/* Community Section */
    .community-section {
      padding: 6rem 0;
      background: linear-gradient(135deg, rgba(0, 255, 136, 0.03), rgba(0, 179, 255, 0.03));
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .community-content {
      display: flex;
      justify-content: center;
      align-items: center;
      max-width: 600px;
      margin: 0 auto;
    }

    .qr-code-container {
      text-align: center;
      background: var(--card-bg);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 24px;
      padding: 3rem 2.5rem;
      backdrop-filter: blur(20px);
      transition: all 0.4s ease;
    }

    .qr-code-container:hover {
      transform: translateY(-5px);
      border-color: rgba(0, 255, 136, 0.3);
      box-shadow: 0 20px 40px rgba(0, 255, 136, 0.2);
    }

    .qr-code {
      width: 200px;
      height: 200px;
      border-radius: 16px;
      margin-bottom: 1.5rem;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
      transition: all 0.3s ease;
    }

    .qr-code:hover {
      transform: scale(1.05);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    }

    .qr-description {
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 0.8rem;
    }

    .qr-subtitle {
      font-size: 1rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* Footer */
    .footer {
      padding: 3rem 0;
      text-align: center;
      color: var(--text-secondary);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.9rem;
    }

    /* Loading Spinner */
    .loading-spinner {
      width: 40px;
      height: 40px;
      margin: 2rem auto;
      border: 3px solid rgba(0, 255, 136, 0.2);
      border-top: 3px solid var(--primary-green);
      border-radius: 50%;
      animation: spin 1s linear infinite;
    }

    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }

    /* Mobile Responsiveness */
    @media (max-width: 968px) {
      .hero-main {
        grid-template-columns: 1fr;
        gap: 2rem;
        max-width: 98%;
        padding: 0 1rem;
      }
      
      .hero-video {
        order: 2;
      }
      
    }
    
    @media (max-width: 768px) {
      .hero {
        min-height: auto;
        padding: 4rem 0;
      }

      .hero::before,
      .hero::after {
        opacity: 0.3;
      }

      .hero-main {
        gap: 2rem;
        max-width: 100%;
        padding: 0 1rem;
      }

      .hero h1 {
        font-size: clamp(2rem, 8vw, 3rem);
      }

      .download-info {
        display: none;
      }

      .video-container {
        transform: none;
        border-radius: 16px;
      }

      .video-container:hover {
        transform: scale(1.01);
      }

      .video-container iframe,
      .video-loading,
      .video-fallback {
        height: 250px;
      }

      .trust-signals {
        justify-content: center;
      }

      .hero-download-cards {
        max-width: 100%;
      }

      /* 截图展示区移动端适配 */
      .screenshots-showcase {
        padding: 4rem 0;
      }

      .screenshot-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .screenshot-item {
        max-width: 500px;
        margin: 0 auto;
      }
      
      .features-section,
      .comparison-section {
        padding: 4rem 0;
      }

      /* 对比卡片移动端适配 */
      .comparison-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }

      .comparison-card.featured {
        transform: scale(1);
      }

      .comparison-card.featured:hover {
        transform: translateY(-8px);
      }
      
      .community-section {
        padding: 4rem 0;
      }
      
      .qr-code-container {
        padding: 2rem 1.5rem;
      }
      
      .qr-code {
        width: 160px;
        height: 160px;
      }
    }
    
    @media (max-width: 480px) {
      .qr-code-container {
        padding: 1.5rem 1rem;
      }

      .qr-code {
        width: 140px;
        height: 140px;
      }

      .qr-description {
        font-size: 1.1rem;
      }

      .qr-subtitle {
        font-size: 0.9rem;
      }
    }