:root{--primary: #4f46e5;--primary-light: #818cf8;--danger: #ef4444;--success: #10b981;--warning: #f59e0b;--info: #3b82f6;--text: #1e293b;--text-secondary: #475569;--text-muted: #94a3b8;--border: #e2e8f0;--border-soft: #f1f5f9;--bg: #f8fafc;--bg-card: #fff;--gradient-blue: linear-gradient(135deg, #4f46e5, #7c3aed);--gradient-green: linear-gradient(135deg, #10b981, #059669);--gradient-warm: linear-gradient(135deg, #f59e0b, #d97706);--gradient-red: linear-gradient(135deg, #ef4444, #dc2626);--gradient-cyan: linear-gradient(135deg, #06b6d4, #3b82f6);--shadow: 0 2px 8px rgba(0,0,0,.06);--shadow-lg: 0 8px 24px rgba(0,0,0,.1);--transition: all .2s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:14px;color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,textarea{font-family:inherit;outline:none}.app-layout{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--bg-card);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;position:sticky;top:0;height:100vh}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:20px 20px 16px;font-size:16px;font-weight:700;color:var(--text);border-bottom:1px solid var(--border)}.logo-mark{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;color:#fff;flex-shrink:0}.sidebar-menu{flex:1;padding:12px;overflow-y:auto}.sidebar-group-title{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;padding:16px 12px 6px}.sidebar-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;font-size:13px;color:var(--text-secondary);transition:var(--transition);margin-bottom:2px}.sidebar-item:hover{background:var(--border-soft);color:var(--text)}.sidebar-item.active{background:#fef2f2;color:var(--danger);font-weight:600}.sidebar-item .icon{font-size:16px;width:20px;text-align:center}.sidebar-user{padding:16px 20px;border-top:1px solid var(--border);display:flex;align-items:center;gap:10px}.sidebar-user .avatar{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#fff;flex-shrink:0}.sidebar-user .info{flex:1}.sidebar-user .info .name{font-size:13px;font-weight:600}.sidebar-user .info .role{font-size:11px;color:var(--text-muted)}.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;background:var(--bg-card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.topbar-title{font-size:16px;font-weight:600}.topbar-actions{display:flex;align-items:center;gap:12px}.content{flex:1;padding:32px;overflow-y:auto}.content-narrow{max-width:100%;margin:0;padding:32px 40px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:8px;font-size:13px;font-weight:500;transition:var(--transition);border:1px solid transparent}.btn-primary{background:var(--gradient-blue);color:#fff}.btn-primary:hover{opacity:.9;transform:translateY(-1px)}.btn-secondary{background:var(--bg);color:var(--text-secondary);border-color:var(--border)}.btn-secondary:hover{background:var(--border)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--border-soft)}.btn-sm{padding:6px 14px;font-size:12px}.btn-danger{background:var(--danger);color:#fff}.card{background:var(--bg-card);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}.card-header{padding:18px 20px;border-bottom:1px solid var(--border-soft);font-size:14px;font-weight:600}.card-body{padding:20px}.form-group{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:500;margin-bottom:6px}.form-input,.form-textarea,.form-select{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:13px;transition:var(--transition);background:var(--bg)}.form-input:focus,.form-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}.form-textarea{resize:vertical;min-height:80px}.badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:12px;font-size:11px;font-weight:500}.badge-primary{background:#eef2ff;color:var(--primary)}.badge-success{background:#ecfdf5;color:var(--success)}.badge-warning{background:#fffbeb;color:var(--warning)}.badge-danger{background:#fef2f2;color:var(--danger)}.badge-info{background:#eff6ff;color:var(--info)}.badge-gray{background:var(--border-soft);color:var(--text-muted)}.toast{position:fixed;top:24px;left:50%;transform:translate(-50%);background:#1e293b;color:#fff;padding:12px 24px;border-radius:10px;font-size:13px;z-index:9999;box-shadow:0 8px 24px #0003;animation:toastIn .3s ease}@keyframes toastIn{0%{opacity:0;transform:translate(-50%) translateY(-10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--bg-card);border-radius:16px;width:540px;max-width:90vw;max-height:85vh;overflow-y:auto;box-shadow:0 24px 48px #0003}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 16px;border-bottom:1px solid var(--border-soft)}.modal-title{font-size:16px;font-weight:700}.modal-close{cursor:pointer;font-size:20px;color:var(--text-muted);line-height:1}.modal-body{padding:20px 24px}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:16px 24px 20px;border-top:1px solid var(--border-soft)}