.banner-box {
    height: 600px;
    background-size: cover;
}

.dormitory-banner {
    background: url("../images/autoCar/auto_car_bg.png");
    background-size: cover;
}


.about-title {
    font-size: 40px;
    color: #fff;
    padding-top: 200px;
}

.banner-title {
    font-size: 48px;
    font-weight: 600;
    color: #FFFFFF;
    letter-spacing: 1px;
    padding-top: 189px;
    /*margin-top: 189px;*/
}

.banner-text-dec {
    font-size: 30px;
    font-weight: 300;
    color: #FFFFFF;
    line-height: 42px;
    margin-top: 16px;
}

.banner-btn {
    display: block;
    width: 160px;
    height: 48px;
    background: linear-gradient(270deg, #23A0FF 0%, #156CFD 100%);
    box-shadow: 0px 4px 16px 0px rgba(0, 98, 208, 0.5);
    border-radius: 24px;
    line-height: 48px;
    color: #fff;
    text-align: center;
    font-size: 16px;
    margin-top: 48px;
    transition: all linear 0.2s;
    margin-left: 10px;
}

.banner-btn:hover {
    box-shadow: 0px 3px 12px 0 #23A0FF;
}

.difficulty-box {
    height: 728px;
    background: #fdfdfe;
}

.difficulty-box-title {
    font-size: 32px;
    font-weight: 600;
    color: #202328;
    line-height: 45px;
    text-align: center;
    margin-top: 80px;
}

.difficulty-box-blue-img {
    width: 174px;
    height: 18px;
    background: url("../images/officialCarSchemes/blue-points.png") no-repeat;
    background-size: 100% 100%;
    margin: 24px auto;
}

.difficulty-item-box {
    margin-top: 56px;
    height: 440px;
    padding: 0 10px;
}

.difficulty-item {
    width: 380px;
    height: 382px;
    border-radius: 5px;
    background-color: #fff;
    box-shadow: 0 0 12px 0 rgba(162, 171, 180, 0.53);
    transition: all 0.28s ease;
}
.difficulty-item:hover {
    transform: scale(1.03);
}
.difficulty-item.mr {
    margin-right: 20px;
}
.difficulty-item-img.t1 {
    width: 231px;
    height: 140px;
    margin-top: 37px;
    margin-left: 75px;
    display: block;
    margin-bottom: 23px;
}
.difficulty-item-img.t2 {
    width: 193px;
    height: 150px;
    margin-top: 36px;
    margin-left: 94px;
    margin-bottom: 14px;
}

.difficulty-item-img.t3 {
    width: 230px;
    height: 162px;
    margin-top: 20px;
    margin-left: 75px;
    margin-bottom: 18px;
}

.difficulty-item-title {
    font-size: 20px;
    font-weight: bold;
    color: #202328;
    line-height: 40px;
    text-align: center;
    font-family: PingFangSC-Medium, PingFang SC;
}

.difficulty-item-dec {
    font-size: 16px;
    font-weight: 400;
    color: #202328;
    line-height: 22px;
    opacity: 0.75;
    text-align: center;
    width: 250px;
    margin: 10px auto 0;
}

.difficulty-three .difficulty-item {
    width: 370px;
}

.difficulty-three .difficulty-item-dec, .difficulty-three .difficulty-item-title {
    width: 288px;
}
.dec_1,
.dec_3 {
    height: 560px;
    background: #F5FAFF;
}
.dec_2,
.dec_4 {
    height: 560px;
    background: #fff;
}

.mt-120 {
    margin-top: 120px;
}
.mt-122 {
    margin-top: 122px;
}
.mt-138 {
    margin-top: 138px;
}


.dec_img {
    margin-top: 80px;
    width: 670px;
    height: 400px;
    object-fit: contain;
}
.dec_prod {
    width: 456px;
    height: 100%;
    overflow: hidden;
}
.left_ani {
    transition: all 1.2s ease;
    transform: translate(-120%, 0);
    opacity: 0.1;
}
.right_ani {
    transition: all 1.2s ease;
    transform: translate(120%, 0);
    opacity: 0.1;
}
.left_ani.show,
.right_ani.show {
    opacity: 1;
    transform: translate(0, 0);
}
.dec-title {
    height: 45px;
    font-size: 36px;
    font-weight: 600;
    color: #202328;
    line-height: 45px;
}
.second-title {
    font-size: 18px;
    color: #000000;
    margin-top: 10px;
    line-height: 28px;
}


.blue-squre {
    width: 120px;
    height: 6px;
    margin-top: 10px;
    background: url('../images/blue-line.png') no-repeat;
    background-size: 100% 100%;
    /*background: linear-gradient(270deg, #2AB0FF 0%, #288DFF 100%);*/
    /*margin-top: 10px;*/
}

.third_title {
    font-weight: bold;
    color: #000;
    font-size: 18px;
    line-height: 28px;
    margin-top: 10px;
}
.third_title_dec {
    font-size: 16px;
    color: #585A5E;
}

.dec-btn {
    width: 150px;
    height: 48px;
    background: linear-gradient(270deg, #2AB0FF 0%, #288DFF 100%);
    box-shadow: 0px 2px 10px 0px rgba(0, 127, 255, 0.4);
    border-radius: 24px;
    line-height: 48px;
    margin-top: 30px;
    text-align: center;
    color: #fff;
    transition: all linear 0.2s;
    margin-left: 10px;
}

.dec-btn:hover {
    box-shadow: 0px 3px 12px 0 #23A0FF;
}