.banner {
  width: 100%;
  height: 460px;
  background-image: url(/images/business/pcb/through-hole/banner-1.png);
  background-size: cover;
  background-position: center center;
}
.banner .w-1200 {
  height: 100%;
  padding: 160px 0 0;
  position: relative;
}
.banner .w-1200 p {
  max-width: 652px;
  font-size: 36px;
  color: #303133;
  line-height: 50px;
  font-weight: 600;
}
.banner .w-1200 .contact-btn {
  width: 106px;
  height: 32px;
  background-color: #2D914B;
  border: none;
  font-size: 14px;
  color: #fff;
  position: absolute;
  left: 0;
  bottom: 88px;
}
.page-nav {
  width: 100%;
  height: 60px;
  background: #f4f5f7;
  box-shadow: 0px 3px 23px 0px #f4f5f7;
}
.page-nav ul {
  display: flex;
  justify-content: space-between;
}
.page-nav ul .nav-item {
  line-height: 60px;
  text-align: center;
  font-size: 16px;
  color: #303133;
  display: inline-block;
  vertical-align: middle;
}
.page-nav ul .nav-item a {
  height: 57px;
  display: inline-block;
  position: relative;
  border-bottom: 3px solid #f4f5f7;
}
.page-nav ul .nav-item:hover a {
  color: #2D914B;
}
.page-nav ul .nav-item.active a {
  color: #2D914B;
  border-color: #2D914B;
}
.main {
  font-size: 0;
}
.main .sec-1 {
  padding: 64px 0 ;
}
.main .sec-1 .title {
  text-align: center;
  font-size: 30px;
  color: #191919;
  line-height: 30px;
  font-weight: 600;
}
.main .sec-1 > div {
  background: #f4f5f7;
  height: 385px;
  margin-top: 56px;
  box-sizing: border-box;
  padding: 32px 50px 0;
}
.main .sec-1 > div .content {
  display: flex;
  align-items: center;
}
.main .sec-1 > div .content .left img {
  width: 411px;
  height: 321px;
  display: block;
}
.main .sec-1 > div .content .right {
  width: 639px;
  margin-left: 50px;
}
.main .sec-1 > div .content .right h3 {
  font-size: 24px;
  color: #191919;
  line-height: 30px;
  font-weight: 600;
  margin-bottom: 5px;
  padding-left: 19px;
}
.main .sec-1 > div .content .right p {
  font-size: 16px;
  color: #787878;
  line-height: 24px;
  word-spacing: 4px;
}
.main .sec-2 {
  padding: 64px 0;
  background: #f9f9f9;
}
.main .sec-2 .title {
  text-align: center;
  font-size: 30px;
  color: #191919;
  line-height: 30px;
  font-weight: 600;
}
.main .sec-2 .desc {
  text-align: center;
  font-size: 16px;
  color: #909399;
  line-height: 26px;
  margin-top: 16px;
  word-spacing: 4px;
}
.main .sec-2 ul {
  display: flex;
  justify-content: space-between;
  margin-top: 56px;
}
.main .sec-2 ul li {
  width: 280px;
}
.main .sec-2 ul li img {
  width: 282px;
  height: 183px;
  display: block;
}
.main .sec-2 ul li p {
  width: 282px;
  height: 108px;
  background: #ffffff;
  border-radius: 0px 2px 42px 0px;
  text-align: center;
  font-size: 20px;
  color: #191919;
  font-weight: 600;
  line-height: 30px;
  box-sizing: border-box;
  padding: 24px;
}
.main .sec-3 {
  padding: 64px 0;
  background: url(/images/business/overview/6.png) no-repeat;
  background-size: cover;
  background-position: center center;
}
.main .sec-3 .title {
  text-align: center;
  font-size: 30px;
  color: #191919;
  line-height: 30px;
  font-weight: 600;
}
.main .sec-3 ul {
  display: flex;
  justify-content: center;
  margin-top: 56px;
}
.main .sec-3 ul li:first-child {
  margin-right: 32px;
}
.main .sec-3 ul li img {
  width: 390px;
  height: 201px;
  display: block;
}
.main .sec-4 {
  height: 290px;
  background: url(/images/business/overview/9.png) no-repeat;
  background-size: cover;
  background-position: center center;
  box-sizing: border-box;
  padding-top: 19px;
}
.main .sec-4 > div {
  display: flex;
  align-items: center;
}
.main .sec-4 > div .left {
  width: 750px;
}
.main .sec-4 > div .left .t {
  font-size: 30px;
  line-height: 30px;
  font-weight: 600;
  color: #fff;
}
.main .sec-4 > div .left .d {
  font-size: 18px;
  line-height: 25px;
  color: #fff;
  margin-top: 32px;
}
.main .sec-4 > div .right {
  margin-left: 98px;
}
.main .sec-4 > div .right img {
  display: block;
  width: 256px;
  height: 251px;
}
.main .sec-5 {
  height: 375px;
  background: url(/images/business/commerce/18-1.png) no-repeat;
  background-size: cover;
  box-sizing: border-box;
  padding-top: 64px;
}
.main .sec-5 > div .t {
  padding-bottom: 24px;
  width: 740px;
  border-bottom: 1px solid #ccc;
}
.main .sec-5 > div .t p {
  color: #303133;
  line-height: 30px;
  font-size: 24px;
  font-weight: 600;
}
.main .sec-5 > div .itms {
  display: flex;
  flex-wrap: wrap;
}
.main .sec-5 > div .itms li {
  display: flex;
  margin-right: 30px;
  margin-top: 24px;
  align-items: start;
}
.main .sec-5 > div .itms li .icon {
  display: block;
  height: 24px;
  width: 24px;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}
.main .sec-5 > div .itms li .icon.icon1 {
  background-image: url(/images/business/commerce/18-3.png);
}
.main .sec-5 > div .itms li .icon.icon2 {
  background-image: url(/images/business/commerce/18-4.png);
}
.main .sec-5 > div .itms li .icon.icon4 {
  background-image: url(/images/business/commerce/18-6.png);
}
.main .sec-5 > div .itms .val {
  font-size: 18px;
  color: #303133;
  line-height: 24px;
  margin-left: 12px;
}
.main .sec-5 > div .itms .val b {
  font-size: 16px;
}
.main .sec-5 > div .btns {
  margin-top: 32px;
}
.main .sec-5 > div .btns a {
  font-size: 16px;
  line-height: 22px;
  padding: 8px 29px;
  display: inline-flex;
  align-items: center;
}
.main .sec-5 > div .btns a .icon {
  margin: 0 10px 0 0;
  background-image: url(/images/business/overview/11.png);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  display: inline-block;
  width: 16px;
  height: 16px;
}
.main .sec-5 > div .btns a.contact {
  background-color: #0DA658;
  border: 1px solid #0DA658;
  color: #fff;
}
.main .sec-5 > div .btns a.contact:hover {
  opacity: 0.9;
}