/*
YUI 3.5.0 (build 5089)
Copyright 2012 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/
html{color:#000;background:#FFF}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0}table{border-collapse:collapse;border-spacing:0}fieldset,img{border:0}address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal}ol,ul{list-style:none}caption,th{text-align:left}h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal}q:before,q:after{content:''}abbr,acronym{border:0;font-variant:normal}sup{vertical-align:text-top}sub{vertical-align:text-bottom}input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit}input,textarea,select{*font-size:100%}legend{color:#000}#yui3-css-stamp.cssreset{display:none}

* {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
*:before,
*:after {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}

body {
  min-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  font-size: 14px;
  font-family: "Microsoft Yahei", "Arial";
  background-color: #fff;
}
a {
  color: #666;
  text-decoration: none;
}

.pull-left {
  float: left;
}
.pull-right {
  float: right;
}
.clearfix:before,
.clearfix:after {
  display: table;
  content: " ";
}
.clearfix:after {
  clear: both;
}

.w1200 {
  width: 1200px;
  margin-left: auto;
  margin-right: auto;
  overflow: hidden;
}
.center {
  text-align: center;
}

/***************** header S *****************/
.header {
  padding: 18px 0;
}
.header .logo {
  width: 370px;
  font-size: 32px;
  font-weight: bold;
}
.header .logo a {
  display: block;
}
.header .search_box {
  width: 500px;
  text-align: right;
  color: #666;
  font-size: 14px;
  margin-top: 20px
}
.header .search_box .input_text {
  height: 30px;
  line-height: 30px;
  border: 1px solid #d1d1d1;
  width: 200px;
  outline: none;
  padding: 0 5px;
  color: #666
}
.header .search_box .search_btn {
  width: 60px;
  height: 30px;
  font-size: 14px;
  line-height: 30px;
  color: #fff;
  background: #c72322;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  outline: none;
  transition: all 0.3s;
}
.header .search_box .search_btn:hover {
  background: #c74746;
}
.navbg {
  height: 50px;
}
.navbg .inner {
  background-color: #2b2b2b;
}
.navbg .inner.fixed {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 99;
  width: 100%;
  height: 50px;
}
.nav li {
  float: left;
  margin-right: 20px;
}
.nav li a {
  display: block;
  width: 125px;
  height: 50px;
  line-height: 50px;
  text-align: center;
  font-size: 16px;
  color: #fff;
}
.nav li a:hover {
  color: #fff;
  text-decoration: none;
  background-color: #ff6637;
}
.nav li.active a {
  text-decoration: none;
  background-color: #ff6637;
}
/***************** header E *****************/

/***************** banner S *****************/
.banner {
  position: relative;
  height: 650px;
  overflow: hidden;
}
.banner video {
  position: relative;
  width: 100%;
  height: auto;
  margin-top: -7rem;
  margin-bottom: -6rem;
  background: #000;
}
.banner .mask {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 8;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, .6);
}
.banner .text {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 10;
  width: 700px;
  margin-top: -90px;
  margin-left: -350px;
}
.banner .text p {
  text-align: center;
  font-size: 100px;
  font-weight: bold;
  color: #fff;
}
/***************** banner E *****************/


/***************** footer S *****************/
.copyright {
  height: 60px;
  line-height: 60px;
  text-align: center;
  font-size: 12px;
  color: #bbb;
  background-color: #22262a;
}
.copyright a {
  margin: 0 5px;
  color: #bbb;
}
.copyright a:hover {
  color: #fff;
}

.backtop {
  position: fixed;
  right: 0;
  bottom: 60px;
  z-index: 10;
  width: 50px;
  height: 50px;
  background: url(../images/backtop.png) no-repeat;
  cursor: pointer;
  opacity: .8;
  -webkit-transition: opacity .2s ease-out;
     -moz-transition: opacity .2s ease-out;
          transition: opacity .2s ease-out;
}
.backtop:hover {
  opacity: 1;
}
/***************** footer E *****************/

.problem {
  overflow: hidden;
}
.section-title {
  padding: 60px 0;
  text-align: center;
  color: #060606;
  font-size: 36px;
  font-weight: bold;
}
.problem_content {
  position: relative;
  height: 710px;
  background: url(../images/problem.jpg) no-repeat center;
}
.problem_box {
  position: absolute;
  width: 280px;
}
.problem_box strong {
  color: #f1675c;
  font-size: 20px;
  line-height: 40px;
}
.problem_box p {
  color: #818181;
  font-size: 16px;
  line-height: 26px;
}
.problem_1 {
  left: 210px;
  top: 20px;
}
.problem_2 {
  left: 700px;
  top: 20px;
}
.problem_3 {
  left: 62px;
  top: 202px;
}
.problem_4 {
  left: 862px;
  top: 202px;
}
.problem_5 {
  left: 117px;
  top: 400px;
}
.problem_6 {
  left: 778px;
  top: 400px;
}


.advantage {
  height: 400px;
  margin-top: 50px;
}
.advantage .advantage_left {
  width: 700px;
}
.advantage .advantage_left h2 {
  color: #151515;
  font-size: 18px;
  font-weight: normal;
}
.advantage .advantage_left span {
  display: inline-block;
  height: 30px;
  margin-bottom: 20px;
  line-height: 30px;
  color: #999;
  border-bottom: 2px solid #f13a3a;
}
.advantage .advantage_left p {
  margin-bottom: 20px;
  line-height: 25px;
  color: #666;
}
.advantage .advantage_right {
  position: relative;
  width: 400px;
  font-size: 18px;
  color: #fff;
}
.advantage .advantage_right > div {
  position: absolute;
  text-align: center;
  background-position: center center;
  background-repeat: no-repeat;
}
.advantage .advantage_1 {
  left: 50px;
  top: 0;
  width: 150px;
  height: 160px;
  line-height: 160px;
  background-image: url(../images/advantage_1.png);
}
.advantage .advantage_2 {
  left: 208px;
  top: 45px;
  width: 120px;
  height: 120px;
  line-height: 120px;
  background-image: url(../images/advantage_2.png);
}
.advantage .advantage_3 {
  left: 8px;
  top: 145px;
  width: 130px;
  height: 130px;
  line-height: 130px;
  background-image: url(../images/advantage_3.png);
}
.advantage .advantage_4 {
  left: 130px;
  top: 155px;
  width: 160px;
  height: 160px;
  line-height: 160px;
  background-image: url(../images/advantage_4.png);
}


.case {
  padding-bottom: 50px;
  background: url(../images/bg-case.jpg) center no-repeat;
  background-size: cover;
}
.case .section-title {
  padding-top: 100px;
  padding-bottom: 80px;
  color: #fff;
}
.case .tabs {
  position: relative;
}
.case .tabs .hd {
  width: 158px;
  margin-top: 30px;
  padding-right: 25px;
  border-right: 1px #fff solid;
}
.case .tabs .hd ul {
  position: relative;
  display: block;
  width: 100%;
  height: 300px;
  text-align: center;
  font-size: 18px;
  color: #fff;
}
.case .tabs .hd ul li {
  display: block;
  width: 100%;
  height: 47px;
  line-height: 47px;
  margin-bottom: 8px;
  border-radius: 2px;
  cursor: pointer;
}
.case .tabs .hd ul li.active {
  background: #3091f2;
}
.case .tabs .bd {
  position: relative;
  width: 987px;
  height: 550px;
  overflow: hidden;
}
.case .tabs .bd > div {
  width: 100%;
  height: 100%;
}
.case .tabs .bd .show {
  width: 600px;
  height: 337px;
  color: #fff;
}
.case .tabs .bd .show video {
  width: 100%;
  height: 100%;
  background: #000;
}
.case .tabs .bd .show h2 {
  padding-top: 25px;
  padding-bottom: 10px;
  font-size: 24px;
}
.case .tabs .bd .show p {
  height: 60px;
  padding-bottom: 15px;
  line-height: 24px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.case .tabs .bd .show a {
  display: inline-block;
  padding: 0 30px;
  line-height: 36px;
  color: #fff;
  border: 1px solid #ccc;
  -webkit-transition: background-color .2s ease-out;
     -moz-transition: background-color .2s ease-out;
          transition: background-color .2s ease-out;
}
.case .tabs .bd .show a:hover {
  border-color: #ff6637;
  background-color: #ff6637;
}

.case .imglist {
  width: 360px;
}
.case .imglist li {
  float: left;
  width: 50%;
  padding: 0 10px;
  margin-bottom: 10px;
}
.case .imglist li .inner {
  position: relative;
  display: block;
  width: 100%;
  text-align: center;
  color: #fff;
  cursor: pointer;
}
.case .imglist li .inner:after {
  position: absolute;
  left: 50%;
  top: 83px;
  content: " ";
  display: block;
  width: 50px;
  height: 50px;
  margin-left: -25px;
  background: rgba(0, 0, 0, .3) url(../images/icon-play.png) center no-repeat;
  border-radius: 25px;
}
.case .imglist li .inner:hover:after {
  background-color: rgba(255, 102, 55, .8);
}
.case .imglist li img {
  width: 100%;
  height: 200px;
  padding: 10px;
  background: rgba(255, 255, 255, .3);
  border: 1px solid #b9babe;
}
.case .imglist li.active img {
  /*background: #ff6637;
  border-color: #ff6637;*/
}
.case .imglist li p {
  display: none;
}
.case .imglist li h2 {
  padding: 5px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}