.foot-box {
  display: none;
}
.tutorials {
  width: 100%;
}
.tutorials .banner .banner-desc {
  border-bottom: 4px solid #a0d7b1;
  box-shadow: 7px 0 21px rgba(0, 0, 0, 0.08);
  margin-top: 30px;
  height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.tutorials .banner .banner-desc::before {
  content: url('../images/tutorials/shidao.svg');
  position: absolute;
  top: -35px;
  left: 40px;
  z-index: -1;
  width: 181px;
}
@media screen and (max-width: 768px) {
  .tutorials .banner .banner-desc::before {
    left: -40px;
  }
}
@media screen and (max-width: 600px) {
  .tutorials .banner .banner-desc::before {
    content: '';
    display: block;
    background: url('../images/tutorials/shidao.svg') no-repeat;
    background-size: 100%;
    top: -25px;
    width: 100px;
    height: 100px;
  }
}
.tutorials .banner .banner-desc::after {
  content: url('../images/tutorials/shu.svg');
  position: absolute;
  bottom: -45px;
  right: 40px;
  z-index: -1;
  width: 199px;
}
@media screen and (max-width: 768px) {
  .tutorials .banner .banner-desc::after {
    right: -40px;
  }
}
@media screen and (max-width: 600px) {
  .tutorials .banner .banner-desc::after {
    content: '';
    display: block;
    background: url('../images/tutorials/shu.svg') no-repeat;
    background-size: 100%;
    width: 100px;
    height: 100px;
    bottom: -35px;
  }
}
.tutorials .banner h1 {
  text-align: center;
  font-size: 32px;
}
@media screen and (max-width: 600px) {
  .tutorials .banner h1 {
    font-size: 26px;
  }
}
.tutorials .banner p {
  text-align: center;
  margin-bottom: 0px;
  font-size: 18px;
  margin-top: 24px;
}
@media screen and (max-width: 600px) {
  .tutorials .banner p {
    font-size: 16px;
  }
}
.tutorials .content {
  padding: 30px 0;
}
.tutorials .content .flex-content {
  display: flex;
  justify-content: space-between;
}
@media screen and (max-width: 768px) {
  .tutorials .content .flex-content {
    flex-wrap: wrap-reverse;
  }
}
.tutorials .content .left-content {
  flex: 0 0 67%;
}
@media screen and (max-width: 768px) {
  .tutorials .content .left-content {
    flex: 100%;
  }
}
.tutorials .content .left-content .Navigation ul {
  display: flex;
}
@media screen and (max-width: 600px) {
  .tutorials .content .left-content .Navigation ul {
    flex-wrap: wrap;
  }
}
.tutorials .content .left-content .Navigation ul.nav-tabs {
  border-bottom: none;
}
.tutorials .content .left-content .Navigation ul li {
  display: block;
  list-style: none;
  height: 40px;
  margin: 0 5px;
  line-height: 39px;
  border-radius: 3px;
  color: #666;
  transform: translateY(0px);
  transition: all 0.5s;
}
.tutorials .content .left-content .Navigation ul li.active {
  background: #51b177;
  color: #ffffff;
}
.tutorials .content .left-content .Navigation ul li.active a {
  background-color: unset;
  border: unset;
  color: #ffffff;
}
.tutorials .content .left-content .Navigation ul li a {
  background-color: unset;
  border: none;
  color: #666;
  margin-right: 0;
  border-radius: unset;
  padding: 10px;
}
.tutorials .content .left-content .Navigation ul li:hover {
  background: #51b177;
  box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.15);
  transform: translateY(-5px);
  color: #ffffff;
}
.tutorials .content .left-content .Navigation ul li:hover a {
  background: #51b177;
  color: #ffffff;
}
.tutorials .content .left-content .more {
  cursor: pointer;
  border: 1px solid #51b177;
  text-align: center;
  padding: 15px 0;
  color: #51b177;
  font-size: 18px;
  margin-top: 30px;
}
.tutorials .content .left-content .articles {
  margin-top: 30px;
  display: none;
}
.tutorials .content .left-content .articles.active {
  display: block;
}
.tutorials .content .left-content .articles .son {
  display: none;
  border-top: 1px solid #ccc;
  padding: 50px 15px;
  color: #666666;
  transform: translateY(0px);
  transition: all 0.5s;
  background: #ffffff;
}
.tutorials .content .left-content .articles .son.active {
  display: flex;
}
@media screen and (max-width: 600px) {
  .tutorials .content .left-content .articles .son.active {
    flex-wrap: wrap-reverse;
  }
}
.tutorials .content .left-content .articles .son:hover {
  border-top: none;
  text-decoration: none;
  transform: translateY(-20px);
  box-shadow: 2px 2px 12px rgba(0, 0, 0, 0.15);
}
.tutorials .content .left-content .articles .son .pic {
  margin-right: 30px;
  flex: 0 0 33%;
}
@media screen and (max-width: 600px) {
  .tutorials .content .left-content .articles .son .pic {
    flex: 100%;
    text-align: center;
    margin-top: 30px;
    margin-right: 0px;
  }
}
.tutorials .content .left-content .articles .son .desc a {
  font-size: 24px;
  font-weight: bold;
  display: block;
  margin-bottom: 10px;
  color: #51b177;
}
@media screen and (max-width: 600px) {
  .tutorials .content .left-content .articles .son .desc a {
    font-size: 20px;
  }
}
.tutorials .content .left-content .articles .son .desc a:hover {
  text-decoration: none;
}
.tutorials .content .left-content .articles .son .desc span {
  font-size: 14px;
  line-height: 26px;
}
.tutorials .content .left-content .articles .son .desc span a {
  font-size: 14px;
  line-height: 26px;
  font-weight: 400;
  color: #2B3844;
}
.tutorials .content .left-content .articles .son:nth-child(6n) {
  border-bottom: 1px solid #ccc;
}
.tutorials .content .left-content .articles .son .tag-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
}
@media screen and (max-width: 600px) {
  .tutorials .content .left-content .articles .son .tag-box {
    flex-wrap: wrap;
  }
}
.tutorials .content .left-content .articles .son .tag-box .tag span {
  cursor: pointer;
  display: inline-block;
  border: 1px solid #ccc;
  border-radius: 3px;
  padding: 0px 6px;
  background: #ffffff;
  font-size: 13px;
}
@media screen and (max-width: 600px) {
  .tutorials .content .left-content .articles .son .tag-box .tag span {
    font-size: 12px;
  }
}
.tutorials .content .left-content .articles .son .tag-box .tag span:hover {
  border-color: #51b177;
  color: #51b177;
  box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.15);
}
.tutorials .content .left-content .articles .son .tag-box .datetime {
  font-size: 16px;
  padding-left: 20px;
  position: relative;
}
.tutorials .content .left-content .articles .son .tag-box .datetime::before {
  content: url('../images/tutorials/shijian.svg');
  position: absolute;
  left: 0;
  top: 3px;
}
@media screen and (max-width: 600px) {
  .tutorials .content .left-content .articles .son .tag-box .datetime::before {
    top: 1px;
  }
}
@media screen and (max-width: 600px) {
  .tutorials .content .left-content .articles .son .tag-box .datetime {
    font-size: 14px;
  }
}
@media screen and (max-width: 600px) {
  .tutorials .content .left-content .articles .son .tag-box .datetime {
    display: block;
    flex: 100%;
    margin-top: 15px;
  }
}
.tutorials .content .right-content {
  flex: 0 0 25%;
  margin-bottom: 30px;
}
@media screen and (max-width: 768px) {
  .tutorials .content .right-content {
    flex: 100%;
    display: none;
  }
}
.tutorials .content .right-content .hot {
  margin-top: 5px;
}
.tutorials .content .right-content .hot ul li {
  list-style: none;
  padding: 12px 0;
  font-size: 14px;
  border-bottom: 1px solid #ccc;
  line-height: 18px;
  padding-left: 20px;
  position: relative;
  color: #666666;
  transform: translateX(0px);
  transition: all 0.5s;
}
.tutorials .content .right-content .hot ul li::before {
  content: url('../images/tutorials/jiantou.svg');
  position: absolute;
  left: 0;
}
@media screen and (max-width: 600px) {
  .tutorials .content .right-content .hot ul li {
    font-size: 14px;
    padding: 10px 0;
  }
}
.tutorials .content .right-content .hot ul li:hover {
  transform: translateX(5px);
}
.tutorials .content .right-content .hot ul li:hover a {
  color: #51b177;
  text-decoration: none;
}
.tutorials .content .right-content .title {
  font-size: 20px;
  padding: 10px 0;
  border-bottom: 2px solid #ccc;
}
.tutorials .content .right-content .title img {
  margin-right: 10px;
}
@media screen and (max-width: 600px) {
  .totop {
    right: 10px;
    z-index: 9999;
  }
  .totop:hover {
    right: 10px;
  }
}