:root{--pc-width: 1920;--pc-height: 1080;--mobile-width: 750;--mobile-footer-height: 395;--mobile-footer-safe-height: 300;--mobile-content-height: 2217}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#050505}body{font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif;overflow-x:hidden}button{font:inherit}.landing{min-height:100vh}.pc-page{min-height:100vh;display:grid;place-items:center;background:#050505;overflow:hidden}.pc-canvas{position:relative;width:min(100vw,calc(100vh * var(--pc-width) / var(--pc-height)));aspect-ratio:1920 / 1080}.pc-image,.pc-download-qr,.mobile-bg,.mobile-banner,.mobile-content,.mobile-download img{display:block;width:100%;height:auto;-webkit-user-select:none;user-select:none;-webkit-user-drag:none}.pc-download-qr{position:absolute;left:31.25%;top:64.35%;z-index:2;width:8.85%;height:auto}.hotspot{position:absolute;display:block;padding:0;border:0;background:transparent;cursor:pointer;-webkit-tap-highlight-color:transparent}.hotspot:focus-visible{outline:2px solid rgba(255,255,255,.75);outline-offset:3px}.pc-business{left:79.32%;top:4.44%;width:4.58%;height:9.72%}.pc-community{left:85.26%;top:4.44%;width:4.43%;height:9.63%}.pc-email{left:91.25%;top:4.54%;width:4.43%;height:9.63%}.pc-download{left:11.56%;top:67.31%;width:17.66%;height:11.94%}.mobile-page{display:none;min-height:100vh;background:#050505}.mobile-shell{position:relative;width:min(100vw,750px);min-height:2873px;margin:0 auto;overflow:hidden}.mobile-bg{position:absolute;inset:0 auto auto 0;z-index:0}.mobile-banner{position:absolute;left:3.6%;top:166px;z-index:1;width:92.67%}.mobile-shell .mobile-logo{position:absolute;left:5.73%;top:57px;z-index:3;width:29.87%}.mobile-shell .mobile-icon{position:absolute;z-index:3}.mobile-shell .mobile-icon-business{left:57.47%;top:70px;width:9.47%}.mobile-shell .mobile-icon-community{left:71.33%;top:69px;width:9.33%}.mobile-shell .mobile-icon-email{left:85.07%;top:69px;width:9.33%}.mobile-tabs{position:absolute;left:3.6%;top:557px;z-index:2;width:92.67%;height:76px;display:grid;grid-template-columns:repeat(5,1fr);align-items:stretch;overflow:hidden;background:#000}.mobile-tabs-base{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;width:100%;height:100%;display:none;pointer-events:none}.tab-button{position:relative;z-index:2;min-width:0;height:100%;padding:0;border:0;border-radius:10px;background:transparent;color:#fff;font-size:15px;font-weight:500;line-height:1;white-space:nowrap;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.tab-button.is-active{background:#ff0050}.tab-button:focus-visible{outline:2px solid rgba(255,255,255,.75);outline-offset:-4px}.mobile-content-scroll{position:absolute;left:3.6%;top:656px;right:3.73%;bottom:0;z-index:1;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch}.mobile-content{width:92.67%}.mobile-business{left:57.47%;top:70px;width:9.47%;height:70px;z-index:4}.mobile-community{left:71.33%;top:69px;width:9.33%;height:71px;z-index:4}.mobile-email{left:85.07%;top:69px;width:9.33%;height:71px;z-index:4}.mobile-download{position:fixed;right:0;bottom:0;left:0;z-index:10;pointer-events:none}.mobile-download-inner{position:relative;width:min(100vw,750px);margin:0 auto;pointer-events:auto}.android-download{left:8.93%;top:34.94%;width:35.73%;height:20.51%}.ios-download{left:54.93%;top:34.94%;width:35.73%;height:20.51%}@media(max-width:767px){body{background:#050505}.pc-page{display:none}.mobile-page{display:block;position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden}.mobile-shell{width:100vw;height:100vh;min-height:0}.mobile-banner{top:calc(100vw * 166 / var(--mobile-width))}.mobile-shell .mobile-logo{top:calc(100vw * 57 / var(--mobile-width))}.mobile-shell .mobile-icon-business{top:calc(100vw * 70 / var(--mobile-width))}.mobile-shell .mobile-icon-community,.mobile-shell .mobile-icon-email{top:calc(100vw * 69 / var(--mobile-width))}.mobile-tabs{top:calc(100vw * 557 / var(--mobile-width));height:calc(100vw * 76 / var(--mobile-width))}.mobile-content-scroll{top:calc(100vw * 656 / var(--mobile-width));bottom:calc(100vw * var(--mobile-footer-safe-height) / var(--mobile-width))}.mobile-content{width:100%}.mobile-business{top:calc(100vw * 70 / var(--mobile-width));height:calc(100vw * 70 / var(--mobile-width))}.mobile-community,.mobile-email{top:calc(100vw * 69 / var(--mobile-width));height:calc(100vw * 71 / var(--mobile-width))}}@media(min-width:768px){.mobile-page{display:none}}