@media screen and (max-width: 991px) {
    #navbar-collapse {
        position: fixed;
        top: 40px;
        right: 0;
    }

    .navbar-toggle .icon-bar { background: black; }

    .nav li {
        height: 40px;
        line-height: 40px;
        width: 110px;
        background: #efefef;
        float: none;
    }

    .nav li a {
        display: block;
        font: normal 16px/40px "微软雅黑";
        text-align: center;
        margin: 0 auto;
        width: 80px;
        padding: 0;
        border-radius: 0;
        color: #323743;
    }

    .nav li a:hover { background: none; }

    .nav li a.active { border-bottom: #b73225 solid 1px; }

    .nav li a.active { color: #b73225; }

    .title1 {
        position: absolute;
        top: 80px;
        left: 20%;
        width: 10%;
    }

    .copyright {
        
        width: 100%;
        padding-top: 10px;       
    }

    .copyright-container {
        width: 100%;
        margin: 0 auto;
    }

    .copyright-item {
        width: 80%;
        text-align: center;
    }

    .copyright-title {
        height: 60px;
        border-bottom: 1px solid #d1d1d1;
        margin-bottom: 30px;
    }

    .copyright-item a {
        font: normal 13px/26px "微软雅黑";
        text-decoration: none;
        color: #808080;
    }

    .copyright-title a {
       
        font: normal 18px/40px "微软雅黑";
       
        color: #b73234;
        text-decoration: none;
    }

    .copyright-img {
        width: 100%;
        margin-bottom: 20px;
    }

    .footer {
      
        margin-top: 100px;
        font: normal 13px/30px "微软雅黑";
        text-align: center;
       
        width: 100%;
    }
}