@media screen and (min-width: 601px) {
  .main-contents {
    border-left: 1px solid #e4e4e4;
    padding-left: 20px !important;
  }
}
#left-contents {
  font-weight: bold;
  font-family: "Georgia", "FOT-セザンヌ Pro DB", YakuHanJP, Helvetica, Arial, FreeSans, san-serif;
}

#left-contents nav {
  height: auto;
  border-left: 1px solid #e4e4e4;
  border-right: 1px solid #e4e4e4
}

#left-contents li {
  width: 100%;
  float: none
}

#left-contents-box {
  border-bottom: 2px solid #00036c
}

#left-contents-title {
  border-radius: 5px 5px 0 0;
  border: 1px solid #e4e4e4;
  font-weight: 700;
  text-align: center;
  background: -webkit-gradient(linear, left top, left bottom, color-stop(1, #f9f9f9), color-stop(0, #fff));
  background: -webkit-linear-gradient(white, #f9f9f9);
  background: -moz-linear-gradient(white, #f9f9f9);
  background: -o-linear-gradient(white, #f9f9f9);
  background: -ms-linear-gradient(white, #f9f9f9);
  background: linear-gradient(white, #f9f9f9);
  margin: 0;
  height: 48px;
  line-height: 48px;
  font-size: 14px;
  color: #00036c
}

#left-contents li a {
  border-bottom: 1px solid #e4e4e4;
  cursor: pointer;
  display: block;
  color: #202020;
  padding: 0 15px;
  height: 50px;
  line-height: 50px;
}

#left-contents li a:hover {
  background: #e4e4e4
}

#left-contents li a.preview + ul {
  display: block
}

@media screen and (max-width: 600px) {
  #left-contents {
    display: none
  }
}

#left-contents .left-contents-list {
  background: none;
}
#left-contents .left-contents-list span {
  border-bottom: 1px solid #e4e4e4;
  cursor: pointer;
  display: block;
  color: #202020;
  padding: 0 15px;
  height: 50px;
  line-height: 50px;
  background: url("../../image/ico-down.png") no-repeat 90% center;
}
#left-contents .left-contents-list ul {
  display: none;
}
#left-contents .left-contents-list li {
  border-bottom: 1px solid #e4e4e4;
  background: #f9f9f9;
  height: 50px;
  line-height: 50px;
}
#left-contents .left-contents-list li:hover {
  background: #e4e4e4;
}
#left-contents .left-contents-list span.preview {
  background: url("../../image/ico-up.png") no-repeat 90% center;
}
#left-contents .left-contents-list span.preview + ul {
  display: block;
}