body {
  margin: 0;
  overflow-x: hidden;
}
.container{
  font-family: MicrosoftYaHei;
  align-items: center;
  margin: 0 auto;
  width: 100%;
  min-height: calc(100vh - 80px - 72px);
}
.a1 {
  text-decoration: none;
  color: #303133FF;
}

.a1:hover {
  color: #0062FFFF;
}

.a {
  text-decoration: none;
  color: #409EFFFF;
}

/* 头部 */
nav{
  list-style: none;	
 }
 .navbar-default .navbar-toggle .icon-bar{
     background: #0062FFFF;
 }
 .navbar-toggle{
     background: white;
 }
 .navbar{
     width: 100%;
     display: flex;
     justify-content: center;
     background: #FFFFFF;
     margin-bottom: 0;
 }
 .navbar-box{
     width: 1200px;
     height: 70px;
     line-height: 70px;
 }
 #navbar-collapse{
     background: #FFFFFF;
 }
 .header-left-content{
     margin-left: 20px;
     margin-right: 20px;
     height: 70px;
     line-height: 70px;
 }
 .navbar-header{
     height: 70px;
     line-height: 70px;
     align-items: center;
 }
 
 .header-wrapper {
     width: 100%;
     display: flex;
     align-items: center;
     justify-content: center;
 }
 .navbar-left, .navbar-right{
     align-items: center;
 }
 .navbar-left>li,.navbar-right>li{
     display: flex;
     align-items: center;
     height: 70px;
     line-height: 70px;
 }
 .header {
     width: 1200px;
     height: 70px;
     display: flex;
     justify-content: space-between;
     align-items: center;
     flex-direction: row;
     flex-wrap: nowrap;
 }
 
 .header-left {
     display: flex;
     justify-content: space-between;
     align-items: center;
     width: 368px;
     font-size: 16px;
 }
 
 .header-left-content {
     font-size: 20px;
     font-weight: bold;
     color: #303133FF;
 }
 .navbar-toggle{
     top: 25%;
     margin-top: 0px;
 }
 .header-left-content>span {
     padding-top: 3px
 }
 
 .header-right {
     display: flex;
     justify-content: space-between;
     align-items: center;
     width: 590px;
     font-size: 16px;
     list-style: none;	
 }
 
 .login-btn {
     background: #0062FFFF;
     border-radius: 8px;
     border: none;
     width: 111px;
     height: 40px;
     color: white;
 }
 
 .login-btn:focus {
     border: 0 none;
     outline: none;
 }
 
 .login-btn:hover {
     background-color: #4788f1;
 }
 
 .reg-btn {
     border-radius: 8px;
     border: none;
     width: 110px;
     height: 40px;
 }
 
 .reg-btn:focus {
     border: 0 none;
     outline: none;
 }
 
 .reg-btn:hover {
     background-color: #dfdfdf;
 }
 #guide{
	display: none;
	width: 100%;
}
.guide-box{
	background: black;
	color: #606266;
	padding: 15px 30px;
	font-size: 15px;
	font-weight: 400;
	display: flex;
	justify-content: flex-end;
	width: 100%;
}
.guide-box >img{
	width: 22px;
	height: 26px;
}
.group {
    padding-top: 60px;
    display: flex;
    justify-content: space-between;
    max-width: 1140px;
    min-width: 300px;
    margin: 0 auto;
}

.group-item {
    background: white;
    width: 210px;
    height: 270px;
    padding: 0 20px;
    border-radius: 8px;
    overflow: hidden;
}

.group-item-title {
    font-size: 16px;
    color: #303133FF;
    font-weight: 600;
}

.group-img {
    margin-top: 43px;
    margin-bottom: 23px;
    width: 64px;
    height: 64px;
    border-radius: 8px;
}

.group-item-content {
    position: relative;
    top: 12px;
    text-align: justify;
    font-size: 14px;
    color: #606266FF;
}

/* 底部 */
footer {
  bottom: 0px;
  display: flex;
  height: 80px;
  width: 100%;
  justify-content: center;
  line-height: 80px;
  font-size: 14px;
  color: #606266FF;
  border-top:1px solid #ECF0F1;
  background-color: #FFFFFF;
}

.footer-content {
  display: flex;
  width: 466px;
  justify-content: space-between;
}