.down_list {
  margin-top: 30px;
}
.nav-left {
  width: 130px;
  float: left;
  padding-top: 87px;
  position: relative;
}
.nav-left li {
  width: 130px;
  height: 77px;
  background: #ccc;
  text-align: center;
  color: #fff;
  margin-bottom: 10px;
}
.nav-left li img {
  width: 77px;
  height: 77px;
}
.nav-left li a {
  display: block;
  height: 77px;
}
.nav-left li.cur {
  background: #00a3fe;
  position: absolute;
  top: 0;
}
.nav-left li span {
  color: #fff;
  font-size: 16px;
  line-height: 77px;
}
.nav-left li.list01 span,
.nav-left li.list02 span {
  line-height: 24px;
  font-size: 14px;
}
.nav-left li.list03 span {
  font-size: 13px;
  line-height: 17px;
}
.nav-left li i {
  display: block;
  width: 100%;
  height: 45px;
  background: url("../images/source_1.png") no-repeat center 8px;
}
.nav-left li.list02 i {
  background: url("../images/source_2.png") no-repeat center 8px;
}
.nav-left li.list03 i {
  height: 38px;
  background: url("../images/source_3.png") no-repeat center 8px;
}
.down-right {
  float: right;
  width: 700px;
}
.down-right h4 {
  font-size: 18px;
  font-weight: bold;
  color: #333;
  margin-bottom: 15px;
}
.down-right p {
  color: #666;
  font-size: 14px;
  line-height: 24px;
  border-bottom: 1px solid #eee;
  padding-bottom: 20px;
}
.down-right .downarea li {
  position: relative;
  border-bottom: 1px dotted #eee;
  padding: 10px 0;
  min-height: 100px;
}
.down-right .downarea li dl {
  width: 585px;
}
.down-right .downarea li dl dt {
  font-size: 16px;
  line-height: 24px;
  color: #333;
  margin-bottom: 10px;
}
.down-right .downarea li dl dd {
  font-size: 14px;
  line-height: 24px;
  color: #333;
}
.down-right .downarea li a.btn-down {
  position: absolute;
  right: 25px;
  top: 40px;
  background: #00a3fe;
  border-radius: 3px;
  display: block;
  padding-top: 8px;
  width: 57px;
  height: 49px;
  color: #fff;
  font-size: 16px;
  text-align: center;
}
.down-right .downarea li a.btn-down i {
  display: block;
}