/* header */
.m-header {
  display: none;
}

#head {
  width: 100%;
}

.header {
  display: flex;
  justify-content: space-around;
  height: 100px;
}

.header .logo-box a,
.header .contact-box {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.header .logo-box,
.header .contact-box {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.header .logo-box .img-box,
.header .contact-box .img-box {
  padding: 0 15px;
  width: 50px;
}

.header .logo-box .img-box img,
.header .contact-box .img-box img {
  width: 100%;
}

.header .logo-box .text-box {
  border-left: 1.5px solid #333;
  padding: 0 15px;
}

.header .logo-box .text-box .title {
  color: rgb(64, 101, 128);
  font-weight: bold;
  font-size: 20px;
}

.header .logo-box .text-box .desc {
  font-size: 16px;
}

.header .contact-box .text-box {
  font-size: 18px;
}

.header .contact-box .text-box div:last-child {
  color: rgb(64, 101, 128);
  font-weight: bold;
}


@media (max-width: 850px) {

  #head {
    width: 100%;
  }

  #menu {
    display: none;
  }

  .header {
    display: none;
  }

  .m-header {
    display: block;
    height: 55px;
    padding: 15px;
    position: relative;
    box-sizing: border-box;
  }

  .m-header .logo-box {
    position: absolute;
    left: 40px;
    top: 50%;
    transform: translate(0, -50%);
  }

  .m-header .logo-box a {
    display: inline-block;
  }

  .m-header .img-box {
    display: inline-block;
    width: 30px;
    height: 30px;
    vertical-align: middle;
  }

  .m-header .img-box img {
    width: 100%;
    height: 100%;
  }

  .m-header .text-box {
    display: inline-block;
    font-size: 20px;
    vertical-align: middle;
  }

  .m-header .btn-open,
  .m-header .btn-close {
    width: 50px;
    height: 30px;
    position: absolute;
    top: 50%;
    right: 0;
    transform: translate(0, -50%);
  }

  .m-header .btn-close {
    right: 10px;
  }

  .m-header .btn-open .line,
  .m-header .btn-close .line {
    width: 30px;
    height: 2px;
    display: block;
    background: #002cc0;
    left: 10px;
    margin-bottom: 8px;

    transition: all ease 0.35s;
  }

  .m-header .btn-close .line {
    margin-bottom: 0;
    top: 10px;
    position: absolute;
  }

  .m-header .btn-close .line:nth-child(1) {
    transform: rotate(45deg);
  }

  .m-header .btn-close .line:nth-child(2) {
    transform: rotate(-45deg);
  }


  .m-header .nav-box {
    position: fixed;
    z-index: 9;
    background: #fff;
    border-top: 1px solid #ccc;
    width: 100%;
    font-size: 17px;
    top: -430px;
    left: 0;
    overflow: auto;
    overflow-x: hidden;
    transition: top ease 0.35s;
  }

  .m-header .nav-box li {
    border-bottom: 1px solid #ddd;
    margin: 0 20px;
    position: relative;
    line-height: 40px;
  }
}