:root{color-scheme:light;--bg: #f3f6fa;--panel: #ffffff;--text: #172033;--muted: #66758a;--line: #d9e2ee;--soft: #f7f9fc;--primary: #1f6feb;--primary-dark: #1557ba;--green: #16834a;--amber: #a15c00;--shadow: 0 16px 42px rgba(25, 39, 62, .08);--radius: 8px}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--text);background:var(--bg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}button,select{font:inherit}.app-shell{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:20px 0 36px}.app-header,.workspace,.device-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);box-shadow:var(--shadow)}.app-header{display:flex;justify-content:space-between;gap:24px;align-items:center;min-height:128px;padding:24px 28px}.eyebrow{margin:0 0 8px;color:var(--primary);font-size:12px;font-weight:850;letter-spacing:0;text-transform:uppercase}h1,h2,h3{margin:0;letter-spacing:0;line-height:1.15}h1{font-size:34px}h2{font-size:24px}h3{font-size:17px}.subtitle,.section-title p{margin:8px 0 0;color:var(--muted);line-height:1.6}.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}.primary-button{min-height:42px;border:0;border-radius:var(--radius);padding:0 18px;color:#fff;background:var(--primary);font-weight:800;cursor:pointer;box-shadow:0 10px 18px #1f6feb33}.primary-button:hover{background:var(--primary-dark)}.support-note{color:var(--muted);font-size:13px;white-space:nowrap}.workspace{margin-top:14px;padding:22px}.section-title{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:16px}.device-count{min-height:30px;margin:0;border-radius:999px;padding:5px 11px;color:var(--primary);background:#edf4ff;font-size:13px;font-weight:800;white-space:nowrap}.device-list{display:grid;gap:14px}.device-list.has-devices .empty-state{display:none}.empty-state{display:grid;place-items:center;min-height:260px;border:1px dashed #c8d4e4;border-radius:var(--radius);padding:28px;text-align:center;background:var(--soft)}.empty-state p{margin:8px 0 0;color:var(--muted)}.empty-icon{width:44px;height:44px;margin-bottom:14px;border-radius:14px;background:linear-gradient(90deg,transparent 47%,rgba(255,255,255,.76) 47% 53%,transparent 53%),linear-gradient(135deg,#1f6feb,#2fb3c8)}.device-card{padding:20px;box-shadow:none}.device-header{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;padding-bottom:16px;border-bottom:1px solid var(--line)}.device-title{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.device-name{font-size:24px;font-weight:850}.device-index,.badge{display:inline-flex;align-items:center;min-height:26px;border-radius:999px;padding:0 10px;font-size:12px;font-weight:800}.device-index{color:#3c5068;background:#eef2f6}.badge.success{color:var(--green);background:#eaf7ef}.summary-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:16px}.summary-card{min-height:86px;border:1px solid var(--line);border-radius:var(--radius);padding:12px;background:var(--soft)}.summary-label{color:var(--muted);font-size:13px;font-weight:700}.summary-value{margin-top:8px;font-size:20px;font-weight:850;overflow-wrap:anywhere}.device-sections{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;margin-top:14px}.panel-section{border:1px solid var(--line);border-radius:var(--radius);background:#fff}.panel-section.full{grid-column:1 / -1}.panel-heading{padding:13px 14px;border-bottom:1px solid var(--line);font-weight:850}.panel-body{display:grid;gap:10px;padding:14px}.info-row,.control-row{min-height:42px;border:1px solid #e3eaf2;border-radius:var(--radius);padding:10px 12px;background:var(--soft)}.info-row{display:flex;justify-content:space-between;gap:12px}.info-label{color:var(--muted)}.info-value{text-align:right;font-weight:750;overflow-wrap:anywhere}.control-row{display:flex;justify-content:space-between;gap:12px;align-items:center}select{min-width:132px;height:36px;border:1px solid #c7d3e2;border-radius:7px;padding:0 10px;color:var(--text);background:#fff}details{border:1px solid var(--line);border-radius:var(--radius);background:#fff}summary{cursor:pointer;padding:12px 14px;font-weight:850}.details-content{display:grid;gap:8px;max-height:340px;overflow:auto;padding:0 14px 14px}.details-content .info-row{min-height:36px;padding:8px 10px}@media (max-width: 900px){.summary-grid,.device-sections{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 640px){.app-shell{width:min(100% - 20px,1180px);padding-top:10px}.app-header,.section-title,.device-header,.header-actions,.info-row,.control-row{flex-direction:column;align-items:stretch}.app-header,.workspace,.device-card{padding:16px}h1{font-size:30px}.summary-grid,.device-sections{grid-template-columns:1fr}.panel-section.full{grid-column:auto}.primary-button,select{width:100%}.info-value{text-align:left}}