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

    body {
      font-family: system-ui, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
      background: #0f1119;
      color: #e0e4f0;
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    /* 完全本地风格，渐变与卡片 */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

    /* 顶部导航 */
    .navbar {
      background: rgba(18, 22, 33, 0.9);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 215, 0, 0.15);
      position: sticky;
      top: 0;
      z-index: 50;
      padding: 12px 0;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 800;
      background: linear-gradient(135deg, #fbbf24, #f59e0b);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: 1px;
    }

    .nav-links {
      display: flex;
      gap: 1.8rem;
      align-items: center;
      flex-wrap: wrap;
    }

    .nav-links a {
      color: #cbd5e1;
      text-decoration: none;
      font-weight: 500;
      transition: color 0.2s;
      font-size: 1rem;
    }

    .nav-links a:hover {
      color: #fbbf24;
    }

    .btn-outline-nav {
      border: 1px solid #fbbf24;
      color: #fbbf24;
      padding: 0.5rem 1.2rem;
      border-radius: 2rem;
      text-decoration: none;
      font-weight: 600;
      transition: all 0.25s;
      background: transparent;
    }

    .btn-outline-nav:hover {
      background: #fbbf24;
      color: #0f1119;
    }

    /* 主图模块（Hero） */
    .hero {
      padding: 3rem 0 2rem;
      text-align: center;
      position: relative;
      background: radial-gradient(circle at 30% 20%, rgba(251, 191, 36, 0.08) 0%, transparent 45%);
    }

    .hero-badge {
      display: inline-block;
      background: rgba(251, 191, 36, 0.15);
      color: #fbbf24;
      padding: 0.3rem 1.2rem;
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 1.2rem;
      border: 1px solid rgba(251, 191, 36, 0.3);
    }

    .hero h1 {
      font-size: clamp(2.2rem, 7vw, 3.8rem);
      font-weight: 800;
      background: linear-gradient(to right, #ffffff, #facc15);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 1rem;
      line-height: 1.2;
    }

    .hero-sub {
      font-size: 1.2rem;
      color: #a0aec0;
      max-width: 700px;
      margin: 0 auto 2rem;
    }

    /* 主图模拟展示卡片 */
    .hero-mock {
      background: linear-gradient(145deg, #1e2433, #151a26);
      border-radius: 2.5rem;
      padding: 1.2rem;
      box-shadow: 0 25px 45px -10px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.08);
      max-width: 750px;
      margin: 0 auto 1.5rem;
      border: 1px solid rgba(251, 191, 36, 0.2);
    }

    .mock-img {
      background: linear-gradient(130deg, #2d3548, #1a1f2e);
      height: auto;
      aspect-ratio: 16 / 9;
      border-radius: 1.8rem;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fbbf24;
      font-size: 2.5rem;
      font-weight: bold;
      text-shadow: 0 0 15px black;
      background-image: url('logo.jpg');
      background-size: cover;
      background-position: center;
      position: relative;
      overflow: hidden;
    }

    /* 下载按钮组 */
    .btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      justify-content: center;
      margin: 1.8rem 0 1rem;
    }

    .btn-primary {
      background: linear-gradient(135deg, #fbbf24, #d97706);
      color: #0f1119;
      font-weight: 700;
      padding: 0.9rem 2.5rem;
      border-radius: 3rem;
      text-decoration: none;
      font-size: 1.2rem;
      box-shadow: 0 10px 20px -8px rgba(251, 191, 36, 0.4);
      transition: all 0.25s;
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      border: none;
      letter-spacing: 0.5px;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 28px -8px rgba(251, 191, 36, 0.6);
      background: linear-gradient(135deg, #fcd34d, #f59e0b);
    }

    .btn-secondary {
      background: transparent;
      border: 2px solid #fbbf24;
      color: #fbbf24;
      padding: 0.9rem 2.2rem;
      border-radius: 3rem;
      font-weight: 700;
      text-decoration: none;
      transition: 0.2s;
    }

    .btn-secondary:hover {
      background: rgba(251, 191, 36, 0.1);
    }

    /* 卡片模块 */
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      text-align: center;
      margin: 3rem 0 1.8rem;
      color: #f1f5f9;
    }

    .card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 1.5rem;
      margin-bottom: 2rem;
    }

    .feature-card {
      background: #1b2030;
      border-radius: 1.8rem;
      padding: 1.8rem 1.2rem;
      border: 1px solid rgba(255, 255, 255, 0.05);
      transition: transform 0.2s, border-color 0.2s;
      text-align: center;
      box-shadow: 0 12px 25px -12px rgba(0,0,0,0.5);
    }

    .feature-card:hover {
      transform: translateY(-5px);
      border-color: #fbbf24;
    }

    .card-icon {
      font-size: 2.8rem;
      margin-bottom: 1rem;
    }

    .feature-card h3 {
      color: #facc15;
      margin-bottom: 0.7rem;
    }

    /* 功能介绍详情 */
    .func-list {
      background: #181e2b;
      border-radius: 2rem;
      padding: 2rem;
      margin: 2rem 0;
      display: flex;
      flex-wrap: wrap;
      gap: 1.5rem;
      justify-content: center;
    }

    .func-item {
      display: flex;
      align-items: center;
      gap: 0.7rem;
      background: #222940;
      padding: 0.7rem 1.5rem;
      border-radius: 3rem;
      color: #e2e8f0;
    }

    /* 部署教程 & 常见问题 */
    .accordion {
      background: #1b2030;
      border-radius: 1.5rem;
      padding: 1.5rem;
      margin: 1.5rem 0;
    }

    .faq-item {
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding: 1rem 0;
    }

    .faq-item:last-child {
      border-bottom: none;
    }

    .faq-question {
      font-weight: 700;
      font-size: 1.1rem;
      color: #fcd34d;
      margin-bottom: 0.4rem;
    }

    /* 底部参数 */
    .footer {
      margin-top: auto;
      background: #0b0e14;
      border-top: 1px solid #2d3545;
      padding: 2rem 0;
      text-align: center;
      color: #8b92a5;
    }

    .footer-links {
      display: flex;
      justify-content: center;
      gap: 2rem;
      flex-wrap: wrap;
      margin-bottom: 1rem;
    }

    .footer-links a {
      color: #a0aec0;
      text-decoration: none;
    }

    /* 响应式微调 */
    @media (max-width: 600px) {
      .nav-container {
        flex-direction: column;
        gap: 0.8rem;
      }
      .btn-group {
        flex-direction: column;
        align-items: center;
      }
    }

    /* 图标占位可替换说明 */
    .replace-note {
      font-size: 0.7rem;
      color: #6b7280;
      margin-top: 0.3rem;
    }