:root{color-scheme:light;--ink:#182c30;--muted:#617477;--line:#dce5df;--accent:#166956}*{box-sizing:border-box}body{margin:0;background:#f5f7f2;color:var(--ink);font:16px/1.7 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}main{max-width:1100px;margin:auto;padding:64px 28px}header{border-top:4px solid var(--accent);padding-top:24px}.eyebrow{font:600 12px/1.5 ui-monospace,monospace;letter-spacing:.16em;color:var(--accent)}h1{font-size:clamp(42px,7vw,76px);line-height:1.12;letter-spacing:-.055em;margin:24px 0}header p{color:var(--muted);max-width:640px}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:48px 0 24px}.toolbar label{flex:1;max-width:440px}input{width:100%;padding:13px 16px;border:1px solid #9aada5;border-radius:8px;background:#fff;font:inherit;color:var(--ink)}input:focus{outline:3px solid #95c8b5;outline-offset:2px}.count{color:var(--muted);font-size:14px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px;display:flex;flex-direction:column;min-height:290px}.card[hidden]{display:none}.number{font:13px ui-monospace,monospace;color:var(--muted)}h2{font-size:23px;line-height:1.45;margin:18px 0 8px}.description{color:var(--muted);margin:0 0 22px}.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}.tag{font-size:12px;padding:3px 9px;background:#edf4ef;border-radius:4px;color:var(--accent)}.links{display:flex;gap:18px;margin-top:24px}a{color:var(--accent);text-underline-offset:5px}a:focus-visible{outline:3px solid #95c8b5;outline-offset:4px}.links a:first-child{font-weight:650}footer{margin-top:52px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}#empty{color:var(--muted)}@media(max-width:600px){main{padding:32px 20px}.toolbar{align-items:stretch;flex-direction:column;margin-top:32px}.grid{grid-template-columns:1fr}.card{min-height:260px}}