.center-box{width:1620px;margin:0 auto;}.bread-crumbs{height:60px;line-height:60px;color:#282b31;font-size:14px;}.bread-crumbs span{color:#8f8f8f;}.bread-crumbs a:link,.bread-crumbs a:visited{color:#545454;}.brand-logo{display:flex;}.brand-logoBox{width:160px;height:160px;line-height:160px;display:inline-block;border:1px solid #ddd;border-radius:4px;overflow:hidden;position:relative;}.brand-logoBox>img{position:absolute;vertical-align:middle;transform:translate(-50%,-50%);top:50%;width:auto;height:auto;max-width:100%;max-height:100%;left:50%;border-radius:4px;}.bread-name{width:1444px;margin-left:14px;display:inline-block;vertical-align:top;}.bread-name div:first-child{font-weight: bold;}.bread-name:first-child{width:100%;font-size:16px;line-height:30px;columns:#282B31;color:#282B31;display:inline-block;}.bread-name:last-child{width:calc(100% - 200px);margin-top:11px;font-size:14px;font-family:PingFangSC-Medium,PingFang SC;font-weight:500;color:#545454;line-height:24px;display:inline-block;}.box{width:100%;}.circuit-protection,.diodes{margin-left:22px;height:56px;line-height:56px;color:#455a94;font-size:16px;font-weight:bold;}.circuit-protection-box{background:#ffffff;border-radius:2px;border:1px solid #d7e6f8;}.circuit-protection-box,.diodes-box{width:100%;min-height:30px;padding:22px 22px 0 22px;display:flex;flex-wrap:wrap;}.circuit-protection-box label,.diodes-box a{text-decoration:none;font-size:16px;color:#4fadfb;width:25%;line-height:30px;padding-right:1%;margin-bottom:22px;}.circuit-protection-box a:nth-child(2n){padding-left:10px;}.circuit-protection-box a:nth-child(2n + 1){padding-right:10px;}.diodes-box span{color:#929292;}.info_common img{position:absolute;width:28px;height:28px;}.help:hover .help-options{display:block;}.help{z-index:999;}.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;}