* {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* 字体及色彩相关 */
.white {
    color: white;
}

.grey {
    color: #ddd;
}

.darkgray {
    color: #888;
}

.textright {
    text-align: right;
}

.textcenter {
    text-align: center;
}


a:hover {
    text-decoration-line: none;
    color: #ccc;
}

.widthMax {
    width: 1250px;
    margin: 0 auto;
}

.mg-bottom {
    margin-bottom: 20px;
}

.mg-bottom1 {
    margin-bottom: 8px;
}

.flex0 {
    display: flex;
    margin: 25px 0;
}

.flex1 {
    display: flex;
    flex-direction: column;
    flex: 0 0 30%;
}

.flex2 {
    display: flex;
    flex-direction: column;
    flex: 0 0 23%;
}

.flex3 {
    display: flex;
    flex-direction: column;
    flex: 0 0 49%;
}

.flex4 {
    display: flex;
    flex-direction: column;
    flex: 0 0 31%;
    border-top: 2px solid #9dd;
}

.flex1:hover {
    border-bottom: 2px solid #7bf;
}

.flex4:hover {
    border-top: 2px solid #7bf;
}
/* 主体 */
.title_bg {
    background: #25b;
    padding: 10px 0;
}

.logoline {
    padding: 10px 0;
    background: #fff;
}

.navi {
    background: #eee;
}

    .navi > div {
        display:flex;
        justify-content: space-around;
    }

        .navi > div > div {
            display: inline-block;
            position: relative;
        }

            .navi > div > div > a {
                display: block;
                line-height: 54px;
                /* padding: 0 58px; */
            }

            .navi > div > div:hover ul {
                display: block;
            }

            .navi > div > div ul {
                position: absolute;
                background: #ddd;
                padding-bottom: 10px;
                z-index: 999;
                width: 100%;
                min-width: 200px;
                display: none;
            }

                .navi > div > div ul a {
                    padding: 5px 15px;
                    display: block;
                    text-align: left;
                    color: #666;
                }

                    .navi > div > div ul a:hover {
                        color: #2266cc;
                        background: #ccc;
                    }

/* 底部 */
.details {
    background: #8ad;
    padding: 15px 0 65px;
}

    .details a {
        color: black;
    }

.de_title {
    font-size: 1.3rem;
    margin: 10px 0 20px;
}

.square {
    margin-top: 25px;
}

.footer {
    background: #26c;
    padding: 20px 0;
    font-size: 0.9rem;
}

.foot_row {
    margin: 10px 0;
}

/*升级浏览器代码*/
#browser-modal{width:100%;height:100%;top:0;left:0;text-align:center;color:#303233;position:fixed;z-index:9999999999;}
#browser-modal .browser-modal-cover{position:fixed;left:0;top:0;height:100%;width:100%;background-color:#111;opacity:.9;z-index:-1}
#browser-modal .browser-content{width:700px;margin-top:120px;margin-left:auto;margin-right:auto;padding-bottom:80px;padding-top:50px;background-color:#fff;border-radius:5px}
#browser-modal .browser-content .browser-dpc-logo img{height:42px;margin:45px auto 40px}
#browser-modal .browser-content .browser-text-title{text-transform:uppercase;font-size:24px}
#browser-modal .browser-content .browser-text-desc{margin-top:30px;margin-bottom:20px;font-size:14px}
#browser-modal .browser-content .browser-list{width:600px;margin:20px auto;height:130px}
#browser-modal .browser-content .browser-item{float:left;width:150px;padding-top:20px;padding-bottom:20px;margin-left:auto;margin-right:auto}
#browser-modal .browser-content .browser-item .iconfont{width:100px;height:100px;margin:0 auto;font-size:80px;line-height:80px;margin-bottom:10px;}
#browser-modal .browser-content .browser-item .iconchrome{background: url(../img/bro.png) no-repeat 0 0}
#browser-modal .browser-content .browser-item .iconfirefox{background: url(../img/bro.png) no-repeat 0 -100px}
#browser-modal .browser-content .browser-item .iconopera{background: url(../img/bro.png) no-repeat 0 -200px}
#browser-modal .browser-content .browser-item .iconEdge{background: url(../img/bro.png) no-repeat 0 -300px}
#browser-modal .browser-content .browser-item a{cursor:pointer;display:block}
#browser-modal .browser-content .browser-item a img{display:block;margin:0 auto;max-width:100px;width:100px;height:100px}
#browser-modal .browser-content .browser-item a h4{text-align:center;margin-top:20px;font-size:18px;font-weight:700}