body {
    margin: auto;
    max-width: 750px;
}

.app-main {
    margin: 1.306667rem 0;
}

img {
    display: block;
    margin: auto;
    width: 100%;
}


/* submit start */

.submit {
    padding: 30px 20px;
    background: #fff;
}
.submit h2 {
    color: #333;
    font-size: 26px;
    text-align: center;
}
.submit p {
    margin-top: 10px;
    margin-bottom: 5px;
    color: #e31b1b;
    /*font-size: 16px;*/
    text-align: center;
    font-size: .35rem;
    font-weight: bold;
}
.submit input {
    margin-top: 15px;
    padding-left: 15px;
    width: 100%;
    height: 40px;
    border: solid 1px #999;
    border-radius: 4px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.submit button {
    display: block;
    margin: auto;
    margin-top: 10px;
    width: 100%;
    height: 40px;
    color: #fff;
    border-radius: 4px;
    background: #e31b1b;
}

/* submit end */



.footer ul li {
    width: calc(100%);
}

.footer ul li img {
    /* position: absolute;
    margin: auto;
    left: 0;
    right: 0;
    top: 0.133333rem; */
    width: 0.533333rem
}