#lbox_nav {
  width: 250px;
  height: 500px;
  background: #31353d;
  padding: 30px 0 0 27px;
  border-radius: 10px;
  box-sizing: border-box;
  font-size: 15px;
  position: absolute;
  left: 0;
  z-index: 99;
}
#lbox_nav .icon {
  margin-bottom: 20px;
}
#lbox_nav .lbox_ul li {
  height: 40px;
  line-height: 40px;
  position: relative;
  cursor: pointer;
  margin-bottom: 20px;
}
#lbox_nav .lbox_ul li.select a {
  color: #ea3838;
}
#lbox_nav .lbox_ul li a {
  color: #8498a9;
  display: inline-block;
}
#lbox_nav .lbox_ul li:hover a {
  color: #ea3838;
  text-decoration: none;
}
#lbox_nav .lbox_ul li b {
  height: 17px;
  line-height: 17px;
  background: #b0bfc6;
  color: #fff;
  border-radius: 10px;
  padding: 0px 6px;
  margin-left: 4px;
  font-weight: 400;
  font-size: 13px;
  display: inline-block;
}

#lbox_nav form {
  width: 200px;
  height: 35px;
  border-radius: 5px;
  border: 1px solid #efefef;
  margin: 60px 0 0 20px;
  box-shadow: 2px 2px 10px #ddd;
}
#lbox_nav form input {
  height: 35px;
  box-sizing: border-box;
  font-size: 14px;
  border: none;
  outline: none;
  padding-left: 20px;
  color: #888;
  width: 160px;
}
#lbox_nav form button {
  cursor: pointer;
  background: url(../images/fdj.png) no-repeat 0px 4px;
  width: 35px;
  height: 35px;
  float: right;
  border: none;
}
#j_content {
  width: 1200px;
  overflow: hidden;
  margin: 0 auto;
  padding: 0px 0 70px;
  display: flex;
  justify-content: flex-end;
  position: relative;
  margin-top: 60px;
}

#rbox {
  box-sizing: border-box;
  width: 920px;
  background: #fff;
  border-radius: 10px;
  margin-left: 30px;
  padding: 30px 20px 30px 45px;
}
#rbox h3 {
  font-size: 24px;
  color: #000;
  padding-bottom: 20px;
}

#rbox .dppro .video li {
  width: 200px;
  box-sizing: border-box;
  float: left;
  margin: 0 15px 30px 0;
  list-style: none;
  transition: 0.3s;
}
#rbox .dppro .video li:nth-child(4n + 4) {
  margin-right: 0px;
}
#rbox .dppro .video li:hover .tit {
  color: #ea3838;
}
#rbox .dppro .video li .sm_img {
  display: block;
  width: 200px;
  height: 116px;
  overflow: hidden;
  border-radius: 10px;
}
#rbox .dppro .video li .sm_img img {
  display: block;
  width: 100%;
  height: 100%;
  transition: 0.3s;
}
#rbox .dppro .video li .bg_img {
  display: block;
  width: 200px;
  height: 265px;
  overflow: hidden;
  border-radius: 10px;
}
#rbox .dppro .video li .bg_img img {
  display: block;
  width: 100%;
  height: 100%;
  transition: 0.3s;
}
#rbox .dppro .video li .tit {
  margin-top: 20px;
  color: #000;
  font-size: 16px;
  text-align: center;
  height: 20px;
  line-height: 20px;
  overflow: hidden;
}
#rbox .dppro .video li .ms {
  margin-top: 8px;
  color: #999999;
  text-align: center;
  overflow: hidden;
  height: 16px;
  line-height: 16px;
}

#rbox .dppro .problem li {
  margin-left: 15px;
  list-style: decimal;
  height: 50px;
  line-height: 50px;
}
#rbox .dppro .problem li a {
  height: 40px;
  line-height: 40px;
}
#rbox .dppro .problem li:hover {
  color: #ea3838;
}
#rbox .dppro .problem li:hover a {
  color: #ea3838;
  text-decoration: none;
}
#rbox .dppro .problem li img {
  margin: -15px 0 0 5px;
  display: inline-block;
}

#rbox .channel_box {
  width: 1200px;
}
#rbox .channel_box .tip_ul li {
  color: #888;
  padding-top: 5px;
  font-size: 14px;
}
#rbox .channel_box .chan_title {
  color: #474647;
  font-size: 14px;
}
#rbox .channel_box .tabs {
  width: 1090px;
  border-bottom: 1px solid #888;
  height: 40px;
  margin-top: 75px;
}
#rbox .channel_box .tabs a {
  float: left;
  font-size: 18px;
  color: #444;
  font-weight: bold;
  height: 36px;
  line-height: 36px;
  padding: 0 20px;
}
#rbox .channel_box .tabs a.active {
  border-bottom: 4px #888 solid;
}
#rbox .channel_box .tabs a:hover {
  text-decoration: none;
  border-bottom: 4px #888 solid;
}
#rbox .list-inner {
  overflow: hidden;
}
#rbox .list-inner li {
  width: 210px;
  text-align: center;
  border: 1px solid #ddd;
  float: left;
  margin: 30px 30px 0px 0px;
  height: 120px;
  box-sizing: border-box;
  background: #fff;
  transition: 0.5s;
  position: relative;
  top: 0px;
  box-shadow: 0px 0px 0px #ddd;
}

#rbox .list-inner li:hover {
  top: -5px;
  box-shadow: 2px 5px 5px #ddd;
}
#rbox .list-inner li .pic {
  padding-bottom: 15px;
  padding-top: 22px;
  height: 50px;
  border-bottom: 1px dotted #ddd;
}
#rbox .list-inner li .word {
  background: #f7f7f7;
  height: 30px;
  line-height: 30px;
}
#rbox .list-inner li .word span {
  float: left;
  margin-left: 10px;
  color: #444;
  font-weight: bold;
  text-align: left;
  width: 90px;
  font-size: 14px;
}
#rbox .list-inner li .word img {
  position: relative;
  top: 0px;
  cursor: pointer;
  left: 20px;
}

@media screen and (min-width: 1440px) {
  #j_content {
    width: 1440px;
  }
  #rbox {
    width: 1160px;
  }
  #rbox .dppro .video li {
    width: 250px;
    margin: 0 25px 30px 0;
  }
  #rbox .dppro .video li .sm_img {
    width: 250px;
    height: 145px;
  }
  #rbox .dppro .video li .bg_img {
    width: 250px;
    height: 330px;
  }
}

/*教程*/
.iconfont-symbol {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}
.wangpu {
  margin: 20px auto 0;
  width: 1200px;
  height: 82px;
  background: url(https://img.alicdn.com/imgextra/i3/800803731/O1CN01FkQPqB1dQqOTESXVT_!!800803731.png)
    no-repeat;
  position: relative;
}

.wangpu .btn {
  width: 130px;
  height: 30px;
  background: #fec400;
  line-height: 30px;
  text-align: center;
  border-radius: 30px;
  color: #4942f2;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  position: absolute;
  left: 555px;
  top: 26px;
  animation: wangpuBtn 0.6s linear infinite;
}

@keyframes wangpuBtn {
  0% {
    transform: translateX(0px);
  }

  50% {
    transform: translateX(-5px);
  }

  100% {
    transform: translateX(0px);
  }
}
.common {
  margin: 20px auto;
  border-radius: 10px;
  width: 1120px;
  margin-bottom: 40px;
  padding: 30px 40px;
  background: #ffffff;
  overflow: hidden;
}
.contenttitle {
  margin-bottom: 10px;
  float: left;
}
.contenttitle h1 {
  font-size: 26px;
  margin-bottom: 10px;
  color: #000000;
  font-weight: 500;
}
.contentview {
  float: right;
  text-align: right;
  line-height: 30px;
  color: #999;
}
.contentview span {
  font-size: 20px;
  margin-left: 5px;
  color: #ea3838;
  font-weight: 500;
}
.contenttxt {
  padding-top: 10px;
  border-top: 1px solid #ececec;
  float: left;
  width: 1140px;
  line-height: 25px;
  font-size: 14px;
  word-wrap: break-word;
}
.contenttxt h3 {
  float: left;
  width: 1140px;
  line-height: 30px;
  margin: 6px 0;
  color: #eb5753;
}
.contenttxt h2 {
  margin-top: 30px;
}