:root {
      --mc-primary: #64748b;
      --mc-accent: #94a3b8;
      --mc-bg: #f1f5f9;
      --mc-text: #1e293b;
      --mc-card-bg: #ffffff;
      --mc-radius-lg: 24px;
      --mc-radius-md: 18px;
      --mc-radius-sm: 12px;
      --mc-shadow: 0 12px 28px rgba(100, 116, 139, 0.12), 0 4px 12px rgba(30, 41, 59, 0.06);
      --mc-shadow-hover: 0 24px 48px rgba(100, 116, 139, 0.18), 0 8px 20px rgba(30, 41, 59, 0.08);
      --mc-transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
    }
    body {
      background-color: var(--mc-bg);
      color: var(--mc-text);
      font-family: 'Inter', system-ui, -apple-system, sans-serif;
      overflow-x: hidden;
    }
    /* 手写体标题 */
    .font-hand {
      font-family: 'ZCOOL KuaiLe', 'Comic Neue', 'Segoe Print', cursive;
      letter-spacing: 0.5px;
    }
    /* 柔和光晕背景 */
    .hero-glow {
      position: absolute;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle at 30% 30%, rgba(148, 163, 184, 0.3), transparent 70%);
      filter: blur(60px);
      border-radius: 50%;
      pointer-events: none;
      z-index: 0;
    }
    .glow-1 { top: -150px; right: -100px; }
    .glow-2 { bottom: -100px; left: -50px; background: radial-gradient(circle, rgba(100, 116, 139, 0.2), transparent 60%); }
    
    /* 大圆角卡片 */
    .rounded-card {
      border-radius: var(--mc-radius-lg);
      background: var(--mc-card-bg);
      box-shadow: var(--mc-shadow);
      transition: var(--mc-transition);
      border: none;
    }
    .rounded-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--mc-shadow-hover);
    }
    
    /* 导航栏 */
    .navbar-mc {
      background: rgba(241, 245, 249, 0.7);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(100, 116, 139, 0.15);
      transition: background 0.4s ease, box-shadow 0.3s ease;
      padding-top: 12px;
      padding-bottom: 12px;
    }
    .navbar-mc.scrolled {
      background: rgba(241, 245, 249, 0.92);
      box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    }
    .navbar-mc .navbar-brand {
      font-weight: 800;
      color: var(--mc-text);
      font-size: 1.6rem;
      letter-spacing: -0.5px;
      transition: color 0.2s;
    }
    .navbar-mc .navbar-brand i {
      color: var(--mc-primary);
      margin-right: 6px;
    }
    .navbar-mc .nav-link {
      font-weight: 500;
      color: var(--mc-text);
      opacity: 0.8;
      border-radius: 30px;
      padding: 8px 18px;
      margin: 0 2px;
      transition: all 0.2s;
    }
    .navbar-mc .nav-link:hover {
      opacity: 1;
      background: rgba(100, 116, 139, 0.08);
      color: var(--mc-primary);
    }
    
    /* Hero 打字机 */
    .typewriter {
      display: inline-block;
      white-space: nowrap;
      border-right: 3px solid var(--mc-primary);
      overflow: hidden;
      animation: blinkCursor 0.8s step-end infinite;
      font-size: clamp(2rem, 6vw, 3.5rem);
      font-weight: 700;
    }
    @keyframes blinkCursor {
      0%, 100% { border-color: var(--mc-primary); }
      50% { border-color: transparent; }
    }
    
    /* 数字滚动 */
    .counter-value {
      font-size: 3rem;
      font-weight: 800;
      color: var(--mc-primary);
      display: inline-block;
    }
    
    /* 对比表格 */
    .table-compare {
      border-radius: var(--mc-radius-lg);
      overflow: hidden;
      box-shadow: var(--mc-shadow);
    }
    .table-compare thead th {
      background: var(--mc-primary);
      color: white;
      font-weight: 600;
      border: none;
      padding: 18px 12px;
    }
    .table-compare tbody td {
      background: white;
      padding: 16px 12px;
      border-bottom: 1px solid #e9eef3;
      vertical-align: middle;
    }
    .table-compare .fa-check {
      color: var(--mc-primary);
    }
    .table-compare .fa-xmark {
      color: #cbd5e1;
    }
    
    /* 标签页切换 */
    .feature-tabs .nav-tabs {
      border-bottom: 2px solid #e2e8f0;
    }
    .feature-tabs .nav-link {
      border: none;
      color: var(--mc-text);
      font-weight: 500;
      padding: 12px 28px;
      border-radius: 40px;
      margin-right: 10px;
      background: transparent;
      transition: all 0.2s;
    }
    .feature-tabs .nav-link.active {
      background: var(--mc-primary);
      color: white;
    }
    
    /* 时间线 */
    .timeline {
      position: relative;
      padding-left: 30px;
    }
    .timeline::before {
      content: '';
      position: absolute;
      left: 8px;
      top: 0;
      height: 100%;
      width: 3px;
      background: linear-gradient(to bottom, var(--mc-primary), var(--mc-accent));
      border-radius: 3px;
    }
    .timeline-item {
      position: relative;
      margin-bottom: 28px;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: -27px;
      top: 8px;
      width: 16px;
      height: 16px;
      background: var(--mc-primary);
      border-radius: 50%;
      border: 3px solid white;
      box-shadow: 0 0 0 2px var(--mc-primary);
    }
    
    /* FAQ手风琴 */
    .accordion-mc .accordion-item {
      border: none;
      background: transparent;
      margin-bottom: 14px;
      border-radius: var(--mc-radius-md) !important;
      box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    }
    .accordion-mc .accordion-button {
      background: white;
      border-radius: var(--mc-radius-md) !important;
      font-weight: 600;
      color: var(--mc-text);
      box-shadow: none;
      padding: 18px 24px;
      font-size: 1.05rem;
    }
    .accordion-mc .accordion-button:not(.collapsed) {
      background: #f8fafc;
      color: var(--mc-primary);
      box-shadow: inset 0 -1px 0 #e2e8f0;
    }
    .accordion-mc .accordion-body {
      background: white;
      border-radius: 0 0 var(--mc-radius-md) var(--mc-radius-md);
      padding: 8px 24px 20px;
    }
    
    /* 友情链接 */
    .friend-links {
      border-radius: var(--mc-radius-lg);
      background: white;
      box-shadow: var(--mc-shadow);
      padding: 28px 30px;
    }
    
    /* CTA */
    .cta-banner {
      background: linear-gradient(135deg, #64748b 0%, #94a3b8 100%);
      border-radius: var(--mc-radius-lg);
      padding: 48px 20px;
      color: white;
      box-shadow: var(--mc-shadow);
    }
    
    footer {
      background: white;
      border-radius: 30px 30px 0 0;
      padding: 32px 0;
      margin-top: 60px;
      color: var(--mc-text);
    }
    
    /* 滚动动画 */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .reveal {
      animation: fadeUp 0.7s ease forwards;
      opacity: 0;
    }

/* --- 子页面追加 --- */
.page-hero {
      background: linear-gradient(135deg, #f1f5f9 0%, #e8edf5 50%, #dbe2ec 100%);
      padding: 4rem 0 3rem;
      border-bottom: 1px solid rgba(100, 116, 139, 0.15);
    }
.page-hero h1 {
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--mc-primary);
      line-height: 1.3;
    }
.page-hero .lead-text {
      color: var(--mc-text);
      opacity: 0.75;
      font-size: 1.05rem;
      max-width: 640px;
    }
.about-section {
      padding: 2rem 0;
    }
.about-card {
      background: var(--mc-card-bg);
      border-radius: var(--mc-radius-md);
      box-shadow: var(--mc-shadow);
      padding: 2rem;
      margin-bottom: 1.5rem;
      transition: var(--mc-transition);
    }
.about-card:hover {
      box-shadow: var(--mc-shadow-hover);
      transform: translateY(-2px);
    }
.about-card h2 {
      font-size: 1.45rem;
      font-weight: 700;
      color: var(--mc-primary);
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }
.about-card h2 i {
      color: var(--mc-accent);
    }
.about-card p {
      color: var(--mc-text);
      line-height: 1.8;
      opacity: 0.85;
      margin-bottom: 0.8rem;
    }
.about-card ul {
      padding-left: 1.2rem;
      color: var(--mc-text);
      opacity: 0.85;
      line-height: 1.8;
    }
.about-card ul li {
      margin-bottom: 0.4rem;
    }
.stats-row {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin: 1.5rem 0;
    }
.stat-item {
      flex: 1;
      min-width: 140px;
      background: var(--mc-bg);
      border-radius: var(--mc-radius-sm);
      padding: 1.2rem;
      text-align: center;
    }
.stat-item .stat-num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--mc-primary);
      line-height: 1.2;
    }
.stat-item .stat-label {
      font-size: 0.85rem;
      color: var(--mc-text);
      opacity: 0.7;
      margin-top: 0.3rem;
    }
.icon-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, #e8edf5 0%, #dbe2ec 100%);
      color: var(--mc-primary);
      font-size: 1.4rem;
      flex-shrink: 0;
    }
.timeline-mc {
      border-left: 3px solid var(--mc-accent);
      padding-left: 1.5rem;
      margin-left: 0.5rem;
    }
.timeline-mc-item {
      position: relative;
      padding-bottom: 1.5rem;
    }
.timeline-mc-item:before {
      content: '';
      position: absolute;
      left: -1.9rem;
      top: 0.3rem;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--mc-primary);
      border: 2px solid var(--mc-bg);
    }
.timeline-mc-item .t-year {
      font-weight: 700;
      color: var(--mc-primary);
      font-size: 0.95rem;
    }
.timeline-mc-item .t-desc {
      color: var(--mc-text);
      opacity: 0.8;
      font-size: 0.95rem;
      line-height: 1.6;
      margin-top: 0.2rem;
    }

/* --- 子页面追加 --- */
/* 本页专属补充样式 */
        .legal-section {
            background: var(--mc-card-bg);
            border-radius: var(--mc-radius-lg);
            padding: 2.5rem;
            margin-bottom: 2rem;
            box-shadow: var(--mc-shadow);
            transition: var(--mc-transition);
        }
.legal-section:hover {
            box-shadow: var(--mc-shadow-hover);
            transform: translateY(-4px);
        }
.legal-section h2 {
            color: var(--mc-text);
            font-weight: 700;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
.legal-section h2 i {
            color: var(--mc-primary);
            font-size: 1.25rem;
            width: 2rem;
            height: 2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(100, 116, 139, 0.1);
            border-radius: 50%;
        }
.legal-section p {
            color: #475569;
            line-height: 1.8;
            margin-bottom: 1rem;
        }
.legal-section ul {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
.legal-section ul li {
            color: #475569;
            line-height: 1.8;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 0.5rem;
        }
.legal-section ul li::before {
            content: '▸';
            color: var(--mc-primary);
            position: absolute;
            left: -1rem;
            font-weight: 700;
        }
.legal-section strong {
            color: var(--mc-text);
            font-weight: 600;
        }
.legal-badge {
            display: inline-block;
            background: rgba(100, 116, 139, 0.08);
            color: var(--mc-primary);
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }
.legal-updated {
            background: linear-gradient(135deg, rgba(100, 116, 139, 0.05), rgba(100, 116, 139, 0.1));
            border-radius: var(--mc-radius-md);
            padding: 1rem 1.5rem;
            color: #64748b;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
.legal-updated i {
            color: var(--mc-primary);
        }
.legal-section {
                padding: 1.5rem;
            }

/* --- 子页面追加 --- */
/* 隐私政策页面专属样式 */
        .privacy-hero {
            background: linear-gradient(135deg, var(--mc-primary) 0%, #7c8ba1 100%);
            padding: 60px 0 40px;
            position: relative;
            overflow: hidden;
        }
.privacy-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
            animation: float 8s ease-in-out infinite;
        }
.privacy-hero h1 {
            color: #fff;
            font-weight: 800;
            font-size: 2.8rem;
            position: relative;
            z-index: 1;
        }
.privacy-hero p {
            color: rgba(255,255,255,0.9);
            font-size: 1.1rem;
            position: relative;
            z-index: 1;
        }
.privacy-section {
            padding: 40px 0;
        }
.privacy-card {
            background: var(--mc-card-bg);
            border-radius: var(--mc-radius-lg);
            padding: 40px;
            box-shadow: var(--mc-shadow);
            margin-bottom: 30px;
            transition: var(--mc-transition);
        }
.privacy-card:hover {
            box-shadow: var(--mc-shadow-hover);
            transform: translateY(-4px);
        }
.privacy-card h2 {
            color: var(--mc-primary);
            font-weight: 700;
            font-size: 1.6rem;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 3px solid var(--mc-accent);
            display: inline-block;
        }
.privacy-card h3 {
            color: var(--mc-text);
            font-weight: 600;
            font-size: 1.2rem;
            margin-top: 25px;
            margin-bottom: 12px;
        }
.privacy-card p, .privacy-card li {
            color: var(--mc-text);
            line-height: 1.8;
            font-size: 0.95rem;
        }
.privacy-card ul {
            padding-left: 20px;
        }
.privacy-card li {
            margin-bottom: 8px;
            position: relative;
        }
.privacy-card li::marker {
            color: var(--mc-accent);
        }
.privacy-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--mc-radius-md);
            background: linear-gradient(135deg, var(--mc-primary) 0%, var(--mc-accent) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            box-shadow: var(--mc-shadow);
        }
.privacy-icon i {
            color: #fff;
            font-size: 1.6rem;
        }
.privacy-highlight {
            background: var(--mc-bg);
            border-left: 4px solid var(--mc-primary);
            padding: 20px 25px;
            border-radius: 0 var(--mc-radius-md) var(--mc-radius-md) 0;
            margin: 20px 0;
        }
.privacy-highlight p {
            margin-bottom: 0;
        }
.privacy-updated {
            text-align: center;
            color: var(--mc-accent);
            font-size: 0.9rem;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid var(--mc-accent);
        }
.contact-list {
            list-style: none;
            padding-left: 0 !important;
        }
.contact-list li {
            padding: 8px 0;
        }
.contact-list li i {
            color: var(--mc-primary);
            margin-right: 12px;
            width: 20px;
        }
.privacy-hero h1 {
                font-size: 2rem;
            }
.privacy-card {
                padding: 25px;
            }
.privacy-card h2 {
                font-size: 1.3rem;
            }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.table { color:#1e293b !important; border-color:rgba(0,0,0,.12) !important; --bs-table-bg:transparent !important; --bs-table-color:#1e293b !important; }
.accordion-header { background:transparent !important; }