.metal {
      padding: 80px 0;
    }
    .metal-section-title {
      font-size: 2rem;
      font-weight: 600;
      color: #222;
      margin-bottom: 12px;
    }
    .metal-section-desc {
      color: #666;
      max-width: 860px;
      margin: 0 auto 50px;
      line-height: 1.75;
    }
    /* 产品卡片 */
    .metal-card {
      position: relative;
      border: 1px solid #e9ecef;
      border-radius: 6px;
      height: 100%;
      padding: 30px 24px;
      transition: all 0.3s ease;
      background: #fff;
    }
    .metal-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 12px 24px rgba(0,0,0,0.07);
      border-color: #d0d7e0;
    }
    /* 热销标签 */
    .metal-tag {
      position: absolute;
      top: -10px;
      left: 20px;
      background-color: #dc3545;
      color: #fff;
      font-size: 12px;
      font-weight: 500;
      padding: 4px 10px;
      border-radius: 4px;
      z-index: 2;
    }
    /* 产品标题 */
    .metal-card-title {
      font-size: 18px;
      font-weight: 600;
      color: #222;
      margin-bottom: 20px;
      text-align: center;
    }
    /* 配置列表 */
    .metal-specs {
      list-style: none;
      padding: 0;
      margin: 0 0 24px;
    }
    .metal-specs li {
      padding: 6px 0;
      font-size: 14px;
      color: #444;
    }
    .metal-specs li b {
      color: #222;
      font-weight: 600;
    }
    /* 价格 */
    .metal-price {
      font-size: 26px;
      font-weight: 700;
      color: #0d6efd;
      text-align: center;
      margin-bottom: 20px;
    }
    .metal-price span {
      font-size: 14px;
      color: #666;
      font-weight: 400;
    }
    /* 购买按钮 */
    .metal-btn {
      display: block;
      width: 100%;
      padding: 10px;
      border-radius: 6px;
      background-color: #0d6efd;
      color: #fff;
      text-align: center;
      font-weight: 500;
      transition: background 0.2s;
    }
    .metal-btn:hover {
      background-color: #0b5ed7;
      color: #fff;
      text-decoration: none;
    }
    
    /* 服务保障 */
.dn23-gaofangcloud {
    padding: 70px 0;
        background: #fff;
}
.dn23-gaofangcloud .bg {
    display: none;
}
/* 标题区域 */
.dn23-gaofangcloud .mart-cloumn {
    text-align: center;
    margin-bottom: 60px;
}
.dn23-gaofangcloud .mart-cloumn h3 {
    font-size: 28px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 12px;
    letter-spacing: 1px;
}
.dn23-gaofangcloud .mart-cloumn p {
    font-size: 15px;
    color: #666;
    margin: 0 auto;
    line-height: 1.7;
}
/* 卡片整体 */
.dn23-gaofangcloud .gaofang-item {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 35px 20px;
    text-align: center;
    transition: all 0.25s ease;
    height: 100%;
}
.dn23-gaofangcloud .gaofang-item:hover {
    border-color: #ccc;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transform: translateY(-3px);
}
/* 图标样式 */
.dn23-gaofangcloud .gaofang-icon {
    font-size: 36px;
    color: #007bff;
    margin-bottom: 18px;
    display: inline-block;
}
/* 文字 */
.dn23-gaofangcloud .gaofang-item h4 {
    font-size: 17px;
    font-weight: 600;
    color: #222;
    margin: 0 0 15px;
}
.dn23-gaofangcloud .gaofang-item p {
    font-size: 14px;
    color: #777;
    line-height: 1.6;
    margin: 0;
}


.product-list.assessment-part1 {
    padding: 70px 0;
    background: #f8f9fa;
}
.product-list .product-cloumn {
    text-align: center;
    font-size: 28px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 50px;
    position: relative;
}

/* 优势卡片 */
.advantage-item {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 10px;
    padding: 35px 25px;
    height: 100%;
    text-align: center;
    transition: all 0.3s ease;
}
.advantage-item:hover {
    border-color: #ddd;
    box-shadow: 0 6px 15px rgba(0,0,0,0.04);
    transform: translateY(-3px);
}

/* 图标 */
.advantage-icon {
    font-size: 38px;
    color: #007bff;
    margin-bottom: 20px;
}
.advantage-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: #222;
    margin-bottom: 15px;
}
.advantage-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    margin: 0;
}