:root {
  --primary: #0891b2;
  --accent: #0ea5e9;
  --bg: #ecfeff;
  --text: #083344;
  --card-bg: #ffffff;
  --shadow-heavy: 8px 8px 0px rgba(8, 145, 178, 0.15), 0 12px 30px rgba(8, 51, 68, 0.12);
  --shadow-hover: 12px 12px 0px rgba(14, 165, 233, 0.2), 0 18px 40px rgba(8, 51, 68, 0.18);
  --gradient-highlight: linear-gradient(145deg, #ffffff 0%, #f0fcff 100%);
}
* { margin:0; padding:0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}
h1, h2, h3, h4, .brand-font {
  font-family: 'Comic Neue', 'Segoe Print', 'PingFang SC', cursive;
  font-weight: 800;
  letter-spacing: 0.5px;
}

/* 左侧固定侧栏 */
.side-layout {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  width: 260px;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  background: var(--card-bg);
  border-right: 3px solid var(--primary);
  box-shadow: 4px 0 15px rgba(8, 145, 178, 0.08);
  z-index: 1050;
  padding: 24px 0;
  overflow-y: auto;
}
.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 0;
}

.sidebar-logo {
  padding: 20px 24px;
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--primary);
  text-shadow: 3px 3px 0 rgba(14, 165, 233, 0.2);
  display: block;
  text-decoration: none;
  border-bottom: 2px dashed var(--bg);
  margin-bottom: 16px;
}
.sidebar-logo i { margin-right: 8px; font-size: 1.8rem; color: var(--accent); }
.sidebar-logo:hover { color: var(--primary); }

.sidebar-nav {
  display: flex;
  flex-direction: column;
  padding: 0 12px;
}
.sidebar-nav a {
  padding: 12px 18px;
  margin: 3px 0;
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  transition: all 0.25s;
  border-left: 4px solid transparent;
  background: transparent;
}
.sidebar-nav a i { width: 28px; color: var(--primary); }
.sidebar-nav a:hover {
  background: var(--bg);
  color: var(--primary);
  border-left-color: var(--primary);
  transform: translateX(6px);
  box-shadow: 3px 3px 0 rgba(8, 145, 178, 0.1);
}

/* 移动端折叠侧栏 */
.mobile-topbar {
  display: none;
  background: var(--card-bg);
  padding: 14px 20px;
  border-bottom: 2px solid var(--primary);
  box-shadow: var(--shadow-heavy);
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1040;
}
.mobile-topbar .brand-font {
  font-size: 1.6rem;
  color: var(--primary);
  font-weight: 900;
}
.mobile-topbar .btn-toggle {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 1.2rem;
  box-shadow: 3px 3px 0 rgba(8, 51, 68, 0.3);
}

/* Hero 区 */
.hero-section {
  padding: 80px 60px;
  position: relative;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  overflow: hidden;
}
.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}
.stat-item {
  text-align: center;
}
.stat-number {
  font-size: 4.2rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  text-shadow: 3px 3px 0 rgba(14, 165, 233, 0.15);
  display: block;
}
.stat-label {
  font-size: 1rem;
  color: var(--text);
  opacity: 0.75;
  font-weight: 600;
  letter-spacing: 1px;
  margin-top: 8px;
  text-transform: uppercase;
}
.hero-title {
  font-size: 3.8rem;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 20px;
  line-height: 1.1;
  text-shadow: 2px 2px 0 rgba(14, 165, 233, 0.2);
}
.hero-title .highlight {
  color: var(--primary);
  position: relative;
}
.hero-desc {
  font-size: 1.2rem;
  max-width: 600px;
  color: var(--text);
  opacity: 0.85;
  line-height: 1.7;
  margin-bottom: 30px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-solid {
  background: var(--primary);
  color: white;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 14px;
  border: none;
  box-shadow: 5px 5px 0 rgba(8, 51, 68, 0.25);
  transition: all 0.2s;
  text-decoration: none;
  display: inline-block;
  font-size: 1.05rem;
}
.btn-solid:hover {
  background: var(--accent);
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(8, 51, 68, 0.25);
  color: white;
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 14px;
  border: 2px solid var(--primary);
  box-shadow: 3px 3px 0 rgba(8, 145, 178, 0.2);
  transition: all 0.2s;
  text-decoration: none;
  display: inline-block;
  font-size: 1.05rem;
}
.btn-outline:hover {
  background: var(--bg);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(8, 145, 178, 0.25);
  color: var(--text);
}

/* 区块通用 */
.section-block {
  padding: 70px 60px;
  opacity: 1;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.section-block.fade-in {
  opacity: 0;
  transform: translateY(30px);
}
.section-block.visible {
  opacity: 1;
  transform: translateY(0);
}
.section-title {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 5px;
  background: var(--primary);
  border-radius: 4px;
  box-shadow: 3px 3px 0 rgba(14, 165, 233, 0.3);
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text);
  opacity: 0.7;
  margin-bottom: 40px;
  max-width: 700px;
}

/* 对比表格 */
.compare-section {
  background: var(--card-bg);
}
.compare-table-wrapper {
  overflow-x: auto;
  border-radius: 20px;
  box-shadow: var(--shadow-heavy);
  background: white;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}
.compare-table th {
  background: var(--primary);
  color: white;
  padding: 20px 24px;
  font-size: 1.15rem;
  font-weight: 700;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.15);
}
.compare-table th:first-child {
  background: var(--text);
}
.compare-table td {
  padding: 18px 24px;
  border: 1px solid var(--bg);
  text-align: center;
  font-weight: 500;
}
.compare-table tr:nth-child(even) {
  background: #f8fdff;
}
.compare-table td:first-child {
  font-weight: 700;
  background: var(--bg);
  text-align: left;
}
.compare-table .fa-check {
  color: var(--primary);
  font-size: 1.2rem;
}
.compare-table .fa-xmark {
  color: #b45309;
  font-size: 1.2rem;
}

/* 特色卡片网格 */
.features-section {
  background: var(--bg);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}
.feature-card {
  background: var(--gradient-highlight);
  border-radius: 20px;
  padding: 35px 25px;
  box-shadow: var(--shadow-heavy);
  transition: all 0.3s;
  border: 2px solid rgba(8, 145, 178, 0.1);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, rgba(14,165,233,0.1) 0%, transparent 70%);
  border-radius: 50%;
}
.feature-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.feature-icon {
  font-size: 2.8rem;
  color: var(--primary);
  margin-bottom: 20px;
  text-shadow: 3px 3px 0 rgba(14, 165, 233, 0.2);
}
.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}
.feature-card p {
  color: var(--text);
  opacity: 0.8;
  line-height: 1.6;
  font-size: 0.98rem;
}
.feature-tag {
  display: inline-block;
  background: var(--bg);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-top: 14px;
  border: 1px solid var(--primary);
}

/* 介绍/步骤条 */
.intro-section {
  background: white;
}
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 800px;
}
.step-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 24px;
  background: var(--bg);
  border-radius: 18px;
  border-left: 6px solid var(--primary);
  box-shadow: 4px 4px 0 rgba(8, 145, 178, 0.1);
}
.step-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
  min-width: 55px;
  height: 55px;
  background: white;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 3px 3px 0 rgba(8, 145, 178, 0.2);
}
.step-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.step-content p {
  opacity: 0.8;
  line-height: 1.6;
}

/* FAQ 区 */
.faq-section {
  background: var(--bg);
}
.faq-list {
  max-width: 900px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.faq-item {
  background: white;
  border-radius: 16px;
  box-shadow: 5px 5px 0 rgba(8, 145, 178, 0.08);
  padding: 24px 30px;
  border: 2px solid transparent;
  transition: all 0.3s;
}
.faq-item:hover {
  border-color: var(--primary);
  box-shadow: 7px 7px 0 rgba(14, 165, 233, 0.15);
}
.faq-q {
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
}
.faq-q i {
  color: var(--primary);
  font-size: 1.4rem;
}
.faq-a {
  margin-top: 14px;
  padding-left: 38px;
  color: var(--text);
  opacity: 0.85;
  line-height: 1.7;
}

/* CTA 区 */
.cta-section {
  background: var(--primary);
  padding: 90px 60px;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 200%;
  background: rgba(255,255,255,0.05);
  transform: rotate(30deg);
}
.cta-title {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 18px;
  text-shadow: 3px 3px 0 rgba(0,0,0,0.2);
}
.cta-desc {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 35px;
  opacity: 0.95;
}
.cta-btn {
  background: white;
  color: var(--primary);
  font-weight: 800;
  padding: 16px 48px;
  border-radius: 50px;
  border: none;
  font-size: 1.2rem;
  box-shadow: 6px 6px 0 rgba(0,0,0,0.15);
  transition: all 0.25s;
  text-decoration: none;
  display: inline-block;
}
.cta-btn:hover {
  transform: translate(-3px, -3px);
  box-shadow: 10px 10px 0 rgba(0,0,0,0.2);
  background: var(--bg);
  color: var(--primary);
}

/* 页脚 + 友链 */
.footer-section {
  background: var(--text);
  color: rgba(255,255,255,0.8);
  padding: 60px 60px 30px;
}
.footer-brand {
  font-size: 2rem;
  font-weight: 900;
  color: white;
  margin-bottom: 20px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 25px;
}
.footer-links a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: white; }
.friend-links {
  border-top: 1px solid rgba(255,255,255,0.2);
  padding-top: 24px;
  margin-top: 30px;
  margin-bottom: 20px;
}
.friend-links h4 {
  font-size: 1.1rem;
  color: white;
  margin-bottom: 12px;
}
.friend-links .friend-list {
  font-size: 0.9rem;
  line-height: 1.8;
  word-break: break-all;
  color: rgba(255,255,255,0.5);
}
.copyright {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

/* 瀑布流卡片(用于特色下方扩展) */
.waterfall-container {
  columns: 3 320px;
  column-gap: 25px;
  margin-top: 40px;
}
.waterfall-item {
  break-inside: avoid;
  margin-bottom: 25px;
  background: white;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-heavy);
  transition: all 0.3s;
  position: relative;
}
.waterfall-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-5px);
}
.waterfall-media {
  height: 180px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.waterfall-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.play-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(8, 51, 68, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
}
.waterfall-item:hover .play-overlay {
  opacity: 1;
}
.play-btn {
  width: 60px;
  height: 60px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--primary);
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  transform: scale(0.7);
  transition: transform 0.3s;
}
.waterfall-item:hover .play-btn {
  transform: scale(1);
}
.waterfall-content {
  padding: 20px 22px;
}
.waterfall-content h4 {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.waterfall-content p {
  font-size: 0.9rem;
  color: var(--text);
  opacity: 0.75;
  line-height: 1.5;
}

/* 响应式 */
@media (max-width: 992px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; }
  .mobile-topbar { display: flex; }
  .hero-section, .section-block, .cta-section, .footer-section {
    padding-left: 30px;
    padding-right: 30px;
  }
  .hero-title { font-size: 2.6rem; }
}
@media (max-width: 768px) {
  .hero-stats { gap: 24px; }
  .stat-number { font-size: 3rem; }
  .section-block { padding: 50px 24px; }
  .hero-title { font-size: 2.2rem; }
  .cta-title { font-size: 2.2rem; }
}

/* 滚动动效 */
.parallax-hero {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* --- 子页面追加 --- */
/* 本页专属的小范围样式,自动合并进站点 CSS */
    .about-hero {
      background: var(--gradient-highlight);
      border: 1px solid rgba(8, 145, 178, 0.15);
      border-radius: 20px;
      padding: 60px 40px;
      margin-bottom: 50px;
      box-shadow: var(--shadow-heavy);
    }
.about-hero h1 {
      font-size: 2.6rem;
      font-weight: 800;
      color: var(--text);
      line-height: 1.3;
      margin-bottom: 20px;
    }
.about-hero h1 span {
      color: var(--primary);
      border-bottom: 3px solid var(--accent);
      padding-bottom: 2px;
    }
.about-hero p {
      font-size: 1.15rem;
      color: var(--text);
      max-width: 720px;
      line-height: 1.8;
    }
.about-hero .about-badge {
      display: inline-block;
      background: var(--primary);
      color: #fff;
      padding: 4px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }
.about-section-card {
      background: var(--card-bg);
      border: 1px solid rgba(8, 145, 178, 0.12);
      border-radius: 16px;
      padding: 35px 30px;
      margin-bottom: 35px;
      box-shadow: 0 4px 15px rgba(8, 51, 68, 0.06);
      transition: all 0.3s ease;
    }
.about-section-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
.about-section-card h2 {
      font-size: 1.55rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 18px;
      position: relative;
      padding-left: 18px;
    }
.about-section-card h2::before {
      content: '';
      position: absolute;
      left: 0;
      top: 4px;
      width: 6px;
      height: 26px;
      background: var(--accent);
      border-radius: 4px;
    }
.about-section-card p {
      color: var(--text);
      line-height: 1.85;
      font-size: 1rem;
      margin-bottom: 12px;
    }
.about-section-card ul {
      padding-left: 20px;
      color: var(--text);
    }
.about-section-card ul li {
      margin-bottom: 8px;
      line-height: 1.7;
    }
.about-section-card ul li strong {
      color: var(--primary);
    }
.about-timeline {
      list-style: none;
      padding-left: 0 !important;
      position: relative;
    }
.about-timeline li {
      position: relative;
      padding-left: 30px;
      padding-bottom: 25px;
      border-left: 2px solid rgba(8, 145, 178, 0.2);
      margin-left: 8px;
    }
.about-timeline li:last-child {
      border-left-color: transparent;
    }
.about-timeline li::before {
      content: '';
      position: absolute;
      left: -7px;
      top: 4px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--accent);
      border: 2px solid #fff;
      box-shadow: 0 0 0 2px var(--accent);
    }
.about-timeline .time {
      font-weight: 700;
      color: var(--primary);
      font-size: 0.95rem;
      display: block;
      margin-bottom: 4px;
    }
.about-stats-inline {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      margin: 25px 0 10px;
    }
.about-stat-chip {
      background: rgba(14, 165, 233, 0.08);
      border: 1px solid rgba(14, 165, 233, 0.25);
      border-radius: 12px;
      padding: 12px 20px;
      text-align: center;
      flex: 1;
      min-width: 120px;
    }
.about-stat-chip .num {
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--primary);
    }
.about-stat-chip .label {
      font-size: 0.85rem;
      color: var(--text);
      opacity: 0.8;
    }
.about-quote {
      background: rgba(8, 145, 178, 0.05);
      border-left: 4px solid var(--accent);
      padding: 18px 22px;
      border-radius: 0 12px 12px 0;
      font-style: italic;
      margin: 25px 0;
    }
.about-quote p {
      margin-bottom: 0;
      font-size: 1.05rem;
    }
.about-hero {
        padding: 40px 24px;
      }
.about-hero h1 {
        font-size: 1.9rem;
      }
.about-section-card {
        padding: 25px 20px;
      }

/* --- 子页面追加 --- */
/* 本页专属补充样式 */
        .disclaimer-hero {
            padding: 60px 0 40px;
            background: var(--gradient-highlight);
            border-bottom: 2px solid rgba(8, 145, 178, 0.1);
        }
.disclaimer-content {
            max-width: 860px;
            margin: 0 auto;
            padding: 40px 20px 80px;
        }
.legal-section {
            background: var(--card-bg);
            border-radius: 16px;
            padding: 30px 35px;
            margin-bottom: 30px;
            box-shadow: var(--shadow-heavy);
            border-left: 4px solid var(--primary);
            transition: box-shadow 0.3s ease;
        }
.legal-section:hover {
            box-shadow: var(--shadow-hover);
        }
.legal-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.legal-section h2 i {
            font-size: 1.2rem;
            color: var(--accent);
        }
.legal-section p {
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 14px;
            font-size: 0.95rem;
        }
.legal-section ul {
            padding-left: 20px;
            margin-bottom: 14px;
        }
.legal-section ul li {
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 8px;
            font-size: 0.95rem;
            position: relative;
        }
.legal-section ul li::marker {
            color: var(--accent);
        }
.legal-highlight {
            background: rgba(8, 145, 178, 0.08);
            border-radius: 8px;
            padding: 15px 20px;
            margin: 15px 0;
            border-left: 3px solid var(--accent);
            font-size: 0.9rem;
            color: var(--text);
            line-height: 1.7;
        }
.legal-date {
            text-align: right;
            color: var(--text);
            opacity: 0.7;
            font-size: 0.9rem;
            margin-top: 40px;
            font-style: italic;
        }
.legal-section {
                padding: 20px 18px;
            }
.disclaimer-hero {
                padding: 40px 0 30px;
            }
.legal-section h2 {
                font-size: 1.2rem;
            }

/* --- 子页面追加 --- */
/* 本页专属小范围样式,自动合并进站点CSS */
    .privacy-hero {
      padding: 4rem 0 2rem;
      background: var(--gradient-highlight);
      border-bottom: 2px solid rgba(8, 145, 178, 0.15);
    }
.privacy-hero .hero-title {
      margin-bottom: 0.5rem;
    }
.privacy-content {
      padding: 3rem 0 4rem;
    }
.privacy-section {
      background: var(--card-bg);
      border-radius: 16px;
      padding: 2rem 2.2rem;
      margin-bottom: 1.8rem;
      box-shadow: var(--shadow-heavy);
      border: 1px solid rgba(8, 145, 178, 0.12);
      transition: box-shadow 0.3s ease, transform 0.3s ease;
    }
.privacy-section:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }
.privacy-section h2 {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 1.2rem;
      display: flex;
      align-items: center;
      gap: 0.6rem;
      letter-spacing: -0.02em;
    }
.privacy-section h2 i {
      font-size: 1.2rem;
      color: var(--accent);
    }
.privacy-section h3 {
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--text);
      margin-top: 1.2rem;
      margin-bottom: 0.6rem;
    }
.privacy-section p {
      font-size: 0.95rem;
      line-height: 1.75;
      color: var(--text);
      margin-bottom: 1rem;
      opacity: 0.92;
    }
.privacy-section ul, .privacy-section ol {
      padding-left: 1.2rem;
      margin-bottom: 1rem;
    }
.privacy-section li {
      font-size: 0.95rem;
      line-height: 1.7;
      color: var(--text);
      margin-bottom: 0.4rem;
      opacity: 0.92;
    }
.privacy-section strong {
      color: var(--primary);
      font-weight: 600;
    }
.privacy-updated {
      font-size: 0.85rem;
      color: var(--text);
      opacity: 0.6;
      margin-bottom: 0;
      font-style: italic;
    }
.sidebar-nav a.active {
      background: var(--primary);
      color: #fff;
      box-shadow: 4px 4px 0 rgba(8, 145, 178, 0.3);
    }
.privacy-section {
        padding: 1.5rem 1.2rem;
      }
.privacy-hero {
        padding: 2.5rem 0 1.5rem;
      }

/* --- 子页面追加 --- */
.guide-hero {
            background: var(--gradient-highlight);
            border-bottom: 2px solid rgba(8, 145, 178, 0.2);
            padding: 80px 0 60px;
        }
.guide-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
.guide-hero p {
            font-size: 1.15rem;
            color: #155e75;
            max-width: 720px;
            margin: 0 auto;
            line-height: 1.8;
        }
.guide-section {
            padding: 64px 0;
            border-bottom: 1px solid rgba(8, 145, 178, 0.1);
        }
.guide-section:last-of-type {
            border-bottom: none;
        }
.guide-section h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 28px;
            position: relative;
            padding-left: 18px;
        }
.guide-section h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            width: 6px;
            height: 28px;
            background: var(--primary);
            border-radius: 3px;
        }
.guide-section h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text);
            margin: 24px 0 12px;
        }
.guide-card {
            background: var(--card-bg);
            border-radius: 16px;
            padding: 28px;
            box-shadow: var(--shadow-heavy);
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(8, 145, 178, 0.1);
        }
.guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
.guide-card .icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--gradient-highlight);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            border: 1px solid rgba(8, 145, 178, 0.2);
        }
.guide-card .icon-circle i {
            font-size: 1.4rem;
            color: var(--primary);
        }
.guide-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
.guide-card p {
            color: #155e75;
            line-height: 1.7;
            font-size: 0.95rem;
            margin-bottom: 0;
        }
.step-list {
            counter-reset: step;
            list-style: none;
            padding: 0;
        }
.step-list li {
            counter-increment: step;
            position: relative;
            padding: 16px 0 16px 56px;
            border-bottom: 1px dashed rgba(8, 145, 178, 0.15);
        }
.step-list li:last-child {
            border-bottom: none;
        }
.step-list li::before {
            content: counter(step);
            position: absolute;
            left: 0;
            top: 14px;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: 0 4px 12px rgba(8, 145, 178, 0.3);
        }
.step-list li strong {
            color: var(--text);
            font-weight: 700;
            display: block;
            margin-bottom: 4px;
        }
.step-list li span {
            color: #155e75;
            line-height: 1.7;
            font-size: 0.95rem;
        }
.tip-box {
            background: #f0fcff;
            border: 1px solid rgba(8, 145, 178, 0.2);
            border-radius: 12px;
            padding: 18px 22px;
            margin: 20px 0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
.tip-box i {
            color: var(--primary);
            font-size: 1.2rem;
            margin-top: 2px;
        }
.tip-box p {
            margin: 0;
            color: var(--text);
            line-height: 1.7;
            font-size: 0.95rem;
        }
.faq-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
.faq-item h4 i {
            color: var(--primary);
            font-size: 0.9rem;
        }
.faq-item p {
            color: #155e75;
            line-height: 1.7;
            font-size: 0.95rem;
            margin: 0;
        }
.quality-badge {
            display: inline-block;
            background: var(--gradient-highlight);
            border: 1px solid rgba(8, 145, 178, 0.25);
            color: var(--text);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin: 4px 4px 4px 0;
        }
.nowrap {
            white-space: nowrap;
        }