.clean-service-area .section-sub-title {
    position: relative;
    display: inline-block;
}

.clean-service-area .section-sub-title::before {
    position: absolute;
    content: "";
    height: 3px;
    width: 50px;
    background: var(--color-primary);
    left: -54px;
    top: 8px;
}

.clean-service-area .section-sub-title::after {
    position: absolute;
    content: "";
    height: 3px;
    width: 50px;
    background: var(--color-primary);
    right: -56px;
    top: 8px;
}

.clean-service-area .section-sub-title h4 {
    font-size: 17px;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 19px;
    font-family: var(--title-font-family);
}

.clean-service-area .section-main-title {
    margin-bottom: 13px;
}

.clean-service-area .section-main-title h2 {
    font-size: 44px;
    color: #fff;
    font-weight: 600;
    font-family: var(--title-font-family);
}

.clean-service-area .section-discription {
    width: 44%;
    margin: auto;
    margin-bottom: 60px;
}

.clean-service-area .section-discription p {
    color: #fff;
    font-weight: 400;
    opacity: 0.800;
    font-size: 16px;
    line-height: 24px;
    word-wrap: break-word;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    /* 控制显示的行数 */
    -webkit-box-orient: vertical;
}

.clean-service-area {
    padding: 90px 0 60px;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

.clean-service-area .service-single-box {
    padding: 34px 33px 27px;
    position: relative;
    z-index: 1;
    transition: .5s;
    margin-bottom: 40px;
    border: 1px solid var(--color-primary);
    background: var(--color-primary);
}

.clean-service-area .service-single-box:hover {
    /*border: 1px solid #ffffff;*/
}

.clean-service-area .service-single-box::before {
    position: absolute;
    content: "";
    height: 100%;
    width: 0;
    top: 0;
    left: 0;
    background: #fff;
    z-index: -1;
    transition: .5s;
}

.clean-service-area .service-single-box:hover:before {
    width: 100%;
}

.clean-service-area .service-content a {
    display: flex;
    font-size: 22px;
    color: #ffffff;
    font-weight: 500;
    text-decoration: none;
    justify-content: space-between;
    align-items: center;
    min-height: 3em;
    transition: .5s;
}

.clean-service-area .service-single-box:hover .service-content a {
    color: var(--color-primary);
}

.clean-service-area .service-content a i {
    border: 1px solid #ffffff;
    /*background: var(--color-primary);*/
    height: 40px;
    width: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 100%;
    margin-top: -8px;
    transition: .5s;
    flex-shrink: 0;
    margin-left: 3px;
}

.clean-service-area .service-single-box:hover .service-content a i {
    background: #fff;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.clean-service-area .clean-home-btn a {
    display: inline-block;
    text-decoration: none;
    font-size: 18px;
    font-weight: 400;
    padding: 15px 30px;
    position: relative;
    z-index: 1;
    overflow: hidden;
    transition: .5s;
}
.clean-service-area .clean-home-btn.service a {
    border-radius: var(--button-radius);
    padding: 18px 30px;
    color: #fff;
    background-color: var(--color-primary);
}
.clean-service-area .clean-home-btn a:hover{
    color: #ffff;
}
.clean-service-area .clean-home-btn a::before{
    position: absolute;
    content: "";
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    background:var(--color-primary);
    z-index: -1;
    transition: .5s;
}
.clean-service-area .clean-home-btn a:hover::before{
    transform: rotateX(90deg);
}
.clean-service-area .clean-home-btn a::after {
    position: absolute;
    content: "";
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    background: var(--color-primary);
    z-index: -1;
    transition: .5s;
}
.clean-service-area .clean-home-btn a:hover::after{
    transform: rotateY(90deg);
}



.clean-service-area .clean-home-btn.service {
    margin-top: 10px;
}

.clean-service-area .clean-home-btn.service a:hover {
    background-color: var(--btn-hover);
}

@media (max-width: 991px) {
    .clean-service-area {
        padding: 80px 0 76px;
    }

    .clean-service-area .section-main-title h2 {
        font-size: 40px;
    }

    .section-discription {
        width: 90%;
    }

    .clean-service-area .service-single-box {
        padding: 30px 33px 23px;
    }

    .clean-service-area .service-content a {
        font-size: 20px;
    }

}

@media (max-width: 767px) {
    .clean-service-area .service-area {
        padding: 80px 0 75px;
    }

    .clean-service-area .section-main-title h2 {
        font-size: 40px;
    }

    .clean-service-area .section-discription {
        width: 100%;
    }
    .clean-service-area .service-content a {
        min-height: auto;
    }
    .clean-service-area .service-single-box {
        margin-bottom: 20px;
    }
}

@media only screen and (min-width: 480px) and (max-width: 599px) {
    .clean-service-area .section-main-title h2 {
        font-size: 40px;
    }

    .clean-service-area .section-discription {
        width: 100%;
    }
}

@media only screen and (min-width: 320px) and (max-width: 599px) {

    .clean-service-area .section-main-title h2 {
        font-size: 26px;
    }

    .clean-service-area .section-discription.service p {
        font-size: 14px;
    }

    .clean-service-area {
        padding: 80px 0 75px;
    }

    .clean-service-area .service-single-box {
        padding: 28px 33px 20px;
    }

    .clean-service-area .section-discription {
        width: 100%;
    }

    .clean-service-area .service-content a {
        font-size: 20px;
    }

    .clean-service-area .service-content a i {
        height: 35px;
        width: 35px;
        line-height: 35px;
    }

    .clean-service-area .clean-home-btn.service a {
        padding: 12px 22px;
    }
}