.banner_img img {
    opacity: 0;
}

.banner {
    position: relative;
}

.banner_img {
    /* background: no-repeat center/cover; */
    background-repeat: no-repeat;
    background-size: 100% 100%;
    /* height: 31.2vw; */
    /* background-attachment: fixed; */
}

.banner_text {
    position: absolute;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    font-size: 48px;
    font-weight: bold;
    color: #FFFFFF;
    top: 0;
    left: 0;
    padding: 20px;
    width: 100%;
    height: 100%;
}

.nav_list_all {
    transition: all .5s ease-in-out;
    background-color: #FFFFFF;
    border-bottom: 1px solid #E6E6E6;
    /* height: 80px;
    line-height: 80px; */
}

.nav_fiex .nav_one_span {
    padding: 20px 0;
    font-size: 16px;
}

.nav_fiex .nav_one_span::after {
    height: 2px;
}

.nav_fiex {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    transition: all .5s ease-in-out;
    z-index: 10;
    box-shadow: rgba(0, 0, 0, 0.03) 0px 10px 40px 1px;
}

.nav_list_a {
    display: flex;
    /* align-items: center; */
    /*justify-content: center;*/
}

.nav_one {
    position: relative;
    font-size: 18px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    text-align: center;
    width:auto !important;
    /*margin-left: 2.5vw;*/
    padding: 0 2.5vw;
}
.nav_one:first-child{
    padding: 0px 2.5vw 0px 0px;
}
.nav_one_span {
    padding: 27px 0;
    position: relative;
    cursor: pointer;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
    height: 100%;
    /*max-width: 90%;*/
}

.nav_one_span::after {
    content: " ";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0%;
    height: 1px;
    opacity: 0;
    transition: all .5s ease-in-out;
    background-color: #B90012;
}

.nav_one_this {
    color: #B90012;
}

.nav_one_this .nav_one_span::after {
    opacity: 1;
    width: 100%;
    transition: all .5s ease-in-out;
}


/*分页*/

.page_one {
    width: 46px;
    height: 46px;
    line-height: 46px;
    text-align: center;
    font-size: 16px;
    color: #999999;
    border: 1px solid #E6E6E6;
    margin: 0 8px;
    cursor: pointer;
}

.pages_all {
    display: flex;
    justify-content: center;
}

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

.page_one_this {
    color: white;
    background-color: #B90012;
    border: none;
}

.pages_list1 {
    display: flex;
    align-items: center;
}

.pages_list2 {
    margin-left: 40px;
    font-size: 14px;
    color: #999999;
    letter-spacing: 1px;
}

.pages_list2_t {
    display: flex;
    align-items: center;
    margin-left: 15px;
}

.pages_list2_t input {
    width: 46px;
    height: 46px;
    border: 1px solid #E6E6E6;
    margin: 0 8px;
    padding: 0 8px;
    text-align: center;
}
.banner_text>p {
    letter-spacing: 8px;
}
@media(min-width:1025px) {
    .tbanner_text {
        display: block;
        transform: translate(0%, -50%);
        top: 40%;
        left: 6vw;
        padding-top: 20px;
        padding-bottom: 20px;
        width: auto;
        height: auto;
    }
}

@media (max-width: 1500px) and (min-width: 1025px) {
    .tbanner_text {
        left: 2vw;
    }
}
@media (max-width:1024px) {
    .tbanner_text {
        display: block;
        transform: translate(0%, -50%);
        top: 30%;
        left: -2vw;
        padding-top: 20px;
        padding-bottom: 20px;
        width: auto;
        height: auto;
    }
    .banner_img {
        height: auto;
    }
    .banner_text {
        font-size: 20px;
        font-family: Source Han Sans CN-Bold, Source Han Sans CN;
        font-weight: bold;
        color: #FFFFFF;
        line-height: 23px;
    }
    /*分页*/
    .page_one {
        width: 40px;
        height: 40px;
        margin: 0 4px;
        line-height: 40px;
    }
    .pages_all {
        margin-bottom: 20px;
    }
}