.header-nav{width:100%;background:#3333;position:fixed;top:0;z-index:4;padding:15px 0}.nav-wrap{display:flex;justify-content:space-between;align-items:center}.nav-wrap .nav-list{display:flex;width:550px;justify-content:space-between}.nav-wrap .nav-list .nav-item{position:relative;cursor:pointer;transition:all .4s;color:#fff}.nav-wrap .nav-list .nav-item:after{display:none;content:"";width:100%;height:2px;background:var(--active-color);position:absolute;top:calc(100% + 5px)}.nav-wrap .nav-list .nav-item:hover{color:var(--active-color)}.nav-wrap .nav-list .nav-item:hover:after{display:block;animation:zoomIn .4s}.nav-wrap .nav-list .nav-item.active-item{color:var(--active-color)}.nav-wrap .nav-list .nav-item.active-item:after{display:block}.nav-wrap .logo-box img{width:100px}.pc-footer-bar{background:#343434;padding:40px 0;color:#fffffffa}.pc-footer-bar .footer-wrap .up-box{display:flex;justify-content:space-between}.pc-footer-bar .footer-wrap .up-box .contact-us{width:386px}.pc-footer-bar .footer-wrap .up-box .fast{width:260px}.pc-footer-bar .footer-wrap .up-box .follow-us{width:214px}.pc-footer-bar .footer-wrap .up-box .tit-box{padding-bottom:12px;border-bottom:1px solid #fffffffa;margin-bottom:12px}.pc-footer-bar .footer-wrap .up-box .tit-box span:nth-child(2){font-size:14px;margin-left:8px;opacity:.6}.pc-footer-bar .footer-wrap .up-box .cb-1{margin-bottom:15px}.pc-footer-bar .footer-wrap .up-box .cb-2{display:flex;justify-content:space-between}.pc-footer-bar .footer-wrap .up-box .cb-2 img{margin-right:10px}.pc-footer-bar .footer-wrap .con-box,.pc-footer-bar .footer-wrap .footer-nav-list{color:#ffffff80}.pc-footer-bar .footer-wrap .footer-nav-list{display:flex;flex-wrap:wrap;justify-content:space-between}.pc-footer-bar .footer-wrap .footer-nav-list .f-n-item{width:67px;margin-bottom:15px;cursor:pointer}.pc-footer-bar .footer-wrap .footer-nav-list .f-n-item:hover{color:#fff}.pc-footer-bar .footer-wrap .follow-us .con-box{display:flex;justify-content:space-between}.pc-footer-bar .footer-wrap .follow-us .con-box img{display:block;margin-bottom:5px}.pc-footer-bar .bottom-box{color:#ffffff80;text-align:center;padding-top:20px;border-top:1px solid #E2E2E244;margin-top:40px;font-size:14px}.pc-footer-bar .bottom-box div{margin-bottom:5px}.zb-container{width:1200px;margin:0 auto}.block-margin{margin-bottom:80px}.more-btn{text-align:center;height:36px;line-height:36px;width:116px;transition:all .36s;border:1px solid #999;color:#545454;font-size:13px;cursor:pointer}.more-btn:hover{color:#fff;border:1px solid var(--active-color);background:var(--active-color)}.block-tit{font-size:32px;color:#333;font-weight:700;text-align:center;margin-bottom:30px}