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ease-in-out;transition:all .3s ease-in-out}.banner2 .back-top i{width:5px;background-size:5px auto}.banner2 .back-top span{color:#000;font-size:.8125rem;margin-left:9px;line-height:1;position:relative;top:4px;vertical-align:middle}}@media screen and (min-width:1200px) and (max-width:1600px){.container.intro-container{width:75%;max-width:1224px}.in_content .bread .in-tip{width:22px;height:22px;font-size:.875rem;line-height:22px}.in_content .bread .in-tip+span{font-size:1.1875rem;color:#000;margin-left:8px;line-height:1.5625rem;vertical-align:middle}.in_content .title{font-size:1.75rem;color:#000;margin-top:36px;line-height:1.2}.in_content .desc{font-size:.875rem;color:#6d6d6d;line-height:2.1;margin-top:32px;text-align:justify}.read-more{width:12px}.intro__block.block-1 .y-words{right:-60px}.intro__block.block-1 .y-words img{width:40px}.banner2 .back-top{margin-top:120px;cursor:pointer;-webkit-transition:all .3s ease-in-out;transition:all .3s ease-in-out}.banner2 .back-top i{width:5px;background-size:5px auto}.banner2 .back-top span{color:#000;font-size:.8125rem;margin-left:9px;line-height:1;position:relative;top:4px;vertical-align:middle}}