/* roulang page: index */
:root {
  --primary: #3E6D8C;
  --primary-dark: #33596F;
  --primary-deep: #295069;
  --primary-light: #E8F1F6;
  --accent: #D9A65F;
  --accent-dark: #C78A43;
  --accent-light: #F7ECDC;
  --bg: #F4F8FB;
  --card-bg: #FFFFFF;
  --text: #24384A;
  --text-secondary: #5B7083;
  --border: rgba(37, 58, 78, .08);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(37,58,78,.06);
  --shadow-lg: 0 16px 32px rgba(37,58,78,.10);
  --space-section: 88px;
  --container-max: 1200px;
  --font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { transition: all .25s ease; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  width: 100%;
}

.section { padding: var(--space-section) 0; }

.section-header {
  margin-bottom: 44px;
  position: relative;
}

.section-header .tag-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
  letter-spacing: .5px;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.section-header .sub-text {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.8;
}

/* ============ 顶部导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(145deg, var(--primary), var(--primary-dark));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(62,109,140,.3);
}

.logo-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 1px;
  line-height: 1.2;
}

.logo-text span {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 34px;
  list-style: none;
}

.nav-menu a {
  text-decoration: none;
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 6px 2px;
  transition: all .25s ease;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform .3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.nav-cta {
  margin-left: 12px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  justify-content: center;
  align-items: center;
  transition: all .25s ease;
}

.nav-toggle:hover {
  background: var(--primary-light);
}

.nav-toggle span {
  position: relative;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s ease;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s ease;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { top: 0; transform: rotate(45deg); background: var(--primary); }
.nav-toggle.open span::after { top: 0; transform: rotate(-45deg); background: var(--primary); }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
  line-height: 1.4;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(62,109,140,.25);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(62,109,140,.35);
  color: #fff;
}
.btn-primary:focus-visible {
  outline: 3px solid rgba(62,109,140,.4);
  outline-offset: 2px;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(62,109,140,.2);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  box-shadow: none;
}
.btn-outline:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  color: var(--primary-dark);
}
.btn-outline:focus-visible {
  outline: 3px solid rgba(62,109,140,.4);
  outline-offset: 2px;
}
.btn-outline:active {
  transform: translateY(0);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(217,166,95,.3);
}
.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(217,166,95,.4);
  color: #fff;
}
.btn-accent:focus-visible {
  outline: 3px solid rgba(217,166,95,.4);
  outline-offset: 2px;
}
.btn-accent:active {
  transform: translateY(0);
}

.btn-lg {
  padding: 15px 38px;
  font-size: 16px;
}

.btn-sm {
  padding: 8px 22px;
  font-size: 14px;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  padding: 150px 0 90px;
  background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
  margin-top: 72px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(244,248,251,.88) 55%, rgba(244,248,251,.97) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-top-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 100px;
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero h1 {
  font-size: 44px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero h1 .highlight {
  color: var(--primary);
  position: relative;
}

.hero .hero-desc {
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 28px;
  max-width: 600px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 22px;
}

.hero-group-note {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 14px 22px;
  background: rgba(255,255,255,.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(4px);
  margin-top: 8px;
}

.group-avatars {
  display: flex;
  align-items: center;
}

.group-avatars i {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: var(--primary-light);
  margin-left: -8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary);
  font-style: normal;
  font-weight: 600;
}
.group-avatars i:first-child { margin-left: 0; }
.group-avatars i:nth-child(2) { background: var(--accent-light); color: var(--accent-dark); }
.group-avatars i:nth-child(3) { background: #DDF0E5; color: #3E8C6D; }

.hero-group-note .note-text {
  font-size: 14px;
  color: var(--text);
}

.hero-group-note .note-text b {
  color: var(--accent-dark);
  font-size: 18px;
  font-weight: 700;
}

.hero-stats-mini {
  display: flex;
  gap: 28px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.hero-stats-mini .mini-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.mini-item .num {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
  font-feature-settings: 'tnum';
}

.mini-item .label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ============ 指标看板 ============ */
.stats-section {
  padding: var(--space-section) 0;
  background: var(--bg);
}

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

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all .3s ease;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  opacity: 0;
  transition: opacity .3s ease;
}

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

.stat-card:hover::before {
  opacity: 1;
}

.stat-card .stat-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  color: var(--primary);
}

.stat-card .stat-icon svg {
  width: 24px;
  height: 24px;
  stroke-width: 1.8;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.stat-card .stat-number {
  font-size: 42px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
  font-feature-settings: 'tnum';
  letter-spacing: -1px;
}

.stat-card .stat-suffix {
  font-size: 20px;
  font-weight: 600;
  color: var(--accent);
  margin-left: 2px;
}

.stat-card .stat-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.stat-card .stat-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============ 服务矩阵 ============ */
.services-section {
  padding: var(--space-section) 0;
  background: var(--card-bg);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px 28px;
}

.service-card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: all .3s ease;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 34px;
  width: 60px;
  height: 3px;
  border-radius: 0 0 4px 4px;
  background: var(--primary);
  transition: all .3s ease;
}

.service-card:nth-child(2)::before,
.service-card:nth-child(4)::before {
  background: var(--accent);
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(62,109,140,.2);
  background: #fff;
}

.service-card:hover::before {
  width: 100px;
  left: 20px;
}

.service-card .service-no {
  position: absolute;
  top: 30px;
  right: 30px;
  font-size: 42px;
  font-weight: 700;
  color: rgba(37,58,78,.06);
  line-height: 1;
  letter-spacing: -2px;
  transition: all .3s ease;
}

.service-card:hover .service-no {
  color: rgba(62,109,140,.12);
}

.service-card .service-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: var(--primary-light);
  color: var(--primary);
}

.service-card:nth-child(2) .service-icon,
.service-card:nth-child(4) .service-icon {
  background: var(--accent-light);
  color: var(--accent-dark);
}

.service-card .service-icon svg {
  width: 26px;
  height: 26px;
  stroke-width: 1.8;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
}

.service-card .service-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 18px;
}

.service-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  background: var(--primary-light);
  color: var(--primary);
  letter-spacing: .3px;
}

.service-card:nth-child(2) .tag,
.service-card:nth-child(4) .tag {
  background: var(--accent-light);
  color: var(--accent-dark);
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}

.service-link:hover {
  color: var(--accent-dark);
  gap: 10px;
}

.service-link svg {
  width: 16px;
  height: 16px;
  transition: transform .25s ease;
}

.service-link:hover svg {
  transform: translateX(4px);
}

/* ============ 结果对比 ============ */
.compare-section {
  padding: var(--space-section) 0;
  background: var(--bg);
}

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

.compare-column {
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  border: 1px solid var(--border);
}

.compare-column.old-way {
  background: #EEF1F4;
}

.compare-column.new-way {
  background: var(--primary-light);
  border-color: rgba(62,109,140,.15);
}

.compare-column h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.compare-column.old-way h3 { color: var(--text-secondary); }
.compare-column.new-way h3 { color: var(--primary); }

.compare-head-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.old-way .compare-head-icon {
  background: #E3E7EB;
  color: var(--text-secondary);
}

.new-way .compare-head-icon {
  background: var(--primary);
  color: #fff;
}

.compare-head-icon svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.compare-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  min-height: 48px;
  font-size: 15px;
  line-height: 1.7;
  border-bottom: 1px solid var(--border);
}

.compare-list li:last-child {
  border-bottom: none;
}

.compare-list li .compare-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.compare-list li .compare-icon svg {
  width: 14px;
  height: 14px;
  stroke-width: 2.5;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.old-way .compare-icon {
  background: #F4D7D7;
  color: #C05252;
}

.new-way .compare-icon {
  background: #D5EBDF;
  color: #3E8C6D;
}

.compare-footnote {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.compare-footnote a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.compare-footnote a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

/* ============ 客户证言 ============ */
.testimonials-section {
  padding: var(--space-section) 0;
  background: var(--card-bg);
}

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

.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  position: relative;
  transition: all .3s ease;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(62,109,140,.15);
}

.testimonial-card .quote-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--accent-dark);
  font-size: 20px;
  line-height: 1;
  font-family: Georgia, serif;
  font-weight: 700;
}

.testimonial-card blockquote {
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin: 0 0 20px;
  border: none;
}

.testimonial-card .testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.testimonial-author .avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  flex-shrink: 0;
}

.testimonial-author .name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.testimonial-author .meta {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ============ 资讯栏 ============ */
.news-section {
  padding: var(--space-section) 0;
  background: var(--bg);
}

.news-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.news-list-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: all .3s ease;
}

.news-list-item:first-child {
  padding-top: 0;
}

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

.news-list-item .news-thumb {
  width: 96px;
  height: 72px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--primary-light);
}

.news-content {
  flex: 1;
}

.news-date {
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: .5px;
  display: block;
  margin-bottom: 4px;
}

.news-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  text-decoration: none;
  display: block;
  transition: color .2s ease;
}

.news-title:hover {
  color: var(--primary);
}

.news-summary {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-sidebar {
  position: sticky;
  top: 100px;
  align-self: flex-start;
}

.sidebar-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 24px;
}

.sidebar-card .sidebar-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

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

.sidebar-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.sidebar-card .sidebar-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.sidebar-card .sidebar-link {
  font-size: 14px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

.popular-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.popular-tags .tag {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 12px;
  padding: 5px 14px;
  cursor: default;
}

.popular-tags .tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

/* ============ FAQ ============ */
.faq-section {
  padding: var(--space-section) 0;
  background: var(--card-bg);
}

.faq-layout {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all .3s ease;
}

.faq-item:hover {
  border-color: rgba(62,109,140,.2);
  box-shadow: var(--shadow-sm);
}

.faq-item.is-active {
  border-color: rgba(62,109,140,.3);
  box-shadow: var(--shadow-sm);
}

.faq-item .faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  background: transparent;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  font-family: var(--font-stack);
  transition: all .2s ease;
}

.faq-item .faq-question:hover {
  color: var(--primary);
}

.faq-item .faq-question:focus-visible {
  outline: 3px solid rgba(62,109,140,.4);
  outline-offset: -2px;
}

.faq-item .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all .3s ease;
}

.faq-item .faq-icon svg {
  width: 14px;
  height: 14px;
  stroke-width: 2.5;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .3s ease;
}

.faq-item.is-active .faq-icon {
  background: var(--primary);
}

.faq-item.is-active .faq-icon svg {
  transform: rotate(45deg);
  stroke: #fff;
}

.faq-item .faq-answer {
  padding: 0 26px;
  max-height: 0;
  overflow: hidden;
  transition: all .3s ease;
}

.faq-item.is-active .faq-answer {
  max-height: 400px;
  padding: 0 26px 22px;
}

.faq-item .faq-answer p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ============ 转化表单 ============ */
.lead-section {
  padding: var(--space-section) 0;
  background: var(--bg);
}

.lead-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: center;
}

.lead-info h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
  line-height: 1.3;
  letter-spacing: -0.3px;
}

.lead-info p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 28px;
}

.lead-info-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  font-size: 15px;
  color: var(--text);
}

.lead-info-item .lead-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.lead-info-item .lead-icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.8;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.lead-info-item .lead-text {
  flex: 1;
}

.lead-info-item .lead-text small {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
}

.lead-form-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px 38px;
  border: 1px solid var(--border);
}

.lead-form-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.lead-form-card .form-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 26px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 16px;
  font-size: 15px;
  font-family: var(--font-stack);
  background: var(--bg);
  color: var(--text);
  transition: all .25s ease;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(62,109,140,.15);
  background: #fff;
}

textarea.form-control {
  height: auto;
  min-height: 100px;
  padding: 12px 16px;
  resize: vertical;
}

.form-control::placeholder {
  color: #A3B4C0;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235B7083' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-submit-btn {
  width: 100%;
  margin-top: 8px;
}

.form-note {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 14px;
}

/* ============ CTA 横条 ============ */
.cta-strip {
  padding: 56px 0;
  background: var(--primary);
  position: relative;
  overflow: hidden;
}

.cta-strip::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -30px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255,255,255,.07);
}

.cta-strip::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: 20%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,.04);
}

.cta-strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  z-index: 2;
}

.cta-strip h2 {
  color: #fff;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 6px;
}

.cta-strip p {
  color: rgba(255,255,255,.85);
  font-size: 15px;
  margin: 0;
}

.cta-strip .btn {
  flex-shrink: 0;
}

/* ============ 页脚 ============ */
.site-footer {
  background: #1E2E3B;
  padding: 70px 0 0;
  color: rgba(255,255,255,.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo-text {
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand .logo-text span {
  color: var(--accent);
}

.footer-brand .footer-desc {
  font-size: 14px;
  line-height: 1.9;
  margin-top: 14px;
  color: rgba(255,255,255,.55);
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: .5px;
}

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

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

.footer-col ul a {
  color: rgba(255,255,255,.55);
  text-decoration: none;
  font-size: 14px;
  transition: all .2s ease;
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  margin-bottom: 14px;
  color: rgba(255,255,255,.55);
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke-width: 1.8;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-top: 4px;
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.35);
}

.footer-bottom a {
  color: rgba(255,255,255,.45);
  text-decoration: none;
}

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

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all .3s ease;
  cursor: pointer;
  border: none;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

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

.back-to-top svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.5;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ============ 响应式 ============ */
@media screen and (max-width: 1024px) {
  :root { --space-section: 72px; }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

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

@media screen and (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 6px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    display: block;
    padding: 12px 0;
    font-size: 16px;
  }

  .nav-menu a::after {
    display: none;
  }

  .nav-cta {
    margin-left: 0;
    width: 100%;
    margin-top: 12px;
  }

  .nav-cta .btn {
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: 540px;
    padding: 120px 0 60px;
  }

  .hero h1 { font-size: 32px; }
  .hero-desc { font-size: 15px; }

  .hero-stats-mini {
    gap: 20px;
  }

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

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

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

  .news-layout {
    grid-template-columns: 1fr;
  }

  .news-list-item .news-thumb {
    width: 80px;
    height: 60px;
  }

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

  .cta-strip-inner {
    flex-direction: column;
    text-align: center;
  }

  .section-header h2, .lead-info h2 {
    font-size: 26px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
  }
}

@media screen and (max-width: 520px) {
  :root { --space-section: 56px; }
  
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .stat-card {
    padding: 24px 16px;
  }

  .stat-card .stat-number {
    font-size: 32px;
  }

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

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

  .hero-cta-group .btn {
    width: 100%;
  }

  .hero-stats-mini {
    justify-content: space-between;
  }
  
  .mini-item .num {
    font-size: 20px;
  }

  .service-card {
    padding: 28px 20px;
  }

  .service-no {
    font-size: 32px !important;
  }

  .compare-column {
    padding: 28px 20px;
  }

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

  .news-list-item {
    flex-direction: column;
    gap: 10px;
  }

  .news-list-item .news-thumb {
    width: 100%;
    height: auto;
    max-height: 140px;
  }

  .lead-form-card {
    padding: 28px 20px;
  }

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

  .faq-item .faq-question {
    padding: 16px 18px;
    font-size: 15px;
  }

  .faq-item .faq-answer {
    padding: 0 18px;
  }
  .faq-item.is-active .faq-answer {
    padding: 0 18px 18px;
  }
}

/* 图片通用处理 */
.img-radius {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.img-caption {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 8px;
  line-height: 1.6;
}

/* roulang page: category1 */
:root {
            --primary: #3E6D8C;
            --primary-dark: #33596F;
            --primary-deep: #295069;
            --primary-light: #E8F1F6;
            --accent: #D9A65F;
            --accent-dark: #C78A43;
            --accent-light: #F7ECDC;
            --bg: #F4F8FB;
            --card-bg: #FFFFFF;
            --text: #24384A;
            --text-secondary: #5B7083;
            --border: rgba(37, 58, 78, .08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(37,58,78,.06);
            --shadow-lg: 0 16px 32px rgba(37,58,78,.10);
            --space-section: 88px;
            --container-max: 1200px;
            --font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { transition: all .25s ease; }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }
        .section { padding: var(--space-section) 0; }
        
        /* ============ 顶部导航 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255,255,255,.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow .3s ease;
        }
        .site-header.scrolled { box-shadow: var(--shadow-sm); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(145deg, var(--primary), var(--primary-dark));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 2px 6px rgba(62,109,140,.3);
        }
        .logo-icon svg {
            width: 22px;
            height: 22px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 1px;
            line-height: 1.2;
        }
        .logo-text span {
            display: block;
            font-size: 11px;
            font-weight: 500;
            color: var(--primary);
            letter-spacing: 2px;
            text-transform: uppercase;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 34px;
            list-style: none;
        }
        .nav-menu a {
            text-decoration: none;
            font-size: 15px;
            color: var(--text-secondary);
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            transition: all .25s ease;
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: right center;
            transition: transform .3s ease;
        }
        .nav-menu a:hover,
        .nav-menu a.active { color: var(--primary); }
        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            transform: scaleX(1);
            transform-origin: left center;
        }
        .nav-cta { margin-left: 12px; }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: transparent;
            cursor: pointer;
            justify-content: center;
            align-items: center;
            transition: all .25s ease;
        }
        .nav-toggle:hover { background: var(--primary-light); }
        .nav-toggle span {
            position: relative;
            width: 18px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all .3s ease;
        }
        .nav-toggle span::before,
        .nav-toggle span::after {
            content: '';
            position: absolute;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all .3s ease;
        }
        .nav-toggle span::before { top: -6px; }
        .nav-toggle span::after { top: 6px; }
        .nav-toggle.open span { background: transparent; }
        .nav-toggle.open span::before { top: 0; transform: rotate(45deg); background: var(--primary); }
        .nav-toggle.open span::after { top: 0; transform: rotate(-45deg); background: var(--primary); }
        
        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 100px;
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(62,109,140,.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(62,109,140,.35);
            color: #fff;
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(62,109,140,.4);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(62,109,140,.2);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(217,166,95,.3);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(217,166,95,.4);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        
        /* ============ 页面通用元素 ============ */
        .tag-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 100px;
            letter-spacing: .5px;
            margin-bottom: 12px;
        }
        .tag-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        
        /* ============ 分类页 Hero ============ */
        .cat-hero {
            position: relative;
            padding: 180px 0 80px;
            background: linear-gradient(180deg, rgba(232,241,246,.92) 0%, rgba(244,248,251,.96) 100%);
            border-bottom: 1px solid var(--border);
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255,255,255,.82);
            z-index: 1;
        }
        .cat-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: rgba(37,58,78,.3);
        }
        .cat-hero h1 {
            font-size: 40px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            max-width: 720px;
        }
        .cat-hero h1 em {
            font-style: normal;
            color: var(--primary);
        }
        .cat-hero .sub-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 660px;
            line-height: 1.9;
            margin-bottom: 12px;
        }
        
        /* ============ 分类页主体两栏 ============ */
        .cat-main {
            padding: 72px 0 88px;
        }
        .cat-grid {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 48px;
            align-items: start;
        }
        .cat-content {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .cat-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin: 40px 0 16px;
            line-height: 1.4;
            padding-top: 32px;
            border-top: 1px solid var(--border);
        }
        .cat-content h2:first-child {
            margin-top: 0;
            border-top: none;
            padding-top: 0;
        }
        .cat-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin: 28px 0 12px;
            line-height: 1.4;
        }
        .cat-content p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text);
            margin-bottom: 16px;
        }
        .cat-content ul {
            margin: 0 0 20px 20px;
            padding: 0;
            list-style: none;
        }
        .cat-content ul li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 8px;
            font-size: 15px;
            line-height: 1.8;
        }
        .cat-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }
        .cat-content blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-size: 15px;
            color: var(--primary-deep);
            line-height: 1.8;
        }
        .cat-content img {
            border-radius: var(--radius-md);
            margin: 20px 0 8px;
            box-shadow: var(--shadow-sm);
        }
        .img-caption {
            font-size: 13px;
            color: var(--text-secondary);
            text-align: center;
            margin-bottom: 16px;
        }
        .content-list {
            margin: 16px 0 20px;
            padding: 0;
            list-style: none;
        }
        .content-list li {
            position: relative;
            padding: 8px 0 8px 32px;
            border-bottom: 1px solid var(--border);
            font-size: 15px;
        }
        .content-list li:last-child { border-bottom: none; }
        .content-list li::before {
            content: '◆';
            position: absolute;
            left: 8px;
            top: 8px;
            font-size: 12px;
            color: var(--accent);
        }
        
        /* ============ 侧栏 ============ */
        .cat-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
            position: sticky;
            top: 100px;
        }
        .widget {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 32px;
            box-shadow: var(--shadow-sm);
        }
        .widget h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            position: relative;
        }
        .widget h4::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .widget ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .widget ul li {
            padding: 9px 0;
            border-bottom: 1px dashed rgba(37,58,78,.08);
            font-size: 15px;
        }
        .widget ul li:last-child { border-bottom: none; }
        .widget ul li a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: all .25s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .widget ul li a::before {
            content: '›';
            font-size: 18px;
            color: var(--primary);
            font-weight: 700;
            line-height: 1;
        }
        .widget ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .widget-cta {
            background: var(--primary-light);
            text-align: left;
        }
        .widget-cta h4 { color: var(--primary-dark); }
        .widget-cta p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .widget-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .widget-contact-item svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
            margin-top: 3px;
        }
        
        /* ============ 亮点带 ============ */
        .highlights-band {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 56px 0;
        }
        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
        }
        .highlight-item {
            position: relative;
            padding: 4px 0 4px 24px;
            border-left: 3px solid var(--accent);
        }
        .highlight-item .hl-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -1px;
            font-feature-settings: "tnum";
        }
        .highlight-item .hl-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--accent-dark);
            margin-left: 2px;
        }
        .highlight-item .hl-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-top: 4px;
        }
        .highlight-item .hl-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 4px;
            line-height: 1.6;
        }
        
        /* ============ 相关内容卡片 ============ */
        .related-cards {
            padding: 72px 0;
            background: var(--bg);
        }
        .related-cards .section-header {
            margin-bottom: 36px;
        }
        .related-cards .section-header h2 {
            font-size: 28px;
        }
        .related-layout {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 32px;
        }
        .related-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(62,109,140,.25);
        }
        .related-card .rc-img {
            height: 200px;
            overflow: hidden;
        }
        .related-card.rc-large .rc-img { height: 260px; }
        .related-card .rc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .related-card:hover .rc-img img { transform: scale(1.04); }
        .rc-body {
            padding: 32px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .rc-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .rc-body p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex: 1;
            line-height: 1.7;
        }
        .rc-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .rc-link::after {
            content: '→';
            transition: transform .25s ease;
        }
        .rc-link:hover {
            color: var(--accent-dark);
        }
        .rc-link:hover::after {
            transform: translateX(4px);
        }
        
        /* ============ 简版 CTA ============ */
        .cta-strip {
            background: var(--primary-light);
            padding: 56px 0;
            border-top: 1px solid var(--border);
        }
        .cta-strip .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-strip .cta-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .cta-strip .cta-text p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
        }
        
        /* ============ 页脚 ============ */
        .site-footer {
            background: #1C2C3A;
            color: rgba(255,255,255,.85);
            padding-top: 72px;
            font-size: 14px;
            line-height: 1.8;
        }
        .site-footer a {
            color: rgba(255,255,255,.75);
            text-decoration: none;
            transition: color .25s ease;
        }
        .site-footer a:hover { color: var(--accent); }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand .logo .logo-text { color: #fff; }
        .footer-brand .logo .logo-text span { color: var(--accent); }
        .footer-brand .logo-icon {
            background: rgba(255,255,255,.15);
            box-shadow: none;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255,255,255,.6);
            margin-bottom: 20px;
            max-width: 420px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            padding: 5px 0;
        }
        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: rgba(255,255,255,.7);
            line-height: 1.6;
        }
        .footer-contact-item svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
            margin-top: 4px;
            opacity: .7;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.1);
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255,255,255,.5);
            text-align: center;
        }
        .footer-bottom p { margin: 0; }
        
        /* ============ 响应式 ============ */
        @media screen and (max-width: 1024px) {
            :root { --space-section: 72px; }
            .cat-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .cat-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .cat-content { padding: 36px; }
            .highlights-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
            .related-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }
        @media screen and (max-width: 768px) {
            .header-inner { height: 64px; }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 8px 24px 20px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu a {
                display: block;
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid var(--border);
            }
            .nav-menu a::after { display: none; }
            .nav-cta {
                margin: 16px 0 0;
                padding-top: 8px;
            }
            .cat-hero { padding: 140px 0 56px; }
            .cat-hero h1 { font-size: 30px; }
            .cat-content { padding: 28px 20px; }
            .cat-content h2 { font-size: 24px; }
            .highlights-band { padding: 40px 0; }
            .highlights-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .related-cards .rc-img,
            .related-card.rc-large .rc-img { height: 200px; }
            .cta-strip .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .site-header {
                background: rgba(255,255,255,.98);
            }
        }
        @media screen and (max-width: 640px) {
            :root { --space-section: 56px; }
            .cat-sidebar {
                grid-template-columns: 1fr;
            }
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .cat-hero h1 { font-size: 26px; }
            .cat-hero .sub-desc { font-size: 15px; }
            .logo-text { font-size: 18px; }
            .logo-text span { font-size: 10px; }
            .widget { padding: 24px 20px; }
        }
        @media screen and (min-width: 769px) {
            .nav-menu {
                display: flex !important;
            }
        }