/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #123b66;
  --primary-dark: #0c2b4e;
  --primary-light: #2a5d8f;
  --accent: #f0a23e;
  --accent-dark: #d8892a;
  --bg-light: #f3f6fb;
  --bg-white: #ffffff;
  --bg-dark: #10263d;
  --text-dark: #1e2d3f;
  --text-body: #42576b;
  --text-muted: #7c8a9c;
  --border: #e1e7ef;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(18, 59, 102, 0.07);
  --shadow-md: 0 6px 24px rgba(18, 59, 102, 0.10);
  --shadow-lg: 0 12px 40px rgba(18, 59, 102, 0.16);
  --header-height: 76px;
  --transition: all 0.3s ease;
}
/* ===== 重置 / 基础 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
ul {
  list-style: none;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
:focus-visible {
  outline: 3px solid rgba(240, 162, 62, 0.55);
  outline-offset: 2px;
  border-radius: 4px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 90px 0;
}
.section-sm {
  padding: 60px 0;
}
.section-alt {
  background: var(--bg-white);
}
/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  white-space: nowrap;
  border: 2px solid transparent;
  transition: var(--transition);
  text-align: center;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(18, 59, 102, 0.22);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(18, 59, 102, 0.3);
}
.btn-accent {
  background: var(--accent);
  color: #1e2d3f;
  box-shadow: 0 4px 16px rgba(240, 162, 62, 0.28);
}
.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(240, 162, 62, 0.36);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.65);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-lg {
  padding: 15px 38px;
  font-size: 16px;
}
.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}
/* ===== 标签 / 徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
}
.badge-accent {
  background: rgba(240, 162, 62, 0.15);
  color: #b9761b;
}
.badge-primary {
  background: rgba(18, 59, 102, 0.1);
  color: var(--primary);
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: linear-gradient(135deg, rgba(18, 59, 102, 0.08), rgba(240, 162, 62, 0.12));
  border-radius: 100px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.section-tag i {
  color: var(--accent);
  font-size: 14px;
}
/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #ffffff;
  box-shadow: 0 2px 12px rgba(18, 59, 102, 0.07);
  border-bottom: 1px solid rgba(225, 231, 239, 0.8);
}
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 20px;
}
.site-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.3;
  flex-shrink: 0;
}
.site-logo i {
  color: var(--accent);
  font-size: 22px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.main-nav a {
  padding: 9px 20px;
  border-radius: 100px;
  font-weight: 500;
  font-size: 14.5px;
  color: var(--text-body);
  background: transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover {
  background: rgba(18, 59, 102, 0.07);
  color: var(--primary);
}
.main-nav a.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 3px 10px rgba(18, 59, 102, 0.2);
}
.nav-cta {
  flex-shrink: 0;
}
/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(120deg, rgba(12, 43, 78, 0.86), rgba(18, 59, 102, 0.72)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 120px 0 100px;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  right: -80px;
  bottom: -60px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(240, 162, 62, 0.25), transparent 68%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-content {
  max-width: 680px;
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 8px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 28px;
  backdrop-filter: blur(4px);
}
.hero-badge i {
  color: var(--accent);
}
.hero h1 {
  font-size: 48px;
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: 0.5px;
  margin-bottom: 22px;
  color: #fff;
}
.hero p {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 36px;
  max-width: 600px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 52px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}
.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat-item strong {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.stat-item span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.66);
}
/* ===== 板块标题 ===== */
.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--text-dark);
  margin: 18px 0 12px;
  line-height: 1.3;
}
.section-head p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}
/* ===== 核心卡片 ===== */
.card-core {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  height: 100%;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.card-core::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}
.card-core:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card-core:hover::before {
  opacity: 1;
}
.card-core .card-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(18, 59, 102, 0.1), rgba(240, 162, 62, 0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--primary);
  margin-bottom: 22px;
}
.card-core h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.card-core p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.7;
}
/* ===== 分类卡片 ===== */
.cat-card {
  height: 100%;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.cat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.cat-card .cat-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.cat-card .cat-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.cat-card:hover .cat-cover img {
  transform: scale(1.06);
}
.cat-card .cat-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12, 43, 78, 0.55), transparent 40%);
}
.cat-card .cat-body {
  padding: 26px 24px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.cat-card .cat-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.cat-card .cat-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
}
.cat-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  margin-top: 18px;
}
.cat-link i {
  transition: transform 0.3s ease;
}
.cat-card:hover .cat-link i {
  transform: translateX(5px);
}
/* ===== 数据区块 ===== */
.stats-band {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: 24px;
  padding: 56px 48px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.stats-band::before {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(240, 162, 62, 0.3), transparent 70%);
  border-radius: 50%;
}
.stats-band .stat-col {
  text-align: center;
  padding: 20px 10px;
}
.stats-band .stat-col strong {
  font-size: 42px;
  font-weight: 800;
  display: block;
  line-height: 1.1;
  color: #fff;
  margin-bottom: 8px;
}
.stats-band .stat-col span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}
/* ===== 资讯卡片 ===== */
.news-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  height: 100%;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(18, 59, 102, 0.2);
}
.news-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.news-cat {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(240, 162, 62, 0.15);
  color: #b9761b;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
}
.news-time {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}
.news-card h3 {
  font-size: 16.5px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.read-more {
  margin-top: 16px;
  color: var(--primary);
  font-weight: 600;
  font-size: 13.5px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.empty-tip {
  text-align: center;
  padding: 60px 30px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border);
  color: var(--text-muted);
  font-size: 16px;
}
/* ===== 流程步骤 ===== */
.step-item {
  text-align: center;
  padding: 20px;
  position: relative;
}
.step-num {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 4px 16px rgba(18, 59, 102, 0.28);
}
.step-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.step-item p {
  font-size: 13.5px;
  color: var(--text-muted);
  max-width: 220px;
  margin: 0 auto;
}
.step-arrow {
  position: absolute;
  right: -18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 20px;
  z-index: 5;
}
@media (max-width: 900px) {
  .step-arrow {
    display: none;
  }
}
/* ===== 图文优势区 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.feature-visual {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.feature-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.feature-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12, 43, 78, 0.3), transparent);
}
.feature-list .feature-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}
.feature-list .feature-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 14px;
  background: rgba(18, 59, 102, 0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
}
.feature-list h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}
.feature-list p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}
/* ===== FAQ ===== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(18, 59, 102, 0.25);
  box-shadow: var(--shadow-sm);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  background: none;
  width: 100%;
  text-align: left;
}
.faq-q i {
  color: var(--accent);
  font-size: 18px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-q i {
  transform: rotate(45deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-a-inner {
  padding: 0 24px 22px;
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, rgba(12, 43, 78, 0.92), rgba(18, 59, 102, 0.8)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.cta-section h2 {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.cta-section p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.78);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}
.footer-brand {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand i {
  color: var(--accent);
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
  max-width: 340px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  padding: 5px 0;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--accent);
  padding-left: 6px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 48px;
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom a:hover {
  color: var(--accent);
}
/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 40px;
  }
  .section {
    padding: 70px 0;
  }
  .feature-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}
@media (max-width: 768px) {
  .site-nav {
    flex-wrap: wrap;
    height: auto;
    padding: 14px 0;
  }
  .site-logo {
    font-size: 17px;
  }
  .main-nav {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
  }
  .main-nav::-webkit-scrollbar {
    display: none;
  }
  .nav-cta {
    display: none;
  }
  .hero {
    padding: 80px 0 64px;
  }
  .hero h1 {
    font-size: 32px;
  }
  .hero p {
    font-size: 16px;
  }
  .hero-stats {
    gap: 24px;
  }
  .stat-item strong {
    font-size: 22px;
  }
  .section-head h2 {
    font-size: 27px;
  }
  .stats-band {
    padding: 40px 24px;
  }
  .stats-band .stat-col strong {
    font-size: 30px;
  }
  .cta-section h2 {
    font-size: 28px;
  }
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .hero {
    padding: 64px 0 48px;
  }
  .hero-badge {
    font-size: 12px;
    padding: 6px 14px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    width: 100%;
  }
  .hero-stats {
    flex-direction: column;
    gap: 18px;
  }
  .section {
    padding: 52px 0;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .card-core {
    padding: 26px 20px;
  }
  .stats-band .stat-col {
    padding: 12px 0;
  }
  .stats-band .stat-col strong {
    font-size: 26px;
  }
  .feature-grid {
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: article */
:root {
            --primary: #0a2239;
            --primary-600: #13395e;
            --primary-700: #0d2a47;
            --accent: #d4a24e;
            --accent-600: #b8893a;
            --accent-100: #f5e9d3;
            --bg-light: #f5f7fa;
            --bg-white: #ffffff;
            --text-main: #1e2a35;
            --text-light: #5a6b7a;
            --text-white: #f8fafc;
            --border-light: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(10, 34, 57, 0.06);
            --shadow-md: 0 6px 24px rgba(10, 34, 57, 0.08);
            --shadow-lg: 0 12px 40px rgba(10, 34, 57, 0.12);
            --space-section: 80px;
            --transition-base: all 0.3s ease;
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
            color: var(--text-main);
            background: var(--bg-light);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition-base); }
        ul, ol { padding-left: 20px; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            line-height: 1.4;
        }
        .btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn:active { transform: translateY(0); box-shadow: none; }
        .btn:focus-visible { outline: 3px solid rgba(212, 162, 78, 0.5); outline-offset: 2px; }
        .btn-primary { background: var(--primary); color: #fff; }
        .btn-primary:hover { background: var(--primary-600); }
        .btn-accent { background: var(--accent); color: var(--primary); }
        .btn-accent:hover { background: var(--accent-600); color: #fff; }
        .btn-outline { background: transparent; border-color: rgba(255,255,255,0.6); color: #fff; }
        .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); }
        .btn-sm { padding: 8px 18px; font-size: 14px; }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 12px rgba(10, 34, 57, 0.04);
        }
        .site-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .site-logo i { color: var(--accent); font-size: 22px; }
        .main-nav { display: flex; align-items: center; gap: 6px; }
        .main-nav a {
            font-size: 15px;
            color: var(--text-light);
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            transition: var(--transition-base);
            position: relative;
        }
        .main-nav a:hover { color: var(--primary); background: rgba(10, 34, 57, 0.04); }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(212, 162, 78, 0.12);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .nav-cta { display: flex; align-items: center; }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
        }
        .article-hero {
            position: relative;
            background: var(--primary) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 90px 0 70px;
            color: #fff;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 34, 57, 0.92) 20%, rgba(10, 34, 57, 0.68) 60%, rgba(10, 34, 57, 0.45) 100%);
            z-index: 1;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255,255,255,0.75);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: rgba(255,255,255,0.75); }
        .breadcrumb a:hover { color: var(--accent); }
        .breadcrumb .sep { color: rgba(255,255,255,0.4); }
        .article-hero h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.35;
            max-width: 800px;
            margin: 0 0 18px;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255,255,255,0.8);
        }
        .article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }
        .category-badge {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            background: var(--accent);
            color: var(--primary);
            letter-spacing: 0.3px;
        }
        .category-badge.category-login { background: #2d6cdf; color: #fff; }
        .category-badge.category-security { background: #1e9a67; color: #fff; }
        .category-badge.category-guide { background: #e8863a; color: #fff; }
        .article-layout { padding: 60px 0 80px; background: var(--bg-light); }
        .article-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 40px;
            align-items: start;
        }
        .article-main {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px;
            border: 1px solid var(--border-light);
        }
        .article-cover {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 30px;
        }
        .article-cover img { width: 100%; object-fit: cover; border-radius: var(--radius-md); }
        .article-content { font-size: 16px; color: var(--text-main); }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 36px 0 16px;
            color: var(--primary);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-100);
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 28px 0 12px;
            color: var(--primary-600);
        }
        .article-content p { margin-bottom: 18px; line-height: 1.9; }
        .article-content ul, .article-content ol { margin-bottom: 18px; padding-left: 24px; }
        .article-content li { margin-bottom: 6px; line-height: 1.8; }
        .article-content a { color: var(--primary-600); border-bottom: 1px solid var(--accent); }
        .article-content a:hover { color: var(--accent-600); }
        .article-content img { border-radius: var(--radius-md); margin: 24px 0; }
        .article-content blockquote {
            background: var(--bg-light);
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-content table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        .article-content table th, .article-content table td {
            border: 1px solid var(--border-light);
            padding: 10px 14px;
            text-align: left;
            font-size: 15px;
        }
        .article-content table th { background: var(--bg-light); font-weight: 600; }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }
        .tag-item {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            background: var(--bg-light);
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-light);
        }
        .tag-item i { color: var(--accent); margin-right: 4px; }
        .sidebar { display: flex; flex-direction: column; gap: 24px; }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent-100);
        }
        .sidebar-title i { color: var(--accent); }
        .latest-list { list-style: none; padding: 0; margin: 0; }
        .latest-list li { margin-bottom: 14px; }
        .latest-list li:last-child { margin-bottom: 0; }
        .latest-list a {
            display: flex;
            gap: 12px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
        }
        .latest-list a:hover { background: var(--bg-light); }
        .latest-list .latest-thumb {
            width: 64px;
            height: 48px;
            border-radius: 6px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .latest-list .latest-info { display: flex; flex-direction: column; }
        .latest-list .latest-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .latest-list .latest-date { font-size: 12px; color: var(--text-light); margin-top: 4px; }
        .guide-steps { list-style: none; padding: 0; margin: 0; counter-reset: step; }
        .guide-steps li {
            counter-increment: step;
            position: relative;
            padding: 10px 0 10px 44px;
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.6;
            border-bottom: 1px dashed var(--border-light);
        }
        .guide-steps li:last-child { border-bottom: none; }
        .guide-steps li::before {
            content: counter(step);
            position: absolute;
            left: 0;
            top: 9px;
            width: 30px;
            height: 30px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
        }
        .sidebar-contact {
            background: linear-gradient(135deg, var(--primary), var(--primary-600));
            color: #fff;
        }
        .sidebar-contact .sidebar-title {
            color: #fff;
            border-bottom-color: rgba(255,255,255,0.2);
        }
        .sidebar-contact .sidebar-title i { color: var(--accent); }
        .sidebar-contact .contact-desc { font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 18px; }
        .sidebar-contact .contact-btn { width: 100%; }
        .related-section { background: #fff; padding: 70px 0; border-top: 1px solid var(--border-light); }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 36px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin: 0;
            position: relative;
            padding-left: 18px;
        }
        .section-head h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 5px;
            height: 26px;
            background: var(--accent);
            border-radius: 4px;
        }
        .section-head .section-sub { color: var(--text-light); font-size: 14px; }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 20px; }
        .news-card {
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }
        .news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .news-card .card-thumb { position: relative; overflow: hidden; }
        .news-card .card-thumb img { width: 100%; height: 180px; object-fit: cover; transition: transform 0.5s ease; }
        .news-card:hover .card-thumb img { transform: scale(1.05); }
        .news-card .card-body { padding: 22px 20px; }
        .news-card .card-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-600);
            background: var(--accent-100);
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .news-card .card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            margin: 0 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-title:hover { color: var(--primary); }
        .news-card .card-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .faq-section { padding: 80px 0; background: var(--bg-light); }
        .faq-list { max-width: 860px; margin: 0 auto; }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--accent);
            transition: var(--transition-base);
        }
        .faq-item:hover { box-shadow: var(--shadow-md); }
        .faq-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 10px;
        }
        .faq-item p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(130deg, #061829, #0a2a47 60%, #13395e);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(212,162,78,0.2), transparent 70%);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(212,162,78,0.15), transparent 70%);
            border-radius: 50%;
        }
        .cta-content { position: relative; z-index: 2; }
        .cta-content h2 {
            font-size: 32px;
            font-weight: 800;
            margin: 0 0 16px;
            color: #fff;
        }
        .cta-content p {
            font-size: 16px;
            color: rgba(255,255,255,0.75);
            max-width: 640px;
            margin: 0 auto 32px;
        }
        .cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .site-footer {
            background: #061829;
            color: #8fa3b8;
            padding: 60px 0 0;
            font-size: 14px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand i { color: var(--accent); }
        .footer-desc { line-height: 1.7; color: #8fa3b8; max-width: 360px; }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(212,162,78,0.4);
            display: inline-block;
        }
        .footer-col a {
            display: block;
            color: #8fa3b8;
            padding: 6px 0;
            transition: var(--transition-base);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 6px; }
        .footer-bottom {
            margin-top: 48px;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: #6d8299;
            font-size: 13px;
        }
        .footer-bottom a { color: #6d8299; }
        .footer-bottom a:hover { color: var(--accent); }
        .not-found-box {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            margin: 60px 0;
        }
        .not-found-box i {
            font-size: 56px;
            color: var(--accent);
            margin-bottom: 20px;
            display: block;
        }
        .not-found-box h2 {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .not-found-box p { color: var(--text-light); margin-bottom: 24px; }
        @media (max-width: 1024px) {
            :root { --space-section: 64px; }
            .article-grid { grid-template-columns: minmax(0, 1fr) 320px; gap: 24px; }
            .article-hero h1 { font-size: 32px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .site-nav { height: 64px; }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px;
                box-shadow: 0 12px 32px rgba(10,34,57,0.12);
                border-bottom: 1px solid var(--border-light);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                z-index: 99;
            }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 12px 16px; font-size: 15px; width: 100%; text-align: left; border-radius: var(--radius-sm); }
            .main-nav a.active::after { display: none; }
            .main-nav a.active { background: rgba(212,162,78,0.15); }
            .nav-toggle { display: block; }
            .nav-cta .btn { display: none; }
            .article-hero { padding: 60px 0 40px; }
            .article-hero h1 { font-size: 26px; }
            .article-grid { grid-template-columns: 1fr; }
            .sidebar { margin-top: 20px; }
            .related-grid { grid-template-columns: 1fr; }
            .article-main { padding: 24px; }
            .cta-content h2 { font-size: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .site-logo { font-size: 16px; }
            .site-logo i { font-size: 18px; }
            .article-meta { gap: 12px; font-size: 13px; }
            .related-grid { grid-template-columns: 1fr; }
            .faq-item { padding: 18px 16px; }
            .article-main { padding: 18px; }
            .cta-buttons .btn { width: 100%; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a4da3;
            --primary-dark: #083d82;
            --primary-light: #e8f0fe;
            --accent: #f0a500;
            --accent-dark: #c88600;
            --bg: #f4f7fc;
            --bg-deep: #0c2340;
            --white: #ffffff;
            --text: #172b4d;
            --text-weak: #5a6b8c;
            --border: #dbe3ee;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(10, 77, 163, 0.08);
            --shadow-md: 0 8px 30px rgba(10, 77, 163, 0.12);
            --shadow-lg: 0 16px 48px rgba(10, 77, 163, 0.16);
            --transition: all 0.25s ease;
            --spacing-section: 84px;
            --font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ::selection {
            background: rgba(10, 77, 163, 0.18);
            color: var(--primary-dark);
        }

        /* ===== 通用布局 ===== */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .site-main {
            overflow: hidden;
        }

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

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }

        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 14px;
            text-transform: none;
        }

        .section-head .section-tag i {
            font-size: 13px;
        }

        .section-head h2 {
            font-size: clamp(28px, 3vw, 38px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(219, 227, 238, 0.8);
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset;
        }

        .site-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 28px;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity 0.2s;
        }

        .site-logo:hover {
            opacity: 0.85;
        }

        .site-logo i {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), #1a6fd4);
            color: #fff;
            border-radius: 12px;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(10, 77, 163, 0.28);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            border-radius: 24px;
            transition: var(--transition);
        }

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

        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 4px;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn i {
            font-size: 14px;
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(10, 77, 163, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(10, 77, 163, 0.32);
        }

        .btn-accent {
            background: var(--accent);
            color: #1a1a2e;
            box-shadow: 0 6px 18px rgba(240, 165, 0, 0.28);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(240, 165, 0, 0.36);
            color: #fff;
        }

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

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
        }

        .btn:focus-visible,
        .main-nav a:focus-visible,
        .site-logo:focus-visible {
            outline: 3px solid rgba(10, 77, 163, 0.4);
            outline-offset: 2px;
        }

        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            color: var(--text);
            font-size: 20px;
            transition: var(--transition);
            background: transparent;
        }

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

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 120px 0 110px;
            background: linear-gradient(135deg, rgba(12, 35, 64, 0.92), rgba(8, 61, 130, 0.88)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
            isolation: isolate;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at top right, rgba(240, 165, 0, 0.18), transparent 60%);
            z-index: -1;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 6px 16px;
            border-radius: 30px;
            backdrop-filter: blur(6px);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }

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

        .breadcrumb i {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.5);
        }

        .page-hero h1 {
            font-size: clamp(34px, 4.5vw, 54px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 22px;
            letter-spacing: -1px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.25);
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .page-hero h1 span {
            background: linear-gradient(120deg, var(--accent), #ffc94d);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .page-hero .subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.88);
            max-width: 680px;
            margin: 0 auto 36px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        .hero-badges .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            backdrop-filter: blur(6px);
        }

        .hero-badges .badge i {
            color: var(--accent);
        }

        /* ===== 登录前准备 ===== */
        .prepare-section {
            background: var(--white);
        }

        .prep-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 34px 28px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .prep-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .prep-card:hover {
            background: var(--white);
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateY(-4px);
        }

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

        .prep-card .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .prep-card:hover .card-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(10, 77, 163, 0.3);
        }

        .prep-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .prep-card p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* ===== 登录方式 ===== */
        .methods-section {
            background: var(--bg);
        }

        .method-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .method-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: transparent;
        }

        .method-card .method-img {
            height: 210px;
            overflow: hidden;
            position: relative;
        }

        .method-card .method-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .method-card:hover .method-img img {
            transform: scale(1.04);
        }

        .method-card .method-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(12, 35, 64, 0.35));
        }

        .method-card .method-body {
            padding: 30px 28px 32px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .method-card .method-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .method-card .method-meta .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            background: var(--primary-light);
            color: var(--primary);
        }

        .method-card h3 {
            font-size: 21px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .method-card p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.75;
            flex: 1;
        }

        .method-card .method-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            margin-top: 20px;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
        }

        .method-card .method-link i {
            font-size: 13px;
            transition: transform 0.2s;
        }

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

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

        /* ===== 登录流程步骤 ===== */
        .steps-section {
            background: var(--bg-deep);
            position: relative;
            color: #fff;
            overflow: hidden;
        }

        .steps-section::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -120px;
            width: 480px;
            height: 480px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(10, 77, 163, 0.35), transparent 70%);
        }

        .steps-section .section-head h2 {
            color: #fff;
        }

        .steps-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .steps-section .section-tag {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
            margin-top: 30px;
        }

        .steps-list::before {
            content: "";
            position: absolute;
            top: 46px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, rgba(240, 165, 0, 0.6), rgba(10, 77, 163, 0.5), rgba(240, 165, 0, 0.6));
            opacity: 0.6;
        }

        .step-item {
            text-align: center;
            padding: 24px 18px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(240, 165, 0, 0.35);
            transform: translateY(-4px);
        }

        .step-num {
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #ffc94d);
            color: #1a1a2e;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            position: relative;
            z-index: 2;
            box-shadow: 0 8px 24px rgba(240, 165, 0, 0.35);
        }

        .step-item h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }

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

        /* ===== 内容资讯 ===== */
        .news-section {
            background: var(--white);
        }

        .news-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: 0 2px 10px rgba(10, 77, 163, 0.04);
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .news-card .news-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-img img {
            transform: scale(1.05);
        }

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

        .news-card .news-date {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 12px;
        }

        .news-card .news-date i {
            color: var(--accent);
            font-size: 12px;
        }

        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 12px;
            color: var(--text);
            transition: var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card h3:hover {
            color: var(--primary);
        }

        .news-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-link {
            margin-top: 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .news-card .news-link:hover {
            color: var(--accent);
            gap: 9px;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 64px 0;
        }

        .stat-item {
            text-align: center;
            padding: 20px 16px;
        }

        .stat-item .stat-icon {
            font-size: 28px;
            margin-bottom: 14px;
            color: var(--accent);
        }

        .stat-item .stat-num {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 8px;
        }

        .stat-item .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
        }

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

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

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

        .faq-item:hover {
            border-color: rgba(10, 77, 163, 0.3);
        }

        .faq-item.open {
            box-shadow: var(--shadow);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 26px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: var(--white);
            cursor: pointer;
            transition: var(--transition);
        }

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

        .faq-question .faq-icon {
            width: 30px;
            height: 30px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 26px 24px;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--white);
        }

        .cta-panel {
            position: relative;
            background: linear-gradient(135deg, var(--bg-deep) 0%, #12345a 100%);
            border-radius: calc(var(--radius) + 8px);
            padding: 68px 56px;
            overflow: hidden;
            color: #fff;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(240, 165, 0, 0.3), transparent 70%);
        }

        .cta-panel::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(10, 77, 163, 0.45), transparent 70%);
        }

        .cta-panel .cta-inner {
            position: relative;
            z-index: 2;
        }

        .cta-panel h2 {
            font-size: clamp(28px, 3vw, 38px);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .cta-panel p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
        }

        .site-footer .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

        .site-footer .footer-brand i {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), #1a6fd4);
            border-radius: 10px;
            font-size: 15px;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 420px;
            margin-bottom: 24px;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
            width: fit-content;
        }

        .footer-col a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        .footer-bottom {
            margin-top: 48px;
            padding: 22px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }

            .site-nav {
                height: 68px;
                gap: 16px;
            }

            .site-logo {
                font-size: 19px;
            }

            .site-logo i {
                width: 38px;
                height: 38px;
                font-size: 16px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                padding: 16px 24px;
                box-shadow: 0 20px 40px rgba(12, 35, 64, 0.14);
                border-bottom: 1px solid var(--border);
                border-radius: 0 0 16px 16px;
                gap: 2px;
            }

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

            .main-nav a {
                padding: 14px 16px;
                border-radius: 12px;
                font-size: 16px;
                justify-content: center;
            }

            .main-nav a.active::after {
                display: none;
            }

            .mobile-toggle {
                display: inline-flex;
            }

            .nav-cta .btn {
                padding: 8px 16px;
                font-size: 13px;
            }

            .page-hero {
                padding: 96px 0 88px;
            }

            .steps-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .steps-list::before {
                display: none;
            }

            .step-item {
                padding: 20px 16px;
            }

            .cta-panel {
                padding: 56px 36px;
            }
        }

        @media screen and (max-width: 768px) {
            .container {
                padding: 0 18px;
            }

            .section {
                padding: 64px 0;
            }

            .section-head {
                margin-bottom: 38px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .page-hero {
                padding: 76px 0 70px;
            }

            .page-hero h1 {
                font-size: 32px;
                line-height: 1.25;
            }

            .page-hero .subtitle {
                font-size: 15px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        @media screen and (max-width: 520px) {
            .site-logo {
                font-size: 17px;
                gap: 8px;
            }

            .site-logo i {
                width: 34px;
                height: 34px;
                font-size: 14px;
                border-radius: 10px;
            }

            .nav-cta .btn {
                display: none;
            }

            .page-hero {
                padding: 60px 0 56px;
            }

            .page-hero h1 {
                font-size: 27px;
            }

            .page-hero .subtitle {
                font-size: 14px;
                line-height: 1.7;
            }

            .hero-badges .badge {
                font-size: 12px;
                padding: 6px 14px;
            }

            .stats-section {
                padding: 48px 0;
            }

            .stat-item .stat-num {
                font-size: 32px;
            }

            .cta-panel {
                padding: 44px 24px;
                border-radius: var(--radius);
            }

            .cta-panel .cta-btns .btn {
                width: 100%;
            }

            .footer-col {
                margin-bottom: 20px;
            }

            .footer-bottom {
                font-size: 12px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
    :root {
      --primary: #0e6b4d;
      --primary-dark: #0a5239;
      --primary-deep: #06402c;
      --primary-light: #e7f3ee;
      --accent: #d99a2b;
      --accent-dark: #c1841f;
      --accent-light: #fef6e8;
      --bg: #f7f6f3;
      --white: #ffffff;
      --text: #1f2925;
      --text-light: #5c6b65;
      --text-muted: #8a968f;
      --border: #e6e3dc;
      --radius-sm: 10px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
      --shadow-lg: 0 16px 44px rgba(0, 0, 0, 0.10);
      --transition: 0.3s ease;
      --container-w: 72rem;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

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

    a:hover,
    a:focus {
      color: var(--primary);
      outline: none;
    }

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

    button,
    input,
    select,
    textarea {
      font: inherit;
      border: none;
      background: none;
    }

    button {
      cursor: pointer;
    }

    ul,
    ol {
      list-style: none;
    }

    /* 容器 */
    .container {
      max-width: var(--container-w);
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    /* ===== 按钮 ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      font-weight: 600;
      border-radius: 999px;
      padding: 0.72rem 1.6rem;
      font-size: 0.95rem;
      border: 2px solid transparent;
      transition: all var(--transition);
      line-height: 1.4;
      letter-spacing: 0.02em;
    }

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

    .btn-primary:hover {
      background: var(--primary-dark);
      color: var(--white);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(14, 107, 77, 0.30);
    }

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

    .btn-accent:hover {
      background: var(--accent-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(217, 154, 43, 0.32);
    }

    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background: transparent;
    }

    .btn-outline:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
    }

    .btn-sm {
      padding: 0.5rem 1.25rem;
      font-size: 0.88rem;
    }

    .btn-lg {
      padding: 0.95rem 2.2rem;
      font-size: 1.05rem;
    }

    /* ===== 标签 / 徽章 ===== */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 0.82rem;
      font-weight: 600;
      padding: 0.3rem 0.85rem;
      border-radius: 999px;
      letter-spacing: 0.02em;
    }

    .badge-accent {
      background: var(--accent-light);
      color: var(--accent-dark);
    }

    .badge-icon {
      display: inline-flex;
      width: 1.35rem;
      height: 1.35rem;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      font-size: 0.70rem;
      flex-shrink: 0;
    }

    /* ===== 头部导航 ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .site-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      min-height: 4.4rem;
      padding: 0.5rem 0;
    }

    .site-logo {
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text);
      white-space: nowrap;
      letter-spacing: 0.02em;
    }

    .site-logo i {
      color: var(--primary);
      font-size: 1.5rem;
      background: var(--primary-light);
      width: 2.3rem;
      height: 2.3rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
    }

    .site-logo:hover {
      color: var(--primary);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 0.35rem;
      flex-wrap: wrap;
    }

    .main-nav a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-light);
      padding: 0.5rem 1.1rem;
      border-radius: 999px;
      transition: all var(--transition);
      white-space: nowrap;
    }

    .main-nav a:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
    }

    .main-nav a.active {
      background: var(--primary);
      color: #fff;
      font-weight: 600;
      box-shadow: 0 4px 14px rgba(14, 107, 77, 0.25);
    }

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }

    .nav-toggle {
      display: none;
      width: 2.5rem;
      height: 2.5rem;
      border-radius: 10px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 1.1rem;
      align-items: center;
      justify-content: center;
      transition: background var(--transition);
    }

    .nav-toggle:hover {
      background: var(--primary);
      color: #fff;
    }

    /* ===== 页面 Banner ===== */
    .page-hero {
      position: relative;
      background: var(--primary-deep) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      color: #fff;
      padding: 5.8rem 0 5.4rem;
      overflow: hidden;
    }

    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(4, 32, 24, 0.92) 0%, rgba(6, 48, 36, 0.78) 45%, rgba(8, 60, 45, 0.40) 100%);
    }

    .page-hero .hero-inner {
      position: relative;
      z-index: 2;
      max-width: 46rem;
    }

    .page-hero .hero-breadcrumb {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.75);
      margin-bottom: 1.2rem;
    }

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

    .page-hero .hero-breadcrumb i {
      font-size: 0.7rem;
      opacity: 0.7;
    }

    .page-hero h1 {
      font-size: clamp(2rem, 4.5vw, 3.2rem);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 1rem;
      letter-spacing: 0.02em;
    }

    .page-hero p {
      font-size: 1.06rem;
      color: rgba(255, 255, 255, 0.88);
      line-height: 1.8;
      max-width: 36rem;
    }

    .page-hero .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.6rem;
      margin-top: 1.6rem;
    }

    .page-hero .hero-tags .hero-tag {
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.22);
      color: #fff;
      padding: 0.35rem 1rem;
      border-radius: 999px;
      font-size: 0.85rem;
      backdrop-filter: blur(4px);
    }

    /* ===== 通用板块 ===== */
    .section {
      padding: 4.8rem 0;
    }

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

    .section-light {
      background: var(--primary-light);
    }

    .section-head {
      text-align: center;
      max-width: 42rem;
      margin: 0 auto 3rem;
    }

    .section-head .section-btn {
      display: inline-flex;
      justify-content: center;
      align-items: center;
      gap: 0.4rem;
      background: var(--primary-light);
      color: var(--primary-dark);
      border-radius: 999px;
      font-size: 0.82rem;
      font-weight: 700;
      padding: 0.35rem 1rem;
      margin-bottom: 1rem;
      letter-spacing: 0.04em;
    }

    .section-head h2 {
      font-size: clamp(1.6rem, 3vw, 2.3rem);
      font-weight: 800;
      line-height: 1.25;
      color: var(--text);
      margin-bottom: 0.8rem;
    }

    .section-head p {
      color: var(--text-light);
      font-size: 1rem;
      line-height: 1.7;
    }

    /* ===== 安全卡片 ===== */
    .security-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.4rem;
    }

    .security-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 1.8rem 1.5rem 1.6rem;
      transition: all var(--transition);
      box-shadow: var(--shadow-sm);
      position: relative;
      overflow: hidden;
    }

    .security-card::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--primary);
      opacity: 0;
      transition: opacity var(--transition);
    }

    .security-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(14, 107, 77, 0.2);
    }

    .security-card:hover::after {
      opacity: 1;
    }

    .security-card .card-icon {
      width: 3.2rem;
      height: 3.2rem;
      border-radius: 16px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 1.2rem;
    }

    .security-card h3 {
      font-size: 1.08rem;
      font-weight: 700;
      margin-bottom: 0.6rem;
    }

    .security-card p {
      font-size: 0.9rem;
      color: var(--text-light);
      line-height: 1.65;
    }

    /* ===== 图文区块 ===== */
    .feature-wrap {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      gap: 3rem;
      align-items: center;
    }

    .feature-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .feature-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 320px;
    }

    .feature-media::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(4, 32, 24, 0.25), transparent 45%);
    }

    .feature-content .feature-label {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      background: var(--accent-light);
      color: var(--accent-dark);
      font-size: 0.82rem;
      font-weight: 700;
      padding: 0.35rem 1rem;
      border-radius: 999px;
      margin-bottom: 1rem;
    }

    .feature-content h2 {
      font-size: clamp(1.6rem, 2.6vw, 2.1rem);
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 1rem;
      color: var(--text);
    }

    .feature-content p {
      color: var(--text-light);
      line-height: 1.8;
      margin-bottom: 1.2rem;
    }

    .feature-list {
      margin-top: 1.2rem;
    }

    .feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 0.75rem;
      padding: 0.55rem 0;
      font-size: 0.95rem;
      color: var(--text);
    }

    .feature-list li i {
      color: var(--primary);
      font-size: 1.05rem;
      margin-top: 0.15rem;
      flex-shrink: 0;
    }

    /* ===== 步骤板块 ===== */
    .steps-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      counter-reset: step-counter;
    }

    .step-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 2rem 1.5rem 1.7rem;
      position: relative;
      transition: all var(--transition);
      box-shadow: var(--shadow-sm);
    }

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

    .step-num {
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--primary-light);
      line-height: 1;
      margin-bottom: 1rem;
      letter-spacing: -0.04em;
    }

    .step-item h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.55rem;
    }

    .step-item p {
      font-size: 0.88rem;
      color: var(--text-light);
      line-height: 1.65;
    }

    /* ===== 数据统计 ===== */
    .stats-section {
      background: var(--primary-deep) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
      position: relative;
      padding: 4.2rem 0;
    }

    .stats-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(4, 32, 24, 0.86);
    }

    .stats-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      text-align: center;
    }

    .stat-item {
      color: #fff;
      padding: 1rem;
    }

    .stat-item .stat-num {
      font-size: clamp(2.4rem, 4vw, 3.4rem);
      font-weight: 800;
      color: var(--accent);
      line-height: 1.2;
      margin-bottom: 0.4rem;
    }

    .stat-item .stat-label {
      font-size: 0.95rem;
      color: rgba(255, 255, 255, 0.8);
      letter-spacing: 0.04em;
    }

    /* ===== 安全清单 ===== */
    .checklist-wrap {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 3rem;
      align-items: center;
    }

    .checklist-media {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .checklist-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 280px;
    }

    .checklist-content h2 {
      font-size: clamp(1.5rem, 2.4vw, 2rem);
      font-weight: 800;
      margin-bottom: 0.8rem;
    }

    .checklist-content > p {
      color: var(--text-light);
      margin-bottom: 1.6rem;
    }

    .check-item {
      display: flex;
      align-items: flex-start;
      gap: 0.9rem;
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 1rem 1.2rem;
      margin-bottom: 0.8rem;
      transition: all var(--transition);
    }

    .check-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .check-item .check-icon {
      width: 1.9rem;
      height: 1.9rem;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.85rem;
      flex-shrink: 0;
    }

    .check-item .check-text {
      flex: 1;
    }

    .check-item .check-text strong {
      font-size: 0.95rem;
      font-weight: 700;
      display: block;
      margin-bottom: 0.15rem;
    }

    .check-item .check-text span {
      font-size: 0.86rem;
      color: var(--text-light);
      line-height: 1.55;
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 46rem;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 0.9rem;
      overflow: hidden;
      transition: all var(--transition);
      box-shadow: var(--shadow-sm);
    }

    .faq-item:hover {
      border-color: rgba(14, 107, 77, 0.25);
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 1.15rem 1.4rem;
      cursor: pointer;
      font-weight: 600;
      font-size: 0.98rem;
      color: var(--text);
      list-style: none;
      transition: color var(--transition);
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary i {
      color: var(--primary);
      transition: transform var(--transition);
      flex-shrink: 0;
    }

    .faq-item[open] summary {
      color: var(--primary);
    }

    .faq-item[open] summary i {
      transform: rotate(45deg);
    }

    .faq-item .faq-body {
      padding: 0 1.4rem 1.2rem;
      color: var(--text-light);
      font-size: 0.94rem;
      line-height: 1.75;
      border-top: 1px dashed var(--border);
      padding-top: 1rem;
    }

    /* ===== CTA 板块 ===== */
    .cta-section {
      position: relative;
      background: var(--primary);
      padding: 4rem 0;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: -60%;
      right: -10%;
      width: 420px;
      height: 420px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
    }

    .cta-section::after {
      content: '';
      position: absolute;
      bottom: -50%;
      left: 5%;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.04);
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      color: #fff;
      max-width: 40rem;
      margin: 0 auto;
    }

    .cta-inner h2 {
      font-size: clamp(1.6rem, 3vw, 2.3rem);
      font-weight: 800;
      margin-bottom: 0.8rem;
    }

    .cta-inner p {
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 2rem;
      font-size: 1rem;
    }

    .cta-inner .btn:hover {
      color: var(--primary-dark);
      background: var(--primary-light);
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: #10201a;
      color: rgba(255, 255, 255, 0.75);
      padding: 4rem 0 0;
      font-size: 0.9rem;
    }

    .site-footer .grid-x {
      align-items: flex-start;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.8rem;
    }

    .footer-brand i {
      color: var(--accent);
      font-size: 1.4rem;
    }

    .footer-desc {
      color: rgba(255, 255, 255, 0.6);
      line-height: 1.7;
      max-width: 22rem;
      margin-bottom: 1rem;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 1rem;
      position: relative;
      padding-bottom: 0.55rem;
    }

    .footer-col h4::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 24px;
      height: 3px;
      border-radius: 2px;
      background: var(--accent);
    }

    .footer-col a {
      display: block;
      color: rgba(255, 255, 255, 0.62);
      padding: 0.28rem 0;
      transition: all var(--transition);
    }

    .footer-col a:hover {
      color: var(--accent);
      padding-left: 0.25rem;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 2.5rem;
      padding: 1.2rem 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.6rem;
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.45);
    }

    .footer-bottom a {
      color: rgba(255, 255, 255, 0.5);
    }

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

    /* ===== 响应式断点 ===== */
    @media screen and (max-width: 1024px) {
      .security-grid {
        grid-template-columns: repeat(2, 1fr);
      }

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

      .site-logo {
        font-size: 1.1rem;
      }

      .main-nav a {
        font-size: 0.85rem;
        padding: 0.4rem 0.85rem;
      }
    }

    @media screen and (max-width: 820px) {
      .site-header {
        position: sticky;
      }

      .site-nav {
        flex-wrap: wrap;
        position: relative;
        padding: 0.6rem 0;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        border-radius: 0 0 var(--radius-md) var(--radius-md);
        padding: 0.8rem 1rem 1.2rem;
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        align-items: stretch;
        gap: 0.45rem;
        z-index: 200;
        margin-top: 0.4rem;
      }

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

      .main-nav a {
        text-align: left;
        padding: 0.75rem 1.2rem;
        border-radius: 12px;
        font-size: 0.95rem;
      }

      .main-nav a.active {
        background: var(--primary);
        color: #fff;
      }

      .nav-cta .btn {
        display: none;
      }

      .feature-wrap {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .checklist-wrap {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

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

      .stat-item {
        padding: 0.6rem 0;
      }
    }

    @media screen and (max-width: 560px) {
      .section {
        padding: 3.2rem 0;
      }

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

      .steps-wrap {
        grid-template-columns: 1fr;
      }

      .page-hero {
        padding: 3.6rem 0;
      }

      .page-hero h1 {
        font-size: 1.7rem;
      }

      .site-logo {
        font-size: 0.98rem;
      }

      .site-logo i {
        width: 1.9rem;
        height: 1.9rem;
        font-size: 1.1rem;
      }

      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }

      .check-item {
        padding: 0.85rem 1rem;
      }

      .faq-item summary {
        padding: 1rem 1.1rem;
      }
    }

    /* 可访问性焦点 */
    a:focus-visible,
    button:focus-visible,
    summary:focus-visible {
      outline: 3px solid rgba(14, 107, 77, 0.4);
      outline-offset: 2px;
    }

/* roulang page: category3 */
:root {
    --brand: #1463ff;
    --brand-dark: #0d47c4;
    --brand-light: #eaf1ff;
    --gold: #fbbf24;
    --ink: #111827;
    --body: #334155;
    --muted: #64748b;
    --line: #e2e8f0;
    --bg: #f6f9fc;
    --card: #ffffff;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-md: 0 8px 24px rgba(17, 24, 39, .07);
    --shadow-lg: 0 18px 44px rgba(17, 24, 39, .12);
  }

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

  body {
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.7;
    color: var(--body);
    background: #ffffff;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
  }

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

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

  a:hover, a:focus {
    outline: none;
  }

  button:focus, a:focus {
    outline: 2px solid rgba(20, 99, 255, .5);
    outline-offset: 2px;
  }

  .container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  /* ===== 导航 ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }

  .site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 74px;
  }

  .site-logo {
    font-size: 1.18rem;
    font-weight: 800;
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    letter-spacing: .2px;
    white-space: nowrap;
  }

  .site-logo i {
    color: var(--brand);
    font-size: 1.4rem;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .main-nav a {
    padding: 8px 16px;
    border-radius: 999px;
    font-size: .92rem;
    font-weight: 500;
    color: var(--body);
    background: transparent;
    border: 1px solid transparent;
    transition: all .2s ease;
  }

  .main-nav a:hover {
    background: var(--brand-light);
    color: var(--brand);
  }

  .main-nav a.active {
    background: var(--brand);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(20, 99, 255, .28);
  }

  .nav-cta {
    flex-shrink: 0;
  }

  /* ===== 通用按钮 ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    border: none;
    font-size: .95rem;
    font-weight: 600;
    line-height: 1;
    padding: 14px 28px;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease;
  }

  .btn-sm {
    padding: 10px 20px;
    font-size: .88rem;
  }

  .btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
  }

  .btn-brand {
    background: var(--brand);
    color: #ffffff;
    box-shadow: 0 8px 20px rgba(20, 99, 255, .28);
  }

  .btn-brand:hover {
    background: var(--brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(20, 99, 255, .36);
    color: #ffffff;
  }

  .btn-accent {
    background: linear-gradient(135deg, #ffb800, #ff9500);
    color: #111827;
    box-shadow: 0 8px 20px rgba(255, 167, 38, .28);
  }

  .btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(255, 167, 38, .38);
    color: #111827;
  }

  .btn-ghost {
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, .6);
  }

  .btn-ghost:hover {
    background: rgba(255, 255, 255, .12);
    color: #ffffff;
    border-color: #ffffff;
  }

  /* ===== 首屏横幅 ===== */
  .page-hero {
    position: relative;
    background:
      linear-gradient(120deg, rgba(11, 18, 32, .82), rgba(13, 54, 128, .72)),
      url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    padding: 120px 0 100px;
    color: #ffffff;
    text-align: center;
  }

  .hero-kicker {
    display: inline-block;
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .22);
    color: #ffffff;
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: .08em;
    padding: 8px 18px;
    border-radius: 999px;
    margin-bottom: 30px;
  }

  .hero-title {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 18px;
    color: #ffffff;
    letter-spacing: .02em;
  }

  .hero-subtitle {
    font-size: 1.12rem;
    line-height: 1.8;
    max-width: 680px;
    margin: 0 auto 34px;
    color: rgba(255, 255, 255, .88);
  }

  .hero-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 34px;
  }

  .hero-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
  }

  .tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .22);
    color: #ffffff;
    font-size: .85rem;
    font-weight: 500;
    backdrop-filter: blur(4px);
  }

  /* ===== 通用板块 ===== */
  .section {
    padding: 90px 0;
  }

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

  .section-head {
    max-width: 720px;
    margin-bottom: 46px;
  }

  .section-label {
    display: inline-block;
    background: var(--brand-light);
    color: var(--brand);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .08em;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
  }

  .section-head h2 {
    font-size: clamp(1.7rem, 3vw, 2.2rem);
    font-weight: 800;
    color: var(--ink);
    line-height: 1.3;
    margin: 0 0 14px;
  }

  .section-head p {
    color: var(--muted);
    font-size: 1.02rem;
    line-height: 1.8;
    margin: 0;
  }

  /* ===== 数据统计条 ===== */
  .stats-bar {
    background: linear-gradient(135deg, #0b1220 0%, #10204a 100%);
    padding: 58px 0;
    border-top: 4px solid rgba(20, 99, 255, .5);
  }

  .stat-card {
    text-align: center;
    padding: 24px 16px;
    border-right: 1px solid rgba(255, 255, 255, .1);
  }

  .stat-card:last-child {
    border-right: none;
  }

  .stat-num {
    font-size: 2.6rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.2;
    margin-bottom: 6px;
  }

  .stat-num span {
    color: var(--gold);
    margin-right: 4px;
  }

  .stat-label {
    color: #94a3b8;
    font-size: .92rem;
  }

  /* ===== 模块卡片 ===== */
  .module-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 30px;
    height: 100%;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  }

  .module-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: #c7d7ff;
  }

  .module-icon {
    width: 58px;
    height: 58px;
    border-radius: 14px;
    background: var(--brand-light);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
  }

  .module-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 12px;
  }

  .module-card p {
    color: var(--muted);
    font-size: .95rem;
    line-height: 1.75;
    margin: 0 0 18px;
  }

  .module-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .module-list li {
    background: var(--bg);
    color: var(--body);
    font-size: .82rem;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 999px;
  }

  /* ===== 图文详解 ===== */
  .guide-media img {
    width: 100%;
    border-radius: 22px;
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    aspect-ratio: 4 / 3;
  }

  .guide-body h2 {
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    font-weight: 800;
    color: var(--ink);
    line-height: 1.3;
    margin: 16px 0 16px;
  }

  .guide-body > p {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 18px;
  }

  .check-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 0;
  }

  .check-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px dashed var(--line);
    font-size: .98rem;
    color: var(--body);
  }

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

  .check-list li i {
    color: var(--brand);
    font-size: 1rem;
    margin-top: 4px;
  }

  /* ===== 步骤清单 ===== */
  .step-item {
    position: relative;
    padding: 26px 28px 26px 88px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 16px;
    margin-bottom: 16px;
    transition: background-color .2s ease, box-shadow .2s ease;
  }

  .step-item:hover {
    background: var(--bg);
    box-shadow: var(--shadow-md);
  }

  .step-num {
    position: absolute;
    left: 26px;
    top: 26px;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--brand-light);
    color: var(--brand);
    font-weight: 800;
    font-size: 1.2rem;
  }

  .step-item h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 8px;
  }

  .step-item p {
    color: var(--muted);
    font-size: .95rem;
    line-height: 1.75;
    margin: 0;
  }

  /* ===== FAQ ===== */
  .faq-item {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .2s ease, box-shadow .2s ease;
  }

  .faq-item.active {
    border-color: #c7d7ff;
    box-shadow: var(--shadow-md);
  }

  .faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 20px 22px;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    cursor: pointer;
    text-align: left;
  }

  .faq-question i {
    color: var(--brand);
    font-size: 1.1rem;
    transition: transform .25s ease;
  }

  .faq-item.active .faq-question i {
    transform: rotate(180deg);
  }

  .faq-answer {
    display: none;
    padding: 0 22px 20px;
    color: var(--muted);
    font-size: .95rem;
    line-height: 1.8;
  }

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

  /* ===== CTA 区 ===== */
  .cta-section {
    padding: 80px 0;
  }

  .cta-card {
    background: linear-gradient(120deg, #0d47c4, #1463ff);
    border-radius: 24px;
    padding: 56px 48px;
    text-align: center;
    color: #ffffff;
    position: relative;
    overflow: hidden;
  }

  .cta-card::before {
    content: '';
    position: absolute;
    left: -40px;
    bottom: -60px;
    width: 180px;
    height: 180px;
    background: rgba(255, 255, 255, .07);
    border-radius: 50%;
  }

  .cta-card::after {
    content: '';
    position: absolute;
    right: -50px;
    top: -70px;
    width: 220px;
    height: 220px;
    background: rgba(255, 255, 255, .06);
    border-radius: 50%;
  }

  .cta-card h2 {
    color: #ffffff;
    font-size: clamp(1.7rem, 3vw, 2.3rem);
    font-weight: 800;
    margin: 0 0 14px;
  }

  .cta-card p {
    color: rgba(255, 255, 255, .85);
    font-size: 1.05rem;
    max-width: 620px;
    margin: 0 auto 28px;
  }

  .cta-card .btn {
    position: relative;
    z-index: 2;
  }

  /* ===== 页脚 ===== */
  .site-footer {
    background: #0b1220;
    color: #cbd5e1;
    padding: 60px 0 30px;
    position: relative;
  }

  .footer-brand {
    font-size: 1.3rem;
    font-weight: 800;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
  }

  .footer-brand i {
    color: var(--gold);
  }

  .footer-desc {
    font-size: .95rem;
    line-height: 1.8;
    color: #94a3b8;
    max-width: 420px;
    margin: 0;
  }

  .footer-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .footer-col h4 {
    color: #ffffff;
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 6px;
  }

  .footer-col a {
    color: #94a3b8;
    font-size: .92rem;
    transition: color .2s ease;
  }

  .footer-col a:hover {
    color: #ffffff;
  }

  .footer-bottom {
    margin-top: 44px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, .12);
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    color: #64748b;
    font-size: .85rem;
  }

  .footer-bottom a {
    color: #94a3b8;
  }

  .footer-bottom a:hover {
    color: #ffffff;
  }

  /* ===== 响应式 ===== */
  @media (max-width: 1024px) {
    .module-card {
      padding: 24px;
    }

    .step-item {
      padding-left: 76px;
    }

    .step-num {
      left: 20px;
    }
  }

  @media (max-width: 900px) {
    .site-nav {
      flex-wrap: wrap;
      gap: 12px;
    }

    .main-nav {
      order: 3;
      width: 100%;
      overflow-x: auto;
      padding-bottom: 10px;
      justify-content: flex-start;
      scrollbar-width: thin;
    }

    .main-nav a {
      white-space: nowrap;
    }

    .nav-cta {
      margin-left: auto;
    }

    .page-hero {
      padding: 90px 0 70px;
    }

    .section {
      padding: 70px 0;
    }

    .stats-bar {
      padding: 44px 0;
    }

    .stat-card {
      border-right: none;
    }
  }

  @media (max-width: 640px) {
    .site-logo {
      font-size: 1.05rem;
      gap: 8px;
    }

    .site-logo i {
      font-size: 1.2rem;
    }

    .main-nav a {
      padding: 7px 12px;
      font-size: .85rem;
    }

    .btn-sm {
      padding: 8px 14px;
      font-size: .82rem;
    }

    .page-hero {
      padding: 70px 0 56px;
    }

    .hero-title {
      font-size: 1.9rem;
    }

    .hero-subtitle {
      font-size: 1rem;
    }

    .hero-actions {
      flex-direction: column;
      align-items: center;
    }

    .hero-actions .btn {
      width: 100%;
      max-width: 260px;
    }

    .section {
      padding: 56px 0;
    }

    .cta-card {
      padding: 40px 24px;
    }

    .cta-card h2 {
      font-size: 1.6rem;
    }

    .step-item {
      padding: 20px 20px 20px 68px;
    }

    .step-num {
      left: 16px;
      top: 22px;
      width: 40px;
      height: 40px;
      font-size: 1rem;
      border-radius: 10px;
    }

    .stat-num {
      font-size: 2rem;
    }
  }

  @media (max-width: 520px) {
    .footer-bottom {
      flex-direction: column;
      align-items: center;
      text-align: center;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      transition: none !important;
      animation: none !important;
    }
  }