:root{--primary: #0066FF;--primary-dark: #0052CC;--danger: #E60012;--bg: #F8F9FA;--card-bg: #FFFFFF;--text: #1A1A2E;--text-secondary: #6B7280;--border: #E5E7EB;--radius: 12px;--shadow: 0 2px 8px rgba(0,0,0,.08)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Noto Sans SC,sans-serif;background:var(--bg);color:var(--text)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border:none;border-radius:8px;font-size:15px;font-weight:500;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{background:var(--danger);color:#fff}.btn-outline{background:transparent;color:var(--primary);border:1px solid var(--primary)}.btn-sm{padding:6px 14px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:15px;outline:none;transition:border-color .2s}.input:focus{border-color:var(--primary)}.card{background:var(--card-bg);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.page-container{max-width:480px;margin:0 auto;padding:40px 20px}.page-title{font-size:24px;font-weight:700;margin-bottom:8px}.page-subtitle{font-size:14px;color:var(--text-secondary);margin-bottom:28px}.form-group{margin-bottom:18px}.form-label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:var(--text)}.form-error{font-size:13px;color:var(--danger);margin-top:4px}.form-hint{font-size:12px;color:var(--text-secondary);margin-top:4px}.divider{text-align:center;margin:24px 0;color:var(--text-secondary);font-size:13px}.navbar{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.navbar-brand{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:var(--primary)}.navbar-actions{display:flex;align-items:center;gap:12px}.navbar-user{display:flex;align-items:center;gap:8px;cursor:pointer}.navbar-avatar{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600}.app-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;padding:24px;max-width:1200px;margin:0 auto}.app-card{background:var(--card-bg);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);cursor:pointer;transition:transform .2s,box-shadow .2s;text-align:center}.app-card:hover{transform:translateY(-2px);box-shadow:0 4px 16px #0000001f}.app-icon{width:48px;height:48px;border-radius:12px;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;font-size:24px}.app-name{font-size:15px;font-weight:600;margin-bottom:4px}.app-desc{font-size:12px;color:var(--text-secondary)}.app-locked{font-size:12px;color:var(--danger);margin-top:8px}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table th{text-align:left;padding:12px 16px;background:var(--bg);font-weight:600;border-bottom:2px solid var(--border)}.admin-table td{padding:10px 16px;border-bottom:1px solid var(--border)}.tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:20px}.tab{padding:10px 20px;font-size:14px;font-weight:500;border-bottom:2px solid transparent;cursor:pointer;color:var(--text-secondary);transition:all .2s;margin-bottom:-2px}.tab.active{color:var(--primary);border-bottom-color:var(--primary)}.toast{position:fixed;top:20px;right:20px;padding:14px 20px;border-radius:8px;font-size:14px;z-index:9999;animation:toast-in .3s ease}.toast-success{background:#10b981;color:#fff}.toast-error{background:var(--danger);color:#fff}@keyframes toast-in{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.app-grid{grid-template-columns:repeat(2,1fr);padding:16px}.page-container{padding:24px 16px}}