.row {
  margin: auto;
}
.intro .main-slider {
  height: 330px;
  background: url('./3.jpg') center top no-repeat;
  background-size: cover;
}
.m-channel {
  padding-top: 50px;
  padding-bottom: 60px;
}
.m-channel .u-title {
  margin: 0;
  color: #333;
  font-size: 32px;
  text-align: center;
  font-weight: 600;
}
.m-channel .u-paragraph {
  margin-top: 28px;
  margin-bottom: 56px;
  font-size: 16px;
  color: #333;
  text-align: center;
}
.m-channel .col-xs-4 {
  text-align: center;
}
.m-channel .col-xs-4 .u-content {
  display: inline-block;
  padding: 50px 13px 0 13px;
  width: 250px;
  height: 340px;
  background-color: #F7F7F7;
  transition: .3s ease;
}
.m-channel .col-xs-4 .u-content .fa {
  transition: .3s ease;
  font-size: 42px;
}
.m-channel .col-xs-4 .u-content .u-sub-title {
  font-size: 16px;
  margin-top: 42px;
  margin-bottom: 18px;
}
.m-channel .col-xs-4 .u-content .u-sub-paragraph {
  text-align: left;
  font-size: 14px;
  color: #999;
}
.m-channel .col-xs-4 .u-content:hover {
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.2);
}
.m-channel .col-xs-4 .u-content:hover .fa {
  color: #ff8724;
}
.content {
  padding: 24px 0;
}
.content .row .col-xs-6 {
  text-align: center;
}
.content .row .col-xs-6 .con {
  display: flex;
  height: 350px;
  justify-content: center;
  align-items: center;
}
.content .row .col-xs-6 .con .content_info {
  text-align: left;
}
.content .row .col-xs-6 .con .content_info li {
  font-size: 14px;
}
.content .row .col-xs-6 .con .content_info li:first-of-type {
  font-size: 32px;
  padding-bottom: 38px;
}
.content .content_img {
  display: inline-block;
  height: 350px;
  width: 350px;
  background: url('./1.png') center center no-repeat;
  background-size: contain;
}
.content:nth-of-type(2) .content_img {
  background-image: url('./2.png');
}
.content:nth-of-type(3) .content_img {
  background-image: url('./3.png');
}
.content:nth-of-type(4) .content_img {
  background-image: url('./4.png');
}
.content:nth-of-type(5) .content_img {
  background-image: url('./5.png');
}
.content:nth-of-type(odd) {
  background-color: #f7f7f7;
}
.m-collaborate {
  padding-top: 70px;
}
.m-collaborate .u-title {
  margin: 0;
  font-size: 32px;
  font-weight: 600;
  color: #333;
  text-align: center;
}
.m-collaborate .row {
  padding: 0 30px;
  display: flex;
  justify-content: space-between;
  margin-top: 86px;
}
.m-collaborate .row .col-xs-2 {
  min-width: 188px;
  text-align: center;
}
.m-collaborate .row .col-xs-2 .u-content {
  display: inline-block;
  padding: 20px 18px 0 18px;
  width: 180px;
  height: 234px;
  background-color: #f7f7f7;
}
.m-collaborate .row .col-xs-2 .u-content .fa {
  font-size: 42px;
  color: #ff8724;
}
.m-collaborate .row .col-xs-2 .u-content .u-sub-title {
  margin-top: 20px;
  margin-bottom: 20px;
  font-size: 16px;
  font-weight: 600;
  color: #333;
}
.m-collaborate .row .col-xs-2 .u-content .u-sub-paragraph {
  font-style: 14px;
  color: #333;
  text-align: left;
}
.m-collaborate .img-content {
  margin-top: 52px;
  text-align: center;
}
.m-collaborate .img-content img {
  height: 180px;
}
.m-joinus {
  margin-top: 70px;
  margin-bottom: 50px;
  height: 700px;
  background: url('./bg.jpg') center center no-repeat;
}
.m-joinus .u-title {
  color: #fff;
  font-size: 32px;
  text-align: center;
  padding-top: 50px;
}
.m-joinus .container {
  padding: 50px 0;
  display: flex;
  justify-content: center;
  align-items: center;
}
.m-joinus .container .logo-content {
  width: 920px;
}
.m-joinus .container .logo-content .u-block {
  display: inline-block;
  width: 150px;
  height: 150px;
  background-color: rgba(255, 255, 255, 0.2);
}
.m-joinus .container .logo-content .u-block.u-logo-1 {
  background: url('./1.png') center center no-repeat;
  background-color: #fff;
  background-size: 80%;
}
.m-joinus .container .logo-content .u-block.u-logo-6 {
  background: url('./2.png') center center no-repeat;
  background-color: #fff;
  background-size: 80%;
}
.m-joinus .container .logo-content .u-block.u-logo-13 {
  background: url('./3.png') center center no-repeat;
  background-color: #fff;
  background-size: 80%;
}
.m-joinus .container .logo-content .u-block.u-logo-18 {
  background: url('./4.png') center center no-repeat;
  background-color: #fff;
  background-size: 50%;
}
.m-joinus .container .logo-content .u-block.u-logo-4 {
  background: url('./5.png') center center no-repeat;
  background-color: #fff;
  background-size: 80%;
}
.m-joinus .container .logo-content .u-block.u-logo-16 {
  background: url('./6.png') center center no-repeat;
  background-color: #fff;
  background-size: 80%;
}
.m-joinus .container .logo-content .u-block.u-logo-8 {
  background: url('./7.png') center center no-repeat;
  background-color: #fff;
  background-size: 80%;
}
.m-joinus .container .logo-content .u-block.u-logo-9 {
  background: url('./8.png') center center no-repeat;
  background-color: #fff;
  background-size: 40%;
}
.m-joinus .container .logo-content .u-block.u-logo-11 {
  background: url('./9.png') center center no-repeat;
  background-color: #fff;
  background-size: 70%;
}