/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --primary: #3568B2;
  --primary-dark: #1F3F73;
  --primary-darker: #18315D;
  --primary-light: #E9F2FF;
  --accent: #E8A33D;
  --accent-bg: rgba(232,163,61,0.12);
  --success: #2FA77A;
  --bg: #F5F8FC;
  --card-bg: #FFFFFF;
  --border: #E4EBF4;
  --text: #1E2A38;
  --text-secondary: #5B6B7C;
  --text-muted: #B4C0CE;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow: 0 4px 16px rgba(31,63,115,0.06);
  --shadow-hover: 0 12px 28px rgba(31,63,115,0.12);
  --shadow-nav: 0 2px 12px rgba(31,63,115,0.08);
  --container-width: 1240px;
  --spacing-lg: 80px;
  --spacing-sm: 48px;
  --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-stack);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary-darker); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ========== 按钮系统 ========== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  border: none;
  transition: box-shadow .25s ease, transform .25s ease, background-color .25s ease, color .25s ease;
  cursor: pointer;
}
.btn:focus { outline: 2px solid rgba(53,104,178,.5); outline-offset: 2px; }
.btn-primary {
  background: var(--primary-dark);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-darker); color: #fff; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(31,63,115,0.2); }
.btn-secondary {
  background: #fff;
  border: 1px solid #D8E0EA;
  color: var(--primary);
}
.btn-secondary:hover { background: #EFF5FC; color: var(--primary-dark); transform: translateY(-1px); }
.btn-accent {
  background: var(--accent);
  color: var(--primary-darker);
}
.btn-accent:hover { background: #d9952f; color: #fff; transform: translateY(-1px); }
.btn-text {
  background: transparent;
  border: none;
  color: var(--primary);
  font-size: 15px;
  padding: 8px 4px;
}
.btn-text:hover { color: var(--primary-dark); }
.btn-disable {
  background: #E9EEF4;
  color: var(--text-muted);
  cursor: not-allowed;
}
.btn-lg { padding: 16px 36px; font-size: 17px; }

/* ========== 徽章 / 标签 ========== */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
}
.badge-accent {
  background: var(--accent-bg);
  color: var(--accent);
}
.badge-primary {
  background: rgba(53,104,178,0.12);
  color: var(--primary);
}
.badge-success {
  background: rgba(47,167,122,0.15);
  color: var(--success);
}
.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  background: #F0F4FA;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: background .25s, color .25s;
  cursor: pointer;
}
.tag:hover { background: var(--primary-light); color: var(--primary); }

/* ========== 导航 ========== */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow .3s ease;
}
.site-header.scrolled {
  box-shadow: var(--shadow-nav);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
}
.header-top {
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}
.logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.logo-text small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 1px;
}
.header-search {
  flex: 1;
  max-width: 420px;
  position: relative;
}
.header-search input {
  width: 100%;
  height: 44px;
  padding: 0 44px 0 16px;
  border: 1px solid #D8E0EA;
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-size: 14px;
  color: var(--text);
  transition: border-color .25s, box-shadow .25s;
}
.header-search input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(53,104,178,0.12);
}
.header-search .search-icon {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 15px;
  pointer-events: none;
}
.header-hot {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.header-hot .hot-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}
.header-hot a {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  transition: all .25s;
}
.header-hot a:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}
.main-nav {
  background: #fff;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
}
.main-nav ul li a {
  display: block;
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  border-bottom: 2px solid transparent;
  transition: color .25s, border-color .25s, background .25s;
}
.main-nav ul li a:hover {
  color: var(--primary);
  background: rgba(53,104,178,0.06);
}
.main-nav ul li a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: transparent;
}
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--primary-dark);
  padding: 8px;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  background: linear-gradient(135deg, rgba(31,63,115,0.92) 0%, rgba(53,104,178,0.82) 60%, rgba(53,104,178,0.7) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 96px 0 80px;
  color: #fff;
}
.hero .container {
  position: relative;
  z-index: 2;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  margin-bottom: 20px;
  backdrop-filter: blur(4px);
}
.hero-title {
  font-size: 46px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.hero-title .highlight {
  color: var(--accent);
}
.hero-subtitle {
  font-size: 18px;
  line-height: 1.65;
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
  max-width: 560px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-cta .btn {
  font-size: 16px;
  padding: 14px 32px;
}
.hero-stats {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.2);
}
.hero-stat-item {
  display: flex;
  flex-direction: column;
}
.hero-stat-number {
  font-size: 36px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: #fff;
  line-height: 1.2;
}
.hero-stat-number .plus { color: var(--accent); }
.hero-stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  margin-top: 4px;
}
.hero-visual {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}
.hero-visual img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(31,63,115,0.08);
}
.hero-visual-card {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-radius: var(--radius);
  padding: 16px;
  z-index: 2;
}
.hero-visual-card .title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.hero-visual-card .desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ========== 板块通用 ========== */
.section { padding: var(--spacing-lg) 0; }
.section-alt { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 52px;
}
.section-tag {
  display: inline-block;
  margin-bottom: 12px;
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 14px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========== 权益对比表 ========== */
.compare-section { position: relative; }
.compare-wrap {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}
.compare-table th,
.compare-table td {
  padding: 14px 18px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.compare-table thead th {
  background: #F1F5FA;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  padding: 18px;
}
.compare-table thead th.member-col {
  background: var(--primary-light);
  border-left: 1px solid rgba(53,104,178,0.1);
}
.compare-table thead th .member-badge {
  display: inline-block;
  background: var(--accent-bg);
  color: var(--accent);
  padding: 2px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
  margin-left: 6px;
  vertical-align: middle;
}
.compare-table tbody td {
  color: var(--text-secondary);
  font-size: 14px;
}
.compare-table tbody td:first-child {
  text-align: left;
  color: var(--text);
  font-weight: 500;
}
.compare-table tbody td.member-col {
  background: var(--primary-light);
  border-left: 1px solid rgba(53,104,178,0.08);
}
.compare-table tbody tr:last-child td {
  border-bottom: none;
}
.compare-icon-ok {
  color: var(--primary);
  font-size: 18px;
}
.compare-icon-no {
  color: var(--text-muted);
  font-size: 18px;
}
.compare-cta-row {
  padding: 24px;
  text-align: center;
  background: #fff;
  border-top: 1px solid var(--border);
}

/* ========== 会员等级卡片 ========== */
.levels-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.level-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 24px 28px;
  text-align: center;
  position: relative;
  transition: box-shadow .25s ease, transform .25s ease;
  border-top: 3px solid transparent;
}
.level-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.level-card.current {
  border-top-color: var(--primary);
}
.level-card .level-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 24px;
  margin-bottom: 16px;
}
.level-card .level-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.level-card .level-count {
  font-size: 15px;
  color: var(--primary);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  margin-bottom: 12px;
}
.level-card .level-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========== 专属内容预览 ========== */
.exclusive-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.exclusive-main {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow .25s ease, transform .25s ease;
  min-height: 360px;
}
.exclusive-main:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.exclusive-main img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
}
.exclusive-main::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(31,63,115,0.85) 0%, rgba(31,63,115,0.1) 100%);
}
.exclusive-main-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 28px;
  z-index: 2;
  color: #fff;
}
.exclusive-main-content .title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.exclusive-main-content .desc {
  font-size: 14px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 0;
}
.exclusive-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.exclusive-side-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow .25s ease, transform .25s ease;
  flex: 1;
  min-height: 168px;
}
.exclusive-side-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.exclusive-side-card img {
  width: 100%;
  height: 100%;
  min-height: 168px;
  object-fit: cover;
}
.exclusive-side-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(31,63,115,0.75) 0%, rgba(31,63,115,0.05) 100%);
}
.exclusive-side-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 18px;
  z-index: 2;
  color: #fff;
}
.exclusive-side-content .title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.exclusive-side-content .desc {
  font-size: 13px;
  color: rgba(255,255,255,0.85);
}
.exclusive-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(4px);
}
.exclusive-footer {
  text-align: center;
  margin-top: 36px;
}

/* ========== 最新消息 ========== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
}
.news-card {
  display: flex;
  gap: 20px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  transition: box-shadow .25s ease, transform .25s ease;
  align-items: center;
}
.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.news-card-thumb {
  width: 160px;
  height: 100px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}
.news-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}
.news-card:hover .news-card-thumb img {
  transform: scale(1.05);
}
.news-card-body {
  flex: 1;
  min-width: 0;
}
.news-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.4;
  display: block;
  transition: color .25s;
}
.news-card-title:hover { color: var(--primary); }
.news-card-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.news-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.news-card-meta .tag { font-size: 12px; padding: 2px 10px; }
.news-card-meta .time i { margin-right: 4px; }
.news-empty {
  text-align: center;
  padding: 60px 24px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.news-empty .icon {
  font-size: 40px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.news-empty p {
  font-size: 16px;
  color: var(--text-secondary);
}
.news-more {
  text-align: center;
  margin-top: 28px;
}

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 32px;
}
.accordion-item {
  border-bottom: 1px solid var(--border);
}
.accordion-item:last-child {
  border-bottom: none;
}
.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: color .25s;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
}
.accordion-title:hover {
  color: var(--primary);
}
.accordion-title .icon {
  font-size: 20px;
  color: var(--text-muted);
  transition: transform .3s ease;
  flex-shrink: 0;
}
.accordion-item.is-active .accordion-title .icon {
  transform: rotate(45deg);
  color: var(--primary);
}
.accordion-content {
  padding: 0 4px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: none;
}
.accordion-item.is-active .accordion-content {
  display: block;
}

/* ========== CTA区域 ========== */
.cta-section {
  padding: 40px 0 var(--spacing-lg);
}
.cta-box {
  background: var(--primary-dark);
  border-radius: 16px;
  padding: 48px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.cta-box::after {
  content: "";
  position: absolute;
  bottom: -40px;
  left: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
}
.cta-title {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}
.cta-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  position: relative;
  z-index: 2;
}
.cta-box .btn {
  position: relative;
  z-index: 2;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 48px 0 0;
}
.footer-top {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 360px;
}
.footer-col-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
}
.footer-links a:hover {
  color: var(--primary);
}
.footer-bottom {
  padding: 20px 0;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom a {
  color: var(--text-secondary);
}
.footer-bottom a:hover { color: var(--primary); }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-visual img { height: 300px; }
  .levels-grid { grid-template-columns: repeat(2, 1fr); }
  .exclusive-grid { grid-template-columns: 1fr; }
  .exclusive-side { flex-direction: row; }
  .exclusive-side-card { min-height: 140px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --spacing-lg: 48px; }
  .section { padding: var(--spacing-lg) 0; }
  .section-title { font-size: 24px; }
  .hero { padding: 64px 0 48px; }
  .hero-title { font-size: 30px; }
  .hero-subtitle { font-size: 16px; }
  .hero-stats { gap: 20px; }
  .hero-stat-number { font-size: 28px; }
  .header-search { display: none; }
  .header-hot { display: none; }
  .mobile-menu-toggle { display: inline-block; }
  .main-nav ul {
    flex-direction: column;
    display: none;
    padding: 12px 0;
  }
  .main-nav ul.open { display: flex; }
  .main-nav ul li a {
    padding: 12px 20px;
    border-bottom: none;
    border-left: 3px solid transparent;
  }
  .main-nav ul li a.active {
    border-left-color: var(--primary);
    border-bottom: none;
    background: var(--primary-light);
  }
  .compare-table { font-size: 13px; }
  .compare-table th, .compare-table td { padding: 10px 8px; }
  .levels-grid { grid-template-columns: 1fr; }
  .exclusive-side { flex-direction: column; }
  .news-card { flex-direction: column; padding: 14px; }
  .news-card-thumb { width: 100%; height: 160px; }
  .cta-box { padding: 32px 24px; }
  .cta-title { font-size: 24px; }
  .faq-wrap { padding: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .hero-title { font-size: 26px; }
  .hero-subtitle { font-size: 15px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .compare-table { display: block; overflow-x: auto; white-space: nowrap; }
  .levels-grid { grid-template-columns: 1fr; }
  .exclusive-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 22px; }
  .cta-title { font-size: 20px; }
  .btn-lg { padding: 14px 24px; font-size: 15px; }
}

/* roulang page: category1 */
:root {
  --primary: #3568B2;
  --primary-dark: #1F3F73;
  --primary-darker: #18315D;
  --accent: #E8A33D;
  --success: #2FA77A;
  --bg: #F5F8FC;
  --card-bg: #FFFFFF;
  --border: #E4EBF4;
  --text: #1E2A38;
  --text-secondary: #5B6B7C;
  --text-disabled: #B4C0CE;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 16px rgba(31,63,115,0.06);
  --shadow-hover: 0 12px 28px rgba(31,63,115,0.12);
  --shadow-nav: 0 2px 12px rgba(31,63,115,0.08);
  --transition: all .25s ease;
  --container: 1240px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button, input { font-family: inherit; font-size: inherit; }
.grid-container { max-width: var(--container); padding-left: 24px; padding-right: 24px; }
.grid-margin-x > .cell { margin-bottom: 24px; }

/* Header */
.site-header {
  position: relative;
  background: var(--card-bg);
  z-index: 1000;
  transition: box-shadow .3s ease;
}
.site-header.header-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,.95);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-nav);
  border-bottom: 1px solid var(--border);
}
.header-top {
  border-bottom: 1px solid var(--border);
  background: var(--card-bg);
}
.header-top-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-dark);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  display: flex;
  flex-direction: column;
}
.logo-text small {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: .5px;
}
.header-search {
  flex: 1;
  max-width: 420px;
  position: relative;
}
.header-search input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 44px 0 16px;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.header-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(53,104,178,.12);
  background: #fff;
}
.search-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 14px;
  pointer-events: none;
}
.header-hot {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.hot-label { font-weight: 600; }
.header-hot a {
  padding: 4px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 13px;
  transition: var(--transition);
}
.header-hot a:hover {
  background: #EFF5FC;
  border-color: var(--primary);
  color: var(--primary);
}

/* Main Nav */
.main-nav {
  background: var(--card-bg);
}
.main-nav .container {
  display: flex;
  align-items: center;
  gap: 10px;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0;
}
.main-nav ul li a {
  display: block;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  position: relative;
}
.main-nav ul li a:hover {
  color: var(--primary);
  background: #F0F5FC;
  border-radius: 6px 6px 0 0;
}
.main-nav ul li a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: transparent;
}
.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  font-size: 18px;
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.mobile-menu-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Breadcrumb */
.breadcrumb {
  padding: 14px 0;
  font-size: 14px;
  color: var(--text-secondary);
  background: transparent;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { margin: 0 8px; color: var(--text-disabled); }

/* Hero */
.hero {
  position: relative;
  padding: 72px 0 64px;
  background: linear-gradient(135deg, rgba(31,63,115,.92), rgba(53,104,178,.72)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
}
.hero-inner {
  max-width: 780px;
}
.hero h1 {
  font-size: 44px;
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 16px;
  color: #fff;
}
.hero .hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,.92);
  margin-bottom: 28px;
  max-width: 640px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
}
.btn-primary {
  background: var(--primary-dark);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-darker);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(31,63,115,.25);
}
.btn-primary:focus-visible {
  outline: 2px solid rgba(53,104,178,.5);
  outline-offset: 2px;
}
.btn-light {
  background: rgba(255,255,255,.14);
  color: #fff;
  border: 1px solid rgba(255,255,255,.35);
}
.btn-light:hover {
  background: rgba(255,255,255,.24);
  color: #fff;
}
.btn-accent {
  background: var(--accent);
  color: var(--primary-darker);
}
.btn-accent:hover {
  background: #d8942e;
  color: var(--primary-darker);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(232,163,61,.3);
}
.btn-outline {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--primary);
}
.btn-outline:hover {
  background: #EFF5FC;
  color: var(--primary);
}

/* Stats */
.stats-section {
  padding: 56px 0 40px;
}
.stats-grid {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.stat-item {
  flex: 1;
  min-width: 180px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.stat-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.stat-num {
  font-size: 40px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  margin-bottom: 6px;
}
.stat-num .unit {
  font-size: 20px;
  margin-left: 2px;
  font-weight: 600;
  color: var(--text-secondary);
}
.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Section */
.section {
  padding: 56px 0;
}
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
}
.section-header h2 {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.section-header p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.section-header .section-tag {
  display: inline-block;
  background: rgba(53,104,178,.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}

/* Feature Cards */
.feature-cards .cell {
  display: flex;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  flex: 1;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.feature-icon {
  width: 52px;
  height: 52px;
  background: rgba(53,104,178,.1);
  color: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}
.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

/* Scenario */
.scenario-section {
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.scenario-grid {
  display: flex;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}
.scenario-img {
  flex: 1;
  min-width: 300px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.scenario-img img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  transition: transform .5s ease;
}
.scenario-img:hover img { transform: scale(1.03); }
.scenario-content {
  flex: 1;
  min-width: 300px;
}
.scenario-content h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--text);
}
.scenario-list {
  margin-top: 8px;
}
.scenario-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 10px 0;
  font-size: 15px;
  color: var(--text-secondary);
  border-bottom: 1px dashed var(--border);
}
.scenario-list li:last-child { border-bottom: none; }
.scenario-list li i {
  color: var(--primary);
  margin-top: 4px;
  font-size: 15px;
}

/* Content Cards */
.content-cards .cell {
  display: flex;
}
.content-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  flex: 1;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.content-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.content-card-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.content-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.content-card:hover .content-card-img img { transform: scale(1.04); }
.content-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(31,63,115,.08);
}
.card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: rgba(255,255,255,.92);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  box-shadow: 0 2px 6px rgba(31,63,115,.12);
}
.card-body {
  padding: 20px 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-meta {
  font-size: 13px;
  color: var(--text-disabled);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.card-body h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--text);
}
.card-body h3 a { color: var(--text); }
.card-body h3 a:hover { color: var(--primary); }
.card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  margin-bottom: 12px;
}
.card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-link i { transition: transform .25s ease; }
.card-link:hover i { transform: translateX(4px); }

/* Process */
.process-section {
  background: var(--primary-dark);
  color: #fff;
}
.process-section .section-header h2 { color: #fff; }
.process-section .section-header p { color: rgba(255,255,255,.8); }
.process-section .section-tag { background: rgba(255,255,255,.15); color: #fff; }
.process-steps {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.process-step {
  flex: 1;
  min-width: 220px;
  max-width: 260px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
  transition: var(--transition);
}
.process-step:hover {
  background: rgba(255,255,255,.14);
  transform: translateY(-2px);
}
.step-num {
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: var(--primary-darker);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  margin: 0 auto 16px;
}
.process-step h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #fff;
}
.process-step p {
  font-size: 14px;
  color: rgba(255,255,255,.78);
  line-height: 1.6;
}

/* FAQ */
.faq-wrap {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child { border-bottom: none; }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 6px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: color .25s ease;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  font-size: 22px;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform .3s ease;
  font-weight: 400;
}
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 6px 18px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.faq-answer p { margin-bottom: 8px; }
.faq-answer p:last-child { margin-bottom: 0; }

/* CTA */
.cta-section {
  padding: 64px 0;
}
.cta-box {
  background: var(--primary-dark);
  padding: 48px;
  border-radius: 16px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(53,104,178,.3);
}
.cta-box::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(232,163,61,.15);
}
.cta-box h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
  color: #fff;
}
.cta-box p {
  font-size: 16px;
  color: rgba(255,255,255,.82);
  max-width: 560px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 2;
  line-height: 1.7;
}
.cta-box .btn-accent { position: relative; z-index: 2; }

/* Footer */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
}
.footer-top {
  padding: 48px 0 32px;
}
.footer-grid {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.footer-brand {
  flex: 1.4;
  min-width: 260px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: 14px;
}
.footer-col {
  flex: 1;
  min-width: 140px;
}
.footer-col-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links li a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color .25s ease;
}
.footer-links li a:hover {
  color: var(--primary);
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 16px 0;
  font-size: 13px;
  color: var(--text-secondary);
}

/* Responsive */
@media screen and (max-width: 1024px) {
  .header-top-inner { gap: 12px; }
  .header-search { max-width: 300px; }
  .hero h1 { font-size: 38px; }
  .section-header h2 { font-size: 28px; }
  .process-step { min-width: 200px; }
}

@media screen and (max-width: 768px) {
  .header-top-inner { flex-wrap: wrap; padding: 12px 0; }
  .logo { width: 100%; justify-content: space-between; }
  .header-search { order: 3; max-width: 100%; flex-basis: 100%; margin-top: 4px; }
  .header-hot { display: none; }
  .main-nav .container { flex-wrap: wrap; }
  .mobile-menu-toggle {
    display: flex;
  }
  .main-nav ul {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 10px 0;
    gap: 0;
  }
  .main-nav ul.open {
    display: flex;
  }
  .main-nav ul li a {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }
  .main-nav ul li a:hover {
    background: var(--bg);
  }
  .main-nav ul li a.active {
    background: var(--bg);
  }
  .hero { padding: 48px 0 40px; }
  .hero h1 { font-size: 32px; }
  .hero .hero-sub { font-size: 16px; }
  .stats-grid { gap: 12px; }
  .stat-item { min-width: 150px; padding: 20px 16px; }
  .stat-num { font-size: 32px; }
  .section { padding: 40px 0; }
  .section-header { margin-bottom: 32px; }
  .section-header h2 { font-size: 24px; }
  .scenario-grid { gap: 28px; }
  .scenario-content h2 { font-size: 24px; }
  .cta-box { padding: 32px 20px; }
  .cta-box h2 { font-size: 26px; }
  .footer-grid { gap: 24px; }
}

@media screen and (max-width: 520px) {
  .grid-container { padding-left: 16px; padding-right: 16px; }
  .hero h1 { font-size: 28px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .stat-item { min-width: 100%; }
  .feature-card { padding: 24px 20px; }
  .process-step { min-width: 100%; max-width: 100%; }
  .cta-box { border-radius: 12px; }
  .cta-box .btn { width: 100%; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}

/* roulang page: category2 */
:root {
  --primary: #3568B2;
  --primary-dark: #1F3F73;
  --primary-darker: #18315D;
  --amber: #E8A33D;
  --success: #2FA77A;
  --bg-page: #F5F8FC;
  --bg-card: #FFFFFF;
  --border: #E4EBF4;
  --text-main: #1E2A38;
  --text-sub: #5B6B7C;
  --text-muted: #B4C0CE;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 16px rgba(31, 63, 115, 0.06);
  --shadow-hover: 0 12px 28px rgba(31, 63, 115, 0.12);
  --shadow-nav: 0 2px 12px rgba(31, 63, 115, 0.08);
  --container-max: 1240px;
  --transition: transform .25s ease, box-shadow .25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-darker); }

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

input { font-family: inherit; }

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

/* ========== Header ========== */
.site-header {
  position: relative;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.site-header.sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-nav);
  border-bottom: 1px solid var(--border);
}

.header-top {
  border-bottom: 1px solid var(--border);
}

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-dark);
  color: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.2;
}

.logo-text small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-sub);
  letter-spacing: 0.5px;
}

.header-search {
  flex: 1;
  max-width: 420px;
  min-width: 200px;
  position: relative;
}

.header-search input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0 42px 0 18px;
  font-size: 14px;
  color: var(--text-main);
  background: var(--bg-page);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.header-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(53,104,178,0.12);
}

.search-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

.header-hot {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-sub);
  white-space: nowrap;
}

.hot-label { color: var(--text-muted); }

.header-hot a {
  color: var(--text-sub);
  padding: 4px 10px;
  background: var(--bg-page);
  border-radius: 999px;
  transition: background .2s, color .2s;
}

.header-hot a:hover {
  color: var(--primary);
  background: #EFF5FC;
}

.main-nav {
  background: #FFFFFF;
}

.main-nav .container {
  display: flex;
  align-items: center;
  gap: 16px;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
}

.main-nav ul li a {
  display: block;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  border-bottom: 2px solid transparent;
  transition: color .2s, background .2s;
}

.main-nav ul li a:hover {
  color: var(--primary);
  background: #F5F8FC;
}

.main-nav ul li a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 18px;
  color: var(--primary-dark);
  line-height: 1;
}

/* ========== Hero ========== */
.cat-hero {
  position: relative;
  background: linear-gradient(90deg, rgba(31,63,115,0.92) 0%, rgba(53,104,178,0.78) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 72px 0 64px;
  overflow: hidden;
}

.cat-hero .breadcrumb {
  font-size: 13px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.cat-hero .breadcrumb a {
  color: rgba(255,255,255,0.8);
}

.cat-hero .breadcrumb a:hover { color: #fff; }

.cat-hero .breadcrumb .sep { opacity: 0.6; }

.cat-hero h1 {
  font-size: 42px;
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 16px;
  color: #fff;
  letter-spacing: 1px;
}

.cat-hero .hero-desc {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,0.92);
  max-width: 640px;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: none;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  line-height: 1.4;
}

.btn-primary {
  background: var(--primary-dark);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-darker);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(31,63,115,0.25);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.6);
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-color: #fff;
  transform: translateY(-1px);
}

.btn-amber {
  background: var(--amber);
  color: var(--primary-darker);
}

.btn-amber:hover {
  background: #D6942F;
  color: var(--primary-darker);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(232,163,61,0.3);
}

.btn:focus {
  outline: 2px solid rgba(53,104,178,0.5);
  outline-offset: 2px;
}

/* ========== Sections ========== */
.section {
  padding: 80px 0;
}

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

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

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

.section-header p {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.7;
}

.section-header .sub-badge {
  display: inline-block;
  background: rgba(232,163,61,0.12);
  color: var(--amber);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* ========== Feature Cards ========== */
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  height: 100%;
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: #EFF5FC;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* ========== Scenarios ========== */
.scenario-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
  box-shadow: var(--shadow-card);
  height: 100%;
}

.scenario-wrap .sc-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: #EFF5FC;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.scenario-wrap h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-main);
}

.scenario-wrap p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* ========== Exclusive Preview ========== */
.exclusive-area {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.exclusive-badge {
  display: inline-block;
  background: rgba(232,163,61,0.12);
  color: var(--amber);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.exclusive-main {
  padding: 32px;
}

.exclusive-main img {
  border-radius: 10px;
  margin-bottom: 18px;
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.exclusive-main h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
}

.exclusive-main p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.exclusive-small {
  padding: 26px 24px;
  border-top: 1px solid var(--border);
  transition: background .2s;
}

.exclusive-small:hover { background: #F9FBFF; }

.exclusive-small .exclusive-badge { margin-bottom: 8px; }

.exclusive-small h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
  line-height: 1.4;
}

.exclusive-small p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
}

.exclusive-footer {
  padding: 20px 32px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.exclusive-footer a {
  font-size: 15px;
  font-weight: 600;
}

/* ========== Content Category Cards ========== */
.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  height: 100%;
}

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

.content-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 0;
}

.content-card-body {
  padding: 24px;
}

.content-card .card-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  background: #EFF5FC;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
  font-weight: 500;
}

.content-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
}

.content-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

/* ========== FAQ ========== */
.faq-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.faq-item { border-bottom: 1px solid var(--border); }

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
  transition: background .2s, color .2s;
}

.faq-question:hover { background: #F9FBFF; color: var(--primary); }

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #EFF5FC;
  color: var(--primary);
  font-size: 14px;
  transition: transform .3s ease;
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
}

/* ========== CTA ========== */
.cta-area {
  background: var(--primary-dark);
  border-radius: 16px;
  padding: 52px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
  margin: 0 0 80px;
}

.cta-area::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 320px;
  height: 320px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}

.cta-area::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 260px;
  height: 260px;
  background: rgba(255,255,255,0.03);
  border-radius: 50%;
}

.cta-area h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-area p {
  font-size: 16px;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
}

.cta-area .btn { position: relative; z-index: 1; }

/* ========== Footer ========== */
.site-footer {
  background: var(--primary-dark);
  color: #fff;
  margin-top: 0;
}

.footer-top {
  padding: 56px 0 36px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}

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

.footer-brand .logo-icon { background: #fff; color: var(--primary-dark); }

.footer-brand .logo-text { color: #fff; }

.footer-brand .logo-text small { color: rgba(255,255,255,0.6); }

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.7);
  max-width: 340px;
}

.footer-col-title {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

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

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

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: color .2s, padding-left .2s;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-bottom {
  padding: 20px 0;
  background: rgba(0,0,0,0.18);
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .header-top-inner { gap: 12px; }
  .header-search { max-width: 300px; }
  .cat-hero h1 { font-size: 36px; }
  .section { padding: 64px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .cta-area { padding: 44px 32px; }
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .header-top-inner { flex-wrap: wrap; justify-content: center; }
  .header-search { flex: 0 0 100%; max-width: 100%; order: 3; }
  .header-hot { display: none; }
  .main-nav .container { flex-wrap: wrap; }
  .mobile-menu-toggle { display: inline-block; }
  .main-nav ul {
    flex: 0 0 100%;
    display: none;
    flex-direction: column;
    width: 100%;
    padding: 8px 0;
  }
  .main-nav ul.open { display: flex; }
  .main-nav ul li a {
    padding: 12px 16px;
    border-bottom: none;
    border-left: 3px solid transparent;
  }
  .main-nav ul li a.active {
    border-bottom-color: transparent;
    border-left-color: var(--primary);
    background: #F5F8FC;
  }
  .cat-hero { padding: 48px 0 40px; }
  .cat-hero h1 { font-size: 30px; }
  .cat-hero .hero-desc { font-size: 15px; }
  .section { padding: 48px 0; }
  .section-header { margin-bottom: 32px; }
  .section-header h2 { font-size: 24px; }
  .feature-card { padding: 24px 20px; }
  .exclusive-main { padding: 24px 20px; }
  .exclusive-small { padding: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-top { padding: 40px 0 24px; }
  .footer-bottom .container { justify-content: center; text-align: center; }
  .cta-area { padding: 36px 24px; margin-bottom: 48px; }
  .cta-area h2 { font-size: 24px; }
  .faq-question { padding: 16px 18px; font-size: 15px; }
  .faq-answer-inner { padding: 0 18px 16px; }
  .btn { padding: 11px 20px; font-size: 14px; }
}

@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .header-top-inner { justify-content: center; }
  .logo-text { font-size: 18px; }
  .cat-hero h1 { font-size: 26px; }
  .exclusive-main img { height: 160px; }
  .content-card img { height: 150px; }
}

/* roulang page: article */
:root {
  --primary: #3568B2;
  --primary-dark: #1F3F73;
  --primary-darker: #18315D;
  --accent: #E8A33D;
  --success: #2FA77A;
  --bg: #F5F8FC;
  --card: #FFFFFF;
  --border: #E4EBF4;
  --border-light: #D8E0EA;
  --text: #1E2A38;
  --text-secondary: #5B6B7C;
  --text-muted: #B4C0CE;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 4px 16px rgba(31, 63, 115, 0.06);
  --shadow-hover: 0 12px 28px rgba(31, 63, 115, 0.12);
  --nav-shadow: 0 2px 12px rgba(31, 63, 115, 0.08);
  --container: 1240px;
  --space: 80px;
  --space-mobile: 48px;
  --transition: box-shadow .25s ease, transform .25s ease;
}

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

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

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}

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

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

input {
  font-family: inherit;
}

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

/* ===== Header ===== */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 1000;
}

.site-header.stuck {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  box-shadow: var(--nav-shadow);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-top {
  background: #fff;
}

.header-top-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-dark);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.logo-text small {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 400;
}

.header-search {
  flex: 1;
  max-width: 420px;
  position: relative;
}

.header-search input {
  width: 100%;
  height: 44px;
  padding: 0 44px 0 16px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.header-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(53, 104, 178, .15);
}

.search-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
  pointer-events: none;
}

.header-hot {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.header-hot a {
  color: var(--text-secondary);
}

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

/* ===== 导航 ===== */
.main-nav {
  background: #fff;
  border-top: 1px solid var(--border);
}

.main-nav .container {
  position: relative;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
  padding: 0;
}

.main-nav ul li {
  position: relative;
}

.main-nav ul a {
  display: block;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 2px solid transparent;
  transition: color .2s, background .2s, border-color .2s;
}

.main-nav ul a:hover {
  color: var(--primary);
  background: #EFF5FC;
}

.main-nav ul a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.mobile-menu-toggle {
  display: none;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 20px 0 0;
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

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

.breadcrumb a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.breadcrumb .sep {
  color: var(--text-muted);
}

.breadcrumb .current {
  color: var(--text-secondary);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== 文章布局 ===== */
.article-main {
  padding: 24px 0 var(--space);
}

.article-layout {
  margin-top: 24px;
  align-items: flex-start;
}

.article-content-wrap {
  margin-bottom: 32px;
}

.article-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 40px 48px;
}

.article-head {
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.article-head h1 {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}

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

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

/* ===== 正文排版 ===== */
.article-body {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
}

.article-body p {
  margin-bottom: 24px;
}

.article-body h2,
.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 28px 0 12px;
  color: var(--text);
  line-height: 1.4;
}

.article-body h4 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 10px;
  color: var(--text);
  line-height: 1.4;
}

.article-body img {
  width: 100%;
  border-radius: var(--radius-sm);
  margin: 20px 0;
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: var(--bg);
  padding: 16px 20px;
  margin: 20px 0;
  color: var(--text-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-body ul,
.article-body ol {
  margin: 0 0 24px 20px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body a {
  color: var(--primary);
  text-decoration: underline;
}

.article-body a:hover {
  color: var(--primary-dark);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 15px;
}

.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
}

.article-body th {
  background: var(--bg);
  font-weight: 600;
}

.article-body h3,
.article-body h4 {
  scroll-margin-top: 140px;
}

/* ===== 文章底部 ===== */
.article-footer {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== 侧边栏 ===== */
.article-sidebar {
  margin-bottom: 32px;
}

.sidebar-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 20px;
}

.sidebar-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
  position: relative;
}

.sidebar-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 32px;
  height: 2px;
  background: var(--primary);
}

.sidebar-links {
  list-style: none;
}

.sidebar-links li {
  margin-bottom: 8px;
}

.sidebar-links a {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text);
  transition: background .2s, color .2s;
}

.sidebar-links a::before {
  content: "›";
  margin-right: 8px;
  color: var(--primary);
  font-weight: 700;
}

.sidebar-links a:hover {
  background: #EFF5FC;
  color: var(--primary);
}

.sidebar-links a.toc-sub {
  padding-left: 24px;
  font-size: 13px;
}

.sidebar-list {
  list-style: none;
}

.sidebar-list li {
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px dashed var(--border);
}

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

.sidebar-cta {
  background: var(--primary-dark);
  color: #fff;
}

.sidebar-cta h3 {
  color: #fff;
  margin-bottom: 8px;
  font-size: 17px;
}

.sidebar-cta p {
  font-size: 14px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 16px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: none;
  transition: var(--transition);
  line-height: 1;
}

.btn:focus {
  outline: 2px solid rgba(53, 104, 178, .5);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--primary-dark);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-darker);
  color: #fff;
  transform: translateY(-1px);
}

.btn-secondary {
  background: #fff;
  border: 1px solid var(--border-light);
  color: var(--primary);
}

.btn-secondary:hover {
  background: #EFF5FC;
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--accent);
  color: #1F3F73;
}

.btn-accent:hover {
  background: #d9932a;
  color: #1F3F73;
  transform: translateY(-1px);
}

.btn-text {
  background: none;
  border: none;
  color: var(--primary);
  padding: 12px 8px;
}

.btn-text:hover {
  color: var(--primary-dark);
  background: none;
  transform: none;
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

/* ===== 空态 ===== */
.empty-state {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 60px 40px;
  text-align: center;
}

.empty-icon {
  font-size: 48px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.empty-state h1 {
  font-size: 24px;
  color: var(--text);
  margin-bottom: 12px;
}

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

/* ===== 相关推荐 ===== */
.related-section {
  margin-top: 48px;
}

.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.related-grid {
  margin-top: 0;
}

.related-card {
  margin-bottom: 24px;
}

.related-card-inner {
  display: block;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
}

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

.related-img-wrap {
  height: 180px;
  overflow: hidden;
}

.related-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}

.related-card-inner:hover .related-img-wrap img {
  transform: scale(1.03);
}

.related-body {
  padding: 20px;
}

.related-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
}

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

/* ===== 徽章 ===== */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}

.badge-amber {
  background: rgba(232, 163, 61, .12);
  color: var(--accent);
  margin-bottom: 10px;
}

/* ===== CTA ===== */
.cta-section {
  margin-top: 48px;
}

.cta-inner {
  background: var(--primary-dark);
  border-radius: 16px;
  padding: 48px;
  text-align: center;
  color: #fff;
}

.cta-inner h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 24px;
}

.cta-inner .btn-accent {
  color: var(--primary-dark);
  font-weight: 700;
}

/* ===== Footer ===== */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  margin-top: 0;
}

.footer-top {
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .logo {
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 360px;
}

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

.footer-links {
  list-style: none;
}

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

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

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 16px 0;
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Foundation 栅格兼容 ===== */
.grid-x {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
}

.grid-x > .cell {
  flex: 0 0 auto;
  min-height: 0;
}

.large-8 {
  width: 66.6667%;
}

.large-4 {
  width: 33.3333%;
}

.grid-margin-x {
  margin-left: -12px;
  margin-right: -12px;
}

.grid-margin-x > .cell {
  padding-left: 12px;
  padding-right: 12px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .article-sidebar {
    margin-top: 24px;
  }
  .large-8,
  .large-4 {
    width: 100%;
  }
  .article-card {
    padding: 28px 24px;
  }
  .related-grid .large-4 {
    width: 50%;
  }
}

@media (max-width: 768px) {
  .header-top-inner {
    flex-wrap: wrap;
    gap: 12px;
  }
  .header-search {
    order: 3;
    flex-basis: 100%;
    max-width: none;
  }
  .header-hot {
    margin-left: auto;
  }
  .main-nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 8px 0;
    box-shadow: var(--nav-shadow);
  }
  .main-nav ul.open {
    display: flex;
  }
  .main-nav ul a {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
  }
  .mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text);
    padding: 12px 0;
  }
  .breadcrumb {
    padding: 16px 0 0;
  }
  .article-main {
    padding-bottom: var(--space-mobile);
  }
  .article-head h1 {
    font-size: 26px;
  }
  .article-body {
    font-size: 16px;
  }
  .related-grid .large-4 {
    width: 100%;
  }
  .cta-inner {
    padding: 32px 24px;
  }
  .cta-inner h2 {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .container {
    padding: 0 16px;
  }
}

@media (max-width: 520px) {
  .header-top-inner {
    padding: 12px 0;
  }
  .logo-text {
    font-size: 18px;
  }
  .header-hot {
    width: 100%;
    justify-content: flex-start;
  }
  .article-card {
    padding: 20px 16px;
  }
  .article-meta {
    gap: 10px;
  }
  .article-footer {
    flex-direction: column;
  }
  .btn {
    width: 100%;
  }
  .cta-inner {
    padding: 28px 20px;
  }
  .related-img-wrap {
    height: 150px;
  }
  .grid-margin-x {
    margin-left: 0;
    margin-right: 0;
  }
  .grid-margin-x > .cell {
    padding-left: 0;
    padding-right: 0;
  }
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
:root {
  --primary: #3568B2;
  --primary-dark: #1F3F73;
  --primary-darker: #18315D;
  --accent: #E8A33D;
  --accent-bg: rgba(232,163,61,.12);
  --success: #2FA77A;
  --bg: #F5F8FC;
  --white: #FFFFFF;
  --border: #E4EBF4;
  --text: #1E2A38;
  --text-secondary: #5B6B7C;
  --text-muted: #B4C0CE;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow: 0 4px 16px rgba(31,63,115,.06);
  --shadow-hover: 0 12px 28px rgba(31,63,115,.12);
  --shadow-nav: 0 2px 12px rgba(31,63,115,.08);
  --transition: all .25s ease;
  --container: 1240px;
  --section-space: 80px;
}

/* ===== 基础 Reset ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
  border: 0;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--primary-dark);
}
button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
ul,
ol {
  list-style: none;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 2px solid rgba(53,104,178,.5);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--primary-dark);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--primary-darker);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}
.btn-outline {
  background: var(--white);
  border-color: #D8E0EA;
  color: var(--primary);
}
.btn-outline:hover {
  background: #EFF5FC;
  color: var(--primary-dark);
  border-color: var(--primary);
}
.btn-accent {
  background: var(--accent);
  color: var(--primary-darker);
}
.btn-accent:hover {
  background: #F0B04F;
  color: var(--primary-darker);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

/* ===== 页头导航 ===== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 1001;
  transition: var(--transition);
}
.site-header.sticky {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-nav);
}
.header-top {
  border-bottom: 1px solid var(--border);
}
.header-top-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--primary-dark);
  color: var(--white);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  flex-shrink: 0;
}
.logo-text {
  font-size: 21px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.1;
  display: flex;
  flex-direction: column;
}
.logo-text small {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: .5px;
  margin-top: 2px;
}
.header-search {
  flex: 1;
  max-width: 420px;
  position: relative;
}
.header-search input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 0 44px 0 16px;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  transition: var(--transition);
}
.header-search input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(53,104,178,.12);
}
.search-icon {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
  pointer-events: none;
}
.header-hot {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  flex-shrink: 0;
  white-space: nowrap;
}
.hot-label {
  color: var(--text-secondary);
}
.header-hot a {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--bg);
  color: var(--text-secondary);
  border: 1px solid transparent;
  font-size: 13px;
}
.header-hot a:hover {
  color: var(--primary);
  border-color: rgba(53,104,178,.4);
  background: rgba(53,104,178,.06);
}
.main-nav {
  background: var(--white);
}
.main-nav .container {
  display: flex;
  align-items: center;
  min-height: 52px;
  gap: 16px;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 2px;
}
.main-nav ul li a {
  display: block;
  padding: 13px 18px;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.main-nav ul li a:hover {
  color: var(--primary);
  background: rgba(53,104,178,.06);
}
.main-nav ul li a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}
.mobile-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text);
  border-radius: var(--radius-sm);
}
.mobile-menu-toggle:hover {
  background: var(--bg);
  color: var(--primary);
}

/* ===== Hero 区 ===== */
.page-hero {
  background: linear-gradient(135deg, rgba(31,63,115,.9) 0%, rgba(53,104,178,.84) 100%), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  padding: 80px 0;
  color: var(--white);
  position: relative;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 18px;
  color: rgba(255,255,255,.7);
}
.breadcrumb a {
  color: rgba(255,255,255,.9);
}
.breadcrumb a:hover {
  color: var(--white);
}
.page-hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 16px;
}
.page-hero .hero-subtitle {
  font-size: 17px;
  line-height: 1.7;
  max-width: 680px;
  color: rgba(255,255,255,.88);
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== 通用区块 ===== */
.section {
  padding: var(--section-space) 0;
}
.section-header {
  max-width: 760px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-header p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.7;
}
.section-more {
  text-align: center;
  margin-top: 40px;
}
.text-btn {
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: transparent;
  transition: var(--transition);
}
.text-btn:hover {
  color: var(--primary);
  background: rgba(53,104,178,.08);
}

/* ===== 卖点卡片 ===== */
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 26px;
  height: 100%;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(53,104,178,.1);
  color: var(--primary);
  font-size: 21px;
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
}
.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 适用场景 ===== */
.scenario-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  text-align: center;
  height: 100%;
  transition: var(--transition);
}
.scenario-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.scenario-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(53,104,178,.1);
  color: var(--primary);
  font-size: 22px;
}
.scenario-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.scenario-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== 流程 ===== */
.process-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.steps-grid .cell {
  text-align: center;
}
.step-icon {
  width: 46px;
  height: 46px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--primary-dark);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  box-shadow: var(--shadow);
}
.steps-grid h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.steps-grid p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 260px;
  margin: 0 auto;
  line-height: 1.6;
}
.step-arrow {
  color: var(--text-muted);
  font-size: 22px;
  padding-top: 28px;
  display: block;
}
@media (max-width: 768px) {
  .step-arrow {
    display: none;
  }
}

/* ===== 主题内容卡片 ===== */
.topic-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.topic-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.topic-thumb {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
}
.topic-body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.topic-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.tag-badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(53,104,178,.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-pill);
}
.date-badge {
  font-size: 13px;
  color: var(--text-muted);
}
.topic-body h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 10px;
}
.topic-body h3 a {
  color: var(--text);
  transition: var(--transition);
}
.topic-body h3 a:hover {
  color: var(--primary);
}
.topic-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.topic-link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.topic-link i {
  font-size: 12px;
  transition: var(--transition);
}
.topic-link:hover i {
  transform: translateX(4px);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--white);
  border-top: 1px solid var(--border);
}
.faq-list {
  max-width: 840px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active {
  box-shadow: var(--shadow-hover);
  border-color: rgba(53,104,178,.3);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  background: transparent;
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question i {
  color: var(--primary);
  transition: transform .3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
  padding: 0 22px;
}
.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 22px 20px;
}
.faq-answer p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

/* ===== CTA 区 ===== */
.cta-section .cta-box {
  background: linear-gradient(135deg, rgba(31,63,115,.96) 0%, rgba(53,104,178,.9) 100%), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border-radius: 16px;
  padding: 56px 48px;
  text-align: center;
  color: var(--white);
  box-shadow: var(--shadow-hover);
}
.cta-box h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
}
.cta-box p {
  font-size: 16px;
  color: rgba(255,255,255,.85);
  max-width: 560px;
  margin: 0 auto 30px;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.78);
  margin-top: 80px;
}
.site-footer .logo-text {
  color: var(--white);
}
.site-footer .logo-text small {
  color: rgba(255,255,255,.6);
}
.footer-top {
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding: 48px 0;
}
.footer-brand .logo {
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,.7);
  max-width: 380px;
}
.footer-col-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,.75);
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  padding: 18px 0;
  font-size: 13px;
  color: rgba(255,255,255,.58);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root {
    --section-space: 64px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .page-hero h1 {
    font-size: 36px;
  }
  .section-header h2 {
    font-size: 28px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-space: 48px;
  }
  .container {
    padding: 0 16px;
  }
  .header-top-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 14px 0;
    gap: 12px;
  }
  .header-search {
    order: 3;
    max-width: 100%;
    flex-basis: 100%;
  }
  .header-hot {
    display: none;
  }
  .mobile-menu-toggle {
    display: inline-flex;
  }
  .main-nav .container {
    flex-wrap: wrap;
    padding: 0 16px;
  }
  .main-nav ul {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: 8px 0;
  }
  .main-nav ul.open {
    display: flex;
  }
  .main-nav ul li a {
    padding: 14px 16px;
    border-bottom: 1px solid transparent;
  }
  .page-hero {
    padding: 56px 0;
  }
  .page-hero h1 {
    font-size: 30px;
  }
  .section-header {
    margin-bottom: 32px;
  }
  .section-header h2 {
    font-size: 24px;
  }
  .grid-x > .cell {
    margin-bottom: 24px;
  }
  .grid-x > .cell:last-child {
    margin-bottom: 0;
  }
  .cta-box {
    padding: 40px 24px;
  }
  .cta-box h2 {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    padding: 40px 0 24px;
    gap: 28px;
  }
  .footer-bottom .container {
    flex-direction: column;
    align-items: flex-start !important;
    gap: 4px;
  }
}

@media (max-width: 520px) {
  .hero-actions .btn {
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .page-hero h1 {
    font-size: 27px;
  }
  .feature-card,
  .scenario-card {
    padding: 22px 18px;
  }
  .steps-grid .cell {
    padding: 0 12px;
  }
  .faq-question {
    font-size: 15px;
    padding: 16px;
  }
  .faq-answer {
    padding: 0 16px;
  }
  .faq-item.active .faq-answer {
    padding: 0 16px 16px;
  }
}