:root {
      --main: #059669;
      --accent: #14b8a6;
      --bg: #f0fdfa;
      --text: #134e4a;
      --border: #a7f3d0;
      --white: #ffffff;
    }

    * { box-sizing: border-box; }
    body {
      background: var(--bg);
      color: var(--text);
      font-family: 'Noto Sans SC', 'Inter', sans-serif;
      font-weight: 400;
      line-height: 1.6;
      overflow-x: hidden;
    }
    h1, h2, h3, h4, .serif-display {
      font-family: 'Noto Serif SC', serif;
      font-weight: 900;
      letter-spacing: 0.02em;
    }
    /* 极简无阴影,纯描边 */
    .no-shadow { box-shadow: none !important; border: 1px solid var(--border); }
    .border-soft { border: 1px solid var(--border) !important; }

    /* 渐变光晕背景 */
    .hero-glow {
      background: radial-gradient(circle at 15% 20%, rgba(20,184,166,0.12), transparent 45%),
                  radial-gradient(circle at 85% 70%, rgba(5,150,105,0.12), transparent 50%);
    }

    /* 导航 */
    .navbar-custom {
      background: rgba(240, 253, 250, 0.8);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--border);
    }
    .navbar-brand {
      font-family: 'Noto Serif SC', serif;
      font-weight: 900;
      font-size: 1.8rem;
      color: var(--main) !important;
      letter-spacing: 0.01em;
    }
    .navbar-brand i { color: var(--accent); margin-right: 6px; }
    .nav-link-custom {
      font-weight: 500;
      color: var(--text) !important;
      margin: 0 0.4rem;
      border-bottom: 2px solid transparent;
      transition: 0.2s;
    }
    .nav-link-custom:hover { border-bottom-color: var(--accent); }

    /* 大数字 hero */
    .hero-stats {
      display: flex;
      gap: 2.5rem;
      flex-wrap: wrap;
      justify-content: center;
    }
    .hero-stat-item h2 {
      font-size: 3.4rem;
      font-weight: 900;
      color: var(--main);
      line-height: 1.1;
    }
    .hero-stat-item span { font-size: 0.95rem; opacity: 0.75; }

    /* 对比表格 */
    .compare-table {
      width: 100%;
      border-collapse: collapse;
    }
    .compare-table th, .compare-table td {
      border: 1px solid var(--border);
      padding: 1.1rem 1.2rem;
      background-color: var(--white);
    }
    .compare-table th {
      background: var(--main);
      color: white;
      font-family: 'Noto Serif SC', serif;
      font-weight: 700;
      border-color: var(--main);
    }
    .compare-table td i.fa-check { color: var(--main); }
    .compare-table td i.fa-xmark { color: #e11d48; }

    /* 特色卡片 */
    .feature-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 2rem 1.6rem;
      transition: transform 0.2s ease, border-color 0.2s;
    }
    .feature-card:hover {
      transform: scale(1.02);
      border-color: var(--accent);
    }
    .feature-icon {
      font-size: 2.5rem;
      color: var(--main);
      margin-bottom: 1rem;
    }

    /* 手风琴 */
    .accordion-item {
      background: var(--white);
      border: 1px solid var(--border) !important;
      margin-bottom: 12px;
      border-radius: 16px !important;
      overflow: hidden;
    }
    .accordion-button:not(.collapsed) {
      background-color: rgba(20,184,166,0.08);
      color: var(--main);
      font-weight: 600;
    }
    .accordion-button:focus { box-shadow: none; border-color: var(--accent); }

    /* 滚动渐显 */
    .fade-up {
      opacity: 0;
      transform: translateY(25px);
      transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    }
    .fade-up.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* 回到顶部 */
    #backTop {
      position: fixed;
      right: 20px;
      bottom: 30px;
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: var(--main);
      color: white;
      border: none;
      opacity: 0;
      visibility: hidden;
      transition: 0.3s;
      z-index: 1000;
      font-size: 1.2rem;
      box-shadow: 0 2px 12px rgba(5,150,105,0.25);
    }
    #backTop.show { opacity: 1; visibility: visible; }

    .footer-links a {
      color: var(--text);
      text-decoration: none;
      border-bottom: 1px dotted var(--accent);
      margin: 0 0.4rem;
    }
    .friend-link-area {
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      padding: 2rem 0;
      margin-top: 3rem;
    }

    /* 延迟序列 */
    .delay-1 { transition-delay: 0.1s; }
    .delay-2 { transition-delay: 0.2s; }
    .delay-3 { transition-delay: 0.3s; }
    .delay-4 { transition-delay: 0.4s; }

    .btn-outline-main {
      border-color: var(--main);
      color: var(--main);
    }
    .btn-outline-main:hover { background: var(--main); color: white; }

    .section-title {
      font-size: 2.2rem;
      margin-bottom: 2rem;
      border-bottom: 2px solid var(--accent);
      display: inline-block;
      padding-bottom: 0.3rem;
    }

/* --- 子页面追加 --- */
/* 页面专属样式 */
        .about-hero {
            background: linear-gradient(135deg, rgba(5,150,105,.08) 0%, rgba(20,184,166,.12) 50%, rgba(240,253,250,.6) 100%);
            border-bottom: 1px solid var(--border);
            padding: 4rem 0 3rem;
        }
.about-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text);
            line-height: 1.3;
        }
.about-hero .lead {
            color: var(--text);
            opacity: .85;
            max-width: 680px;
        }
.about-section {
            padding: 3.5rem 0;
        }
.about-section:nth-of-type(even) {
            background: rgba(255,255,255,.55);
        }
.about-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 2rem 1.5rem;
            height: 100%;
            transition: transform .2s ease, box-shadow .2s ease;
        }
.about-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(5,150,105,.08);
        }
.about-card .icon-wrap {
            font-size: 2rem;
            color: var(--main);
            margin-bottom: 1rem;
        }
.about-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: .75rem;
        }
.about-card p {
            color: var(--text);
            opacity: .8;
            font-size: .95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
.timeline-list {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }
.timeline-list li {
            position: relative;
            padding-left: 2rem;
            padding-bottom: 1.75rem;
            color: var(--text);
            opacity: .88;
            line-height: 1.7;
        }
.timeline-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--main);
            border: 3px solid var(--border);
        }
.timeline-list li::after {
            content: '';
            position: absolute;
            left: 6px;
            top: 26px;
            width: 2px;
            height: calc(100% - 26px);
            background: var(--border);
        }
.timeline-list li:last-child::after {
            display: none;
        }
.timeline-list li strong {
            color: var(--main);
        }
.value-pill {
            display: inline-block;
            background: rgba(5,150,105,.1);
            color: var(--main);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: .3rem 1rem;
            font-size: .85rem;
            font-weight: 600;
            margin: 0 .35rem .5rem 0;
        }
.stat-box {
            text-align: center;
            padding: 1.5rem .75rem;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
        }
.stat-box .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--main);
            line-height: 1.2;
        }
.stat-box .label {
            font-size: .85rem;
            color: var(--text);
            opacity: .7;
            margin-top: .25rem;
        }
.about-cta {
            background: linear-gradient(135deg, var(--main) 0%, var(--accent) 100%);
            border-radius: 20px;
            padding: 3rem 2rem;
            text-align: center;
            color: #fff;
        }
.about-cta h2 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
.about-cta p {
            opacity: .9;
            margin-bottom: 1.5rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
.about-cta .btn-white {
            background: #fff;
            color: var(--main);
            font-weight: 600;
            border-radius: 50px;
            padding: .6rem 1.8rem;
            text-decoration: none;
            display: inline-block;
            transition: transform .2s;
        }
.about-cta .btn-white:hover {
            transform: scale(1.05);
        }
.about-hero h1 {
                font-size: 1.8rem;
            }
.about-hero {
                padding: 2.5rem 0 2rem;
            }
.about-section {
                padding: 2.5rem 0;
            }

/* --- 子页面追加 --- */
/* 本页专属小样式 */
        .disclaimer-section {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 2rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 4px 20px rgba(5, 150, 105, 0.06);
        }
.disclaimer-section h2 {
            color: var(--main);
            font-weight: 700;
            margin-bottom: 1.2rem;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
.disclaimer-section h2 i {
            color: var(--accent);
        }
.disclaimer-section p {
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 0.8rem;
        }
.disclaimer-section ul {
            padding-left: 1.5rem;
            color: var(--text);
            line-height: 1.9;
        }
.disclaimer-section ul li {
            margin-bottom: 0.4rem;
        }
.disclaimer-highlight {
            background: var(--bg);
            border-left: 4px solid var(--main);
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
.disclaimer-highlight p {
            margin-bottom: 0.4rem;
        }
.disclaimer-date {
            color: #64748b;
            font-size: 0.9rem;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed var(--border);
        }
.disclaimer-section {
                padding: 1.2rem;
            }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-body { background:transparent !important; color:#134e4a !important; }
.accordion-header { background:transparent !important; }