:root {
      --main: #818cf8;
      --accent: #c084fc;
      --bg: #1e1b4b;
      --text: #e0e7ff;
      --radius: 0px; /* 全直角 */
      --border-w: 3px;
      --shadow: 8px 8px 0px 0px rgba(0,0,0,0.3);
      --font-head: 'Inter', sans-serif;
      --font-mono: 'SFMono-Regular', Consolas, 'Courier New', monospace;
    }

    * { border-radius: var(--radius) !important; }

    body {
      background-color: var(--bg);
      color: var(--text);
      font-family: var(--font-head);
      font-size: 0.95rem;
      line-height: 1.5;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(192,132,252,0.15) 0%, transparent 25%),
        radial-gradient(circle at 90% 70%, rgba(129,140,248,0.18) 0%, transparent 30%),
        radial-gradient(circle at 40% 90%, rgba(192,132,252,0.1) 0%, transparent 20%);
      background-attachment: fixed;
    }

    /* 硬朗边框与阴影 */
    .hard-border {
      border: var(--border-w) solid var(--text) !important;
      box-shadow: var(--shadow);
    }

    /* 导航栏 */
    .navbar-91 {
      background-color: rgba(30, 27, 75, 0.9);
      backdrop-filter: blur(10px);
      border-bottom: 3px solid var(--text);
      transition: all 0.2s ease;
      z-index: 999;
    }
    .navbar-91.scrolled {
      background-color: rgba(30, 27, 75, 0.75) !important;
      backdrop-filter: blur(16px);
      border-bottom-color: var(--main);
      box-shadow: 0 6px 18px rgba(0,0,0,0.4);
    }
    .navbar-91 .nav-link {
      color: var(--text);
      font-weight: 600;
      margin: 0 0.2rem;
      border: 2px solid transparent;
      padding: 0.3rem 0.6rem;
    }
    .navbar-91 .nav-link:hover {
      border-color: var(--main);
      color: #fff;
    }
    .navbar-brand {
      font-weight: 900;
      font-size: 1.5rem;
      letter-spacing: -0.5px;
      color: var(--text);
    }
    .navbar-brand i {
      color: var(--accent);
      margin-right: 6px;
    }

    /* 区块标题 */
    .section-title {
      font-weight: 900;
      text-transform: uppercase;
      border-left: 10px solid var(--main);
      padding-left: 1rem;
      margin: 2rem 0 1.2rem 0;
      font-size: 1.8rem;
      letter-spacing: 2px;
    }
    .section-title span { color: var(--accent); }

    /* Hero 渐变文字 + 浮动装饰 */
    .hero-gradient-text {
      font-weight: 900;
      background: linear-gradient(135deg, var(--main), var(--accent), #f0abfc);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      display: inline-block;
      font-size: 4.5rem;
      letter-spacing: -1px;
      line-height: 1.2;
    }
    .float-deco {
      position: absolute;
      width: 120px;
      height: 120px;
      background: var(--accent);
      opacity: 0.2;
      filter: blur(50px);
      border-radius: 0;
      z-index: -1;
      animation: float 5s infinite alternate ease-in-out;
    }
    @keyframes float {
      0% { transform: translateY(-20px); opacity: 0.1; }
      100% { transform: translateY(30px); opacity: 0.4; }
    }

    /* 卡片错落滚动渐显 */
    .reveal-card {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s cubic-bezier(0.2, 0.9, 0.3, 1), transform 0.7s cubic-bezier(0.2, 0.9, 0.3, 1);
      transition-delay: 0.1s;
    }
    .reveal-card.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .reveal-card:nth-child(2) { transition-delay: 0.2s; }
    .reveal-card:nth-child(3) { transition-delay: 0.3s; }
    .reveal-card:nth-child(4) { transition-delay: 0.4s; }
    .reveal-card:nth-child(5) { transition-delay: 0.5s; }

    /* 图片hover放大 */
    .hover-zoom {
      overflow: hidden;
    }
    .hover-zoom img {
      transition: transform 0.4s ease;
      width: 100%;
      height: auto;
    }
    .hover-zoom:hover img {
      transform: scale(1.08);
    }
    .image-mask {
      position: relative;
    }
    .image-mask::after {
      content: attr(data-caption);
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(0deg, rgba(30,27,75,0.95) 0%, transparent 100%);
      color: white;
      padding: 1.2rem 0.8rem 0.6rem 0.8rem;
      font-weight: 700;
      opacity: 0;
      transition: opacity 0.3s;
      font-size: 0.9rem;
      pointer-events: none;
    }
    .image-mask:hover::after {
      opacity: 1;
    }

    /* 对比表格硬朗风格 */
    .table-91 {
      border-collapse: collapse;
      width: 100%;
    }
    .table-91 th, .table-91 td {
      border: 3px solid var(--text);
      padding: 0.8rem 1rem;
      background-color: rgba(30, 27, 75, 0.7);
      font-size: 0.9rem;
    }
    .table-91 th {
      background-color: var(--main);
      color: #1e1b4b;
      font-weight: 800;
      text-transform: uppercase;
    }
    .table-91 td:first-child {
      font-family: var(--font-mono);
      font-weight: 700;
    }

    /* 手风琴 */
    .accordion-91 .accordion-item {
      background: transparent;
      border: 3px solid var(--text);
      margin-bottom: 0.8rem;
      box-shadow: var(--shadow);
    }
    .accordion-91 .accordion-button {
      background-color: var(--bg);
      color: var(--text);
      font-weight: 700;
      font-size: 1rem;
      border: none;
      box-shadow: none;
      text-transform: uppercase;
    }
    .accordion-91 .accordion-button:not(.collapsed) {
      background-color: var(--main);
      color: #1e1b4b;
    }
    .accordion-91 .accordion-body {
      background-color: rgba(30, 27, 75, 0.5);
      border-top: 3px solid var(--text);
      font-family: var(--font-mono);
    }

    /* 图标列表 */
    .feature-item {
      display: flex;
      gap: 1rem;
      background: rgba(30,27,75,0.7);
      border: 3px solid var(--text);
      box-shadow: var(--shadow);
      padding: 1rem;
      margin-bottom: 1rem;
      transition: all 0.2s;
    }
    .feature-item:hover {
      background: rgba(129,140,248,0.2);
    }
    .feature-item i {
      font-size: 2rem;
      color: var(--accent);
    }

    /* 页脚 + 友链 */
    .footer-91 {
      border-top: 6px solid var(--text);
      background-color: rgba(30, 27, 75, 0.8);
      padding: 2rem 0;
      margin-top: 3rem;
      color: var(--text);
    }
    .link-block-91 {
      border: 3px dashed var(--main);
      padding: 1.5rem;
      background: rgba(129,140,248,0.08);
    }

    /* 数据等宽 */
    .mono-data {
      font-family: var(--font-mono);
      background: #0e0a2f;
      padding: 0.2rem 0.5rem;
      border: 2px solid var(--main);
    }

    /* 锚点偏移 */
    .anchor-offset { scroll-margin-top: 80px; }

    /* 移动端适配 */
    @media (max-width: 768px) {
      .hero-gradient-text { font-size: 2.8rem; }
      .navbar-brand { font-size: 1.1rem; }
      .section-title { font-size: 1.4rem; }
    }

/* --- 子页面追加 --- */
/* 页面专属微调样式 */
        .about-hero { padding: 80px 0 40px; }
.about-section { padding: 40px 0; border-bottom: var(--border-w) solid var(--main); }
.about-section:last-of-type { border-bottom: none; }
.about-card { background: rgba(255,255,255,0.03); border: var(--border-w) solid var(--main); padding: 30px; margin-bottom: 30px; }
.about-card h3 { font-family: var(--font-head); font-weight: 700; color: var(--accent); margin-bottom: 16px; }
.about-card p { color: var(--text); line-height: 1.8; font-size: 1.05rem; }
.about-card ul { padding-left: 20px; }
.about-card li { color: var(--text); margin-bottom: 10px; line-height: 1.7; }
.stat-block { background: rgba(129,140,248,0.1); border-left: var(--border-w) solid var(--accent); padding: 20px 24px; margin: 20px 0; }
.stat-block .mono-data { font-size: 2.2rem; font-weight: 800; color: var(--main); }
.stat-block p { margin-bottom: 0; font-size: 0.95rem; }
.quote-block { border-left: var(--border-w) solid var(--accent); padding: 20px 28px; background: rgba(192,132,252,0.05); margin: 30px 0; font-style: italic; font-size: 1.1rem; }
.feature-list { list-style: none; padding-left: 0; }
.feature-list li { padding: 8px 0; border-bottom: 1px solid rgba(129,140,248,0.2); }
.feature-list li i { color: var(--accent); margin-right: 12px; width: 20px; }
.timeline-item { display: flex; gap: 20px; margin-bottom: 20px; }
.timeline-dot { flex-shrink: 0; width: 16px; height: 16px; background: var(--accent); transform: rotate(45deg); margin-top: 6px; }
.timeline-content { flex: 1; }
.timeline-content h4 { color: var(--main); font-weight: 600; margin-bottom: 6px; }
.timeline-content p { margin-bottom: 0; font-size: 0.95rem; }
.value-card { text-align: center; padding: 30px 20px; border: var(--border-w) solid var(--main); background: rgba(255,255,255,0.02); height: 100%; }
.value-card i { font-size: 2.5rem; color: var(--accent); margin-bottom: 15px; }
.value-card h4 { color: var(--main); font-weight: 700; margin-bottom: 12px; }
.value-card p { font-size: 0.95rem; }
.nav-link.active { color: var(--accent) !important; font-weight: 700; }

/* --- 子页面追加 --- */
/* 覆盖 Bootstrap 可能带来的白底黑字 */
    .card, .card-body, .form-control, .form-select, .list-group-item, .accordion-item, .accordion-button {
      background: var(--card-bg, #26245c);
      color: var(--text);
      border-color: var(--border-color, #4c4699);
    }
.form-control::placeholder { color: rgba(224, 231, 255, 0.6); }
.navbar, .navbar-brand, .nav-link { background: transparent; color: var(--text); }
.btn-light { background: var(--main); border-color: var(--main); color: #1e1b4b; }
.btn-outline-primary { border-color: var(--accent); color: var(--accent); }
.btn-outline-primary:hover { background: var(--accent); color: #1e1b4b; }
/* 订阅卡片特有 */
    .sub-tier { background: rgba(30, 27, 75, 0.7); backdrop-filter: blur(2px); }
.sub-tier:hover { box-shadow: var(--shadow); transform: translateY(-4px); transition: 0.2s; }
/* 价格表 */
    .price-badge { background: var(--accent); color: #1e1b4b; font-weight: 700; }
/* 小标题一律带品牌名或具体信息 */
    .section-subtitle { font-weight: 800; letter-spacing: -0.02em; }
/* 直角+粗边框 */
    .hard-border { border: var(--border-w) solid var(--main); box-shadow: var(--shadow); }
.link-block-91:hover { border-left-color: var(--main); }

/* --- 子页面追加 --- */
/* 保持与全局变量一致，不引入额外组件类 */
        .disclaimer-section {
            margin-top: 2rem;
            margin-bottom: 2.5rem;
        }
.disclaimer-section p, .disclaimer-section li {
            font-size: 0.98rem;
            line-height: 1.75;
            color: var(--text);
        }
.disclaimer-section h2, .disclaimer-section h3 {
            margin-top: 2.2rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }
.disclaimer-section ul {
            padding-left: 1.5rem;
        }
.disclaimer-section li {
            margin-bottom: 0.6rem;
        }
/* 强制覆盖 Bootstrap 可能带的白底 */
        .table-91, .table-91 th, .table-91 td {
            background: transparent !important;
            color: var(--text) !important;
        }
/* 确保无白块 */
        .disclaimer-section a {
            color: var(--main);
            font-weight: 500;
        }
.disclaimer-section a:hover {
            color: var(--accent);
        }

/* --- 子页面追加 --- */
/* 强制覆盖 Bootstrap 白底黑字，全部对齐站点配色 */
        .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: transparent !important;
            color: var(--text) !important;
            border-color: var(--border-color) !important;
        }
/* 自定义排行卡片覆盖 */
        .rank-card {
            background: var(--card-bg, #1e1b4b);
            color: var(--text);
            border: var(--border-w) solid var(--main);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 1.2rem 1.5rem;
            margin-bottom: 1.5rem;
            transition: transform .2s;
        }
.rank-card:hover {
            transform: translateY(-4px);
        }
.rank-number {
            font-family: var(--font-mono);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            margin-right: 1.2rem;
            line-height: 1;
        }
.rank-title {
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text);
            margin-bottom: .3rem;
        }
.rank-meta {
            font-family: var(--font-mono);
            font-size: .85rem;
            color: var(--main);
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
.rank-desc {
            margin-top: .6rem;
            color: var(--text);
            opacity: .85;
            font-size: .95rem;
        }
.badge-91 {
            background: var(--accent);
            color: #1e1b4b;
            padding: .15rem .6rem;
            font-family: var(--font-mono);
            font-weight: 600;
            font-size: .8rem;
            border-radius: 0;
        }
/* 导航高亮 */
        .navbar-nav .nav-link.active-91 {
            color: var(--accent) !important;
            border-bottom: 3px solid var(--accent);
        }
.fa-arrow-up { color: var(--accent); }
.fa-arrow-down { color: var(--main); }
.hot-badge { background: rgba(129,140,248,.2); color: var(--accent); border: 1px solid var(--accent); }

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