:root{--color-primary: #213657;--color-primary-light: #4A8BE8;--color-primary-dark: #1B2D4A;--color-blue: #4A8BE8;--color-blue-hover: #3F7FE0;--color-blue-bg: #EAEFF5;--color-bg: #F4F6F9;--color-surface: #ffffff;--color-border: #E2E8F0;--color-text: #1A202C;--color-text-secondary: #6B7280;--color-text-inverse: #ffffff;--color-success: #16a34a;--color-warning: #d97706;--color-danger: #dc2626;--color-info: #4A8BE8;--font-family: "Inter", system-ui, -apple-system, sans-serif;--radius: 8px;--radius-sm: 4px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--shadow-lg: 0 4px 6px rgba(0, 0, 0, .1);--shadow-card: 0 2px 16px rgba(0, 0, 0, .06);--sidebar-width: 288px;--color-navy-900: #0f172a;--color-navy-800: #1e3a8a;--color-navy-600: #4338ca;--color-navy-200: #e2e8f0;--color-navy-300: #cbd5e1;--color-navy-100: #e0e9ff;--color-slate-400: #94a3b8;--header-height: 72px;--toolbar-h: 36px;--section-py: 72px;--container-max: 1200px;--segment-track-bg: var(--color-blue-bg);--segment-track-radius: var(--radius);--segment-track-padding: 4px;--segment-height: var(--toolbar-h);--segment-text: var(--color-text-secondary);--segment-text-hover: var(--color-text);--segment-active-bg: var(--color-surface);--segment-active-text: var(--color-text);--segment-active-shadow: var(--shadow-sm);--segment-button-radius: 6px;--segment-px: 16px;--segment-py: 8px;--segment-font-size: 13px;--segment-font-weight: 500}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);color:var(--color-text);background:var(--color-bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--color-blue);text-decoration:none}button{cursor:pointer;font-family:inherit}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 22px;border:none;border-radius:var(--radius);font-weight:600;font-size:14px;transition:all .15s;text-decoration:none;cursor:pointer;font-family:inherit}.btn--sm{padding:7px 16px;font-size:13px}.btn--primary{background:var(--color-blue);color:#fff}.btn--primary:hover{background:var(--color-blue-hover)}.btn--secondary{background:var(--color-blue-bg);color:var(--color-primary);border:none}.btn--secondary:hover{background:#dce5f0}.btn--outline{background:transparent;color:var(--color-text-inverse);border:1px solid rgba(255,255,255,.35)}.btn--outline:hover{background:#ffffff1a;border-color:#fff9}.btn--danger{background:var(--color-danger);color:#fff}.btn--danger:hover{opacity:.9}.btn--ghost{background:transparent;color:var(--color-text-secondary)}.btn--ghost:hover{background:var(--color-bg);color:var(--color-text)}.btn:disabled{opacity:.55;cursor:not-allowed}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:13px;font-weight:600;color:var(--color-text)}.form-group input,.form-group select,.form-group textarea{padding:9px 12px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:14px;font-family:inherit;background:var(--color-surface);color:var(--color-text);outline:none;transition:border-color .15s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--color-primary-light);box-shadow:0 0 0 2px #4a8be826}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}