.header {
  background-color: white;
  box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.07);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1200;
}

.header .content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  font-size: 14px;
}

.header .logo {
  object-fit: cover;
  height: 60px;
}

.header .menu-list {
  display: flex;
  margin-left: auto;
  color: #333;
  height: 100%;
}

.header .menu-list .menu-item {
  display: flex;
  align-items: center;
  height: 100%;
  margin-right: 42px;
}

.header .menu-list .menu-item a {
  color: #635e5e;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
}

.header .menu-list .menu-item a:hover {
  color: #4b8aff;
}

.header .menu-list .menu-item:hover .arrow {
  background: url("/imgs/icon/ic_down.png");
  background-position: center;
  background-size: 100%;
}

.header .menu-list .menu-item .arrow {
  margin-left: 6px;
  background: url("/imgs/icon/ic_down.png");
  background-position: center;
  background-size: 100%;
  width: 10px;
  height: 5px;
}

.header .menu-list .menu-item.rel {
  position: relative;
}

.header .dropdown-board-s {
  visibility: hidden;
  position: absolute;
  top: 76px;
  width: 120px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: all ease-in-out .3s;
  box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.07);
  border-radius: 4px;
}

.header .dropdown-board-s:before {
  box-shadow: -3px -3px 6px 0px rgba(0, 0, 0, 0.07);
  border: 5px solid #fff;
  content: '';
  display: block;
  position: absolute;
  top: 7px;
  left: 50%;
  z-index: 1;
  transform: translate(-50%, -100%) rotate(45deg) scale(0.9, 1);
}

.header .dropdown-board-s .item {
  display: block;
  position: relative;
  width: 120px;
  height: 54px;
  line-height: 54px;
  text-align: center;
  background: #fff;
}

.header .dropdown-board-s .item:nth-child(1) {
  border-radius: 4px 4px 0 0;
}

.header .dropdown-board-s .item:last-child {
  border-radius: 0 0 4px 4px;
}

.header .dropdown-board-s .item:not(:last-child) {
  border-bottom: 1px solid #EBEBEB;
}
.header .menu-list .menu-item a.active{
  color: #4b8aff !important;
}
.menu-item.active .link{
  color: #4b8aff !important;
}
.header .menu-item:hover .dropdown-board-s,
.header .menu-item:hover .plans-dropdown,
.header .menu-item:hover .college-dropdown {
  visibility: visible;
  opacity: 1;
}

.header .content .controls {
  display: flex;
  line-height: 1;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

.header .content .controls .control-btn {
  padding: 10px 24px;
  border-radius: 2px;
  margin-left: 10px;
  border: 1px solid #4b8aff;
  cursor: pointer;
}

.header .content .controls .login {
  font-size: 16px;
  margin-top: 1px;
  color: #4b8aff;
  border-width: 0px;
}

.header .content .controls .login:hover {
  background: #4b8aff;
  color: white;
}

.header .content .controls .register {
  font-size: 16px;
  background: #4b8aff;
  color: white;
}

.header .content .controls .register:hover {
  background: #3476f2;
}

@media (max-width: 1200px) {
  .menu-list {
    display: none !important;
  }
  .feature {
    display: none !important;
  }
  .header .content .controls {
    margin-right: 1rem;
  }
  .header .content a {
    margin-left: 1rem;
  }
  .menu-btn {
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    margin-right: 20px;
    margin-top: 20px;
    background: url("/imgs/icon/ic_menu.png");
    background-position: center;
    background-size: 100%;
    width: 30px;
    height: 30px;
    cursor: pointer;
  }
}

ul,
li,
p,
h1,
h3,
h4,
img,
div {
  margin: 0;
  padding: 0;
}

h1,
h3,
h4 {
  font-weight: normal;
}

img {
  border: none;
}

li {
  list-style-type: none;
}
a,
a:hover,
a:visited,
a:focus {
  text-decoration: none;
}

.footer-inner{
  height: 610px;
  background: #f9f9f9;
}
@media (max-width: 1200px) {
  .footer-inner {
    height: 940px;
  }
}
img {
  vertical-align: middle;
  max-width: 100%;
}

::-webkit-scrollbar {
  width: 7px;
}

::-webkit-scrollbar-thumb {
  border-radius: 7px;
  background: #d6d6d6;
}

::-webkit-scrollbar-track {
  border-radius: 7px;
  background: hsla(0, 0%, 98%, .9);
}
#back-to-top {
  position: fixed;
  right: 6%;
  bottom: 15%;
  width: 50px;
  height: 50px;
  cursor: pointer;
}
#back-to-top {
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
}
#back-to-top.show {
  opacity: 1;
}