* {
    margin: 0;
    padding: 0;
}
body{
    background-color: #f5f5f5;
}
ul li {
    list-style-type: none;
}

a {
    text-decoration: none;
}

/*去掉移动端tab栏的滚动条 start*/

.nav_ul::-webkit-scrollbar {
    display: none;
}

/*去掉移动端tab栏的滚动条 end*/

.nav-height {
    position: relative;
}

.nav_ul {
    display: flex;
    white-space: nowrap;
    /*overflow-x: scroll;*/
    overflow-y: hidden;
    width: 100%;
}

.t1 {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
}

.t2 {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.t3 {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.t4 {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
}

html {
    overflow-y: scroll;
}

:root {
    overflow-y: auto;
    overflow-x: hidden;
}

:root body {
    position: absolute;
}

body {
    width: 100vw;
    overflow: hidden;
}
.top{
    width: 100%;
}
.head{
    width: 100%;
    box-sizing: border-box;
    padding: .9375rem 0;
    display: flex;
    justify-content: space-around;
    align-items: end;
    background-color: #E59D20;
}
.logo{
    width: 7.25rem;
    height: 2.3125rem;
}
.logo img{
    width: 7.25rem;
    height: 2.3125rem;
}
.inp_ss{
    width: 13.125rem;
    height: 2.3125rem;
    display: flex;
    position: relative;
}
.button{
    width: 3.125rem;
    height: 2.3125rem;
    border: 0;
    background: rgba(234, 234, 234, 0.5);
    border-radius: 0 .3125rem .3125rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
.button img{
    width: 1.25rem;
    height: 1.25rem;
}
.search{
    height: 2.3125rem; 
    outline: none;
    border: 0;  
    text-indent: .875rem;
    background: rgba(234, 234, 234, 0.5);
    border-radius: .3125rem 0 0 .3125rem;
}
::-webkit-input-placeholder {
    /* WebKit browsers */
    color: #eee;
}

.nav{
    height: 3.75rem;
    line-height: 3.75rem;
    background-color: #fff;
    box-shadow: 0rem .125rem .625rem 0rem rgba(51,51,51,0.3);
}

.nav_ul{
    display: flex;
    align-items: center;
}

.nav_ul li{
    position: relative;
    flex-shrink: 0;
    list-style-type: none;
}
.nav_ul li a{
    display: inline-block;
    height: 3.125rem;
    margin: 0 1.4375rem;
    text-decoration: none;
    color: #333;
} 
.active a{
    border-bottom: .1875rem solid #E59D20;
}
.nav_fg{
    color: #eee;
    width: .0625rem;
}