@media (min-width: 768px) {
    .com-head {
        width: 1200px;
        height: 88px;
        margin: 0 auto;
        display: -webkit-box; /* 老版本语法: Safari, iOS, Android browser, older WebKit browsers. */
        display: -moz-box; /* 老版本语法: Firefox (buggy) */
        display: -ms-flexbox; /* 混合版本语法: IE 10 */
        display: -webkit-flex; /* 新版本语法: Chrome 21+ */
        display: flex; /* 新版本语法: Opera 12.1, Firefox 22+ */
        /*-webkit-box-pack: center;*/
        -webkit-justify-content: space-between;
        justify-content: space-between;
        -webkit-box-align: center;
        -webkit-align-items: center;
        align-items: center;
    }
    .com-logo {
        width: 220px;
        cursor: pointer;
    }
    .com-logo-img {
        width: 100%;
        display: block;
    }
    .com-sub {
        width: 800px;
        display: -webkit-box; /* 老版本语法: Safari, iOS, Android browser, older WebKit browsers. */
        display: -moz-box; /* 老版本语法: Firefox (buggy) */
        display: -ms-flexbox; /* 混合版本语法: IE 10 */
        display: -webkit-flex; /* 新版本语法: Chrome 21+ */
        display: flex; /* 新版本语法: Opera 12.1, Firefox 22+ */
        /*-webkit-box-pack: center;*/
        -webkit-justify-content: space-between;
        justify-content: space-between;
        -webkit-box-align: center;
        -webkit-align-items: center;
        align-items: center;
    }
    .com-sub-tab {
        font-weight: bold;
        font-size: 16px;
        color: #989898;
        text-align: center;
        line-height: 1.4;
        padding: 8px 2px;
        border-bottom: 2px solid transparent;
        cursor: pointer;
    }
    .com-sub-tab-active {
        font-weight: 600;
        color: #7b26f9;
        border-bottom: 2px solid #7b26f9;
    }
    .com-icon {
        display: none;
    }
}

@media (max-width: 768px) {
    .com-icon {
        width: .6rem;
        position: absolute;
        z-index: 101;
        right: .5rem;
        top: .78rem;
    }
    .com-sub {
        display: none;
        position: absolute;
        z-index: 100;
        top: 0;
        background: #FFFFFF;
        width: 100%;
        padding-top: 2.16rem;
        box-shadow: 0 4px 34px 0 rgba(0,0,0,0.10);
    }
    .com-logo-img {
        width: 3.42rem;
        position: absolute;
        z-index: 101;
        padding-left: .56rem;
        padding-top:  .53rem;
    }
    .com-sub-tab {
        color: #989898;
        font-size: .42rem;
        padding: 0 0 .72rem .56rem;
    }
    .com-sub-tab-active {
        color: #00B977;
    }
    .com-logo {
        background: #FFFFFF;
        height: 1.78rem;
        width: 100%;
    }
}