* {
    margin: 0;
    padding: 0;
}

body {
    font-size: 12px;
    font-family: -apple-system-font, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: inherit;
    background: #ccc;
}

.survey {
    padding-top: 20px;
    width: 60%;
    box-shadow: 5px 5px 5px #999;
    width: 700px;
    margin: auto;
    background: #fff;
    padding: 0 20px 0 20px;

}

img {
    max-width: 100%
}

.center_img img {
    width: 100%
}

.footer_img {
    width: 15% !important;
}

h1 {
    line-height: 1.4;
    font-weight: 400;
    font-size: 24px;
    border-bottom: 1px solid #e7e7eb;
    padding-bottom: 10px;
}

h4 {
    font-weight: 500;
    font-size: 16px;
    color: red;
    line-height: 40px;
    width: 100%;
    height: 40px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

img {
}

p {
    line-height: 30px;
    font-size: 14px
}

.top_p {
    height: 40px;
    line-height: 40px;
}

.top_p em {
    font-size: 16px;
    font-style: normal;
    color: #8c8c8c;
}

.top_p .ren_s {
    color: #607fa6;
    font-size: 16px;
}

.footer {
    width: 740px;
    height: 55px;
    line-height: 35px;
    background: #f3f3f3;
    margin: auto;
}

.footer img {
    padding-top: 5px;
}

.footer .foot_s {
    font-size: 12px;
    color: #999999;
    float: right;
    margin-top: 10px;
    margin-right: 10px;
}

@media screen and (min-width: 1024px) {
    .survey {
        width: 700px;
        margin: auto;
        background: #fff;
        padding: 0 20px 0 20px;
    }

    .img {
        max-width: 100%
    }

    .footer {
        width: 740px;
        height: 55px;
        line-height: 35px;
        background: #f3f3f3;
        margin: auto;
    }

    .footer img {
        padding-top: 5px;
        width: 15% !important;
    }
}

@media screen and (max-width: 500px) {
    .survey {
        width: 90%;
        margin: auto;
        padding: 0 20px 0 16px;

    }

    .footer {
        width: 100%;
        height: 55px;
        line-height: 35px;
        background: #f3f3f3;
    }

    img {
        max-width: 100%
    }

    .footer_img {
        width: 26% !important;
        margin-top: 5px;
        margin-left: 3%;
    }
}