.center {
  width: 1100px;
  margin: 0 auto;
}
input::-webkit-input-placeholder {
  color: #fff;
}
input:-moz-placeholder {
  color: #fff;
}
input::-moz-placeholder {
  color: #fff;
}
input:-ms-input-placeholder {
  color: #fff;
}
body {
  background: #151515;
  min-width: 1100px;
}
.header {
  height: 100px;
  text-align: center;
  background: url('../images/header.jpg') no-repeat center;
  border-bottom: 1px solid #393939;
}
.header .center {
  position: relative;
  height: inherit;
}
.header img {
  width: 100%;
}
.header .div_logo {
  width: 270px;
  height: 67px;
  position: absolute;
  left: 0;
  top: 16.5px;
}
.header .header_title {
  position: absolute;
  display: block;
  left: 50%;
  top: 16px;
  width: 222px;
  height: 68px;
  margin-left: -111px;
}
.header .kefu {
  width: 280px;
  height: 52px;
  position: absolute;
  right: 0;
  top: 24px;
  background: url('../images/kefu.png') no-repeat center;
}
.content {
  background: #151515 url('../images/bg.jpg') no-repeat center top;
  position: relative;
  overflow: hidden;
}
.content .main {
  width: 1104px;
  height: 688px;
  background: url('../images/content.png') no-repeat center top;
  position: relative;
  margin: 0 auto 0;
  border-top: 55px solid transparent;
  overflow: hidden;
}
.content .line_list {
  overflow: hidden;
  width: 548px;
  height: 444px;
  position: absolute;
  left: 68px;
  top: 80px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}
.content .line_list .li_list {
  display: inline-block;
  width: 548px;
  height: 63px;
  background: url(../images/item.png) center no-repeat;
  margin-bottom: 12px;
}
.content .line_list .li_list a {
  display: inline-block;
  width: 100%;
  height: 100%;
  overflow: hidden;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  position: relative;
}
.content .line_list .li_list div {
  display: inline-block;
}
.content .line_list .li_list .website {
  display: inline-block;
  width: 376px;
  height: 50px;
  line-height: 50px;
  color: #d4d4d4;
  text-align: center;
  font-size: 22px;
  position: absolute;
  left: 7px;
  top: 7px;
}
.content .line_list .li_list .into {
  display: inline-block;
  width: 142px;
  height: 50px;
  line-height: 50px;
  text-align: center;
  font-size: 22px;
  color: #353229;
  background: url('../images/bg_btn.png') no-repeat center;
  background-size: 100% 100%;
  position: absolute;
  right: 7px;
  top: 7px;
}
.content .line_list .li_list:hover .website {
  color: #fff;
}
.content .line_list .li_list:hover .into {
  color: #fff;
  background: url('../images/bg_btn_hover.png') no-repeat center;
  background-size: 100% 100%;
}
.content .div_app {
  width: 332px;
  height: 237px;
  position: absolute;
  right: 42px;
  top: 80px;
  background: url('../images/app.png') no-repeat center;
}
.content .div_app .ewm {
  width: 129px;
  height: 129px;
  position: absolute;
  left: 8px;
  top: 102px;
}
.content .btns {
  display: block;
  width: 332px;
  height: 237px;
  padding-top: 30px;
  position: absolute;
  right: 42px;
  top: 376px;
}
.content .btns p {
  overflow: hidden;
  display: flex;
  justify-content: space-around;
}
.content .btns p:nth-child(1) {
  margin-bottom: 55px;
}
.content .btns p a {
  display: inline-block;
  /*width: 45%;*/
  width: 110px;
}
.content .btns p a img {
  display: block;
  width: 100%;
}
.content .div_mac {
  width: 346px;
  height: 296px;
  position: absolute;
  display: block;
  right: 42px;
  top: 378px;
  background: url('../images/mac.png') no-repeat center;
}
.content .prompt {
  color: #d4d4d4;
  font-size: 15px;
  line-height: 30px;
  width: 540px;
  position: absolute;
  top: 575px;
  left: 66px;
}
.content .prompt a:hover {
  color: #e90909 !important;
}
.content .retest {
  text-align: center;
  margin: 50px auto 150px;
  cursor: pointer;
}
.content .retest img {
  width: 300px;
  height: 89px;
}
.footer {
  text-align: center;
  color: #8b8b8b;
  line-height: 50px;
  font-size: 16px;
  margin-top: 80px;
}
@media screen and (max-width: 1500px) {
  .header {
    height: 80px;
    text-align: center;
    background: url('../images/header.jpg') no-repeat center;
    border-bottom: 1px solid #393939;
  }
  .header .center {
    position: relative;
    height: inherit;
    width: 880px;
  }
  .header img {
    width: 100%;
  }
  .header .div_logo {
    width: 216px;
    height: 53.6px;
    position: absolute;
    left: 0;
    top: 13.2px;
  }
  .header .header_title {
    position: absolute;
    display: block;
    left: 50%;
    top: 12.8px;
    width: 177.6px;
    height: 54.4px;
    margin-left: -88.8px;
  }
  .header .kefu {
    width: 224px;
    height: 41.6px;
    position: absolute;
    right: 0;
    top: 19.2px;
    background: url('../images/kefu.png') no-repeat center;
    background-size: 100% 100%;
  }
  .content {
    background: #151515 url('../images/bg.jpg') no-repeat center bottom;
    background-size: 100% 100%;
    position: relative;
    overflow: hidden;
  }
  .content .main {
    width: 883.2px;
    height: 550.4px;
    background: url('../images/content.png') no-repeat center;
    background-size: 100% 100%;
    position: relative;
    margin: 0 auto 0;
    border-top: 40px solid transparent;
    overflow: hidden;
  }
  .content .line_list {
    overflow: hidden;
    width: 438.4px;
    height: 355.2px;
    position: absolute;
    left: 54.4px;
    top: 66px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
  }
  .content .line_list .li_list {
    display: inline-block;
    width: 438.4px;
    height: 50.4px;
    background: url(../images/item.png) center no-repeat;
    background-size: 100% 100%;
    margin-bottom: 8px;
  }
  .content .line_list .li_list a {
    display: inline-block;
    width: 100%;
    height: 100%;
    overflow: hidden;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    position: relative;
  }
  .content .line_list .li_list div {
    display: inline-block;
  }
  .content .line_list .li_list .website {
    display: inline-block;
    width: 300.8px;
    height: 40px;
    line-height: 40px;
    color: #d4d4d4;
    text-align: center;
    font-size: 16px;
    position: absolute;
    left: 5.6px;
    top: 5.6px;
  }
  .content .line_list .li_list .into {
    display: inline-block;
    width: 113.6px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    font-size: 16px;
    color: #353229;
    position: absolute;
    top: 5.6px;
    right: 8px;
  }
  .content .line_list .li_list:hover .website {
    color: #fff;
  }
  .content .div_app {
    width: 265.6px;
    height: 189.6px;
    position: absolute;
    right: 33.6px;
    top: 64px;
    background: url('../images/app.png') no-repeat center;
    background-size: 100% 100%;
  }
  .content .div_app .ewm {
    width: 103.2px;
    height: 103.2px;
    position: absolute;
    left: 6.4px;
    top: 81.6px;
  } 
  .content .btns {
    display: block;
    width: 270px;
    height: 237px;
    position: absolute;
    right: 33px;
    top: 300px;
  }

  .content .div_mac {
    width: 276.8px;
    height: 236.8px;
    position: absolute;
    display: block;
    right: 33.6px;
    top: 300px;
    background: url('../images/mac.png') no-repeat center;
    background-size: 100% 100%;
  }
  .content .prompt {
    color: #d4d4d4;
    font-size: 12px;
    line-height: 22px;
    width: 432px;
    position: absolute;
    top: 460px;
    left: 52.8px;
  }
  .content .prompt a:hover {
    color: #e90909 !important;
  }
  .content .retest {
    text-align: center;
    margin: 50px auto 150px;
    cursor: pointer;
  }
  .content .retest img {
    width: 300px;
    height: 89px;
  }
  .footer {
    text-align: center;
    color: #8b8b8b;
    line-height: 40px;
    font-size: 12px;
    margin-top: 40px;
  }
}