:root{--bg: #0f1115;--panel: #181b22;--panel-2: #20242e;--line: #2a2f3a;--text: #e8eaf0;--muted: #9aa3b2;--accent: #ff7a59;--accent-2: #4f9dff}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,PingFang SC,Microsoft YaHei,system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}header{padding:18px 24px;border-bottom:1px solid var(--line);display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}header h1{font-size:18px;margin:0;letter-spacing:.5px}header .sub{color:var(--muted);font-size:13px}header nav{display:flex;gap:14px;margin-left:auto}header nav a{color:var(--muted);text-decoration:none;font-size:13px;padding:4px 10px;border-radius:6px;transition:.12s}header nav a:hover{color:var(--text);background:var(--panel-2)}header nav a.router-link-active{color:var(--accent)}main{display:grid;grid-template-columns:320px 1fr;gap:16px;padding:16px;align-items:start}@media (max-width: 860px){main{grid-template-columns:1fr}}.about{display:block;max-width:760px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}.panel h2{font-size:13px;color:var(--muted);margin:0 0 10px;text-transform:uppercase;letter-spacing:1px}.group{margin-bottom:18px}label.field{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}input[type=file]{width:100%;font-size:13px;color:var(--muted)}.drop{border:1.5px dashed var(--line);border-radius:10px;padding:22px 12px;text-align:center;color:var(--muted);font-size:13px;cursor:pointer;transition:.15s}.drop:hover{border-color:var(--accent);color:var(--text)}.presets{display:flex;flex-wrap:wrap;gap:8px}.presets button,.btn{background:var(--panel-2);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:7px 12px;font-size:13px;cursor:pointer;transition:.12s}.presets button:hover,.btn:hover{border-color:var(--accent)}.presets button.active{background:var(--accent);border-color:var(--accent);color:#1a1208;font-weight:600}input[type=range]{width:100%;accent-color:var(--accent)}.row{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}.seg{display:flex;gap:8px}.seg button{flex:1}.seg button.active{background:var(--accent-2);border-color:var(--accent-2);color:#06121f;font-weight:600}.btn.primary{background:var(--accent);border-color:var(--accent);color:#1a1208;font-weight:600;width:100%;padding:10px}.preview-wrap{display:flex;flex-direction:column;gap:14px}.canvas-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;justify-content:center;align-items:center;min-height:300px;overflow:auto}canvas{background:linear-gradient(45deg,#15171d 25%,transparent 25%),linear-gradient(-45deg,#15171d 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#15171d 75%),linear-gradient(-45deg,transparent 75%,#15171d 75%);background-size:24px 24px;background-position:0 0,0 12px,12px -12px,-12px 0;border-radius:6px;max-width:100%}.stats-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}.stats-head{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:12px}.stat{background:var(--panel-2);border-radius:8px;padding:10px 14px;min-width:90px}.stat .n{font-size:20px;font-weight:700}.stat .l{font-size:12px;color:var(--muted)}.swatches{display:flex;flex-wrap:wrap;gap:8px}.swatch{display:flex;align-items:center;gap:8px;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:6px 10px 6px 6px;cursor:pointer;font-size:12px;transition:.12s}.swatch:hover{border-color:var(--accent-2)}.swatch.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.swatch .chip{width:20px;height:20px;border-radius:50%;flex:none;box-shadow:inset 0 0 0 1px #00000040}.swatch .cnt{color:var(--muted)}.empty{color:var(--muted);font-size:14px;text-align:center;padding:40px 0;width:100%}.hint{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.5}.about p{font-size:14px;line-height:1.7;color:var(--text)}.about ul{font-size:14px;line-height:1.8;color:var(--muted);padding-left:20px}