:root{--bg:#fff;--soft:#f6f8f9;--text:#232a2f;--muted:#5d6870;--border:#e0e6ea;--brand:#0b7285;--brand-solid:#0b7285;--brand-hover:#095c6b;--brand-soft:#e4f4f7;--shadow:0 24px 60px #0a3a4418;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;--mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;color-scheme:light}
:root[data-theme=dark]{--bg:#14191c;--soft:#1b2226;--text:#ebf0f2;--muted:#9fabb2;--border:#2d383e;--brand:#6fd6e6;--brand-solid:#0b7285;--brand-hover:#9be4ef;--brand-soft:#173038;--shadow:0 24px 60px #0006;color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;color:var(--text)}
button,a{-webkit-tap-highlight-color:transparent}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--brand);outline-offset:5px}
h1,h2,h3,p,figure,ul{margin:0}
h2{font-size:34px;letter-spacing:-1px;line-height:1.45;font-weight:750}
h3{font-size:18px;font-weight:650}
code,kbd{font-family:var(--mono)}
.container{max-width:1152px;margin-inline:auto;width:calc(100% - 96px)}
.skip-link{position:fixed;top:-60px;left:20px;z-index:99;padding:8px 16px;background:var(--brand-solid);color:#fff;border-radius:6px}
.skip-link:focus{top:12px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Header */
.site-header{position:sticky;top:0;z-index:20;height:72px;background:var(--bg);border-bottom:1px solid var(--border)}
.nav-wrap{height:100%;max-width:1440px;margin:auto;padding:0 40px;display:flex;align-items:center;gap:32px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;white-space:nowrap}
.brand-mark{display:inline-grid;place-items:center;width:29px;height:29px;background:var(--brand-solid);color:#fff;font-size:18px;line-height:1;border-radius:8px;font-weight:800}
.brand-zh{font-size:14px;color:var(--muted);font-weight:500;margin-left:4px}
.desktop-nav{margin-left:auto;display:flex;align-items:center;gap:28px;font-size:14px;font-weight:550}
.desktop-nav a:hover,.text-link:hover,.site-footer a:hover{color:var(--brand)}
.nav-tools{display:flex;align-items:center;gap:13px}
.nav-divider{height:22px;width:1px;background:var(--border)}
.language-button{border:0;background:none;font-size:13px;font-weight:600;padding:8px}
.theme-button{display:grid;place-items:center;background:var(--soft);border:1px solid var(--border);border-radius:20px;width:38px;height:26px}
.theme-button svg{width:16px;height:16px;color:var(--muted)}
.moon-icon{display:none}
:root[data-theme=dark] .moon-icon{display:block}
:root[data-theme=dark] .sun-icon{display:none}
.menu-button{display:none;width:32px;height:34px;border:0;background:none;padding:7px}
.menu-button span{height:2px;width:18px;margin:5px 0;display:block;background:var(--text)}
.mobile-nav{background:var(--bg);border-bottom:1px solid var(--border);padding:12px 24px}
.mobile-nav:not([hidden]){display:flex;flex-direction:column}
.mobile-nav a{padding:10px}

/* Hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:48px;align-items:center;min-height:620px;padding-top:65px;padding-bottom:60px}
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:1.8px;font-weight:600;color:var(--brand);line-height:1.6}
.hero-copy{min-width:0}
.hero-copy>.eyebrow{display:flex;align-items:center;gap:8px;margin-bottom:21px}
.status-dot{width:6px;height:6px;background:var(--brand);border-radius:50%}
h1{font-size:58px;letter-spacing:-2px;line-height:1.16;font-weight:800}
.hero-name{display:block;background:linear-gradient(120deg,#0b7285 20%,#3b6fe0 90%);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.25;margin-bottom:8px}
:root[data-theme=dark] .hero-name{background-image:linear-gradient(120deg,#6fd6e6 20%,#8fb0ff 90%)}
.hero-name>span{font-size:.4em;letter-spacing:1px;vertical-align:5px;font-weight:650}
.hero-headline{display:block;line-height:1.25;text-wrap:balance;overflow-wrap:break-word}
.hero-description{color:var(--muted);font-size:19px;line-height:1.85;margin-top:24px}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:28px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;border-radius:24px;font-size:14px;font-weight:650;min-height:46px;padding:10px 24px;transition:background .18s,transform .18s}
.primary{background:var(--brand-solid);color:#fff}
.primary:hover{background:var(--brand-hover);transform:translateY(-1px)}
:root[data-theme=dark] .primary:hover{color:#0b2a31}
.secondary{background:var(--soft);border:1px solid var(--border)}
.secondary:hover{border-color:var(--brand)}
.text-link{font-size:14px;font-weight:550}
.hero-actions>.text-link{margin-left:8px}
.hero-platforms{font-size:12px;color:var(--muted);margin-top:22px}
.hero-platforms>span{margin:0 5px;color:var(--border)}
.hero-visual{position:relative;min-width:0;padding-top:15px}
.terminal-glow{position:absolute;inset:25px 20px 35px 20px;background:linear-gradient(130deg,#9fe3ee 15%,#b7c6f5 85%);filter:blur(65px);opacity:.5;transform:rotate(-7deg)}
:root[data-theme=dark] .terminal-glow{opacity:.22}
.svg-terminal{position:relative;line-height:0;transform:rotate(-2deg);border:1px solid #363b47;border-radius:12px;overflow:hidden;box-shadow:0 24px 50px #0a2a3a2b;background:#000}
.svg-terminal img{display:block;width:100%;height:auto}
.visual-caption{position:relative;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;text-align:center;gap:8px;margin-top:25px;font-size:11px;color:var(--muted)}
.caption-line{width:18px;height:1px;background:var(--brand);opacity:.6}
.preview-label{font-size:10px;border:1px solid var(--border);border-radius:4px;padding:0 5px;margin-left:7px}

/* Quick start */
.quick-start{padding-bottom:80px}
.command-bar{display:flex;align-items:center;gap:14px;max-width:720px;margin:auto;background:var(--soft);border:1px solid var(--border);border-radius:12px;padding:13px 15px 13px 22px}
.command-dollar{font-family:var(--mono);color:var(--brand)}
.command-bar>code{flex:1;min-width:0;overflow:auto;font-size:15px;white-space:nowrap}
.copy-button{display:flex;align-items:center;justify-content:center;gap:7px;font-size:12px;font-weight:500;border:1px solid var(--border);padding:6px 11px;min-height:34px;border-radius:7px;background:var(--bg);white-space:nowrap;flex-shrink:0}
.copy-button:hover{color:var(--brand);border-color:var(--brand)}
.copy-button svg{width:14px;height:14px}
.command-note{text-align:center;font-size:12px;margin-top:11px;color:var(--muted)}
.command-note a{color:var(--brand)}
.note-separator{margin:0 10px}

/* Features */
.section-heading{margin-bottom:30px}
.section-heading h2{margin-top:9px}
.section-heading>p:last-child{font-size:15px;color:var(--muted);margin-top:10px}
h2,h3{text-wrap:balance;overflow-wrap:break-word}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.feature-card{min-width:0;background:var(--soft);border:1px solid var(--border);border-radius:12px;padding:26px 26px 22px;transition:border-color .2s,transform .2s,box-shadow .2s}
.feature-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.feature-icon{display:grid;place-items:center;width:42px;height:42px;background:var(--brand-soft);border-radius:9px;color:var(--brand);font-size:21px;font-weight:550;margin-bottom:18px}
.feature-card h3{margin-bottom:8px}
.feature-card p{color:var(--muted);font-size:14px;line-height:1.9}
.feature-detail{display:block;border-top:1px solid var(--border);font-size:11px;color:var(--muted);padding-top:15px;margin-top:22px;letter-spacing:.3px}

/* Pages and keys */
.pages-section{padding-top:100px}
.page-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.page-group{min-width:0;border:1px solid var(--border);border-radius:12px;padding:22px 24px;background:var(--bg)}
.page-group h3{font-size:15px;color:var(--brand);margin-bottom:14px}
.page-group ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.page-group li{font-size:13px;background:var(--soft);border:1px solid var(--border);border-radius:6px;padding:3px 11px}
.key-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:18px}
.key-card{min-width:0;display:flex;gap:16px;align-items:flex-start;background:var(--soft);border:1px solid var(--border);border-radius:12px;padding:22px 24px}
.key-card kbd{flex-shrink:0;font-size:13px;font-weight:600;color:var(--brand);background:var(--bg);border:1px solid var(--border);border-bottom-width:3px;border-radius:7px;padding:3px 10px;line-height:1.6}
.key-card h3{font-size:16px;margin-bottom:6px}
.key-card p{font-size:13px;color:var(--muted);line-height:1.85}

/* Screens */
.screens-section{padding-top:100px}
.screen-selector{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:22px}
.screen-selector button{border:1px solid var(--border);background:var(--soft);border-radius:7px;padding:8px 14px;font-size:12px}
.screen-selector button[aria-pressed=true]{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
.screen-scroll-hint{display:none;color:var(--muted);font-size:12px;margin:0 0 12px}
.screen-showcase{border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--soft)}
.screen-viewport{max-width:100%;overflow-x:auto;overscroll-behavior-x:contain;background:#000;-webkit-overflow-scrolling:touch}
.screen-viewport:focus-visible{outline:3px solid var(--brand);outline-offset:-3px}
.screen-viewport img{display:block;width:100%;height:auto}
.screen-showcase figcaption{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:18px 24px;font-size:13px;color:var(--muted)}
.screen-showcase figcaption a{color:var(--brand);white-space:nowrap;font-size:12px}

/* Download */
.download-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:75px;padding-top:110px;padding-bottom:85px}
.download-intro{min-width:0;padding-top:20px}
.download-intro h2{font-size:40px;margin-top:12px;line-height:1.4}
.download-intro>p:not(.eyebrow){font-size:15px;color:var(--muted);margin:18px 0}
.download-intro>.text-link{color:var(--brand)}
.download-panel{min-width:0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--bg)}
.platform-selector{display:flex;background:var(--soft);border-bottom:1px solid var(--border);padding:7px;gap:3px}
.platform-selector button{flex:1;border:1px solid transparent;border-radius:7px;background:transparent;padding:8px 4px;font-size:12px;white-space:nowrap;color:var(--muted)}
.platform-selector button[aria-pressed=true]{border-color:var(--border);color:var(--brand);font-weight:650;background:var(--bg)}
.platform-content{padding:26px}
.download-title-row{display:flex;align-items:center;justify-content:space-between}
.download-title-row h3{font-size:20px}
.download-badge{color:var(--muted);background:var(--soft);border-radius:4px;padding:1px 7px;font-size:10px}
.platform-content>p:not(.download-footnote){color:var(--muted);font-size:13px;margin:11px 0 16px;min-height:44px}
.target-list{list-style:none;margin:0;padding:0}
.target-list li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--border);font-size:12px}
.target-list li>span,.target-list code,.source-command code{min-width:0;overflow-wrap:anywhere}
.target-list code{font-size:11px;color:var(--muted)}
.download-button{width:100%;margin-top:24px;border-radius:8px;min-height:42px;justify-content:space-between}
.download-footnote{font-size:11px;color:var(--muted);margin-top:13px;line-height:1.85;overflow-wrap:anywhere}
.source-install{border-top:1px solid var(--border);padding:16px 26px;background:var(--soft)}
.source-install summary{font-size:12px;font-weight:550;cursor:pointer}
.source-install p{font-size:12px;color:var(--muted);margin:12px 0}
.source-command{display:flex;gap:12px;align-items:center}
.source-command code{white-space:pre-wrap;font-size:12px;flex:1;line-height:2;color:var(--text)}

/* Care and footer */
.care-section{border-top:1px solid var(--border);padding:44px 0 66px;display:flex;gap:28px;align-items:flex-start}
.care-section>div{min-width:0}
.care-mark{flex-shrink:0;color:var(--brand);font-family:serif;font-size:48px;line-height:1.3;opacity:.55}
.care-section h2{font-size:22px;letter-spacing:.5px}
.care-section p{color:var(--muted);font-size:14px;margin-top:10px;max-width:780px;line-height:1.9}
.care-section .care-note{font-size:12px}
.site-footer{border-top:1px solid var(--border);padding:30px 0 36px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:24px}
.footer-brand{font-size:16px}
.footer-brand .brand-mark{height:24px;width:24px;font-size:15px;border-radius:6px}
.footer-inner p{font-size:11px;color:var(--muted);text-align:center;line-height:1.9}
.footer-links{display:flex;flex-direction:column;align-items:flex-end;font-size:12px;color:var(--muted);line-height:1.9}

html[lang=en] h1{font-size:54px}
html[lang=en] .hero-name>span{display:none}
html[lang=en] .hero-description{font-size:18px}
html[lang=en] h2{letter-spacing:-.7px}
html[lang=en] .feature-detail{letter-spacing:0;font-size:10px}

@media(min-width:1440px){.hero{min-height:665px;padding-top:85px}}
@media(max-width:1000px){
 .container{width:calc(100% - 64px)}
 .hero{gap:32px;min-height:580px}
 h1,html[lang=en] h1{font-size:47px}
 .hero-description{font-size:17px}
 .feature-card{padding:22px}
 .download-section{gap:40px}
 .desktop-nav{gap:20px}
 .nav-wrap{padding:0 32px;gap:24px}
 .key-grid{grid-template-columns:minmax(0,1fr)}
}
/* Tablets use a full-width preview and panels instead of cramped columns. */
@media(max-width:960px){
 .desktop-nav{display:none}
 .nav-tools{margin-left:auto;gap:8px}
 .menu-button{display:block}
 .nav-wrap{padding-inline:24px;gap:12px}
 .site-header{height:64px}
 .language-button,.theme-button,.menu-button{min-width:44px;min-height:44px}
 .hero{grid-template-columns:minmax(0,1fr);min-height:0;gap:36px;padding-block:48px;text-align:center}
 .hero-copy>.eyebrow,.hero-actions{justify-content:center}
 .hero-visual{width:100%;max-width:640px;margin-inline:auto;padding:0 6px}
 .hero-description{font-size:18px}
 .feature-grid,.page-groups{grid-template-columns:repeat(2,minmax(0,1fr))}
 .download-section{grid-template-columns:minmax(0,1fr);gap:24px;padding-block:64px 48px}
 .download-intro{padding-top:0}
 .download-intro h2 br{display:none}
 .pages-section,.screens-section{padding-top:64px}
 .screen-scroll-hint{display:block}
 .screen-viewport img{min-width:1108px}
 .screen-showcase figcaption{display:block;padding:15px 18px;font-size:12px}
 .screen-showcase figcaption a{display:inline-block;margin-top:10px;min-height:44px;align-content:center}
 .screen-selector button,.platform-selector button,.copy-button{min-height:44px}
 .screen-selector{margin-bottom:12px;gap:6px}
 .footer-inner{flex-wrap:wrap;gap:20px}
 .footer-inner p{order:3;width:100%;text-align:left}
 .footer-links{margin-left:auto}
 .care-section{gap:20px;padding-bottom:40px}
 .care-mark{font-size:38px}
}
@media(max-width:600px){
 .container{width:calc(100% - 40px)}
 .nav-wrap{padding-inline:16px}
 .nav-divider{display:none}
 .nav-tools{gap:4px}
 .brand-zh{display:none}
 h1,html[lang=en] h1{font-size:43px;letter-spacing:-1.5px}
 .hero-description{font-size:16px}
 .hero-actions{gap:10px}
 .hero-actions .button{padding:9px 18px;font-size:13px}
 .hero-actions>.text-link{min-height:44px;display:inline-flex;align-items:center;margin-left:0}
 .hero-copy>.eyebrow{font-size:9px;letter-spacing:1.3px}
 .quick-start{padding-bottom:58px}
 .command-bar{padding:11px 12px 11px 16px}
 .command-bar>code{font-size:13px}
 .command-note .note-separator{display:block;height:0;overflow:hidden}
 .feature-grid,.page-groups{grid-template-columns:minmax(0,1fr)}
 .section-heading h2{font-size:26px}
 .section-heading>p:last-child{line-height:1.85}
 .feature-card{padding:24px}
 .feature-card p{font-size:14px}
 .feature-detail,html[lang=en] .feature-detail{font-size:11px}
 .key-card{flex-direction:column;gap:12px}
 .download-intro h2{font-size:32px}
 .platform-content{padding:22px 18px}
 .source-install{padding:16px 18px}
 .source-command{align-items:flex-start;flex-wrap:wrap}
 .source-command code{flex-basis:100%}
 .target-list li{align-items:flex-start;flex-direction:column;gap:3px}
 .download-title-row{flex-wrap:wrap;gap:8px}
 .care-section h2{font-size:19px}
 .preview-label{margin-left:0}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}