.sub-visual {
    width: 100%;
    height: 460px;
    position: relative;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
/*    .sub-visual::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 1);
    transition: all 0.7s ease-in-out;
  }
   */
/*    .sub-visual.active::after {
    width: 0;
  } */
  
   .sub-visual::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
  }
  
  .sub-visual.bg01 {
    background-image: url(../../images/sub/sub_visual02.jpg);
  }
  
  .sub-visual.bg02 {
    background-image: url(../../images/sub/sub_visual02.jpg);
  }
  
  .sub-visual.bg03 {
    background-image: url(../../images/sub/sub_visual03.jpg);
  }
  
  .sub-visual.bg04 {
    background-image: url(../../images/sub/sub_visual04.jpg);
  }
  
  
  .sub-visual .sub-visual-tit {
    width: 100%;
    color: #fff;
  }
  
  .sub-visual .sub-visual-tit .inner {
    max-width: 1400px;
    width: 90%;
    margin: 0 auto;
  }
  
  .sub-visual-tit h1 {
    font-size: 75px;
    font-weight: 600;
    overflow: hidden;
  }
  
  .sub-visual-tit p {
    font-size: 22px;
    color: rgba(255, 255, 255, 0.7);
    overflow: hidden;
  }
  
  @media screen and (max-width: 820px) {
     .sub-visual {
      height: 320px;
    }
  
    .sub-visual-tit h1 {
      font-size: 50px;
    }
  
    .sub-visual-tit p {
      font-size: 18px;
    }
  }
  
  @media screen and (max-width: 500px) {
    .sub-nav > div:not(.home) {
      width: 140px;
    }
  
    .sub-visual-tit h1 {
      font-size: 30px;
    }
  
    .sub-visual-tit p {
      font-size: 15px;
    }
  }
  
  /* 서브 네비게이션 */
  
   .sub-nav {
    background: #204e86;
    position: relative;
    z-index: 10;
    height: 80px;
    max-width: 1400px;
    margin: -40px auto 40px;
    color: #fff;
    display: flex;
    font-size: 16px;
  }
  
   .sub-nav .home {
    width: 80px;
    background: url(https://www.itm.co.kr/images/ic_home.png) no-repeat center
      center;
  }
  
   .sub-nav .home a {
    display: block;
    width: 100%;
    height: 100%;
  }
  
   .sub-nav > div:not(.home) {
    width: 224px;
    padding: 0 30px;
    position: relative;
    background: url(https://www.itm.co.kr/images/nav_arr.png) no-repeat center
      right 30px;
    cursor: pointer;
  }
  
   .sub-nav > div:not(.home):after {
    content: "";
    width: 1px;
    height: 20px;
    background: #fff;
    opacity: 0.2;
    position: absolute;
    left: 0;
    top: 50%;
    margin-top: -10px;
  }
  
   .sub-nav h2 {
    line-height: 80px;
    font-weight: 400;
    font-size: 20px;
  }
  
   .sub-nav ul {
    position: absolute;
    left: 0;
    width: 100%;
    background: #fff;
    box-shadow: 3px 3px 10px 3px rgba(0, 0, 0, 0.1);
    z-index: 1;
    display: none;
  }
  
   .sub-nav ul li a {
    display: flex;
    align-items: center;
    height: 60px;
    border-bottom: 1px solid #eee;
    padding: 0 30px;
    color: #444;
    transition: all 0.1s ease-in-out;
  }
  
   .sub-nav ul li a:hover {
    color: #204e86;
    font-weight: bold;
  }
  
  @media screen and (max-width: 820px) {
     .sub-nav {
      height: 60px;
      margin: -30px auto 30px;
    }
  
     .sub-nav > div:not(.home) {
      padding: 0 15px;
    }
  
     .sub-nav h2 {
      font-size: 15px;
      line-height: 60px;
    }
  
     .sub-nav ul li a {
      height: 40px;
      padding: 0 15px;
      font-size: 14px;
    }
  }