.banner {
    width: 100%;
}
.banner img {
    display: block;
    width: 100%;
}
.link {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    height: 60px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.16);
}
.link .line {
    width: 108px;
    height: 2px;
    background: #39B6E7;
    position: absolute;
    bottom: -1px;
    /*left: 709px;*/
    transition: 1s;
}
.link a {
    display: block;
    font-size: 20px;
    font-family: HarmonyOS;
    font-weight: 400;
    color: #232323;
    transition: 1s;
    margin-right: 118px;
}
.link a:nth-child(3) {
    margin-right: 0;
}
.link a.on {
    color: #39B6E7;
}
.link a:hover {
    color: #39B6E7;
}
.title {
    width: 100%;
    border-bottom: 1px solid rgba(0, 0, 0, .15);
}
.title .joke {
    width: 1480px;
    margin: auto;
}
.title .joke h1 {
    font-size: 48px;
    font-family: HarmonyOS-B;
    font-weight: bold;
    color: #333333;
    line-height: 253px;
}
.sec4 {
    width: 100%;
    margin-bottom: 135px;
}
.sec4 .joke {
    width: 1480px;
    margin: auto;
}
.sec4 .joke .title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 109px;
}
.sec4 .joke .title h3 {
    font-size: 20px;
    font-family: HarmonyOS ,PingFang SC;
    font-weight: 500;
    color: #333333;
}
.sec4 .joke .title h1 {
    font-size: 48px;
    font-family: HarmonyOS ,PingFang SC;
    font-weight: bold;
    color: #333333;
    margin-right: 478px;
}
.sec4 .joke .title .newsInfo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 189px;
    height: 56px;
    border: 2px solid #39B6E7;
    border-radius: 28px;
    position: relative;
    overflow: hidden;
}
.sec4 .joke .title .newsInfo::after {
    content: "";
    width: 20px;
    height: 20px;
    background: #39B6E7;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    right: 39px;
    transform: translateY(-50%);
    transition: 1s;
    z-index: -1;
}
.sec4 .joke .title .newsInfo p {
    font-size: 16px;
    font-family: HarmonyOS ,PingFang SC;
    font-weight: 400;
    color: #39B6E7;
    margin-right: 23px;
    transition: 1s;
}
.sec4 .joke .title .newsInfo:hover p {
    color: #FFFFFF;
}
.sec4 .joke .title .newsInfo:hover::after {
    width: 300px;
    height: 300px;
    transform: translate(40px,-50%);
}
.sec4 .joke .title .newsInfo .iconfont {
    font-size: 12px;
    transform: rotate(180deg);
    color: #FFFFFF;
    position: relative;
    z-index: 1;
}
.sec4 .joke .box {
    display: flex;
    flex-wrap: wrap;
}
.sec4 .joke .box .item {
    width: 33.33%;
    display: block;
    border-top: 1px solid rgba(39, 40, 40, .14);
    padding-top: 28px;
    margin-bottom: 93px;
}
.sec4 .joke .box .item>a {
    display: block;
}
.sec4 .joke .box .item .top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 49px;
}
.sec4 .joke .box .item .top .time {
    font-size: 14px;
    font-family: SuisseIntl;
    font-weight: 400;
    color: #333333;
}
.sec4 .joke .box .item .top>div {
    display: flex;
    align-items: center;

}
.sec4 .joke .box .item .top>div p {
    font-size: 14px;
    font-family: HarmonyOS ,PingFang SC;
    font-weight: 400;
    color: #4D4D4D;
    margin-right: 5px;
    transition: 1s;
}
.sec4 .joke .box .item .top>div .iconfont {
    transform: rotate(180deg);
    font-size: 12px;
    color: #4D4D4D;
    transition: 1s;
}
.sec4 .joke .box .item .top>div:hover p {
    color: #39B6E7;
}
.sec4 .joke .box .item .top>div:hover .iconfont {
    color: #39B6E7;
}
.sec4 .joke .box .item h1 {
    font-size: 24px;
    font-family: HarmonyOS-B ,PingFang SC;
    font-weight: 550;
    color: #333333;
    line-height: 26px;
    margin-bottom: 32px;
    transition: 1s;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sec4 .joke .box .item:nth-child(3n+1) {
    padding-right: 46px;
}
.sec4 .joke .box .item:nth-child(3n+2) {
    padding-left: 23px;
    padding-right: 23px;
}
.sec4 .joke .box .item:nth-child(3n) {
    padding-left: 46px;
}
.sec4 .joke .box .item>a>p {
    width: 100%;
    font-size: 14px;
    font-family: HarmonyOS ,PingFang SC;
    font-weight: 400;
    color: #4D4D4D;
    line-height: 28px;
    height: 56px;
    margin-bottom: 28px;
    transition: 1s;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sec4 .joke .box .item>a>p.time {
    width: 70%;
}
.sec4 .joke .box .item:hover h1 {
    color: #39B6E7;
}
.sec4 .joke .box .item:hover>p {
    color: #39B6E7;
}
.sec4 .joke .box .item .img {
    display: block;
    width: 448px;
    height: 258px;
    overflow: hidden;
}
.sec4 .joke .box .item .img img {
    display: block;
    transition: 1s;
}
.sec4 .joke .box .item .img:hover img {
    transform: scale(1.2);
}
.sec4 .joke .box .item .img {
    width: 100%;
}
.sec4 .joke .box .item .img img {
    width: 100%;
}
.sec4 .page {
    display: flex;
    justify-content: center;
    align-items: center;
}
.sec4 .page a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 37px;
    height: 37px;
    border-radius: 50%;
    font-size: 18px;
    font-family: Studio Pro;
    font-weight: 400;
    color: #9E9E9E;
    transition: 1s;
    margin-right: 5px;
}
.sec4 .page a:hover {
    background: #39B6E7;
    color: #fff;
}
.sec4 .page a.on {
    background: #39B6E7;
    color: #fff;
}
.sec4 .joke .box .item:nth-child(1),.sec4 .joke .box .item:nth-child(2),.sec4 .joke .box .item:nth-child(3) {
    border-top: none;
}

.sec4 .joke form {
    display: flex;
    align-items: center;
    margin-top: 54px;
    margin-bottom: 49px;
}
.sec4>.joke form>div {
    position: relative;
}
.sec4>.joke form>div .iconfont {
    position: absolute;
    top: 50%;
    right: 27px;
    transform: translateY(-50%) rotate(180deg);
    color: rgba(140, 140, 140, 1);
    font-size: 24px;
}
.sec4>.joke form>div:nth-child(1) {
    margin-right: 40px;
}
.sec4>.joke form>div p {
    font-size: 14px;
    font-family: HarmonyOS;
    font-weight: 400;
    color: #8C8C8C;
    position: absolute;
    top: 50%;
    left: 25px;
    transform: translateY(-50%);
}
.sec4>.joke form>div select {
    width: 328px;
    height: 54px;
    border: 1px solid #EFEFEF;
    border-radius: 6px;
    padding: 0 72px;
    appearance: none;
    font-size: 18px;
    font-family: HarmonyOS;
    font-weight: 500;
    color: #2B2B2B;
}
.sec4>.joke form button {
    margin-left: 54px;
    font-size: 14px;
    font-family: HarmonyOS;
    font-weight: 400;
    color: #8C8C8C;
    border: none;
    background: none;
    position: relative;
    cursor: pointer;
    transition: 1s;
}
.sec4>.joke form button:after {
    content: "";
    width: 100%;
    height: 1px;
    background: #8C8C8C;
    position: absolute;
    left: 0;
    bottom: -5px;
    transition: 1s;
}
.sec4>.joke form button:hover {
    color: #39B6E7;
}
.sec4>.joke form button:hover:after {

    background: #39B6E7;
}
@media screen and (max-width: 1600px) {
    .title .joke {
        width: 90%;
    }
    .sec4 .joke {
        width: 90%;
    }
    .sec4 .joke .box .item {
        width: 33%;
    }
    .sec4 .joke .box .item .img {
        width: 100%;
    }
    .sec4 .joke .box .item .img img {
        width: 100%;
    }
    .sec4 .joke .box .item {
        margin-bottom: 50px;
    }
}
@media screen and (max-width: 1024px) {
    .link {
        height: 50px;
        padding: 0 20px;
        justify-content: center;
    }

    .link a {
        margin-right: 0;
        font-size: 14px;
        text-align: center;
        line-height: 50px;
        height: 100%;
        width: 50%;
    }
    .link a:nth-child(2) {
        margin-right: 0;
    }
    .link .line {
        width: 84px;
        left: 190px;
    }
    .title {
        height: 150px;
    }
    .title .joke h1 {
        font-size: 32px;
        line-height: 150px;
    }
    .sec4 .joke {
        width: 90%;
    }
    .sec4 .joke .box .item {
        width: 100%;
        padding-right: 0;
    }
    .sec4 .joke .box .item .img img {
        width: 100%;
    }
    .sec4 .joke .box .item .img {
        width: 100%;
        height: auto;
    }
    .sec4 .joke .box .item h1 {
        font-size: 20px;
        margin-bottom: 18px;
    }
    .sec4 .joke .box .item .top {
        margin-bottom: 30px;
    }
    .sec4 .joke .box .item {
        margin-bottom: 40px;
    }
    .sec4 {
        padding-top: 30px;
    }
    .sec4 .joke .box .item:nth-child(3n+1) {
        padding-right: 0;
    }
    .sec4 .joke .box .item:nth-child(3n+2) {
        padding-left: 0;
        padding-right: 0;
    }
    .sec4 .joke .box .item:nth-child(3n) {
        padding-left: 0;
    }
    .sec4>.joke form button {
        display: none;
    }
}