.btn {
    width: 150px;
    height: 38px;
    background-color: #fff;
}

/* .inside-banner .info {
    margin-top: 19px;
} */

.btn a {
    display: block;
    width: 100%;
    height: 100%;
    color: #FF5E00;
    text-align: center;
    line-height: 38px;
    font-size: 16px;
    margin-top: 37px;
}

.btn a {
    display: inline-block;
    text-align: center;
    color: #FF5E00;
    line-height: 38px;
    font-size: 16px;
    margin-top: 37px;
}

.qus {
    padding: 30px 0 58px 0;
}

.qus .qus-list li {
    float: left;
    width: 25%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 47px 46px 62px 47px;
    text-align: center;
    border: 1px solid transparent;
    margin-top: 42px;
    min-height: 323px;
}

.qus .qus-list li:hover {
    box-shadow: 0px 14px 29px 0px rgba(222, 222, 222, 0.45);
    border: 1px solid #ddd;
}

.qus .qus-list li .one-title {
    margin: 30px 0 15px 0;
    height: 28px;
    font-size: 20px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #242424;
    line-height: 28px;
    font-weight: bold;
}

.list-info {
    height: 40px;
    font-size: 14px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #8C8C8C;
    line-height: 20px;
}

.core-advantage {
    background-color: #F3F5F6;
    padding-top: 40px;
    padding-bottom: 90px;
}

.core-advantage .left {
    width: 41%;
    padding-top: 9%;
}

.core-advantage .right {
    width: 45%;
}

.core-advantage .left .free-txt {
    width: 150px;
    height: 38px;
    background: #ED6929;
    text-align: center;
}

.core-advantage .img-txt {
    margin-top: 90px;
    padding: 0 180px;
    min-height: 192px;
}

.core-advantage .left .free-txt a {
    display: block;
    width: 100%;
    height: 100%;
    color: #fff;
    font-size: 16px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 38px;
}

.core-advantage .left .left-title {
    height: 28px;
    font-size: 20px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #262626;
    line-height: 28px;
}

.core-advantage .left .left-info {
    height: 40px;
    font-size: 14px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #2A2A2A;
    line-height: 20px;
    margin: 20px 0 50px 0;
    /* padding-right: 265px; */
}

.fr {
    float: right;
}

.fl {
    float: left;
}

.case-presentation {
    padding: 50px 0 122px 0;
}

.case-presentation .photo {
    width: 55px;
    height: 56px;
    border-radius: 50%;
    margin-right: 16px;
}

.case-list {
    margin-top: 50px;
}

.case-presentation .case-list li {
    float: left;
    width: 23.1%;
    border: 1px solid #EDEDED;
    min-height: 274px;
    margin-right: 30px;
    padding: 30px 23px 37px 21px;
    transition: all 100ms ease;
    position: relative;
}

.case-presentation .case-list li::after {
    display: inline-block;
    width: 1%;
    content: '';
    height: 3px;
    position: absolute;
    left: 50%;
    bottom: 0px;
    color: #242424;
    opacity: 0;
    border-bottom: 3px solid #ED6929;
    transition: all 0.5s ease;
}

.case-presentation .case-list li:hover {
    box-shadow: 0px 14px 29px 0px rgba(222, 222, 222, 0.45);
    /* border-bottom: 3px solid #ED6929; */
}

.case-presentation .case-list li:last-child {
    margin-right: 0;
}

.case-presentation .case-list li:hover::after {
    width: 100%;
    left: 0;
    opacity: 1;
}

.case-list .line {
    border: 1px solid #DEDEDE;
    margin-top: 32px;
    margin-bottom: 18px;
}

.case-list .case-info {
    min-height: 120px;
    font-size: 14px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #8C8C8C;
    line-height: 20px;
}

.moblie {
    display: none;
}

.free-use {
    height: 180px;
    padding-top: 45px;
}

.free-use .title {
    font-size: 24px;
    /* font-weight: bold; */
    margin: auto;
    height: 42px;
    text-align: center;
    color: #fff;
}

.free-use .btn-use {
    margin: auto;
    padding-top: 20px;
}

.free-use .btn-use a {
    display: block;
    width: 142px;
    line-height: 42px;
    height: 100%;
    border: 2px solid #fff;
    text-align: center;
    margin: auto;
    color: #fff;
    font-size: 16px;
    transition: all .5s ease;
}

.free-use .btn-use a:hover {
    background-color: #ea5839;
    border: 2px solid #ea5839;
}

.free-use {
    background: url(../images/footbg.jpg);
}

.self-tit {
    margin-top: 20px !important;
}

@media screen and (max-width:768px) {
    .qus .qus-list li {
        width: 50%;
        margin-top: 0;
    }

    .core-advantage .left {
        padding-top: 0;
    }

    .case-presentation {
        padding-bottom: 0;
    }

    .inside-title .title {
        margin-bottom: 30px;
    }

    .core-advantage .img-txt {
        padding: 0;
    }

    .case-presentation .case-list li {
        width: 100%;
        margin-right: 0;
        margin-bottom: 60px;
        min-height: 0;
    }

    .case-list .case-info {
        min-height: 0;
    }
}

@media screen and (max-width:616px) {
    .moblie {
        display: block;
    }

    .pc {
        display: none;
    }

    .core-advantage .right {
        width: 100%;
    }

    .core-advantage .left {
        width: 100%;
    }

    .core-advantage {
        padding-bottom: 30px;
    }

    .core-advantage .left .left-title {
        text-align: center;
    }

    .core-advantage .left .left-info {
        text-align: center;
    }

    .core-advantage .left .free-txt {
        margin: auto;
    }
}

@media screen and (max-width:460px) {
    .qus .qus-list li {
        width: 100%;
    }
}