.index {
  position: relative;
  min-height: 100vh;
  overflow: hidden;

  // 背景图层
  .bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 0;
  }

  // 内容层
  .index-content {
    position: relative;
    z-index: 1;
  }

  .site-name {
    padding: 24px 32px 0;
    color: #fff;
  }

  // ========== 1. 搜索栏 ==========
  .search-wrapper {
    padding: 24px 32px 16px;

    .van-search {
      padding: 0;
      border-radius: 36px;
      overflow: hidden;
      box-shadow: 0 4px 16px rgba(255, 107, 53, 0.15);
    }

    .van-search__content {
      border-radius: 36px;
    }
  }

  // ========== 2. 轮播图 ==========
  .swiper-wrapper {
    margin: 8px 32px 20px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);

    .swiper-img {
      width: 100%;
      height: 100%;
    }
  }

  // ========== 3. 宫格导航 ==========
  .grid-wrapper {
    margin: 16px 32px 20px;
    background: rgb(255 255 255);
    border-radius: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    padding-bottom: 24px;

    .grid-title {
      font-size: 32px;
      font-weight: 600;
      color: #333;
    }

    .van-grid-item__content {
      padding-top: 24px;
      padding-bottom: 0;
    }

    .van-icon--image {
      width: 60px !important;
      height: 60px !important;
    }

    .van-grid-item__text {
      font-size: 22px;
      color: #555;
      margin-top: 8px;
    }
  }

  // ========== 4. 活动专区 ==========
  .activity-section {
    padding: 0 32px;
    margin-bottom: 24px;

    .activity-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 20px;

      .activity-title {
        display: flex;
        align-items: center;
        font-size: 34px;
        font-weight: 700;
        color: #333;

        .title-accent {
          width: 8px;
          height: 32px;
          border-radius: 4px;
          background: linear-gradient(180deg, #ffb347, #ff6b35);
          margin-right: 14px;
        }
      }

      .activity-more {
        display: flex;
        align-items: center;
        font-size: 24px;
        color: #999;

        .more-arrow {
          margin-left: 2px;
          font-size: 28px;
          line-height: 1;
        }
      }
    }

    .activity-cards {
      display: flex;
      gap: 20px;
      margin-bottom: 20px;

      // 只有一条活动时占满整行
      &.single .activity-card {
        flex: 1 1 100%;
      }
    }

    .activity-card {
      position: relative;
      flex: 1;
      min-height: 216px;
      box-sizing: border-box;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 26px 24px;
      border-radius: 24px;
      overflow: hidden;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
      transition: transform 0.2s ease;

      &:active {
        transform: scale(0.97);
      }

      // 装饰圆，增加层次感
      .deco-circle {
        position: absolute;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.14);
      }

      .circle-1 {
        width: 170px;
        height: 170px;
        top: -60px;
        right: -44px;
      }

      .circle-2 {
        width: 96px;
        height: 96px;
        bottom: -40px;
        left: -24px;
        background: rgba(255, 255, 255, 0.1);
      }

      .activity-card-main {
        position: relative;
        z-index: 1;
      }

      .activity-icon {
        width: 60px;
        height: 60px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 34px;
        border-radius: 16px;
        margin-bottom: 14px;
        overflow: hidden;

        .activity-icon-img {
          width: 100%;
          height: 100%;
        }
      }

      .activity-name {
        font-size: 32px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 4px;
      }

      .activity-desc {
        font-size: 22px;
        color: rgba(255, 255, 255, 0.85);
      }
    }

    // 满减优惠：橙红渐变
    .card-fullcut {
      background: linear-gradient(135deg, #ff9560 0%, #ff5a3c 100%);

      .activity-btn {
        color: #ff5a3c;
      }
    }

    // 新品首发：青绿渐变
    .card-newbie {
      background: linear-gradient(135deg, #43d6a5 0%, #14b07c 100%);

      .activity-btn {
        color: #14b07c;
      }
    }
  }

  // ========== 5. 底部推荐卡片 ==========
  // section-card 通用样式（活动专区 + 底部推荐共用）
  .section-card {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 18px;
    padding: 24px 28px;
    margin-bottom: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease;

    &:active {
      transform: scale(0.98);
    }

    .card-icon {
      font-size: 48px;
      width: 72px;
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 18px;
      margin-right: 20px;
      flex-shrink: 0;
      overflow: hidden;

      .card-icon-img {
        width: 100%;
        height: 100%;
      }
    }

    .card-info {
      flex: 1;

      .card-title {
        font-size: 30px;
        font-weight: 600;
        color: #333;
        margin-bottom: 6px;
      }

      .card-desc {
        font-size: 24px;
        color: #999;
      }
    }

    .card-arrow {
      font-size: 40px;
      color: #ccc;
      flex-shrink: 0;
    }
  }

  // 底部留白
  .bottom-spacer {
    height: 60px;
  }
}