* {
  padding: 0;
  margin: 0;
}

ul {
  list-style: none;
}

.head {
  width: 100%;
  min-width: 1200px;
  height: 60px;
  color: #34495e;
  border-bottom: 1px solid #e1e6f0;
  box-sizing: border-box;
  background-color: #fff;
  box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.03);
  display: flex;
}

.logo {
  height: 60px;
  line-height: 60px;
  position: relative;
  width: 280px;
}

.logo::after {
  content: "";
  position: absolute;
  display: block;
  width: 1px;
  height: 20px;
  right: 0;
  top: 20px;
  background: #e1e6ef;
}

.logo a {
  text-decoration: none;
  padding-left: 48px;
}
.logo a img{
 vertical-align: middle 
}

.topmenu {
  margin-left: 30px;
}

.topmenu li {
  display: inline-block;
  margin: 0 40px 0 0;
  height: 58px;
  line-height: 60px;
  font-size: 14px;
  font-weight: bold;
  color: #142655;
  text-align: center;
  cursor: pointer;
}

.topmenu li.active {
  border-bottom: 2px solid #3860f4;
}

.topmenu li a {
  text-decoration: none;
  color: #142655;
}
.topmenu li.active a {
  color: #3860f4;
}

.main {
  position: absolute;
  top: 60px;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
}

.sidebar {
  position: absolute;
  left: 0;
  box-sizing: border-box;
  width: 280px;
  height: 100%;
  border-right: 1px solid #e1e6f0;
  background-color: #F9FAFF;
  padding: 18px 48px 36px 48px;
}

.content {
  margin-left: 281px;
  overflow-y: hidden;
  min-width: 900px;
  height: 100%;
}

.menu h3 {
  padding: 0.5em 0;
}

.menu a {
  display: block;
  text-decoration: none;
  position: relative;
  font-size: 14px;
  line-height: 1.4;
  letter-spacing: .05em;
  color: #34495e;
}

.menu a[href]:hover {
  font-weight: bold;
  color: #3860f4
}

.menu a[href]::after {
  content: "";
  width: 2px;
  height: 2px;
  border-radius: 2px;
  border: 1px solid #c2c8d0;
  background: #fff;
  position: absolute;
  right: 0;
  top: 7px;
}

.menu a[href]:hover::after {
  color: #3860f4;
  width: 3px;
  height: 3px;
  border-radius: 3px;
  border: 1px solid #3860f4;
}

.menu a.active {
  font-weight: bold;
  color: #3860f4
}


.submenu li {
  margin-bottom: 0.7em;
  padding-left: 0.5em;
}