.margin-top-100{
    margin-top: 100px;
}
.margin-top-20{
    margin-top: 20px;
}
.margin-top-150{
    margin-top: 150px;
}
.mainBox{
    background-image: url('../images/xing.png');
    background-position: top center;
    padding-top: 100px;
}
.carWindowBanner{
    width: 100%;
    background-color: #ccc;
    position: relative;
}
.allProduct_menu{
    width: 100%;
    background-color: rgba(0,0,0,0.64);
    position: absolute;
    bottom: 0;
    left: 0;
}
.whiteBorder{
    border: 1px solid #fff;
    box-sizing: border-box;
}

/* 屏幕大于768 */
@media screen and (min-width:768px){
    .allProduct_menuName{
        color: #fff;
        font-size: 18px;
        padding: 6px 14px;
        background-image: url('../images/textDecorate_2.png');
        background-repeat: no-repeat;
        background-size: 100% 100%;
    }
    .allProduct_menuBox{
        width: 100%;
        height: 73px;
        line-height: 73px;
        text-align: center;
        cursor: pointer;
        display: block;
    }
    .carTop{
        margin-top: 150px;
    }
    .QiList_title{
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.6);
        position: absolute;
        top: 0;
        left: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    .QiList_img{
        width: 100%; 
        height: 258px; 
        background-color: #fff;
        position: relative;
        display: block;
        margin-bottom: 30px;
    }
    .Qi_name{
        color: #fff;
        padding: 0 20px;
        height: 36px;
        line-height: 36px;
        text-align: center;
        font-size: 20px;
    }
    .QiList_tips{
        color: #fff;
        font-size: 16px;
        opacity: 0.95;
        font-family: 'STXihei';
        margin-top: 20px;
        line-height: 25px;
        letter-spacing: 1px;
        margin-bottom: 40px;
    }
    .small-margin-top-20{
        margin-top: 20px;
    }
    .flexBox-3{
        display: flex;
        justify-content: center;
    }
}
/* 屏幕小于768 */
@media screen and (max-width:768px){
    .margin-top-150{
        margin-top: 100px;
    }
    .allProduct_menuName{
        color: #fff;
        font-size: 12px;
        padding: 6px 14px;
        background-image: url('../images/textDecorate_2.png');
        background-repeat: no-repeat;
        background-size: 100% 100%;
    }
    .allProduct_menuBox{
        width: 100%;
        text-align: center;
        cursor: pointer;
        padding: 12px 0;
        display: block;
    }
    .carTop{
        margin-top: 10px;
        margin-bottom: 40px;
    }
    .QiList > div{
        margin-bottom: 15px;
    }
    .QiList_title{
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.66);
        position: absolute;
        top: 0;
        left: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    .QiList_img{
        width: 100%; 
        height: 160px; 
        background-color: #fff;
        position: relative;
        display: block;
    }
    .Qi_name{
        color: #fff;
        padding: 0 20px;
        height: 36px;
        line-height: 36px;
        text-align: center;
        font-size: 20px;
        display: block;
    }
    .QiList_tips{
        color: #fff;
        font-size: 16px;
        opacity: 0.95;
        font-family: 'STXihei';
        margin-top: 20px;
        margin-bottom: 40px;
    }
    .small-margin-top-20{
        margin-top: 0;
    }
}

.title_tips{
    font-size: 25px;
    color: #fff;
    font-weight: bold;
    text-align: center;
    letter-spacing: 1px;
}
.text_p{
    font-size: 16px;
    color: #fff;
    font-family: 'STXihei';
    opacity: 0.95;
    line-height: 25px;
    margin-top: 60px;
}
.advantageTitle{
    font-size: 18px;
    color: #fff;
    letter-spacing: 1px;
    margin-top: 30px;
}
.fiveText{
    font-size: 15px;
    color: #fff;
    opacity: 0.85;
    letter-spacing: 1px;
    margin-top: 8px;
}

.img_bg_1{
    background-image: url('../images/color_img_1.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}
.img_bg_2{
    background-image: url('../images/color_img_2.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}
.img_bg_3{
    background-image: url('../images/color_img_3.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}
.img_bg_4{
    background-image: url('../images/color_img_4.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}
.img_bg_5{
    background-image: url('../images/color_img_5.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}
.img_bg_6{
    background-image: url('../images/color_img_6.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}
.img_bg_7{
    background-image: url('../images/color_img_7.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}