/* Features Section - 核心能力区 */
    .features-section {
      padding: 6rem 0;
      background: var(--dark-bg-secondary);
    }

    .feature-showcase {
      max-width: 1200px;
      margin: 0 auto;
    }

    .feature-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
      margin-bottom: 6rem;
      position: relative;
    }

    .feature-block:last-child {
      margin-bottom: 0;
    }

    .feature-block:nth-child(even) .feature-content {
      order: 2;
    }

    .feature-block:nth-child(even) .feature-image {
      order: 1;
    }

    .feature-content {
      padding: 2rem;
    }

    .feature-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.5rem 1.2rem;
      background: rgba(0, 255, 163, 0.1);
      border: 1px solid rgba(0, 255, 163, 0.3);
      border-radius: 20px;
      font-size: 0.85rem;
      color: var(--text-accent);
      font-weight: 600;
      margin-bottom: 1.5rem;
    }

    .feature-badge-icon {
      width: 16px;
      height: 16px;
      flex-shrink: 0;
    }

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

    .feature-title {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 1rem;
      line-height: 1.2;
    }

    .feature-description {
      font-size: 1.1rem;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 2rem;
    }

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

    .feature-highlights li {
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: 0.8rem 0;
      font-size: 1rem;
      color: var(--text-secondary);
    }

    .feature-highlights li::before {
      content: '✓';
      display: flex;
      align-items: center;
      justify-content: center;
      width: 24px;
      height: 24px;
      background: rgba(0, 255, 163, 0.1);
      color: var(--text-accent);
      border-radius: 50%;
      font-weight: 700;
      flex-shrink: 0;
    }

    .feature-image {
      position: relative;
    }

    .feature-image-wrapper {
      width: 100%;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow-xl);
      border: 1px solid var(--glass-border);
      transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
      background: rgba(0, 0, 0, 0.5);
    }

    .feature-image-wrapper:hover {
      transform: scale(1.03);
      box-shadow: var(--shadow-xl), var(--glow-green);
    }

    .feature-image-wrapper img,
    .feature-image-wrapper video {
      width: 100%;
      height: auto;
      display: block;
      object-fit: contain;
    }

    /* 移动端适配 */
    @media (max-width: 968px) {
      .feature-block {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 4rem;
      }

      .feature-block:nth-child(even) .feature-content,
      .feature-block:nth-child(even) .feature-image {
        order: initial;
      }

      .feature-title {
        font-size: 2rem;
      }

      .feature-description {
        font-size: 1rem;
      }
    }

    @media (max-width: 768px) {
      .feature-content {
        padding: 1rem;
      }

      .feature-title {
        font-size: 1.8rem;
      }
    }