:root{color-scheme:light;--ink:#153238;--muted:#60777a;--accent:#12ae85;--border:#dce9e3;--bg:#f7faf8;--box:#fff}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--ink);line-height:1.6}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:progress;opacity:.6}a{color:#087f66}.wrap{max-width:1050px;margin:0 auto;padding-left:24px;padding-right:24px}.header{background:#fff;border-bottom:1px solid var(--border)}.header-inner{min-height:75px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:8px;text-decoration:none;font-weight:850;color:var(--ink);font-size:23px}.brand:first-letter{color:var(--accent)}nav{display:flex;gap:20px;align-items:center;font-size:12px;font-weight:700}nav span{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:#138f76}.intro{padding:65px 0 28px;max-width:780px}.eyebrow{font-size:10px;letter-spacing:.15em;font-weight:800;color:#119577}h1{font-weight:800;font-size:clamp(30px,5vw,55px);letter-spacing:-.045em;line-height:1.12;margin:20px 0}h1 em{color:#10a885;font-style:normal}.intro p{max-width:660px;color:var(--muted);font-size:16px}.panel{background:var(--box);border:1px solid var(--border);border-radius:17px;padding:28px;margin-bottom:18px}.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}h2{font-size:21px;letter-spacing:-.025em;margin:6px 0 20px}.chip{font-size:12px;font-weight:700;color:#087c64;padding:8px 12px;background:#e5f8f0;border-radius:40px}form label{display:block;font-size:13px;font-weight:700;margin-bottom:8px}.input-row{display:flex;gap:10px}input{flex:1;min-width:0;border:1px solid #cbddd5;border-radius:10px;padding:14px;background:#fff;color:#19393d}input:focus-visible,button:focus-visible{outline:3px solid #53dbb0;outline-offset:2px}form button{background:#0ea981;color:#fff;border:0;border-radius:10px;padding:13px 22px;font-size:13px;font-weight:800}.examples{display:flex;flex-wrap:wrap;align-items:center;gap:9px;padding:18px 0;color:var(--muted);font-size:12px}.examples button{padding:7px 12px;border:1px solid #cbe3d8;color:#13785f;background:#f6fbf8;border-radius:8px;font-size:12px}.notice{background:#eff8f4;color:#285d50;padding:12px 14px;border-radius:9px;font-size:13px;margin:0}.notice.error{background:#fff2e8;color:#834b22}.notice.success{background:#e3f7ec;color:#155b43}.detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;margin-bottom:18px}.detail{border:1px solid var(--border);background:#fbfdfc;padding:12px;border-radius:10px;min-width:0}.detail span{display:block;font-size:11px;color:var(--muted);margin-bottom:5px}.detail strong{font-size:14px;word-break:break-all}.hint{font-size:12px;color:var(--muted)}.notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;padding:18px 0 32px}.notes div{border-top:1px solid #b6d7cc;padding-top:18px}.notes strong{font-size:13px}.notes p{font-size:12px;color:var(--muted)}footer{padding-top:22px;padding-bottom:30px;font-size:12px;color:var(--muted);border-top:1px solid var(--border)}[hidden]{display:none!important}@media(max-width:720px){.header-inner{flex-wrap:wrap;padding-top:14px;padding-bottom:14px}nav{gap:10px}.intro{padding-top:38px}.panel{padding:18px}.panel-heading{align-items:flex-start;flex-direction:column}.input-row{flex-direction:column}.input-row button{width:100%}.detail-grid,.notes{grid-template-columns:1fr}}