:root {
      --primary: #64748b;
      --accent: #94a3b8;
      --bg: #f1f5f9;
      --text: #1e293b;
      --card-bg: #ffffff;
      --divider: #e2e8f0;
      --shadow-sm: 0 1px 3px rgba(30, 41, 59, 0.06);
      --shadow-md: 0 6px 18px rgba(30, 41, 59, 0.09);
      --radius: 8px;
      --font-heading: 'Source Han Serif SC', 'Noto Serif SC', 'Songti SC', 'STSong', serif;
      --font-body: 'Source Han Sans SC', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Inter', sans-serif;
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      background-color: var(--bg);
      color: var(--text);
      font-family: var(--font-body);
      font-size: 14px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    h1, h2, h3, h4, h5, .heading-font {
      font-family: var(--font-heading);
      font-weight: 700;
      color: var(--text);
    }

    a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
    a:hover { color: var(--accent); }

    /* ========== 几何色块背景 ========== */
    .geo-bg {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      overflow: hidden;
    }
    .geo-shape {
      position: absolute;
      opacity: 0.12;
      border-radius: 50%;
      background: var(--primary);
    }
    .geo-shape.circle-1 { width: 320px; height: 320px; top: 6%; left: -90px; }
    .geo-shape.circle-2 { width: 180px; height: 180px; top: 55%; right: -60px; opacity: 0.09; }
    .geo-shape.square-1 {
      width: 140px; height: 140px; border-radius: var(--radius);
      top: 22%; right: 12%; opacity: 0.07; transform: rotate(18deg);
      background: var(--accent);
    }
    .geo-shape.triangle-1 {
      width: 0; height: 0;
      border-left: 70px solid transparent;
      border-right: 70px solid transparent;
      border-bottom: 120px solid var(--primary);
      background: none;
      border-radius: 0;
      top: 70%; left: 8%;
      opacity: 0.08;
    }
    .geo-shape.circle-3 { width: 90px; height: 90px; top: 88%; right: 30%; opacity: 0.1; background: var(--accent); }

    /* ========== 导航 ========== */
    .site-nav {
      background: rgba(241, 245, 249, 0.92);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--divider);
      position: sticky;
      top: 0;
      z-index: 1030;
      padding: 0.55rem 0;
    }
    .navbar-brand {
      font-family: var(--font-heading);
      font-weight: 800;
      font-size: 1.15rem;
      color: var(--text) !important;
      letter-spacing: 0.5px;
    }
    .navbar-brand .brand-dot { color: var(--primary); margin-right: 6px; font-size: 0.9em; }
    .nav-link {
      color: var(--text) !important;
      font-size: 0.86rem;
      font-weight: 500;
      padding: 0.35rem 0.7rem !important;
      border-radius: 6px;
      transition: background 0.15s ease, color 0.15s ease;
    }
    .nav-link:hover, .nav-link.active {
      background: var(--primary);
      color: #fff !important;
    }
    .navbar-toggler {
      border: 1px solid var(--divider);
      border-radius: 6px;
      padding: 0.25rem 0.5rem;
    }
    .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.2); }

    /* ========== Hero ========== */
    .hero {
      padding: 5.5rem 0 4.5rem;
      position: relative;
    }
    .hero .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--primary);
      background: rgba(100, 116, 139, 0.1);
      border: 1px solid rgba(100, 116, 139, 0.22);
      padding: 0.35rem 0.9rem;
      border-radius: 100px;
      margin-bottom: 1.4rem;
    }
    .hero h1 {
      font-size: clamp(2rem, 4.6vw, 3.6rem);
      line-height: 1.18;
      letter-spacing: -0.5px;
      margin-bottom: 1.1rem;
    }
    .hero h1 .hl {
      color: var(--primary);
      position: relative;
      white-space: nowrap;
    }
    .hero h1 .hl::after {
      content: '';
      position: absolute;
      left: 0; right: 0; bottom: 4px;
      height: 10px;
      background: var(--accent);
      opacity: 0.28;
      z-index: -1;
      border-radius: 2px;
    }
    .hero .lead-sub {
      font-size: 1rem;
      color: #475569;
      max-width: 640px;
      line-height: 1.85;
      margin-bottom: 1.8rem;
    }
    .btn-primary-custom {
      background: var(--primary);
      border: 1px solid var(--primary);
      color: #fff;
      font-weight: 600;
      font-size: 0.9rem;
      padding: 0.65rem 1.5rem;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }
    .btn-primary-custom:hover {
      background: #4b5a6e;
      border-color: #4b5a6e;
      color: #fff;
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }
    .btn-outline-custom {
      background: transparent;
      border: 1px solid var(--accent);
      color: var(--text);
      font-weight: 600;
      font-size: 0.9rem;
      padding: 0.65rem 1.5rem;
      border-radius: var(--radius);
      transition: all 0.2s ease;
    }
    .btn-outline-custom:hover {
      background: var(--accent);
      border-color: var(--accent);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }
    .hero-stats {
      margin-top: 2.4rem;
      border-top: 1px solid var(--divider);
      padding-top: 1.4rem;
    }
    .stat-item .stat-num {
      font-family: var(--font-heading);
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      display: inline-block;
    }
    .stat-item .stat-label {
      font-size: 0.72rem;
      color: #64748b;
      letter-spacing: 0.5px;
    }

    /* ========== 通用区块 ========== */
    .section { padding: 3.6rem 0; }
    .section-alt { background: rgba(255, 255, 255, 0.55); }
    .section-head { margin-bottom: 2rem; }
    .section-head .kicker {
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--accent);
      display: block;
      margin-bottom: 0.6rem;
    }
    .section-head h2 {
      font-size: clamp(1.4rem, 2.6vw, 2rem);
      margin-bottom: 0.5rem;
    }
    .section-head p {
      color: #64748b;
      font-size: 0.88rem;
      max-width: 620px;
      margin-bottom: 0;
    }

    /* ========== 特色卡片 标签页 ========== */
    .tab-nav {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-bottom: 1.6rem;
      border-bottom: 1px solid var(--divider);
      padding-bottom: 0.75rem;
    }
    .tab-btn {
      background: transparent;
      border: 1px solid transparent;
      color: #64748b;
      font-family: var(--font-body);
      font-size: 0.82rem;
      font-weight: 600;
      padding: 0.45rem 1rem;
      border-radius: 100px;
      cursor: pointer;
      transition: all 0.18s ease;
    }
    .tab-btn:hover { background: rgba(100, 116, 139, 0.08); color: var(--primary); }
    .tab-btn.active {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }
    .tab-pane { display: none; }
    .tab-pane.active { display: block; animation: fadeUp 0.35s ease; }
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(8px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
    }
    .feature-card {
      background: var(--card-bg);
      border: 1px solid var(--divider);
      border-radius: var(--radius);
      padding: 1.1rem 1.15rem;
      box-shadow: var(--shadow-sm);
      transition: transform 0.22s ease, box-shadow 0.22s ease;
      height: 100%;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .feature-card .fc-icon {
      width: 34px; height: 34px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      background: rgba(100, 116, 139, 0.1);
      color: var(--primary);
      font-size: 0.95rem;
      margin-bottom: 0.7rem;
    }
    .feature-card h3 {
      font-size: 0.98rem;
      margin-bottom: 0.4rem;
      font-weight: 700;
    }
    .feature-card p {
      font-size: 0.8rem;
      color: #64748b;
      margin-bottom: 0.6rem;
      line-height: 1.65;
    }
    .fc-tag {
      font-size: 0.66rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      color: var(--primary);
      background: rgba(148, 163, 184, 0.16);
      padding: 0.18rem 0.55rem;
      border-radius: 100px;
      display: inline-block;
    }

    /* ========== 长文介绍 时间线 ========== */
    .timeline {
      position: relative;
      padding-left: 1.8rem;
    }
    .timeline::before {
      content: '';
      position: absolute;
      left: 7px;
      top: 6px;
      bottom: 6px;
      width: 2px;
      background: linear-gradient(to bottom, var(--accent), var(--divider));
      border-radius: 2px;
    }
    .tl-item {
      position: relative;
      margin-bottom: 2rem;
    }
    .tl-item:last-child { margin-bottom: 0; }
    .tl-item::before {
      content: '';
      position: absolute;
      left: -1.8rem;
      top: 5px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--card-bg);
      border: 3px solid var(--primary);
      box-shadow: 0 0 0 4px var(--bg);
    }
    .tl-item .tl-date {
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 0.25rem;
    }
    .tl-item h4 {
      font-size: 1rem;
      margin-bottom: 0.35rem;
      font-weight: 700;
    }
    .tl-item p {
      font-size: 0.82rem;
      color: #64748b;
      margin-bottom: 0;
      line-height: 1.75;
    }
    .intro-lead {
      background: var(--card-bg);
      border: 1px solid var(--divider);
      border-left: 4px solid var(--primary);
      border-radius: var(--radius);
      padding: 1.2rem 1.4rem;
      font-size: 0.9rem;
      color: #475569;
      line-height: 1.9;
      margin-bottom: 2rem;
    }
    .intro-lead strong { color: var(--primary); }

    /* ========== FAQ ========== */
    .accordion-item {
      background: var(--card-bg);
      border: 1px solid var(--divider);
      border-radius: var(--radius) !important;
      margin-bottom: 0.65rem;
      overflow: hidden;
    }
    .accordion-button {
      background: var(--card-bg);
      color: var(--text);
      font-family: var(--font-body);
      font-size: 0.9rem;
      font-weight: 600;
      padding: 0.95rem 1.1rem;
      box-shadow: none !important;
    }
    .accordion-button:not(.collapsed) {
      background: rgba(100, 116, 139, 0.06);
      color: var(--primary);
    }
    .accordion-button::after {
      background-size: 0.9rem;
    }
    .accordion-body {
      font-size: 0.84rem;
      color: #64748b;
      line-height: 1.8;
      padding: 0.4rem 1.1rem 1.1rem;
    }

    /* ========== CTA ========== */
    .cta-block {
      background: linear-gradient(135deg, #475569 0%, #64748b 55%, #7c8ba1 100%);
      border-radius: calc(var(--radius) * 1.5);
      padding: 3rem 2rem;
      text-align: center;
      color: #fff;
      position: relative;
      overflow: hidden;
    }
    .cta-block::before {
      content: '';
      position: absolute;
      width: 240px; height: 240px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
      top: -80px; left: -60px;
    }
    .cta-block::after {
      content: '';
      position: absolute;
      width: 160px; height: 160px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.05);
      bottom: -50px; right: -30px;
      transform: rotate(20deg);
    }
    .cta-block h2 {
      color: #fff;
      font-size: clamp(1.4rem, 2.6vw, 2rem);
      margin-bottom: 0.6rem;
      position: relative;
      z-index: 1;
    }
    .cta-block p {
      color: rgba(255, 255, 255, 0.82);
      font-size: 0.9rem;
      max-width: 520px;
      margin: 0 auto 1.5rem;
      position: relative;
      z-index: 1;
    }
    .btn-light-custom {
      background: #fff;
      color: var(--primary);
      border: 1px solid #fff;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 0.65rem 1.6rem;
      border-radius: var(--radius);
      transition: all 0.2s ease;
      position: relative;
      z-index: 1;
    }
    .btn-light-custom:hover {
      background: var(--bg);
      color: var(--primary);
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
    }

    /* ========== 友情链接 ========== */
    .friend-links {
      padding: 2.2rem 0;
      border-top: 1px solid var(--divider);
      border-bottom: 1px solid var(--divider);
      background: rgba(255, 255, 255, 0.5);
    }
    .friend-links h3 {
      font-size: 0.82rem;
      font-weight: 700;
      letter-spacing: 1.5px;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 0.8rem;
    }
    .friend-links .links-row {
      font-size: 0.8rem;
      color: #64748b;
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background: #1e293b;
      color: #cbd5e1;
      padding: 2.6rem 0 1.6rem;
      font-size: 0.8rem;
    }
    .site-footer a { color: #cbd5e1; }
    .site-footer a:hover { color: #fff; }
    .site-footer .footer-brand {
      font-family: var(--font-heading);
      font-weight: 800;
      font-size: 1.05rem;
      color: #fff;
      margin-bottom: 0.5rem;
      display: inline-block;
    }
    .site-footer .footer-brand .brand-dot { color: var(--accent); margin-right: 5px; }
    .footer-desc { color: #94a3b8; font-size: 0.78rem; max-width: 340px; line-height: 1.7; }
    .footer-col-title {
      color: #fff;
      font-weight: 600;
      font-size: 0.78rem;
      letter-spacing: 0.5px;
      margin-bottom: 0.7rem;
    }
    .footer-link-list a {
      display: block;
      padding: 0.18rem 0;
      color: #94a3b8;
      font-size: 0.78rem;
    }
    .footer-link-list a:hover { color: #fff; }
    .footer-bottom {
      border-top: 1px solid #334155;
      margin-top: 1.8rem;
      padding-top: 1.1rem;
      color: #94a3b8;
      font-size: 0.74rem;
    }

    /* ========== 回到顶部 ========== */
    #backTop {
      position: fixed;
      right: 18px;
      bottom: 22px;
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      border: none;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      cursor: pointer;
      opacity: 0;
      visibility: hidden;
      transform: translateY(12px);
      transition: all 0.28s ease;
      box-shadow: 0 6px 18px rgba(30, 41, 59, 0.28);
      z-index: 1050;
    }
    #backTop.show {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    #backTop:hover { background: #4b5a6e; }

    /* ========== 响应式 ========== */
    @media (max-width: 991.98px) {
      .card-grid { grid-template-columns: repeat(2, 1fr); }
      .hero { padding: 3.8rem 0 3rem; }
    }
    @media (max-width: 575.98px) {
      body { font-size: 13.5px; }
      .card-grid { grid-template-columns: 1fr; }
      .hero { padding: 3rem 0 2.4rem; }
      .section { padding: 2.6rem 0; }
      .tab-btn { font-size: 0.76rem; padding: 0.38rem 0.8rem; }
      .cta-block { padding: 2.2rem 1.2rem; }
      .hero-stats .stat-item { margin-bottom: 0.9rem; }
    }

/* --- 子页面追加 --- */
html, body { font-family: var(--font-body); background: var(--bg); color: var(--text); }
h1, h2, h3, h4 { font-family: var(--font-heading); }
.about-hero { padding: 72px 0 48px; position: relative; overflow: hidden; }
.about-hero h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); line-height: 1.35; margin-bottom: 18px; }
.about-hero .intro-lead { font-size: 1.03rem; color: var(--primary); max-width: 760px; line-height: 1.9; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.hero-meta .hm-item { background: var(--card-bg); border: 1px solid var(--divider); border-radius: var(--radius); padding: 10px 16px; font-size: .86rem; color: var(--primary); box-shadow: var(--shadow-sm); }
.hero-meta .hm-item strong { color: var(--text); font-weight: 700; }
.about-card { background: var(--card-bg); border: 1px solid var(--divider); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 26px 24px; height: 100%; transition: box-shadow .25s ease, transform .25s ease; }
.about-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.about-card h3 { font-size: 1.08rem; margin-bottom: 12px; color: var(--text); }
.about-card p { font-size: .92rem; line-height: 1.85; color: var(--primary); margin-bottom: 0; }
.about-card .fc-tag { display: inline-block; margin-bottom: 14px; }
.prose-block p { font-size: .95rem; line-height: 1.95; color: var(--primary); margin-bottom: 16px; }
.prose-block p:last-child { margin-bottom: 0; }
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat-cell { background: var(--card-bg); border: 1px solid var(--divider); border-radius: var(--radius); padding: 22px 18px; text-align: center; box-shadow: var(--shadow-sm); }
.stat-cell .num { font-family: var(--font-heading); font-size: 1.6rem; font-weight: 700; color: var(--text); display: block; line-height: 1.2; }
.stat-cell .lbl { font-size: .8rem; color: var(--primary); margin-top: 6px; display: block; letter-spacing: .02em; }
.stat-strip { grid-template-columns: repeat(2, 1fr); }
.principle-list { list-style: none; padding: 0; margin: 0; }
.principle-list li { position: relative; padding-left: 30px; margin-bottom: 16px; font-size: .93rem; line-height: 1.85; color: var(--primary); }
.principle-list li:last-child { margin-bottom: 0; }
.principle-list li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; top: 2px; color: var(--accent); font-size: .85rem; }
.principle-list li strong { color: var(--text); }
.about-cta { background: var(--card-bg); border: 1px solid var(--divider); border-radius: var(--radius); box-shadow: var(--shadow-md); padding: 40px 28px; text-align: center; }
.about-cta h2 { font-size: 1.35rem; margin-bottom: 14px; }
.about-cta p { color: var(--primary); font-size: .93rem; line-height: 1.9; max-width: 640px; margin: 0 auto 24px; }
.about-cta .btn-primary-custom { margin-right: 10px; }
.about-cta .btn-primary-custom { margin-right: 0; margin-bottom: 12px; display: inline-block; }
.site-footer .f-brand { font-family: var(--font-heading); font-weight: 700; font-size: 1.02rem; color: var(--text); margin-bottom: 10px; }
.site-footer .f-desc { font-size: .84rem; color: var(--primary); line-height: 1.8; max-width: 460px; }
.site-footer .f-links { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 20px; }
.site-footer .f-links a { font-size: .84rem; color: var(--primary); text-decoration: none; }
.site-footer .f-links a:hover { color: var(--text); }
.site-footer .f-bottom { border-top: 1px solid var(--divider); margin-top: 26px; padding-top: 18px; font-size: .78rem; color: var(--primary); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }

/* --- 子页面追加 --- */
.legal-wrap {
      max-width: 880px;
      margin: 0 auto;
    }
.legal-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 22px;
      font-size: 0.85rem;
      color: var(--primary);
      margin-bottom: 26px;
    }
.legal-meta span i { margin-right: 6px; color: var(--accent); }
.legal-card {
      background: var(--card-bg);
      border: 1px solid var(--divider);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      padding: 30px 32px;
      margin-bottom: 22px;
    }
.legal-card h2 {
      font-family: var(--font-heading);
      font-size: 1.28rem;
      font-weight: 700;
      margin-bottom: 14px;
      padding-left: 14px;
      border-left: 4px solid var(--accent);
      line-height: 1.45;
    }
.legal-card h3 {
      font-size: 1.02rem;
      font-weight: 600;
      margin: 18px 0 8px;
      color: var(--primary);
    }
.legal-card p,
    .legal-card li {
      font-size: 0.95rem;
      line-height: 1.85;
      color: var(--text);
    }
.legal-card p { margin-bottom: 12px; }
.legal-card ul,
    .legal-card ol { padding-left: 20px; margin-bottom: 12px; }
.legal-card li { margin-bottom: 6px; }
.legal-card strong { color: var(--primary); font-weight: 600; }
.legal-note {
      background: #f8fafc;
      border: 1px dashed var(--divider);
      border-left: 4px solid var(--accent);
      border-radius: var(--radius);
      padding: 14px 18px;
      font-size: 0.9rem;
      line-height: 1.8;
      color: var(--primary);
      margin-top: 6px;
    }
.legal-note i { color: var(--accent); margin-right: 6px; }
.legal-toc {
      background: var(--card-bg);
      border: 1px solid var(--divider);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      padding: 22px 26px;
      margin-bottom: 24px;
    }
.legal-toc p {
      font-weight: 600;
      margin-bottom: 10px;
      font-size: 0.95rem;
    }
.legal-toc ol {
      margin: 0;
      padding-left: 20px;
      columns: 2;
      column-gap: 30px;
    }
.legal-toc li {
      font-size: 0.9rem;
      line-height: 1.9;
    }
.legal-toc a {
      color: var(--primary);
      text-decoration: none;
      border-bottom: 1px dotted var(--accent);
    }
.legal-toc a:hover { color: var(--text); }
.legal-cta {
      text-align: center;
      padding: 34px 24px;
    }
.legal-cta h2 {
      border-left: none;
      padding-left: 0;
      text-align: center;
    }
.legal-cta p { max-width: 560px; margin: 0 auto 20px; }
.legal-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
    }
.legal-btns a { text-decoration: none; }
.legal-card { padding: 22px 18px; }
.legal-toc ol { columns: 1; }
.legal-card h2 { font-size: 1.12rem; }

/* --- 子页面追加 --- */
.guide-hero { padding: 72px 0 56px; }
.guide-hero h1 { font-family: var(--font-heading); font-weight: 700; letter-spacing: .5px; }
.step-num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: 50%;
    background: var(--primary); color: #fff; font-weight: 700; font-size: .95rem;
    margin-right: 10px; flex: 0 0 auto;
  }
.step-line { display: flex; align-items: flex-start; gap: 4px; }
.guide-card {
    background: var(--card-bg); border: 1px solid var(--divider);
    border-radius: var(--radius); box-shadow: var(--shadow-sm);
    padding: 26px 24px; height: 100%;
    transition: box-shadow .25s ease, transform .25s ease;
  }
.guide-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.guide-card h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.guide-card p { font-size: .93rem; line-height: 1.75; color: #475569; margin-bottom: 0; }
.guide-ico {
    width: 44px; height: 44px; border-radius: 10px;
    background: linear-gradient(135deg, #eef2f7, #e2e8f0);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary); font-size: 1.15rem; margin-bottom: 16px;
  }
.tip-box {
    background: var(--card-bg); border-left: 4px solid var(--accent);
    border-radius: var(--radius); padding: 20px 22px; box-shadow: var(--shadow-sm);
    font-size: .94rem; line-height: 1.8; color: #475569;
  }
.tip-box strong { color: var(--text); }
.do-dont { display: flex; gap: 20px; flex-wrap: wrap; }
.do-dont > div { flex: 1 1 260px; }
.do-dont h4 { font-size: .98rem; font-weight: 700; margin-bottom: 12px; }
.do-dont ul { list-style: none; padding: 0; margin: 0; }
.do-dont li { font-size: .9rem; line-height: 1.7; color: #475569; padding-left: 24px; position: relative; margin-bottom: 8px; }
.do-dont li i { position: absolute; left: 0; top: 4px; }
.do-list i { color: #10b981; }
.dont-list i { color: #ef4444; }
.mini-note { font-size: .82rem; color: #94a3b8; margin-top: 6px; }

/* --- 子页面追加 --- */
.map-page .section-head h2 {
      font-family: var(--font-heading);
    }
.map-group {
      background: var(--card-bg);
      border: 1px solid var(--divider);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      padding: 1.6rem 1.5rem;
      height: 100%;
      transition: box-shadow .25s ease, transform .25s ease;
    }
.map-group:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }
.map-group h3 {
      font-family: var(--font-heading);
      font-size: 1.15rem;
      color: var(--text);
      margin-bottom: .35rem;
      display: flex;
      align-items: center;
      gap: .55rem;
    }
.map-group h3 i {
      color: var(--primary);
      font-size: 1rem;
    }
.map-group p.map-desc {
      color: var(--primary);
      font-size: .85rem;
      margin-bottom: 1rem;
      line-height: 1.6;
    }
.map-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
.map-list li {
      border-top: 1px dashed var(--divider);
    }
.map-list li:first-child {
      border-top: none;
    }
.map-list a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: .75rem;
      padding: .6rem .1rem;
      color: var(--text);
      text-decoration: none;
      font-size: .92rem;
      transition: color .2s ease, padding-left .2s ease;
    }
.map-list a:hover {
      color: var(--primary);
      padding-left: .35rem;
    }
.map-list a .map-path {
      font-family: 'Inter', monospace;
      font-size: .75rem;
      color: var(--accent);
      letter-spacing: .02em;
    }
.map-list a i {
      font-size: .7rem;
      color: var(--accent);
      margin-left: .4rem;
    }
.map-tip {
      background: var(--bg);
      border-left: 3px solid var(--primary);
      border-radius: var(--radius);
      padding: 1rem 1.2rem;
      font-size: .9rem;
      color: var(--text);
      line-height: 1.8;
    }
.map-tip strong {
      color: var(--primary);
    }
.map-anchor-list {
      display: flex;
      flex-wrap: wrap;
      gap: .6rem;
      margin-top: .9rem;
    }
.map-anchor-list a {
      display: inline-flex;
      align-items: center;
      gap: .4rem;
      padding: .4rem .85rem;
      border: 1px solid var(--divider);
      border-radius: 999px;
      font-size: .82rem;
      color: var(--text);
      text-decoration: none;
      background: var(--bg);
      transition: all .2s ease;
    }
.map-anchor-list a:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--card-bg);
    }

/* --- 子页面追加 --- */
.submit-form .form-row { margin-bottom: 1rem; }
.submit-form label { display:block; font-weight:600; font-size:.92rem; margin-bottom:.4rem; color:var(--text); }
.submit-form .req { color:#c0392b; margin-left:.2rem; }
.submit-form input[type="text"],
  .submit-form input[type="email"],
  .submit-form select,
  .submit-form textarea {
    width:100%; padding:.7rem .85rem; font-family:var(--font-body); font-size:.95rem;
    color:var(--text); background:var(--card-bg);
    border:1px solid var(--divider); border-radius:var(--radius);
    box-shadow:var(--shadow-sm); outline:none; transition:border-color .2s;
  }
.submit-form input:focus,
  .submit-form select:focus,
  .submit-form textarea:focus { border-color:var(--accent); }
.submit-form textarea { min-height:150px; resize:vertical; }
.submit-form .hint { font-size:.8rem; color:var(--primary); margin-top:.35rem; }
.form-notice { background:#fffbeb; border:1px solid #fde68a; border-radius:var(--radius); padding:.85rem 1rem; font-size:.86rem; color:#92400e; margin-bottom:1.4rem; }
.channel-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); gap:1rem; }
.channel-card { background:var(--card-bg); border:1px solid var(--divider); border-radius:var(--radius); box-shadow:var(--shadow-sm); padding:1.3rem 1.2rem; }
.channel-card i { font-size:1.4rem; color:var(--primary); margin-bottom:.6rem; display:block; }
.channel-card h4 { font-family:var(--font-heading); font-size:1.02rem; margin:0 0 .4rem; color:var(--text); }
.channel-card p { font-size:.86rem; color:var(--primary); margin:0; line-height:1.65; }
.check-list { list-style:none; padding:0; margin:0; }
.check-list li { position:relative; padding-left:1.7rem; margin-bottom:.7rem; font-size:.94rem; line-height:1.7; color:var(--text); }
.check-list li::before { content:"\f00c"; font-family:"Font Awesome 6 Free"; font-weight:900; position:absolute; left:0; top:.15rem; color:var(--accent); font-size:.82rem; }
.check-list.no li::before { content:"\f00d"; color:#c0392b; }
.step-flow { display:flex; flex-wrap:wrap; gap:1rem; }
.step-flow .step { flex:1 1 200px; background:var(--card-bg); border:1px solid var(--divider); border-radius:var(--radius); padding:1.1rem 1.1rem; box-shadow:var(--shadow-sm); }
.step-flow .step .num { font-family:var(--font-heading); font-size:1.6rem; color:var(--accent); line-height:1; margin-bottom:.5rem; }
.step-flow .step h4 { font-size:.98rem; margin:0 0 .35rem; color:var(--text); }
.step-flow .step p { font-size:.84rem; color:var(--primary); margin:0; line-height:1.65; }
.page-hero { text-align:left; }
.page-hero { text-align:center; }

/* --- 子页面追加 --- */
.privacy-hero {padding:72px 0 44px;background:linear-gradient(180deg,#e8edf3 0%,var(--bg) 100%);border-bottom:1px solid var(--divider);}
.privacy-hero h1 {font-family:var(--font-heading);font-weight:700;font-size:clamp(1.6rem,3.6vw,2.5rem);line-height:1.35;margin-bottom:.9rem;}
.privacy-hero .lead-note {color:#475569;max-width:760px;font-size:1rem;line-height:1.85;}
.meta-chip {display:inline-flex;align-items:center;gap:.45rem;background:var(--card-bg);border:1px solid var(--divider);border-radius:999px;padding:.35rem .85rem;font-size:.82rem;color:var(--primary);box-shadow:var(--shadow-sm);margin:0 .4rem .5rem 0;}
.policy-wrap {max-width:900px;margin:0 auto;}
.policy-card {background:var(--card-bg);border:1px solid var(--divider);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:1.6rem 1.6rem 1.4rem;margin-bottom:1.4rem;}
.policy-card h2 {font-family:var(--font-heading);font-size:1.22rem;font-weight:700;color:var(--text);margin-bottom:.85rem;display:flex;align-items:flex-start;gap:.6rem;line-height:1.5;}
.policy-card h2 i {color:var(--primary);font-size:1rem;margin-top:.28rem;flex:0 0 auto;}
.policy-card h3 {font-family:var(--font-heading);font-size:1.02rem;font-weight:700;color:#334155;margin:1.15rem 0 .55rem;}
.policy-card p,.policy-card li {font-size:.94rem;line-height:1.95;color:#334155;}
.policy-card p {margin-bottom:.7rem;}
.policy-card ul {padding-left:1.1rem;margin-bottom:.7rem;}
.policy-card ul li {margin-bottom:.4rem;}
.policy-card strong {color:var(--text);font-weight:600;}
.toc {background:var(--card-bg);border:1px solid var(--divider);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:1.2rem 1.4rem;margin-bottom:1.4rem;}
.toc-title {font-family:var(--font-heading);font-weight:700;font-size:1rem;margin-bottom:.7rem;color:var(--text);}
.toc-list {display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;padding:0;margin:0;}
.toc-list a {display:inline-block;font-size:.84rem;color:var(--primary);background:#f8fafc;border:1px solid var(--divider);border-radius:999px;padding:.3rem .8rem;text-decoration:none;transition:.2s;}
.toc-list a:hover {background:var(--primary);color:#fff;border-color:var(--primary);}
.note-box {background:#f8fafc;border-left:3px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;padding:.85rem 1rem;margin:1rem 0 .4rem;font-size:.9rem;color:#475569;line-height:1.85;}
.data-table {width:100%;border-collapse:collapse;margin:.8rem 0 .4rem;font-size:.88rem;}
.data-table th,.data-table td {border:1px solid var(--divider);padding:.6rem .75rem;text-align:left;vertical-align:top;line-height:1.7;}
.data-table th {background:#f8fafc;color:var(--text);font-weight:600;}
.data-table td {color:#475569;}
.contact-strip {background:var(--card-bg);border:1px solid var(--divider);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:1.4rem;display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;}
.contact-strip p {margin:0;font-size:.92rem;color:#475569;line-height:1.8;}
.privacy-hero {padding:52px 0 34px;}
.policy-card {padding:1.2rem 1.05rem;}
.data-table {font-size:.82rem;}
.data-table th,.data-table td {padding:.45rem .5rem;}

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