:root{--bg:#f4f6fb;--card:#fff;--ink:#14213d;--mute:#5b6478;--line:#e2e6ef;--acc:#2457c5;--ok:#15803d;--info:#64748b;--warn:#b45309;--crit:#b91c1c}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 -apple-system,"Segoe UI",Helvetica,Arial,sans-serif}
.wrap{max-width:880px;margin:0 auto;padding:0 18px}.top{background:var(--ink);color:#fff;padding:12px 0}.top .wrap{display:flex;gap:12px;align-items:baseline}
.logo{font-weight:800;font-size:20px;letter-spacing:.5px}.tag{opacity:.75;font-size:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;margin:18px 0}
h1{margin:0 0 6px;font-size:28px}h2{margin:0 0 6px;font-size:20px}.fine{color:var(--mute);font-size:13px}
.row{display:flex;gap:8px;margin:12px 0}.row input{flex:1;min-width:0;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:16px}
button,.btn{background:var(--acc);color:#fff;border:0;border-radius:10px;padding:11px 18px;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block}
button:disabled{background:#9aa6bf;cursor:not-allowed}.sr{position:absolute;left:-9999px}
.head{display:flex;gap:16px;align-items:center}.grade{width:72px;height:72px;border-radius:16px;display:grid;place-items:center;font-size:40px;font-weight:800;color:#fff;background:var(--info);flex:none}
.g-A{background:var(--ok)}.g-B{background:#4d7c0f}.g-C{background:var(--warn)}.g-D{background:#c2410c}.g-F{background:var(--crit)}
.grp h3{font-size:14px;text-transform:uppercase;letter-spacing:.6px;color:var(--mute);margin:18px 0 6px}
.f{border-left:4px solid var(--line);padding:8px 12px;margin:6px 0;background:#fafbfe;border-radius:6px}
.f.critical{border-color:var(--crit)}.f.warn{border-color:var(--warn)}.f.ok{border-color:var(--ok)}.f.info{border-color:var(--info)}
.f .t{font-weight:600}.f .d{color:var(--mute);font-size:14px;word-break:break-word}.f .x{font-size:14px;margin-top:4px}
.f .x b{color:var(--ink)}.copy{background:#e8eefc;color:var(--acc);padding:3px 9px;font-size:12px;margin-left:6px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:22px}@media(max-width:700px){.two{grid-template-columns:1fr}.head{align-items:flex-start}}
.err{color:var(--crit);font-weight:600}code{background:#eef1f7;padding:1px 5px;border-radius:5px;font-size:14px}footer{padding:10px 18px 30px}