.center-box{width:1620px;margin:0 auto;}.bread-crumbs{margin-top:12px;color:#282b31;font-size:14px;}.bread-crumbs span{color:#8f8f8f;}.bread-crumbs a:link,.bread-crumbs a:visited{color:#545454;}.center{display:flex;margin-top:30px;justify-content:space-between;}.left{width:320px;left:0;}.electronicComponent{width:100%;height:60px;font-size:16px;font-family:PingFangSC-Bold,PingFang SC;color:#282B31;line-height:30px;}.electronicComponentList{background:#efefef;border-radius:2px;padding:20px;box-sizing:border-box;}.electronicComponentList span{height:33px;font-size:16px;font-family:PingFangSC-Bold,PingFang SC;font-weight:bold;color:#545454;line-height:33px;display:block;}.electronicComponentList a{text-decoration:none;margin-top:10px;font-size:14px;display:block;color:#288AED;}.electronicComponentList .active{color:#455a94;}.electronicComponentList a:hover{color:#455a94;}.right{width:1280px;}.right .results{width:260px;height:42px;font-size:16px;font-family:PingFangSC-Regular,PingFang SC;font-weight:400;color:#282B31;line-height:42px;}.right .results span{}.right .top{display:flex;justify-content:space-between;margin-top:20px;}.checkboxBox_flex{display:flex;align-items:center;}.checkboxBox div:first-child{margin-bottom:12px;}.checkboxBox input{width:28px;height:28px;vertical-align:middle;cursor:pointer;}.checkboxBox .tit{float:left;font-size:14px;color:rgba(84,84,84,1);}.checkBox_div{float:left;width:20px;height:20px;position:relative;margin-right:5px;}.checkBox_div label{cursor:pointer;position:absolute;width:20px;height:20px;top:0;left:0;background-color:#fff;border-radius:3px;border:1px solid #455a94;}.checkBox_div label:after{opacity:0;}.checkBox_div input[type=checkbox]:checked + label:after{opacity:1;content:'';position:absolute;width:12px;height:6px;background:transparent;top:3px;left:3px;border:1px solid white;border-top:none;border-right:none;-webkit-transform:rotate(-45deg);-moz-transform:rotate(-45deg);-ms-transform:rotate(-45deg);transform:rotate(-45deg);}.checkBox_div input[type=checkbox]:checked + label{background:#455a94;}.right .filter{display:flex;align-items:flex-start;}.right .filter span{font-size:14px;font-family:PingFangSC-Medium,PingFang SC;color:#545454;line-height:28px;height:36px;line-height:36px;}.right .filter select{background:#ffffff;color:#8F8F8F;font-size:24px;padding:0 10px;width:420px;height:36px;border-radius:6px;border:2px solid #288AED;box-sizing:border-box;margin:0 10px;}.bit{font-size:16px;font-family:PingFang-SC-Heavy,PingFang-SC;font-weight:bold;color:#545454;margin:20px auto 20px 16px;}.bit-box{max-height:670px;background:#ffffff;border-radius:2px;border:1px solid #d7e6f8;padding:16px;box-sizing:border-box;display:flex;flex-wrap:wrap;align-items:flex-start;align-content:flex-start;overflow:auto;}.bit-box a{width:33%;text-decoration:none;font-size:14px;color:#288AED;margin:6px 0;padding-left:10px;}.bit-box a:hover{color:#455a94;}.help:hover .help-options{display:block;}.help{z-index:999;}.help-down{position:absolute;}.help-options{display:none;padding:15px 10px;background-color:#fff;position:absolute;margin-left:-75px;box-shadow:0px 0px 4px 0px rgba(0,0,0,0.2);background-color:#fff;}.help-options span{display:block;font-size:16px;line-height:26px;}.help-options span a:link,.help-options span a:visited{color:#555;}.help-options span a:hover{color:#b51b25;}