:root{--bg:#f7f8fc;--card:#fff;--ink:#0f172a;--muted:#64748b;--line:#e5e7eb;--brand:#4f46e5;--gpt:#10a37f;--claude:#d97757;--gemini:#4285f4;--grok:#111827;--ok:#16a34a;--no:#dc2626}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}a{color:var(--brand)}.wrap{max-width:1100px;margin:0 auto;padding:0 20px}.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}.logo{display:flex;gap:10px;align-items:center;font-weight:800;font-size:1.15rem;color:var(--ink);text-decoration:none}.logo img{width:28px}.logo-ai{color:#4f46e5}.nav nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-weight:500}.nav nav a:hover{color:var(--ink)}.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--muted);text-decoration:none;white-space:nowrap}.badge i{width:8px;height:8px;border-radius:50%;display:inline-block}.badge.yes{color:#fff;border-color:transparent}.badge.yes.chatgpt{background:var(--gpt)}.badge.yes.claude{background:var(--claude)}.badge.yes.gemini{background:var(--gemini)}.badge.yes.grok{background:var(--grok)}.badge.no{text-decoration:line-through;opacity:.7}.badge.unk{border-style:dashed}.dot-chatgpt{background:var(--gpt)}.dot-claude{background:var(--claude)}.dot-gemini{background:var(--gemini)}.dot-grok{background:var(--grok)}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 1px 2px #0f172a0a}.news{margin:48px 0;background:linear-gradient(135deg,#eef2ff,#fdf2f8);border:1px solid #e0e7ff;border-radius:20px;padding:28px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}.news h3{margin:0 0 4px}.news p{margin:0;color:var(--muted)}.nl{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.nl input{padding:11px 14px;border-radius:10px;border:1px solid #c7d2fe;font-size:1rem;min-width:220px}.nl button{padding:11px 18px;border-radius:10px;border:0;background:var(--brand);color:#fff;font-weight:700;font-size:1rem;cursor:pointer}.nl-msg{flex-basis:100%;margin:0;color:var(--muted);font-size:.9rem}.nl-msg:empty{display:none}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}footer{border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:.85rem}@media (max-width:640px){.nav nav a{margin-left:12px;font-size:.9rem}.nav nav a:nth-child(3),.nav nav a:nth-child(4){display:none}}h1,h2,h3{line-height:1.2;letter-spacing:-.01em}.page{max-width:760px;margin:0 auto;padding:40px 20px}.crumb{color:var(--muted);font-size:.9rem}.crumb a{color:var(--muted)}.page h1{font-size:clamp(1.7rem,4vw,2.4rem);margin:10px 0 16px}.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:18px 0}.facts .card{padding:14px}.facts small{color:var(--muted);display:block;font-weight:600;text-transform:uppercase;font-size:.72rem;letter-spacing:.04em}ol.steps{counter-reset:s;list-style:none;padding:0}ol.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px 12px 52px;margin:8px 0;position:relative}ol.steps li:before{content:counter(s);position:absolute;left:14px;top:11px;width:26px;height:26px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;display:grid;place-items:center;font-size:.85rem}.src{font-size:.88rem;color:var(--muted);word-break:break-all}.others{display:flex;gap:8px;flex-wrap:wrap}.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:8px 0}.faq summary{font-weight:700;cursor:pointer}.faq details p{margin:8px 0 0}.nitem{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin:12px 0}.nitem h2{font-size:1.12rem;margin:6px 0}.nitem p{margin:6px 0}.ncat{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--brand)}.nunc{display:inline-block;margin-left:8px;padding:1px 8px;border-radius:999px;border:1px dashed #f59e0b;color:#b45309;font-size:.72rem;font-weight:700;text-transform:uppercase}.nsrc{font-size:.88rem;color:var(--muted)}.nlist{list-style:none;padding:0}.nlist li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin:10px 0}.nlist small{color:var(--muted)}