* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  font-size: 14px;
  color: #111;
  background-color: #f2f2f2;
  font-family: 微软雅黑,Microsoft Yahei,LiHei Pro,Hiragino Sans,GBHelvetica Neue,Helvetica,Arial,PingFang SC,WenQuanYi Micro Hei,sans-serif;
}
body {
  background-image: url('../img/bg.png');
  background-size: 100% 100%;
  background-repeat: no-repeat;
}

li {
  list-style: none;
}

/* header */
.header {
  width: 100%;
  height: 90px;
  background-color: white;
  box-shadow: 0 0 8px rgba(0, 0, 0, .2);
}
.header .header-content {
  position: relative;
  width: 1300px;
  height: 90px;
  margin: 0 auto;
  overflow: hidden;
}
.header .header-content .logo {
  width: 210px;
  margin: 23px 0;
  float: left;
}
.header .header-content .logo .pic {
  width: 160px;
}
.header .header-content .title {
  position: absolute;
  top: 25px;
  left: 50%;
  width: 500px;
  height: 40px;
  font-size: 22px;
  line-height: 40px;
  font-weight: 600;
  text-align: center;
  margin-left: -250px;
}
.header .header-content .concat-us {
  height: 40px;
  font-size: 15px;
  margin: 25px 0;
  float: right;
}

.header .header-content .concat-us .icon {
  width: 20px;
  height: 20px;
  margin: 10px 5px;
  float: left;
}
.header .header-content .concat-us .desc {
  margin: 10px 0;
  float: left;
}


/* top */
.top {
  width: 790px;
  height: 65px;
  margin:40px auto 20px auto;
  border: 1px solid white;
  border-radius: 5px ;
  background-color: #fff ;
}

/* container */
.container {
  width: 790px;
  min-height: 493px;
  background-color: white;
  border: 1px solid #e1e1e1;
  border-radius:5px;
  margin: 0 auto;
}

/* footer */
.footer {
  width: 100%;
  height: 120px;
}
.footer .content {
  width: 820px;
  text-align: center;
  font-size: 15px;
  color: #fff;
  line-height: 30px;
  margin: 0 auto;
  padding: 30px 0;
}


/* step */
.step-group {
  width: 66%;
  margin: 0 auto;
  overflow: hidden;
}
.step {
  width: 24%;
  height: 25px;
  text-align: center;
  margin: 20px 0;
  float: left;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step.line {
  width: 10%;
  height: 2px;
  background-color: #d1d1d1;
  margin: 31px 2%;
}
.step .sort {
  width: 25px;
  height: 25px;
  color: #8c8c8c;
  line-height: 25px;
  text-align: center;
  font-size: 14px;
  border-radius: 50%;
  /* background-color: #d1d1d1; */
  margin-right: 5px;
  display: inline-block;
}
.step .desc {
  height: 25px;
  line-height: 25px;
  display: inline-block;
  color: #d8d8d8;
}

.step.active .sort {
  background-color: #fff;
}
.step.active .desc {
  color: black;
}
.step.active.line {
  /* background-color: #fff; */
}


.btn {
  width: 120px;
  height: 40px;
  text-align: center;
  line-height: 40px;
  font-size: 16px;
  color: #3e84e9;
  border-radius: 5px;
  background-color: white;
  border: 1px solid #3e84e9;
  display: inline-block;
  cursor: pointer;
}
.btn.primary {
  background-color: #3e84e9;
  color: white;
}


.base-top {
  width: 100%;
  height: 54px;
  line-height: 54px;
  /* background-color: #f7f7f7; */
  padding: 0 26px;
  /* border-bottom: 1px solid #e1e1e1; */
  font-weight: 600;
}
.base-top .title {
  /* color: #8c8c8c; */
  font-size: 16px;
}
.base-top .version {
  font-size: 13px;
  color: #8c8c8c;
  float: right;
}

.base-des {
  margin: 0 auto;
  line-height: 35px;
  width: 790px;
  background-color: #fff;
  padding: 0 40px;
  margin-bottom: 20px;
  color: #8c8c8c;
}

.base-a{
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  color: #3e84e9;
}
 
#cover{ 
  position:absolute;left:0px;top:0px;
  background:rgba(0, 0, 0, 0.4);
  width:100%;  /*宽度设置为100%，这样才能使隐藏背景层覆盖原页面*/
  height:100%;
  opacity:0.6;  /*非IE浏览器下设置透明度为60%*/
  display:none; 
  z-Index:99;
}