.banner {
  position: relative;
  width: 100%;
  background: url("https://tjyzsz.oss-cn-beijing.aliyuncs.com/seoYaZhongSheZhuang/images/zxbz/zxbz_banner.png") no-repeat center center;
  background-size: cover;
}

.banner h2 {
  margin: 0 auto;
  width: 1280px;
  height: 307px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
  font-size: 50px;
  font-family: Arial, Helvetica, sans-serif;
}
.banner .menu_box {
  width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding-bottom: 20px;
  font-size: 14px;
  color: #fff;
}
.banner .menu_box span,
.banner .menu_box a {
  color: #fff;
  text-decoration: none;
  margin-right: 5px;
}

.box_1 {
  width: 1280px;
  margin: 0 auto;
}
.box_1 .title {
  padding-top: 100px;
  font-size: 36px;
  color: #333;
  text-align: center;
}
.box_1 .sub_title {
  padding-top: 23px;
  font-size: 16px;
  color: #666;
  text-align: center;
}
.box_1 .img_wrap {
  display: flex;
  flex-wrap: wrap;
  padding-top: 44px;
  padding-bottom: 84px;
  gap: 9px;
  justify-content: space-between;
}
.box_1 .img_wrap .img_box {
  flex: 1;
}
.box_1 .img_wrap .img_box img {
  width: 100%;
}
.box_1 .img_wrap .img_box:nth-child(odd) {
  padding-top: 44px;
}

.box_2 {
  width: 100%;
}
.box_2 img {
  width: 100%;
}

.box_3 {
  width: 1280px;
  margin: 0 auto;
  padding-top: 67px;
}
.box_3 img {
  width: 100%;
}

.box_4 {
  width: 1280px;
  margin: 0 auto;
  padding-top: 67px;
  display: flex;
  flex-wrap: wrap;
  gap: 27px;
}

.box_5 {
  margin-top: 155px;
  width: 100%;
  background: url("https://tjyzsz.oss-cn-beijing.aliyuncs.com/seoYaZhongSheZhuang/images/zxbz/box_5_bg.png") no-repeat center center;
  background-size: cover;
}
.box_5_wrap {
  width: 1280px;
  margin: 0 auto;
}

.box_5 .title {
  padding-top: 100px;
  font-size: 36px;
  color: #fff;
  text-align: center;
}
.box_5 .sub_title {
  padding-top: 23px;
  font-size: 16px;
  color: #fff;
  text-align: center;
  padding-bottom: 50px;
}

.box_5 .content {
  width: 1200px;
  margin: 0 auto;
  padding-bottom: 105px;
}
.box_5 .content .item {
  display: flex;
  margin-bottom: 10px;
  width: 1080px;
}
.box_5 .content .item:nth-child(1) {
  margin-left: 120px;
}
.box_5 .content .item:nth-child(3) {
  margin-left: 120px;
}
.box_5 .content .item img {
  display: block;
  width: 290px;
}
.box_5 .content .item .txt {
  width: 380px;
  height: 130px;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #fff;
  color: #b60002;
  font-size: 40px;
}
.box_5 .content .item .tag {
  width: 480px;
  height: 130px;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #fff;
  color: #666;
  font-size: 20px;
}

.box_6 {
  width: 1280px;
  margin: 0 auto;
  padding-bottom: 90px;
}

.box_6 .title {
  padding-top: 100px;
  font-size: 36px;
  text-align: center;
}
.box_6 .sub_title {
  padding-top: 23px;
  font-size: 16px;
  text-align: center;
  padding-bottom: 50px;
}
.box_6 .img_box {
  display: flex;
}
.box_6 .img_box .img1,
.box_6 .img_box .img2 {
  display: block;
  flex: 1;
}
.box_6 .img_box .img3 {
  width: 426px;
  flex-shrink: 0;
}

.box_6 .img_box .img4 {
  flex: 1;
}

.box_7 {
  width: 100%;
}
.box_7 img {
  width: 100%;
}

.box_8 {
  background: url("https://tjyzsz.oss-cn-beijing.aliyuncs.com/seoYaZhongSheZhuang/images/zxbz/box_8_bg.png") no-repeat bottom right;
  background-size: cover;
  padding: 80px 0 60px;
}
.box_8 img {
  display: block;
  width: 1200px;
  margin: 0 auto;
}