body {
      font-family: 'Noto Sans SC', sans-serif;
      background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
      color: #fff;
    }
    #particles-js {
      position: absolute;
      width: 100%;
      height: 100%;
      z-index: -1;
    }
    .feature-card {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      transition: all 0.3s ease;
    }
    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }
    .counter {
      font-size: 3rem;
      background: linear-gradient(90deg, #00dbde 0%, #fc00ff 100%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .video-container {
      position: relative;
      padding-bottom: 56.25%;
      height: 0;
      overflow: hidden;
      border-radius: 12px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }
    .video-container iframe {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
    }
    .pricing-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .pricing-card-content {
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .pricing-card-button {
      margin-top: auto;
      align-self: flex-end;
      width: 100%;
    }
    .pricing-card:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }
    .pricing-popular {
      border: 2px solid #6a11cb;
      position: relative;
      overflow: hidden;
    }
    .pricing-popular::after {
      content: "热门";
      position: absolute;
      top: 10px;
      right: -30px;
      width: 100px;
      padding: 3px 0;
      background: #6a11cb;
      color: white;
      text-align: center;
      transform: rotate(45deg);
      font-size: 12px;
    }
    .feature-showcase {
      background: rgba(0, 0, 0, 0.3);
      border-radius: 16px;
      overflow: hidden;
      transition: all 0.3s ease;
    }
    .feature-showcase:hover {
      transform: scale(1.02);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
    }
    .feature-img {
      height: 200px;
      object-fit: cover;
      width: 100%;
    }
    .feature-modal {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.9);
      z-index: 1000;
      align-items: center;
      justify-content: center;
    }
    .feature-modal-content {
      max-width: 90%;
      max-height: 90%;
      position: relative;
    }
    .close-modal {
      position: absolute;
      top: 20px;
      right: 20px;
      color: white;
      font-size: 30px;
      cursor: pointer;
    }
    .download-card {
      background: rgba(255, 255, 255, 0.05);
      border-radius: 12px;
      transition: all 0.3s ease;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .download-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
      background: rgba(255, 255, 255, 0.1);
    }
    .download-btn {
      background: linear-gradient(90deg, #6a11cb 0%, #2575fc 100%);
      transition: all 0.3s ease;
    }
    .download-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    }
    .agent-card {
      background: linear-gradient(135deg, rgba(106, 17, 203, 0.2) 0%, rgba(37, 117, 252, 0.2) 100%);
      border: 1px solid rgba(106, 17, 203, 0.5);
      position: relative;
      overflow: hidden;
    }
    .agent-card::after {
      content: "代理专属";
      position: absolute;
      top: 10px;
      right: -30px;
      width: 100px;
      padding: 3px 0;
      background: linear-gradient(90deg, #6a11cb 0%, #2575fc 100%);
      color: white;
      text-align: center;
      transform: rotate(45deg);
      font-size: 12px;
    }