:root{--c-primary: #0ea5e9;--c-primary-dark: #0284c7;--c-success: #10b981;--c-warning: #f59e0b;--c-danger: #ef4444;--c-info: #6366f1;--c-bg: #f5f7fa;--c-card: #ffffff;--c-text: #1f2937;--c-muted: #6b7280;--c-border: #e5e7eb;--radius: 10px;--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-lg:0 4px 16px rgba(0,0,0,.08);--space: 16px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--c-bg);color:var(--c-text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--c-primary);text-decoration:none}a:hover{color:var(--c-primary-dark)}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));color:#fff;padding:0 20px;height:56px;display:flex;align-items:center;box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.app-header .logo{font-size:17px;font-weight:600;white-space:nowrap}.app-nav{display:flex;gap:4px;margin-left:28px;flex:1}.app-nav a{color:#ffffffd9;padding:8px 14px;border-radius:6px;font-size:14px;transition:all .15s}.app-nav a.router-link-active,.app-nav a:hover{background:#ffffff2e;color:#fff}.app-menu-btn{display:none;background:transparent;border:0;color:#fff;font-size:22px;cursor:pointer;padding:4px 8px}.app-main{flex:1;padding:20px;max-width:1400px;width:100%;margin:0 auto}.card{background:var(--c-card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}.card-title{margin:0 0 14px;font-size:15px;font-weight:600;display:flex;align-items:center;justify-content:space-between}.grid{display:grid;gap:14px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.form-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}.form-row label{width:90px;color:var(--c-muted);font-size:13px}.form-row .ctrl{flex:1;min-width:160px}.form-hint{margin:-4px 0 12px 100px;color:var(--c-muted);font-size:12px;line-height:1.6}@media (max-width: 640px){.form-hint{margin-left:0}}input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--c-border);border-radius:6px;font-size:14px;font-family:inherit;background:#fff;color:var(--c-text);outline:none;transition:border-color .15s}input:focus,select:focus,textarea:focus{border-color:var(--c-primary)}select{cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:7px 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td{background:#f9fafb}.tag{display:inline-flex;align-items:center;padding:2px 8px;border-radius:12px;font-size:12px;background:#eef2ff;color:var(--c-info)}.tag.on{background:#dcfce7;color:var(--c-success)}.tag.off{background:#f3f4f6;color:var(--c-muted)}.tag.warning{background:#fef3c7;color:var(--c-warning)}.tag.danger{background:#fee2e2;color:var(--c-danger)}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:4px}.dot.on{background:var(--c-success);box-shadow:0 0 0 3px #10b9812e}.dot.off{background:#cbd5e1}.flex{display:flex}.between{justify-content:space-between}.center{align-items:center}.gap{gap:8px}.gap-sm{gap:4px}.muted{color:var(--c-muted)}.text-sm{font-size:12px}.text-lg{font-size:16px}.bold{font-weight:600}.mt{margin-top:12px}.mb{margin-bottom:12px}.empty{text-align:center;color:var(--c-muted);padding:30px 0}.toast{position:fixed;top:70px;left:50%;transform:translate(-50%);background:#1f2937f2;color:#fff;padding:10px 18px;border-radius:8px;font-size:13px;z-index:9999;box-shadow:var(--shadow-lg);animation:toast-in .2s ease}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,-10px)}to{opacity:1;transform:translate(-50%)}}@media (max-width: 768px){.app-header{padding:0 12px}.app-nav{display:none;flex-direction:column;position:absolute;top:56px;left:0;right:0;background:var(--c-primary-dark);padding:8px;gap:2px}.app-nav.open{display:flex}.app-nav a{padding:12px 14px;border-radius:6px}.app-menu-btn{display:inline-block}.app-main{padding:12px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.form-row label{width:80px}.table{font-size:12px}.table th,.table td{padding:7px 6px}}@media (min-width: 769px) and (max-width: 1100px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}