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.img_show{opacity:1;right:0}.material_part .tablist{padding:32px 24px;border-left:4px solid transparent;width:460px;transition:all 0.3s}.material_part .margin_top{margin-top:90px}.material_part .tablist_active{background-color:white;border-left:4px solid #3A86FF;box-shadow:0 32px 48px 0 rgba(0,0,0,0.1)}.material_part .desc{padding-left:10px;line-height:36px;position:relative;font-size:18px}.material_part .desc:after{content:'';position:absolute;left:0;top:16px;background-color:darkgray;width:3px;height:3px;border-radius:3px}