:root{--bg:#0e1116;--panel:#161b22;--panel-2:#1c2330;--border:#2a3340;--text:#e6edf3;--muted:#9aa7b5;--accent:#f0a202;--accent-2:#7dd3fc;--danger:#f87171;--ok:#34d399;--shadow:0 10px 30px rgba(0,0,0,0.35)}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}button,input,select{font:inherit;color:inherit}a{color:var(--accent-2)}.app-shell{min-height:100dvh;display:flex;flex-direction:column}.topbar{justify-content:space-between;gap:8px;padding:max(10px,env(safe-area-inset-top)) 12px 10px;border-bottom:1px solid var(--border);background:#161b22;position:-webkit-sticky;position:sticky;top:0;z-index:20;flex-shrink:0}.brand,.topbar{display:flex;align-items:center}.brand{gap:10px;font-weight:700;letter-spacing:.02em}.brand-mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#f0a202,#fb7185);box-shadow:var(--shadow)}.home{max-width:760px;margin:0 auto;padding:24px 16px 40px}.hero h1{font-size:clamp(1.6rem,4vw,2.3rem);margin:8px 0}.hero p{color:var(--muted);line-height:1.6;margin:0 0 22px}.card-grid{display:grid;grid-gap:12px;gap:12px}@media (min-width:720px){.card-grid{grid-template-columns:1fr 1fr}}.card,.panel{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:16px;box-shadow:var(--shadow)}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--panel-2);border-radius:12px;min-height:48px;padding:10px 14px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%}.btn:hover{border-color:#3d4a5c}.btn.primary{background:#f0a202;color:#1a1203;border-color:#f0a202;font-weight:700}.btn.ghost{background:transparent}.btn.danger{border-color:#7f1d1d;color:var(--danger)}.btn:disabled{opacity:.5;cursor:not-allowed}.hidden-input{display:none}.preview-wrap{margin-top:16px;position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--border);background:#11161d}.preview-wrap canvas,.preview-wrap img,.preview-wrap video{display:block;width:100%;height:auto;max-height:58dvh;object-fit:contain;background:#0b0e13}.hint,.status,.warn{color:var(--muted);font-size:.92rem;line-height:1.5}.warn{color:#fbbf24}.editor-page{height:100dvh;height:100svh;display:grid;grid-template-rows:auto minmax(160px,1fr) auto minmax(120px,34vh);overflow:hidden;overscroll-behavior:none}.canvas-wrap{position:relative;min-height:160px;background:#0b0e13;touch-action:none;overscroll-behavior:none}.canvas-wrap canvas{width:100%;height:100%;display:block;touch-action:none}.canvas-wrap canvas.is-pan{cursor:-webkit-grab;cursor:grab}.canvas-wrap canvas.is-pan:active{cursor:-webkit-grabbing;cursor:grabbing}.toolbar{display:flex;gap:8px;overflow-x:auto;padding:10px 12px 10px 16px;border-top:1px solid var(--border);background:var(--panel)}.tool{flex:0 0 auto;min-width:76px;min-height:52px;border-radius:12px;border:1px solid var(--border);background:var(--panel-2);padding:8px 10px;cursor:pointer}.tool.active{border-color:var(--accent);color:var(--accent);background:#2a2110}.tool.accent{border-color:#fb7185;color:#fda4af;background:#2a151c}.tool-stack{display:flex;flex-direction:column;gap:4px;flex:0 0 auto}.tool-stack .tool{min-height:34px;min-width:76px;padding:5px 8px;font-size:13px}.field.length-edit input{font-size:22px;font-weight:700;min-height:48px}.props{border-top:1px solid var(--border);background:var(--panel);padding:12px;display:grid;grid-gap:10px;gap:10px;overflow:auto;min-height:0}.props .btn{min-height:44px}.props-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:8px;gap:8px}@media (min-width:900px){.editor-page{grid-template-columns:1fr 300px;grid-template-rows:auto 1fr auto}.topbar{grid-column:1/-1}.canvas-wrap{grid-column:1;grid-row:2}.toolbar{grid-column:1;grid-row:3}.props{grid-column:2;grid-row:2/4;border-top:0;border-left:1px solid var(--border);overflow:auto}}label.field{display:grid;grid-gap:4px;gap:4px;font-size:12px;color:var(--muted)}label.field.edge-active{color:#fbbf24}label.field.edge-active input{border-color:#f0a202;box-shadow:0 0 0 1px #f0a202}.edge-banner{margin:0;padding:8px 10px;border-radius:10px;background:#2a2110;color:#fbbf24;font-weight:700;font-size:14px}label.field input{min-height:40px;border-radius:10px;border:1px solid var(--border);background:#0e131a;padding:0 10px}.check{align-items:center;color:var(--muted)}.check,.top-actions{display:flex;gap:8px}.top-actions{flex-wrap:wrap}.top-actions .btn,.topbar .btn{width:auto;min-width:72px;padding:8px 12px;min-height:44px}a.btn{text-decoration:none;color:var(--text)}.back-btn{width:auto;min-width:88px;min-height:44px;padding:8px 14px;font-weight:700;background:var(--panel-2);color:var(--text)!important}.confirm-btn{width:100%;min-height:48px;font-weight:700}.corner-dot{position:absolute;width:22px;height:22px;margin:-11px 0 0 -11px;border-radius:50%;background:#f0a202;border:2px solid #fff;pointer-events:none}.install-banner{margin-top:16px;padding:12px 14px;border-radius:12px;background:#1d2836;border:1px dashed #3b4d63;color:var(--muted)}