.main {
  padding-top: 50px;
  padding-bottom: 60px;
}

.prolist-box {
  padding: 70px 0;
}

.prolist-box h2 {
  font-size: 48px;
  color: #000;
  line-height: 1.2;
  font-weight: 700;
  text-align: center;
}

.prolist-nav {
  margin-top: 45px;
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
}

.prolist-nav li {
  font-size: 24px;
  color: #7c7c7c;
  font-weight: 300;
}

.prolist-nav li+li {
  margin-left: 90px;
}

.prolist-nav li a {
  color: #7c7c7c;
}

.prolist-nav li.active a {
  color: #fff;
  background: #000;
    padding: 10px;
}

.videolist {
  margin-top: 20px;
}
.videolist .cl {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.videolist ul li {
  width: 33.333%;
  padding: 0 10px;
  margin-bottom: 24px;
}

.videolist ul li .v {
  position: relative;
  width: 100%;
  display: block;
  overflow: hidden;
}

.videolist ul li .v img {
  width: 100%;
  display: block;
  transition: all 0.3s ease 0s;
  -webkit-transition: all 0.3s ease 0s;
}

.videolist ul li .v .play {
  position: absolute;
  left: calc(50% - 25px);
  top: calc(50% - 25px);
  width: 50px;
  height: 50px;
  display: block;
}

.videolist ul li .t {
  padding: 15px 10px;
  background: #f3f4f7;
  box-sizing: border-box;
  position: relative;
  min-height: 82px;
}

.videolist ul li .t h5 {
  font-size: 17px;
  color: #333;
  text-align: center;
  display: -webkit-box;
  overflow: hidden;
  white-space: normal !important;
  text-overflow: ellipsis;
  word-wrap: break-word;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.videolist ul li:hover .v::after {
  background-color: rgba(0, 0, 0, 0.5);
}

.videolist ul li:hover img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
}


  .prolist-nav {
    row-gap: 18px;
    align-items: center;
  }

  .prolist-nav-item {
    position: relative;
    font-size: 24px;
    color: #7c7c7c;
    font-weight: 300;
    display: flex;
    align-items: center;
  }

  .prolist-nav-item + .prolist-nav-item {
    margin-left: 90px;
  }

  .prolist-nav-item > a,
  .prolist-nav-toggle {
    display: inline-flex;
    align-items: center;
    color: #7c7c7c;
    transition: color 0.3s ease;
  }

  .prolist-nav-item > a {
    position: relative;
    z-index: 2;
  }

  .prolist-nav-toggle {
    margin-left: 8px;
    padding: 0;
    border: 0;
    background: transparent;
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
  }

  .prolist-nav-item.active > a,
  .prolist-nav-item.active > .prolist-nav-toggle,
  .prolist-nav-item:hover > a,
  .prolist-nav-item:hover > .prolist-nav-toggle {
    color: var(--color-primary);
  }

  .prolist-subnav {
    position: absolute;
    top: calc(100% + 16px);
    left: 50%;
    z-index: 20;
    min-width: 220px;
    margin-top: 0;
    padding: 0;
    list-style: none;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
    transform: translate(-50%, 12px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.28s ease;
  }

  .prolist-subnav li {
    font-size: 16px;
    font-weight: 400;
    margin-left: 0 !important;
    border-bottom: 1px solid #ececec;
  }

  .prolist-subnav li a {
    display: block;
    padding: 12px 18px;
    color: #666;
    line-height: 1.5;
    white-space: nowrap;
  }

  .prolist-subnav li:last-child {
    border-bottom: 0;
  }


  .prolist-subnav li > a {
    background: #fff!important;
    color: #000!important;
  }

  .prolist-subnav li.active a,
  .prolist-subnav li a:hover {
    color: var(--color-primary)!important;
    text-decoration: none;
  }

  .prolist-nav-item:hover .prolist-subnav,
  .prolist-nav-item.is-open .prolist-subnav {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
  }

  @media screen and (max-width: 768px) {
    .prolist-nav {
      row-gap: 12px;
      justify-content: flex-start;
    }

    .prolist-nav-item {
      width: 100%;
      margin-left: 0 !important;
      font-size: 18px;
      border: 1px solid #ececec;
      border-radius: 10px;
      overflow: hidden;
    }

    .prolist-nav-item > a,
    .prolist-nav-toggle {
      color: #333;
    }

    .prolist-nav-item > a {
      display: block;
      padding: 12px 16px;
      width: calc(100% - 48px);
    }

    .prolist-nav-toggle {
      position: absolute;
      top: 0;
      right: 0;
      width: 48px;
      height: 48px;
      justify-content: center;
      margin-left: 0;
      transition: transform 0.28s ease;
    }

    .prolist-nav-item.is-open > .prolist-nav-toggle,
    .prolist-nav-item.active > .prolist-nav-toggle {
      transform: rotate(180deg);
    }

    .prolist-subnav {
      position: static;
      min-width: 0;
      border-radius: 0;
      box-shadow: none;
      border-top: 1px solid #ececec;
      transform: none;
      max-height: 0;
      opacity: 1;
      visibility: visible;
      overflow: hidden;
      transition: max-height 0.28s ease;
    }

    .prolist-nav-item:hover .prolist-subnav {
      transform: none;
    }

    .prolist-nav-item.is-open .prolist-subnav,
    .prolist-nav-item.active .prolist-subnav {
      max-height: 320px;
    }

    .prolist-subnav li {
      font-size: 14px;
    }

    .prolist-subnav li a {
      padding: 10px 16px 10px 24px;
      white-space: normal;
    }
  }


 


@media screen and (max-width: 1441px) {
  .prolist-box h2 {
    font-size: 44px;
  }

  .prolist-nav li {
    font-size: 22px;
  }

  .prolist-nav li+li {
    margin-left: 70px;
  }
}

@media screen and (max-width: 1367px) {
  .prolist-box h2 {
    font-size: 40px;
  }
}

@media screen and (max-width: 1281px) {
  .prolist-box h2 {
    font-size: 36px;
  }
}

@media screen and (max-width: 992px) {
  .prolist-box h2 {
    font-size: 32px;
  }
}

@media screen and (max-width: 768px) {
  .main {
    padding-top: 25px;
    padding-bottom: 30px;
  }

  .prolist-box h2 {
    font-size: 28px;
  }

  .prolist-box {
    padding: 30px 0;
  }

  .prolist-nav {
    margin-top: 25px;
  }

  .prolist-nav li {
    font-size: 18px;
  }

  .prolist-nav li+li {
    margin-left: 20px;
  }

  .main {
    padding-top: 25px;
    padding-bottom: 30px;
  }

  .videolist ul li {
    float: left;
    width: 48%;
    margin: 0 0 25px 2%;
  }
}

@media screen and (max-width: 576px) {
  .prolist-box h2 {
    font-size: 24px;
  }

  .videolist ul li {
    float: left;
    width: 48%;
    margin: 0 0 25px 2%;
  }

  .videolist ul li .v::after {
    transform: scale(0.5);
    background-color: rgb(0, 0, 0, 0);
  }
}

@media screen and (max-width: 480px) {
  .prolist-box h2 {
    font-size: 22px;
  }

  .videolist ul li {
    float: left;
    width: 48%;
    margin: 0 0 25px 2%;
  }

  .videolist ul li .v::after {
    transform: scale(0.5);
    background-color: rgb(0, 0, 0, 0);
  }
}

@media screen and (max-width: 400px) {
  .videolist ul {
    margin: 0;
  }

  .videolist ul li {
    float: none;
    width: 100%;
    margin: 0 0 15px;
  }

  .videolist ul li .v::after {
    transform: scale(0.5);
    background-color: rgb(0, 0, 0, 0);
  }
}