body,html{
    padding: 0px;
    margin: 0px;
    border: 0px;
    height: 100%;
    min-width: 1200px;
}

/*container*/
.flex-container a:hover{text-decoration: none}
.flex-container a{text-decoration: none}
.guide_QA{
    margin: 0.30px auto;
}
.flex-container {
    display: -webkit-flex;display: flex;
    flex-direction: row;
    -webkit-flex-direction: row;
    max-width: 100%;
    height: 100%;
    background-image: url("../images/index02/tlbgimg3.jpg");
    background-position: center;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    background-size: cover;
    -o-background-size: cover;
}
.flex-item {
    /*background: #3b444b;background:rgba(255,255,255,0.2);*/
    width: 25%;
    height: 100%;
    text-align: center;
    /*弹性盒模型*/
    display:flex;
    /*!*主轴居中对齐*!*/
    justify-content: center;
    /*侧轴居中对齐(垂直居中)*/
    align-items: center;
}
.flex-item-child{
    width: 100%;height: 0;padding-bottom: 15%;

}
.flex-item-child .font01{
    width: 245px;height: 70px;margin-left: auto;margin-right: auto;
}
.flex-item-child .font02{
    text-shadow: 4px 4px 10px #000000;
    color: white;text-align: center
}

/*con_footer*/
#bottomNav{
    background: #000000;
    background:rgba(0,0,0,0.5);
    /*background-color:rgba(255,255,255,0.5);*/
    /*background:#0009;!*CSS Hack,只能对ie9以下浏览器ie6,ie7,ie8有效，否侧ie10,FF,Cherome会失去透明效果*!*/
    filter:Alpha(opacity=60);/*只对ie7,ie8有效*/
    text-align: center;
    /*height: 20px;*/
    font-size: 14px;
    padding: 7px 0;
    color: #ffffff;
}
.navbar-fixed-bottom,.navbar-fixed-top{
    position: fixed;
    right: 0;
    left: 0;
    z-index: 1030;
}
.navbar-fixed-bottom {
    bottom: 0;
    margin-bottom: 0;
    border-width: 1px 0 0;
}



/*mouseover*/
.addopacity{
    background: #3b444b;
    background:rgba(255,255,255,0.2);
    /*background-color:rgba(255,255,255,0.5);*/
    /*background:#0009;!*CSS Hack,只能对ie9以下浏览器ie6,ie7,ie8有效，否侧ie10,FF,Cherome会失去透明效果*!*/
    filter:Alpha(opacity=60);/*只对ie7,ie8有效*/
}
.removeopacity{
    background: #3b444b;
    background:rgba(255,255,255,0);
    /*background-color:rgba(255,255,255,0.5);*/
    /*background:#0009;!*CSS Hack,只能对ie9以下浏览器ie6,ie7,ie8有效，否侧ie10,FF,Cherome会失去透明效果*!*/
    filter:Alpha(opacity=60);/*只对ie7,ie8有效*/
}