body{background:url(../images/m_index_bg.gif) no-repeat center 260px}@media (max-height:519px){body{background-size:50% auto}}@media (min-height:520px){body{background-size:70% auto}}.maincontent .logo{text-align:center;margin-top:4rem;margin-bottom:2rem}.maincontent .logo img{max-height:25px}.index_search{text-align:center;width:83%;margin:1rem auto;position:relative;box-shadow:rgba(6,155,126,.5) 0 0 10px;height:44px;border:1px solid #069b7e}.index_search .search_input{height:100%;width:73%;font-size:14px;float:left;padding-left:2%}.hot_link{width:83%;margin:1rem auto;text-align:left;color:#a8a8a8;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.hot_link a{margin-right:5px;color:#069b7e;text-decoration:none;background-color:#f5f5f5;display:inline-block;padding:8px;border-radius:4px}.index_container .section-container{background-color:#f7f7f7;overflow:hidden}.index_container .introduction{margin-top:350px}.index_container .hot-parts{padding-bottom:20px}.section-container .section-title{padding:25px 0 20px;text-align:center;font-size:1.4em;color:#333}.section-container .section-wrapper{display:flex;flex-wrap:wrap;justify-content:center}.section-container .section_item{background:#fff;width:41%;float:left;margin:5px;text-align:center;padding:20px 8px;min-height:150px;border-radius:8px}.section_item .item_image{margin:10px}.section_item .item_image .icon{font-size:3.8em}.section_item .title{color:#333;font-size:1.3em}.hot-part{float:left;width:41%;background:#fff;line-height:30px;white-space:nowrap;border:solid 1px #eee;margin:-1px;padding:0 10px;overflow:hidden;text-overflow:ellipsis}.register-section{height:70px;line-height:70px;width:100%;background-color:#81cfbc;text-align:center}.register-section .register{color:#fff;font-size:1.4em;border:2px solid #fff;padding:8px 50px;border-radius:4px}.down-arrow{position:fixed;bottom:50px;width:100%;text-align:center}.blink{animation:blinker 2s linear infinite}@keyframes blinker{50%{opacity:0}}