:root{--bg:#F7F6F3;--fg:#1E1E1C;--muted:#6B6863;--line:#E3E0DA;--accent:#B5573A;--ok:#3E7C59;--card:#fff}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.45 Inter,-apple-system,system-ui,Segoe UI,Roboto,sans-serif}a{color:var(--accent)}button{font:inherit}.wrap{max-width:1280px;margin:0 auto;padding:16px}.top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--bg);position:sticky;top:0;z-index:5}.brand{font-weight:600;text-decoration:none;color:var(--fg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:10px;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;min-height:44px;text-decoration:none}.btn.secondary{background:transparent;color:var(--fg);border-color:var(--line)}.btn:disabled{opacity:.5;cursor:default}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}.muted{color:var(--muted)}.small{font-size:13px}h1{font-size:28px;line-height:1.2;margin:8px 0 12px}h2{font-size:20px;margin:16px 0 8px}input,textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin:8px 0}.tabs button{padding:10px 12px;border:0;background:none;color:var(--muted);border-bottom:2px solid transparent;cursor:pointer}.tabs button.active{color:var(--fg);border-color:var(--accent)}.plan-img{width:100%;border:1px solid var(--line);border-radius:8px;background:#fff}.viewer{width:100%;aspect-ratio:4/3;background:#e9e7e2;border:1px solid var(--line);border-radius:8px;position:relative;overflow:hidden}.viewer canvas{display:block;width:100%;height:100%}.feed{display:flex;flex-direction:column;gap:10px;max-height:60vh;overflow:auto;padding:4px 0}.msg{padding:10px 12px;border-radius:10px;max-width:92%}.msg.user{align-self:flex-end;background:#ece9e3}.msg.sys{align-self:flex-start;background:#fff;border:1px solid var(--line)}.steps{display:flex;gap:10px;flex-wrap:wrap}.steps span{color:var(--muted)}.steps span.done{color:var(--ok)}.steps span.now{color:var(--fg);font-weight:600}.wallet{display:flex;align-items:center;gap:10px;font-size:14px}.bar{flex:1;height:4px;background:var(--line);border-radius:2px;overflow:hidden}.bar i{display:block;height:100%;background:var(--ok)}.bar.low i{background:var(--accent)}.warn{color:var(--accent)}.grid{display:grid;grid-template-columns:1fr;gap:16px}@media (min-width:1000px){.grid.project{grid-template-columns:3fr 2fr}}.drop{border:2px dashed var(--line);border-radius:12px;padding:28px;text-align:center;background:#fff;cursor:pointer}.drop.over{border-color:var(--accent)}.code{display:flex;gap:6px}.code input{text-align:center;font-size:22px;letter-spacing:6px}.toast{position:fixed;bottom:16px;left:50%;transform:translate(-50%);background:var(--fg);color:#fff;padding:10px 14px;border-radius:10px;font-size:14px}.views{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}.views img{width:100%;border-radius:8px;border:1px solid var(--line)}.walk-wrap{position:fixed;top:0;right:0;bottom:0;left:0;background:#000;z-index:50}.walk-wrap iframe{width:100%;height:100%;border:0}.walk-close{position:fixed;top:10px;left:10px;z-index:51}.hidden{display:none!important}