:root{--g:#0e7490;--g2:#155e75;--ink:#1f2937;--mut:#6b7280;--line:#e5e7eb;--bg:#f8fafc}
*{box-sizing:border-box}body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--g2)}.wrap{max-width:1040px;margin:0 auto;padding:0 16px}.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:9}
.ec-head{background:#fff;border-bottom:1px solid var(--line)}.ec-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;min-height:58px}
.ec-logo{font-weight:800;font-size:1.25rem;text-decoration:none;color:var(--ink)}.ec-logo span{color:var(--g)}.ec-head nav a{margin-left:14px;text-decoration:none;font-weight:600}
main.wrap{padding-top:18px;padding-bottom:40px}h1{font-size:1.8rem;line-height:1.2;margin:.3em 0}h2{font-size:1.3rem;margin-top:1.6em}.crumb{font-size:.9rem;color:var(--mut)}
.ec-lead{font-size:1.08rem;color:#374151}.ec-tool,.ec-form,.ec-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:0 1px 3px #0001}
.ec-tool>*+*{margin-top:10px}
label{display:block;font-weight:600;font-size:.92rem}input,select,textarea{display:block;width:100%;margin-top:4px;padding:9px 10px;border:1px solid #cbd5e1;border-radius:8px;font:inherit;background:#fff}
input[type=checkbox]{display:inline;width:auto;margin:0 4px 0 0}.ec-chk{display:inline-block;font-weight:400;margin:4px 14px 4px 0}fieldset{border:1px solid var(--line);border-radius:10px;margin:10px 0}
.ec-form label{margin:10px 0}.ec-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px}
.ec-btn,.ec-btn2,.ec-x{display:inline-block;margin:6px 6px 0 0;padding:9px 16px;border-radius:8px;border:0;background:var(--g);color:#fff;font:inherit;font-weight:700;cursor:pointer;text-decoration:none}
.ec-btn:hover{background:var(--g2)}.ec-btn2{background:#e0f2fe;color:var(--g2)}.ec-x{background:none;color:#b91c1c;padding:2px 8px;margin:0}button:disabled{opacity:.55;cursor:default}
.ec-row{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end}.ec-row>input,.ec-row>select,.ec-row>label{flex:1 1 150px;width:auto}.ec-row>.ec-x{flex:0}
.ec-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;padding:0;list-style:none}.ec-card a{font-weight:700}.ec-card small,.ec-course small{display:block;color:var(--mut)}
.ec-ic{font-size:1.6rem}.ec-hero{padding:24px 0 8px}.ec-hero h1{font-size:2.1rem}
.ec-courses{list-style:none;padding:0}.ec-course{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0}.ec-course[hidden]{display:none}
.ec-filter{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px}.ec-filter label{flex:1 1 160px}
.ec-note{font-size:.88rem;color:var(--mut)}.ec-out{background:#f0f9ff;border-radius:10px;padding:12px;min-height:1em}.ec-out:empty{display:none}.ec-big{font-size:2rem;font-weight:800}
.ec-ai-text{white-space:pre-wrap}.ec-list{padding-left:1.1em}.ec-list li{margin:4px 0}.ec-done span{text-decoration:line-through;color:var(--mut)}.ec-late span{color:#b91c1c}
.ec-front{font-size:1.3rem;font-weight:700}.ec-back{font-size:1.1rem;color:var(--g2)}
.ec-table{border-collapse:collapse;width:100%;max-width:520px}.ec-table td,.ec-table th{border:1px solid var(--line);padding:6px 8px;text-align:left}
.ec-safety{background:#fffbeb;border:1px solid #fcd34d;border-radius:12px;padding:12px 14px;margin:16px 0}.ec-dl dt{font-weight:700}.ec-dl dd{margin:0 0 8px}
.ec-report summary{cursor:pointer;color:#b91c1c;margin-top:14px}.ec-manage input{font-size:.85rem}.ec-msg{font-weight:600}.ec-empty{color:var(--mut)}
.ec-faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0}.ec-faq summary{font-weight:700;cursor:pointer}
.ec-pages a{margin-right:10px}.ec-ad-slot:empty{display:none}
.ec-foot{border-top:1px solid var(--line);background:#fff;font-size:.9rem;color:var(--mut);padding:20px 0}.ec-foot nav a{margin-right:14px;display:inline-block;margin-bottom:6px}
@media(max-width:600px){.ec-head nav a{margin:0 10px 0 0}h1{font-size:1.5rem}}