/* roulang page: index */
:root {
  --primary: #0a1f44;
  --primary-light: #142c5e;
  --secondary: #c9a96e;
  --accent: #d4af37;
  --bg: #f8f9fa;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-weak: #64748b;
  --border: #e2e8f0;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 60px;
  --spacing-2xl: 80px;
  --transition: 0.25s ease;
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
input, button, textarea { font-family: inherit; font-size: inherit; outline: none; }
button { cursor: pointer; border: none; background: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ---------- 导航 ---------- */
header.nav-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

header .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: -0.5px;
  white-space: nowrap;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.logo i { color: var(--secondary); font-size: 1.4rem; }

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--secondary);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--secondary); }
.nav-links a.active { color: var(--primary); font-weight: 700; }
.nav-links a.active::after { width: 100%; }
.nav-links a:hover::after { width: 100%; }

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  color: var(--primary);
}

.mobile-menu {
  display: none;
  background: white;
  border-top: 1px solid var(--border);
  padding: var(--spacing-sm) var(--spacing-md);
  flex-direction: column;
  gap: var(--spacing-sm);
}
.mobile-menu a { font-weight: 500; padding: 6px 0; display: block; }
.mobile-menu a.active { color: var(--secondary); font-weight: 700; }

/* ---------- Hero 大图评测 ---------- */
.hero {
  background: linear-gradient(135deg, rgba(10,31,68,0.84), rgba(20,44,94,0.9)),
              url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: var(--spacing-2xl) var(--spacing-md);
  color: #fff;
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: 780px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}
.hero h1 span { color: var(--secondary); }

.hero .hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
  flex-wrap: wrap;
}

.stat-item {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  min-width: 130px;
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  font-size: 0.85rem;
  opacity: 0.9;
}

.hero-badge {
  display: inline-block;
  background: var(--secondary);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.5px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  background: var(--secondary);
  color: var(--primary);
}
.btn:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(201,169,110,0.4);
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--secondary);
  color: #fff;
}
.btn-outline:hover { background: var(--secondary); color: var(--primary); }

/* ---------- 板块通用 ---------- */
.section {
  padding: var(--spacing-xl) 0;
}

.section-title {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--primary);
}

.section-title span {
  color: var(--secondary);
  position: relative;
}
.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--secondary);
  margin: 12px auto 0;
  border-radius: 2px;
}

/* ---------- 分类入口卡片 ---------- */
.category-grid {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-md);
}

.category-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  width: 340px;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.category-card img {
  height: 200px;
  object-fit: cover;
  width: 100%;
}
.category-card-body {
  padding: var(--spacing-md);
}
.category-card h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
  color: var(--primary);
}
.category-card p {
  color: var(--text-weak);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
}
.category-card .btn { margin-top: auto; width: fit-content; }

/* ---------- 最新资讯列表（CMS） ---------- */
.news-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.news-item {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-md);
  transition: box-shadow var(--transition);
  display: flex;
  gap: var(--spacing-sm);
}
.news-item:hover { box-shadow: var(--shadow-md); }
.news-item img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}
.news-item-content h4 {
  font-size: 1rem;
  margin-bottom: 4px;
  color: var(--text);
}
.news-item-content p {
  font-size: 0.82rem;
  color: var(--text-weak);
  line-height: 1.4;
}

/* ---------- 深色对比区块 ---------- */
.dark-section {
  background: var(--primary);
  color: #fff;
  padding: var(--spacing-xl) 0;
}

.dark-section .section-title {
  color: #fff;
}
.compare-table {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}
.compare-card {
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
  backdrop-filter: blur(8px);
}
.compare-card i {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 12px;
}
.compare-card h4 { font-size: 1.2rem; margin-bottom: 6px; }

/* ---------- 媒体引用 ---------- */
.testimonial-track {
  display: flex;
  gap: var(--spacing-lg);
  overflow-x: auto;
  padding-bottom: var(--spacing-sm);
  scroll-snap-type: x mandatory;
}
.testimonial-card {
  min-width: 280px;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  scroll-snap-align: start;
  flex-shrink: 0;
}
.testimonial-card .quote {
  font-style: italic;
  color: var(--text-weak);
  margin-bottom: 12px;
}
.testimonial-card .author {
  font-weight: 600;
  color: var(--primary);
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}
.faq-item h4 {
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--primary);
}
.faq-item p {
  color: var(--text-weak);
  font-size: 0.9rem;
}

/* ---------- CTA ---------- */
.cta-section {
  background: linear-gradient(105deg, #0a1f44 20%, #142c5e);
  color: white;
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
}
.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}
.cta-section .btn {
  margin-top: var(--spacing-sm);
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--primary);
  color: rgba(255,255,255,0.8);
  padding: var(--spacing-lg) var(--spacing-md);
  font-size: 0.9rem;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}
.footer-links a {
  margin-left: var(--spacing-md);
  color: rgba(255,255,255,0.7);
}
.footer-links a:hover { color: var(--secondary); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero h1 { font-size: 2rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
  .mobile-menu.active { display: flex; }
  .hero-stats { gap: var(--spacing-md); }
  .category-grid { flex-direction: column; align-items: center; }
  .news-list { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .hero { padding: var(--spacing-lg) var(--spacing-sm); }
  .section-title { font-size: 1.5rem; }
}

/* roulang page: article */
:root {
      --primary: #1a1c2e;
      --accent: #d4af37;
      --accent-light: #f0e6c5;
      --text: #2d2d2d;
      --text-light: #6b7280;
      --bg: #f8f9fa;
      --white: #ffffff;
      --border: #e9edf2;
      --radius: 12px;
      --radius-sm: 8px;
      --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.1);
      --header-height: 72px;
    }

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

    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    /* 导航 */
    .nav-header {
      background: var(--white);
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(10px);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: var(--header-height);
    }

    .logo {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary);
      display: flex;
      align-items: center;
      gap: 8px;
      letter-spacing: -0.5px;
    }

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

    .nav-links {
      list-style: none;
      display: flex;
      gap: 36px;
    }

    .nav-links a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-light);
      position: relative;
      padding: 6px 0;
      transition: color 0.2s;
    }

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

    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.6rem;
      color: var(--primary);
      cursor: pointer;
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      background: var(--white);
      border-top: 1px solid var(--border);
      padding: 16px 24px;
    }

    .mobile-menu a {
      padding: 12px 0;
      font-size: 1rem;
      font-weight: 500;
      border-bottom: 1px solid var(--border);
      color: var(--text);
    }

    .mobile-menu a:last-child {
      border-bottom: none;
    }

    /* 文章头部区 */
    .article-hero {
      background: linear-gradient(135deg, rgba(26, 28, 46, 0.92), rgba(26, 28, 46, 0.8)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      padding: 90px 0 70px;
      color: var(--white);
      text-align: center;
    }

    .article-hero .breadcrumb {
      font-size: 0.9rem;
      color: rgba(255,255,255,0.7);
      margin-bottom: 16px;
    }

    .article-hero .breadcrumb a {
      color: var(--accent-light);
      transition: color 0.2s;
    }

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

    .article-hero .meta-cat {
      display: inline-block;
      background: var(--accent);
      color: var(--primary);
      font-size: 0.8rem;
      font-weight: 600;
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }

    .article-hero h1 {
      font-size: 2.6rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 20px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .article-hero .meta-time {
      font-size: 0.95rem;
      color: rgba(255,255,255,0.75);
    }

    /* 正文区 */
    .article-main {
      margin-top: -40px;
      position: relative;
      z-index: 2;
    }

    .article-content-card {
      background: var(--white);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 48px;
      margin-bottom: 48px;
    }

    .article-featured-img {
      margin-bottom: 32px;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    }

    .article-featured-img img {
      width: 100%;
      object-fit: cover;
    }

    .article-body {
      font-size: 1.05rem;
      line-height: 1.85;
      color: #374151;
    }

    .article-body p {
      margin-bottom: 1.2em;
    }

    .article-body h2, .article-body h3 {
      color: var(--primary);
      margin-top: 1.8em;
      margin-bottom: 0.6em;
    }

    .not-found {
      text-align: center;
      padding: 80px 0;
    }

    .not-found h2 {
      font-size: 2rem;
      color: var(--primary);
      margin-bottom: 16px;
    }

    .not-found a {
      color: var(--accent);
      font-weight: 600;
      border-bottom: 2px solid var(--accent);
      transition: opacity 0.2s;
    }

    .not-found a:hover {
      opacity: 0.8;
    }

    /* 评分/指标卡 */
    .metrics-card {
      background: var(--white);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 32px 40px;
      display: flex;
      gap: 40px;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .metric-item {
      text-align: center;
    }

    .metric-value {
      font-size: 2.4rem;
      font-weight: 700;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 8px;
    }

    .metric-label {
      font-size: 0.9rem;
      color: var(--text-light);
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    /* 相关阅读 */
    .related-section {
      margin-bottom: 64px;
    }

    .section-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 32px;
      padding-bottom: 12px;
      border-bottom: 2px solid var(--accent);
      display: inline-block;
    }

    .posts-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

    .post-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform 0.25s, box-shadow 0.25s;
      cursor: pointer;
    }

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

    .post-card-img {
      height: 180px;
      overflow: hidden;
    }

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

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

    .post-card-body {
      padding: 20px;
    }

    .post-card-body h3 {
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 8px;
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .post-card-desc {
      font-size: 0.9rem;
      color: var(--text-light);
      line-height: 1.5;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    /* CTA */
    .cta-section {
      background: linear-gradient(135deg, #1a1c2e 0%, #2a2d44 100%);
      border-radius: var(--radius);
      padding: 60px 40px;
      text-align: center;
      color: white;
      margin-bottom: 48px;
    }

    .cta-section h3 {
      font-size: 1.8rem;
      margin-bottom: 16px;
    }

    .cta-section p {
      font-size: 1.05rem;
      opacity: 0.85;
      margin-bottom: 28px;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    .btn {
      display: inline-block;
      padding: 14px 36px;
      border-radius: 30px;
      font-weight: 600;
      font-size: 1rem;
      transition: all 0.2s;
      letter-spacing: 0.3px;
    }

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

    .btn-accent:hover {
      background: #c9a02b;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(212,175,55,0.3);
    }

    /* 页脚 */
    .footer {
      background: var(--primary);
      color: rgba(255,255,255,0.7);
      padding: 36px 0;
    }

    .footer-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.9rem;
    }

    .footer-links {
      display: flex;
      gap: 24px;
    }

    .footer-links a {
      color: rgba(255,255,255,0.7);
      transition: color 0.2s;
    }

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

    /* 响应式 */
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .article-hero h1 {
        font-size: 1.8rem;
        padding: 0 16px;
      }
      .article-content-card {
        padding: 24px;
      }
      .metrics-card {
        gap: 20px;
        padding: 24px;
      }
      .metric-value {
        font-size: 2rem;
      }
      .posts-grid {
        grid-template-columns: 1fr;
      }
      .footer-inner {
        flex-direction: column;
        text-align: center;
      }
    }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #1a2744;
            --primary-light: #243356;
            --accent: #c8944a;
            --accent-light: #d4a85c;
            --accent-pale: #faf3e6;
            --bg: #fafaf7;
            --bg-alt: #f2f0eb;
            --surface: #ffffff;
            --text: #1f2937;
            --text-strong: #111827;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border: #e5e7eb;
            --border-light: #f0f0ed;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --nav-height: 68px;
        }

        /* ============ Reset & Base ============ */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }
        ul, ol {
            list-style: none;
        }

        /* ============ 容器 ============ */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
        }

        /* ============ 导航 - 极简高端文字导航 ============ */
        .nav-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .nav-header.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .logo i {
            color: var(--accent);
            font-size: 1.1rem;
        }
        .logo:hover {
            opacity: 0.82;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
        }
        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            position: relative;
            padding: 6px 0;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width var(--transition-fast);
        }
        .nav-links a:hover {
            color: var(--text-strong);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            width: 100%;
            background: var(--accent);
        }
        .mobile-menu-btn {
            display: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-btn:hover {
            background: var(--bg-alt);
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            flex-direction: column;
            padding: 12px 0;
            gap: 2px;
            box-shadow: var(--shadow-lg);
            z-index: 999;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            transition: background var(--transition-fast), color var(--transition-fast);
            border-left: 3px solid transparent;
        }
        .mobile-menu a:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }
        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
            border-left-color: var(--accent);
            background: var(--accent-pale);
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-inner {
                padding: 0 18px;
            }
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-bar {
            background: var(--surface);
            border-bottom: 1px solid var(--border-light);
            padding: 14px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            color: var(--border);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--text-strong);
            font-weight: 500;
        }

        /* ============ 分类 Banner ============ */
        .category-banner {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,39,68,0.88) 0%, rgba(26,39,68,0.72) 50%, rgba(0,0,0,0.5) 100%);
            z-index: 1;
        }
        .category-banner .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 60px 0;
        }
        .category-banner .banner-eyebrow {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-light);
            margin-bottom: 12px;
            padding: 6px 14px;
            border: 1px solid rgba(200,148,74,0.4);
            border-radius: 20px;
            background: rgba(200,148,74,0.1);
        }
        .category-banner h1 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 14px;
            max-width: 700px;
        }
        .category-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.82);
            max-width: 560px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .category-banner {
                min-height: 260px;
            }
            .category-banner h1 {
                font-size: 2rem;
            }
            .category-banner .banner-desc {
                font-size: 0.95rem;
            }
            .category-banner .banner-content {
                padding: 40px 0;
            }
        }

        /* ============ 板块通用 ============ */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .section-dark {
            background: var(--primary);
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }
        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 500px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-dark .section-header h2 {
            color: #fff;
        }
        .section-dark .section-header .section-subtitle {
            color: rgba(255,255,255,0.7);
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        /* ============ 统计指标卡 ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .stat-card .stat-icon {
            font-size: 1.8rem;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .stat-card .stat-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-card .stat-value {
                font-size: 1.8rem;
            }
        }

        /* ============ 步骤流程 ============ */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 800px;
            margin: 0 auto;
        }
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 24px 28px;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow);
            transform: translateX(3px);
        }
        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: 0;
        }
        .step-item:nth-child(even) .step-number {
            background: var(--accent);
        }
        .step-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 6px;
        }
        .step-content p {
            font-size: 0.94rem;
            color: var(--text-muted);
            line-height: 1.65;
        }
        .step-content .step-tip {
            display: inline-block;
            margin-top: 8px;
            font-size: 0.82rem;
            color: var(--accent);
            background: var(--accent-pale);
            padding: 4px 10px;
            border-radius: 14px;
            font-weight: 500;
        }
        @media (max-width: 520px) {
            .step-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px 16px;
            }
            .step-number {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
        }

        /* ============ 指南卡片网格 ============ */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .guide-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .guide-card .card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .guide-card:hover .card-img img {
            transform: scale(1.04);
        }
        .guide-card .card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 14px;
            background: var(--accent);
            color: #fff;
            letter-spacing: 0.03em;
            z-index: 2;
        }
        .guide-card .card-body {
            padding: 20px 18px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .guide-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }
        .guide-card .card-body .card-meta {
            margin-top: 14px;
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .guide-card .card-body .card-meta i {
            color: var(--accent);
            font-size: 0.7rem;
        }
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ============ 信息提示区块 ============ */
        .info-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }
        .info-block .info-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
        }
        .info-block .info-text p {
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 10px;
        }
        .info-block .info-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .info-block .info-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 16px;
        }
        .info-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.94rem;
            color: var(--text);
            padding: 12px 16px;
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent);
        }
        .info-list li i {
            color: var(--accent);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .info-block {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .info-block .info-text h3 {
                font-size: 1.3rem;
            }
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: box-shadow var(--transition), border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-xs);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-strong);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.94rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item[open] {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-item[open] summary {
            color: var(--primary);
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--primary);
            color: #fff;
            text-align: center;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(200,148,74,0.12);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255,255,255,0.04);
            pointer-events: none;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.78);
            margin-bottom: 28px;
            line-height: 1.6;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 28px;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            border: 2px solid var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            box-shadow: 0 6px 24px rgba(200,148,74,0.35);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.5);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.08);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 15px 38px;
            font-size: 1rem;
            border-radius: 30px;
        }
        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.94rem;
            }
            .btn-lg {
                padding: 13px 28px;
                font-size: 0.94rem;
            }
        }

        /* ============ 页脚 ============ */
        .footer {
            background: #111827;
            color: rgba(255,255,255,0.7);
            padding: 36px 0;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-inner > div:first-child {
            font-size: 0.9rem;
            letter-spacing: 0.02em;
        }
        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .footer-links a {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.55);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-light);
        }
        @media (max-width: 520px) {
            .footer-inner {
                flex-direction: column;
                text-align: center;
                padding: 0 18px;
            }
            .footer-links {
                justify-content: center;
                gap: 16px;
            }
        }