:root{--ink:#182233;--muted:#5b6678;--brand:#1463ff;--brand2:#0b3b98;--bg:#f5f8fc;--card:#fff;--line:#dbe3ef;--ok:#0a7c45;--bad:#b42318}*{box-sizing:border-box}[hidden]{display:none!important}html{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}body{margin:0;line-height:1.55}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.wrap{width:min(1120px,calc(100% - 32px));margin:auto}.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.head{min-height:68px;display:flex;align-items:center;gap:24px}.brand{font-weight:800;color:var(--ink);letter-spacing:-.02em}.nav{display:flex;gap:18px;margin-left:auto}.nav a{color:var(--ink);font-weight:650}.language{display:flex;gap:6px;align-items:center}.language a,.language span{font-size:.83rem;padding:6px 8px;border-radius:8px}.language span{background:#eaf1ff;color:var(--brand2);font-weight:750}.hero{padding:64px 0 44px;background:linear-gradient(135deg,#eef4ff,#fff)}h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.08;letter-spacing:-.04em;margin:.2em 0}h2{font-size:1.55rem;margin:0 0 14px}h3{margin:.2em 0 .5em}.lead{font-size:1.1rem;color:var(--muted);max-width:760px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.button,button{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;border:0;border-radius:10px;padding:11px 17px;font-weight:750;cursor:pointer}.button.secondary,button.secondary{background:#fff;color:var(--brand);border:1px solid var(--brand)}main{padding:36px 0 64px}.toolbar{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 24px}.search{flex:1;min-width:220px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit}.filters{display:flex;gap:8px;flex-wrap:wrap}.filter{background:#fff;color:var(--ink);border:1px solid var(--line);padding:8px 11px;font-weight:650}.filter.active{background:var(--brand);color:#fff}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card,.panel{background:var(--card);border:1px solid var(--line);border-radius:15px;box-shadow:0 5px 24px rgba(27,49,86,.06)}.card{padding:20px;display:flex;flex-direction:column}.card h2{font-size:1.18rem}.card p{color:var(--muted);flex:1}.tag{font-size:.76rem;font-weight:800;color:var(--brand2);text-transform:uppercase;letter-spacing:.06em}.panel{padding:24px;margin-bottom:22px}.breadcrumbs{font-size:.9rem;color:var(--muted);margin-bottom:16px}.tool-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);gap:22px}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field.checkbox{flex-direction:row;align-items:center;padding-top:26px}.field label{font-weight:700}.field input,.field select,.field textarea{width:100%;border:1px solid #b9c5d5;border-radius:9px;padding:11px;font:inherit;background:#fff}.field textarea{min-height:120px;resize:vertical}.field.checkbox input{width:auto}.result{margin-top:18px;background:#eef8f2;border-left:4px solid var(--ok);padding:15px;border-radius:8px;min-height:58px;white-space:pre-wrap;overflow-wrap:anywhere}.privacy{font-size:.86rem;color:var(--muted);margin-top:10px}.content-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.formula{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;background:#101827;color:#e9f0ff;padding:14px;border-radius:10px;overflow:auto}.faq details{border-top:1px solid var(--line);padding:12px 0}.faq summary{font-weight:750;cursor:pointer}.notice{padding:14px;border:1px solid #f1c78d;background:#fff7e8;border-radius:10px}.noresult{text-align:center;color:var(--muted);padding:28px}.site-footer{border-top:1px solid var(--line);padding:28px 0;background:#fff;color:var(--muted)}@media(max-width:860px){.grid{grid-template-columns:repeat(2,1fr)}.tool-layout,.content-grid{grid-template-columns:1fr}.nav{display:none}.head{flex-wrap:wrap;padding:10px 0}.language{margin-left:auto}}@media(max-width:560px){.grid,.fields{grid-template-columns:1fr}.field.full{grid-column:auto}.wrap{width:min(100% - 22px,1120px)}h1{font-size:2.15rem}.hero{padding:38px 0 28px}.language a,.language span{padding:5px;font-size:.75rem}.panel{padding:17px}}