body{background: #f9f9f9;}
.encyclopedia_banner{width: 100%;height: 280px;min-width:1170px;background: url("../img/encyclo_banner.jpg") no-repeat center top;}
.encyclopedia_search{margin: -40px auto 40px;width: 1162px;height: 68px;background: #fff;border: 1px solid #f1f1f1;border-left: 4px solid #91c6f9;border-right: 4px solid #91c6f9;line-height: 68px;}
.encyclopedia_search_box{position: relative;margin: 0 auto;width: 690px;}
.encyclopedia_search_box .icon-search{position: absolute;left: 28px;font-size: 24px;}
.encyclopedia_search input{margin: 0 auto;padding-left: 60px;width: 520px;height: 40px;background: #f2f2f2;border-radius: 6px 0 0 6px;}
.encyclopedia_search_btn{margin-left: -4px;padding: 10px 25px;background: #4068aa;color: #fff;font-size: 14px;vertical-align: middle;border-radius: 0 6px 6px 0;cursor: pointer;}
.encyclopedia_search_btn:hover{background: #1c51a8;}
.encyclopedia_con{display: flex;justify-content: space-between;margin: 0 auto;width: 1170px;}
.encyclopedia_con_left_item{display: flex;flex-wrap: wrap;}
.encyclopedia_con_left_item .item_lable{margin: 10px 12px 0 0;background: #f1f1f1;border-radius: 6px;}
.encyclopedia_con_left_item .item_lable a{display: inline-block;padding: 10px 20px;color: #222;}
.encyclopedia_con_left_list{display: flex;flex-wrap: wrap;margin-bottom: 27px;}
.encyclopedia_con_left_list a,.hot_search_terms a,.bionic_entry_con_li a{color: #222;}
.encyclopedia_list_li{position: relative;margin: 22px 23px 0 0;padding-bottom: 20px;width: 246px;background: #fff;}
.encyclopedia_list_li_img {width: 100%;height: 164px;}
.encyclopedia_list_li_img img{width: 100%;height: 100%;transition:all 0.6s;}
.encyclopedia_list_li:hover img{transform: scale(1.1);transition:all 0.6s;}
.encyclopedia_list_li_con{padding: 0 8px;}
.encyclopedia_list_li_con h3{margin: 14px 0 10px 0;font-size: 14px;font-weight: bolder;}
.encyclopedia_list_li_con p{display: -webkit-box;-webkit-box-orient: vertical;-webkit-line-clamp: 6;overflow: hidden;margin: 16px 0 20px 0;font-size: 14px;}
.encyclopedia_list_li .time,.encyclopedia_list_li p,.encyclopedia_list_li_con_lable span{color: #7c7c7c;}
.encyclopedia_list_li_con_lable{position: absolute;bottom: 10px}
.encyclopedia_list_li_con_lable span{margin-right: 4px;padding: 5px 12px;background: #f1f1f1;border-radius: 6px;}
.encyclopedia_con_left_title{margin-bottom: 40px; text-align: center;border-bottom: 1px solid #EEEEEE;}
.encyclopedia_con_left_span a{display: inline-block;padding: 10px 0;margin: 0 30px;color: #333;font-size: 22px;border-bottom: 2px solid #f9f9f9;}
/*.encyclopedia_con_left_span:hover a{font-weight: 700;border-bottom: 2px solid #000;}*/
.encyclopedia_con_left_span .encyclopedia_con_left_span_active{font-weight: 700;border-bottom: 2px solid #000;}


.encyclopedia_con_right{flex-shrink: 0;width: 344px;}
.popular_science_encyclopedia{padding: 30px 82px 25px;background: url("../img/popular_science_encyclopedia_bg.png") no-repeat center top;background-size: 100% 100%;}
.popular_science_encyclopedia h2{margin-bottom: 16px;padding: 0 20px;font-size: 20px;font-weight: bolder;color: #3455a1;}
.popular_science_encyclopedia_li{display: flex;margin-bottom: 7px;padding: 12px 16px;justify-content: space-between; align-items: center;background: #fff;border-radius: 30px;}
.popular_science_encyclopedia .iconfont{font-weight: bolder;color: #3c5ba4;font-size: 22px;}
.encyclopedia_li_num{color: #082590;font-weight: bolder;}
.encyclopedia_li_suffix{color: #3455a1;}
.create_entry{margin-top: 10px;padding: 12px 14px;}
.create_entry a{padding: 12px 46px;background: #4068aa;border-radius: 30px;}
.create_entry a:hover{box-shadow: 0px 2px 10px #4068aa;}
.hot_search_terms{margin-top: 38px;}
.hot_search_terms h2,.bionic_entry h2{margin-bottom: 14px;font-size: 18px;font-weight: bolder;}
.hot_search_terms_li{padding: 14px 15px;border: 1px solid #e8e8e8;}
.hot_search_terms_li:hover{border: 1px solid #92c7f7;color: #35a8ec;}
.icon-cs-jt-xs-1-1{color: #4068aa;font-size: 16px;}
.hot_search_terms_li_title{display: flex;justify-content: space-between;}
.hot_search_terms_li h3{font-size: 14px;font-weight: bolder;min-height: 40px}
.hot_search_terms_li p{display: -webkit-box;margin-top: 8px;font-size: 12px;color: #858a95;-webkit-box-orient: vertical;-webkit-line-clamp: 3;overflow: hidden;}
.hot_search_terms_li:nth-child(2){background: #ceddff;}
.hot_search_terms_li:nth-child(3){background: #e4ecff;}
/*.hot_search_terms_li:nth-child(4) p,.hot_search_terms_li:nth-child(5) p{display: -webkit-box;-webkit-box-orient: vertical;-webkit-line-clamp: 2;overflow: hidden;}*/
/*.hot_search_terms_li:nth-child(4),.hot_search_terms_li:nth-child(5),.hot_search_terms_li:nth-child(6),.hot_search_terms_li:nth-child(7),.hot_search_terms_li:nth-child(9),.hot_search_terms_li:nth-child(8){display: -webkit-box;width: 140px;-webkit-box-orient: vertical;-webkit-line-clamp: 2;overflow: hidden;}*/
/*.hot_search_terms_li:nth-child(6),.hot_search_terms_li:nth-child(7),.hot_search_terms_li:nth-child(8),.hot_search_terms_li:nth-child(9){height: 16px;overflow: hidden;}*/

/*.hot_search_terms_li:nth-child(4),.hot_search_terms_li:nth-child(5),.hot_search_terms_li:nth-child(8){background: #f5f4f4;}*/
/*.hot_search_terms_li:nth-child(5),.hot_search_terms_li:nth-child(6),.hot_search_terms_li:nth-child(9){background: #efefef;}*/

.bionic_entry{margin-top: 38px;}
.bionic_entry_con{display: flex;flex-wrap: wrap;}
.bionic_entry_con_li{margin: 0 12px 10px 0;padding: 6px 8px;background: #c5e2eb;border-radius: 6px;}
.bionic_entry_con_li:nth-child(4),.bionic_entry_con_li:nth-child(5),.bionic_entry_con_li:nth-child(6),.bionic_entry_con_li:nth-child(9),.bionic_entry_con_li:nth-child(10),.bionic_entry_con_li:nth-child(11),.bionic_entry_con_li:nth-child(12),.bionic_entry_con_li:nth-child(14),.bionic_entry_con_li:nth-child(18),.bionic_entry_con_li:nth-child(19){background: #c5d3eb;}
.encyclopedia_foot_resource{width: 76px;}
.encyclopedia_foot_resource li{width: 28px;float: left;padding: 0 5px;}
.encyclopedia_foot_resource li:first-child{width: 76px;}

.encyclopedia_list_li_img{overflow: hidden;}
.encyclopedia_list_li_con_lable{padding: 0 8px;}
.encyclopedia_list_li:nth-child(3n+3){margin-right: 0;}

.encyclopedia_con_left_item .item_lable:nth-child(1){background: #c9cfe1;}
.encyclopedia_con_left_item .item_lable:nth-child(2){background: #d1dfee;}
.encyclopedia_con_left_item .item_lable:nth-child(3){background: #d1e7ee;}
.encyclopedia_con_left_item .item_lable:nth-child(4){background: #d1dbee;}
.encyclopedia_con_left_item .item_lable:nth-child(5){background: #d1dfee;}
.encyclopedia_con_left_item .item_lable:nth-child(6){background: #d1e7ee;}
.encyclopedia_con_left_item .item_lable:nth-child(7){background: #d1dbee;}