.oldhouse{
    width: 100%;
    background-color: #303030;
}

.oldhouse_banner{
    width: 100%;
}

.oldhouse_one{
    width: 100%;
    margin-top: -125px;
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: flex-end;
}

.oldhouse_onebox{
    width: 1200px;
    padding: 0px 40px 112px 40px;
    background-color: #fff;
}

.oldhouse_one_kongbai{
    width: calc((100% - 1200px) / 2);
    background-color: #fff;
    position: relative;
}
.oldhouse_one_kongbai::after{
    content: "";
    background-color: #fff;
    width: 4px;
    height: 100%;
    position: absolute;
    top: 0;
    left: -2px;
    z-index: -1;
}

.oldhouse_one_kr{
    width: 1000px;
    margin-top: -28px;
    margin-bottom: 67px;
}

.oldhouse_one_title{
    margin-bottom: 92px;
}

.oldhouse_swiperbox{
    width: 100%;
    padding-left: 110px;
    display: flex;
    justify-content: center;
    position: relative;
}

.oldhouse_swiper{
    width: 1000px;
}

.swiper_one_item{
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.swiper_one_img{
    width: 100%;
}

.swiper_right_a{
    width: 28px;
    cursor: pointer;
    position: absolute;
    top: 50%;
    right: -77px;
    transform: translateY(-50%);
    z-index: 9;
}

.swiper_left_a{
    width: 28px;
    cursor: pointer;
    position: absolute;
    top: 50%;
    left: 32px;
    transform: translateY(-50%);
    z-index: 9;
}

.oldhouse_two{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.oldhouse_twobox{
    position: relative;
    padding-top: 70px;
}

.oldhouse_two_bj{
    width: 1200px;
    height: 401px;
}

.oldhouse_two_from{
    width: 426px;
    height: 316px;
    padding: 48px;
    position: absolute;
    top: 117px;
    right: 110px;
    z-index: 9;
}

.oldhouse_two_name{
    width: 100%;
    line-height: 55px;
    padding: 0px 12px;
    border: none;
    outline: none;
    border-radius: 2px;
    font-size: 16px;
    background-color: #fff;
    margin-bottom: 25px;
}

.oldhouse_two_mobile{
    width: 100%;
    line-height: 55px;
    padding: 0px 12px;
    border: none;
    outline: none;
    border-radius: 2px;
    font-size: 16px;
    background-color: #fff;
    margin-bottom: 25px;
}

.oldhouse_two_btn{
    width: 100%;
    cursor: pointer;
    transition: all 0.15s;
}

.oldhouse_two_btn:hover{
    opacity: 0.85;
}

.oldhouse_three{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.oldhouse_three_img{
    width: 100%;
    min-width: 1200px;
}

.oldhouse_four{
    width: 100%;
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: flex-start;
}

.oldhouse_fourbox{
    width: 1200px;
    padding: 87px 0px;
    background-color: #fff;
}

.oldhouse_four_kongbai{
    width: calc((100% - 1200px) / 2);
    background-color: #fff;
    position: relative;
}
.oldhouse_four_kongbai::after{
    content: "";
    background-color: #fff;
    width: 4px;
    height: 100%;
    position: absolute;
    top: 0;
    right: -2px;
    z-index: -1;
}

.oldhouse_four_title{
    width: 100%;
    padding-left: 212px;
}

.oldhouse_four_content{
    width: 100%;
    margin-top: 57px;
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
}

.oldhouse_four_swiper{
    width: 900px;
}

.swiper_two_item{
    width: 292px;
}

.swiper_two_img{
    width: 100%;
}

.swiper_right_b{
    cursor: pointer;
    position: absolute;
    top: 50%;
    right: 72px;
    transform: translateY(-50%);
    z-index: 9;
}

.swiper_left_b{
    cursor: pointer;
    position: absolute;
    top: 50%;
    left: 72px;
    transform: translateY(-50%);
    z-index: 9;
}

.oldhouse_five{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.oldhouse_five_img{
    width: 100%;
    min-width: 1200px;
}

.oldhouse_six_img{
    width: 100%;
    min-width: 1200px;
}

.oldhouse_seven{
    width: 100%;
    position: relative;
}

.oldhouse_seven_img{
    width: 100%;
    min-width: 1200px;
}

.oldhouse_seven_content{
    width: 400px;
    position: absolute;
    top: 50%;
    left: 52%;
    z-index: 9;
    transform: translateY(-50%);
}

.oldhouse_seven_item{
    width: 100%;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    position: relative;
}

.oldhouse_seven_item_title{
    width: 80px;
    font-size: 16px;
    color: #333;
}

.oldhouse_seven_item>input{
    flex: 1;
    line-height: 52px;
    padding: 0px 12px;
    border: none;
    outline: none;
    border-radius: 2px;
    background-color: #fff;
}

.oldhouse_seven_item_btn{
    flex: 1;
    line-height: 52px;
    color: #fff;
    background-color: #333;
    border-radius: 2px;
    font-size: 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s;
}

.oldhouse_seven_item_btn:hover{
    opacity: 0.85;
}