/* 拟物厚重风 + 科技蓝白 */
    :root {
      --primary: #2563eb;
      --accent: #06b6d4;
      --bg: #f8fafc;
      --text: #0f172a;
      --white: #ffffff;
      --shadow-heavy: 0 15px 35px -10px rgba(37, 99, 235, 0.2), 0 8px 20px rgba(6, 182, 212, 0.15);
      --shadow-card: 0 12px 30px -8px rgba(2, 6, 23, 0.15), 0 4px 8px rgba(0,0,0,0.02);
      --border-light: 1px solid rgba(255,255,255,0.6);
    }
    body {
      background: var(--bg);
      color: var(--text);
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
      overflow-x: hidden;
    }
    h1, h2, h3, .display-strong {
      font-weight: 800;
      letter-spacing: -0.02em;
    }
    .text-gradient {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    /* 波浪 / 斜切分割 */
    .wave-divider {
      position: relative;
      width: 100%;
      height: 80px;
      background: linear-gradient(0deg, var(--bg) 20%, transparent 100%);
    }
    .wave-divider::before {
      content: "";
      position: absolute;
      left: 0; right: 0; top: -40px;
      height: 80px;
      background: radial-gradient(circle at 50% -20%, var(--accent) 20%, transparent 60%);
      opacity: 0.1;
    }
    .slant-section {
      clip-path: polygon(0 0, 100% 6%, 100% 100%, 0 94%);
      padding: 4rem 0;
      background: var(--white);
      box-shadow: inset 0 10px 20px rgba(0,0,0,0.02);
    }
    .slant-section-accent {
      clip-path: polygon(0 6%, 100% 0, 100% 94%, 0 100%);
      background: linear-gradient(145deg, #ffffff 0%, #f1f5f9 100%);
    }
    /* 拟物按钮 & 卡片厚重投影 */
    .btn-3d {
      box-shadow: 0 8px 0 var(--primary), 0 12px 20px -8px rgba(37,99,235,0.5);
      transition: transform 0.12s, box-shadow 0.2s;
      font-weight: 600;
    }
    .btn-3d:hover {
      transform: translateY(4px);
      box-shadow: 0 4px 0 var(--primary), 0 10px 16px -8px rgba(37,99,235,0.5);
    }
    .btn-accent-3d {
      box-shadow: 0 8px 0 #0e7490, 0 12px 20px -8px rgba(6,182,212,0.5);
    }
    .btn-accent-3d:hover {
      transform: translateY(4px);
      box-shadow: 0 4px 0 #0e7490, 0 8px 14px -6px rgba(6,182,212,0.5);
    }
    .card-heavy {
      background: var(--white);
      border-radius: 28px;
      box-shadow: var(--shadow-card);
      border: var(--border-light);
      backdrop-filter: blur(2px);
      transition: all 0.25s ease;
    }
    .card-heavy:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-heavy);
    }
    /* 时间线/步骤条 横向 */
    .timeline-h {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      justify-content: center;
      position: relative;
    }
    .timeline-step {
      flex: 1 1 180px;
      background: rgba(255,255,255,0.75);
      backdrop-filter: blur(4px);
      padding: 1.5rem 1rem;
      border-radius: 24px;
      border: 1px solid rgba(37,99,235,0.15);
      box-shadow: 0 10px 20px -8px rgba(0,0,0,0.1);
      position: relative;
      transition: 0.2s;
    }
    .timeline-step:hover {
      border-color: var(--accent);
      box-shadow: 0 18px 30px -10px rgba(6,182,212,0.3);
    }
    .timeline-step::after {
      content: "→";
      position: absolute;
      right: -1rem;
      top: 30%;
      font-size: 1.8rem;
      color: var(--primary);
      font-weight: 900;
      opacity: 0.5;
      text-shadow: 0 2px 6px rgba(37,99,235,0.2);
    }
    .timeline-step:last-child::after { content: none; }
    /* 对比表格 */
    .compare-table {
      border-collapse: separate;
      border-spacing: 0 10px;
      width: 100%;
    }
    .compare-table td, .compare-table th {
      background: white;
      padding: 1.2rem;
      border: 1px solid rgba(15,23,42,0.05);
      box-shadow: 0 4px 8px rgba(0,0,0,0.02);
    }
    .compare-table th {
      background: var(--primary);
      color: white;
      font-weight: 600;
    }
    /* 编号清单 */
    .numbered-list {
      counter-reset: custom-counter;
      list-style: none;
      padding-left: 0;
    }
    .numbered-list li {
      counter-increment: custom-counter;
      padding: 0.8rem 0 0.8rem 3rem;
      position: relative;
      font-weight: 500;
      border-bottom: 1px dashed rgba(15,23,42,0.1);
    }
    .numbered-list li::before {
      content: counter(custom-counter) ".";
      position: absolute;
      left: 0;
      font-size: 2rem;
      font-weight: 800;
      background: linear-gradient(145deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.2;
    }
    /* 回到顶部按钮 */
    #toTop {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: var(--primary);
      color: white;
      border: none;
      font-size: 1.4rem;
      box-shadow: 0 8px 20px rgba(37,99,235,0.4);
      z-index: 999;
      opacity: 0;
      visibility: hidden;
      transition: 0.3s;
    }
    #toTop.show {
      opacity: 1;
      visibility: visible;
    }
    /* 卡片滚动渐显 */
    .reveal-card {
      opacity: 0;
      transform: translateY(40px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    .reveal-card.revealed {
      opacity: 1;
      transform: translateY(0);
    }
    /* 海报hover播放按钮 */
    .poster-hover {
      position: relative;
      overflow: hidden;
      border-radius: 20px;
      background: #d9e2f0;
      min-height: 180px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-card);
    }
    .poster-hover .play-btn {
      position: absolute;
      width: 60px; height: 60px;
      background: rgba(255,255,255,0.85);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      color: var(--primary);
      opacity: 0;
      transform: scale(0.8);
      transition: 0.2s;
      backdrop-filter: blur(2px);
      border: 2px solid white;
    }
    .poster-hover:hover .play-btn {
      opacity: 1;
      transform: scale(1);
    }
    /* 导航固定 */
    .navbar-glass {
      background: rgba(248,250,252,0.8);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(37,99,235,0.1);
      box-shadow: 0 5px 20px -5px rgba(0,0,0,0.03);
    }
    .navbar-brand {
      font-weight: 900;
      font-size: 1.8rem;
      letter-spacing: -0.03em;
    }
    .navbar-brand i {
      color: var(--primary);
      margin-right: 6px;
    }
    footer {
      background: var(--text);
      color: rgba(255,255,255,0.7);
    }
    .footer-links a {
      color: rgba(255,255,255,0.7);
      text-decoration: none;
    }
    .footer-links a:hover { color: white; }
    .friend-links {
      background: var(--bg);
      border-top: 1px solid rgba(0,0,0,0.05);
    }
    /* 锚点平滑滚动 */
    html { scroll-behavior: smooth; }

/* --- 子页面追加 --- */
/* 本页专属样式——合并进站点CSS */
        .about-hero { padding: 140px 0 80px; background: linear-gradient(135deg, rgba(37,99,235,0.08) 0%, rgba(6,182,212,0.05) 100%); }
.section-tag { display: inline-block; padding: 6px 18px; border-radius: 30px; background: rgba(37,99,235,0.1); color: var(--primary); font-size: 13px; font-weight: 700; letter-spacing: 0.5px; margin-bottom: 16px; }
.stat-card { background: var(--white); border-radius: 20px; padding: 30px 20px; text-align: center; box-shadow: var(--shadow-card); transition: transform 0.3s ease, box-shadow 0.3s ease; border: var(--border-light); }
.stat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-heavy); }
.stat-number { font-size: 42px; font-weight: 900; background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 14px; color: rgba(15,23,42,0.6); font-weight: 600; margin-top: 8px; }
.about-card { background: var(--white); border-radius: 20px; padding: 35px; box-shadow: var(--shadow-card); border: var(--border-light); height: 100%; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.about-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-heavy); }
.about-icon { width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 20px; background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(6,182,212,0.1)); color: var(--primary); }
.milestone-item { position: relative; padding-left: 30px; margin-bottom: 35px; }
.milestone-item::before { content: ''; position: absolute; left: 0; top: 8px; width: 14px; height: 14px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 0 0 4px rgba(37,99,235,0.15); }
.milestone-item::after { content: ''; position: absolute; left: 6px; top: 30px; bottom: -20px; width: 2px; background: linear-gradient(to bottom, var(--primary), transparent); }
.milestone-item:last-child::after { display: none; }
.milestone-year { font-size: 13px; font-weight: 800; color: var(--primary); letter-spacing: 1px; text-transform: uppercase; }
.milestone-title { font-size: 17px; font-weight: 700; margin: 5px 0 8px; color: var(--text); }
.milestone-desc { font-size: 14px; color: rgba(15,23,42,0.65); line-height: 1.7; }
.value-tag { display: inline-block; padding: 4px 14px; border-radius: 20px; font-size: 12px; font-weight: 700; margin: 3px 4px; }
.value-tag-primary { background: rgba(37,99,235,0.1); color: var(--primary); }
.value-tag-accent { background: rgba(6,182,212,0.1); color: var(--accent); }
.quote-block { background: linear-gradient(135deg, rgba(37,99,235,0.05), rgba(6,182,212,0.05)); border-left: 4px solid var(--primary); border-radius: 0 16px 16px 0; padding: 30px; margin: 40px 0; }
.quote-text { font-size: 18px; font-style: italic; color: rgba(15,23,42,0.8); font-weight: 500; }
.quote-author { font-size: 14px; font-weight: 700; color: var(--primary); margin-top: 12px; }
.platform-card { background: var(--white); border-radius: 16px; padding: 24px; box-shadow: var(--shadow-card); border: var(--border-light); text-align: center; height: 100%; transition: all 0.3s ease; }
.platform-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-heavy); }
.platform-icon { font-size: 28px; margin-bottom: 12px; color: var(--primary); }
.platform-name { font-size: 15px; font-weight: 700; color: var(--text); }
.platform-count { font-size: 22px; font-weight: 900; color: var(--primary); }
.slant-section::before { content: ''; position: absolute; top: -60px; left: 0; right: 0; height: 120px; background: linear-gradient(135deg, transparent 50%, var(--bg) 50%); pointer-events: none; }
from { opacity: 0; transform: translateY(30px); }
to { opacity: 1; transform: translateY(0); }

/* --- 子页面追加 --- */
/* 本页专属微调：仅针对免责声明页的排版细节，沿用站点变量 */
        .disclaimer-hero {
            background: linear-gradient(135deg, var(--bg) 0%, rgba(6,182,212,0.1) 100%);
            border-bottom: 2px solid rgba(37,99,235,0.15);
        }
.disclaimer-section {
            padding: 4rem 0;
        }
.disclaimer-section h2 {
            color: var(--text);
            font-weight: 700;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
.disclaimer-section h2 i {
            color: var(--primary);
            font-size: 1.8rem;
        }
.disclaimer-card {
            background: var(--white);
            border-radius: 16px;
            padding: 2rem;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
.disclaimer-card p, .disclaimer-card li {
            color: #334155;
            line-height: 1.8;
        }
.disclaimer-card strong {
            color: var(--text);
        }
.disclaimer-list {
            padding-left: 1.25rem;
            list-style-type: disc;
        }
.disclaimer-list li {
            margin-bottom: 0.6rem;
        }
.highlight-tag {
            background: rgba(37,99,235,0.08);
            color: var(--primary);
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-size: 0.85rem;
            display: inline-block;
            margin-right: 0.5rem;
            border: 1px solid rgba(37,99,235,0.2);
        }
.update-time {
            font-size: 0.9rem;
            color: #64748b;
            border-top: 1px solid #e2e8f0;
            padding-top: 1rem;
            margin-top: 1.5rem;
        }
.disclaimer-card {
                padding: 1.5rem;
            }
/* 确保 bootstrap 卡片等不会白底黑字（本页未用，但保险起见覆盖） */
        .card, .card-body, .form-control, .list-group-item {
            background: var(--white);
            color: var(--text);
        }

/* --- 子页面追加 --- */
/* 确保 Bootstrap 组件与站点配色一致 */
        .card, .card-body, .card-title, .card-text, .card-header, .card-footer,
        .form-control, .form-select, .form-label, .input-group-text,
        .table, .list-group-item, .accordion-item, .accordion-button, .accordion-body,
        .modal-content, .modal-header, .modal-body, .dropdown-menu, .dropdown-item,
        .nav-link, .navbar, .navbar-brand, .btn-light, .btn-outline-* {
            background: var(--white);
            color: var(--text);
            border-color: rgba(15, 23, 42, 0.1);
        }
/* 但导航栏需要半透明玻璃效果，且背景深色 */
        .navbar-glass {
            background: rgba(15, 23, 42, 0.85) !important;
            backdrop-filter: blur(12px);
        }
.navbar-glass .nav-link, .navbar-glass .navbar-brand {
            color: var(--white) !important;
        }
.navbar-glass .nav-link.active {
            color: var(--accent) !important;
            font-weight: 600;
        }
/* 页面卡片悬停效果沿用 card-heavy */
        .card-heavy {
            transition: transform .2s ease, box-shadow .2s ease;
        }
/* 工具表样式 */
        .tool-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.25rem;
        }
.tool-item {
            background: var(--white);
            border-radius: 1rem;
            padding: 1.5rem 1rem;
            text-align: center;
            border: 1px solid rgba(37, 99, 235, 0.15);
            box-shadow: var(--shadow-card);
            transition: transform .2s;
        }
.tool-item:hover {
            transform: translateY(-3px);
        }
.tool-item i {
            font-size: 2rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
.tool-item h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-top: .8rem;
            color: var(--text);
        }
.tool-item p {
            font-size: .85rem;
            color: #4b5563;
            margin-bottom: 0;
        }
/* 步骤时间线 */
        .timeline-step {
            border-left: 3px solid var(--accent);
            padding-left: 1.5rem;
            margin-bottom: 2rem;
            position: relative;
        }
.timeline-step::before {
            content: '';
            position: absolute;
            left: -8px;
            top: 6px;
            width: 13px;
            height: 13px;
            background: var(--primary);
            border-radius: 50%;
            border: 2px solid var(--white);
            box-shadow: 0 0 0 2px var(--accent);
        }
.timeline-step h3 {
            font-weight: 700;
            color: var(--text);
        }
.timeline-step p {
            color: #374151;
        }
.badge-soft {
            background: rgba(6, 182, 212, 0.12);
            color: var(--primary);
            padding: .3rem .8rem;
            border-radius: 2rem;
            font-size: .8rem;
            font-weight: 500;
        }
.table-custom th {
            background: var(--primary);
            color: white;
            font-weight: 500;
        }
.table-custom td, .table-custom th {
            padding: 1rem;
            border-bottom: 1px solid rgba(15,23,42,.08);
        }
/* 锚点偏移 */
        section {
            scroll-margin-top: 80px;
        }

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