.topicinfo_bg{
    width:100%; height:100%; position: absolute; z-index: 1000; background: rgba(0,0,0,0.5);
}
.topicinfo_main{
    width: calc(100% - 20px); max-width: 600px; height: auto; position: fixed; z-index: 1100;
    background: rgb(255 255 255 / 0%); left: 50%; bottom: 50%; transform: translate(-50%, 50%);
    border-radius: 4px;
}
.topicinfo_page{
    width: auto; height: auto; margin: 10px; background: #FFF; min-height: 200px;overflow: hidden; user-select: none;
}
.topicinfo_title{
    width: auto; height: 30px; margin-top: 16px; text-align: center;
    font: bold 14px/30px "微软雅黑"; color: #333; overflow: hidden;
}
.topicinfo_content{
    width: auto; height: auto; margin-left: 6px; margin-right: 6px; margin-top: 6px;
    font: 12px/24px "微软雅黑"; color: #666; overflow: hidden; overflow-y: auto;
    margin-bottom: 16px; max-height: 400px; padding: 0 20px; position: relative;
}
.topicinfo_content::-webkit-scrollbar {/*滚动条整体样式*/
    width: 6px;     /*高宽分别对应横竖滚动条的尺寸*/
    height: 6px;
    scrollbar-arrow-color:red;

}
.topicinfo_content::-webkit-scrollbar-thumb {/*滚动条里面小方块*/
    border-radius: 5px;
    -webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
    background: rgba(0,0,0,0.2);
    scrollbar-arrow-color:red;
}
.topicinfo_content::-webkit-scrollbar-track {/*滚动条里面轨道*/
    -webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
    border-radius: 0;
    background: rgba(0,0,0,0.1);
}
.topicinfo_content p{
    padding: 0px; margin: 0px; overflow: hidden;
}
.topicinfo_content p img{

}
.topicinfo_content p img:first-child{
    margin-top: 6px;
}
.topicinfo_content p img:last-child{
    margin-bottom: 6px;
}

@media (max-width: 400px){
    .topicinfo_content img{
        width: 100%;
    }
}

.sharebox_bg{
    width:100%; height:100%; position: absolute; z-index: 1000; background: rgba(0,0,0,0.5);
}
.sharebox_main{
    width: 300px; height: auto; position: fixed; z-index: 1100;
    background: rgba(255,255,255,0.3); left: 50%; bottom: 50%; transform: translate(-50%, 50%);
    border-radius: 4px;
}
.sharebox_page{
    width: 280px; height: 280px; margin: 10px; background: #FFF; min-height: 200px;overflow: hidden; user-select: none;
}
.sharebox_image{
    width: 260px; height: 260px; overflow: hidden; margin: 10px;
}
.sharebox_image img{
    width: 260px; height: 260px;
}