/* Comparison Section - 卡片式对比 */
    .comparison-section {
      padding: 8rem 0;
      background: var(--dark-bg-secondary);
      position: relative;
      overflow: hidden;
    }

    .comparison-section::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(0, 224, 255, 0.05), transparent);
      pointer-events: none;
    }

    .comparison-container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      position: relative;
      z-index: 1;
    }

    /* 卡片网格布局 */
    .comparison-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      margin-top: 3rem;
    }

    .comparison-card {
      background: var(--card-bg);
      border: 1px solid var(--glass-border);
      border-radius: 24px;
      padding: 2.5rem 2rem;
      transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
      backdrop-filter: blur(20px);
    }

    .comparison-card.featured {
      border-color: rgba(0, 255, 163, 0.3);
      background: var(--card-bg-hover);
      box-shadow: var(--shadow-lg), var(--glow-green);
      transform: scale(1.05);
    }

    .comparison-card.featured::before {
      content: '推荐';
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--gradient);
      color: #000;
      padding: 0.3rem 1rem;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 700;
      box-shadow: var(--shadow-md);
    }

    .comparison-card:hover {
      transform: translateY(-8px);
      border-color: rgba(0, 255, 163, 0.2);
      box-shadow: var(--shadow-lg);
    }

    .comparison-card.featured:hover {
      transform: scale(1.05) translateY(-8px);
      box-shadow: var(--shadow-xl), var(--glow-accent);
    }

    .comparison-card-header {
      text-align: center;
      margin-bottom: 2rem;
      padding-bottom: 1.5rem;
      border-bottom: 1px solid var(--glass-border);
    }

    .comparison-card-title {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.5rem;
    }

    .comparison-card-price {
      font-size: 1.1rem;
      color: var(--text-accent);
      font-weight: 600;
    }

    .comparison-card.featured .comparison-card-price {
      font-size: 1.2rem;
      background: var(--gradient);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .comparison-feature-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .comparison-feature-item {
      display: flex;
      align-items: center;
      gap: 0.8rem;
      padding: 0.8rem 0;
      font-size: 0.95rem;
      color: var(--text-secondary);
    }

    .comparison-feature-icon {
      width: 18px;
      height: 18px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .comparison-feature-icon svg {
      width: 100%;
      height: 100%;
      fill: currentColor;
    }

    .comparison-feature-icon.check {
      color: var(--text-accent);
    }

    .comparison-feature-icon.cross {
      color: #FF6B6B;
    }

    .comparison-feature-icon.warning {
      color: #FFA726;
    }


    /* Scroll Down Arrow */
    .scroll-down-arrow {
      position: absolute;
      bottom: 2rem;
      left: 50%;
      transform: translateX(-50%);
      text-align: center;
      cursor: pointer;
      z-index: 10;
    }

    .arrow-icon {
      display: inline-block;
      width: 50px;
      height: 50px;
      border: 2px solid var(--text-secondary);
      border-radius: 50%;
      position: relative;
      animation: bounce 2s infinite;
      transition: all 0.3s ease;
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(10px);
    }

    .arrow-icon::after {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%) rotate(45deg);
      width: 12px;
      height: 12px;
      border-right: 2px solid var(--text-secondary);
      border-bottom: 2px solid var(--text-secondary);
      transition: all 0.3s ease;
    }

    .scroll-down-arrow:hover .arrow-icon {
      border-color: var(--text-accent);
      background: rgba(255, 255, 255, 0.2);
      transform: scale(1.1);
    }

    .scroll-down-arrow:hover .arrow-icon::after {
      border-right-color: var(--text-accent);
      border-bottom-color: var(--text-accent);
    }

    @keyframes bounce {
      0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
      }
      40% {
        transform: translateY(-8px);
      }
      60% {
        transform: translateY(-4px);
      }
    }