@charset "UTF-8";
/* 产品分类 */
.top-nav {
  color: #333333;
  --active-color: #333333;
  box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.1);
}
.top-nav .nav-container .left-box .logo img:last-child {
  opacity: 1;
}
.top-nav .nav-container .left-box .logo img:first-child {
  opacity: 0;
}
.top-nav .nav-container .center-box .nav .nav-item {
  color: #333333;
}

.main-container {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  box-sizing: border-box;
  padding: 100px 40px 0;
  background-color: #ffffff;
}
.main-container .center-flex {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  min-height: calc(100vh - 100px);
  width: 1540px;
}
.main-container .center-flex .left-class {
  min-height: calc(100vh - 100px);
  box-sizing: border-box;
  width: 27%;
  min-width: 230px;
  height: 100%;
  padding-right: 25px;
  border-right: solid 1px #ececec;
}
.main-container .center-flex .left-class .title {
  font-size: 30px;
  margin-top: 50px;
  height: 60px;
}
.main-container .center-flex .left-class .title strong {
  font-weight: bold;
  margin-right: 15px;
}
.main-container .center-flex .left-class .class-list {
  margin-top: 20px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.main-container .center-flex .left-class .class-list .class-item {
  padding-bottom: 20px;
  border-bottom: solid 1px #ececec;
}
.main-container .center-flex .left-class .class-list .class-item:last-child {
  border-bottom: unset;
}
.main-container .center-flex .left-class .class-list .class-item .class-title {
  font-size: 17px;
  line-height: 55px;
  color: #666666;
}
.main-container .center-flex .left-class .class-list .class-item .class-link {
  display: block;
  width: 100%;
  font-size: 15px;
  padding-left: 20px;
  box-sizing: border-box;
  color: #999999;
  line-height: 30px;
  position: relative;
}
.main-container .center-flex .left-class .class-list .class-item .class-link::after {
  content: "";
  display: block;
  width: 4px;
  height: 50%;
  background-color: #dddddd;
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transition: 300ms;
}
.main-container .center-flex .left-class .class-list .class-item .class-link:hover {
  font-weight: bold;
  color: var(--color-primary);
}
.main-container .center-flex .left-class .class-list .class-item .class-link:hover::after {
  height: 100%;
  opacity: 1;
}
.main-container .center-flex .right-recommended-list {
  box-sizing: border-box;
  min-height: calc(100vh - 100px);
  width: 73%;
  height: 100%;
  padding-top: 75px;
  padding-right: 84px;
  margin-left: -1px;
  border-left: solid 1px #ececec;
}
.main-container .center-flex .right-recommended-list .title-box {
  display: none;
}
.main-container .center-flex .right-recommended-list .container .recommend-item {
  float: left;
  width: 50%;
  height: auto;
  box-sizing: border-box;
  padding-bottom: 6.7%;
  padding-left: 9.6%;
}
.main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link {
  display: block;
  position: relative;
  overflow: hidden;
}
.main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link:hover .background {
  transform: scale(1.2);
}
.main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link .background {
  display: block;
  transition: 500ms;
  aspect-ratio: 420/550;
  width: 100%;
}
.main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link .bottom-class-name {
  position: absolute;
  width: 100%;
  bottom: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
  padding: 0 20px;
  color: #ffffff;
  height: 96px;
}
.main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link .bottom-class-name span {
  font-size: 28px;
}
.main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link .bottom-class-name .iconfont {
  font-size: 30px;
}

@media screen and (max-width: 1100px) {
  .top-nav {
    height: 70px;
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(30px);
    box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.1);
    color: #333333;
    --active-color: #333333;
  }
  .top-nav .nav-item {
    color: #333333 !important;
  }
  .top-nav .nav-container .left-box .logo img:last-child {
    opacity: 1;
  }
  .top-nav .nav-container .left-box .logo img:first-child {
    opacity: 0;
  }
  .main-container {
    padding: 80px 4% 0;
  }
  .main-container .center-flex .left-class {
    border-right: unset;
    transition: 500ms;
    transform: translateX(-105%);
    box-shadow: unset;
    position: fixed;
    background-color: unset;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    width: 100%;
    padding: unset;
  }
  .main-container .center-flex .left-class.active {
    transform: translateX(0);
  }
  .main-container .center-flex .left-class.active .class-list {
    box-shadow: 4px 0px 15px 0px rgba(0, 0, 0, 0.1);
  }
  .main-container .center-flex .left-class .title {
    display: none;
  }
  .main-container .center-flex .left-class .class-list {
    height: 100vh;
    overflow: auto;
    background-color: #f5f5f5;
    padding: 70px 20px 0;
    box-sizing: border-box;
    width: 75%;
  }
  .main-container .center-flex .left-class .class-list .class-item {
    padding-bottom: 10px;
  }
  .main-container .center-flex .left-class .class-list .class-item .class-title {
    height: 48px;
    font-weight: bold;
    color: #333333;
    font-size: 16px;
  }
  .main-container .center-flex .left-class .class-list .class-item .class-link {
    font-size: 16px;
    padding-left: 0;
  }
  .main-container .center-flex .right-recommended-list {
    border: unset;
    padding: unset;
    width: 100%;
  }
  .main-container .center-flex .right-recommended-list .title-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    margin-top: 10px;
  }
  .main-container .center-flex .right-recommended-list .title-box .title {
    font-size: 22px;
  }
  .main-container .center-flex .right-recommended-list .title-box .filter {
    cursor: pointer;
    font-size: 14px;
    color: #444444;
  }
  .main-container .center-flex .right-recommended-list .container .recommend-item {
    width: 100%;
    margin: 0;
    padding: unset;
    margin-bottom: 20px;
  }
  .main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link .background {
    transform: scale(1) !important;
  }
  .main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link .bottom-class-name {
    padding: 0;
    position: unset;
    color: #333333;
    margin-top: 10px;
    width: 100%;
  }
  .main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link .bottom-class-name span {
    font-size: 18px;
    line-height: 30px;
    width: calc(100vw - 80px);
  }
  .main-container .center-flex .right-recommended-list .container .recommend-item .recommend-link .bottom-class-name .iconfont {
    font-size: 16px;
  }
}