x: auto;
    scrollbar-width: none;
}

.anchor-inner::-webkit-scrollbar {
    display: none;
}

.anchor-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 20px;
    border-radius: var(--radius-tag);
    white-space: nowrap;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    min-height: 40px;
}

.anchor-link:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--primary);
}

.anchor-link:focus-visible {
    outline: 2px solid var(--highlight);
    outline-offset: 2px;
}

/* ========== 数据行 ========== */
.stat-strip {
    padding: 40px 0;
    border-bottom: 1px solid var(--border-light);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-item {
    text-align: center;
    padding: 20px 16px;
    background: var(--bg-card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.stat-num {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
}

.stat-num small {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ========== 专题合集区 ========== */
.section-topic {
    padding: 80px 0;
    border-bottom: 1px solid var(--border-light);
    position: relative;
}

.section-topic:nth-child(even) {
    background: #FBFCF8;
}

.topic-inner {
    display: flex;
    align-items: center;
    gap: 56px;
}

.topic-media {
    flex: 0 0 42%;
    position: relative;
}

.topic-media img {
    border-radius: var(--radius-card);
    object-fit: cover;
    aspect-ratio: 4 / 3;
    box-shadow: var(--shadow-card);
    background: #d5dbcd;
    transition: transform var(--transition);
}

.topic-media:hover img {
    transform: scale(1.02);
}

.topic-media::after {
    content: "";
    position: absolute;
    inset: 16px -16px -16px 16px;
    border-radius: var(--radius-card);
    border: 2px solid var(--accent);
    opacity: 0.35;
    z-index: -1;
}

.topic-content {
    flex: 1;
}

.topic-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 28px;
}

.topic-head .topic-index {
    font-size: 56px;
    font-weight: 800;
    color: rgba(11, 59, 45, 0.1);
    line-height: 1;
    font-family: Georgia, serif;
}

.topic-head h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--primary);
    margin: 8px 0 0;
    letter-spacing: 0.5px;
}

.topic-head p {
    color: var(--text-secondary);
    font-size: 15px;
    margin-top: 8px;
}

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

.topic-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
    transition: background var(--transition), padding-left var(--transition);
    border-radius: 8px;
    margin-bottom: 0;
}

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

.topic-item:hover {
    background: rgba(11, 59, 45, 0.03);
    padding-left: 10px;
}

.topic-num {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    background: rgba(245, 158, 11, 0.12);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-tag);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.topic-info h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 4px;
    transition: color var(--transition);
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.topic-info h4 a {
    display: inline;
}

.topic-info h4 a:hover {
    color: var(--primary);
}

.topic-info p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0 0 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.6;
}

.topic-date {
    font-size: 12px;
    color: #9aa39c;
}

.topic-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    background: rgba(11, 59, 45, 0.06);
    font-size: 14px;
    flex-shrink: 0;
    transition: background var(--transition), color var(--transition), transform var(--transition);
    border: none;
}

.topic-link:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateX(4px);
}

.topic-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ========== 谁是读者区 ========== */
.audience-section {
    padding: var(--space-xl) 0;
    background: var(--bg-page);
}

.audience-section .section-title {
    text-align: center;
    margin-bottom: 48px;
}

.audience-section .section-title h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.audience-section .section-title p {
    color: var(--text-secondary);
    font-size: 16px;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.audience-card {
    background: var(--bg-card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 32px 24px;
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.03);
    position: relative;
    overflow: hidden;
}

.audience-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

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

.audience-card:hover::before {
    transform: scaleX(1);
}

.audience-card .icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(11, 59, 45, 0.07);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 22px;
    color: var(--primary);
}

.audience-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}

.audience-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ========== FAQ ========== */
.faq-section {
    padding: var(--space-xl) 0;
    background: #fbfcf8;
    border-top: 1px solid var(--border-light);
}

.section-title {
    text-align: center;
    margin-bottom: 44px;
}

.section-title h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.section-title p {
    font-size: 16px;
    color: var(--text-secondary);
}

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

.accordion {
    background: transparent;
}

.accordion-item {
    background: var(--bg-card);
    border-radius: 12px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: box-shadow var(--transition);
}

.accordion-item:hover {
    box-shadow: var(--shadow-card);
}

.accordion-item.is-active {
    border-color: rgba(11, 59, 45, 0.15);
    box-shadow: var(--shadow-card);
}

.accordion-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    background: transparent;
    border: none;
    outline: none;
    position: relative;
    min-height: 56px;
}

.accordion-title::before,
.accordion-title::after {
    content: "";
    width: 14px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    right: 28px;
    transition: transform 0.3s ease;
}

.accordion-title::after {
    background: var(--accent);
    transform: rotate(90deg);
}

.accordion-item.is-active .accordion-title::after {
    transform: rotate(0deg);
}

.accordion-title:hover {
    background: rgba(11, 59, 45, 0.02);
}

.accordion-title:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
    border-radius: 12px;
}

.accordion-content {
    padding: 0 28px 24px;
    background: #fbfcf9;
    border-top: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}

.accordion-content p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}

/* ========== CTA ========== */
.cta-section {
    background: var(--primary);
    position: relative;
    overflow: hidden;
    padding: 72px 0;
}

.cta-section::before {
    content: "";
    position: absolute;
    top: -60px;
    right: 20%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(163, 230, 53, 0.08);
}

.cta-section::after {
    content: "";
    position: absolute;
    bottom: -80px;
    left: 10%;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(245, 158, 11, 0.1);
}

.cta-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta-inner h2 {
    font-size: 34px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.cta-inner p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 32px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

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

.btn-white {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.btn-white:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}

.btn-ghost-light {
    border-color: rgba(255, 255, 255, 0.5);
    color: #fff;
    background: transparent;
}

.btn-ghost-light:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
}

/* ========== 页脚 ========== */
.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.88);
    padding-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.footer-brand .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 15px;
    border-radius: 8px;
}

.footer p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.8;
}

.footer h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
    position: relative;
    display: inline-block;
}

.footer h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 28px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

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

.footer ul a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
    transition: color var(--transition), padding-left var(--transition);
}

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

.footer ul a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    padding-left: 6px;
}

.footer-contact p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-contact i {
    color: var(--accent);
}

.footer-bottom {
    padding: 24px 0;
}

.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}

.footer-bottom-inner a {
    color: rgba(255, 255, 255, 0.45);
}

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

/* ========== 响应式 ========== */
@media screen and (max-width: 1024px) {
    .category-hero .hero-content h1 {
        font-size: 34px;
    }

    .hero-grid {
        gap: 28px;
    }

    .hero-image img {
        height: 300px;
    }

    .topic-inner {
        gap: 32px;
    }

    .topic-head h2 {
        font-size: 24px;
    }

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

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

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

@media screen and (max-width: 768px) {
    .nav-container {
        height: 64px;
        padding: 0 16px;
    }

    .nav-links,
    .nav-more {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .mobile-menu.is-active {
        display: block;
    }

    .category-hero {
        padding: 48px 0 0;
    }

    .hero-grid {
        flex-direction: column;
        padding: 0 16px;
        gap: 24px;
    }

    .hero-content {
        order: 2;
    }

    .hero-image {
        order: 1;
        max-width: none;
    }

    .hero-image img {
        height: 220px;
    }

    .category-hero .hero-content h1 {
        font-size: 28px;
    }

    .hero-content .hero-sub {
        font-size: 15px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        min-height: 48px;
    }

    .anchor-inner {
        padding: 0 16px;
    }

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

    .topic-inner {
        flex-direction: column;
        gap: 28px;
    }

    .topic-inner.reversed {
        flex-direction: column;
    }

    .topic-media {
        width: 100%;
        flex: none;
    }

    .topic-media img {
        aspect-ratio: 16 / 10;
    }

    .topic-media::after {
        display: none;
    }

    .topic-head .topic-index {
        font-size: 40px;
    }

    .topic-item {
        padding: 14px 0;
    }

    .topic-info h4 {
        font-size: 15px;
    }

    .topic-info p {
        font-size: 13px;
    }

    .topic-date {
        font-size: 11px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .faq-section,
    .cta-section,
    .audience-section {
        padding: 56px 0;
    }

    .accordion-title {
        padding: 18px 20px;
        font-size: 15px;
        padding-right: 44px;
    }

    .accordion-content {
        padding: 0 20px 18px;
        font-size: 14px;
    }

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

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

    .footer {
        padding-top: 48px;
    }
}

@media screen and (max-width: 640px) {
    .stat-grid {
        gap: 12px;
    }

    .stat-item {
        padding: 14px 10px;
    }

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

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

    .audience-card {
        padding: 24px 20px;
    }

    .audience-card .audience-card {
        display: flex;
        align-items: center;
        text-align: left;
        gap: 16px;
    }

    .audience-card .icon-wrap {
        margin: 0;
        flex-shrink: 0;
    }

    .section-title p {
        font-size: 14px;
    }
}