.main {
    width: 1400px;
    margin: 40px auto;
    display: flex;
    justify-content: space-between;
    min-height: 450px;
}

.main .left {
    width: 240px;
    margin-bottom: 20px;
}

.main .left .title {
    height: 50px;
    line-height: 50px;
    color: #fff;
    letter-spacing: 3px;
    font-size: 20px;
    background: url(../imagen/gk2.png) no-repeat;
    padding-left: 30px;
}

.main .left ul li {
    height: 55px;
    line-height: 55px;
    padding-left: 20px;
    border-bottom: 1px solid #F0F0F0;
    border-left: 10px solid #9B0000;
    position: relative;
    font-size: 16px;
}

.main .left ul li a {
    color: #1A1A1A;
}

.main .left ul li a:hover {
    color: #9B0000;
}

.main .left ul .selected a {
    color: #9B0000;
    border-left: 3px solid #fff;
}

.main .left ul .selected span {
    display: inline-block;
    width: 3px;
    height: 40px;
    position: absolute;
    left: -3px;
    top: 8px;
    background: #fff;
}

.main .right {
    width: 1060px;
    margin-left: 40px;
}

.main .right .title {
    text-align: center;
    color: #1A1A1A;
    letter-spacing: 3px;
    font-size: 20px;
    font-weight: bold;
}

.main .right .info1 {
    color: #1A1A1A;
    font-size: 14px;
    text-align: center;
    margin: 20px 0 5px;
}

.main .right .info2 {
    color: #999999;
    font-size: 14px;
    text-align: center;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid #DBDBDB;
}

.main .right .content {
    font-size: 16px;
    margin-bottom: 80px;
}

.main .right .content img {
    max-width: 100%;
}

.footer {
    margin-top: 180px;
}

@media only screen and (max-width: 1550px) {
    .main {
        width: 1200px;
    }
}

@media only screen and (max-width: 1250px) {
    .main {
        width: 1000px;
    }
}

@media only screen and (max-width:980px) {
    .main {
        width: 95%;
        display: block;
    }

    .main .left {
        width: 100%;
        margin-bottom: 20px;
    }

    .main .left .title {
        font-size: 20px;
    }

    .main .left ul li{
        font-size: 18px;
    }

    .main .right {
        width: 100%;
        margin-left: 0;
    }

    .main .right .title {
        font-size: 18px;
    }

    .main .right .info1 {
        font-size: 14px;
    }

    .main .right .info2 {
        font-size: 14px;
    }

    .main .right .content {
        font-size: 14px !important;
    }

    .main .right .content img {
        width: 100%;
    }
}