:root{color-scheme:light;--cream:#fff9f2;--cream-deep:#feeac9;--surface:#fffdf9;--coral:#fd7979;--pink:#ffcdc9;--ink:#302329;--muted:#6b5156;--tint:#9a3b47;--line:rgba(48,35,41,.14);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:var(--ink);background:var(--cream);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}a{color:inherit;text-decoration:none}button,a,summary{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--tint);outline-offset:4px}p,h1,h2,h3,figure{margin:0}button{color:inherit}button:disabled{cursor:default}img{display:block;max-width:100%}section[id],article[id]{scroll-margin-top:24px}.skip-link{position:fixed;z-index:10;left:16px;top:-80px;padding:12px 18px;background:var(--ink);color:var(--cream);border-radius:8px}.skip-link:focus{top:12px}
.site-header{border-bottom:1px solid var(--line)}.header-inner,main,footer{width:min(1120px,calc(100% - 64px));margin-inline:auto}.header-inner{height:80px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:10px;align-items:center;font-size:24px;font-weight:750;letter-spacing:-.7px}.brand img{width:40px;height:40px;object-fit:contain}.header-inner nav{display:flex;gap:8px}.header-inner nav a{padding:12px 18px;font-size:15px;font-weight:600;border-radius:10px}.header-inner nav a:hover{background:var(--cream-deep)}
.intro{padding:48px 0 30px;display:flex;align-items:end;justify-content:space-between;gap:24px}.eyebrow{font-size:14px;color:var(--tint);font-weight:650;margin-bottom:10px}h1{font-size:46px;font-weight:740;line-height:1.22;letter-spacing:-2px}h1 span{color:var(--tint)}.intro-copy{font-size:16px;line-height:1.75;color:var(--muted);padding-bottom:3px}
.first-tips{background:var(--cream-deep);border-radius:18px;padding:22px 24px;display:grid;grid-template-columns:1.12fr 1fr;gap:32px}.tip{display:flex;align-items:start;gap:12px}.tip-number{flex:none;display:grid;place-items:center;width:26px;height:26px;background:var(--ink);color:var(--cream);border-radius:50%;font-weight:650;font-size:13px}.tip p{font-size:14px;line-height:1.65}.tip strong{display:block;font-weight:680;margin-bottom:4px}.tip p>span{color:var(--muted)}
.download-section{padding-top:38px}.section-heading{display:flex;gap:16px;justify-content:space-between;align-items:center;margin-bottom:18px}h2{font-size:26px;line-height:1.3;font-weight:720;letter-spacing:-.7px}.version{font-size:13px;color:var(--tint);font-weight:650;border:1px solid var(--pink);border-radius:6px;padding:5px 8px}.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.download-card{padding:26px;background:var(--surface);border:1px solid var(--line);border-radius:18px;display:flex;gap:20px;justify-content:space-between;min-width:0}.download-main{flex:1;min-width:0}.platform-line{display:flex;flex-direction:column;gap:5px}.platform-line h3{font-size:24px;line-height:1.1;letter-spacing:-.7px}.platform-line>span{font-size:13px;color:var(--muted)}.file-meta{font-size:13px;color:var(--muted);margin-top:14px;margin-bottom:12px;font-variant-numeric:tabular-nums}.button{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:48px;padding:12px 18px;border-radius:10px;font-size:15px;font-weight:700;max-width:290px}.button>span{font-size:23px;font-weight:400;line-height:1}.button-primary{background:var(--coral)}.button-primary:hover{background:#fd8c8c}.button-secondary{background:var(--ink);color:var(--cream)}.button-secondary:hover{background:#49323d}.install-note{font-size:12px;line-height:1.65;color:var(--muted);margin-top:11px;max-width:330px}.qr{align-self:center;flex:none;max-width:116px;text-align:center}.qr img{width:112px;height:112px;background:white;padding:4px;border:1px solid var(--line);border-radius:8px}.qr figcaption{font-size:11px;color:var(--muted);line-height:1.6;margin-top:6px}.qr strong{font-weight:600}.checksum{margin-top:14px;color:var(--muted);font-size:12px}.checksum summary{cursor:pointer;width:fit-content;padding:9px 0;min-height:36px}.hash-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:14px 18px;background:#fff2e6;border-radius:10px}.hash-grid p{min-width:0;line-height:1.7}.hash-grid strong,.hash-grid span{display:block}.hash-grid code{display:block;font-family:ui-monospace,monospace;font-size:11px;overflow-wrap:anywhere;user-select:all;margin-block:3px}
.guide-section{padding-top:35px}.section-hint{font-size:13px;color:var(--muted)}.guide-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;border-bottom:1px solid var(--line);padding-bottom:9px}.guide-tabs button{min-height:48px;border:0;background:transparent;border-radius:10px;font-size:15px;font-weight:650;display:flex;gap:9px;align-items:center;justify-content:center}.guide-tabs button span{display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:var(--cream-deep);font-size:12px}.guide-tabs button[aria-selected=true]{background:var(--pink);color:var(--ink)}.guide-tabs button[aria-selected=true] span{background:var(--ink);color:var(--cream)}.guide-tabs button:hover{background:#fff0e3}.guide-panel{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:50px;align-items:center;padding:28px 32px;background:#fffdf9;border:1px solid var(--line);border-top:0;border-radius:0 0 18px 18px;min-height:490px}.guide-panel[hidden]{display:none}.step-copy h3{font-size:23px;font-weight:700;line-height:1.4;letter-spacing:-.7px;margin-bottom:14px}.step-copy p,.step-copy li{font-size:15px;color:var(--muted);line-height:1.85}.step-copy strong{color:var(--ink);font-weight:650}.step-copy ul,.step-copy ol{padding-left:20px;margin:13px 0}.step-copy li{padding-left:2px;margin-bottom:7px}.step-actions{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-top:22px}.text-button,.next-step{border:0;background:transparent;min-height:44px;padding:9px 0;font-size:13px;font-weight:650;color:var(--tint)}.next-step{margin-left:auto}.step-actions span{margin-left:5px}.guide-figure{justify-self:center;text-align:center}.image-button{display:block;padding:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--cream-deep);box-shadow:0 8px 24px -16px rgba(48,35,41,.25);cursor:zoom-in}.image-button img{height:396px;width:auto;max-width:100%;object-fit:contain}.guide-figure figcaption{font-size:11px;line-height:1.6;color:var(--muted);margin-top:8px}.demo-caption{text-align:center;color:var(--muted);font-size:12px;margin:12px 0 18px}.inline-note{background:#fff0e3;padding:13px 15px;border-radius:10px;font-size:13px;color:var(--muted);line-height:1.75}.inline-note p{font-size:13px;margin-top:3px}.step-copy .active-color{color:#ba3939}.mode-notes{background:var(--cream);border-left:3px solid var(--coral);padding:9px 14px;margin:14px 0 10px}.mode-notes p{display:flex;gap:12px;font-size:13px;line-height:1.8}.mode-notes strong{min-width:84px}.step-copy .small-copy{font-size:13px}.manual-note{display:flex;gap:18px;padding:17px 20px;background:var(--cream-deep);border-radius:12px;font-size:13px;line-height:1.7;color:var(--muted)}.manual-note strong{flex:none;color:var(--ink)}
.troubleshooting{padding:36px 0}.troubleshooting h2{font-size:20px;margin-bottom:15px}.help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.help-grid p{font-size:13px;line-height:1.8;color:var(--muted)}.help-grid strong{display:block;font-size:14px;color:var(--ink);margin-bottom:4px}.help-grid span{display:block}footer{border-top:1px solid var(--line);padding:23px 0 28px;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}footer>span{font-weight:700;font-size:16px}footer a{min-height:44px;display:flex;align-items:center;gap:10px}
dialog{color:var(--ink);border:1px solid var(--line);border-radius:16px;padding:0;max-width:calc(100vw - 28px);width:560px;max-height:calc(100dvh - 32px);background:var(--cream)}dialog::backdrop{background:rgba(33,26,31,.64)}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 18px;border-bottom:1px solid var(--line)}.dialog-head h2{font-size:15px;font-weight:650;letter-spacing:0}.dialog-head button{background:var(--cream-deep);border:0;border-radius:8px;padding:10px 12px;min-height:44px;flex:none;font-size:13px}.dialog-image{overflow:auto;max-height:calc(100dvh - 180px);padding:16px}.dialog-image img{width:auto;max-width:100%;height:auto;margin-inline:auto;border-radius:9px;border:1px solid var(--line)}dialog>p{font-size:11px;text-align:center;line-height:1.7;padding:8px 16px 14px;color:var(--muted)}
@media(min-width:768px){.guide-panels{min-height:490px}}
@media(max-width:1000px){.download-card{padding:22px;gap:15px}.qr{max-width:98px}.qr img{width:94px;height:94px}.guide-panel{grid-template-columns:minmax(0,1fr) 250px;gap:28px;padding:26px}.intro-copy{font-size:14px}h1{font-size:38px}.step-copy p,.step-copy li{font-size:14px}}
@media(max-width:767px){html{scroll-padding-top:16px}.header-inner,main,footer{width:calc(100% - 36px)}.header-inner{height:68px}.brand{font-size:22px;gap:8px}.brand img{width:34px;height:34px}.header-inner nav{gap:0}.header-inner nav a{padding:12px 10px;font-size:13px}.intro{display:block;padding:30px 0 23px}.eyebrow{font-size:12px;margin-bottom:10px}h1{font-size:34px;line-height:1.25;letter-spacing:-1.8px;max-width:390px}h1 span{display:block}.intro-copy{margin-top:13px;font-size:13px;line-height:1.6}.desktop-break{display:none}.first-tips{padding:18px 16px;grid-template-columns:1fr;gap:17px;border-radius:14px}.tip{gap:10px}.tip-number{width:22px;height:22px;font-size:11px}.tip p{font-size:12px;line-height:1.75}.tip strong{margin-bottom:3px;font-size:12px}.download-section{padding-top:30px}.section-heading{gap:10px;margin-bottom:14px}h2{font-size:23px}.version{font-size:11px;padding:4px 6px}.download-grid{grid-template-columns:1fr;gap:12px}.download-card{padding:20px;gap:16px;border-radius:14px}.platform-line h3{font-size:23px}.platform-line>span{font-size:12px}.file-meta{font-size:12px;margin-top:12px;margin-bottom:10px}.button{font-size:13px;padding:11px 13px;min-height:46px}.qr{max-width:93px}.qr img{width:90px;height:90px}.qr figcaption{font-size:10px;margin-top:5px}.install-note{font-size:11px;margin-top:9px}.checksum{font-size:11px;margin-top:10px}.hash-grid{grid-template-columns:1fr;gap:14px;padding:12px}.guide-section{padding-top:27px}.section-hint{font-size:11px}.guide-tabs{grid-template-columns:repeat(2,1fr);gap:5px;padding-bottom:12px}.guide-tabs button{justify-content:start;padding:10px 12px;font-size:13px;min-height:46px;gap:8px}.guide-tabs button span{width:21px;height:21px;font-size:11px}.guide-panel{display:flex;flex-direction:column;gap:22px;padding:22px 19px 19px;border-radius:0 0 14px 14px;min-height:0;align-items:stretch}.step-copy h3{font-size:20px;line-height:1.45;margin-bottom:12px;letter-spacing:-.6px}.step-copy p,.step-copy li{font-size:13px;line-height:1.85}.step-copy ul,.step-copy ol{margin:11px 0;padding-left:18px}.step-copy li{margin-bottom:7px}.step-actions{margin-top:11px;gap:4px}.text-button,.next-step{font-size:12px}.guide-figure{align-self:center}.image-button img{height:310px}.guide-figure figcaption{font-size:10px}.demo-caption{font-size:10px;line-height:1.7;margin:10px 0 16px}.manual-note{display:block;padding:14px 16px;font-size:12px}.manual-note strong{display:block;margin-bottom:3px}.inline-note{font-size:12px;padding:11px 12px}.inline-note p{font-size:12px}.mode-notes{padding:8px 10px}.mode-notes p{display:block;font-size:12px}.mode-notes strong{display:block}.step-copy .small-copy{font-size:12px}.troubleshooting{padding:27px 0}.troubleshooting h2{font-size:18px;margin-bottom:14px}.help-grid{grid-template-columns:1fr;gap:13px}.help-grid p{font-size:12px;line-height:1.75}.help-grid strong{font-size:13px;margin-bottom:2px}.help-grid span{display:inline}footer{padding:15px 0 18px;font-size:11px}.dialog-head{padding:9px 12px}.dialog-head h2{font-size:13px}.dialog-image{padding:12px}}
@media(max-width:350px){.header-inner,main,footer{width:calc(100% - 28px)}.download-card{padding:16px;gap:12px}.qr{max-width:80px}.qr img{width:80px;height:80px}.platform-line h3{font-size:21px}.button{font-size:12px;gap:7px}.section-hint{max-width:110px;text-align:right}.guide-panel{padding:20px 15px}}
.header-inner nav a{min-height:44px;display:flex;align-items:center}.checksum summary{min-height:44px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

.route-links{margin-top:14px;font-size:12px;line-height:1.8;color:var(--muted)}.route-links a{color:var(--tint);text-decoration:underline;text-underline-offset:3px;display:inline-block;padding:8px 3px}
