:root{--blue:#3057df;--ink:#151d2b;--muted:#747c8f;--line:#e4e9f1;--pale:#f0f6ff;--font:Inter,"SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:#fff;font-family:var(--font);font-synthesis:none;line-height:1.6;scroll-behavior:smooth;scroll-padding-top:30px}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:default}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #aac0ff;outline-offset:5px}img,svg{display:block}svg{flex-shrink:0}[hidden]{display:none!important}.page-width{max-width:1200px;width:calc(100% - 128px);margin:auto}.site-header{border-bottom:1px solid var(--line)}.header-inner{max-width:1200px;width:calc(100% - 128px);height:78px;margin:auto;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;gap:17px;align-items:center;font-size:24px;font-weight:750;letter-spacing:-.6px}.brand-mark{width:36px;height:36px;stroke:var(--blue);stroke-width:3.5;fill:none}.site-header nav{display:flex;gap:40px;font-size:15px;font-weight:550}.site-header nav a:hover,.text-link:hover{color:var(--blue)}.hero{display:grid;grid-template-columns:43% 57%;align-items:center;position:relative;min-height:530px;padding:40px 0 38px;isolation:isolate}.hero-copy{position:relative;z-index:1}.hero h1{font-size:68px;line-height:1.19;letter-spacing:-2.5px;font-weight:780;margin:0 0 25px}.intro{font-size:21px;line-height:1.65;color:var(--muted);margin:0 0 31px;letter-spacing:-.5px;white-space:nowrap}.hero-art{width:116%;max-width:none;height:auto;margin-left:-5%;position:relative;z-index:0}.hero-actions{display:flex;align-items:center;gap:28px}.button{display:inline-flex;justify-content:center;align-items:center;gap:15px;border-radius:7px;min-height:49px;padding:11px 25px;font-size:17px;line-height:1.5;font-weight:650;border:1px solid transparent;transition:background .16s ease,transform .16s ease,color .16s ease;text-align:center}.primary{background:var(--blue);color:#fff;border-color:var(--blue)}.primary:hover{background:#2247c9;border-color:#2247c9}.primary:active,.secondary:active{transform:translateY(1px)}.hero .primary{min-height:59px;padding:15px 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7px;white-space:nowrap;letter-spacing:-.5px}.platform-meta{font-size:14px;color:var(--muted);margin:0 0 34px;white-space:nowrap}.download-note{color:var(--muted);font-size:13px;line-height:1.5;margin:15px 0 0;white-space:nowrap}.mini-item{padding-right:0}.mini-item .platform-meta{margin-bottom:15px}.mini-pending{width:94px;height:94px;background:var(--pale);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:auto}.mini-pending svg{height:44px;width:31px;fill:none;stroke:var(--blue);stroke-width:2.5}.mini-caption{text-align:center;margin-top:10px}.mini-code{width:142px;height:142px;object-fit:contain;margin:8px auto;background:#fff}.guide{background:#f1f7ff;border-radius:12px;padding:22px 30px;display:flex;align-items:center;gap:35px;min-height:106px}.guide-title{flex-shrink:0}.guide h2{font-size:23px;line-height:1.4;letter-spacing:-.6px;margin:0 0 6px}.guide-title p{font-size:13px;color:var(--muted);margin:0}.guide ol{list-style:none;padding:0;margin:0;display:flex;flex:1;justify-content:space-between;gap:20px}.guide li{display:flex;align-items:center;gap:17px;font-size:15px;white-space:nowrap}.guide li+li:before{content:"";width:24px;border-top:1px solid #b5ccff;margin-right:5px}.step-number{font-size:32px;font-weight:650;line-height:1.3;color:var(--blue);letter-spacing:-1.4px}.guide-details{margin:16px 0 25px;color:var(--muted);font-size:13px}.guide-details summary{cursor:pointer;width:fit-content}.guide-detail-content{background:#f8fafc;padding:18px 25px;color:#4f5a6e;border-radius:8px;margin-top:15px;font-size:14px}.guide-detail-content p{margin:0 0 12px}.guide-detail-content p:last-child{margin-bottom:0}.guide-detail-content ol{padding-left:24px;margin:0 0 12px}.guide-detail-content li{padding-left:3px;margin-bottom:6px}code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.94em;overflow-wrap:anywhere}.site-footer{border-top:1px solid 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p{font-size:14px;line-height:1.85;color:#596479;margin:0 0 18px}.dialog-version{font-size:13px!important;color:var(--muted)!important;margin:6px 0 24px!important}.dialog-close{position:absolute;right:18px;top:18px;width:33px;height:33px;display:flex;align-items:center;justify-content:center;background:#f1f4f8;border:0;border-radius:50%}.dialog-close svg{width:17px;height:17px;stroke:#677285;stroke-width:1.7;stroke-linecap:round}.dialog-notice{background:#f2f6fd;border-radius:7px;padding:12px 15px;font-size:13px!important}.button svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round}.checksum-details{font-size:12px;color:var(--muted);margin-top:22px}.checksum-details summary{cursor:pointer;width:fit-content}.checksum-details p{font-size:11px;margin:12px 0 3px}.checksum-details code{font-size:11px;word-break:break-all;display:block;line-height:1.7}
.hero{min-height:530px;overflow:hidden}.hero-art{position:absolute;width:65%;right:-18px;top:-26px;margin:0}.hero h1{font-size:72px;line-height:1.16}
@media(min-width:1500px){.page-width,.header-inner,.footer-inner{max-width:1230px}.hero{min-height:555px}.hero h1{font-size:72px}}
@media(max-width:1190px){.page-width,.header-inner,.footer-inner{width:calc(100% - 80px)}.hero h1{font-size:58px}.intro{font-size:18px}.hero .primary{font-size:17px;padding:14px 22px;min-height:54px}.hero-actions{gap:23px}.text-link{font-size:16px}.hero{min-height:480px}.download-item{gap:16px;padding-left:0;padding-right:18px}.download-item+.download-item{padding-left:25px}.download-content h3{font-size:20px}.platform-icon{width:33px;height:33px}.platform-meta{font-size:12px}.button.secondary,.button.disabled{min-width:160px;font-size:15px;padding:10px 16px}.download-note{font-size:12px}.guide{gap:23px;padding:22px 24px}.guide-title p{font-size:12px}.guide h2{font-size:20px}.guide li{font-size:13px;gap:11px}.guide li+li:before{display:none}.step-number{font-size:28px}}
@media(max-width:900px){.page-width,.header-inner,.footer-inner{width:calc(100% - 56px)}.hero{min-height:430px}.hero h1{font-size:48px}.intro{font-size:15px;white-space:normal}.hero .primary{font-size:14px;padding:12px 16px;min-height:47px}.hero-actions{gap:20px}.hero-actions .text-link{font-size:14px}.download-item{gap:13px}.download-item+.download-item{padding-left:20px}.platform-icon{width:28px;height:28px}.download-content h3{font-size:17px}.download-note{white-space:normal}.platform-meta{white-space:normal;min-height:37px;margin-bottom:18px}.mini-item .platform-meta{margin-bottom:5px}.button.secondary,.button.disabled{min-width:130px;font-size:13px}.downloads h2{font-size:28px}.download-item{min-height:224px}.guide{flex-wrap:wrap;gap:18px}.guide-title{display:flex;align-items:baseline;gap:18px;width:100%}.guide-title h2{margin:0}.guide ol{justify-content:space-between}.mini-pending{height:80px;width:80px}.footer-domain{padding-left:16px}}
@media(max-width:640px){.page-width,.header-inner,.footer-inner{width:calc(100% - 40px)}.header-inner{height:68px}.brand{font-size:21px;gap:10px}.brand-mark{width:29px;height:29px;stroke-width:3}.site-header nav{gap:20px;font-size:12px}.hero{display:flex;flex-direction:column;align-items:stretch;padding:47px 0 17px;min-height:0}.hero h1{font-size:49px;line-height:1.2;letter-spacing:-1.8px;margin-bottom:20px}.intro{font-size:16px;line-height:1.75;margin-bottom:25px;letter-spacing:-.3px}.desktop-break{display:none}.hero .primary{font-size:16px;padding:14px 22px;min-height:53px}.hero-actions{gap:24px}.hero-actions .text-link{font-size:15px}.preview-note{font-size:12px;margin-top:11px}.hero-art{position:relative;right:auto;top:auto;width:108%;margin-left:-4%;margin-top:8px}.downloads{padding:28px 0 5px}.downloads h2{font-size:27px;letter-spacing:-1px;margin-bottom:9px}.download-rail{display:block}.download-item,.download-item+.download-item{border-left:0;padding:26px 0;gap:21px;min-height:0;border-bottom:1px solid var(--line)}.platform-icon,.wechat-icon{width:34px;height:34px;margin-top:4px}.download-content h3{font-size:21px}.download-content{flex:1}.platform-meta{min-height:0;font-size:13px;margin:0 0 20px}.button.secondary,.button.disabled{font-size:15px;min-width:180px;min-height:47px}.download-note{font-size:12px;margin-top:12px}.mini-item{border-bottom:0!important}.mini-item .platform-meta{margin-bottom:17px}.mini-pending{width:78px;height:78px;margin:0}.mini-caption{text-align:left}.mini-code{width:150px;height:150px;margin:0}.guide{margin-top:13px;display:block;padding:24px;border-radius:10px}.guide-title{display:block}.guide-title h2{font-size:22px;margin-bottom:7px}.guide-title p{font-size:12px}.guide ol{flex-direction:column;margin-top:22px;gap:18px}.guide li{gap:20px;font-size:14px}.step-number{font-size:29px;min-width:35px}.guide-details{font-size:12px;margin:17px 0 27px}.guide-detail-content{padding:18px;font-size:13px}.footer-inner{align-items:flex-start;flex-direction:column;gap:15px;padding:23px 0 25px;font-size:12px}.footer-brand{font-size:14px;gap:8px}.footer-brand .brand-mark{width:24px;height:24px}.footer-domain{font-size:11px;padding-left:13px;margin-left:5px}dialog{padding:30px 24px}dialog h2{font-size:24px}.dialog-close{right:14px;top:14px}}
@media(max-width:360px){.site-header nav{gap:12px;font-size:11px}.brand{font-size:19px}.hero h1{font-size:44px}.hero .primary{font-size:14px;padding:13px 17px}.hero-actions{gap:18px}.hero-actions .text-link{font-size:14px}.footer-domain{font-size:10px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}.button{transition:none}}
.footer-links{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.footer-links a{color:var(--muted)}.footer-links a:hover{color:var(--blue)}@media(max-width:640px){.footer-links{gap:16px;font-size:11px}}