:root {
      --main: #16a34a;
      --accent: #84cc16;
      --bg: #f7fee7;
      --text: #1a2e05;
      --light-green: #dcfce7;
      --shadow-sm: 0 4px 12px rgba(26, 46, 5, 0.08);
      --radius-card: 18px;
      --radius-btn: 999px;
    }
    * { box-sizing: border-box; }
    body {
      background-color: var(--bg);
      color: var(--text);
      font-family: 'Inter', system-ui, -apple-system, sans-serif;
      font-size: 0.95rem;
      line-height: 1.5;
    }
    h1, h2, h3, .display-6 { font-weight: 800; letter-spacing: -0.02em; }
    h2 { font-size: 1.9rem; font-weight: 800; }
    .text-muted-green { color: #3f6212; }
    .bg-soft-green { background-color: var(--light-green); }

    /* 导航栏 */
    .navbar-51 {
      backdrop-filter: blur(10px);
      background: rgba(247, 254, 231, 0.85) !important;
      border-bottom: 1px solid rgba(22, 163, 74, 0.15);
      transition: background 0.3s, box-shadow 0.3s;
    }
    .navbar-51.scrolled {
      background: rgba(247, 254, 231, 0.95) !important;
      box-shadow: 0 6px 20px rgba(22, 163, 74, 0.12);
    }
    .navbar-brand-51 {
      font-weight: 900;
      font-size: 1.5rem;
      color: var(--main) !important;
      letter-spacing: -0.02em;
    }
    .navbar-51 .nav-link {
      font-weight: 600;
      color: var(--text);
      padding: 0.5rem 1rem;
      border-radius: var(--radius-btn);
      transition: all 0.2s;
    }
    .navbar-51 .nav-link:hover { color: var(--main); background: var(--light-green); }

    /* 胶囊 & 按钮 */
    .btn-capsule {
      border-radius: var(--radius-btn);
      padding: 0.6rem 1.8rem;
      font-weight: 600;
      background: var(--main);
      border: none;
      color: white;
      transition: 0.2s;
    }
    .btn-capsule:hover { background: #15803d; color: white; }

    /* hero 标签云 */
    .tag-cloud span {
      display: inline-block;
      background: white;
      border: 1px solid #bbf7d0;
      padding: 0.4rem 1rem;
      border-radius: var(--radius-btn);
      font-weight: 500;
      font-size: 0.9rem;
      box-shadow: var(--shadow-sm);
      margin: 0.2rem;
      color: #14532d;
    }

    /* 卡片网格 */
    .feature-card {
      background: white;
      border-radius: var(--radius-card);
      padding: 1.3rem;
      box-shadow: var(--shadow-sm);
      border: 1px solid #e9f9e1;
      transition: transform 0.2s;
    }
    .feature-card:hover { transform: translateY(-3px); }

    /* 步骤条 */
    .step-item {
      background: white;
      border-radius: var(--radius-card);
      padding: 1.2rem;
      box-shadow: var(--shadow-sm);
      border-left: 6px solid var(--accent);
    }
    .step-num {
      font-family: 'JetBrains Mono', 'Courier New', monospace;
      font-weight: 800;
      color: var(--main);
      font-size: 1.8rem;
      line-height: 1;
    }

    /* 数字统计等宽 */
    .stat-number {
      font-family: 'JetBrains Mono', 'Courier New', monospace;
      font-weight: 700;
      font-size: 2.3rem;
      color: var(--main);
      letter-spacing: -1px;
    }

    /* 波浪分隔 */
    .wave-divider {
      position: relative;
      height: 60px;
      background: linear-gradient(135deg, var(--bg) 30%, transparent 30%) 0 0/30px 30px,
                  linear-gradient(225deg, var(--bg) 30%, transparent 30%) 0 0/30px 30px;
      background-color: white;
    }
    .section-wave-top {
      margin-top: -2px;
    }

    /* 通用卡片 */
    .content-card {
      background: white;
      border-radius: var(--radius-card);
      padding: 1.5rem;
      box-shadow: var(--shadow-sm);
      border: 1px solid #f0f9eb;
    }

    /* 友情链接区域 */
    .friend-links {
      background: #ecfccb;
      border-radius: var(--radius-card);
      padding: 1.8rem;
      margin: 2rem 0;
    }

    /* 图片懒加载占位渐显 */
    img.lazy-img {
      background: #e2e8f0;
      opacity: 0;
      transition: opacity 0.4s;
      width: 100%;
      height: auto;
      border-radius: 16px;
    }
    img.lazy-img.loaded { opacity: 1; }

    /* hover 播放按钮 */
    .poster-hover {
      position: relative;
      overflow: hidden;
      border-radius: 16px;
      cursor: pointer;
    }
    .play-overlay {
      position: absolute;
      inset: 0;
      background: rgba(22, 163, 74, 0.35);
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      transition: opacity 0.25s;
    }
    .poster-hover:hover .play-overlay { opacity: 1; }
    .play-circle {
      width: 55px;
      height: 55px;
      background: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--main);
      font-size: 1.5rem;
      box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    }

    /* 紧凑排版 */
    .dense-text { font-size: 0.9rem; }
    .small-list li { margin-bottom: 0.3rem; font-size: 0.9rem; }

    footer {
      background: #eaffdd;
      border-top: 2px solid #b9e6a2;
    }
    .footer-link { color: #2f4b0e; text-decoration: none; font-weight: 500; }
    .footer-link:hover { color: var(--main); }

/* --- 子页面追加 --- */
/* 本页专属微调样式 —— 仅补充，不覆盖全局变量 */
        .about-hero {
            background: linear-gradient(135deg, var(--light-green) 0%, #ffffff 60%);
            border-bottom: 2px solid rgba(22, 163, 74, 0.15);
        }
.about-hero h1 {
            font-size: 2.6rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: var(--text);
        }
.about-hero .lead {
            font-size: 1.15rem;
            color: #3f6212;
            max-width: 720px;
        }
.section-title-51 {
            position: relative;
            padding-bottom: 12px;
            margin-bottom: 28px;
            font-weight: 800;
            color: var(--text);
        }
.section-title-51::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 56px;
            height: 4px;
            background: var(--main);
            border-radius: 4px;
        }
.info-card {
            background: #ffffff;
            border: 1px solid rgba(22, 163, 74, 0.15);
            border-radius: var(--radius-card);
            padding: 28px;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }
.info-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(22, 163, 74, 0.12);
            border-color: rgba(22, 163, 74, 0.35);
        }
.info-card i {
            font-size: 2.2rem;
            color: var(--main);
            margin-bottom: 16px;
            display: inline-block;
        }
.info-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
.info-card p {
            font-size: 0.95rem;
            line-height: 1.7;
            color: #3f6212;
            margin-bottom: 0;
        }
.principle-list {
            list-style: none;
            padding: 0;
        }
.principle-list li {
            padding: 14px 0;
            border-bottom: 1px dashed rgba(22, 163, 74, 0.2);
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
.principle-list li:last-child { border-bottom: none; }
.principle-list .num-badge {
            background: var(--main);
            color: #fff;
            border-radius: 50%;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
            margin-top: 2px;
        }
.principle-list li div {
            flex: 1;
        }
.principle-list h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text);
        }
.principle-list p {
            font-size: 0.92rem;
            color: #3f6212;
            margin: 0;
            line-height: 1.6;
        }
.stat-block {
            background: var(--light-green);
            border-radius: var(--radius-card);
            padding: 32px;
            border: 1px solid rgba(22, 163, 74, 0.2);
        }
.stat-block .stat-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--main);
        }
.stat-block .stat-label {
            font-size: 0.9rem;
            color: #3f6212;
            font-weight: 500;
        }
.timeline-item {
            position: relative;
            padding-left: 32px;
            margin-bottom: 28px;
        }
.timeline-item::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            width: 12px;
            height: 12px;
            background: var(--main);
            border-radius: 50%;
        }
.timeline-item::after {
            content: '';
            position: absolute;
            left: 13px;
            top: 20px;
            width: 2px;
            height: calc(100% + 8px);
            background: rgba(22, 163, 74, 0.2);
        }
.timeline-item:last-child::after { display: none; }
.timeline-item .time {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--main);
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }
.timeline-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 4px 0 6px;
            color: var(--text);
        }
.timeline-item p {
            font-size: 0.92rem;
            color: #3f6212;
            margin: 0;
            line-height: 1.6;
        }
.workflow-step {
            background: #f0fdf4;
            border: 1px solid rgba(22, 163, 74, 0.15);
            border-radius: 16px;
            padding: 24px;
            text-align: center;
            height: 100%;
            transition: all 0.25s;
        }
.workflow-step:hover {
            background: var(--light-green);
            box-shadow: var(--shadow-sm);
        }
.workflow-step .step-icon {
            font-size: 2rem;
            color: var(--main);
            margin-bottom: 14px;
        }
.workflow-step h5 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 8px;
            color: var(--text);
        }
.workflow-step p {
            font-size: 0.85rem;
            color: #3f6212;
            margin: 0;
        }
.cta-box {
            background: linear-gradient(135deg, var(--main) 0%, var(--accent) 100%);
            border-radius: 24px;
            padding: 48px 32px;
            color: #fff;
            text-align: center;
        }
.cta-box h2 {
            font-weight: 800;
            font-size: 1.8rem;
            margin-bottom: 12px;
            color: #fff;
        }
.cta-box p {
            color: rgba(255,255,255,0.9);
            max-width: 560px;
            margin: 0 auto 24px;
            font-size: 1rem;
        }

/* --- 子页面追加 --- */
/* 本页极少量专属微调，不破坏整体风格 */
        .legal-hero {
            background: linear-gradient(145deg, var(--light-green) 0%, var(--bg) 100%);
            border-bottom: 2px solid rgba(132, 204, 22, 0.2);
        }
.legal-card {
            background: rgba(255,255,255,0.55);
            backdrop-filter: blur(2px);
            border: 1px solid rgba(22, 163, 74, 0.15);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: transform .2s ease, box-shadow .2s ease;
        }
.legal-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 24px rgba(26, 46, 5, 0.08);
        }
.legal-card h3 i {
            color: var(--main);
            margin-right: 0.5rem;
            width: 1.6rem;
            text-align: center;
        }
.legal-card p, .legal-card li {
            color: #2d3f1f;
            font-size: 0.96rem;
            line-height: 1.7;
        }
.legal-card ul {
            padding-left: 1.2rem;
        }
.legal-card li {
            margin-bottom: 0.3rem;
        }
.badge-51 {
            background: var(--main);
            color: white;
            font-weight: 600;
            border-radius: 50px;
            padding: 0.25rem 0.8rem;
            font-size: 0.75rem;
            display: inline-block;
            letter-spacing: 0.3px;
        }
.footer-note {
            border-top: 1px solid rgba(22, 163, 74, 0.2);
            padding-top: 1.2rem;
            margin-top: 1.5rem;
            font-size: 0.85rem;
            color: #3b5a1a;
        }
.navbar-51 .nav-link.active {
            font-weight: 700;
            color: var(--main) !important;
        }

/* --- 子页面追加 --- */
/* 本页专属微调，与站点CSS无缝融合 */
        .policy-section {
            padding: 2.5rem 0;
        }
.policy-title {
            font-weight: 800;
            color: var(--main);
            margin-bottom: 1rem;
            font-size: 1.75rem;
            letter-spacing: -0.01em;
            position: relative;
            display: inline-block;
        }
.policy-title:after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
        }
.policy-card {
            background: rgba(255, 255, 255, 0.4);
            backdrop-filter: blur(2px);
            border: 1px solid rgba(22, 163, 74, 0.15);
            border-radius: var(--radius-card);
            padding: 2rem 2rem 1.5rem;
            box-shadow: var(--shadow-sm);
            margin-bottom: 1.5rem;
            transition: all 0.2s ease;
        }
.policy-card:hover {
            border-color: var(--main);
            box-shadow: 0 6px 20px rgba(22, 163, 74, 0.08);
        }
.policy-card h3 {
            color: var(--main);
            font-weight: 700;
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
.policy-card h3 i {
            color: var(--accent);
            font-size: 1.3rem;
        }
.policy-card p, .policy-card li {
            color: var(--text);
            line-height: 1.8;
            font-size: 0.98rem;
        }
.policy-card ul {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
.policy-card ul li {
            list-style-type: disc;
            margin-bottom: 0.3rem;
        }
.policy-card .highlight {
            background: var(--light-green);
            padding: 0.2rem 0.6rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.9rem;
            color: #14532d;
            display: inline-block;
        }
.privacy-updated {
            background: var(--light-green);
            border-left: 6px solid var(--main);
            padding: 0.8rem 1.5rem;
            border-radius: 18px;
            font-weight: 500;
            color: #14532d;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 2.5rem;
            font-size: 0.95rem;
        }
.friend-links .footer-link {
            margin-right: 1.2rem;
        }
/* 覆盖bootstrap可能带来的冲突 */
        .navbar-51 .nav-link {
            background: transparent;
        }