header{width: 100%;position: fixed;top: 0;z-index: 999;}

.logo{width: 100%;height: 80px;display: flex;justify-content: space-between;border-bottom: 1px solid #929292;box-shadow:0px 0px 4px #929292;background-color: #FFF;}
.logo-o{width:240px;height: 50px;margin-left: 5%;margin-top:15px;}
.logo-o img{width: 100%; height: 100%;}
.logo-t{margin-top: 8px;display: flex;}
.logo-t span{font-size: 20px;line-height: 68px;margin-left: 10px;}
.logo-t a{display: flex;line-height: 50px;}
.logo-t a span {margin-left: 20px;color: #777777;font-size: 14px;}
.logo-t img{width: 20px;height: 20px;margin-top: 26px;}
.container_o img{width: 20px;height: 17px;margin-top: 2px;}
.container_v{width: 100%;background-color: #FFF;height: 50px;}
.container_o{width: 60%;margin: auto;display: flex;justify-content: space-around;}
.container_o a{display: flex;font-size: 16px;}
.container_o ul{display: flex;width: 100%;justify-content: space-between;align-items: center;height: 50px;}
.container_o ul li{list-style: none}
.container_o a:hover{border-bottom: 2px solid #e7a48c;font-weight:600;z-index: 999}
.logo-f{display: flex;margin-right: 5%;}
.logo-th{margin-top:25px;display: flex;margin-left: 30px;outline: none;}
.logo-th input{height: 30px;outline: none;border-radius: 10px;border: 1px solid #929292; width: 200px;padding-left: 10px;}
.logo-th button{width: 30px;height: 24px;position: fixed;right: 5.5%;border: none;background-color: #FFF;margin-top: 2px;outline: none}
.logo-th img{width:24px;height: 24px;}
.menu6{display: flex;flex-direction: column;position: absolute;}

nav {height: 50px;background-color: #FFF;text-align: center;width: 100%;}
ul{list-style-type: none;}
.list_h{width:1200px; /*让列表居中*/margin: 0 auto; /*如果加了overflow则下拉效果没有*/ /*overflow: hidden;*/display: flex;justify-content: space-around;}
.list_h>li{ /*列表项靠左浮动*/float: left; /*给每个列表项定宽*/width: 125px;}
nav ul a{display: block;text-decoration: none;text-align: center;line-height: 30px;padding: 10px 10px;color: #000;font-size: 16px;background-color: #FFF;}
.dropbtn{ /*给第三个列表项设置相对定位*/position: relative;}
.dropdown{ /*给下拉菜单设置绝对定位*/position: absolute; /*设置绝对定位后,列表项的宽度会改变*/width: 125px; /*隐藏下拉菜单*/display: none;z-index: 999;}
.dropdown li a{font-size: 14px;}
.dropbtn a{display: flex;justify-content: center;}
.dropbtn a img{width: 16px;height: 17px;margin-top: 5px;margin-right: 5px;}
.dropbtn:hover .dropdown{
    display: block;
}
ul a:hover,
ul a:focus{font-weight: bold;}

.active{font-weight: bold;}