:root{--bg:#f5f5f2;--panel:#fff;--panel2:#efefeb;--fg:#1c1c1c;--muted:#4d4d4d;--dim:#7c7c78;--line:#dcdcd6;--accent:#0a7f8c;--frame:#22c7d6;--mark:#ff8a3d}
:root[data-theme="dark"]{--bg:#121314;--panel:#1b1c1e;--panel2:#242528;--fg:#ececea;--muted:#bdbdb9;--dim:#8d8d89;--line:#2f3033;--accent:#4fd6e3;--frame:#2fd3e2;--mark:#ff9a55}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--bg:#121314;--panel:#1b1c1e;--panel2:#242528;--fg:#ececea;--muted:#bdbdb9;--dim:#8d8d89;--line:#2f3033;--accent:#4fd6e3;--frame:#2fd3e2;--mark:#ff9a55}}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:64px}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.8 "Segoe UI","Yu Gothic UI","Meiryo",sans-serif}
a{color:var(--accent)}
.mono{font-family:"Cascadia Mono",Consolas,monospace}
.wrap{width:min(1180px,calc(100% - 48px));margin-inline:auto}
header{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px dashed var(--line)}
header .wrap{height:56px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.02em;color:var(--fg);text-decoration:none}
.brand img{width:30px;height:30px;background:#fff;border-radius:3px}
header nav{display:flex;gap:4px;margin-left:auto;font-size:13px}
header nav a{color:var(--muted);text-decoration:none;padding:4px 10px;border:1px dashed transparent;border-radius:2px}
header nav a:hover{border-color:var(--frame);color:var(--fg)}
.top{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:48px;padding:56px 0 40px;align-items:center}
h1{font-size:40px;font-weight:700;margin:0 0 14px;line-height:1.2}
.top p{margin:0;color:var(--muted)}.top .meta{margin-top:16px;font-size:12px;color:var(--dim)}
.cta{display:flex;gap:16px;align-items:center;margin-top:22px;font-size:14px;flex-wrap:wrap}
.framed{position:relative;border:1.5px solid var(--frame);background:var(--panel)}
.framed::before,.framed::after{content:"";position:absolute;width:9px;height:9px;background:var(--frame)}
.framed::before{left:-5px;top:-5px}.framed::after{right:-5px;bottom:-5px}
.dim-tag{position:absolute;left:-1.5px;top:-22px;font:11px/20px "Cascadia Mono",Consolas,monospace;background:#1c1c1c;color:#fff;padding:0 6px;border-radius:2px 2px 0 0}
.framed video{display:block;width:100%;aspect-ratio:16/9;object-fit:contain;background:var(--panel2)}
.demo-bar{display:flex;align-items:center;gap:6px;margin-top:12px;font-size:13px}
.demo-bar{flex-wrap:wrap}.demo-bar button{white-space:nowrap;font:inherit;border:1px solid var(--line);background:var(--panel);color:var(--muted);padding:3px 12px;border-radius:2px;cursor:pointer}
.demo-bar button[aria-selected="true"]{border-color:var(--frame);color:var(--fg);box-shadow:inset 0 -2px 0 var(--frame)}
#demo-caption{margin-left:auto;color:var(--dim)}
section{padding:72px 0 0}
.sh{display:flex;align-items:baseline;gap:14px;margin:0 0 28px;border-bottom:1px dashed var(--line);padding-bottom:10px}
.sh .no{font:12px "Cascadia Mono",Consolas,monospace;color:var(--dim)}
.sh h2{font-size:22px;margin:0;font-weight:700}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px 40px}
.item .pic{position:relative;margin-top:22px}
.item a.glightbox{position:relative;border:1px dashed var(--line);background:var(--panel);transition:border-color .12s}
.item a.glightbox:hover{border:1px solid var(--frame)}
.item a.glightbox .dim-tag{opacity:0;transition:opacity .12s}.item a.glightbox:hover .dim-tag{opacity:1}
.item a.glightbox img{width:100%}
.item .alt{display:flex;gap:6px;margin-top:8px}.item .alt a.glightbox{border-style:solid}.item .alt a{width:72px}.item .alt img{aspect-ratio:1;object-fit:cover}
.item h3{font-size:17px;margin:14px 0 4px}.item p{margin:0;color:var(--muted);font-size:14.5px}
.item:first-child{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:40px;align-items:center}
.item:first-child .pic{margin-top:0}.item:first-child h3{margin-top:0;font-size:20px}
.usage{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:48px}
.marks{list-style:none;margin:0;padding:0;counter-reset:m}
.marks li{counter-increment:m;display:grid;grid-template-columns:34px 1fr;gap:12px;padding:0 0 22px}
.marks li::before{content:counter(m);width:26px;height:26px;border-radius:50%;background:var(--mark);color:#fff;font:700 13px/26px "Segoe UI",sans-serif;text-align:center;margin-top:2px}
.marks h3{margin:0;font-size:16px}.marks p{margin:2px 0 0;color:var(--muted);font-size:14.5px}
table.keys{width:100%;border-collapse:collapse;font-size:14px;background:var(--panel);border:1px solid var(--line)}
table.keys th,table.keys td{text-align:left;padding:8px 12px;border-bottom:1px solid var(--line)}table.keys thead th{font-size:12px;color:var(--dim);font-weight:600;background:var(--panel2)}
.keys-note{color:var(--dim);font-size:12.5px;margin:8px 0 0}
.tips{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.tips div{padding:16px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel)}
.tips .no{font:11px "Cascadia Mono",Consolas,monospace;color:var(--accent)}.tips h3{margin:4px 0 6px;font-size:15px}.tips p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.7}
.faq{columns:2;column-gap:40px}.faq details{break-inside:avoid;border-top:1px dashed var(--line);padding:2px 0}
.faq summary{cursor:pointer;padding:12px 0;font-weight:600;list-style:none;display:flex;gap:10px}.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";font:12px/1.9 "Cascadia Mono",Consolas,monospace;color:var(--accent)}
.faq p{margin:0 0 14px 22px;color:var(--muted);font-size:14.5px}
footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:80px;padding:18px 0 32px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--dim)}
footer nav{display:flex;gap:18px}footer a{color:var(--dim)}
@media (max-width:900px){header nav{display:none}.tools{margin-left:auto}.top,.usage,.grid,.item:first-child{grid-template-columns:1fr}.tips{grid-template-columns:1fr 1fr}.faq{columns:1}h1{font-size:32px}}
@media (max-width:560px){.tips{grid-template-columns:1fr}}
.tools{display:flex;gap:6px;align-items:center}.tool{height:34px;min-width:34px;display:grid;place-items:center;border-radius:6px;border:1px solid var(--line);background:var(--panel);color:var(--fg);cursor:pointer;padding:0 8px;font:600 13px/1 "Segoe UI","Yu Gothic UI",sans-serif}
.tool:hover{background:var(--panel2)}.tool:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.theme svg{width:18px;height:18px}.theme .sun{display:none}
:root[data-theme="dark"] .theme .sun{display:block}:root[data-theme="dark"] .theme .moon{display:none}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .theme .sun{display:block}:root:not([data-theme="light"]) .theme .moon{display:none}}
.tool.lang{display:inline-flex;align-items:center;gap:6px;padding:0 8px 0 10px}.tool.lang svg{width:16px;height:16px;flex:none}
.tool.lang svg.chev{width:12px;height:12px;color:var(--dim)}.tool.lang[aria-expanded="true"] svg.chev{transform:rotate(180deg)}
.langmenu{position:relative}
.lang-list{position:absolute;right:0;top:calc(100% + 4px);min-width:140px;margin:0;padding:4px;list-style:none;background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.18);z-index:30}
.lang-list[hidden]{display:none}
.lang-list a{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:5px;color:var(--fg);text-decoration:none;font-size:14px}
.lang-list a::before{content:"";width:3px;height:14px;border-radius:2px;background:transparent}
.lang-list a[aria-current="true"]::before{background:var(--accent)}
.lang-list a:hover,.lang-list a:focus-visible{background:var(--panel2);outline:none}
html.en-pending body{visibility:hidden}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;z-index:40;background:var(--panel);padding:6px 10px;border-radius:5px}
img{max-width:100%;height:auto;display:block}a.glightbox{cursor:zoom-in;display:block}
kbd{font-family:"Cascadia Mono",Consolas,monospace;font-size:.82em;padding:1px 6px;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;background:var(--panel2);white-space:nowrap;color:var(--fg)}
.store-badge{display:inline-flex}.store-badge img{height:40px;width:auto}.store-badge .on-dark{display:none}
:root[data-theme="dark"] .store-badge .on-light{display:none}:root[data-theme="dark"] .store-badge .on-dark{display:block}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .store-badge .on-light{display:none}:root:not([data-theme="light"]) .store-badge .on-dark{display:block}}
@media (max-width:560px){table.keys kbd{white-space:normal}table.keys th,table.keys td{padding:8px}}