.leftty .toptitle {
  border-bottom: 1px solid #f3f3f3;
  height: 48px;
  line-height: 48px;
  display: flex;
}
.leftty .toptitle span {
  margin-left: 42px;
  width: 64px;
  display: block;
}
.leftty {
  margin-top: 60px;
}

.leftty .toptitle img {
  width: 13px;
  height: 13px;
  margin-left: 50%;
  margin-top: 20px;
}

.leftdianji {
  background-color: #24a9e1;
}

.zhankai span {
  margin-left: 68px;
  width: 94px;
  display: block;
  font-size: 13px;
  line-height: 45px;
  color: #999999;
}
.zhankai div {
  height: 45px;
}
.zhankai div {
  display: flex;
}
.zhankai img {
  width: 13px;
  height: 13px;
  margin-left: 31%;
  margin-top: 15px;
  display: none;
}

.bianse {
  color: #000000 !important;
}

.zhankai {
  display: none;
}
/*包含以下四种的链接*/
a {
  text-decoration: none;
}
/*正常的未被访问过的链接*/
a:link {
  text-decoration: none;
}
/*已经访问过的链接*/
a:visited {
  text-decoration: none;
}
/*鼠标划过(停留)的链接*/
a:hover {
  text-decoration: none;
}
/* 正在点击的链接*/
a:active {
  text-decoration: none;
}

.nav-fixed {
  background-color: #ffffff;
  border: 1px solid #f3f3f3;
  width: 18%;
  position: fixed;
  top: 0;
  z-index: 9999;
  right: 0;
  height: 100%;
}

@media screen and (max-width: 641px) {
  .nav-fixed {
    width: 100%;
  }
}

.leftty .toptitle span {
  width: 242px;
  text-transform: capitalize;
}
.leftty .toptitle img {
  margin-left: 0;
}
.zhankai span {
  width: 153px;
}