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(max-width:767px){.news_square{margin:0 auto;width:80%}.news_text{width:100%}}@media (max-width:576px){#backToTop{bottom:80px;right:16px}}@media (min-width:768px){.navbar .dropdown-menu{background-color:#004da0;border:none;border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.15);min-width:180px;padding:.5rem 0}.nav-item.dropdown:hover>.dropdown-menu{display:block}.navbar .dropdown-menu:before{border-bottom:8px solid #004da0;border-left:8px solid transparent;border-right:8px solid transparent;content:"";left:76px;position:absolute;top:-8px}.arrow-toggle{padding-right:1.2rem;position:relative}.arrow-toggle:after{border-bottom:2px solid #004da0;border-right:2px solid #004da0;content:"";height:6px;position:absolute;right:0;top:90%;transform:translateY(-50%) rotate(45deg);transition:transform .25s ease;width:6px}}.login-box{background-color:#fff;height:320px;padding:30px 25px;position:relative}.login-box,.login-box input{border:1px solid #ccc;border-radius:2px;width:60%}.login-box input{box-sizing:border-box;height:50px;margin:8px 0;padding:10px}.pass_right{margin-right:12px}.bt_dl{background:#004da0;border:none;border-radius:2px;color:#fff;height:50px;width:40%}.bt_dl:hover{background:#024083}.btn-login{text-align:center}.l_color{color:#979797;font-weight:300}.section-indent{padding-left:calc(6px + 2rem)}.bg_color{background-color:#eee;height:40px;line-height:40px;padding-left:20px;width:100%}.bg_color,.text_xiehui{font-size:1em;font-weight:500}.text_xiehui{color:#000}.thank_text{color:darkred}.bg_copy{background:#eee;height:100%;width:99%}.dot-list li{display:block;padding-left:1.2em;position:relative}.bot-line-height{line-height:1.7em}.dot-list li:before{background:#000;border-radius:50%;content:"";height:4px;left:0;position:absolute;top:.75em;width:4px}.t_time{color:#888;flex-shrink:0;font-size:.85rem;padding-left:25px;white-space:nowrap;width:120px}.news_body{padding-left:120px}.research_institute{color:#024083}.institute_border{border-bottom:1px solid #eee;padding:1.5rem 0}