header .container {
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

header .container .content-box {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

header .container .content-box .synopsis {
    text-align: center;
}

section .header-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

section .header-title p {
    display: inline-block;
}

section .content-box {
    margin-top: 30px;
}

section .content-box form {
    max-width: 70%;
    margin: 0 auto;
}

section .content-box .input-group {
    display: flex;
    align-items: center;
    border: 1px solid #E8E8E8;
    border-radius: 50px;
    padding: 10px 15px;
    margin-bottom: 30px;
}

section .content-box .input-group:last-child {
    margin-bottom: 0;
}

section .content-box .input-group img {
    padding: 10px;
    max-width: 50px;
}

section .content-box .input-group .form-control {
    border: none;
    box-shadow: none;
    border-left: 1px solid #E8E8E8;
    padding: 0 12px;
    height: 20px;
}

section .content-box .input-group .code {
    background-color: #F4F9FF;
    border-radius: 20px;
    width: 120px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00A4FF;
    cursor: pointer;
}

section .content-box .input-group input[type=radio], input[type=checkbox] {
    margin: 0;
    border-color: #CACACA;
}

section .content-box .to-pwd-logo {
    width: 100%;
    text-align: right;
    height: 62px;
    color: #666666;
    padding: 0;
    border: none;
    justify-content: flex-end;
    margin-bottom: 10px;
}

section .content-box .btn {
    width: 100%;
    height: 72px;
    border-radius: 50px;
    background: -webkit-linear-gradient(left, #00A4FF, #0F7FFF); /* Safari 5.1 - 6.0 */
    background: -o-linear-gradient(right, #00A4FF, #0F7FFF); /* Opera 11.1 - 12.0 */
    background: -moz-linear-gradient(right, #00A4FF, #0F7FFF); /* Firefox 3.6 - 15 */
    background: linear-gradient(to right, #00A4FF, #0F7FFF); /* 标准的语法 */
    color: white;
    text-align: center;
}

@media screen and (max-width: 768px) {
    section .content-box .input-group {
        margin-bottom: 15px;
        max-height: 52px;
    }

    section .content-box .input-group img {
        padding: 5px;
        max-width: 30px;
    }

    section .content-box .input-group .form-control {
        height: 18px;
    }

    section .content-box .to-pwd-logo,
    section .content-box .btn {
        max-height: 52px;
    }
}