header {
  height: 80px;
  background: -webkit-linear-gradient(top, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0));
  position: fixed;
  width: 100%;
  z-index: 9;
}
header .header {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: space-around;
  align-items: center;
  text-align: center;
}
header .header .logo {
  width: 30%;
  position: relative;
  left: -300px;
}
header .header > ul {
  position: relative;
  left: 300px;
  width: 50%;
  display: flex;
  justify-content: space-around;
}
header .header > ul > li {
  position: relative;
  padding: 0 5px;
}
header .header > ul > li > a {
  color: #fff;
  font-size: 22px;
}
header .header > ul .active::after {
  content: "";
  display: block;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 0;
  border-bottom: 2px solid #149243;
}
header .header > ul li::after {
  content: "";
  display: block;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-bottom: 2px solid #149243;
  transition: all 0.5s;
}
header .header > ul li:hover::after {
  width: 100%;
}
header .header div {
  width: 10%;
  color: #fff;
  font-size: 22px;
}
header .header div > a {
  color: #fff;
  font-size: 22px;
}
.banner2 {
  position: relative;
}
.banner2 .banner2-text {
  position: absolute;
  top: 50%;
  left: 10%;
  transform: translateY(-50%);
}
.banner2 .banner2-text h1 {
  font-size: 110px;
  color: #be995f;
}
.banner2 .banner2-text h1 > span {
  font-size: 22px;
  font-weight: 300;
}
.banner2 .banner2-text p {
  font-size: 18px;
  color: #be995f;
}
.banner2 .banner2-text h2 {
  font-size: 34px;
  color: #be995f;
  margin: 50px 0;
}
.banner2 .banner2-text .arrow div {
  width: 20px;
  height: 20px;
  border-right: 3px solid #be995f;
  border-bottom: 3px solid #be995f;
  transform: rotate(45deg);
}
.banner3 {
  position: relative;
}
.banner3 > img {
  min-height: 450px;
  object-fit: cover;
  object-position: left;
}
.banner3 .banner3-text {
  position: absolute;
  width: 36.45%;
  right: 10%;
  top: 50%;
  transform: translateY(-50%);
}
.banner3 .banner3-text h3 {
  font-size: 32px;
  color: #ccc;
  margin-bottom: 70px;
}
.banner3 .banner3-text h3 span {
  font-weight: 300;
}
.banner3 .banner3-text p {
  font-size: 18px;
  color: #ccc;
  margin-bottom: 20px;
  font-weight: 300;
  text-align: left;
}
.banner3 .banner3-text a {
  font-size: 18px;
  font-weight: 700;
  color: #ccc;
  border-bottom: 2px solid #fff;
  line-height: 1;
  float: right;
  padding-bottom: 5px;
}
.banner4 {
  position: relative;
}
.banner4 img:nth-child(1) {
  position: relative;
  left: 50%;
  transform: translate(-50%, 0);
  padding: 100px 0;
}
.banner4 img:nth-child(2) {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.banner4 .banner4-text-lt {
  position: absolute;
  font-size: 18px;
  color: #333;
  width: 17%;
  left: 25%;
  top: 52%;
  padding-bottom: 20px;
  border-bottom: 2px solid #7f7f7f;
  line-height: 1.5;
}
.banner4 .banner4-text-rt {
  position: absolute;
  width: 12.6%;
  right: 28.5%;
  bottom: 53%;
  padding-bottom: 20px;
  border-bottom: 2px solid #7f7f7f;
}
.banner4 .banner4-text-rt p:nth-child(1) {
  font-size: 18px;
  font-weight: 700;
  color: #333;
  line-height: 1.5;
}
.banner4 .banner4-text-rt p:nth-child(2) {
  font-size: 18px;
  font-weight: 300;
  color: #4d4d4d;
  line-height: 1.5;
}
.banner5 {
  position: relative;
}
.banner5 > img {
  min-height: 400px;
  object-fit: cover;
}
.banner5 .banner5-text {
  position: absolute;
  top: 50%;
  left: 10%;
  transform: translateY(-50%);
}
.banner5 .banner5-text h1 {
  font-size: 92px;
  color: #fff;
  margin: 0.5em 0;
}
.banner5 .banner5-text h2 {
  font-size: 64px;
  color: #fff;
  font-weight: 300;
}
.banner5 .banner5-text em {
  display: block;
  width: 100px;
  height: 0;
  border-bottom: 2px solid #fff;
  margin: 50px 0 80px 0;
}
.banner5 .banner5-text h3 {
  font-size: 32px;
  color: #fff;
  font-weight: 300;
  margin-bottom: 15px;
}
.banner5 .banner5-nav {
  width: 80%;
  position: absolute;
  bottom: 5%;
  left: 10%;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.banner5 .banner5-nav em {
  display: block;
  flex: 1;
  border-bottom: 2px solid rgba(255, 255, 255, 0.5);
  margin: 0 50px;
}
.banner5 .banner5-nav ul {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.banner5 .banner5-nav ul li {
  margin: 0 25px 10px;
}
.banner5 .banner5-nav ul li a {
  font-size: 22px;
  color: #fff;
  font-weight: 300;
  padding: 5px 10px;
  border: 1px solid #fff;
  border-radius: 5px;
  white-space: nowrap;
}
.banner5 .banner5-nav ul li:last-child a {
  font-size: 18px;
  border-bottom: 1px solid #fff;
  font-weight: 700;
}
.qulification {
  width: 100%;
  padding: 7% 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.qulification .title h2 {
  font-size: 60px;
  color: #1a1a1a;
}
.qulification .title h3 {
  font-size: 60px;
  color: #4d4d4d;
}
.qulification .title em {
  display: block;
  width: 100px;
  height: 0;
  border-bottom: 2px solid #4d4d4d;
  margin: 35px 0 55px 0;
}
.qulification .title h4 {
  font-size: 24px;
  color: #333;
}
.qulification .title h5 {
  font-size: 24px;
  font-weight: 300;
  color: #333;
}
.qulification .cert-swiper {
  width: 69.5%;
  height: 100%;
  padding-right: 9%;
  position: relative;
}
.qulification .cert-swiper .certSwiper {
  width: 100%;
  height: 100%;
  position: initial;
}
.qulification .cert-swiper .swiper-slide {
  text-align: center;
  /* Center slide text vertically */
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}
.qulification .cert-swiper .cert-block {
  width: 100%;
  height: 0;
  padding-bottom: 140%;
  background: #aaa;
  position: relative;
}
.qulification .cert-swiper .swiper-slide img {
  position: absolute;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.qulification .cert-swiper .swiper-button-prev:after,
.qulification .cert-swiper .swiper-rtl .swiper-button-next:after,
.qulification .cert-swiper .swiper-button-next:after,
.qulification .cert-swiper .swiper-rtl .swiper-button-prev:after {
  content: none;
}
.qulification .cert-swiper .swiper-button-prev,
.qulification .cert-swiper .swiper-container-rtl .swiper-button-next {
  width: 50px;
  height: 50px;
  background: url('../images/swiper-button.png');
  background-position: 0 -83px;
  right: 0;
  left: 100%;
  visibility: visible;
  transform: translate(-100%, 100%);
}
.qulification .cert-swiper .swiper-button-next,
.qulification .cert-swiper .swiper-container-rtl .swiper-button-prev {
  width: 50px;
  height: 50px;
  background: url('../images/swiper-button.png');
  background-position: 0 0;
  right: 0;
  visibility: visible;
  transform: translate(0, -100%);
}
.criterion {
  width: 100%;
  position: relative;
}
.criterion .criterion-title {
  position: absolute;
  bottom: 10%;
  left: 33%;
}
.criterion .criterion-title h1 {
  font-size: 98px;
  color: #149243;
  margin: 0.3em 0;
}
.criterion .criterion-title p {
  font-size: 10px;
  color: #ccc;
}
.criterion .criterion-list {
  position: absolute;
  right: 8%;
  top: 0;
  width: 42%;
  height: 100%;
  padding: 5% 0 3% 0;
}
.criterion .criterion-list .criterion-content {
  height: 100%;
  width: 100%;
  overflow-y: auto;
}
.criterion .criterion-list .criterion-content h4 {
  font-size: 23px;
  color: #149243;
  margin-bottom: 15px;
  text-align: left;
}
.criterion .criterion-list .criterion-content p {
  font-size: 16px;
  color: #e6e6e6;
  margin-bottom: 30px;
  line-height: 1.8;
  text-align: left;
}
.index-contact {
  background-color: #b3b3b3;
  padding: 5% 10%;
}
.index-contact .index-contact-content {
  width: 100%;
  height: 100%;
  background-color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.index-contact .index-contact-content .index-contact-lt {
  width: 50%;
  padding: 0 8%;
}
.index-contact .index-contact-content .index-contact-lt form {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.index-contact .index-contact-content .index-contact-lt form h5 {
  display: flex;
  align-items: center;
  font-size: 18px;
  margin-bottom: 10px;
}
.index-contact .index-contact-content .index-contact-lt form h5 span {
  font-size: 10px;
  vertical-align: middle;
  margin-left: 15px;
}
.index-contact .index-contact-content .index-contact-lt form input {
  width: 100%;
  height: 32px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
  padding-left: 20px;
}
.index-contact .index-contact-content .index-contact-lt form textarea {
  width: 100%;
  height: 125px;
  resize: none;
  border: 1px solid #ccc;
  padding: 15px 20px;
}
.index-contact .index-contact-content .index-contact-lt form button {
  width: 135px;
  height: 30px;
  margin-top: 50px;
  background-color: #4d4d4d;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  padding: 0;
  border: 0;
}
.index-contact .index-contact-content .index-contact-rt {
  width: 45%;
  height: 0;
  padding-bottom: 45%;
  position: relative;
}
.index-contact .index-contact-content .index-contact-rt img {
  display: block;
  position: absolute;
  width: 100%;
  height: 100%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
footer {
  width: 100%;
  padding: 120px 100px 0 100px;
  background-color: #333;
}
footer .footer {
  width: 100%;
}
footer .footer .footer-top {
  width: 100%;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}
footer .footer .footer-top .footer-lt {
  width: 11%;
  text-align: center;
}
footer .footer .footer-top .footer-lt .msg-tool {
  display: flex;
  justify-content: space-around;
}
footer .footer .footer-top .footer-lt .msg-tool div {
  margin-top: 30px;
  width: 40px;
  height: 40px;
  background: url('../images/msg-tool.png') no-repeat;
}
footer .footer .footer-top .footer-lt .msg-tool div:nth-child(2) {
  background-position: -65px 0;
}
footer .footer .footer-top .footer-lt .msg-tool div:nth-child(3) {
  background-position: -130px 0;
}
footer .footer .footer-top .footer-mid {
  width: 41%;
  display: flex;
  justify-content: space-between;
}
footer .footer .footer-top .footer-mid ul span {
  display: inline-block;
  font-size: 15px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 20px;
}
footer .footer .footer-top .footer-mid ul li {
  margin-bottom: 5px;
}
footer .footer .footer-top .footer-mid ul li a {
  font-size: 15px;
  color: #fff;
}
footer .footer .footer-top .footer-mid ul li a:hover {
  text-decoration: underline !important;
}
footer .footer .footer-top .footer-rt {
  width: 15.4%;
}
footer .footer .footer-top .footer-rt p {
  font-size: 18px;
  color: #ccc;
}
footer .footer .footer-top .footer-rt p span {
  font-size: 16px;
}
footer .footer .footer-top .footer-rt p:nth-child(1) {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
}
footer .footer .footer-top .footer-rt p:nth-child(1) span {
  color: #ccc;
}
footer .footer .footer-bt {
  margin-top: 120px;
  width: 100%;
  padding: 10px 0;
  border-top: 2px solid #e5e5e5;
  text-align: center;
}
footer .footer .footer-bt span {
  font-size: 15px;
  color: #fff;
  font-weight: 300;
}
footer .footer .footer-bt span {
  margin-left: 15px;
}
footer .footer .footer-bt p {
  font-size: 12px;
  color: #fff;
  font-weight: 700;
}
footer .footer .footer-bt p a {
  color: #fff;
}
footer .footer .footer-bt p a:hover {
  text-decoration: underline !important;
}
.hzzs {
  padding: 0;
  width: 100%;
}
.brand {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
}
.brand > img {
  display: block;
  min-height: 400px;
  min-width: 100%;
  object-fit: cover;
}
.brand .hzzs-content {
  height: 100%;
  padding: 5% 0 4% 0;
  width: 100%;
  position: absolute;
  top: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}
.brand .hzzs-content .brand-title {
  top: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.brand .hzzs-content .brand-title h3 {
  font-size: 30px;
  color: #fff;
  font-weight: 700;
  margin: 20px 0 15px 0;
}
.brand .hzzs-content .brand-title h4 {
  font-size: 18px;
  color: #fff;
  font-weight: 300;
}
.brand .hzzs-content .brand-title h4 span {
  font-weight: 700;
  color: #149243;
}
.brand .hzzs-content .brand-content {
  width: 50%;
  display: flex;
  justify-content: space-between;
}
.brand .hzzs-content .brand-content .brand-block {
  padding: 40px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  height: 245px;
  width: 130px;
  border-radius: 15px;
  background-color: rgba(255, 255, 255, 0.5);
}
.brand .hzzs-content .brand-content .brand-block p {
  width: 100%;
  text-align: center;
  font-size: 18px;
  color: #fff;
}
.gywm-content {
  display: flex;
}
.gywm-content .gywm-lt {
  position: relative;
  width: 50%;
  height: 0;
  padding-bottom: 50%;
}
.gywm-content .gywm-lt img {
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.gywm-content .gywm-rt {
  padding: 10% 5% 0 5%;
  flex: 1;
}
.gywm-content .gywm-rt > div p {
  font-size: 20px;
  color: #333;
  margin-bottom: 10px;
}
.gywm-content .gywm-rt > img {
  display: block;
  float: right;
  margin-top: 15%;
}
.dev {
  position: relative;
}
.dev .dev-title {
  position: absolute;
  left: 10%;
  top: 10%;
  text-align: left;
}
.dev .dev-title h2 {
  font-size: 76px;
  font-weight: 700;
  color: #fff;
  margin: 90px 0 140px 0;
}
.dev .dev-title em {
  display: block;
  width: 88px;
  height: 7px;
  background-color: #fff;
}
.dev .dev-article {
  position: absolute;
  top: 0;
  right: 0;
  width: 57.5%;
  padding: 5% 5% 3% 0;
  height: 100%;
}
.dev .dev-article .dev-article-content {
  width: 100%;
  height: 100%;
  overflow-y: auto;
}
.dev .dev-article .dev-article-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin: 25px 0 15px 0;
  color: #149243;
  display: flex;
  align-items: center;
  line-height: 1;
}
.dev .dev-article .dev-article-content h3::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #149243;
  margin-right: 8px;
}
.dev .dev-article .dev-article-content p {
  font-size: 16px;
  color: #fff;
  font-weight: 300;
  line-height: 1.5;
  text-align: left;
}
.gywm-banner4 {
  background: url('../images/gywm-bg.jpg') no-repeat;
  background-size: cover;
}
.gywm-banner4 img:nth-child(2) {
  width: 148px;
}
.gywm-banner4 .banner4-text-lt {
  color: #fff !important;
  border-bottom: 2px solid rgba(255, 255, 255, 0.7) !important;
}
.gywm-banner4 .banner4-text-rt {
  border-bottom: 2px solid rgba(255, 255, 255, 0.7) !important;
}
.gywm-banner4 .banner4-text-rt p {
  color: #fff !important;
}
.world-map {
  background-color: #f2f2f2;
}
.world-map .map {
  width: 100%;
  padding: 70px 0 140px 0;
  text-align: center;
}
.world-map > div {
  padding-bottom: 70px;
}
.world-map > div p {
  text-align: center;
  font-size: 22px;
  color: #333;
}
.world-map > div p span {
  font-weight: 700;
  color: #62b66d;
}
.dt {
  width: 100%;
  padding: 3% 12.5% 3% 3.125%;
}
.dt .dt-content {
  width: 100%;
  display: flex;
  justify-content: space-between;
  margin-bottom: 5%;
}
.dt .dt-content .dt-lt {
  width: 45%;
}
.dt .dt-content .dt-rt {
  width: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}
.dt .dt-content .dt-rt .dt-rt-content h3 {
  font-size: 36px;
  font-weight: normal;
}
.dt .dt-content .dt-rt .dt-rt-content h4 {
  font-size: 38px;
  color: #333;
  margin: 10px 0 30px 0;
}
.dt .dt-content .dt-rt .dt-rt-content > div p {
  font-size: 18px;
  color: #4d4d4d;
  font-weight: 300;
}
.dt .dt-content .dt-rt .dt-rt-content .more a {
  display: block;
  float: right;
  padding-bottom: 5px;
  line-height: 1;
  border-bottom: 1px solid #333;
  font-size: 12px;
}
.dt .dt-content .dt-rt .box {
  position: absolute;
  bottom: 0;
}
.dtxq {
  width: 100%;
  padding: 3% 12.5% 3% 3.125%;
}
.dtxq .dtxq-content {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.dtxq .dtxq-content .dtxq-lt {
  width: 45%;
}
.dtxq .dtxq-content .dtxq-rt {
  width: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.dtxq .dtxq-content .dtxq-rt h3 {
  width: 100%;
  font-size: 38px;
  font-weight: normal;
  color: #333;
}
.dtxq .dtxq-content .dtxq-rt h4 {
  width: 100%;
  font-size: 26px;
  margin: 5px 0 50px 0;
  font-weight: normal;
}
.dtxq .dtxq-content .dtxq-rt .dtxq-art p {
  width: 100%;
  font-size: 18px;
  color: #4d4d4d;
  font-weight: 300;
}
.dtxq .dtxq-content .dtxq-rt a {
  display: inline-block;
  padding-bottom: 5px;
  line-height: 1;
  border-bottom: 1px solid #333;
  font-size: 12px;
  text-align: center;
  margin: 50px 0;
}
.dtxq .dtxq-content .dtxq-rt .dtxq-pic {
  width: 100%;
  display: flex;
  justify-content: space-between;
}
.dtxq .dtxq-content .dtxq-rt .dtxq-pic > div {
  width: 48%;
  background-color: #aaa;
  height: 0;
  padding-bottom: 35%;
  position: relative;
}
.dtxq .dtxq-content .dtxq-rt .dtxq-pic > div img {
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.banner-text {
  position: absolute;
  top: 25%;
  left: 50%;
}
.banner-text h2 {
  font-size: 92px;
  font-weight: 300;
  color: #fff;
}
.banner-text h3 {
  font-size: 68px;
  color: #fff;
  font-weight: 700;
  margin: 10px 0 85px 0;
}
.banner-text h4 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
}
.banner-text h5 {
  font-size: 18px;
  font-weight: normal;
  color: #fff;
}
.cpzx-cate {
  position: relative;
}
.cpzx-cate ul {
  position: absolute;
  width: 50%;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}
.cpzx-cate ul li a {
  display: block;
  width: 153px;
  height: 153px;
  transform: translateY(-30%);
  background-color: rgba(26, 26, 26, 0.8);
  color: rgba(255, 255, 255, 0.5);
  border-radius: 10px;
  line-height: 153px;
  text-align: center;
  font-size: 26px;
  font-weight: 700;
  transition: all 0.5s;
  margin-bottom: 3%;
}
.cpzx-cate ul li a:hover {
  background-color: rgba(255, 255, 255, 0.7);
  color: rgba(0, 0, 0, 0.5);
}
.cpzx-cate ul li .active {
  background-color: rgba(255, 255, 255, 0.7);
  color: rgba(0, 0, 0, 0.5);
}
.prod-detail-content {
  width: 100%;
  display: flex;
}
.prod-detail-content .prod-detail-pic {
  width: 63.5%;
  height: 0;
  padding-bottom: 35%;
  background-color: #ccc;
  position: relative;
}
.prod-detail-content .prod-detail-pic img {
  display: block;
  position: absolute;
  width: 100%;
  height: 100%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.prod-detail-content .prod-detail-intro {
  flex: 1;
  padding: 5% 6% 0 6.7%;
}
.prod-detail-content .prod-detail-intro .prod-detail-intro-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 100px;
}
.prod-detail-content .prod-detail-intro .prod-detail-intro-title span:nth-child(1) {
  font-size: 32px;
}
.prod-detail-content .prod-detail-intro .prod-detail-intro-title span:nth-child(2) {
  font-size: 28px;
  font-weight: 700;
}
.prod-detail-content .prod-detail-intro .prod-detail-intro-params p {
  font-size: 18px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.prod-detail-content .prod-detail-intro .prod-detail-intro-params p span {
  font-size: 18px;
}
.image-display {
  width: 100%;
  background-color: #f2f2f2;
  padding: 80px 0 50px 0;
}
.image-display .image-display-title {
  text-align: center;
}
.image-display .image-display-title h3 {
  font-size: 48px;
  color: #4d4d4d;
  font-weight: normal;
}
.image-display .image-display-title h2 {
  font-size: 56px;
  font-weight: 700;
  color: #333;
}
.image-display .image {
  width: 83.333%;
  display: flex;
  justify-content: space-between;
  margin: 100px auto 80px auto;
}
.image-display .image > div {
  width: 45%;
  height: 0;
  padding-bottom: 30%;
  background-color: #ccc;
  position: relative;
}
.image-display .image > div img {
  position: absolute;
  display: block;
  width: 100%;
  height: 100%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.image-display .more {
  text-align: center;
}
.image-display .more a {
  font-size: 30px;
  color: #333;
  font-weight: normal;
  border-bottom: 2px solid #333;
}
.main {
  width: 100%;
  background-color: #f2f2f2;
  overflow: hidden;
}
.main .main-content {
  width: 80%;
  margin: 165px auto 120px auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.main .main-content aside {
  width: 22.14%;
  /*第一层*/
  /*第二层*/
}
.main .main-content aside .treebox {
  box-sizing: border-box;
}
.main .main-content aside .menu {
  overflow: hidden;
}
.main .main-content aside .level1 > a {
  width: 100%;
  height: 80px;
  background-color: #808080;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 30px;
  padding-right: 30px;
  margin-bottom: 30px;
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 15px;
}
.main .main-content aside .level1 > a span {
  font-weight: normal;
  transition: all 0.5s;
}
.main .main-content aside .menu li.level1 a.current {
  background-color: #333;
}
.main .main-content aside .menu li ul {
  overflow: hidden;
}
.main .main-content aside .menu li ul.level2 {
  display: none;
}
.main .main-content aside .menu li ul.level2 li {
  width: 100%;
  padding-left: 15%;
  margin-bottom: 20px;
  font-size: 23px;
}
.main .main-content aside .menu li ul.level2 li a {
  color: #666;
  letter-spacing: 0.3em;
}
.main .main-content aside .menu li ul.level2 li a.act {
  color: #149243;
  font-weight: 700;
}
.main .main-content aside .menu li ul.level2 li a:hover {
  color: #149243;
}
.main .main-content .prod-list {
  width: 72.27%;
}
.main .main-content .prod-list .prod-list-content {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
}
.main .main-content .prod-list .prod-list-content .prod-block {
  width: 19%;
  height: 0;
  padding-bottom: 19%;
  background-color: #808080;
  margin: 0 3% 60px 3%;
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
}
.main .main-content .prod-list .prod-list-content .prod-block img {
  position: absolute;
  display: block;
  width: 100%;
  height: 100%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  object-fit: cover;
}
.main .main-content .prod-list .prod-list-content .prod-block .mask {
  position: absolute;
  height: 0%;
  width: 100%;
  bottom: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.5);
  transition: all 0.5s;
}
.main .main-content .prod-list .prod-list-content .prod-block .mask h5 {
  font-size: 18px;
  color: #fff;
  margin: 20px 0 50px 30px;
}
.main .main-content .prod-list .prod-list-content .prod-block .mask a {
  display: block;
  font-size: 18px;
  color: #fff;
  line-height: 1.8;
  margin-left: 0 auto;
  text-align: center;
}
.main .main-content .prod-list .prod-list-content .prod-block .mask a em {
  display: inline-block;
  width: 20px;
  height: 20px;
  vertical-align: middle;
  background: url('../images/mask-icon.png') no-repeat;
  margin: 0 30px 0 0;
}
.main .main-content .prod-list .prod-list-content .prod-block .mask .vr em {
  background-position: 0 -33px;
}
.main .main-content .prod-list .prod-list-content .prod-block .mask .download em {
  background-position: 0 -63px;
}
.main .main-content .prod-list .prod-list-content .prod-block .mask a:hover {
  color: #149243;
}
.main .main-content .prod-list .prod-list-content .prod-block:hover .mask {
  display: block;
  height: 100%;
}
.box {
  width: 100%;
  text-align: center;
  margin-top: 40px;
}
.pagination {
  display: flex !important;
  text-align: center;
  justify-content: center;
  flex-wrap: wrap;
}
.pagination > li {
  padding: 0px 10px;
  border: 0;
  margin: 0px 3px;
  color: #fff;
  background-color: #333;
}
.pagination .active {
  color: #000;
  background-color: #b3b3b3;
}
.pagination .active a {
  color: #000;
}
.pagination li a {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}
.banner-img {
  position: relative;
}
.banner-img > img {
  width: 100%;
  max-width: none;
}
footer .footer .footer-bt span a {
  font-size: 15px;
  color: #fff;
  font-weight: 300;
  margin-left: 15px;
}