* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
@media screen and (min-width: 0px) and (max-width: 1000px) {
    body {
        background-color: #f4f9ff;
        max-width: 1024px;
        background: url(../Kefu-Service/backimg.png) top center;
        background-repeat: no-repeat;
        background-size: cover;
        background-attachment: fixed;
}

    
 
 

header {
    width: 100%;
    height: 12vw;
    background-color: #ffffff;
    position: fixed;
    left: 0;
    top: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 1024px;
    margin: auto;
    box-shadow: 0 2px 10px #b3c9f4;
}
.headerLogo {
     display:block;
}
.headerLogo img {
    max-width: 100%;
    height: auto;
}
.headerLogo a {
    position: absolute;
    background: url(../Kefu-Service/r.png) center center no-repeat;
    width: 45px;
    height: 45px;
    top: 0;
    background-size: 26%;

}
.textLogo {
     display:block;

}
.f {
     display:none;

}
.top {
     display:none;

}
.hover-show {
     display:none;

}
.topBackground {
    max-width: 1024px;
    height: 100%;
    margin-top: 3%;

    margin: auto;
    box-sizing: border-box;
    padding-bottom: 5vw;
}

.textLogo {
    display: flex;
    flex-direction: column;
    align-items: center;
        margin-top: 51px;
}

.textLogo img {
    width: 100%;
    height: auto;
}

.buttonAll {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    margin-top: -4vw;
}

.buttonAll button {
    background-color: transparent;
    border: none;
    outline: none;
    cursor: pointer;
}

.buttonAll img {
    width: 60%;
    height: auto;
}

.bottomBanner {
     display:block;

    margin-top: 2vw;
    display: flex;
    justify-content: center;
}

.bottomBanner img {
    width: 93%;
    height: auto;
    margin-top: -2vw;
    max-width: 714px;
}
}


@media screen and (min-height:737px) and (max-width:539px) {
    .topBackground {
        margin-top: 6vw;
    }

    .buttonAll button {
        margin-top: 4vw;
    }

    .bottomBanner {
        margin-top: 6vw;
    }
}

@media screen and (min-width: 1000px) and (max-width: 1920px) {
    body {
        background: url(../Kefu-Service/big.png) top center;
        background-repeat: no-repeat;
        background-size: cover;
        background-attachment: fixed;
     

    }
    .headerLogo {
            display:none;
    }
    .textLogo {
            display:none;

    }
    .bottomBanner {
            display:none;

    }
    .hover-show {
            display:none;

    }
    .buttonAll {
       
        width: 1005px;
        height: 435px;
        margin: 0 auto;
    }
    .buttonAll div {
        float: left;
        margin-right: 35px;
    
    }
    .buttonAll div a {
        float: left;

    }
.buttonOne a button:hover .show{ display: none; }
.buttonOne a button:hover .hover-show{ display: block; }
.buttonTwo a button:hover .show{ display: none; }
.buttonTwo a button:hover .hover-show{ display: block; }
.buttonThree a button:hover .show{ display: none; }
.buttonThree a button:hover .hover-show{ display: block; }
.buttonFour a button:hover .show{ display: none; }
.buttonFour a button:hover .hover-show{ display: block; }
.buttonFive a button:hover .show{ display: none; }
.buttonFive a button:hover .hover-show{ display: block; }
.buttonSix a button:hover .show{ display: none; }
.buttonSix a button:hover .hover-show{ display: block; }
.buttonseven a button:hover .show{ display: none; }
.buttonseven a button:hover .hover-show{ display: block; }
.buttoneight a button:hover .show{ display: none; }
.buttoneight a button:hover .hover-show{ display: block; }


    .buttonAll div button {
            border: none;
                margin-bottom: 30px;
                cursor: pointer;
    }
    .f {
     display:block;
     width: 805px;
        height: 58px;
        margin: 0 auto;
    }
    .top {
     display:block;
     width: 1000px;
        height: 430px;
        margin: 0 auto;
    }
    .top img {
        display: block;
            width: 93%;
            height: 110%;

    }
}