:root{--bg:#f4f6f9;--card:#fff;--sidebar:#1e293b;--primary:#2563eb;--green:#16a34a;--red:#dc2626;--orange:#d97706;--text:#1f2937;--muted:#6b7280}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Segoe UI","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:14px}
a{color:var(--primary);text-decoration:none}
.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:var(--sidebar);color:#cbd5e1;flex-shrink:0;display:flex;flex-direction:column}
.sidebar .brand{padding:20px 16px;font-size:16px;font-weight:600;color:#fff;border-bottom:1px solid #334155}
.sidebar nav{flex:1;padding:12px 0}
.sidebar nav a{display:block;padding:11px 20px;color:#cbd5e1;border-left:3px solid transparent}
.sidebar nav a:hover{background:#334155;color:#fff}
.sidebar nav a.active{background:#334155;color:#fff;border-left-color:var(--primary)}
.sidebar .foot{padding:14px 20px;border-top:1px solid #334155}
.main{flex:1;padding:20px;min-width:0}
h2.page-title{margin-bottom:16px;font-size:18px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:20px}
.card{background:var(--card);border-radius:10px;padding:16px;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.card .label{color:var(--muted);font-size:12px;margin-bottom:6px}
.card .value{font-size:24px;font-weight:600}
.card .value.green{color:var(--green)}
.card .value.red{color:var(--red)}
.card .value.orange{color:var(--orange)}
.panel{background:var(--card);border-radius:10px;padding:16px;box-shadow:0 1px 3px rgba(0,0,0,.06);margin-bottom:20px}
.panel h3{font-size:15px;margin-bottom:12px}
table{width:100%;border-collapse:collapse}
th,td{padding:9px 10px;text-align:left;border-bottom:1px solid #e5e7eb;white-space:nowrap}
th{color:var(--muted);font-weight:600;font-size:12px;background:#f9fafb}
tr:hover td{background:#f8fafc}
.badge{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px}
.badge.ok{background:#dcfce7;color:var(--green)}
.badge.err{background:#fee2e2;color:var(--red)}
.badge.warn{background:#fef3c7;color:var(--orange)}
.badge.info{background:#dbeafe;color:var(--primary)}
.btn{display:inline-block;padding:7px 14px;border:1px solid #d1d5db;border-radius:7px;background:#fff;cursor:pointer;font-size:13px;color:var(--text)}
.btn:hover{background:#f3f4f6}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.danger{background:var(--red);border-color:var(--red);color:#fff}
.btn.small{padding:4px 9px;font-size:12px;margin-right:4px}
.filter{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;margin-bottom:14px}
.filter label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted)}
.filter input,.filter select{padding:7px 10px;border:1px solid #d1d5db;border-radius:7px;min-width:160px}
.pager{display:flex;gap:8px;align-items:center;justify-content:flex-end;margin-top:12px;font-size:13px}
.toast{position:fixed;top:20px;right:20px;padding:12px 18px;border-radius:8px;color:#fff;display:none;z-index:999;box-shadow:0 4px 12px rgba(0,0,0,.2)}
.toast.ok{background:var(--green)}.toast.err{background:var(--red)}
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;z-index:900;align-items:center;justify-content:center}
.modal{background:#fff;border-radius:10px;padding:20px;width:640px;max-width:92vw;max-height:80vh;overflow:auto}
.modal h3{margin-bottom:12px}
.modal pre{background:#0f172a;color:#e2e8f0;padding:12px;border-radius:7px;white-space:pre-wrap;word-break:break-all;font-size:12px}
.muted{color:var(--muted);font-size:12px}

/* ===== 对齐 Go 版：仓位卡片网格 / 电池条 / 指令按钮 / 信息栅格 ===== */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}
.info-grid .info-item{padding:11px 14px;background:#f9fafb;border-radius:8px;border:1px solid #e5e7eb}
.info-grid .info-item .label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
.info-grid .info-item .val{font-size:13px;font-weight:550;margin-top:3px;font-variant-numeric:tabular-nums}
@media (max-width:768px){.info-grid{grid-template-columns:repeat(2,1fr)}}
.slot-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:10px}
@media (max-width:768px){.slot-grid{grid-template-columns:1fr}}
.slot-card{background:var(--card);border:1px solid #e5e7eb;border-radius:8px;padding:10px 12px;transition:border-color .15s,box-shadow .15s;box-shadow:0 1px 2px rgba(23,33,47,.03)}
.slot-card:hover{border-color:#9ca3af;box-shadow:0 2px 6px rgba(0,0,0,.08)}
.slot-card.has-pb{border-left:3px solid #0891b2}
.slot-card.empty-slot{border-left:3px solid #e5e7eb;opacity:.85}
.slot-card.pb-reverse-standby{border-left:3px solid var(--orange)}
.slot-card.pb-supplying{border-left:3px solid var(--green)}
.slot-row1{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.slot-card-num{font-size:14px;font-weight:600;flex-shrink:0;font-variant-numeric:tabular-nums}
.slot-card-num .hash{color:var(--muted);font-weight:400}
.slot-card .pb-status{font-size:10px;padding:1px 7px;border-radius:999px;font-weight:550;flex-shrink:0}
.pb-present{background:#cffafe;color:#0891b2}
.pb-absent{background:#f3f4f6;color:var(--muted)}
.pb-reverse-standby-badge{background:#fef3c7;color:var(--orange)}
.pb-supplying-badge{background:#dcfce7;color:var(--green)}
.slot-card .pb-no{font-size:11px;color:#4b5563;font-family:ui-monospace,monospace;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.slot-row2{display:flex;align-items:center;gap:8px}
.slot-metrics{display:flex;gap:10px;flex:1;font-size:11px;flex-wrap:wrap}
.slot-metrics .m{display:flex;align-items:center;gap:3px}
.slot-metrics .m .lbl{color:var(--muted);font-size:10px}
.slot-metrics .m .val{font-weight:600;font-variant-numeric:tabular-nums}
.slot-card-actions{display:flex;gap:3px;flex-shrink:0}
.slot-card-actions .btn.small{padding:3px 6px;font-size:11px;line-height:1.2}
.slot-legend{display:flex;gap:14px;margin-bottom:8px;font-size:11px;color:var(--muted);flex-wrap:wrap}
.slot-legend span{display:inline-flex;align-items:center;gap:4px}
.battery-bar{display:inline-flex;align-items:center;gap:5px}
.battery-bar .bar{width:38px;height:6px;border-radius:3px;background:#f3f4f6;overflow:hidden}
.battery-bar .fill{height:100%;border-radius:3px;transition:width .3s ease}
.battery-bar .pct{font-size:11px;font-weight:600;font-variant-numeric:tabular-nums}
.state-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:12px}
.state-item{background:#f9fafb;border-radius:8px;padding:10px 12px;border:1px solid #e5e7eb}
.state-item .label{font-size:11px;color:var(--muted)}
.state-item .val{font-size:13px;font-weight:600;margin-top:3px;font-variant-numeric:tabular-nums}
@media (max-width:768px){.state-grid{grid-template-columns:repeat(2,1fr)}}

/* SVG 图标（对齐 Go 版 .ic 类：stroke 风格线性图标） */
.ic{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle}
.ic-sm{width:12px;height:12px}
.slot-legend .ic{width:12px;height:12px}
.slot-card-actions .ic{width:13px;height:13px}

/* ===== 对齐 Go 版：设备指令网格按钮 ===== */
.cmd-grid{display:flex;gap:8px;margin-top:14px}
.cmd-btn{flex:1;min-width:0;padding:12px 8px;border:1px solid #9ca3af;border-radius:8px;background:var(--card);color:var(--text);cursor:pointer;font-size:12px;font-weight:500;transition:border-color .15s,background .15s,transform .15s,box-shadow .15s;display:flex;flex-direction:column;align-items:center;gap:6px;white-space:nowrap;box-shadow:0 1px 2px rgba(23,33,47,.04)}
@media (max-width:768px){.cmd-grid{overflow-x:auto;padding-bottom:4px}.cmd-btn{flex:0 0 auto;min-width:76px}}
.cmd-btn:hover{border-color:var(--primary);background:#eff6ff;transform:translateY(-1px);box-shadow:0 4px 10px rgba(2,132,199,.12)}
.cmd-btn .cmd-icon{display:flex;align-items:center;justify-content:center;color:var(--primary)}
.cmd-btn .cmd-icon .ic{width:17px;height:17px}
.cmd-btn.danger{color:var(--red);border-color:#fca5a5}
.cmd-btn.danger:hover{border-color:var(--red);background:#fef2f2}
.cmd-btn.danger .cmd-icon{color:var(--red)}