* {
    margin: 0;
    padding: 0;
}

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%;
    background: #fff;
}


.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: 100vw;
    height: 3.75rem;
    background-color: #c61616;
}

.topBody {
    width: 100vw;
    height: 3.75rem;
    line-height: 3.75rem;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.logoImg {
    width: 6.25rem;
    height: 2rem;
}

.logoImg img {
    width: 6.25rem;
    height: 2rem;
}

.inp_ss {
    display: flex;
    align-items: center;
    position: relative;
}

.search {
    width: 9.375rem;
    height: 2.1875rem;
    border-style: none;
    border: .0625rem solid #c51212;
    text-indent: .875rem;
    outline: none;
    font-family: MicrosoftYaHeiLight;
    font-size: .875rem;
    font-weight: normal;
    font-stretch: normal;
    background-color: #fff;
    border-radius: .3125rem 0 0 .3125rem;
}
::-webkit-input-placeholder {
    /* WebKit browsers */
    color: #cccccc;
}

:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 */
    color: #cccccc;
}

::-moz-placeholder {
    /* Mozilla Firefox 19+ */
    color: #cccccc;
}

:-ms-input-placeholder {
    /* Internet Explorer 10+ */
    color: #cccccc;
}

.button {
    position: absolute;
    left: 9.375rem;
    margin-left: -0.9375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.1875rem;
    border: none;
    background-color: #fff;
    border-radius: 0 .3125rem .3125rem 0;
}

.button img {
    width: 1.1875rem;
    height: 1.1875rem;
}
.xuan{
    width: 1.5625rem;
    height: 1.25rem;
    line-height: 1.75rem;
}
.xuan img{
    width: 1.5625rem;
    height: 1.25rem;
}

.nav{
    height: 3.75rem;
    line-height: 3.75rem;
    box-shadow: 0rem .125rem 0.3rem 0rem rgba(177, 177, 177, 0.46);
}

.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: #333333;
} 
.active a{
    border-bottom: .1875rem solid #c51212;
}
.nav_fg{
    color: #ccc;
    width: .0625rem;
}