:root{--color-brand: #3E57FF;--color-brand-light: #eef2ff;--color-brand-bg: #f5f3ff;--color-success: #16a34a;--color-success-light: #f0fdf4;--color-success-border: #bbf7d0;--color-success-text: #2f6b4f;--color-danger: #FE6A06;--color-danger-light: #fef2f2;--color-danger-border: #fecaca;--color-warning: #f59e0b;--color-warning-light: #fffbeb;--color-warning-border: #fde68a;--color-warning-text: #92400e;--color-brand-border: #bfdbfe;--color-focus-ring: #93c5fd;--color-error-border: #fca5a5;--text-primary: #0f172a;--text-secondary: #334155;--text-tertiary: #64748b;--text-muted: #94a3b8;--text-inverse: #ffffff;--text-brand: #3E57FF;--text-sm: 12px;--text-base: 14px;--text-md: 18px;--text-lg: 22px;--fw-normal: 400;--fw-medium: 500;--fw-semibold: 600;--fw-bold: 700;--bg-app: #f8fafc;--bg-card: #ffffff;--bg-subtle: #f1f5f9;--bg-hover: #f8fafc;--bg-active: #eef2ff;--border-light: #e2e8f0;--border-base: #cbd5e1;--border-strong: #94a3b8;--color-dark-900: #111827;--color-dark-800: #1f2937;--color-dark-600: #4b5563;--color-accent: #6366f1;--color-accent-hover: #4f46e5;--color-accent-light: #818cf8;--color-accent-border: #c7d2fe;--color-accent-bg: #e9e5ff;--color-purple: #8b5cf6;--shadow-sm: 0 1px 3px rgba(15, 23, 42, .06);--shadow-md: 0 4px 12px rgba(15, 23, 42, .08);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .12);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--primary-color: var(--color-brand);--bg-color: var(--bg-app);--card-bg: var(--bg-card);--success-color: var(--color-success);--error-color: var(--color-danger);--text-heading: var(--text-primary);--text-body-old: var(--text-secondary);--text-helper: var(--text-tertiary);--border-color: var(--border-light);--hover-bg: var(--bg-hover);--radius-card: var(--radius-md);--radius-btn: var(--radius-sm)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,SF Pro,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei UI,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-color);color:var(--text-body);font-size:14px}h1,h2,h3,h4,h5,h6{color:var(--text-heading)}input,textarea,select{font-family:inherit;color:var(--text-body);transition:all .2s}input:focus,textarea:focus{outline:none}.card{border-radius:var(--radius-card);border:1px solid var(--border-color);background:var(--card-bg);transition:all .2s}.card:hover{box-shadow:var(--shadow-hover)}.btn-primary{background:var(--primary-color);color:#fff;border:none;border-radius:var(--radius-btn)}.btn-secondary{background:#fff;color:var(--text-heading);border:1px solid var(--border-color);border-radius:var(--radius-btn)}.btn-text{background:transparent;color:var(--text-body);border:none}.btn-text:hover{background:var(--hover-bg)}.scroll-to-bottom{display:none!important}