/* roulang page: index */
:root {
  --c-primary: #1556a0;
  --c-primary-dark: #0c3a70;
  --c-primary-light: #eaf1fb;
  --c-accent: #d9a441;
  --c-accent-dark: #b57f2a;
  --c-accent-light: #fff7e6;
  --c-bg: #f6f8fc;
  --c-bg-dark: #0a1a30;
  --c-text: #16283b;
  --c-text-weak: #65788c;
  --c-border: #e3e9f0;
  --c-white: #ffffff;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(12, 45, 85, 0.05);
  --shadow-md: 0 10px 30px rgba(12, 45, 85, 0.08);
  --shadow-lg: 0 20px 55px rgba(12, 45, 85, 0.14);
  --transition: all 0.3s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button, input { outline: none; border: none; background: none; }
.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }

.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 16px;
  pointer-events: none;
}
.site-header .container { pointer-events: auto; }
.header-nav {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 60px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow-md);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-logo {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--c-text);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.3px;
  white-space: nowrap;
}
.brand-dot {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 15px;
  flex-shrink: 0;
}
.navbar { padding: 0; }
.navbar .nav-link {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 40px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--c-text-weak);
  transition: var(--transition);
}
.navbar .nav-link:hover,
.navbar .nav-link.active {
  background: var(--c-primary-light);
  color: var(--c-primary);
}
.navbar-toggler {
  border: none;
  padding: 8px 10px;
  border-radius: 10px;
}
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='rgba(21,86,160,1)' stroke-width='2' linecap='round' linejoin='round' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.hero-section {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  padding: 150px 0 90px;
  background-image: linear-gradient(135deg, rgba(7, 28, 54, 0.93), rgba(15, 50, 90, 0.82)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 40px;
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  margin-bottom: 22px;
}
.hero-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.hero-subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.88);
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.btn-primary-custom {
  background: var(--c-accent);
  color: var(--c-bg-dark);
  border: none;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary-custom:hover {
  background: var(--c-accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(185, 100, 15, 0.3);
}
.btn-outline-custom {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.5);
  padding: 13px 30px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  cursor: pointer;
}
.btn-outline-custom:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 42px; font-size: 1rem; }

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: var(--c-primary-light);
  color: var(--c-primary);
  border-radius: 40px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-header h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 12px;
}
.section-header p {
  color: var(--c-text-weak);
  font-size: 0.98rem;
  line-height: 1.7;
}

.core-section { padding: 90px 0; }
.feature-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: var(--c-primary-light);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: var(--c-text); }
.feature-card p { font-size: 0.9rem; color: var(--c-text-weak); line-height: 1.7; margin-bottom: 0; }

.category-section {
  padding: 90px 0;
  background: var(--c-white);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}
.category-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.category-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.category-card-img { position: relative; flex: 1 1 400px; min-height: 260px; overflow: hidden; }
.category-card-img img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.category-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 30, 55, 0.25), transparent 70%);
}
.category-card-body { flex: 1 1 360px; padding: 40px; }
.category-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--c-accent-light);
  color: var(--c-accent-dark);
  border-radius: 40px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.category-card-body h2 { font-size: 1.6rem; font-weight: 800; margin-bottom: 12px; }
.category-card-body p { color: var(--c-text-weak); font-size: 0.95rem; line-height: 1.8; margin-bottom: 20px; }
.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-primary);
  font-weight: 700;
  font-size: 0.92rem;
  transition: var(--transition);
}
.category-link:hover { gap: 12px; color: var(--c-primary-dark); }

.news-section { padding: 90px 0; }
.article-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.article-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.article-cover { position: relative; height: 190px; overflow: hidden; background: var(--c-primary-light); }
.article-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.article-card:hover .article-cover img { transform: scale(1.05); }
.article-category {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 14px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--c-primary);
  border-radius: 30px;
  font-size: 0.78rem;
  font-weight: 700;
  backdrop-filter: blur(6px);
}
.article-body { padding: 24px 24px 22px; }
.article-body h3 {
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 48px;
}
.article-body p {
  font-size: 0.88rem;
  color: var(--c-text-weak);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--c-text-weak);
  border-top: 1px solid var(--c-border);
  padding-top: 14px;
}
.article-meta span:last-child { color: var(--c-primary); font-weight: 600; }
.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: var(--c-white);
  border: 1px dashed var(--c-border);
  border-radius: var(--radius-lg);
  color: var(--c-text-weak);
  font-size: 0.95rem;
}

.process-section {
  padding: 90px 0;
  background: var(--c-bg-dark);
  color: #fff;
}
.process-section .section-tag { background: rgba(255, 255, 255, 0.12); color: var(--c-accent); }
.process-section .section-header h2 { color: #fff; }
.process-section .section-header p { color: rgba(255, 255, 255, 0.65); }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 10px;
}
.process-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}
.process-item:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(217, 164, 65, 0.5); transform: translateY(-4px); }
.process-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-dark));
  color: var(--c-bg-dark);
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 18px;
}
.process-item h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.process-item p { font-size: 0.86rem; color: rgba(255, 255, 255, 0.66); line-height: 1.7; margin-bottom: 0; }

.stats-section { padding: 60px 0; background: var(--c-primary); }
.stats-wrapper {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item { text-align: center; color: #fff; }
.stat-num {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 4px;
  font-family: "Segoe UI", "PingFang SC", sans-serif;
}
.stat-label { font-size: 0.88rem; opacity: 0.85; font-weight: 500; }

.faq-section { padding: 90px 0; }
.accordion-item {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.accordion-button {
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-text);
  padding: 20px 24px;
  background: var(--c-white);
  box-shadow: none;
}
.accordion-button:not(.collapsed) {
  color: var(--c-primary);
  background: var(--c-primary-light);
}
.accordion-button:focus { box-shadow: none; border-color: var(--c-border); }
.accordion-button::after { background-size: 16px; }
.accordion-body { padding: 8px 24px 24px; color: var(--c-text-weak); font-size: 0.92rem; line-height: 1.8; }

.cta-section {
  position: relative;
  padding: 100px 0;
  text-align: center;
  background-image: linear-gradient(135deg, rgba(10, 32, 60, 0.92), rgba(18, 58, 98, 0.85)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.cta-section h2 { font-size: clamp(1.5rem, 2.5vw, 2.2rem); font-weight: 800; margin-bottom: 16px; }
.cta-section p { font-size: 1rem; color: rgba(255, 255, 255, 0.85); max-width: 560px; margin: 0 auto 30px; line-height: 1.8; }
.cta-section .btn-primary-custom { background: var(--c-accent); color: var(--c-bg-dark); }
.cta-section .btn-primary-custom:hover { background: var(--c-accent-dark); color: #fff; }

.site-footer { background: var(--c-bg-dark); color: rgba(255, 255, 255, 0.7); padding: 60px 0 0; }
.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand { flex: 1 1 360px; }
.footer-logo {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand p { font-size: 0.88rem; line-height: 1.8; max-width: 420px; color: rgba(255, 255, 255, 0.6); }
.footer-links { flex: 0 1 200px; }
.footer-title {
  display: block;
  font-size: 0.92rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--c-accent); padding-left: 6px; }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 1024px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-wrapper { grid-template-columns: repeat(2, 1fr); }
  .hero-section { min-height: 520px; }
}
@media (max-width: 768px) {
  .site-header { top: 10px; }
  .header-nav { padding: 10px 16px; }
  .brand-logo { font-size: 0.92rem; }
  .navbar-collapse { padding-top: 14px; }
  .navbar .nav-link { padding: 10px 18px; }
  .hero-section { padding: 130px 0 60px; }
  .hero-title { font-size: 2.1rem; }
  .core-section, .news-section, .process-section, .faq-section { padding: 60px 0; }
  .category-section { padding: 60px 0; }
  .category-card-img { min-height: 220px; position: static; }
  .category-card-img img { position: static; height: auto; }
  .category-card-body { padding: 28px; }
  .footer-top { flex-direction: column; gap: 30px; }
}
@media (max-width: 520px) {
  .process-grid { grid-template-columns: 1fr; }
  .stats-wrapper { grid-template-columns: 1fr 1fr; }
  .section-header h2 { font-size: 1.5rem; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { text-align: center; justify-content: center; }
  .footer-brand { flex: 1 1 100%; }
}

/* roulang page: category1 */
:root {
      --primary: #c8102e;
      --primary-light: #e63a55;
      --primary-dark: #9b0e24;
      --primary-rgb: 200, 16, 46;
      --accent: #f5b700;
      --accent-rgb: 245, 183, 0;
      --dark: #0f1222;
      --dark-soft: #171a2e;
      --bg: #f7f8fb;
      --bg-soft: #ffffff;
      --text: #1a1d29;
      --text-muted: #5f6473;
      --border: #e7e9f0;
      --radius-lg: 22px;
      --radius-md: 14px;
      --radius-sm: 8px;
      --shadow-sm: 0 2px 10px rgba(0, 0, 0, .05);
      --shadow-md: 0 8px 30px rgba(0, 0, 0, .08);
      --shadow-lg: 0 24px 60px rgba(0, 0, 0, .12);
      --transition: all .3s ease;
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 100px;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    button {
      font-family: inherit;
    }

    .container {
      max-width: 1200px;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* ========== 悬浮胶囊导航 ========== */
    .site-header {
      position: sticky;
      top: 14px;
      z-index: 1050;
      padding: 0 16px;
      pointer-events: none;
    }

    .site-header .container {
      pointer-events: auto;
    }

    .header-nav {
      background: rgba(255, 255, 255, .92);
      -webkit-backdrop-filter: blur(18px);
      backdrop-filter: blur(18px);
      border: 1px solid rgba(255, 255, 255, .75);
      border-radius: 60px;
      padding: 10px 28px;
      box-shadow: 0 10px 38px rgba(0, 0, 0, .08);
      transition: var(--transition);
    }

    .header-nav.scrolled {
      background: rgba(255, 255, 255, .96);
      box-shadow: 0 16px 48px rgba(0, 0, 0, .1);
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.12rem;
      font-weight: 800;
      color: var(--dark);
      letter-spacing: -.3px;
      white-space: nowrap;
    }

    .brand-dot {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      font-size: .95rem;
      box-shadow: 0 4px 14px rgba(200, 16, 46, .35);
      flex-shrink: 0;
    }

    .header-nav .navbar-nav .nav-link {
      font-weight: 600;
      font-size: .95rem;
      padding: 8px 20px;
      border-radius: 50px;
      color: var(--text-muted);
      position: relative;
      transition: var(--transition);
    }

    .header-nav .navbar-nav .nav-link:hover {
      color: var(--primary);
      background: rgba(200, 16, 46, .06);
    }

    .header-nav .navbar-nav .nav-link.active {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 6px 20px rgba(200, 16, 46, .3);
    }

    .navbar-toggler {
      border: none;
      padding: 8px 12px;
      border-radius: 12px;
      background: rgba(200, 16, 46, .07);
      transition: var(--transition);
    }

    .navbar-toggler:hover {
      background: rgba(200, 16, 46, .12);
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 3px rgba(200, 16, 46, .25);
    }

    .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(20,23,34,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }

    /* ========== Banner ========== */
    .page-banner {
      position: relative;
      min-height: 520px;
      display: flex;
      align-items: center;
      border-radius: 0 0 44px 44px;
      overflow: hidden;
      margin: 0 0 80px;
    }

    .banner-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
    }

    .banner-bg::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(128deg, rgba(15, 18, 34, .9) 0%, rgba(30, 18, 28, .75) 55%, rgba(200, 16, 46, .45) 100%);
    }

    .page-banner .container {
      position: relative;
      z-index: 2;
      padding-top: 72px;
      padding-bottom: 72px;
    }

    .breadcrumb-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: .88rem;
      color: rgba(255, 255, 255, .72);
      margin-bottom: 20px;
      flex-wrap: wrap;
    }

    .breadcrumb-nav a {
      color: rgba(255, 255, 255, .72);
    }

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

    .breadcrumb-nav i {
      font-size: .72rem;
      color: rgba(255, 255, 255, .45);
    }

    .page-banner h1 {
      font-size: clamp(2rem, 5vw, 3.4rem);
      font-weight: 800;
      color: #fff;
      line-height: 1.2;
      letter-spacing: -1px;
      margin-bottom: 18px;
    }

    .page-banner .lead {
      font-size: clamp(1rem, 1.8vw, 1.2rem);
      color: rgba(255, 255, 255, .82);
      max-width: 640px;
      line-height: 1.75;
      margin-bottom: 30px;
    }

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

    .btn {
      border-radius: 50px;
      font-weight: 600;
      padding: 12px 28px;
      transition: var(--transition);
    }

    .btn-lg {
      padding: 14px 34px;
      font-size: 1rem;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      border: none;
      color: #fff;
      box-shadow: 0 10px 26px rgba(200, 16, 46, .3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 34px rgba(200, 16, 46, .38);
      color: #fff;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary-dark));
    }

    .btn-outline-light {
      border: 2px solid rgba(255, 255, 255, .7);
      color: #fff;
      background: transparent;
      padding: 12px 28px;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, .14);
      border-color: #fff;
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-outline-primary {
      border: 2px solid rgba(200, 16, 46, .4);
      color: var(--primary);
      background: transparent;
    }

    .btn-outline-primary:hover {
      background: rgba(200, 16, 46, .06);
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .btn:focus,
    .btn-primary:focus,
    .btn-outline-light:focus {
      box-shadow: 0 0 0 4px rgba(200, 16, 46, .25);
      outline: none;
    }

    /* ========== 通用板块标题 ========== */
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(200, 16, 46, .08);
      color: var(--primary);
      font-weight: 700;
      font-size: .83rem;
      letter-spacing: 1px;
      padding: 6px 18px;
      border-radius: 50px;
      margin-bottom: 16px;
    }

    .section-tag i {
      font-size: .8rem;
    }

    .section-title {
      font-size: clamp(1.7rem, 3.2vw, 2.4rem);
      font-weight: 800;
      color: var(--dark);
      line-height: 1.25;
      letter-spacing: -.5px;
      margin-bottom: 14px;
    }

    .section-subtitle {
      color: var(--text-muted);
      font-size: 1.02rem;
      max-width: 640px;
      line-height: 1.75;
    }

    .text-center .section-subtitle {
      margin-left: auto;
      margin-right: auto;
    }

    /* ========== 板块间距 ========== */
    .section {
      padding: 88px 0;
    }

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

    .section-muted {
      background: #f1f2f7;
    }

    /* ========== 分类介绍 ========== */
    .intro-section {
      padding: 90px 0 100px;
      background: var(--bg);
    }

    .intro-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 60px;
      align-items: center;
    }

    .intro-text .section-title {
      margin-bottom: 20px;
    }

    .intro-text p {
      color: var(--text-muted);
      font-size: 1.02rem;
      line-height: 1.8;
      margin-bottom: 22px;
    }

    .intro-list {
      list-style: none;
      padding: 0;
      margin: 24px 0 0;
    }

    .intro-list li {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 9px 0;
      color: var(--text);
      font-weight: 500;
      font-size: .97rem;
    }

    .intro-list li i {
      width: 26px;
      height: 26px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(200, 16, 46, .08);
      color: var(--primary);
      border-radius: 50%;
      font-size: .8rem;
      flex-shrink: 0;
    }

    .intro-visual {
      background: linear-gradient(145deg, #ffffff, #f2f4f9);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      box-shadow: var(--shadow-md);
    }

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

    .stat-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      transition: var(--transition);
    }

    .stat-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: rgba(200, 16, 46, .25);
    }

    .stat-item .num {
      font-size: 1.9rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-item .label {
      font-size: .86rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* ========== 登录流程 ========== */
    .steps-section {
      padding: 92px 0;
      background: var(--bg-soft);
      border-radius: 0;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 24px;
      margin-top: 48px;
    }

    .step-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      position: relative;
      transition: var(--transition);
    }

    .step-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(200, 16, 46, .2);
    }

    .step-card .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      font-weight: 800;
      font-size: 1.1rem;
      margin-bottom: 20px;
      box-shadow: 0 8px 20px rgba(200, 16, 46, .28);
    }

    .step-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .step-card p {
      font-size: .88rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 0;
    }

    .step-card .step-arrow {
      position: absolute;
      top: 50%;
      right: -20px;
      transform: translateY(-50%);
      color: var(--primary);
      font-size: 1.2rem;
      opacity: .5;
      z-index: 2;
    }

    /* ========== 安全提示 ========== */
    .tips-section {
      position: relative;
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      background-attachment: fixed;
      padding: 100px 0;
    }

    .tips-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(15, 18, 34, .93), rgba(18, 14, 28, .88));
    }

    .tips-section .container {
      position: relative;
      z-index: 2;
    }

    .tips-section .section-title {
      color: #fff;
    }

    .tips-section .section-subtitle {
      color: rgba(255, 255, 255, .75);
    }

    .tips-section .section-tag {
      background: rgba(245, 183, 0, .15);
      color: var(--accent);
    }

    .tips-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 48px;
    }

    .tip-card {
      background: rgba(255, 255, 255, .07);
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      transition: var(--transition);
    }

    .tip-card:hover {
      background: rgba(255, 255, 255, .12);
      border-color: rgba(255, 255, 255, .25);
      transform: translateY(-4px);
    }

    .tip-card .tip-icon {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      background: rgba(245, 183, 0, .15);
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      margin-bottom: 18px;
    }

    .tip-card h3 {
      color: #fff;
      font-size: 1.08rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .tip-card p {
      color: rgba(255, 255, 255, .68);
      font-size: .9rem;
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ========== 推荐内容 ========== */
    .related-section {
      padding: 92px 0;
      background: var(--bg);
    }

    .related-cards {
      margin-top: 48px;
    }

    .related-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: var(--transition);
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .related-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(200, 16, 46, .2);
    }

    .related-card .card-img-wrap {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      background: #e9ebf2;
    }

    .related-card .card-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }

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

    .related-card .card-img-wrap::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, .35));
    }

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

    .related-card .card-badge {
      display: inline-flex;
      align-items: center;
      background: rgba(200, 16, 46, .08);
      color: var(--primary);
      font-size: .78rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 50px;
      margin-bottom: 14px;
      align-self: flex-start;
    }

    .related-card h3 {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--dark);
      line-height: 1.4;
      margin-bottom: 12px;
    }

    .related-card p {
      font-size: .92rem;
      color: var(--text-muted);
      line-height: 1.7;
      flex: 1;
      margin-bottom: 18px;
    }

    .related-card .card-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-weight: 600;
      font-size: .92rem;
    }

    .related-card .card-link:hover {
      gap: 14px;
      color: var(--primary-dark);
    }

    /* ========== FAQ ========== */
    .faq-section {
      padding: 92px 0;
      background: var(--bg-soft);
    }

    .accordion {
      max-width: 860px;
      margin: 52px auto 0;
    }

    .accordion-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md) !important;
      margin-bottom: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .accordion-item:last-child {
      margin-bottom: 0;
    }

    .accordion-item:hover {
      border-color: rgba(200, 16, 46, .25);
    }

    .accordion-button {
      padding: 22px 28px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--dark);
      background: #fff;
      border: none;
      box-shadow: none;
    }

    .accordion-button:not(.collapsed) {
      background: #fff;
      color: var(--primary);
      box-shadow: none;
    }

    .accordion-button:focus {
      box-shadow: 0 0 0 3px rgba(200, 16, 46, .15);
      z-index: 2;
    }

    .accordion-button::after {
      background-image: none;
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      content: "\f107";
      width: auto;
      height: auto;
      color: var(--primary);
      font-size: 1.1rem;
      transition: transform .3s ease;
    }

    .accordion-button:not(.collapsed)::after {
      transform: rotate(180deg);
      background-image: none;
    }

    .accordion-body {
      padding: 6px 28px 26px;
      color: var(--text-muted);
      font-size: .95rem;
      line-height: 1.8;
    }

    /* ========== CTA ========== */
    .cta-section {
      position: relative;
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
      padding: 100px 0;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(125deg, rgba(200, 16, 46, .9), rgba(15, 18, 34, .88));
    }

    .cta-section .container {
      position: relative;
      z-index: 2;
    }

    .cta-inner {
      max-width: 720px;
      margin: 0 auto;
      text-align: center;
    }

    .cta-inner h2 {
      color: #fff;
      font-size: clamp(1.8rem, 3.5vw, 2.6rem);
      font-weight: 800;
      letter-spacing: -.5px;
      margin-bottom: 16px;
    }

    .cta-inner p {
      color: rgba(255, 255, 255, .82);
      font-size: 1.08rem;
      margin-bottom: 32px;
      line-height: 1.8;
    }

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

    .cta-section .btn-light {
      background: #fff;
      color: var(--primary);
      border: none;
      border-radius: 50px;
      font-weight: 700;
      padding: 14px 36px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, .15);
    }

    .cta-section .btn-light:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 40px rgba(0, 0, 0, .2);
      color: var(--primary-dark);
    }

    .cta-section .btn-ghost-light {
      background: transparent;
      border: 2px solid rgba(255, 255, 255, .65);
      color: #fff;
      border-radius: 50px;
      font-weight: 700;
      padding: 12px 34px;
    }

    .cta-section .btn-ghost-light:hover {
      background: rgba(255, 255, 255, .15);
      border-color: #fff;
      transform: translateY(-2px);
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background: var(--dark);
      padding: 70px 0 30px;
      color: rgba(255, 255, 255, .72);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr .8fr;
      gap: 48px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, .08);
      margin-bottom: 30px;
    }

    .footer-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.15rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: .92rem;
      line-height: 1.8;
      color: rgba(255, 255, 255, .58);
      max-width: 380px;
      margin-bottom: 0;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-title {
      color: #fff;
      font-weight: 700;
      font-size: 1rem;
      margin-bottom: 6px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, .6);
      font-size: .93rem;
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: var(--accent);
      padding-left: 6px;
    }

    .footer-bottom {
      text-align: center;
      font-size: .88rem;
      color: rgba(255, 255, 255, .4);
    }

    .footer-bottom p {
      margin-bottom: 0;
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
      .intro-grid {
        gap: 40px;
      }

      .steps-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
      }

      .step-card .step-arrow {
        display: none;
      }

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

    @media (max-width: 991.98px) {
      .site-header {
        top: 10px;
        padding: 0 12px;
      }

      .header-nav {
        border-radius: 24px;
        padding: 12px 18px;
      }

      .header-nav .navbar-collapse {
        background: #fff;
        border-radius: 20px;
        padding: 16px 14px;
        margin-top: 12px;
        box-shadow: var(--shadow-md);
      }

      .header-nav .navbar-nav .nav-link {
        padding: 10px 18px;
        font-size: .95rem;
      }

      .header-nav .navbar-nav .nav-link.active {
        background: rgba(200, 16, 46, .1);
        color: var(--primary);
        box-shadow: none;
      }

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

      .intro-visual {
        max-width: 520px;
      }

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

    @media (max-width: 768px) {
      .page-banner {
        min-height: 440px;
        border-radius: 0 0 30px 30px;
        margin-bottom: 50px;
      }

      .page-banner .container {
        padding-top: 56px;
        padding-bottom: 56px;
      }

      .section {
        padding: 64px 0;
      }

      .intro-section,
      .steps-section,
      .related-section,
      .faq-section {
        padding: 64px 0;
      }

      .tips-section {
        padding: 68px 0;
        background-attachment: scroll;
      }

      .cta-section {
        padding: 68px 0;
      }

      .stat-grid {
        gap: 14px;
      }

      .stat-item {
        padding: 20px 14px;
      }

      .stat-item .num {
        font-size: 1.5rem;
      }

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

      .btn-lg {
        padding: 12px 26px;
        font-size: .95rem;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .brand-logo {
        font-size: .95rem;
      }

      .brand-dot {
        width: 32px;
        height: 32px;
        font-size: .8rem;
      }

      .page-banner {
        min-height: 400px;
      }

      .page-banner .lead {
        font-size: .96rem;
      }

      .banner-actions {
        flex-direction: column;
        width: 100%;
      }

      .banner-actions .btn {
        width: 100%;
        text-align: center;
      }

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

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

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

      .related-card .card-body {
        padding: 22px;
      }

      .accordion-button {
        padding: 18px 20px;
        font-size: .93rem;
      }

      .accordion-body {
        padding: 4px 20px 22px;
      }

      .cta-actions {
        flex-direction: column;
        width: 100%;
      }

      .cta-actions .btn {
        width: 100%;
        text-align: center;
      }

      .footer-top {
        padding-bottom: 28px;
      }
    }

/* roulang page: article */
:root {
  --primary: #0f2a43;
  --primary-light: #1d4470;
  --primary-soft: #e9f0f8;
  --accent: #d4a545;
  --accent-dark: #b8863b;
  --accent-light: #fdf6e7;
  --bg-body: #f5f7fb;
  --bg-card: #ffffff;
  --text-main: #1e293b;
  --text-soft: #5b6b7f;
  --text-muted: #8a99ab;
  --border: #e2e8f0;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(15, 42, 67, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 42, 67, 0.09);
  --shadow-lg: 0 18px 42px rgba(15, 42, 67, 0.13);
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.25s ease;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
}
.container {
  max-width: 1200px;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(15, 42, 67, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.header-nav {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 60px;
  padding: 6px 20px;
  min-height: 58px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.12rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand-dot {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #f0cf7d);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 0.95rem;
  box-shadow: 0 4px 14px rgba(212, 165, 69, 0.35);
}
.header-nav .nav-link {
  color: rgba(255, 255, 255, 0.82);
  border-radius: 30px;
  padding: 8px 20px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.25s ease;
}
.header-nav .nav-link:hover,
.header-nav .nav-link:focus {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
}
.header-nav .nav-link.active {
  color: var(--primary);
  background: var(--accent);
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(212, 165, 69, 0.35);
}
.navbar-toggler {
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  width: 20px;
  height: 20px;
}
.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(212, 165, 69, 0.5);
}

/* ===== 页面横幅 ===== */
.page-banner {
  background: linear-gradient(135deg, rgba(15, 42, 67, 0.94) 0%, rgba(29, 68, 112, 0.9) 100%),
              url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 64px 0 56px;
  color: #ffffff;
  text-align: center;
  position: relative;
}
.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 40px;
  padding: 6px 18px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 16px;
  backdrop-filter: blur(6px);
}
.banner-tag i {
  color: var(--accent);
}
.breadcrumb-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}
.breadcrumb-nav a {
  color: rgba(255, 255, 255, 0.85);
}
.breadcrumb-nav a:hover {
  color: var(--accent);
}
.breadcrumb-nav i {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.4);
}
.breadcrumb-nav span:last-child {
  color: rgba(255, 255, 255, 0.55);
  max-width: 360px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== 文章主区 ===== */
.article-section {
  padding: 60px 0 40px;
}
.article-main {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 44px 48px 50px;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(226, 232, 240, 0.6);
}
.article-main h1 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.4;
  color: var(--primary);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.badge-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent-dark);
  border: 1px solid #f0dfbe;
  border-radius: 30px;
  padding: 5px 14px;
  font-size: 0.82rem;
  font-weight: 600;
}
.badge-category i {
  font-size: 0.75rem;
}
.meta-time {
  color: var(--text-muted);
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-divider {
  border-top: 1px solid var(--border);
  margin: 10px 0 30px;
}
.article-content {
  color: #334155;
  font-size: 1.04rem;
  line-height: 1.9;
  word-break: break-word;
}
.article-content p {
  margin-bottom: 1.25em;
}
.article-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  margin: 1.9em 0 0.8em;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary-light);
  margin: 1.7em 0 0.6em;
}
.article-content ul,
.article-content ol {
  padding-left: 1.5em;
  margin-bottom: 1.3em;
}
.article-content li {
  margin-bottom: 0.5em;
}
.article-content img {
  border-radius: var(--radius-md);
  margin: 26px 0;
  box-shadow: var(--shadow-sm);
}
.article-content blockquote {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  border-radius: 0 14px 14px 0;
  padding: 18px 22px;
  margin: 24px 0;
  color: #4a5568;
  font-style: italic;
}
.article-content a {
  color: var(--primary-light);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover {
  color: var(--accent-dark);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 26px 0;
  font-size: 0.95rem;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 12px 14px;
  text-align: left;
}
.article-content th {
  background: var(--primary-soft);
  font-weight: 600;
  color: var(--primary);
}
.empty-tip {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  background: var(--bg-body);
  border-radius: var(--radius-md);
}
.not-found-panel {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 80px 40px;
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(226, 232, 240, 0.6);
}
.not-found-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 1.8rem;
  margin-bottom: 20px;
}
.not-found-panel h2 {
  color: var(--primary);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.not-found-panel p {
  color: var(--text-soft);
  margin-bottom: 24px;
}

/* ===== 侧边栏 ===== */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.sidebar-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 26px 26px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(226, 232, 240, 0.55);
  transition: box-shadow 0.3s ease;
}
.sidebar-card:hover {
  box-shadow: var(--shadow-md);
}
.sidebar-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.sidebar-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}
.sidebar-head h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0;
}
.side-news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.side-news-list li {
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.side-news-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.side-news-list a {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.side-news-title {
  color: var(--text-main);
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.5;
  transition: color 0.2s ease;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.side-news-list a:hover .side-news-title {
  color: var(--accent-dark);
}
.side-news-date {
  color: var(--text-muted);
  font-size: 0.78rem;
}
.sidebar-cat-link {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--accent-light);
  border: 1px solid #f0dfbe;
  border-radius: var(--radius-md);
  padding: 16px 18px;
  transition: all 0.3s ease;
}
.sidebar-cat-link:hover {
  background: #fbf0d8;
  transform: translateX(3px);
}
.cat-link-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--accent);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.cat-link-text {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}
.cat-link-text strong {
  color: var(--primary);
  font-size: 0.98rem;
  font-weight: 600;
}
.cat-link-text small {
  color: var(--text-soft);
  font-size: 0.82rem;
}
.sidebar-cat-link > i {
  color: var(--accent-dark);
  font-size: 0.8rem;
}
.note-card p {
  color: var(--text-soft);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 14px;
}
.note-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.note-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-main);
  padding: 4px 0;
}
.note-list i {
  color: var(--accent);
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: 56px 0 40px;
  background: var(--bg-body);
}
.section-head {
  text-align: center;
  margin-bottom: 40px;
}
.section-tag {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent-dark);
  border: 1px solid #f0dfbe;
  border-radius: 30px;
  padding: 5px 18px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.section-head > p {
  color: var(--text-soft);
  font-size: 0.95rem;
  max-width: 520px;
  margin: 0 auto;
}
.related-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: block;
  height: 100%;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(226, 232, 240, 0.55);
  transition: all 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 165, 69, 0.4);
}
.card-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--primary-soft);
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.related-card:hover .card-cover img {
  transform: scale(1.05);
}
.card-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 42, 67, 0) 55%, rgba(15, 42, 67, 0.28) 100%);
  pointer-events: none;
}
.card-body-inner {
  padding: 22px 22px 24px;
}
.card-body-inner h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 3em;
}
.card-body-inner p {
  color: var(--text-soft);
  font-size: 0.88rem;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.card-link {
  color: var(--accent-dark);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.25s ease;
}
.related-card:hover .card-link {
  gap: 10px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 64px 0;
}
.faq-section .container {
  max-width: 880px;
}
.accordion {
  --bs-accordion-border-color: var(--border);
  --bs-accordion-bg: var(--bg-card);
  --bs-accordion-border-radius: var(--radius-md);
  --bs-accordion-inner-border-radius: var(--radius-md);
  --bs-accordion-btn-padding-y: 18px;
  --bs-accordion-btn-padding-x: 22px;
  --bs-accordion-body-padding-y: 18px;
  --bs-accordion-body-padding-x: 22px;
  --bs-accordion-active-bg: #fbf7ef;
  --bs-accordion-active-color: var(--primary);
  --bs-accordion-icon-color: var(--accent);
  --bs-accordion-icon-active-color: var(--primary);
}
.accordion-item {
  border-width: 1px;
  margin-bottom: 14px;
  border-radius: var(--radius-md) !important;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.accordion-button {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--bg-card);
  line-height: 1.5;
}
.accordion-button:not(.collapsed) {
  background: var(--accent-light);
  color: var(--primary);
}
.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(212, 165, 69, 0.25);
  border-color: var(--accent);
}
.accordion-button::after {
  background-size: 14px;
}
.accordion-body {
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: 0 0 70px;
}
.cta-block {
  background: linear-gradient(135deg, rgba(15, 42, 67, 0.96), rgba(29, 68, 112, 0.92)),
              url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  border-radius: var(--radius-xl);
  padding: 52px 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  color: #ffffff;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(212, 165, 69, 0.18);
  pointer-events: none;
}
.cta-content h2 {
  font-size: 1.55rem;
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.cta-content p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.95rem;
  margin: 0;
  max-width: 520px;
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--primary);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 30px;
  border-radius: 60px;
  border: none;
  transition: all 0.3s ease;
  box-shadow: 0 6px 20px rgba(212, 165, 69, 0.35);
}
.btn-cta:hover {
  background: #e3b75a;
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(212, 165, 69, 0.4);
}

/* ===== 通用按钮 ===== */
.btn-main {
  display: inline-block;
  background: var(--accent);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 30px;
  border-radius: 60px;
  border: none;
  transition: all 0.3s ease;
}
.btn-main:hover {
  background: #e3b75a;
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(212, 165, 69, 0.32);
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0b1e33;
  color: rgba(255, 255, 255, 0.72);
  padding: 60px 0 0;
  margin-top: 10px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2.2fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.18rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}
.footer-brand p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  line-height: 1.75;
  margin: 0;
  max-width: 420px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-title {
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 6px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.92rem;
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom p {
  margin: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(15, 42, 67, 0.96);
    border-radius: 18px;
    padding: 16px;
    margin-top: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
  }
  .header-nav .nav-link {
    padding: 10px 18px;
  }
  .header-nav .nav-link.active {
    background: var(--accent);
    color: var(--primary);
  }
  .cta-block {
    padding: 40px 30px;
  }
  .article-main {
    padding: 32px 26px;
  }
  .article-main h1 {
    font-size: 1.45rem;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
@media (max-width: 767.98px) {
  .page-banner {
    padding: 48px 0 40px;
  }
  .breadcrumb-nav {
    font-size: 0.82rem;
    gap: 6px;
  }
  .breadcrumb-nav span:last-child {
    max-width: 200px;
  }
  .article-section {
    padding: 40px 0 24px;
  }
  .related-section {
    padding: 40px 0 24px;
  }
  .section-head h2 {
    font-size: 1.45rem;
  }
  .cta-section {
    padding: 0 0 48px;
  }
  .cta-block {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 24px;
    border-radius: var(--radius-lg);
  }
  .cta-content h2 {
    font-size: 1.25rem;
  }
  .brand-logo {
    font-size: 0.98rem;
  }
  .brand-dot {
    width: 32px;
    height: 32px;
    font-size: 0.8rem;
  }
  .header-nav {
    padding: 6px 14px;
    border-radius: 44px;
  }
}
@media (max-width: 520px) {
  .article-main h1 {
    font-size: 1.25rem;
  }
  .article-content {
    font-size: 0.98rem;
  }
  .sidebar-card {
    padding: 20px 18px;
  }
  .card-cover {
    aspect-ratio: 16 / 10;
  }
  .footer-top {
    gap: 20px;
  }
}