:root {
  --bg: #f5f7f8;
  --panel: #ffffff;
  --panel-2: #f1f5f5;
  --text: #20292d;
  --muted: #65747a;
  --line: #d8e0e3;
  --primary: #0f766e;
  --primary-2: #115e59;
  --accent: #2563eb;
  --accent-2: #d97706;
  --danger: #b42318;
  --ok: #15803d;
  --warn: #a16207;
  --shadow: 0 12px 30px rgba(25, 38, 44, 0.08);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
}
button, input, select, textarea { font: inherit; }
button, .link-button {
  min-height: 38px;
  border: 0;
  border-radius: 7px;
  padding: 0 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}
button:disabled { opacity: .55; cursor: not-allowed; }
input, select, textarea {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fbfdfd;
  color: var(--text);
  padding: 0 10px;
}
textarea {
  min-height: 108px;
  padding: 9px 10px;
  resize: vertical;
}
.shell { width: min(1120px, calc(100% - 24px)); margin: 0 auto; padding: 18px 0 28px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.eyebrow { color: var(--primary); font-size: 12px; font-weight: 800; text-transform: uppercase; }
h1, h2 { margin: 0; }
h1 { font-size: 22px; }
h2 { font-size: 16px; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 14px;
}
.panel-title { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; }
.panel-title.aligned { align-items: flex-start; }
.hint { color: var(--muted); font-size: 13px; }
.primary { background: var(--primary); color: white; }
.primary:hover { background: var(--primary-2); }
.secondary, .link-button { border: 1px solid var(--line); background: #fff; color: #25363b; }
.secondary:hover, .link-button:hover { border-color: #b7c5ca; }
.danger { color: var(--danger); }
.danger-button { border: 1px solid #efb0aa; background: #fff7f6; color: var(--danger); }
.danger-button:hover { border-color: #d67c73; background: #fff0ef; }
.small { min-height: 30px; padding: 0 10px; font-size: 12px; }
.table-actions { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.table-actions button { min-height: 30px; padding: 0 10px; font-size: 12px; }
.server-pill {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  padding: 7px 10px;
  color: var(--muted);
  font-size: 13px;
}
.server-pill.ok {
  border-color: #bbd7c6;
  background: #f3faf5;
  color: var(--ok);
}
.simple-update-shell { max-width: 760px; }
.simple-update-panel { margin-top: 12px; }
.status-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}
.status-strip div {
  min-height: 62px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
  padding: 10px;
  display: grid;
  align-content: center;
  gap: 5px;
}
.status-strip span { color: var(--muted); font-size: 12px; }
.status-strip strong { font-size: 13px; overflow-wrap: anywhere; }
.update-grid { display: grid; grid-template-columns: 310px minmax(0, 1fr); gap: 12px; align-items: start; }
.device-list, .field-stack, .config-grid, .version-list, .endpoint-grid { display: grid; gap: 8px; }
.config-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kv, .config-item {
  display: grid;
  gap: 4px;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel-2);
  padding: 8px 10px;
}
.kv span, .config-item span { color: var(--muted); font-size: 12px; }
.kv strong, .config-item strong { color: var(--text); font-size: 13px; overflow-wrap: anywhere; }
.config-item.ok { border-color: #bbd7c6; background: #f3faf5; }
.config-item.warn { border-color: #efd08a; background: #fff9eb; }
.button-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
.button-row.single { grid-template-columns: 1fr; }
.version-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-height: 68px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
}
.version-card.current { background: #f2f7f6; border-color: #b9d5d0; }
.version-card.selected { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(15, 118, 110, .1); }
.version-title { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; font-weight: 800; }
.version-meta { margin-top: 5px; color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.tag { display: inline-flex; align-items: center; min-height: 22px; border-radius: 999px; padding: 0 8px; background: #e9f2ff; color: var(--accent); font-size: 12px; font-weight: 700; }
.tag.accent { background: #e6f5f2; color: var(--primary); }
.tag.muted { background: #eef2f3; color: #687980; }
.empty-state { border: 1px dashed #b8c8cc; border-radius: 8px; min-height: 90px; display: grid; place-items: center; color: var(--muted); background: #f8fbfb; padding: 10px; text-align: center; }
.empty-state.compact { min-height: 74px; }
.flow-panel { margin-top: 12px; }
.flow-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.flow-step { border: 1px solid var(--line); border-radius: 7px; background: #fff; padding: 10px; color: var(--muted); font-size: 12px; }
.flow-step strong { display: block; color: var(--text); font-size: 13px; margin-bottom: 4px; }
.admin-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 12px; align-items: start; margin-bottom: 12px; }
.admin-grid.wide-left { grid-template-columns: minmax(0, 1.35fr) 330px; }
.admin-strip strong { font-size: 12px; }
.compact-form { align-content: start; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
.compact-table { margin-top: 8px; }
.scan-title { margin: 12px 0 6px; color: var(--muted); font-size: 13px; font-weight: 800; }
.package-diagnostics { margin-top: 8px; }
.upload-zone { border: 1px dashed #9db1b8; border-radius: 8px; background: #f8fbfb; min-height: 86px; display: grid; place-items: center; gap: 4px; padding: 14px; text-align: center; color: var(--muted); cursor: pointer; }
.upload-zone strong { color: var(--text); font-size: 14px; }
.upload-zone.dragover { border-color: var(--primary); background: #eef8f6; color: var(--primary); }
table { width: 100%; min-width: 620px; border-collapse: collapse; background: #fff; }
th, td { border-bottom: 1px solid var(--line); padding: 8px; text-align: left; font-size: 13px; }
th { background: #eef3f4; color: #405056; font-weight: 800; }
.endpoint-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
code { border: 1px solid var(--line); border-radius: 7px; background: #f8fbfb; padding: 9px 10px; color: #334247; overflow-wrap: anywhere; display: grid; gap: 5px; font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace; }
code b { color: var(--accent-2); }
code span { color: var(--muted); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif; font-size: 12px; }
.toast { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%) translateY(16px); opacity: 0; pointer-events: none; min-width: min(420px, calc(100vw - 32px)); border-radius: 8px; padding: 11px 13px; background: #123235; color: white; box-shadow: 0 18px 40px rgba(18, 50, 53, .24); transition: .18s ease; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
@media (max-width: 920px) {
  .status-strip, .update-grid, .admin-grid, .admin-grid.wide-left, .flow-grid, .endpoint-grid, .config-grid { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; }
}
@media (max-width: 520px) {
  .shell { width: min(100% - 16px, 1120px); padding-top: 12px; }
  .topbar { display: grid; }
  .button-row { grid-template-columns: 1fr; }
  .version-card { grid-template-columns: 1fr; }
  h1 { font-size: 20px; }
}