@media (min-width: 481px) {


    .main {
        position: relative;
        margin: 0px auto;
        overflow: hidden;
        padding: 0;
        width: 980px;
    }


    .off {
        display: none;
    }

    .main .content {
        float: left;
        width: 600px;
    }

    .main .content h1 {
        font-size: 18px;
        margin-top: 20px;
    }

    .main .content .line {

        width: 100%;
    }

    .main .content .line h3 {
        margin: 10px 0;
        border: 1px solid #666;
        /* padding: 10px 0; */
        display: inline-flex;
    }

    .main .content .line h2 {
        font-size: 14px;
        background: #e9e9e9;
        border-radius: 5px;
        padding: 10px;
        margin: 20px 0;
        /* box-shadow: 0 5px 5px rgba(0, 0, 0, 0.1); */
    }

    .main .content .line h3 a {
        text-decoration: none;
        font-size: 14px;
        cursor: pointer;
        color: #000;
        padding: 5px 20px;
        display: inline-block;
        text-align: center;
        /* margin-top: 10px; */
        border-right: 1px solid #ccc;
    }

    .main .content .line h3 a:last-child {
        border-right: none;
    }


    .main .content .line h3 a.cur {
        font-weight: bold;
        color: #fff;
        background: #0265cc;
    }

    .main .content .line p {
        font-size: 12px;
        margin-top: 5px;
        line-height: 20px;
    }

    .main .content .line h4 {
        border-bottom: 1px solid #b0b0b0;
        padding: 0 0 5px 0;
        font-size: 12px;
        margin-top: 10px;
    }

    .main .content .line h5 {
        font-size: 12px;
        margin-top: 10px;
    }

    .main .content .line .ol_list {
        line-height: 20px;
        margin: 8px 0 5px 15px;
        padding: 0;
        font-size: 12px;
    }

    .main .content .line .ol_list li {
        list-style-type: decimal;
    }


    .main .content .line table {
        border: 1px solid #ccc;
        border-collapse: collapse;
        width: 100%;
        margin: 12px 0;
        font-size: 12px;
    }

    .main .content table tr th,
    td {
        border: 1px solid #ccc;
        padding: 5px 8px;
        vertical-align: top;
    }

    .main .content table tr th {
        text-align: left;
        background: #eee;
        color: #222;
    }

    .main .content .line ul {
        padding: 0;
        font-size: 12px;
        margin-top: 30px;
    }

    .main .content .line ul li {
        line-height: 20px;
    }

    .main .content .line ul li a {
        margin: 0;
        color: #003366;
    }

    .main .content .download {
        margin: 40px 0;
    }

    .main .content .download a {
        font-size: 14px;
        background: #ccc;
        padding: 10px;
        margin: 0 10px;
        color: #000;
        font-weight: bold;
    }

    .main .content .download a:hover {
        font-weight: bold;
    }

    .main .content #backtop {
        background: none;
        padding: 0;
        margin: 0;
        font-weight: normal;
        font-size: 12px;
    }

}

@media only screen and (min-width: 320px) and (max-width: 480px) {
    .main {
        position: relative;
        margin: 0px auto;
        overflow: hidden;
        padding: 0;
        width: 100%;
    }

    .off {
        display: none;
    }

    .main .content {
        padding: 0 20px;
    }

    .main .content h1 {
        font-size: 18px;
        margin-top: 100px;
    }

    .main .content .line {
        width: 100%;
    }

    .main .content .line h3 {
        margin: 10px 0;
        border-bottom: 1px solid #666;
        padding: 10px 0;
    }

    .main .content .line h2 {
        font-size: 14px;
        background: #e9e9e9;
        border-radius: 5px;
        padding: 10px;
        margin: 20px 0;
        box-shadow: 0 5px 5px rgba(0, 0, 0, 0.1);
    }

    .main .content .line h3 a {
        text-decoration: none;
        font-size: 14px;
        cursor: pointer;
        color: #000;
        padding: 5px 20px;
        display: inline-block;
        text-align: center;
        margin-top: 10px;
    }

    .main .content .line h3 a.cur {
        font-weight: bold;
        color: #fff;
        background: #0265cc;
    }

    .main .content .line p {
        font-size: 12px;
        margin-top: 5px;
        line-height: 20px;
    }

    .main .content .line h4 {
        border-bottom: 1px solid #b0b0b0;
        padding: 0 0 5px 0;
        font-size: 12px;
        margin-top: 10px;
    }

    .main .content .line h5 {
        font-size: 12px;
        margin-top: 10px;
    }

    .main .content .line .ol_list {
        line-height: 20px;
        margin: 8px 0 5px 15px;
        padding: 0;
        font-size: 12px;
    }

    .main .content .line .ol_list li {
        list-style-type: decimal;
    }


    .main .content .line table {
        border: 1px solid #ccc;
        border-collapse: collapse;
        width: 100%;
        margin: 12px 0;
        font-size: 12px;
    }

    .main .content table tr th,
    td {
        border: 1px solid #ccc;
        padding: 5px 8px;
        vertical-align: top;
    }

    .main .content table tr th {
        text-align: left;
        background: #eee;
        color: #222;
    }

    .main .content .line ul {
        padding: 0;
        font-size: 12px;
        margin-top: 30px;
    }

    .main .content .line ul li {
        line-height: 20px;
    }

    .main .content .line ul li a {
        margin: 0;
        color: #003366;
    }

    .main .content .download {
        margin: 40px 0;
    }

    .main .content .download a {
        font-size: 12px;
        background: #ccc;
        padding: 10px;
        margin: 0 10px;
        color: #000;
    }

    .main .content .download a:hover {
        font-weight: bold;
    }

    .main .content #backtop {
        background: none;
        padding: 0;
        margin: 0;
        font-weight: normal;
        font-size: 12px;
    }
}