/* roulang page: index */
:root {
  --primary: #0D9488;
  --primary-dark: #0F766E;
  --primary-deep: #115E59;
  --accent: #F97316;
  --accent-light: #FFF4EC;
  --bg: #F7F6F2;
  --white: #FFFFFF;
  --text: #1F2937;
  --text-light: #6B7280;
  --text-weak: #9CA3AF;
  --line: #E8E6E0;
  --success: #16A34A;
  --warning: #F59E0B;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  --space-section: 96px;
  --font-title: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
ul { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-title);
  line-height: 1.25;
  color: var(--text);
}
h1 { font-size: clamp(2.5rem, 5vw, 3.75rem); font-weight: 900; }
h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); font-weight: 800; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-pad { padding: var(--space-section) 0; }

/* 按钮系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 12px;
  padding: 14px 32px;
  transition: all 0.2s ease;
  outline-offset: 3px;
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover {
  background: #EA6A0E;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-secondary:hover {
  background: var(--primary);
  color: var(--white);
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
}
.btn-light {
  background: var(--white);
  color: var(--primary-deep);
}
.btn-light:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-lg);
}
.btn-block { width: 100%; }

/* 标签样式 */
.tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid rgba(249, 115, 22, 0.18);
}
.tag-green {
  background: rgba(13, 148, 136, 0.08);
  color: var(--primary);
  border-color: rgba(13, 148, 136, 0.18);
}

/* 浮动 Dock 导航 */
.dock-wrap {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: calc(100% - 32px);
  max-width: 860px;
  transition: all 0.3s ease;
}
.dock-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 8px 12px 8px 20px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.dock-wrap.scrolled .dock-nav {
  background: rgba(255,255,255,0.97);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 900;
  font-size: 0.9rem;
  letter-spacing: -1px;
}
.brand-name {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--text);
  white-space: nowrap;
}
.dock-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.dock-menu a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-light);
  padding: 6px 14px;
  border-radius: 999px;
  transition: all 0.2s ease;
  position: relative;
  white-space: nowrap;
}
.dock-menu a:hover { color: var(--primary); background: rgba(13,148,136,0.06); }
.dock-menu a.active {
  color: var(--primary);
  font-weight: 700;
  background: rgba(13,148,136,0.08);
}
.dock-menu a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.dock-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.dock-search {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  background: transparent;
  transition: 0.2s ease;
  cursor: pointer;
}
.dock-search:hover { color: var(--primary); background: rgba(13,148,136,0.06); }
.dock-search:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.dock-cta {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-title);
  color: var(--white);
  background: var(--accent);
  border-radius: 999px;
  padding: 8px 20px;
  transition: all 0.2s ease;
}
.dock-cta:hover { background: #EA6A0E; }
.dock-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.dock-burger {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  color: var(--text);
  background: transparent;
  cursor: pointer;
}
.dock-burger:hover { background: rgba(13,148,136,0.06); }
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--white);
  z-index: 999;
  padding: 100px 32px 40px;
  box-shadow: var(--shadow-lg);
  border-radius: 0 0 20px 20px;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.mobile-menu a.active { color: var(--primary); }
.mobile-menu a:last-child { border-bottom: none; }

/* Hero */
.hero {
  min-height: 80vh;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 70%, var(--primary-dark) 100%);
  position: relative;
  display: flex;
  align-items: center;
  padding: 160px 0 96px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.5) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.05;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -120px;
  right: -80px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: rgba(249,115,22,0.12);
  filter: blur(60px);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; align-items: center; }
.hero-content { padding-right: 40px; }
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.14);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.2);
}
.hero h1 {
  color: var(--white);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 900;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}
.hero-divider {
  width: 48px;
  height: 4px;
  background: var(--accent);
  border-radius: 4px;
  margin: 16px 0 20px;
}
.hero-subtitle {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.9);
  line-height: 1.7;
  max-width: 440px;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.hero-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-meta span {
  color: rgba(255,255,255,0.6);
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-meta i { font-size: 0.7rem; }
.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-image-wrap {
  border-radius: var(--radius-lg);
  border: 2px solid rgba(255,255,255,0.25);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: rgba(255,255,255,0.1);
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 4/3;
}
.hero-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17,94,89,0.2), transparent 50%);
}

/* 信任徽章横条 */
.trust-bar {
  background: rgba(255,255,255,0.75);
  border-bottom: 1px solid var(--line);
  padding: 24px 0;
}
.trust-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 140px;
}
.trust-item i {
  font-size: 1.6rem;
  color: var(--primary);
  opacity: 0.85;
}
.trust-item .num {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary);
  font-feature-settings: "tnum";
  line-height: 1.2;
}
.trust-item .label {
  font-size: 0.8rem;
  color: var(--text-light);
  font-weight: 500;
}

/* 三步上手区 */
.steps {
  padding: var(--space-section) 0;
  position: relative;
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-head .sub-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.section-head h2 { margin-bottom: 12px; }
.section-head p { color: var(--text-light); font-size: 0.95rem; }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 8%;
  right: 8%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--accent) 0 8px, transparent 8px 16px);
  opacity: 0.4;
  z-index: 0;
}
.step-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 36px 28px 32px;
  position: relative;
  z-index: 1;
  transition: all 0.2s ease;
}
.step-card:nth-child(2) { transform: translateY(16px); }
.step-card:nth-child(2):hover { transform: translateY(8px); box-shadow: var(--shadow-md); }
.step-card:not(:nth-child(2)):hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.step-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.step-icon i {
  font-size: 1.5rem;
  color: var(--accent);
}
.step-num {
  font-size: 3.5rem;
  font-weight: 900;
  color: #F0EFEC;
  line-height: 1;
  margin-bottom: 12px;
  font-family: var(--font-title);
  letter-spacing: -0.03em;
  transition: color 0.2s ease;
}
.step-card:hover .step-num { color: var(--accent); }
.step-card h3 { margin-bottom: 8px; }
.step-card p { color: var(--text-light); font-size: 0.9rem; line-height: 1.65; }
.step-arrow {
  position: absolute;
  top: 50%;
  right: -28px;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 1.2rem;
  z-index: 2;
}
.steps-grid .cell { position: relative; }

/* 案例证明区 */
.cases {
  background: #EEF1EC;
  padding: var(--space-section) 0;
}
.case-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
.case-row:last-child { margin-bottom: 0; }
.case-text .case-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}
.case-text h3 { font-size: 1.5rem; margin-bottom: 16px; color: var(--text); }
.case-text p { color: var(--text-light); font-size: 0.95rem; margin-bottom: 24px; line-height: 1.75; }
.case-metrics {
  display: flex;
  gap: 32px;
  margin-bottom: 24px;
}
.case-metric {
  text-align: center;
  background: var(--white);
  border-radius: 12px;
  padding: 12px 20px;
  border: 1px solid var(--line);
}
.case-metric .val {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--primary);
  font-feature-settings: "tnum";
}
.case-metric .lbl { font-size: 0.75rem; color: var(--text-light); font-weight: 500; }
.case-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
}
.case-link:hover { gap: 10px; color: var(--primary-dark); }
.case-link i { font-size: 0.8rem; } 
.case-img {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow-md);
}
.case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.case-img:hover img { transform: scale(1.03); }
.case-img .badge-circle {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255,255,255,0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}
.case-img .badge-circle .b-val {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
}
.case-img .badge-circle .b-lbl { font-size: 0.65rem; color: var(--text-light); }
.case-img .play-btn {
  position: absolute;
  bottom: 16px;
  left: 16px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1rem;
  transition: 0.2s ease;
}
.case-img .play-btn:hover { background: var(--accent); }
.case-row.reverse .case-text { order: 2; }
.case-row.reverse .case-img { order: 1; }

/* 最新信息区 */
.latest {
  padding: var(--space-section) 0;
  background: var(--white);
}
.latest-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}
.latest-head h2 { margin-bottom: 0; }
.latest-list {
  max-width: 880px;
  margin: 0 auto;
}
.news-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  transition: all 0.2s ease;
}
.news-row:last-child { border-bottom: none; }
.news-row:hover { transform: translateX(4px); }
.news-cat {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: 4px 10px;
  border-radius: 6px;
  flex-shrink: 0;
}
.news-body { flex: 1; min-width: 0; }
.news-title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  display: block;
  margin-bottom: 4px;
  transition: color 0.2s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-row:hover .news-title { color: var(--primary); }
.news-excerpt {
  font-size: 0.85rem;
  color: var(--text-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-date {
  font-size: 0.8rem;
  color: var(--text-weak);
  flex-shrink: 0;
  font-feature-settings: "tnum";
  transition: color 0.2s ease;
}
.news-row:hover .news-date { color: var(--accent); }
.news-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text-light);
  flex-shrink: 0;
  transition: 0.2s ease;
}
.news-row:hover .news-arrow {
  background: var(--primary);
  color: var(--white);
}
.empty-state {
  text-align: center;
  padding: 60px 20px;
  border-radius: var(--radius-md);
  background: var(--bg);
  border: 1px dashed var(--line);
}
.empty-state .empty-icon {
  font-size: 2.5rem;
  color: var(--text-weak);
  margin-bottom: 16px;
}
.empty-state p { color: var(--text-light); font-size: 0.9rem; }

/* FAQ 区 */
.faq {
  padding: var(--space-section) 0;
  background: var(--bg);
}
.faq-inner {
  max-width: 900px;
  margin: 0 auto;
}
.faq-title-wrap {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 40px;
}
.faq-title-wrap .faq-bar {
  width: 4px;
  height: 40px;
  background: var(--accent);
  border-radius: 4px;
  margin-top: 4px;
  flex-shrink: 0;
}
.faq-list {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
  overflow: hidden;
}
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: none; }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  cursor: pointer;
  transition: background 0.2s ease;
  width: 100%;
  text-align: left;
}
.faq-question:hover { background: rgba(13,148,136,0.03); }
.faq-question:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }
.faq-question h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0;
  flex: 1;
}
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 0.75rem;
  flex-shrink: 0;
  transition: all 0.3s ease;
}
.faq-item.open .faq-icon {
  background: var(--accent);
  color: var(--white);
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 28px;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 28px 24px;
}
.faq-answer p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}

/* CTA 区 */
.cta-section {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  padding: 80px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  pointer-events: none;
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(249,115,22,0.15);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; }
.cta-inner h2 {
  color: var(--white);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: 12px;
}
.cta-inner .cta-sub {
  color: rgba(255,255,255,0.8);
  font-size: 0.95rem;
  margin-bottom: 36px;
}
.cta-trust {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-trust span {
  color: rgba(255,255,255,0.6);
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 页脚 */
.footer {
  background: #12312E;
  padding: 64px 0 0;
  color: rgba(255,255,255,0.7);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-brand .brand-name { color: var(--white); font-size: 1.05rem; }
.footer-brand .brand-icon { background: linear-gradient(135deg, var(--accent), var(--primary)); }
.footer-about {
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
}
.social-row { display: flex; gap: 12px; }
.social-row a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  transition: all 0.2s ease;
}
.social-row a:hover { background: var(--accent); color: var(--white); border-color: var(--accent); }
.footer-title {
  font-family: var(--font-title);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--accent); }
.footer-contact li {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.5;
}
.footer-contact i { color: var(--accent); width: 16px; text-align: center; flex-shrink: 0; margin-top: 3px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}
.footer-bottom .footer-domain { color: rgba(255,255,255,0.35); }

/* 响应式 */
@media (max-width: 1199px) {
  .dock-menu { gap: 2px; }
  .dock-menu a { padding: 6px 10px; font-size: 0.8rem; }
  .case-row { gap: 40px; }
}

@media (max-width: 899px) {
  :root { --space-section: 72px; }
  .dock-menu { display: none; }
  .dock-cta { display: none; }
  .dock-burger { display: flex; }
  .hero { padding: 140px 0 72px; }
  .hero-content { padding-right: 0; margin-bottom: 40px; }
  .hero-visual { order: 2; }
  .steps-grid { grid-template-columns: 1fr; gap: 24px; }
  .steps-grid::before { display: none; }
  .step-card:nth-child(2) { transform: none; }
  .step-arrow { display: none; }
  .case-row { grid-template-columns: 1fr; gap: 32px; }
  .case-row.reverse { grid-template-columns: 1fr; }
  .case-row.reverse .case-text, .case-row.reverse .case-img { order: initial; }
  .case-metrics { flex-wrap: wrap; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 599px) {
  :root { --space-section: 64px; }
  .container { padding: 0 16px; }
  .dock-wrap { width: calc(100% - 16px); top: 8px; }
  .dock-nav { border-radius: 16px; padding: 8px 10px 8px 14px; }
  .hero { min-height: auto; padding: 120px 0 56px; }
  .hero h1 { font-size: 2rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .trust-grid { gap: 16px; }
  .trust-item { min-width: calc(50% - 8px); }
  .trust-item .num { font-size: 1.25rem; }
  .news-row { flex-wrap: wrap; gap: 10px; }
  .news-date { display: none; }
  .news-excerpt { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
  .news-title { white-space: normal; }
  .faq-question { padding: 18px 20px; }
  .faq-answer { padding: 0 20px; }
  .faq-item.open .faq-answer { padding: 0 20px 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section-head { margin-bottom: 40px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #0D9488;
  --primary-dark: #0F766E;
  --primary-deeper: #115E59;
  --accent: #F97316;
  --accent-light: #FFF4EC;
  --bg: #F7F6F2;
  --surface: #FFFFFF;
  --text: #1F2937;
  --text-muted: #6B7280;
  --text-faint: #9CA3AF;
  --line: #E8E6E0;
  --success: #16A34A;
  --warning: #F59E0B;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  --container-w: 1200px;
  --space-section: 96px;
  --font-title: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: var(--primary);
  transition: color 0.2s ease;
}
a:hover {
  color: var(--primary-dark);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
ul, ol {
  list-style: none;
}

/* ===== 容器 ===== */
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 浮动 Dock 导航 ===== */
.dock-nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 860px;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 16px 8px 10px;
  z-index: 999;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, background 0.2s ease;
}
.dock-nav.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deeper) 100%);
  color: #fff;
  font-weight: 900;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}
.brand-name {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text);
  white-space: nowrap;
}
.dock-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 auto;
}
.dock-menu a {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.2s ease;
}
.dock-menu a:hover {
  color: var(--primary);
  background: rgba(13, 148, 136, 0.06);
}
.dock-menu a.active {
  font-weight: 700;
  color: var(--primary-deeper);
  position: relative;
}
.dock-menu a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}
.dock-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.dock-search {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all 0.2s ease;
}
.dock-search:hover {
  color: var(--primary);
  background: rgba(13, 148, 136, 0.08);
}
.dock-cta {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  transition: all 0.2s ease;
}
.dock-cta:hover {
  background: #EA6A0E;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  color: #fff;
}
.dock-burger {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 1.1rem;
}

/* ===== 页面标题 Hero ===== */
.page-hero {
  position: relative;
  padding: 180px 0 96px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deeper) 100%);
  color: #fff;
  overflow: hidden;
}
.page-hero .hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
}
.page-hero .hero-glow {
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.14;
  pointer-events: none;
}
.page-hero .container {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
}
.breadcrumb a:hover {
  color: #fff;
}
.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.4);
}
.page-hero h1 {
  font-family: var(--font-title);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.page-hero .hero-line {
  width: 48px;
  height: 4px;
  border-radius: 4px;
  background: var(--accent);
  margin-bottom: 22px;
}
.page-hero .lead {
  max-width: 640px;
  font-size: 1.125rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
}

/* ===== 图文内容区块 ===== */
.section-block {
  padding: var(--space-section) 0;
  background: var(--bg);
}
.section-block .block-figure {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 28px;
}
.section-block .block-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}
.section-block .block-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(17, 94, 89, 0.02) 0%, rgba(17, 94, 89, 0.08) 100%);
  pointer-events: none;
}
.section-block .figure-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--primary-dark);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  z-index: 2;
}
.section-block .block-content {
  padding: 16px 0;
}
.block-num {
  display: block;
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--accent);
  font-feature-settings: "tnum";
  margin-bottom: 14px;
  opacity: 0.85;
}
.section-block h2 {
  font-family: var(--font-title);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 16px;
  position: relative;
  padding-left: 18px;
}
.section-block h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: var(--accent);
}
.section-block .block-content p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1em;
  text-align: left;
}
.section-block .block-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid rgba(249, 115, 22, 0.2);
}
.tag.alt {
  background: rgba(13, 148, 136, 0.08);
  color: var(--primary-dark);
  border-color: rgba(13, 148, 136, 0.2);
}

/* 交替区块背景 */
.section-block.alt-bg {
  background: #EEF1EC;
}
.section-block.alt-bg .block-figure {
  box-shadow: var(--shadow-lg);
}

/* ===== 延伸链接区 ===== */
.next-links {
  padding: 64px 0 96px;
  background: var(--bg);
}
.next-links .sec-title {
  text-align: center;
  margin-bottom: 40px;
}
.next-links .sec-title h2 {
  font-family: var(--font-title);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}
.next-links .sec-title p {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.next-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.next-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--primary);
}
.next-card .icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
  transition: transform 0.2s ease;
}
.next-card:hover .icon-wrap {
  transform: translateY(-3px) scale(1.04);
}
.next-card .card-title {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.next-card .card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.next-card .btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 700;
  transition: all 0.2s ease;
}
.next-card .btn-solid {
  background: var(--accent);
  color: #fff;
}
.next-card .btn-solid:hover {
  background: #EA6A0E;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: #fff;
}
.next-card .btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.next-card .btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== 页脚 ===== */
.footer {
  background: #115E59;
  color: rgba(255, 255, 255, 0.8);
  padding-top: 64px;
  font-size: 0.9rem;
}
.footer .footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.9fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer .brand-logo .brand-name {
  color: #fff;
}
.footer .brand-logo .brand-icon {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}
.footer-about {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.85rem;
  line-height: 1.7;
  margin-top: 16px;
  margin-bottom: 18px;
}
.social-row {
  display: flex;
  gap: 10px;
}
.social-row a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  transition: all 0.2s ease;
}
.social-row a:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}
.footer-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.footer-links li {
  margin-bottom: 8px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.86rem;
  transition: all 0.2s ease;
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.86rem;
  margin-bottom: 10px;
}
.footer-contact i {
  color: var(--accent);
  font-size: 0.9rem;
  margin-top: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.55);
}
.footer-domain {
  font-family: "SFMono-Regular", Consolas, monospace;
}

/* ===== 焦点状态 ===== */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.dock-cta:focus-visible,
.next-card .btn:focus-visible {
  outline-color: var(--accent);
}

/* ===== 响应式 ===== */
@media (max-width: 1199px) {
  .page-hero {
    padding: 160px 0 80px;
  }
}

@media (max-width: 899px) {
  .dock-nav {
    max-width: calc(100% - 32px);
  }
  .dock-menu {
    gap: 2px;
  }
  .dock-menu a {
    padding: 6px 10px;
    font-size: 0.82rem;
  }
  .footer .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .section-block {
    --space-section: 64px;
  }
}

@media (max-width: 767px) {
  .page-hero {
    padding: 140px 0 56px;
  }
  .page-hero h1 {
    font-size: 2.2rem;
  }
  .section-block .block-content {
    padding: 12px 0 0;
  }
  .block-num {
    font-size: 2.8rem;
  }
}

@media (max-width: 599px) {
  .dock-nav {
    top: 8px;
    border-radius: 16px;
    padding: 6px 8px;
    max-width: calc(100% - 16px);
  }
  .brand-name {
    font-size: 0.95rem;
  }
  .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
    border-radius: 8px;
  }
  .dock-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin: 0;
  }
  .dock-menu.open {
    display: flex;
  }
  .dock-menu a {
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: 12px;
  }
  .dock-menu a.active::after {
    display: none;
  }
  .dock-menu a.active {
    background: rgba(13, 148, 136, 0.08);
  }
  .dock-search {
    display: none;
  }
  .dock-cta {
    padding: 7px 14px;
    font-size: 0.8rem;
  }
  .dock-burger {
    display: flex;
  }
  .container {
    padding: 0 16px;
  }
  .page-hero {
    padding: 130px 0 48px;
  }
  .page-hero h1 {
    font-size: 2rem;
  }
  .page-hero .lead {
    font-size: 1rem;
  }
  .section-block {
    --space-section: 56px;
  }
  .section-block h2 {
    font-size: 1.5rem;
  }
  .footer .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .next-links {
    padding: 48px 0 64px;
  }
  .next-links .row {
    gap: 16px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }
}

@media (max-width: 360px) {
  .brand-name {
    font-size: 0.88rem;
  }
  .dock-cta {
    padding: 6px 12px;
    font-size: 0.78rem;
  }
}

/* roulang page: category2 */
:root {
  --primary: #0D9488;
  --primary-dark: #0F766E;
  --primary-deeper: #115E59;
  --accent: #F97316;
  --accent-soft: #FFF4EC;
  --bg: #F7F6F2;
  --surface: #FFFFFF;
  --text: #1F2937;
  --text-muted: #6B7280;
  --text-faint: #9CA3AF;
  --line: #E8E6E0;
  --success: #16A34A;
  --warning: #F59E0B;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  --font-head: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 1rem;
  text-align: left;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}

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

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 24px;
}

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

/* ========== Dock Nav ========== */
.dock-nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(860px, calc(100% - 24px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 16px 10px 10px;
  z-index: 999;
  transition: box-shadow .2s ease, background .2s ease;
}
.dock-nav.scrolled {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: var(--shadow-md);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deeper));
  color: #fff;
  font-family: var(--font-head);
  font-size: .9rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: .02em;
}
.brand-name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text);
  white-space: nowrap;
}

.dock-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.dock-menu a {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  position: relative;
}
.dock-menu a:hover {
  color: var(--primary);
  background: rgba(13, 148, 136, 0.06);
}
.dock-menu a.active {
  font-weight: 700;
  color: var(--text);
}
.dock-menu a.active::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 2px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.dock-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.dock-search {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: .9rem;
  transition: color .2s ease, background .2s ease;
}
.dock-search:hover {
  color: var(--accent);
  background: var(--accent-soft);
}
.dock-cta {
  padding: 9px 20px;
  background: var(--accent);
  color: #fff;
  font-size: .88rem;
  font-weight: 700;
  border-radius: 999px;
  white-space: nowrap;
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.dock-cta:hover {
  background: #EA6A0E;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(249, 115, 22, .3);
}
.dock-burger {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  color: var(--text);
  font-size: 1.15rem;
  align-items: center;
  justify-content: center;
}
.dock-burger:hover {
  background: rgba(13, 148, 136, .08);
}

/* 移动端导航抽屉 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 76px;
  left: 12px;
  right: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  padding: 20px;
  z-index: 998;
}
.mobile-menu.open {
  display: block;
}
.mobile-menu a {
  display: block;
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid #f4f2ed;
}
.mobile-menu a:last-child {
  border-bottom: none;
}
.mobile-menu a:hover {
  background: var(--accent-soft);
  color: var(--primary);
}
.mobile-menu a.active {
  color: var(--primary);
  font-weight: 700;
}

/* ========== 分类页顶部 Hero 简洁横幅 ========== */
.page-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deeper) 70%);
  padding: 140px 0 72px;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(249, 115, 22, .14);
  top: -140px;
  right: -100px;
}
.page-banner .container {
  position: relative;
  z-index: 1;
}
.page-banner .crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: rgba(255, 255, 255, .7);
  margin-bottom: 20px;
}
.page-banner .crumb a {
  color: rgba(255, 255, 255, .8);
}
.page-banner .crumb a:hover {
  color: #fff;
}
.page-banner .crumb i {
  font-size: .7rem;
}
.page-banner h1 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: .01em;
}
.page-banner .lead {
  color: rgba(255, 255, 255, .85);
  font-size: 1.05rem;
  max-width: 600px;
  line-height: 1.7;
}

/* ========== 分类介绍区块 ========== */
.category-main {
  padding: 80px 0 40px;
}
.split-block {
  display: flex;
  align-items: center;
  gap: 64px;
  padding: 56px 0;
}
.split-block:nth-child(even) .split-media {
  order: -1;
}
.split-text {
  flex: 1;
  min-width: 0;
}
.split-text .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .8rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.split-text .tag i {
  font-size: .75rem;
}
.split-text h2 {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 20px;
}
.split-text p {
  color: var(--text-muted);
  font-size: .98rem;
  line-height: 1.8;
  margin-bottom: 16px;
}
.split-text p:last-child {
  margin-bottom: 0;
}
.split-text .badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.split-media {
  flex: 1;
  min-width: 0;
}
.split-media .media-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, transform .2s ease;
}
.split-media .media-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.split-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ========== 数据徽章 ========== */
.badge-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 18px;
  box-shadow: var(--shadow-sm);
}
.badge-chip .num {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--primary);
  font-feature-settings: "tnum";
  line-height: 1;
}
.badge-chip .label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* ========== 延伸链接区 ========== */
.extension-links {
  padding: 40px 0 100px;
}
.extension-box {
  background: linear-gradient(120deg, #0F766E 0%, #115E59 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.extension-box::before {
  content: '';
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(249, 115, 22, .1);
  bottom: -120px;
  left: -80px;
}
.extension-box h2 {
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  color: #fff;
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.extension-box p {
  color: rgba(255, 255, 255, .78);
  font-size: .95rem;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}
.extension-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.2;
  transition: all .2s ease;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 16px rgba(249, 115, 22, .3);
}
.btn-primary:hover {
  background: #EA6A0E;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(249, 115, 22, .35);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline-light {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, .6);
  color: #fff;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, .12);
  border-color: #fff;
  color: #fff;
}

/* ========== 页脚 ========== */
.footer {
  background: #12312E;
  color: rgba(255, 255, 255, .8);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand-icon {
  background: linear-gradient(135deg, #14b8a6, #0D9488);
}
.footer-brand .brand-name {
  color: #fff;
}
.footer-about {
  font-size: .88rem;
  color: rgba(255, 255, 255, .6);
  line-height: 1.7;
  margin: 16px 0 20px;
  max-width: 260px;
}
.social-row {
  display: flex;
  gap: 10px;
}
.social-row a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, .6);
  font-size: .9rem;
  transition: all .2s ease;
}
.social-row a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.footer-title {
  font-family: var(--font-head);
  font-size: .95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: .03em;
}
.footer-links li, .footer-contact li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: .88rem;
  color: rgba(255, 255, 255, .55);
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-contact li {
  font-size: .85rem;
  color: rgba(255, 255, 255, .55);
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact i {
  width: 16px;
  color: rgba(255, 255, 255, .38);
  font-size: .8rem;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: .8rem;
  color: rgba(255, 255, 255, .45);
}
.footer-domain {
  font-feature-settings: "tnum";
  letter-spacing: .03em;
}

/* ========== 响应式断点 ========== */
@media (max-width: 1199px) {
  .dock-nav {
    width: min(760px, calc(100% - 24px));
  }
  .dock-menu a {
    padding: 8px 12px;
    font-size: .88rem;
  }
  .split-block {
    gap: 36px;
  }
}

@media (max-width: 899px) {
  .container {
    padding: 0 20px;
  }
  .split-block {
    flex-direction: column;
  }
  .split-block:nth-child(even) .split-media {
    order: 0;
  }
  .split-media, .split-text {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 639px) {
  .container {
    padding: 0 16px;
  }
  .dock-nav {
    top: 8px;
    border-radius: 16px;
    padding: 8px 10px;
    width: calc(100% - 16px);
  }
  .dock-menu, .dock-search {
    display: none;
  }
  .dock-cta {
    display: inline-flex;
    padding: 8px 16px;
    font-size: .82rem;
  }
  .dock-burger {
    display: inline-flex;
  }
  .brand-name {
    font-size: .95rem;
  }
  .brand-icon {
    width: 32px;
    height: 32px;
    font-size: .8rem;
    border-radius: 10px;
  }
  .page-banner {
    padding: 120px 0 48px;
  }
  .page-banner h1 {
    font-size: 1.7rem;
  }
  .page-banner .lead {
    font-size: .95rem;
  }
  .category-main {
    padding: 48px 0 24px;
  }
  .split-block {
    padding: 36px 0;
    gap: 28px;
  }
  .split-text h2 {
    font-size: 1.3rem;
  }
  .split-text p {
    font-size: .92rem;
  }
  .extension-links {
    padding: 24px 0 64px;
  }
  .extension-box {
    padding: 40px 20px;
    border-radius: 16px;
  }
  .extension-box h2 {
    font-size: 1.25rem;
  }
  .extension-btns .btn {
    width: 100%;
    justify-content: center;
  }
  .btn-primary, .btn-outline-light {
    padding: 13px 16px;
  }
  .footer {
    padding-top: 48px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
}

/* roulang page: article */
:root {
  --primary: #0D9488;
  --primary-dark: #0F766E;
  --primary-deeper: #115E59;
  --accent: #F97316;
  --accent-hover: #EA6A0E;
  --accent-light: #FFF4EC;
  --bg: #F7F6F2;
  --surface: #FFFFFF;
  --text: #1F2937;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --line: #E8E6E0;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  --font-title: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: all .2s ease;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(249, 115, 22, .25); }
.btn-primary:hover, .btn-primary:focus { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(249, 115, 22, .32); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-secondary:hover, .btn-secondary:focus { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-secondary:active { transform: translateY(0); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
}

/* Dock 导航 */
.dock-nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 860px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 18px;
  box-shadow: var(--shadow-sm);
  transition: background .3s ease, box-shadow .3s ease;
}
.dock-nav.scrolled { background: rgba(255, 255, 255, .97); box-shadow: var(--shadow-md); }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deeper));
  color: #fff;
  font-weight: 900;
  font-size: 13px;
  letter-spacing: -1px;
}
.brand-name { font-family: var(--font-title); font-weight: 800; font-size: 16px; color: var(--text); white-space: nowrap; }
.dock-menu { display: flex; align-items: center; gap: 4px; }
.dock-menu a {
  position: relative;
  padding: 7px 14px;
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all .2s ease;
}
.dock-menu a:hover { color: var(--primary-deeper); background: rgba(13, 148, 136, .06); }
.dock-menu a.active { color: var(--text); font-weight: 700; }
.dock-menu a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 2px;
  width: 18px;
  height: 3px;
  border-radius: 99px;
  background: var(--accent);
}
.dock-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.dock-search {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all .2s ease;
}
.dock-search:hover { background: var(--bg); color: var(--primary); }
.dock-search:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.dock-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  padding: 9px 20px;
  transition: all .2s ease;
}
.dock-cta:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(249, 115, 22, .3); }
.dock-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.dock-burger {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: all .2s ease;
}
.dock-burger:hover { background: var(--bg); }
.dock-burger:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.mobile-drawer {
  display: none;
  position: fixed;
  top: 70px;
  left: 12px;
  right: 12px;
  z-index: 999;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 14px;
  flex-direction: column;
  gap: 4px;
}
.mobile-drawer.open { display: flex; }
.mobile-drawer a {
  padding: 12px 16px;
  border-radius: 10px;
  font-weight: 600;
  color: var(--text);
  font-size: 15px;
  transition: background .2s, color .2s;
}
.mobile-drawer a:hover { background: var(--accent-light); color: var(--accent); }
.mobile-drawer a.active { color: var(--accent); background: var(--accent-light); }

/* 面包屑 */
.breadcrumb-wrap { background: var(--bg); padding: 100px 0 8px; }
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb i { font-size: 10px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-secondary); transition: color .2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .current {
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-muted);
}

/* 文章头部 */
.article-head {
  padding: 40px 0 20px;
  background: linear-gradient(180deg, #EFF6F5 0%, var(--bg) 100%);
}
.article-cat {
  display: inline-flex;
  align-items: center;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
}
.article-head h1 {
  font-family: var(--font-title);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 900;
  line-height: 1.28;
  margin: 16px 0 18px;
  color: var(--text);
  letter-spacing: -0.02em;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  padding: 0 0 20px;
  border-bottom: 2px solid var(--line);
  color: var(--text-muted);
  font-size: 14px;
}
.article-meta i { color: var(--primary); margin-right: 4px; }

/* 正文区域 */
.article-body-wrap { padding: 40px 0 60px; }
.article-content { font-size: 1.0625rem; line-height: 1.85; color: var(--text); }
.article-content p { margin: 0 0 1.35em; }
.article-content h2 {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  margin: 1.6em 0 .6em;
  color: var(--primary-deeper);
  line-height: 1.35;
}
.article-content h3 {
  font-family: var(--font-title);
  font-size: 1.2rem;
  font-weight: 700;
  margin: 1.4em 0 .5em;
  color: var(--primary-dark);
}
.article-content h4 { font-size: 1.05rem; font-weight: 700; margin: 1.2em 0 .4em; }
.article-content ul, .article-content ol { margin: 0 0 1.35em; padding-left: 1.5em; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: .4em; }
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--accent-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 24px;
  margin: 1.5em 0;
  color: var(--text-secondary);
}
.article-content blockquote p { margin: 0 0 8px; }
.article-content blockquote p:last-child { margin: 0; }
.article-content img { border-radius: var(--radius-md); margin: 1.5em 0; }
.article-content figure { margin: 1.5em 0; }
.article-content figure img { margin: 0; }
.article-content figcaption { text-align: center; font-size: 13px; color: var(--text-muted); margin-top: 8px; }
.article-content a { color: var(--primary); text-decoration: underline; transition: color .2s; }
.article-content a:hover { color: var(--accent); }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.5em 0; font-size: 14px; }
.article-content th, .article-content td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.article-content th { background: var(--bg); font-weight: 700; }
.article-content code { background: var(--bg); padding: 2px 8px; border-radius: 6px; font-size: 90%; border: 1px solid var(--line); }
.article-content pre { background: #1F2937; color: #E5E7EB; padding: 20px; border-radius: var(--radius-md); overflow-x: auto; margin: 1.5em 0; }
.article-content pre code { background: none; border: none; padding: 0; color: inherit; }

/* 空状态 */
.not-found {
  background: #fff;
  border: 2px dashed var(--line);
  border-radius: var(--radius-lg);
  padding: 60px 30px;
  text-align: center;
}
.not-found i { font-size: 42px; color: var(--text-muted); margin-bottom: 16px; }
.not-found h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 8px; color: var(--text); }
.not-found p { color: var(--text-secondary); margin-bottom: 24px; }

/* 文章底部标签与分享 */
.article-footer-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-item {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  color: var(--text-secondary);
  transition: all .2s;
}
.tag-item:hover { border-color: var(--primary); color: var(--primary); }
.share-row { display: flex; align-items: center; gap: 6px; color: var(--text-secondary); font-size: 14px; }
.share-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all .2s ease;
}
.share-btn:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.share-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* 相关推荐 */
.related-wrap { background: #EEF1EC; padding: 64px 0; }
.related-wrap h2 {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 28px;
}
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  display: flex;
  align-items: stretch;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all .25s ease;
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.related-card img { width: 140px; object-fit: cover; flex-shrink: 0; }
.related-info {
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}
.related-info h3 { font-size: 16px; font-weight: 700; margin: 0; line-height: 1.4; }
.related-date { font-size: 13px; color: var(--text-muted); display: inline-flex; align-items: center; gap: 4px; }
.back-row { margin-top: 32px; text-align: center; }

/* 页脚 */
.footer { background: #12312E; color: rgba(255, 255, 255, .75); padding: 64px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1.1fr; gap: 40px; padding-bottom: 40px; }
.footer .brand-logo { margin-bottom: 14px; }
.footer .brand-icon { background: rgba(255, 255, 255, .12); color: #fff; }
.footer .brand-name { color: #fff; font-size: 17px; }
.footer-about {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .65);
  margin-bottom: 18px;
  max-width: 300px;
}
.social-row { display: flex; gap: 10px; }
.social-row a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, .7);
  transition: all .2s ease;
}
.social-row a:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 14px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255, 255, 255, .65); transition: all .2s ease; }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact li { font-size: 14px; color: rgba(255, 255, 255, .65); display: flex; gap: 10px; align-items: flex-start; }
.footer-contact i { color: var(--accent); margin-top: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
}
.footer-domain { font-family: monospace; letter-spacing: .3px; }

/* 响应式 */
@media (max-width: 899px) {
  .dock-menu { display: none; }
  .dock-burger { display: inline-flex; }
  .dock-nav { width: calc(100% - 24px); top: 12px; border-radius: 999px; padding: 8px 14px; }
  .dock-search { display: none; }
  .breadcrumb-wrap { padding-top: 84px; }
  .article-head { padding: 32px 0 16px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 639px) {
  .dock-cta { padding: 8px 16px; font-size: 13px; }
  .brand-name { font-size: 15px; }
  .container { padding: 0 16px; }
  .article-head h1 { font-size: 1.6rem; }
  .article-meta { gap: 12px; font-size: 13px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card img { width: 110px; }
  .article-footer-actions { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .btn { width: 100%; }
}