:root {
  --primary: #059669;
  --accent: #14b8a6;
  --bg-light: #f0fdfa;
  --text-dark: #134e4a;
  --radius-lg: 24px;
  --radius-md: 18px;
  --shadow-soft: 0 8px 30px rgba(5, 150, 105, 0.08);
  --shadow-hover: 0 16px 40px rgba(5, 150, 105, 0.18);
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-main);
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}
.navbar-custom {
  background: rgba(240, 253, 250, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(20, 184, 166, 0.15);
  padding: 12px 0;
  z-index: 1000;
}
.navbar-brand-custom {
  font-weight: 900;
  font-size: 1.6rem;
  color: var(--primary) !important;
  letter-spacing: -0.5px;
}
.nav-link-custom {
  color: var(--text-dark) !important;
  font-weight: 600;
  margin: 0 8px;
  padding: 8px 12px !important;
  border-radius: 50px;
  transition: all 0.3s;
}
.nav-link-custom:hover {
  background: rgba(5, 150, 105, 0.1);
  color: var(--primary) !important;
}
.navbar-toggler {
  border: none;
  color: var(--primary);
  font-size: 1.5rem;
}

.hero-section {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #0f172a 0%, #134e4a 50%, #0f766e 100%);
  border-radius: 0 0 40px 40px;
  overflow: hidden;
  margin-bottom: 80px;
}
.hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url('{随机图片}');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  filter: blur(2px);
  transition: transform 0.3s;
}
.hero-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.7), rgba(15, 23, 42, 0.3));
}
.hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  padding: 60px 20px;
  max-width: 800px;
}
.hero-badge {
  display: inline-block;
  background: rgba(20, 184, 166, 0.25);
  color: #99f6e4;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 20px;
  border: 1px solid rgba(20, 184, 166, 0.4);
}
.hero-title {
  font-size: 4rem;
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 20px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 400;
  opacity: 0.9;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.hero-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 14px 40px;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 60px;
  transition: all 0.3s;
  box-shadow: 0 8px 25px rgba(20, 184, 166, 0.3);
}
.hero-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(20, 184, 166, 0.4);
  background: #0d9488;
  color: #fff;
}
.wave-divider {
  position: relative;
  margin-top: -40px;
  z-index: 5;
}
.wave-divider svg {
  display: block;
  width: 100%;
  height: 60px;
}

.section-padding {
  padding: 90px 0;
}
.section-label {
  display: inline-block;
  background: rgba(5, 150, 105, 0.08);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 6px 18px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 15px;
}
.section-title {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  color: var(--text-dark);
}
.section-subtitle {
  font-size: 1.1rem;
  color: #5b7a76;
  max-width: 700px;
  margin-bottom: 50px;
}

/* Bento Grid */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}
.bento-item {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 35px;
  box-shadow: var(--shadow-soft);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 1px solid rgba(20, 184, 166, 0.08);
  opacity: 0;
  transform: translateY(30px);
}
.bento-item.visible {
  opacity: 1;
  transform: translateY(0);
}
.bento-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(5, 150, 105, 0.2);
}
.bento-1 { grid-column: span 7; }
.bento-2 { grid-column: span 5; }
.bento-3 { grid-column: span 5; }
.bento-4 { grid-column: span 7; }
.bento-5 { grid-column: span 4; }
.bento-6 { grid-column: span 8; }
.bento-icon {
  font-size: 2.2rem;
  color: var(--primary);
  margin-bottom: 20px;
  display: inline-block;
  background: rgba(5, 150, 105, 0.08);
  width: 70px;
  height: 70px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bento-item h3 {
  font-weight: 800;
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: var(--text-dark);
}
.bento-item p {
  color: #5b7a76;
  margin-bottom: 0;
}

/* Comparison Table */
.comparison-wrapper {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 40px;
  border: 1px solid rgba(20, 184, 166, 0.08);
}
.comparison-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.comparison-table th {
  background: rgba(5, 150, 105, 0.04);
  font-weight: 800;
  padding: 20px 16px;
  text-align: left;
  font-size: 1.1rem;
}
.comparison-table td {
  padding: 18px 16px;
  border-bottom: 1px solid #f0fdfa;
  vertical-align: middle;
}
.comparison-table tr:last-child td {
  border-bottom: none;
}
.table-badge {
  background: var(--primary);
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
}
.table-icon {
  color: var(--primary);
  margin-right: 8px;
}
.table-icon-muted {
  color: #94a3b8;
  margin-right: 8px;
}

/* Feature List */
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 25px;
  padding: 20px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(20, 184, 166, 0.06);
  transition: all 0.3s;
}
.feature-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-hover);
}
.feature-icon {
  flex-shrink: 0;
  width: 54px;
  height: 54px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.4rem;
}
.feature-content h4 {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 6px;
}
.feature-content p {
  color: #5b7a76;
  font-size: 0.95rem;
  margin: 0;
}

/* Accordion */
.accordion-custom {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  border: 1px solid rgba(20, 184, 166, 0.08);
}
.accordion-item-custom {
  border-bottom: 1px solid #f0fdfa;
}
.accordion-item-custom:last-child {
  border-bottom: none;
}
.accordion-header-custom {
  padding: 24px 30px;
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s;
  color: var(--text-dark);
}
.accordion-header-custom:hover {
  background: rgba(5, 150, 105, 0.04);
}
.accordion-header-custom i {
  color: var(--primary);
  transition: transform 0.3s;
  font-size: 1rem;
}
.accordion-body-custom {
  padding: 0 30px 24px;
  color: #5b7a76;
  line-height: 1.8;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
}
.accordion-item-custom.active .accordion-body-custom {
  max-height: 300px;
  padding: 0 30px 24px;
}
.accordion-item-custom.active .accordion-header-custom i {
  transform: rotate(180deg);
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, #0f172a, #134e4a);
  border-radius: var(--radius-lg);
  padding: 80px 40px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.2), transparent 70%);
}
.cta-section h2 {
  font-size: 2.8rem;
  font-weight: 900;
  margin-bottom: 20px;
  letter-spacing: -1px;
  position: relative;
  z-index: 2;
}
.cta-section p {
  font-size: 1.2rem;
  opacity: 0.85;
  margin-bottom: 40px;
  position: relative;
  z-index: 2;
}

/* Footer */
.footer-custom {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 0 30px;
  margin-top: 80px;
  border-radius: 40px 40px 0 0;
}
.footer-brand {
  color: #fff;
  font-weight: 900;
  font-size: 1.5rem;
  text-decoration: none;
}
.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.3s;
  margin-right: 20px;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-copyright {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 25px;
  margin-top: 40px;
  text-align: center;
  font-size: 0.9rem;
}

/* Friendly Links */
.friendly-links {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 40px;
  border: 1px solid rgba(20, 184, 166, 0.08);
  margin-top: 60px;
}
.friendly-links h3 {
  font-weight: 800;
  margin-bottom: 20px;
  font-size: 1.4rem;
  color: var(--text-dark);
}
.friendly-links .links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: #5b7a76;
  font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 992px) {
  .bento-1, .bento-2, .bento-3, .bento-4, .bento-5, .bento-6 {
    grid-column: span 12;
  }
  .hero-title {
    font-size: 2.8rem;
  }
  .section-title {
    font-size: 2.2rem;
  }
  .comparison-wrapper {
    padding: 20px;
    overflow-x: auto;
  }
  .comparison-table {
    min-width: 600px;
  }
}
@media (max-width: 576px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .section-padding {
    padding: 60px 0;
  }
  .bento-item {
    padding: 25px;
  }
  .cta-section {
    padding: 50px 20px;
  }
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.7s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* --- 子页面追加 --- */
/* 关于页专属样式 */
    .about-hero {
      background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 50%, #99f6e4 100%);
      padding: 100px 0 80px;
      position: relative;
      overflow: hidden;
    }
.about-hero::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -20%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(5, 150, 105, 0.08) 0%, transparent 70%);
      border-radius: 50%;
    }
.about-hero .hero-badge {
      display: inline-block;
      background: rgba(5, 150, 105, 0.1);
      color: var(--primary);
      padding: 8px 20px;
      border-radius: 30px;
      font-weight: 600;
      font-size: 0.9rem;
      letter-spacing: 0.5px;
      margin-bottom: 20px;
    }
.about-hero h1 {
      font-size: 3rem;
      font-weight: 900;
      color: var(--text-dark);
      margin-bottom: 20px;
      line-height: 1.2;
    }
.about-hero h1 span {
      color: var(--primary);
    }
.about-hero p {
      font-size: 1.15rem;
      color: var(--text-dark);
      opacity: 0.8;
      max-width: 650px;
      line-height: 1.8;
    }
.about-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-soft);
      height: 100%;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid rgba(5, 150, 105, 0.06);
    }
.about-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
.about-card .icon-wrap {
      width: 64px;
      height: 64px;
      border-radius: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      margin-bottom: 24px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #ffffff;
    }
.about-card h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 16px;
    }
.about-card p {
      color: var(--text-dark);
      opacity: 0.75;
      line-height: 1.8;
      font-size: 0.98rem;
      margin-bottom: 0;
    }
.story-section {
      background: var(--bg-light);
    }
.story-text p {
      line-height: 2;
      color: var(--text-dark);
      opacity: 0.8;
      margin-bottom: 20px;
      font-size: 1.05rem;
    }
.story-text strong {
      color: var(--primary);
      font-weight: 600;
    }
.stats-row {
      display: flex;
      flex-wrap: wrap;
      gap: 30px;
      margin-top: 40px;
    }
.stat-item {
      flex: 1;
      min-width: 150px;
      text-align: center;
      padding: 20px;
      background: #ffffff;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-soft);
    }
.stat-item .number {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      display: block;
      margin-bottom: 6px;
    }
.stat-item .label {
      color: var(--text-dark);
      opacity: 0.7;
      font-size: 0.9rem;
      font-weight: 500;
    }
.value-section {
      background: #ffffff;
    }
.value-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
.value-list li {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      padding: 20px 0;
      border-bottom: 1px solid rgba(5, 150, 105, 0.08);
    }
.value-list li:last-child {
      border-bottom: none;
    }
.value-list .value-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(5, 150, 105, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.1rem;
      flex-shrink: 0;
    }
.value-list .value-content h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 6px;
    }
.value-list .value-content p {
      color: var(--text-dark);
      opacity: 0.7;
      line-height: 1.7;
      font-size: 0.95rem;
      margin-bottom: 0;
    }
.team-note {
      background: linear-gradient(135deg, rgba(5, 150, 105, 0.05), rgba(20, 184, 166, 0.08));
      border-radius: var(--radius-lg);
      padding: 40px;
      text-align: center;
    }
.team-note h3 {
      color: var(--text-dark);
      font-weight: 700;
      margin-bottom: 16px;
      font-size: 1.4rem;
    }
.team-note p {
      color: var(--text-dark);
      opacity: 0.7;
      line-height: 1.8;
      max-width: 600px;
      margin: 0 auto 20px;
    }
.about-hero {
        padding: 60px 0 50px;
      }
.about-hero h1 {
        font-size: 2.2rem;
      }
.about-card {
        padding: 28px;
      }

/* --- 子页面追加 --- */
/* 补充页面专属样式 */
    .disclaimer-hero {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      border-radius: var(--radius-lg);
      padding: 3rem 2rem;
      margin-top: 2rem;
      color: #fff;
      position: relative;
      overflow: hidden;
    }
.disclaimer-hero::after {
      content: '';
      position: absolute;
      right: -30px;
      top: -30px;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      background: rgba(255,255,255,.08);
    }
.disclaimer-hero h1 {
      font-weight: 800;
      font-size: 2.2rem;
      position: relative;
      z-index: 2;
    }
.disclaimer-hero p {
      opacity: .92;
      max-width: 700px;
      position: relative;
      z-index: 2;
    }
.disclaimer-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 1.8rem 2rem;
      box-shadow: var(--shadow-soft);
      margin-bottom: 1.5rem;
      border-left: 4px solid var(--primary);
      transition: box-shadow .3s ease;
    }
.disclaimer-card:hover {
      box-shadow: var(--shadow-hover);
    }
.disclaimer-card h2 {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      gap: .6rem;
    }
.disclaimer-card h2 i {
      font-size: 1.2rem;
    }
.disclaimer-card p, .disclaimer-card li {
      color: var(--text-dark);
      line-height: 1.8;
      font-size: .95rem;
    }
.disclaimer-card ul {
      padding-left: 1.2rem;
    }
.disclaimer-card li {
      margin-bottom: .4rem;
    }
.highlight-tag {
      background: var(--bg-light);
      color: var(--primary);
      font-weight: 600;
      padding: .15rem .6rem;
      border-radius: 6px;
      font-size: .85rem;
      display: inline-block;
      margin-right: .3rem;
    }
.update-badge {
      background: var(--primary);
      color: #fff;
      font-size: .75rem;
      padding: .2rem .8rem;
      border-radius: 20px;
      font-weight: 600;
      display: inline-block;
      margin-left: .5rem;
      vertical-align: middle;
    }
.contact-box {
      background: var(--bg-light);
      border-radius: var(--radius-md);
      padding: 1.5rem 2rem;
      border: 1px dashed var(--primary);
      margin-top: 1rem;
    }
.contact-box a {
      color: var(--primary);
      font-weight: 600;
      text-decoration: none;
      border-bottom: 1px solid var(--primary);
    }
.contact-box a:hover {
      color: var(--text-dark);
    }

/* --- 子页面追加 --- */
/* 覆盖 Bootstrap 组件配色，确保与站点风格一致 */
    .card, .card-body, .card-title, .card-text, .card-header, .card-footer {
      background: var(--bg-light);
      color: var(--text-dark);
      border-color: rgba(5, 150, 105, 0.15);
    }
.form-control, .form-select, .form-label, .input-group-text {
      background: #ffffff;
      color: var(--text-dark);
      border-color: rgba(5, 150, 105, 0.25);
    }
.form-control::placeholder {
      color: rgba(19, 78, 74, 0.5);
    }
.table, .list-group-item, .accordion-item, .accordion-button, .accordion-body {
      background: var(--bg-light);
      color: var(--text-dark);
      border-color: rgba(5, 150, 105, 0.15);
    }
.accordion-button:not(.collapsed) {
      background: rgba(5, 150, 105, 0.08);
      color: var(--text-dark);
    }
.modal-content, .modal-header, .modal-body, .dropdown-menu, .dropdown-item {
      background: var(--bg-light);
      color: var(--text-dark);
      border-color: rgba(5, 150, 105, 0.15);
    }
.nav-link, .navbar, .navbar-brand {
      color: var(--text-dark);
    }
.btn-light {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }
.btn-outline-primary, .btn-outline-success {
      color: var(--primary);
      border-color: var(--primary);
    }
.btn-outline-primary:hover, .btn-outline-success:hover {
      background: var(--primary);
      color: #fff;
    }
/* 本页专用微调 */
    .guide-hero {
      padding: 3rem 0 2rem;
    }
.guide-section {
      padding: 2rem 0;
    }
.key-hint {
      background: rgba(5, 150, 105, 0.06);
      border-radius: var(--radius-md);
      padding: 0.75rem 1rem;
      font-weight: 600;
      color: var(--primary);
    }
.step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      margin-right: 10px;
    }
.guide-icon {
      font-size: 1.8rem;
      color: var(--primary);
      margin-bottom: 0.5rem;
    }
/* 导航高亮当前页 */
    .navbar .nav-link.active {
      color: var(--primary) !important;
      font-weight: 700;
    }

/* --- 子页面追加 --- */
/* 榜单卡片覆盖 Bootstrap 默认白底 —— 确保和深绿主题融合 */
    .rank-card, .rank-card .card-body {
      background: var(--card-bg, #ffffff10); /* fallback */
      background: linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
      color: var(--text-dark);
      border: 1px solid rgba(5,150,105,0.25);
      backdrop-filter: blur(6px);
      border-radius: var(--radius-md);
    }
.rank-card .card-title, .rank-card .card-text {
      color: var(--text-dark);
    }
.rank-card .badge-rank {
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      border-radius: 30px;
      padding: 4px 12px;
      font-size: 0.9rem;
    }
.rank-card .trend-up { color: #0d9488; font-weight: 600; }
.rank-card .trend-down { color: #b45309; font-weight: 600; }
.rank-card .trend-flat { color: #64748b; font-weight: 600; }
/* 榜单标签页 (自己写样式, 不用 bootstrap 组件类) */
    .rank-tabs {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 28px;
    }
.rank-tab-btn {
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(5,150,105,0.25);
      color: var(--text-dark);
      padding: 8px 22px;
      border-radius: 40px;
      font-weight: 600;
      font-size: 0.95rem;
      transition: all 0.2s;
    }
.rank-tab-btn.active, .rank-tab-btn:hover {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
      box-shadow: var(--shadow-soft);
    }
/* 封面占位背景 */
    .rank-cover {
      background: linear-gradient(135deg, #0f766e, #14b8a6);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255,255,255,0.9);
      font-weight: 700;
      font-size: 1.5rem;
      width: 100%;
      aspect-ratio: 1/1.2;
      text-shadow: 0 2px 6px rgba(0,0,0,0.3);
      letter-spacing: 1px;
    }
.rank-cover i {
      font-size: 2.2rem;
      opacity: 0.85;
    }
.section-title small {
      font-size: 1rem;
      font-weight: 400;
      color: var(--text-dark);
      opacity: 0.8;
    }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }