首页：包括商品搜索、分类、优惠推荐、购物车、我的、用户评价、到家服务。并添加样式

好的，您可以将以下 CSS 样式添加到您的网站样式表中，以实现上述功能的样式效果：

/* 商品搜索 */
.search-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 300px;
  height: 30px;
  border: 1px solid #ccc;
  border-radius: 15px;
  overflow: hidden;
}
.search-box input[type="text"] {
  width: 250px;
  height: 100%;
  border: none;
  outline: none;
  font-size: 14px;
  padding-left: 10px;
  padding-right: 10px;
}
.search-box button {
  width: 50px;
  height: 100%;
  border: none;
  outline: none;
  background-color: #f60;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}

/* 分类 */
.category {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 50px;
  background-color: #f5f5f5;
}
.category ul {
  display: flex;
  align-items: center;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}
.category li {
  margin-right: 20px;
}
.category li:last-child {
  margin-right: 0;
}
.category li a {
  color: #333;
  font-size: 14px;
  text-decoration: none;
}
.category li.active a {
  color: #f60;
  font-weight: bold;
}

/* 优惠推荐 */
.discount {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100px;
  background-color: #fff;
}
.discount .item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 200px;
  height: 80px;
  border: 1px solid #ccc;
  border-radius: 10px;
  margin-right: 20px;
}
.discount .item:last-child {
  margin-right: 0;
}
.discount .item img {
  width: 60px;
  height: 60px;
  margin-right: 10px;
}
.discount .item .title {
  font-size: 14px;
  font-weight: bold;
  margin-bottom: 5px;
}
.discount .item .price {
  font-size: 12px;
  color: #f60;
}

/* 购物车、我的、用户评价、到家服务 */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: 50px;
  background-color: #333;
  color: #fff;
  font-size: 14px;
}
.nav a {
  color: #fff;
  text-decoration: none;
}
.nav a:hover {
  text-decoration: underline;
}
.nav .cart,
.nav .mine,
.nav .evaluate,
.nav .service {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 100%;
}
.nav .cart .icon,
.nav .mine .icon,
.nav .evaluate .icon,
.nav .service .icon {
  display: block;
  width: 20px;
  height: 20px;
  margin-right: 5px;
  background-repeat: no-repeat;
  background-position: center center;
  background-size: contain;
}
.nav .cart .icon {
  background-image: url('购物车图标的路径');
}
.nav .mine .icon {
  background-image: url('我的图标的路径');
}
.nav .evaluate .icon {
  background-image: url('用户评价图标的路径');
}
.nav .service .icon {
  background-image: url('到家服务图标的路径');
}

同时，您需要将上述 CSS 样式中的图片路径替换为您网站上相应的图片路径。