:root{--ink:#111;--mut:#666;--line:#e6e6e6;--line2:#d4d4d4;--warn:#8a5a00}
*{box-sizing:border-box}html,body{margin:0}
body{background:#fff;color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.wrap{max-width:720px;margin:0 auto;padding:38px 24px 90px}
header{margin-bottom:18px}h1{font-size:21px;font-weight:600;margin:0 0 3px}
.sub{color:var(--mut);font-size:14px}
.ai-notice{font-size:12.5px;color:var(--mut);background:#f6f7f9;border:1px solid var(--line);border-radius:9px;padding:9px 12px;margin-bottom:16px}
select{font:inherit;color:var(--ink);background:#fff;border:1px solid var(--line2);border-radius:9px;padding:11px 13px;min-width:190px;cursor:pointer}
textarea#q{display:block;width:100%;font:inherit;color:var(--ink);background:#fff;border:1px solid var(--line2);border-radius:12px;padding:15px 17px;line-height:1.55;resize:none;overflow:hidden;min-height:60px}
textarea#q::placeholder{color:#9aa1ab}
textarea#q:focus,select:focus{outline:none;border-color:#111;box-shadow:0 0 0 3px rgba(17,17,17,.05)}
.controls{display:flex;gap:8px;align-items:center;margin-top:10px}
.controls button{margin-left:auto}
button{font:inherit;font-weight:500;cursor:pointer;border:0;border-radius:8px;padding:11px 20px;background:#111;color:#fff}
button:hover{background:#000}button:disabled{opacity:.5;cursor:wait}
.pii{font-size:12.5px;color:var(--warn);margin:10px 2px 0}
.steps{margin-top:24px;display:none}.steps.on{display:block}
.step{display:flex;align-items:center;gap:10px;padding:5px 0;font-size:14px;color:var(--mut)}
.step .ic{flex:none;width:16px;height:16px;border-radius:50%;border:2px solid var(--line2);position:relative}
.step.run .ic{border-color:#111;border-top-color:transparent;animation:spin .7s linear infinite}
.step.done .ic{border-color:#111;background:#111}.step.done{color:var(--ink)}
.step.done .ic::after{content:'';position:absolute;left:4px;top:1px;width:4px;height:8px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(40deg)}
.step.wait{opacity:.45}@keyframes spin{to{transform:rotate(360deg)}}
.answer{margin-top:26px;display:none;font-size:16px;line-height:1.65}.answer.on{display:block}
.answer h2{font-size:18px;font-weight:600;margin:18px 0 8px}.answer h3{font-size:16px;font-weight:600;margin:16px 0 6px}
.answer p{margin:9px 0}.answer ul{margin:9px 0;padding-left:22px}.answer li{margin:5px 0}.answer strong{font-weight:600}
.answer code{font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--mut)}
.cursor{display:inline-block;width:7px;height:16px;background:#111;margin-left:1px;vertical-align:-2px;animation:blink .9s step-end infinite}
@keyframes blink{50%{opacity:0}}
.disc{margin-top:16px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--mut)}
.cta{margin-top:16px}.cta a{display:inline-block;background:#111;color:#fff;text-decoration:none;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:500}
.src{margin-top:18px;display:none}.src.on{display:block}
.src .lab{font-size:13px;font-weight:600;margin-bottom:6px}
.chip{font-family:ui-monospace,Menlo,monospace;font-size:12.5px;color:var(--mut);padding:4px 0;border-top:1px solid var(--line)}
.foot{margin-top:34px;font-size:12.5px;color:var(--mut);border-top:1px solid var(--line);padding-top:14px;line-height:1.9}
.foot a{color:var(--mut)}
.legal{max-width:720px;margin:0 auto;padding:38px 24px 90px}
.legal h1{font-size:22px}.legal h2{font-size:16px;margin-top:22px}.legal li{margin:4px 0}