:root {
  --primary: #165dff;
  --primary-light: #e8f3ff;
  --bg: #f7f8fa;
  --line: #e5e6eb;
  --text: #1d2129;
  --subtle: #4e5969;
  --muted: #86909c;
  --success: #00b42a;
  --warning: #ff7d00;
  --danger: #f53f3f;
  font-family: "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  min-width: 1280px;
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
}

button, input, select { font: inherit; }
button { cursor: pointer; }

.platformShell {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  min-height: 100vh;
}

.platformShell.isCollapsed { grid-template-columns: 64px minmax(0, 1fr); }

.sideNav {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: visible;
  border-right: 1px solid var(--line);
  background: #fff;
}

.brandBlock {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 56px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.brandMark {
  display: inline-grid;
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  place-items: center;
  border-radius: 2px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.brandTitle { font-size: 15px; font-weight: 700; }
.brandDesc { color: var(--muted); font-size: 12px; }

.navGroup {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 12px 8px;
}

.navSection + .navSection {
  margin-top: 8px;
}

.navGroupToggle {
  display: flex;
  width: 100%;
  height: 32px;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  border: 0;
  border-radius: 2px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  text-align: left;
}
.navGroupToggle:hover { background: #f2f3f5; color: var(--subtle); }
.navGroupArrow { color: var(--muted); font-size: 12px; transition: transform 160ms ease; }
.navSection.isClosed .navGroupArrow { transform: rotate(-90deg); }
.navSectionBody[hidden] { display: none; }

.navLink {
  position: relative;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  min-height: 36px;
  margin: 2px 0;
  padding: 0 12px;
  border-radius: 2px;
  color: var(--subtle);
  text-decoration: none;
}

.navLink:hover { background: #f2f3f5; color: var(--text); }
.navLink::before {
  position: absolute;
  top: 7px;
  bottom: 7px;
  left: 0;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--primary);
  content: "";
  transform: scaleY(0);
}
.navLink.isActive {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}
.navLink.isActive::before { transform: scaleY(1); }

.navIcon {
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  text-align: center;
}

.navLink:hover .navIcon, .navLink.isActive .navIcon { color: var(--primary); }
.navText { min-width: 0; }
.navTitle { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.sideFooter {
  margin-top: auto;
  padding: 8px;
  border-top: 1px solid var(--line);
}

.collapseButton {
  width: 100%;
  height: 32px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fff;
  color: var(--subtle);
}
.collapseButton:hover { border-color: var(--primary); color: var(--primary); }

.isCollapsed .brandText, .isCollapsed .navText, .isCollapsed .navGroupToggle, .isCollapsed .collapseLabel { display: none; }
.isCollapsed .brandBlock { justify-content: center; padding: 0; }
.isCollapsed .navGroup { padding: 12px 8px; }
.isCollapsed .navSection + .navSection { margin-top: 6px; }
.isCollapsed .navLink { grid-template-columns: 1fr; min-height: 40px; justify-items: center; padding: 0; }
.isCollapsed .navLink:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  z-index: 50;
  padding: 5px 8px;
  transform: translateY(-50%);
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fff;
  box-shadow: 0 4px 12px rgb(29 33 41 / 12%);
  color: var(--text);
  font-size: 12px;
  font-weight: 400;
  line-height: 18px;
  pointer-events: none;
  white-space: nowrap;
}

.pageArea { min-width: 0; }

.topBar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 56px;
  padding: 0 24px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.breadcrumbs, .topActions, .headerMeta, .actionRow, .tabs, .pagination { display: flex; align-items: center; gap: 8px; }
.breadcrumbs { color: var(--subtle); font-size: 12px; }
.breadcrumbs span:last-child { color: var(--muted); }

.globalSearch {
  width: 320px;
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  outline: none;
  background: var(--bg);
}
.globalSearch:focus, .fieldControl:focus { border-color: var(--primary); background: #fff; }

.iconButton, .textButton, .secondaryButton, .primaryButton {
  height: 32px;
  border-radius: 2px;
}
.iconButton {
  width: 32px;
  border: 0;
  background: #fff;
  color: var(--subtle);
  font-size: 16px;
}
.iconButton:hover, .textButton:hover { color: var(--primary); background: var(--primary-light); }
.userAvatar { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 50%; background: #d6e8ff; color: var(--primary); font-weight: 700; }

.pageContent { display: grid; gap: 16px; padding: 24px; }
.titleRow, .cardHeader { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.titleRow h1 { margin: 0; font-size: 18px; line-height: 1.4; }
.titleRow p { margin: 6px 0 0; color: var(--muted); font-size: 12px; }
.updatedAt { color: var(--muted); font-size: 12px; }

.statusTag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fff;
  color: var(--subtle);
  font-size: 12px;
  white-space: nowrap;
}
.statusTag.blue { border-color: #bedaff; background: var(--primary-light); color: var(--primary); }
.statusTag.green { border-color: #aff0b5; background: #e8ffea; color: var(--success); }
.statusTag.orange { border-color: #ffcf8b; background: #fff7e8; color: var(--warning); }
.statusTag.red { border-color: #ffb7b7; background: #fff2f0; color: var(--danger); }

.grid24 { display: grid; grid-template-columns: repeat(24, minmax(0, 1fr)); gap: 16px; }
.span6 { grid-column: span 6; }.span8 { grid-column: span 8; }.span12 { grid-column: span 12; }.span16 { grid-column: span 16; }.span24 { grid-column: span 24; }

.card { border: 1px solid var(--line); border-radius: 2px; background: #fff; }
.cardHeader { min-height: 48px; padding: 0 16px; border-bottom: 1px solid var(--line); }
.cardHeader h2 { margin: 0; font-size: 15px; }
.cardSubTitle { color: var(--muted); font-size: 12px; }
.cardBody { padding: 16px; }

.metricCard { display: grid; gap: 10px; min-height: 126px; }
.metricLabel { color: var(--muted); font-size: 12px; }
.metricValue { font-size: 26px; line-height: 1.1; font-weight: 700; }
.metricMeta { color: var(--subtle); font-size: 12px; }
.metricLine { height: 4px; overflow: hidden; border-radius: 2px; background: #f2f3f5; }
.metricLine i { display: block; height: 100%; background: var(--primary); }

.filterPanel { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)) auto auto; align-items: end; gap: 12px; }
.field { display: grid; gap: 7px; }
.field label { color: var(--subtle); font-size: 12px; }
.fieldControl { width: 100%; height: 32px; padding: 0 10px; border: 1px solid var(--line); border-radius: 2px; outline: none; background: #fff; color: var(--text); }

.primaryButton, .secondaryButton, .textButton { padding: 0 12px; }
.primaryButton { border: 1px solid var(--primary); background: var(--primary); color: #fff; }
.primaryButton:hover { border-color: #4080ff; background: #4080ff; }
.secondaryButton { border: 1px solid var(--line); background: #fff; color: var(--text); }
.secondaryButton:hover { border-color: var(--primary); color: var(--primary); }
.textButton { border: 0; background: transparent; color: var(--primary); }

.tabs { min-height: 40px; border-bottom: 1px solid var(--line); }
.tabButton { height: 40px; padding: 0 14px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--subtle); }
.tabButton:hover { color: var(--primary); }
.tabButton.isActive { border-bottom-color: var(--primary); color: var(--primary); font-weight: 600; }

.tableWrap { overflow: auto; }
table { width: 100%; min-width: 960px; border-collapse: collapse; table-layout: fixed; }
th, td { height: 44px; padding: 0 12px; border-bottom: 1px solid var(--line); overflow: hidden; text-align: left; text-overflow: ellipsis; white-space: nowrap; }
th { background: var(--bg); color: var(--subtle); font-size: 12px; font-weight: 600; }
tbody tr:hover td { background: #f2f7ff; }
td .textButton { height: 28px; padding: 0; }

.pagination { justify-content: flex-end; padding-top: 16px; color: var(--subtle); font-size: 12px; }
.pageSize { width: 92px; height: 28px; border: 1px solid var(--line); border-radius: 2px; background: #fff; }

.sideList { display: grid; gap: 10px; }
.sideListItem { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 12px; border: 1px solid var(--line); border-radius: 2px; background: var(--bg); }
.sideListItem strong { display: block; margin-bottom: 4px; font-size: 14px; }
.sideListItem p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }

.empty { padding: 32px; color: var(--muted); text-align: center; }
.toast { position: fixed; right: 24px; bottom: 24px; z-index: 5; display: none; padding: 10px 14px; border: 1px solid #aff0b5; border-radius: 2px; background: #f0fff2; color: var(--success); }
.toast.isVisible { display: block; }

@media (max-width: 1366px) { .filterPanel { grid-template-columns: repeat(3, minmax(0, 1fr)) auto auto; } }