:root {
    --main: #059669;
    --accent: #14b8a6;
    --bg: #f0fdfa;
    --text: #134e4a;
    --text-light: #5b8a85;
    --border-color: #bfe8e0;
    --white: #ffffff;
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  body {
    font-family: 'Inter', 'Noto Sans SC', 'Source Han Sans CN', '思源黑体', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.8;
    font-weight: 400;
    letter-spacing: 0.02em;
    position: relative;
  }

  /* 顶部噪点纹理 */
  body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 250 250' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: 'Noto Serif SC', 'Source Han Serif SC', '思源宋体', serif;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: 0.02em;
  }

  p {
    color: var(--text);
    font-size: 1.05rem;
  }

  a {
    text-decoration: none;
    color: var(--main);
    transition: color 0.2s;
  }
  a:hover {
    color: var(--accent);
  }

  /* 导航 */
  .navbar {
    background-color: rgba(240, 253, 250, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 2px solid var(--border-color);
    padding: 0.9rem 0;
  }
  .navbar-brand {
    font-family: 'Noto Serif SC', '思源宋体', serif;
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--main) !important;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .navbar-brand i {
    color: var(--accent);
    font-size: 1.8rem;
  }
  .navbar .nav-link {
    color: var(--text);
    font-weight: 500;
    margin: 0 0.4rem;
    padding: 0.4rem 0.6rem !important;
    border-bottom: 2px solid transparent;
    transition: all 0.25s;
  }
  .navbar .nav-link:hover {
    color: var(--main);
    border-bottom-color: var(--accent);
  }
  .navbar-toggler {
    border: 2px solid var(--border-color);
    color: var(--main);
  }
  .navbar-toggler:focus {
    box-shadow: none;
  }

  /* Hero */
  .hero {
    position: relative;
    padding: 6.5rem 0 5rem;
    overflow: hidden;
    background: linear-gradient(135deg, #f0fdfa 0%, #d5f5ef 100%);
  }
  .hero .floating-element {
    position: absolute;
    border: 2px solid var(--accent);
    border-radius: 12px;
    opacity: 0.15;
    animation: floatUp 9s infinite ease-in-out;
  }
  .hero .float-1 {
    width: 90px; height: 90px; top: 18%; left: 6%; transform: rotate(12deg);
  }
  .hero .float-2 {
    width: 60px; height: 60px; top: 60%; right: 10%; border-radius: 50%; animation-delay: 2s;
  }
  .hero .float-3 {
    width: 45px; height: 45px; bottom: 15%; left: 18%; border-radius: 8px; animation-delay: 4s;
  }
  @keyframes floatUp {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-22px) rotate(6deg); }
  }
  .hero-badge {
    display: inline-block;
    background: rgba(20, 184, 166, 0.12);
    color: var(--main);
    border: 1.5px solid var(--accent);
    border-radius: 50px;
    padding: 0.3rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 1.2rem;
  }
  .hero h1 {
    font-size: 3.2rem;
    font-weight: 900;
    background: linear-gradient(120deg, var(--main) 10%, var(--accent) 55%, #0f766e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.2rem;
    line-height: 1.3;
  }
  .hero .lead {
    font-size: 1.2rem;
    color: var(--text);
    max-width: 640px;
    margin: 0 auto 2rem;
    opacity: 0.9;
  }
  .hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: var(--main);
    color: white;
    border: 2px solid var(--main);
    padding: 0.75rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.05rem;
    transition: all 0.3s;
  }
  .hero-cta:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    transform: translateY(-3px);
  }

  /* 区块通用 */
  .section {
    padding: 5rem 0;
    border-bottom: 2px solid var(--border-color);
  }
  .section-title {
    font-size: 2.1rem;
    font-weight: 800;
    margin-bottom: 0.8rem;
    color: var(--text);
    position: relative;
  }
  .section-subtitle {
    color: var(--text-light);
    font-size: 1.05rem;
    margin-bottom: 2.5rem;
  }

  /* 特色标签页 */
  .feature-tabs .nav-tabs {
    border-bottom: 2px solid var(--border-color);
    gap: 0.5rem;
  }
  .feature-tabs .nav-link {
    border: 2px solid var(--border-color);
    border-radius: 8px 8px 0 0;
    background: transparent;
    color: var(--text);
    font-weight: 600;
    padding: 0.6rem 1.4rem;
    transition: all 0.25s;
    border-bottom: none;
  }
  .feature-tabs .nav-link.active {
    background: var(--white);
    border-color: var(--main) var(--main) var(--white);
    color: var(--main);
  }
  .feature-tabs .nav-link i {
    margin-right: 8px;
    color: var(--accent);
  }
  .feature-panel {
    background: var(--white);
    border: 2px solid var(--border-color);
    border-top: none;
    padding: 2.5rem;
    border-radius: 0 0 12px 12px;
  }
  .feature-item {
    display: flex;
    gap: 1.2rem;
    padding: 1.2rem 0;
    border-bottom: 1px solid #d9f0ea;
  }
  .feature-item:last-child {
    border-bottom: none;
  }
  .feature-item i {
    font-size: 1.8rem;
    color: var(--main);
    width: 50px;
    text-align: center;
    flex-shrink: 0;
  }
  .feature-item h5 {
    font-weight: 700;
    margin-bottom: 0.3rem;
  }
  .feature-item p {
    color: var(--text-light);
    margin-bottom: 0;
  }

  /* 时间线 */
  .timeline-section {
    position: relative;
  }
  .timeline {
    position: relative;
    padding: 2rem 0;
    margin-left: 30px;
  }
  .timeline::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--main), var(--accent), transparent);
    border-radius: 10px;
  }
  .timeline-item {
    position: relative;
    padding-left: 2.5rem;
    margin-bottom: 3rem;
  }
  .timeline-item:last-child {
    margin-bottom: 0;
  }
  .timeline-item::before {
    content: "";
    position: absolute;
    left: -7px;
    top: 6px;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background: var(--bg);
    border: 4px solid var(--main);
    z-index: 2;
  }
  .timeline-item .timeline-date {
    display: inline-block;
    background: var(--white);
    border: 2px solid var(--border-color);
    color: var(--main);
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.2rem 1rem;
    margin-bottom: 0.7rem;
  }
  .timeline-item h4 {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text);
  }
  .timeline-item p {
    color: var(--text-light);
  }

  /* 卡片 hover */
  .hover-card {
    border: 2px solid var(--border-color);
    background: var(--white);
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
  }
  .hover-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 30px rgba(5, 150, 105, 0.12);
    border-color: var(--accent);
  }
  .hover-card .card-body {
    padding: 1.5rem;
  }
  .hover-card .card-title {
    font-weight: 700;
    color: var(--text);
  }

  /* FAQ */
  .faq-section .accordion-item {
    background: var(--white);
    border: 2px solid var(--border-color) !important;
    border-radius: 10px !important;
    margin-bottom: 1rem;
    overflow: hidden;
  }
  .faq-section .accordion-button {
    background: var(--white);
    color: var(--text);
    font-weight: 600;
    font-size: 1.05rem;
    padding: 1.2rem 1.5rem;
    box-shadow: none;
    border-bottom: 1px solid #d9f0ea;
  }
  .faq-section .accordion-button:not(.collapsed) {
    background: rgba(20, 184, 166, 0.06);
    color: var(--main);
  }
  .faq-section .accordion-button:focus {
    box-shadow: none;
    border: none;
  }
  .faq-section .accordion-button::after {
    color: var(--main);
  }
  .faq-section .accordion-body {
    padding: 1.2rem 1.5rem;
    color: var(--text);
  }

  /* CTA */
  .cta-section {
    background: linear-gradient(140deg, #f0fdfa 0%, #d5f5ef 100%);
    border-bottom: 2px solid var(--border-color);
  }
  .cta-box {
    background: var(--white);
    border: 2px solid var(--main);
    border-radius: 18px;
    padding: 3rem 2rem;
    text-align: center;
  }
  .cta-box h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.8rem;
  }
  .cta-box p {
    color: var(--text-light);
    max-width: 500px;
    margin: 0 auto 1.8rem;
  }
  .btn-cta {
    background: var(--main);
    color: #fff;
    border: 2px solid var(--main);
    padding: 0.7rem 2.2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
  }
  .btn-cta:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(5, 150, 105, 0.2);
  }

  /* 友情链接 */
  .friend-links {
    background: var(--bg);
    border-bottom: 2px solid var(--border-color);
    padding: 2.5rem 0;
  }
  .friend-links h6 {
    font-weight: 700;
    color: var(--text);
    margin-bottom: 1rem;
    font-size: 1rem;
    letter-spacing: 0.08em;
  }
  .friend-links .link-item {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-right: 1.5rem;
    border-bottom: 1px solid transparent;
    transition: all 0.2s;
  }
  .friend-links .link-item:hover {
    color: var(--main);
    border-bottom-color: var(--main);
  }

  /* 页脚 */
  .site-footer {
    background: var(--bg);
    padding: 2.5rem 0 2rem;
    color: var(--text);
  }
  .site-footer .footer-brand {
    font-family: 'Noto Serif SC', serif;
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--main);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 0.6rem;
  }
  .site-footer .footer-links {
    margin-bottom: 1.2rem;
  }
  .site-footer .footer-links a {
    color: var(--text-light);
    margin: 0 0.8rem;
    font-size: 0.95rem;
  }
  .site-footer .footer-links a:hover {
    color: var(--main);
  }
  .site-footer .copyright {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 1rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.2rem;
  }

  /* 图片懒加载占位 */
  .img-placeholder {
    background: linear-gradient(120deg, #e0f2f0 25%, #f8fffe 38%, #e0f2f0 63%);
    background-size: 400% 100%;
    animation: shimmer 1.4s infinite;
    min-height: 180px;
    border-radius: 8px;
  }
  @keyframes shimmer {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
  }
  .card-img-top {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: #dff5f1;
  }

  /* 滚动渐显 */
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.show {
    opacity: 1;
    transform: translateY(0);
  }

  /* Hero 视差背景 */
  .parallax-bg {
    position: absolute;
    top: -30%;
    left: 0;
    width: 100%;
    height: 140%;
    background: radial-gradient(circle at 20% 40%, rgba(20,184,166,0.12) 0%, transparent 45%),
                radial-gradient(circle at 80% 70%, rgba(5,150,105,0.10) 0%, transparent 40%);
    z-index: 0;
  }

  @media (max-width: 768px) {
    .hero h1 {
      font-size: 2.4rem;
    }
    .hero .lead {
      font-size: 1.05rem;
    }
    .section {
      padding: 3.5rem 0;
    }
    .feature-panel {
      padding: 1.5rem;
    }
    .timeline {
      margin-left: 15px;
    }
    .navbar-brand {
      font-size: 1.35rem;
    }
  }

/* --- 子页面追加 --- */
/* 确保所有组件与配色一致 (Bootstrap 覆盖) */
    body {
      background-color: var(--bg);
      color: var(--text);
      font-family: 'Inter', 'Noto Sans SC', 'Source Han Sans CN', '思源黑体', sans-serif;
    }
.navbar-brand, .navbar-nav .nav-link {
      color: var(--text) !important;
    }
.navbar-nav .nav-link:hover {
      color: var(--main) !important;
    }
/* 卡片与面板背景 */
    .feature-panel, .hover-card, .timeline-item, .cta-box {
      background-color: var(--white);
      border: 1px solid var(--border-color);
      border-radius: 20px;
      box-shadow: 0 8px 20px rgba(5, 150, 105, 0.06);
    }
.friend-links a {
      color: var(--main);
      text-decoration: none;
      margin-right: 15px;
    }
/* 本页特有的小卡片 */
    .about-panel {
      background: var(--white);
      border: 1px solid var(--border-color);
      border-radius: 24px;
      padding: 2rem;
      transition: transform .2s;
    }
.about-panel:hover {
      transform: translateY(-4px);
    }
.about-icon {
      color: var(--main);
      font-size: 2rem;
      margin-bottom: 1rem;
    }
.badge-soft {
      background: rgba(5, 150, 105, 0.12);
      color: var(--main);
      font-weight: 600;
    }

/* --- 子页面追加 --- */
/* 本页专属样式(仅补充,不覆盖全局) */
        .disclaimer-hero {
            background: linear-gradient(135deg, rgba(5,150,105,.08) 0%, rgba(20,184,166,.05) 100%);
            border-bottom: 1px solid var(--border-color);
        }
.disclaimer-section {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 2rem 2.5rem;
            margin-bottom: 1.5rem;
            transition: box-shadow .3s ease;
        }
.disclaimer-section:hover {
            box-shadow: 0 8px 30px rgba(5,150,105,.08);
        }
.disclaimer-section h2 {
            color: var(--main);
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: .6rem;
        }
.disclaimer-section h2 i {
            font-size: 1.1rem;
            color: var(--accent);
        }
.disclaimer-section p, .disclaimer-section li {
            color: var(--text);
            line-height: 1.8;
            font-size: .95rem;
        }
.disclaimer-section ul {
            padding-left: 1.2rem;
        }
.disclaimer-section li {
            margin-bottom: .5rem;
        }
.disclaimer-highlight {
            background: rgba(5,150,105,.05);
            border-left: 4px solid var(--main);
            padding: 1rem 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
.disclaimer-highlight p {
            margin: 0;
            color: var(--text);
        }
.disclaimer-section {
                padding: 1.5rem 1.2rem;
            }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .guide-hero {
            background: linear-gradient(135deg, var(--main) 0%, var(--accent) 100%);
            color: var(--white);
            padding: 80px 0 60px;
            text-align: center;
            border-radius: 0 0 30px 30px;
        }
.guide-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
.guide-hero p {
            font-size: 1.2rem;
            opacity: 0.95;
            max-width: 700px;
            margin: 0 auto;
            color: rgba(255,255,255,0.9);
        }
.guide-section {
            padding: 70px 0;
        }
.guide-section-alt {
            background: var(--white);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
.guide-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px 28px;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
.guide-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 32px rgba(5, 150, 105, 0.12);
        }
.guide-card-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--main), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 1.4rem;
            margin-bottom: 20px;
        }
.guide-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.4;
        }
.guide-card p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
.guide-step {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            margin-bottom: 28px;
            padding: 22px;
            background: var(--bg);
            border-radius: 14px;
            border: 1px solid var(--border-color);
            transition: border-color 0.3s ease;
        }
.guide-step:hover {
            border-color: var(--main);
        }
.guide-step-num {
            width: 40px;
            height: 40px;
            min-width: 40px;
            border-radius: 50%;
            background: var(--main);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }
.guide-step-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
.guide-step-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.6;
            margin-bottom: 0;
        }
.guide-tip {
            background: rgba(5, 150, 105, 0.08);
            border-left: 4px solid var(--main);
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 28px 0;
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.7;
        }
.guide-tip i {
            color: var(--main);
            margin-right: 8px;
        }
.guide-compare {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 28px;
            margin-bottom: 24px;
        }
.guide-compare h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
        }
.guide-compare ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
.guide-compare li {
            padding: 8px 0;
            color: var(--text-light);
            font-size: 0.93rem;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
.guide-compare li i {
            color: var(--main);
            margin-top: 3px;
            font-size: 0.85rem;
        }
.guide-hero {
                padding: 60px 0 45px;
            }
.guide-hero h1 {
                font-size: 2rem;
            }
.guide-hero p {
                font-size: 1rem;
            }
.guide-section {
                padding: 50px 0;
            }
.guide-card {
                margin-bottom: 20px;
            }

/* --- 子页面追加 --- */
/* 排行榜页面专属样式 */
        .ranking-hero {
            background: linear-gradient(135deg, #059669 0%, #14b8a6 100%);
            padding: 80px 0 60px;
            margin-bottom: 50px;
        }
.ranking-hero h1 {
            color: #fff;
            font-weight: 800;
            font-size: 2.8rem;
            margin-bottom: 15px;
        }
.ranking-hero p {
            color: rgba(255,255,255,.9);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }
.ranking-section {
            margin-bottom: 60px;
        }
.ranking-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
.ranking-title i {
            color: var(--main);
        }
.ranking-card {
            background: var(--white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 20px;
            margin-bottom: 15px;
            transition: transform .3s, box-shadow .3s;
            display: flex;
            align-items: center;
            gap: 20px;
        }
.ranking-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(5,150,105,.1);
        }
.ranking-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--main);
            min-width: 50px;
            text-align: center;
        }
.ranking-number.hot {
            color: #ef4444;
        }
.ranking-number.new {
            color: var(--accent);
        }
.ranking-info {
            flex: 1;
        }
.ranking-info h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 5px;
        }
.ranking-info .meta {
            color: var(--text-light);
            font-size: .9rem;
        }
.ranking-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
.ranking-tag {
            background: var(--bg);
            color: var(--main);
            padding: 3px 10px;
            border-radius: 20px;
            font-size: .8rem;
            font-weight: 500;
        }
.ranking-stats {
            text-align: right;
            color: var(--text-light);
            font-size: .9rem;
        }
.ranking-stats .fa-heart {
            color: #ef4444;
        }
.ranking-stats .fa-eye {
            color: var(--accent);
        }
.ranking-banner {
            background: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            gap: 20px;
        }
.ranking-banner i {
            font-size: 2.5rem;
            color: var(--main);
        }
.ranking-banner p {
            color: var(--text);
            margin: 0;
            font-size: .95rem;
        }
.ranking-banner strong {
            color: var(--main);
        }
.tabs-btn {
            background: var(--bg);
            border: 1px solid var(--border-color);
            color: var(--text);
            padding: 8px 20px;
            border-radius: 20px;
            margin-right: 10px;
            font-weight: 500;
            transition: all .3s;
            cursor: pointer;
        }
.tabs-btn.active, .tabs-btn:hover {
            background: var(--main);
            color: #fff;
            border-color: var(--main);
        }
.tab-content-item {
            display: none;
        }
.tab-content-item.active {
            display: block;
        }
.ranking-hero h1 {
                font-size: 2rem;
            }
.ranking-card {
                flex-direction: column;
                align-items: flex-start;
            }
.ranking-stats {
                text-align: left;
                margin-top: 10px;
            }
.ranking-banner {
                flex-direction: column;
                text-align: center;
            }

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