/* ============ 全局重置 ============ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(135deg, #f9f7f0 0%, #e8e4d9 100%);
  color: #333;
  line-height: 1.6;
  min-height: 100vh;
  padding: 20px;
}

/* ============ 容器 ============ */
.container {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

/* ============ 标题 ============ */
.brand {
  font-size: 2.4rem;
  font-weight: 700;
  margin: 40px 0 16px;
  color: #2c3e50;
  letter-spacing: 1px;
}

.subtitle {
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 50px;
  font-style: italic;
}

/* ============ 模块卡片 ============ */
.modules {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  margin-bottom: 50px;
}

.module-card {
  background: white;
  border-radius: 16px;
  padding: 32px 24px;
  width: 240px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
}

.module-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.12);
}

.module-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.module-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #2c3e50;
}

.module-desc {
  font-size: 0.95rem;
  color: #7f8c8d;
}

/* 颜色区分 */
.zen { border-top: 4px solid #3498db; }
.zen .module-icon { color: #3498db; }

.tao { border-top: 4px solid #27ae60; }
.tao .module-icon { color: #27ae60; }

.tools { border-top: 4px solid #e67e22; }
.tools .module-icon { color: #e67e22; }

/* ============ 页脚文字 ============ */
.footer-note {
  margin-top: 40px;
  color: #7f8c8d;
  font-size: 0.95rem;
}

.footer-note a {
  color: #7f8c8d;
  text-decoration: none;
}

.footer-note a:hover {
  color: #3498db;
  text-decoration: underline;
}

/* ============ 备案信息 ============ */
.beian-footer {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #eee;
  font-size: 0.85rem;
  color: #7f8c8d;
}

.beian-footer a {
  color: #7f8c8d;
  text-decoration: none;
}

.beian-footer a:hover {
  color: #3498db;
  text-decoration: underline;
}

/* ============ 响应式 ============ */
@media (max-width: 768px) {
  .brand { font-size: 2rem; }
  .subtitle { font-size: 1rem; }
  .module-card {
    width: 100%;
    max-width: 300px;
  }

  .beian-footer {
    font-size: 0.8rem;
  }
}
    body {
      font-family: "PingFang SC", "Microsoft YaHei", serif;
      background-color: #fafafa;
      color: #333;
      line-height: 1.6;
      margin: 0;
      padding: 0;
    }
    .container {
      max-width: 800px;
      margin: 0 auto;
      padding: 40px 20px;
      text-align: center;
    }
    .hero {
      margin-bottom: 50px;
    }
    .hero h1 {
      font-size: 2.8rem;
      font-weight: 500;
      letter-spacing: 1px;
      margin: 0;
      color: #222;
    }
    .slogan {
      font-size: 1.4rem;
      color: #666;
      margin-top: 12px;
      font-family: "STKaiti", "KaiTi", serif;
      letter-spacing: 2px;
    }
    .sections {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      margin-bottom: 50px;
    }
    .card {
      background: white;
      border-radius: 12px;
      padding: 24px 20px;
      width: 220px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
      transition: transform 0.2s;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    }
    .card h2 {
      font-size: 1.3rem;
      margin: 0 0 12px;
      color: #333;
    }
    .card p {
      font-size: 0.95rem;
      color: #555;
      margin: 0;
      line-height: 1.7;
    }
    .footer {
      font-size: 0.85rem;
      color: #888;
    }
    .footer a {
      color: #666;
      text-decoration: none;
    }
    .footer a:hover {
      text-decoration: underline;
    }
    @media (max-width: 600px) {
      .hero h1 { font-size: 2.2rem; }
      .slogan { font-size: 1.2rem; }
      .sections { gap: 20px; }
      .card { width: 100%; max-width: 280px; }
    }