.sec1 {
    padding-top: 100px;
    width: 100%;
    height: 50vh;
    margin: 0 auto 20px;
    position: relative;
    overflow: hidden;
}
.mb_link {
    margin-bottom: 60px;
}
.sec1 img {
    width: 100%;
    display: block;
    transform: scale(1.2);
}
.sec1 img.aos-animate {
    transform: scale(1);
    transition-timing-function: unset!important;
}
.sec1 form {
    position: absolute;
    top: calc(50% + 60px);
    left: 50%;
    transform: translate(-50%,-50%);
    width: 480px;
    height: 60px;
    background: #FFFFFF;
    opacity: 1;
    border-radius: 0px;
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 99;
}
.sec1 form:after {
    content: "";
    width: 488px;
    height: 68px;
    background: #FFFFFF;
    opacity: 0.35;
    border-radius: 0px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    z-index: -1;
}
.sec1 form input {
    width: 420px;
    height: 30px;
    border: none;
    margin-right: 10px;
    font-size: 18px;
    font-family: PingFang SC l;
    font-weight: 300;
    line-height: 30px;
    color: #000;
}
.sec1 form input::placeholder {
    font-size: 18px;
    font-family: PingFang SC l;
    font-weight: 300;
    line-height: 30px;
    color: #999999;
}
.sec1 form button {
    background: unset;
}
.sec1 form button .iconfont {
    font-size: 28px;
    color: #999999;
    transition: 1s;
}
.sec1 form button .iconfont:hover {
    color: #005CA9;
}
.sec2 .joke {
    width: 1680px;
    margin: auto;
    padding-bottom: 65px;
}
.sec2 .joke h1 {
    font-size: 30px;
    font-family: PingFang SC m;
    font-weight: 400;
    line-height: 30px;
    color: #333333;
    padding-bottom: 26px;
    border-bottom: 1px solid #EBEBEB;
    margin-bottom: 37px;
}
.sec2 .joke .joinList {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    padding: 0 40px;
}
.sec2 .joke .joinList .item {
    display: block;
    width: 750px;
}
.sec2 .joke .joinList .item .title {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}
.sec2 .joke .joinList .item .title h2 {
    font-size: 24px;
    font-family: PingFang SC m;
    font-weight: 400;
    line-height: 30px;
    color: #333333;
    margin-right: 13px;
    transition: 1s;
}
.sec2 .joke .joinList .item p {
    font-size: 16px;
    font-family: PingFang SC r;
    font-weight: 300;
    line-height: 30px;
    color: #999999;
}
.sec2 .joke .joinList .item {
    padding-bottom: 37px;
    border-bottom: 1px solid #EBEBEB;
    position: relative;
    margin-bottom: 41px;
}
.sec2 .joke .joinList .item:after {
    content: "";
    width: 0%;
    height: 1px;
    transition: 1s;
    background: #005CA9;
    position: absolute;
    bottom: -1px;
    left: 0;
}
.sec2 .joke .joinList .item:hover:after {
    width: 100%;
}
.sec2 .joke .joinList .item:hover .title h2 {
    color: #005CA9;
}
@media screen and (max-width: 2560px){

}


@media screen and (max-width: 2048px){

}

@media screen and (max-width: 1856px){
	.sec1{
        margin-bottom: 60px;
    }
    .sec2 .joke .joinList {
        padding: 0 30px;
    }
}

@media screen and (max-width: 1792px){
	.sec1{
        width: 90%;
    }
    .sec1 form{
        height: 52px;
        padding: 0 20px;
    }
    .sec1 form:after {
        height: 60px;
    }
    .sec2 .joke{
        width: 90%;
    }
    .sec2 .joke .joinList .item .title h2 {
        font-size: 20px;
    }
    .sec2 .joke .joinList .item {
        padding-bottom: 26px;
        margin-bottom: 20px;
    }
    .sec2 .joke h1 {
        margin-bottom: 30px;
    }
    .sec2 .joke .joinList .item{
        width: 49%;
    }
}

@media screen and (max-width: 1680px){
	.sec1 form input::placeholder{
        font-size: 16px;
    }
    .sec1 form {
        height: 44px;
    }
    .sec1 form:after {
        height: 54px;
    }
}

@media screen and (max-width: 1600px){

}

@media screen and (max-width: 1440px){
	.sec2 .joke .joinList {
        padding: 0 20px;
    }
    .sec2 .joke h1 {
        margin-bottom: 20px;
    }
    .sec2 .joke .joinList .item .title {
        margin-bottom: 10px;
    }
    .sec2 .joke .joinList .item {
        padding-bottom: 20px;
    }
    .sec1 {
        margin-bottom: 40px;
    }
}

@media screen and (max-width: 1400px){

}

@media screen and (max-width: 1366px){

}






@media screen and (max-width: 820px){
    .sec1{
        width: 100%;
        padding: 0 30px;
        margin-top: 120px;
    }
    .sec2 .joke{
        width: 100%;
        padding: 0 30px;
    }
    .sec1 img{
        transform: scale(1);
    }
    .sec2 .joke .joinList {
        padding: 0;
    }
    .sec2 .joke .joinList .item{
        width: 100%;
        padding-bottom: 10px;
    }
    .sec2 .joke h1 {
        padding-bottom: 20px;
        font-size: 24px;
    }
    .sec1 form {
        width: 400px;
        padding: 0 10px;
    }
    .sec1 form:after {
        width: 415px;
    }
    .sec1 form {
        bottom: 70px;
    }
    .sec1 form input{
        flex: 1;
    }
}


@media screen and (max-width: 768px){

}


@media screen and (max-width: 540px){
	.sec1,
    .sec2 .joke {
        padding: 0 20px;
    }
    .sec2 .joke .joinList .item p {
        font-size: 12px;
    }
    .sec2 .joke .joinList .item .title h2 {
        font-size: 18px;
    }
    .sec2 .joke .joinList .item .title{
        margin-bottom: 0;
    }
    .sec1{
        margin-top: 100px;
        margin-bottom: 30px;
    }
    .sec2 .joke h1 {
        padding-bottom: 10px;
    }
    .sec1 form {
        width: 300px;
        height: 32px;
        bottom: 40px;
    }
    .sec1 form input {
        width: 240px;
    }
    .sec1 form input::placeholder{
        font-size: 14px;
    }
    .sec1 form:after {
        width: 315px;
        height: 42px;
    }
    .sec2 .joke .joinList .item p {
        line-height: 18px;
    }
}


@media screen and (max-width: 414px){

}

@media screen and (max-width: 375px){

}

@media screen and (max-width: 360px){

}