body,html{
  background: #ffffff;
  max-width: 750px;
  margin: 0px auto;
}
*{
  padding: 0px;
  margin: 0px;
}
.text-center {
  text-align: center;
}

.container{
  margin: 8px;
}

.gonggao {
  padding: 15px 20px;
}

.lb2 {
  /*background-color: #2888BD;*/
  font-size: 12px;
  line-height: 20px;
  margin: 5px 0;
  border-radius: 5px;
  padding: 5px 16px;
}

.gg_cont {
  line-height: 30px;
  font-size: 13px;
  color: #777;
  text-align: left;
}

.gg_cont {
  line-height: 30px;
  font-size: 16px;
  color: #fff;
}



a {
  text-decoration: none;
}

.btn {
  display: block;
  padding: 6px 16px;
  margin-bottom: 0;
  font-size: 14px;
  font-weight: normal;
  line-height: 1.42857143;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  -ms-touch-action: manipulation;
  touch-action: manipulation;
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  background-image: none;
  border: 0px solid transparent;
  border-radius: 1px;
}

.btn-primary {
  color: #fff !important;
  background: #2888BD;
  margin: 10px 0;
}
.btn-lg, .btn-group-lg>.btn {
  padding: 10px 25px;
  font-size: 18px;
  line-height: 1.3333333;
  border-radius: 20px;
}

img {
  vertical-align: top;
  border: none;
}

img {
  max-width: 100%;
}
img {
  max-width: 100%;
  height: auto;
}
.box8 {
  border-radius: 10px 10px 10px 10px;
  border: 0px solid #000;
  width: auto;
  height: auto;
  margin: 0 auto;
}


#weixin-tip-box {
  display: none;
  position: fixed;
  right: 0;
  top: 4px;
  align-items: center;
}

.weixin-tip {
  z-index: 500;
  width: 100%;
  margin-top: -1rem;
}

.triangle_border_up {
  width: 400px;
  height: 1800px;
  margin-top: -1rem;
  z-index: 500;
}

@media only screen and (min-width: 1200px) {
  .weixin-tip {
    z-index: 500;
    width: 1920px;
    height: 3200px;
    margin-top: -1rem;
  }

  .triangle_border_up {
    width: 1920px;
    height: 1800px;
    margin-top: -1rem;
    z-index: 500;
  }
}