html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    font-size: 62.5%;
    position: relative;
}

body {
    background: url(./images/bg.png) no-repeat center 0px;
    background-size: cover;
}

p {
    margin: 0;
}

button {
    margin: 0;
    padding: 0;
    border: none;
    outline: none;
    background: none;
}

.section {
    width: 32rem;
    height: 32rem;
    border-radius: 1rem;
    background-color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -16rem;
    margin-left: -16rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.title {
    font-size: 2.5rem;
    color: #3c7fff;
    margin-bottom: 2rem;
}

.section input {
    background: none;
    outline: none;
    border: 0px;
    font-size: 1.5rem;
    width: 100%;
    height: 100%;
}

.line {
    width: 60%;
    margin: 0 auto 1rem auto;
}

.line2 {
    width: 30%;
}

.input-wrap {
    height: 3rem;
    line-height: 3rem;
    padding: 0 1.5rem;
    border-radius: 5px;
    background-color: #f7f5fb;
}

.flex {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    width: 60%;
    padding: 0;
    margin: 0 auto 1rem auto;
}

.submitbtn {
    width: 60%;
    height: 3rem;
    border-radius: 5px;
    background-color: #3296ff;
    box-shadow: 0 0 5px #3296ff;
    color: #fff;
    font-size: 1.5rem;
}

/* 验证码样式 */
.code {
    font-family: Arial;
    font-style: italic;
    color: blue;
    font-size: 30px;
    border: 0;
    padding: 2px 3px;
    letter-spacing: 3px;
    font-weight: bolder;
    float: left;
    cursor: pointer;
    width: 40%;
    height: 100%;
    line-height: 3rem;
    text-align: center;
    vertical-align: middle;
    background-color: #D8B7E3;
}
/* 页脚 */
.footer {
    width: 100%;
    font-size: 1.4rem;
    color: #333;
    text-align: center;
    position: absolute;
    bottom: 1rem;
    left: 0;
}