:root{--bg:#fafbfc;--card:#fff;--ink:#1a1a2e;--muted:#6b7280;--line:#e5e7eb;--brand:#6c5ce7;--brand-dark:#5b4bc4;--brand-soft:#f3f0ff;--accent:#fd79a8;--radius:14px;--shadow:0 2px 8px rgba(26,26,46,.06)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:var(--brand-dark);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:1020px;margin:0 auto;padding:0 20px}
.hd{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}.hd .in{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-weight:800;font-size:20px;color:var(--ink)}.logo span{color:var(--brand)}
.nav{display:flex;gap:2px;flex-wrap:wrap}.nav a{padding:8px 12px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:500}.nav a:hover,.nav a.on{background:var(--brand-soft);color:var(--brand-dark);text-decoration:none}
.hero{padding:40px 0 16px}.hero h1{font-size:clamp(28px,5vw,42px);line-height:1.15;margin:0 0 12px;font-weight:800}.hero .sub{color:var(--muted);font-size:17px;max-width:640px}
.badge{display:inline-block;background:var(--brand-soft);color:var(--brand-dark);border-radius:999px;padding:3px 12px;font-size:13px;font-weight:700;margin-bottom:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:20px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;text-decoration:none;color:var(--ink);display:block;transition:.15s}.card:hover{border-color:var(--brand);box-shadow:var(--shadow);text-decoration:none}.card b{display:block;margin-bottom:4px;font-size:16px}.card span{font-size:13.5px;color:var(--muted)}
section{padding:24px 0}section h2{font-size:24px;margin:32px 0 12px;font-weight:700}section h3{font-size:18px;margin:20px 0 8px}
section p,section li{color:#374151;max-width:740px}section ul{padding-left:20px;list-style:disc}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:20px 0}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px}.feat b{display:block;margin-bottom:6px;font-size:16px}.feat span{font-size:14px;color:var(--muted)}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin-bottom:10px}.faq summary{font-weight:700;cursor:pointer}.faq p{margin:10px 0 0}
.steps{counter-reset:s;list-style:none;padding:0;margin:16px 0}.steps li{counter-increment:s;position:relative;padding:0 0 14px 44px;color:#374151;max-width:700px}.steps li:before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--brand-soft);color:var(--brand-dark);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}
.crumbs{font-size:13.5px;color:var(--muted);padding:14px 0 0}.crumbs a{color:var(--muted)}
.cta{display:inline-flex;padding:12px 24px;border-radius:10px;background:var(--brand);color:#fff;font-weight:700;font-size:15px;margin-top:16px;text-decoration:none}.cta:hover{background:var(--brand-dark);text-decoration:none}
.hero-cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:6px}.hero-cta .cta{margin-top:6px}.hero-cta-note{font-size:13px;color:var(--muted)}
.ft{background:#1a1a2e;color:#a0a0b8;margin-top:48px;padding:32px 0;font-size:14px}.ft a{color:#d0d0e0}.ft ul{list-style:none;padding:0;margin:8px 0 0}.ft li{margin:4px 0}
.related{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;margin:16px 0}.related a{display:block;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px;text-decoration:none;color:var(--ink)}.related a:hover{border-color:var(--brand)}.related b{display:block;font-size:14.5px}.related span{font-size:13px;color:var(--muted)}
.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin:20px 0}.plan{background:var(--card);border:2px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center}.plan.pro{border-color:var(--brand)}.plan h3{margin:0;font-size:18px}.plan .price{font-size:32px;font-weight:800;margin:12px 0}.plan .price small{font-size:14px;color:var(--muted)}.plan ul{list-style:none;padding:0;margin:12px 0;text-align:left}.plan li{padding:4px 0;border-bottom:1px solid var(--line);font-size:14px;color:#374151}.plan li:last-child{border:0}
#fs-tool{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.fst-drop{border:2px dashed var(--brand);border-radius:12px;padding:36px 16px;text-align:center;cursor:pointer;transition:.15s;background:var(--brand-soft)}
.fst-drop.over{background:#ebe5ff}
.fst-drop-in b{display:block;font-size:18px;margin:8px 0 4px}
.fst-drop-in span{color:var(--muted);font-size:14px}
.fst-drop-icon{font-size:34px}
.fst-samples{margin-top:14px;font-size:13.5px;color:var(--muted)}
.fst-samples button{margin:0 4px;padding:5px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:13px}
.fst-samples button:hover{border-color:var(--brand);color:var(--brand-dark)}
.fst-stage{position:relative;border-radius:12px;overflow:hidden;background:#111;display:flex;justify-content:center}
.fst-stage canvas{max-width:100%;height:auto;display:block}
.fst-compare{position:absolute;right:10px;bottom:10px;padding:7px 14px;border:0;border-radius:999px;background:rgba(0,0,0,.55);color:#fff;font-size:13px;cursor:pointer}
.fst-chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.fst-chip{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:13.5px;font-weight:600}
.fst-chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
.fst-chip-ai{opacity:.62;cursor:not-allowed;background:var(--brand-soft)}
.fst-ai{background:var(--brand-soft);border:1px solid #ddd6ff;border-radius:10px;padding:12px 14px;font-size:14px;color:#4c4368;margin-bottom:12px}
.fst-ai-panel{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:12px}
.fst-ai-panel b{display:block;font-size:14.5px;margin-bottom:8px}
.fst-ai-row{display:flex;gap:8px;flex-wrap:wrap}
.fst-ai-row input{flex:1;min-width:180px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px}
.fst-ai-row button{padding:10px 18px;border:0;border-radius:8px;background:var(--brand);color:#fff;font-weight:700;cursor:pointer}
.fst-ai-row button:disabled{opacity:.55;cursor:wait}
.fst-ai-status{font-size:13.5px;color:var(--muted);margin-top:8px;min-height:18px}
.fsdemo{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.fsdemo-fig{margin:0;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.fsdemo-fig canvas{width:100%;height:auto;display:block}
.fsdemo-fig figcaption{padding:7px 12px;font-size:13px;color:var(--muted);font-weight:600;border-top:1px solid var(--line)}
.fsgal{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.fsgal-cell{padding:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--card);cursor:pointer;text-align:center}
.fsgal-cell:hover{border-color:var(--brand)}
.fsgal-cell canvas{width:100%;height:auto;display:block}
.fsgal-cell span{display:block;padding:8px;font-size:13px;font-weight:700;color:var(--ink)}
.fst-row{display:flex;gap:10px;align-items:center;margin:6px 0 4px;flex-wrap:wrap}
.fst-dl{display:inline-block;padding:12px 22px;border-radius:10px;background:var(--brand);color:#fff;font-weight:700;text-decoration:none}
.fst-dl:hover{background:var(--brand-dark)}
.fst-new{padding:12px 18px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;font-weight:600}
.fst-note{font-size:13px;color:var(--muted)}
@media(max-width:720px){.nav{display:none}.hd .in{height:52px}}