@-webkit-keyframes animationOpacity {
  0% {
    opacity: 1
  }
  90% {
    opacity: 0
  }
}
@-moz-keyframes animationOpacity {
  0% {
    opacity: 1
  }
  90% {
    opacity: 0
  }
}
@-o-keyframes animationOpacity {
  0% {
    opacity: 1
  }
  90% {
    opacity: 0
  }
}
@keyframes animationOpacity {
  0% {
    opacity: 1
  }
  90% {
    opacity: 0
  }
}
@-webkit-keyframes shake {
  from, to {
    transform: translate3d(0, 0, 0)
  }
  20%, 60% {
    transform: translate3d(-10px, 0, 0)
  }
  40%, 80% {
    transform: translate3d(10px, 0, 0)
  }
}
@-moz-keyframes shake {
  from, to {
    transform: translate3d(0, 0, 0)
  }
  20%, 60% {
    transform: translate3d(-10px, 0, 0)
  }
  40%, 80% {
    transform: translate3d(10px, 0, 0)
  }
}
@-o-keyframes shake {
  from, to {
    transform: translate3d(0, 0, 0)
  }
  20%, 60% {
    transform: translate3d(-10px, 0, 0)
  }
  40%, 80% {
    transform: translate3d(10px, 0, 0)
  }
}
@keyframes shake {
  from, to {
    transform: translate3d(0, 0, 0)
  }
  20%, 60% {
    transform: translate3d(-10px, 0, 0)
  }
  40%, 80% {
    transform: translate3d(10px, 0, 0)
  }
}
.materials_box {
  padding-top: 70px;
  padding-bottom: 50px
}
.materials_box > h1 {
  font-size: 50px;
  font-weight: bold;
  color: #000000
}
.materials_box .down_icon {
  background: url("../images/common/down_icons.png") no-repeat;
  background-size: 100% 100%;
  -moz-background-size: 100% 100%;
  -o-background-size: 100% 100%;
  -ms-background-size: 100% 100%;
  -webkit-background-size: 100% 100%
}
.materials_tab {
  border-bottom: 1px solid #e5e5e5
}
.materials_tab ul li {
  line-height: 70px;
  height: 70px;
  padding: 0 45px;
  position: relative;
  cursor: pointer
}
.materials_tab ul li:first-child {
  padding-left: 0
}
.materials_tab ul li:first-child::before {
  left: 0
}
.materials_tab ul li::before {
  display: block;
  content: "";
  position: absolute;
  left: 45px;
  bottom: 0;
  width: 100px;
  border-bottom: 2px solid #3f5aba;
  transform-origin: 0 0;
  transform: scaleX(0);
  -webkit-transform: scale(0);
  -o-transform: scaleX(0);
  -ms-transform: scaleX(0);
  -moz-transform: scaleX(0);
  -webkit-transition: transform .5s linear;
  -moz-transition: transform .5s linear;
  -o-transition: transform .5s linear;
  -ms-transition: transform .5s linear;
  transition: transform .5s linear
}
.materials_tab ul li.active {
  color: #3f5aba
}
.materials_tab ul li.active::before {
  transform: scaleX(1);
  -webkit-transform: scale(1);
  -o-transform: scaleX(1);
  -ms-transform: scaleX(1);
  -moz-transform: scaleX(1)
}
.materials_tab ul li:not(:last-child)::after {
  position: absolute;
  right: 0;
  top: 25px;
  bottom: 25px;
  display: block;
  content: "";
  width: 1px;
  border-left: 1px solid #cccccc
}
.finished_box h1 {
  font-size: 34px;
  color: #000000
}
.finished_list {
  text-align: center
}
.finished_list li:hover img {
  transform: scale(1.2);
  -webkit-transform: scale(1.2);
  -o-transform: scale(1.2);
  -ms-transform: scale(1.2);
  -moz-transform: scale(1.2)
}
.finished_list li:hover h2 {
  color: #3f5aba
}
.finished_list h2 {
  font-size: 24px;
  color: #222222;
  line-height: 50px
}
.finished_list img {
  display: block;
  width: 100%;
  height: auto
}
.about_title {
  color: #999999;
  text-transform: uppercase;
  line-height: 1.4;
  padding: 110px 0 50px
}
.about_title span {
  display: block;
  width: 66px;
  height: 75px;
  line-height: 75px;
  margin-right: 10px;
  text-align: center;
  color: #999999;
  background: url("../images/common/polygon_icon.png") no-repeat;
  background-size: 100% 100%;
  -moz-background-size: 100% 100%;
  -o-background-size: 100% 100%;
  -ms-background-size: 100% 100%;
  -webkit-background-size: 100% 100%
}
.materials_cont {
  margin-bottom: 10px
}
.materials_left h1 {
  padding-top: 70px;
  font-size: 34px;
	margin-bottom: 10px;
  color: #000000
}
.materials_left h3 {
  margin-top: 5px;
  color: rgba(0, 0, 0, 0.8);
	font-size: 16px;
	text-indent: 2em;
}
.silica_box {
  background: url("../images/material_bg.jpg") no-repeat right;
  background-size: cover;
  margin-bottom: 30px
}
.silica_info {
  width: 45%;
  padding: 200px 0
}
.silica_info h1 {
  margin-bottom: 20px;
  font-size: 34px;
  color: #fff
}
.silica_info h3 {
  color: rgba(255, 255, 255, 0.7);
	font-size: 16px;text-indent: 2em;
}
.silica_info .down_icon {
  margin: 60px 0 0
}
.area_boxs {
  padding-top: 30px
}
.area_list {
  text-align: center;
  padding: 20px 0 60px
}
.area_list li {
  width: calc(50% - 10px)
}
.area_list li:nth-child(2n) {
  margin-left: 20px
}
.area_list li:hover img {
  transform: scale(1.2);
  -webkit-transform: scale(1.2);
  -o-transform: scale(1.2);
  -ms-transform: scale(1.2);
  -moz-transform: scale(1.2)
}
.area_list li:hover h2 {
  color: #3f5aba
}
.area_list h2 {
  font-size: 24px;
  color: #222222;
  line-height: 50px
}
.area_list img {
  display: block;
  width: 100%;
  height: auto
}
.silica_boxs{background: #141c26;}
.silica_boxs .footer_up_box{background:#141c26;}
.silica_boxs .footer_up_box .footer_up_cont{background:#141c26;}
.silica_boxs .area_boxs{padding-top: 0;}
.silica_boxs .footer_up_box{padding-right: 0;}
.silica_boxs .finished_box h1{color: #fff;}
.silica_boxs .area_list li h2{color: #fff;}
.silica_boxs .silica_box{background-image: inherit;}
.silica_boxs .imgbox{width: 50%;float: left;padding-top:100px;}
.silica_boxs .silica_info{width: 50%;float: right;padding: 200px 0 100px;}
.silica_boxs .area_list li{width: calc(100%/3 - 10px)!important;margin-right: 15px;margin-left: 0!important;}
.silica_boxs .area_list li:nth-of-type(3n){margin-right: 0px;}
.silica_boxs .area_list{padding-bottom: calc(30px + 5vw);}

.materials_box3 .finished_list li{width: calc(100%/4 - 8px)!important;margin-right: 10px!important;}
.materials_box3 .finished_list li:nth-of-type(4n){margin-right:0px!important;}



@media screen and (min-width: 1000px) {
  .materials_left {
    width: 43%;margin-right: 7%;
  }
  .materials_tab {
    border-bottom: 1px solid #e5e5e5
  }
  .materials_tab ul li {
    line-height: 70px;
    height: 70px;
    padding: 0 45px;
    position: relative;
    cursor: pointer
  }
  .materials_tab ul li:first-child {
    padding-left: 0
  }
  .materials_tab ul li:first-child::before {
    left: 0
  }
  .materials_tab ul li::before {
    display: block;
    content: "";
    position: absolute;
    left: 45px;
    bottom: 0;
    width: 100px;
    border-bottom: 2px solid #3f5aba
  }
  .materials_tab ul li.active {
    color: #3f5aba
  }
  .materials_tab ul li:not(:last-child)::after {
    position: absolute;
    right: 0;
    top: 25px;
    bottom: 25px;
    display: block;
    content: "";
    width: 1px;
    border-left: 1px solid #cccccc
  }
  .materials_right {
    width: 50%
  }
  .finished_list {
    padding: 40px 0 70px
  }
  .finished_list li {
    width: calc(33.333% - 10px)
  }
  .finished_list li:not(:nth-child(3n)) {
    margin-right: 15px
  }
}
@media (min-width: 1000px) and (max-width: 1400px) {
  .materials_box {
    padding-top: 40px;
    padding-bottom: 30px
  }
  .materials_box > h1 {
    font-size: 30px
  }
  .materials_left h1 {
    padding-top: 40px;
    font-size: 24px
  }
  .materials_left h3 {
    margin-top: 5px;
    font-size: 15px
  }
  .finished_list {
    padding: 20px 0 70px
  }
  .finished_list h2 {
    font-size: 20px;
    line-height: 30px
  }
  .finished_box h1 {
    font-size: 26px
  }
  .about_title {
    padding: 70px 0 30px
  }
}
@media screen and (max-width: 999px) {
  .finished_box h1 {
    font-size: 18px
  }
  .finished_list {
    padding: 20px 0 20px
  }
  .finished_list li {
    width: calc(50% - 5px)
  }
  .finished_list li:nth-child(2n) {
    margin-left: 10px
  }
  .finished_list h2 {
    font-size: 10px;
    line-height: 30px
  }
  .silica_box {
    background: #162029
  }
  .silica_info {
    width: 100%;
    padding: 50px 0
  }
  .silica_info h1 {
    font-size: 34px
  }
  .silica_info .down_icon {
    margin: 60px 0 0
  }
  .area_boxs {
    padding-top: 20px
  }
  .area_list {
    padding: 10px 0 30px
  }
  .area_list li {
    width: calc(50% - 5px)
  }
  .area_list li:nth-child(2n) {
    margin-left: 10px
  }
  .area_list h2 {
    font-size: 10px;
    line-height: 40px
  }
}
@media (min-width: 768px) and (max-width: 999px) {
  .about_title {
    padding: 60px 0 30px
  }
  .about_title span {
    width: 50px;
    height: 57px;
    line-height: 57px;
    margin-right: 5px
  }
}
@media screen and (max-width: 768px) {
  .materials_box {
    padding-top: 30px;
    padding-bottom: 20px
  }
  .materials_box > h1 {
    font-size: 20px
  }
  .materials_tab ul li {
    line-height: 40px;
    height: 40px;
    padding: 0 25px;
    font-size: 14px
  }
  .materials_tab ul li::before {
    left: 25px;
    bottom: 0;
    width: 60px
  }
  .materials_tab ul li:not(:last-child)::after {
    top: 15px;
    bottom: 15px
  }
  .about_title {
    font-size: 10px;
    padding: 20px 0 10px
  }
  .about_title span {
    width: 30px;
    height: 34px;
    line-height: 34px;
    margin-right: 5px
  }
  .materials_left h1 {
    padding-top: 0px;
    font-size: 18px
  }
  .materials_left h3 {
    margin-top: 5px;
    font-size: 14px
  }
  .silica_info {
    padding: 30px 0
  }
  .silica_info h1 {
    font-size: 20px
  }
  .silica_info h3 {
    margin-top: 5px;
    font-size: 13px
  }
  .silica_info .down_icon {
    margin: 15px 0 0
  }
	.silica_boxs .imgbox{display: none;}
	.silica_boxs .silica_info{padding: 60px 10px 30px; width: 100%;}
	.materials_box3 .finished_list li{width: calc(50% - 4px)!important;margin-right: 8px!important;margin-left: inherit!important;}
	.materials_box3 .finished_list li:nth-of-type(2n){margin-right: 0!important;}
	
	
}
.finished_list li {
  margin-bottom: 20px;
}
.header_right ul > li {
  padding: 0 0;
}