:root{--brand: #f97316;--brand-strong: #ea580c;--brand-soft: #fff7ed;--brand-glow: rgba(249, 115, 22, .3);--accent: #ec4899;--text: #0f172a;--text-sub: #334155;--text-muted: #64748b;--text-faint: #94a3b8;--text-invert: #f8fafc;--bg: #ffffff;--bg-soft: #f8fafc;--bg-warm: #fffbf5;--card: #ffffff;--border: #e2e8f0;--border-strong: #cbd5e1;--success: #16a34a;--warn: #f59e0b;--error: #dc2626;--error-soft: #fee2e2;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-pill: 999px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 4px 12px rgba(15, 23, 42, .06);--shadow-lg: 0 12px 28px rgba(15, 23, 42, .08);--font-sans: -apple-system, BlinkMacSystemFont, "Inter", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;--font-mono: "SF Mono", "JetBrains Mono", Consolas, "Microsoft YaHei", monospace}*{box-sizing:border-box;margin:0;padding:0}html,body,#app{height:100%;min-height:100vh}body{font-family:var(--font-sans);background:var(--bg-soft);color:var(--text-sub);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--brand);text-decoration:none}a:hover{color:var(--brand-strong)}button{font-family:inherit;cursor:pointer;border:none;background:transparent}.tool-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm)}.tool-title{font-size:22px;font-weight:700;color:var(--text);letter-spacing:-.01em}.tool-sub{font-size:13.5px;color:var(--text-muted);margin-top:6px}.tool-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.tool-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.tool-field{display:flex;flex-direction:column;gap:8px;min-width:0}.tool-label{font-size:13px;font-weight:600;color:var(--text);display:flex;align-items:center;justify-content:space-between}.tool-input,.tool-textarea{width:100%;border:1.5px solid var(--border);border-radius:var(--radius-md);background:var(--bg);color:var(--text);font-family:inherit;font-size:14px;line-height:1.65;padding:12px 14px;outline:none;transition:border-color .15s,box-shadow .15s}.tool-input::placeholder,.tool-textarea::placeholder{color:var(--text-faint)}.tool-input:focus,.tool-textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-glow)}.tool-textarea{resize:vertical;min-height:clamp(220px,36vh,480px)}.tool-output{width:100%;min-height:clamp(220px,36vh,480px);border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-warm);padding:14px 16px;overflow:auto;white-space:pre-wrap;word-break:break-word;font-size:14px;line-height:1.7}.tool-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--card);color:var(--text-sub);font-size:14px;cursor:pointer;transition:border-color .15s,color .15s,background-color .15s}.tool-btn:hover:not(:disabled){border-color:var(--brand);color:var(--brand)}.tool-btn:disabled{opacity:.5;cursor:not-allowed}.tool-btn--primary{background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);border-color:transparent;color:#fff;box-shadow:0 4px 14px var(--brand-glow)}.tool-btn--primary:hover:not(:disabled){color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px var(--brand-glow)}.tool-seg{display:inline-flex;background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius-pill);padding:3px}.tool-seg button{border:none;background:transparent;color:var(--text-muted);font-size:13px;padding:6px 14px;border-radius:var(--radius-pill);cursor:pointer;transition:all .15s}.tool-seg button:hover{color:var(--text)}.tool-seg button.is-active{background:var(--card);color:var(--brand);font-weight:600;box-shadow:var(--shadow-sm)}@media (max-width: 640px){.tool-seg{display:flex;flex-wrap:wrap;gap:4px;width:100%}.tool-seg button{flex:1 1 auto;min-width:0;padding:7px 10px;font-size:12.5px}}.tool-hint{font-size:12.5px;color:var(--text-muted);line-height:1.6}.reroll-row{display:flex;gap:10px;margin-top:18px;padding-top:14px;border-top:1px dashed var(--border)}.reroll-row .tool-btn{font-size:13px;padding:7px 14px}.tool-error{font-size:13px;color:var(--error);background:var(--error-soft);border-left:3px solid var(--error);border-radius:var(--radius-sm);padding:10px 12px}.tool-badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:600;letter-spacing:.04em;padding:2px 8px;border-radius:var(--radius-pill);background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff}