:root{--bg:#f7f8fa;--surface:#fff;--border:#e2e5ea;--text:#1c1e21;--muted:#687078;--accent:#e8590c;--accent-hover:#d9480f;--code-bg:#2b2d31;--code-text:#e6e6e6;--success:#2b8a3e;--success-bg:#ebfbee;--error:#c92a2a;--error-bg:#fff5f5}*{box-sizing:border-box}body{color:var(--text);background:var(--bg);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}.hero{text-align:center;border-bottom:1px solid var(--border);background:linear-gradient(135deg,#fff1e6 0%,#f7f8fa 100%);padding:3.5rem 1.5rem 2.5rem}.hero h1{letter-spacing:-.02em;margin:0 0 .5rem;font-size:2.5rem}.tagline{color:var(--muted);margin:0 0 1.25rem;font-size:1.1rem}.tagline a,.footer a{color:var(--accent);text-decoration:none}.tagline a:hover,.footer a:hover{text-decoration:underline}.github-link{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:8px;padding:.5rem 1rem;font-weight:600;text-decoration:none;transition:border-color .15s,transform 50ms;display:inline-block}.github-link:hover{border-color:var(--accent)}.github-link:active{transform:translateY(1px)}.container{max-width:720px;margin:0 auto;padding:2rem 1.5rem 3rem}.toc{background:var(--surface);border:1px solid var(--border);border-radius:12px;width:240px;max-height:80vh;padding:1rem;font-size:.85rem;position:fixed;top:50%;left:max(1rem,50% - 620px);overflow-y:auto;transform:translateY(-50%)}.toc a{white-space:nowrap}.toc-title{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:.5rem;font-size:.7rem;font-weight:700;display:block}.toc ul{margin:0;padding:0;list-style:none}.toc li{margin:0}.toc a{color:var(--text);border-left:2px solid #0000;border-radius:6px;padding:.45rem .5rem;text-decoration:none;display:block}.toc a:hover{background:var(--bg);color:var(--text);border-left-color:#0000}.toc a.active{color:var(--text);background:0 0;border-left-color:#0000;font-weight:600}.example{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:1.5rem;padding:1.5rem;scroll-margin-top:1rem}.example h2{margin:0 0 .5rem;font-size:1.25rem}.example p{color:var(--muted);margin:0 0 1rem}.example code{font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace;font-size:.875em}.example p code{color:var(--accent-hover);background:#f1f3f5;border-radius:4px;padding:.1rem .35rem}.btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:.5rem;padding:.55rem 1.1rem;font-size:.95rem;font-weight:600;transition:background .15s,transform 50ms;display:inline-flex}.btn:hover{background:var(--accent-hover)}.btn:active{transform:translateY(1px)}.input,.textarea{border:1px solid var(--border);width:100%;color:var(--text);background:#fff;border-radius:8px;margin-bottom:.75rem;padding:.55rem .75rem;font-family:inherit;font-size:.95rem}.textarea{resize:vertical}.demo-dialog{border:1px dashed var(--border);color:var(--text);background:#fafbfc;border-radius:8px;margin:0 0 .25rem;padding:1rem;display:block;position:static}.example pre.shiki{border-radius:8px;margin:1rem 0 0;padding:1rem;font-size:.875rem;line-height:1.5;overflow-x:auto}.example pre.shiki code{font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace}.supported{color:var(--success);font-weight:600}.unsupported{color:var(--error);font-weight:600}.alert{z-index:1000;border:1px solid;border-radius:8px;align-items:center;gap:1rem;max-width:90%;padding:.75rem 1rem;font-weight:600;display:flex;position:fixed;top:1rem;left:50%;transform:translate(-50%);box-shadow:0 4px 16px #0000001a}.alert-success{color:var(--success);background:var(--success-bg);border-color:#b2f2bb}.alert-error{color:var(--error);background:var(--error-bg);border-color:#ffc9c9}.alert-close{color:inherit;cursor:pointer;background:0 0;border:none;padding:0;font-size:1.25rem;line-height:1}.footer{text-align:center;color:var(--muted);padding:2rem 1.5rem 3rem}@media (width<=1160px){.toc{z-index:900;-webkit-backdrop-filter:saturate(180%)blur(8px);backdrop-filter:saturate(180%)blur(8px);background:#ffffffd9;border-top:none;border-left:none;border-right:none;border-radius:0;width:auto;max-height:none;margin:0;position:sticky;top:0;left:auto;transform:none}.toc-title{display:none}.toc ul{-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:.25rem;display:flex;overflow-x:auto}.toc ul::-webkit-scrollbar{display:none}.toc li{flex:none}.toc a{white-space:nowrap;border-bottom:2px solid #0000;border-left:none;border-radius:0}.toc a:hover,.toc a.active{border-left-color:#0000;border-bottom-color:var(--accent);background:0 0}.example{scroll-margin-top:3.5rem}}@media (width<=600px){.hero{padding:2.5rem 1rem 2rem}.hero h1{font-size:2rem}.container{padding:1.5rem 1rem 2.5rem}.example{padding:1.25rem}.alert{max-width:calc(100% - 2rem)}}