.product {
  height: auto;
  margin-top: 132px;
}
.product_c {
  height: auto;
  min-height: 600px;
}
.product_c_t {
  box-sizing: border-box;
  height: 105px;
}
.product_c_t > span:nth-child(1) {
  font-size: 28px;
  color: #013faf;
}
.product_c_t > span:nth-child(2) {
  font-size: 16px;
}
.product_nav {
  width: 100%;
  flex-wrap: wrap;
  justify-content: flex-start;
}
.product_nav > li {
  width: 111px;
  height: 40px;
  margin-right: 25px;
  position: relative
}
.product_nav > li:nth-child(9n) {
 margin-right: 0px;
}
.product_nav > li > a {
  height: 100%;
  width: 100%;
  background: #013faf;
  color: #fff;
  text-align: center;
  line-height: 40px;
  font-size: 16px;
}
.nav_03 {
  position: absolute;
  background: #fff;
  top: 40px;
  width: 170%;
  max-height: 0px;
  z-index: 1;
  transition: all 1s ease;
  overflow: hidden;
  box-sizing: border-box;
  border: 1px solid #fff;
}
.nav_03 > li {
  height: 40px;
  width: 100%;
}
.nav_03 > li > a {
  height: 100%;
  width: 100%;
  font-size: 15px;
  line-height: 42px;
  transition: all 0.5s ease;
  box-sizing: border-box;
  padding-left: 5px;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}
.nav_03 > li > a:hover {
  background: #013faf;
  color: #fff;
}
.product_nav > li:nth-child(8) .nav_03 {
  border: none !important;
}
.product_nav > li:hover .nav_03 {
  max-height: 500px;
  border: 1px solid #013faf;
}


.product_content {
  height: auto;
  overflow: hidden;
  margin-top: 70px;
  margin-bottom: 50px;
  display: flex;
	flex-direction: column;
  justify-content: space-around;
  align-items: center;
}
.product_content > div > div > p > img {
  width: 800px;
}
.product_box {
  width: 100%;
  overflow: hidden;
}
.product_box > li {
  height: 305px;
  width: 281.25px;
  float: left;
  margin-right: 25px;
  box-sizing: border-box;
  border: 1px solid #013faf;
  margin-bottom: 35px;
}
.product_box > li:nth-child(4n) {
  margin-right: 0px;
}
.product_box > li > a {
  height: 100%;
  width: 100%;
}
.product_mask {
  height: 265px;
  width: 100%;
  overflow: hidden;
}
.product_mask > img {
  width: 100%;
  height: 100%;
}
.product_text {
  height: 38px;
  text-align: center;
  line-height: 38px;
  background: #013faf;
  color: #fff;
  font-size: 20px;
}
.pagi {
  height: 60px;
  width: 100%;
}