.banner {
    width: 100%;
    position: relative;
    overflow: hidden;
}
.banner img {
    width: 100%;
    display: block;
}
.banner p {
    font-size: 30px;
    font-family: Roboto;
    font-weight: normal;
    color: #FFFFFF;
    position: absolute;
    text-transform: uppercase;
    bottom: 32px;
    right: 187px;
}
.section {
    width: 100%;
    background: #e9e7e6;
    overflow: hidden;
}
.section .joke {
    width: 1476px;
    margin: 108px auto 0;
}
.joke .item {
    width: 100%;
    transition: 0.6s;
    margin-bottom: 122px;
}
.joke .item .block {
    width: 100%;
    height: 71px;
    display: flex;
    align-items: center;
    transition: 0.6s;
    background: #D0D0D0;
    justify-content: space-between;
    padding: 0 49px 0 28px;
}
.joke .item .block p {
    font-size: 18px;
    font-family: Roboto;
    font-weight: bold;
    color: #333333;
}
.joke .item .block .btn {
    width: 23px;
    height: 23px;
    cursor: pointer;
    position: relative;
}
.joke .item .block .btn span {
    display: block;
    width: 23px;
    height: 2px;
    background: #DC0715;
    position: absolute;
    top: 50%;
    left: 50%;
}
.joke .item .block .btn span:nth-child(1) {
    transform: rotate(90deg);
    transition: 0.2s;
}
.joke .item_active .block .btn span:nth-child(1) {
    transform: rotate(360deg);
}
.joke .item .none {
    width: 1417px;
    margin: auto;
    display: none;
}
.joke .item .pdflist {
    height: 71px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(51,51,51,0.14);
}
.joke .item .pdflist p {
    font-size: 16px;
    font-family: Roboto;
    font-weight: normal;
    color: #666666;
    transition: 0.6s;
}
.joke .item .pdflist a {
    display: block;
    width: 29px;
    height: 22px;
    position: relative;
}
.joke .item .pdflist a img {
    position: absolute;
    top: 0;
    left: 0;
}
.joke .item .pdflist a img:nth-child(2) {
    opacity: 0;
    pointer-events: none;
    transition: 0.6s;
}
.joke .item .pdflist a img:nth-child(1) {
    opacity: 1;
    pointer-events: unset;
    transition: 0.6s;
}
.joke .item .pdflist_active a img:nth-child(2) {
    opacity: 1;
    pointer-events: unset;
}
.joke .item .pdflist_active a img:nth-child(1) {
    opacity: 0;
    pointer-events: none;
}
.joke .item .pdflist_active p {
    color: #333333;
}
.fixed {
    width: 100vw;
    height: 100vh;
    position: fixed;
    z-index: 99999;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: 0.6s;
}
.fixed.on {
    opacity: 1;
    pointer-events: auto;
}
.fixed .fix_shadow {
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: -1;
    background: rgba(0,0,0,0.2);
    cursor: pointer;
}
.fixed .fix_box {
    width: 600px;
    border-radius: 12px;
    background: #FFF;
    padding: 40px 40px 50px;
}
.fixed .fix_box h5 {
    font-size: 20px;
    font-family: Roboto;
    font-weight: 500;
    color: #2D2D2D;
    margin-bottom: 30px;
    line-height: 1.6;
}
.fixed .fix_box p {
    color: #666666;
    font-family: Roboto;
    font-size: 16px;
    margin-bottom: 10px;
}
.fixed .fix_box input {
    width: 100%;
    height: 40px;
    border-radius: 6px;
    font-size: 15px;
    padding: 0 15px;
    border: 1px solid #CCCCCC;
}
.fixed .fix_box button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 112px;
    height: 40px;
    background: #DC0715;
    font-size: 18px;
    font-family: Roboto;
    font-weight: 400;
    color: #FFFFFF;
    text-align: center;
    margin-top: 40px;
    transition: 0.6s;
    border-radius: 4px;
    border: none;
}
.fixed .fix_box button:hover {
    opacity: 0.6;
}
@media screen and (max-width: 1919px) {
    .banner p{
        font-size: 1.5625vw;
        bottom: 1.6666666667vw;
        right: 9.7395833333vw;
    }
    .section .joke{
        width: 76.875vw;
        margin: 5.625vw auto 0px;
    }
    .joke .item{
        margin-bottom: 6.3541666667vw;
    }
    .joke .item .block{
        height: 3.6979166667vw;
        padding: 0px 2.5520833333vw 0px 1.4583333333vw;
    }
    .joke .item .block p{
        font-size: 0.9375vw;
    }
    .joke .item .block .btn{
        width: 1.1979166667vw;
        height: 1.1979166667vw;
    }
    .joke .item .block .btn span{
        width: 1.1979166667vw;
        height: 0.1041666667vw;
    }
    .joke .item .none{
        width: 73.8020833333vw;
    }
    .joke .item .pdflist{
        height: 3.6979166667vw;
    }
    .joke .item .pdflist p{
        font-size: 0.8333333333vw;
    }
    .joke .item .pdflist a{
        width: 1.5104166667vw;
        height: 1.1458333333vw;
    }
}
@media screen and (max-width: 768px) {
    .banner {
        margin: 60px 0 0;
    }

    .banner img {
        height: 60vh;
    }

    .banner p {
        font-size: 24px;
        left: 5vw;
        right: unset;
        bottom: 30px;
    }
    .section .joke {
        width: 90%;
        margin: 0 auto;
    }
    .section {
        padding: 60px 0;
    }
    .joke .item .block {
        height: 50px;
        padding: 0 15px;
    }
    .joke .item .block p {
        font-size: 15px;
    }
    .joke .item .block .btn {
        width: 18px;
        height: 18px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .joke .item .block .btn span {
        width: 100%;
        height: 2px;
        top: unset;
        left: unset;
    }
    .joke .item .none {
        width: 100%;
    }
    .joke .item .pdflist {
        height: 40px;
        padding: 0 15px;
    }
    .joke .item .pdflist p {
        font-size: 14px;
    }
    .joke .item .pdflist a {
        width: 18px;
        height: 16px;
    }
}