.head-left {
  float: left;
}
.head-right {
  float: right;
}
.head-logo {
  width: 133px;
  height: 34px;
  margin-top: -3px;
}
.head-title {
  display: block;
  height: 50px;
  line-height: 50px;
  width: auto;
  padding: 0 15px;
  color: #333;
  font-size: 18px;
}
.head-icons {
  width: 20px;
  height: 20px;
  margin-left: -4px;
}
.topnav-list {
  float: left;
  height: 50px;
  line-height: 50px;
  font-size: 14px;
  margin-left: 50px;
  list-style: none;
}
.topnav-item {
  float: left;
  margin-right: 38px;
  line-height: 50px;
  cursor: pointer;
}
.topnav-text {
  font-size: 16px;
  color: #191919;
}
.topnav-text:hover {
  color: #191919;
  text-decoration: none;
}
.topnav-choosed {
  color: #e41e2b !important;
}
@media screen and (max-width: 1699px) and (min-width: 1440px) {
  .content-in {
    max-width: 1280px;
  }
}
.content-in {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}
.top {
  position: fixed;
  top: 0;
  background-color: #fff;
  height: 50px;
  line-height: 50px;
  z-index: 1200;
  left: 0;
  right: 0;
  display: block;
}
.top-in {
  height: 50px;
  line-height: 50px;
  font-size: 14px;
  color: #454545;
  display: flex;
  justify-content: space-between;
}
.top-left {
  display: flex;
  align-items: center;
  height: 50px;
  line-height: 53px;
}
.top-right {
  display: flex;
  align-items: center;
  color: #454545 !important;
}
.top-right .iconfont {
  font-size: 20px;
}
.top-right .dropdrown {
  display: flex;
  align-items: center;
  margin-left: 10px;
  position: relative;
}
.top-right .dropdrown .title {
  color: #454545;
  margin-left: 10px;
  text-decoration: none;
}
.top-right .dropdrown .title.login-title:hover {
  color: #108cee !important;
}
.top-right .pc-search-container {
  margin-top: 2px;
}
.top-right .pc-search-container .input-box {
  width: 220px;
  overflow: hidden;
  transition-duration: 0.2s;
}
.top-right .pc-search-container .icon-sousuo1 {
  margin-top: 2px;
  font-size: 18px;
  cursor: pointer;
  padding-right: 0;
}
.dropdrown:hover > .menu {
  visibility: visible;
  opacity: 1;
}
.menu {
  position: absolute;
  top: 51px;
  right: 0;
  width: 90px;
  background-color: #fff;
  padding: 5px 0;
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
  overflow: hidden;
  box-shadow: 0 5px 5px 0 rgba(0, 0, 0, 0.1);
  margin: 0;
  visibility: hidden;
  opacity: 0;
  transition: visibility 0.3s linear, opacity 0.3s linear;
}
.menu .menu-item {
  color: #555;
  margin: 0;
  padding: 10px 15px;
  line-height: 15px;
  text-align: center;
  cursor: pointer;
  transition-duration: 0.2s;
}
.menu .menu-item:hover {
  background-color: #ebf6fa;
}
.menu .menu-item:first-child {
  margin-top: 0;
}
.web-name {
  float: right;
  height: 50px;
  line-height: 50px;
  text-overflow: ellipsis;
  overflow: hidden;
  color: #454545;
  font-size: 17px;
  margin-left: 20px;
  font-weight: 500;
}
.triangle {
  border-color: #777 transparent transparent transparent;
  display: inline-block;
  border-style: solid solid dashed dashed;
  border-width: 5px 3px 1px 3px;
  margin-left: 2px;
}
@media (max-width: 1079px) {
  .topnav-list {
    display: none;
  }
}
@media (max-width: 720px) {
  .web-name {
    display: none;
  }
}
@media (max-width: 1280px) {
  .top-left {
    margin-left: 20px;
  }
  .top-right {
    margin-right: 20px;
  }
}