#i_nav>ul>li{position: relative;}

#i_nav>ul>li>a {
    display: block;
  
       color: #fff;
    padding: 0;
    text-align: center;
    position: relative;
    transition: all 0.3s;}

#i_nav>ul>li>a::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    border-bottom: 5px solid transparent;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;}

#i_nav>ul>li.active>a {
      color: #ffe000;}

#i_nav>ul>li:hover>a {
     color: #ffe000;}

#i_nav>ul>li.on>div {
    border-top: 3px solid #ffffff;}

#i_nav>ul>li>a::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    border-bottom: 5px solid transparent;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;}

#i_nav>ul>li.on>a::after {
    border-bottom: 5px solid #ffffff;}

#i_nav>ul>li>div {
    position: absolute;
    top: 100%;
    width: 100%;
    min-width: 120px;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    z-index: 9999;
    overflow: hidden;
    line-height: normal;
    display: none;
    box-shadow: 0 5px 10px rgba(0, 0, 0, .2);}
#i_nav>ul>li:hover>div{display:block;}
#i_nav>ul>li>div>ul {
    overflow: hidden;width: 100%;}
#i_nav>ul>li>div>ul>li{width:100%;}
#i_nav>ul>li>div>ul>li a {
    display: block;
    font-size: 14px;
    line-height: 40px;
    transition: .3s;
    color: #333;
    text-align: center;}

#i_nav>ul>li>div>ul>li a:hover {
    background: #116eaf;
    color: #fff;}

.dqwz{position: ABSOLUTE;
    right: 0;
    top: 20PX;
    font-size: 14PX;color: #333333;}
.dqwz a{position:relative;color: #333333;}
/*样式*/