:root {
  --primary: #1890ff;
  --primary-dark: #096dd9;
  --sidebar: #001529;
  --bg: #f5f5f5;
  --surface: #ffffff;
  --border: #e8e8e8;
  --text: #1f1f1f;
  --muted: #666666;
  --subtle: #8c8c8c;
  --success: #52c41a;
  --warning: #faad14;
  --danger: #ff4d4f;
  --teal: #13c2c2;
  --radius: 2px;
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  --font: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 224px minmax(0, 1fr);
}

.sidebar {
  background: var(--sidebar);
  color: #ffffff;
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 8px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--primary);
  border-radius: var(--radius);
  font-weight: 700;
}

.brand-title {
  font-weight: 700;
  white-space: nowrap;
}

.brand-subtitle {
  color: rgba(255, 255, 255, 0.54);
  font-size: 12px;
  margin-top: 2px;
}

.side-nav {
  display: grid;
  gap: 4px;
}

.side-nav-item {
  width: 100%;
  height: 40px;
  border: 0;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  background: transparent;
  color: rgba(255, 255, 255, 0.76);
  text-align: left;
}

.side-nav-item:hover,
.side-nav-item.active {
  color: #ffffff;
  background: var(--primary);
}

.side-nav-item svg,
.button svg,
.icon-button svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

.main-area {
  min-width: 0;
  padding: 20px 24px 28px;
}

.topbar {
  min-height: 56px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.breadcrumb {
  color: var(--subtle);
  font-size: 12px;
  margin-bottom: 4px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 22px;
  font-weight: 650;
  letter-spacing: 0;
}

h2 {
  font-size: 16px;
  font-weight: 650;
  letter-spacing: 0;
}

h3 {
  font-size: 14px;
  font-weight: 650;
}

.topbar-actions,
.action-row-buttons,
.pagination-buttons,
.form-actions,
.modal-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.version-pill,
.tag {
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #91d5ff;
  background: #e6f7ff;
  color: #0050b3;
  border-radius: var(--radius);
  padding: 0 8px;
  font-size: 12px;
  white-space: nowrap;
}

.tag.success {
  border-color: #b7eb8f;
  background: #f6ffed;
  color: #237804;
}

.tag.warning {
  border-color: #ffe58f;
  background: #fffbe6;
  color: #ad6800;
}

.tag.danger {
  border-color: #ffccc7;
  background: #fff2f0;
  color: #a8071a;
}

.tag.neutral {
  border-color: var(--border);
  background: #fafafa;
  color: var(--muted);
}

.button,
.icon-button {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: var(--radius);
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.button {
  gap: 6px;
  padding: 0 12px;
}

.icon-button {
  width: 32px;
  padding: 0;
}

.button:hover,
.icon-button:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.button.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

.button.primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #ffffff;
}

.button.ghost {
  background: #ffffff;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.metric {
  min-height: 72px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: grid;
  gap: 4px;
}

.metric-label {
  color: var(--muted);
  font-size: 12px;
}

.metric strong {
  font-size: 24px;
  line-height: 1.1;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.workspace-grid,
.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 16px;
  align-items: start;
}

.release-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: 16px;
}

.content-panel,
.detail-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.content-panel {
  min-width: 0;
}

.detail-panel {
  position: sticky;
  top: 16px;
  padding: 16px;
}

.panel-heading {
  min-height: 54px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.subtle {
  color: var(--subtle);
  font-size: 12px;
}

.filter-panel {
  display: grid;
  grid-template-columns: 140px 132px 118px 150px minmax(180px, 1fr) 32px;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  align-items: end;
}

label {
  display: grid;
  gap: 6px;
  min-width: 0;
}

label span {
  color: var(--muted);
  font-size: 12px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 32px;
  border: 1px solid #d9d9d9;
  border-radius: var(--radius);
  padding: 4px 10px;
  color: var(--text);
  background: #ffffff;
  outline: none;
}

textarea {
  min-height: 72px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.12);
}

.action-row,
.pagination-bar {
  min-height: 48px;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}

.segmented {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fafafa;
}

.segment {
  min-width: 62px;
  height: 30px;
  border: 0;
  border-right: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
}

.segment:last-child {
  border-right: 0;
}

.segment.active {
  background: #e6f7ff;
  color: var(--primary-dark);
  font-weight: 650;
}

.table-shell {
  width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 1040px;
  border-collapse: collapse;
}

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  text-align: left;
}

th {
  background: #fafafa;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

td {
  color: #262626;
}

tbody tr {
  transition: background 0.15s ease;
}

tbody tr:hover,
tbody tr.selected {
  background: #e6f7ff;
}

.rule-id {
  display: inline-flex;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  color: #0050b3;
  background: #e6f7ff;
  border: 1px solid #91d5ff;
  border-radius: var(--radius);
  padding: 1px 6px;
  margin-bottom: 4px;
}

.cell-main {
  display: grid;
  gap: 3px;
}

.cell-title {
  font-weight: 650;
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-meta {
  color: var(--subtle);
  font-size: 12px;
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.priority-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  max-width: 220px;
}

.size-chip {
  min-height: 22px;
  padding: 1px 6px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #fafafa;
  color: #262626;
  font-size: 12px;
  white-space: nowrap;
}

.size-chip.more {
  color: var(--subtle);
}

.pagination-bar {
  border-bottom: 0;
  color: var(--muted);
  font-size: 12px;
}

.detail-empty {
  min-height: 280px;
  display: grid;
  place-items: center;
  color: var(--subtle);
  text-align: center;
}

.detail-stack {
  display: grid;
  gap: 16px;
}

.detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

.detail-title {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.detail-title h2 {
  word-break: break-word;
}

.detail-actions {
  display: flex;
  gap: 6px;
}

.detail-section {
  display: grid;
  gap: 8px;
}

.kv-grid {
  display: grid;
  gap: 8px;
}

.kv {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 8px;
}

.kv span:first-child {
  color: var(--muted);
}

.kv span:last-child {
  min-width: 0;
  word-break: break-word;
}

.raw-rule {
  max-height: 180px;
  overflow: auto;
  padding: 10px;
  background: #fafafa;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  white-space: pre-wrap;
  word-break: break-word;
  color: #262626;
  font-size: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 16px;
}

.form-grid .wide {
  grid-column: 1 / -1;
}

.simulator-form {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-actions {
  padding: 0 16px 16px;
  justify-content: flex-end;
}

.result-panel {
  min-height: 340px;
}

.result-block {
  display: grid;
  gap: 12px;
}

.allocation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.allocation {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  display: grid;
  gap: 8px;
}

.allocation strong {
  font-size: 18px;
}

.check-list,
.diff-list,
.timeline {
  padding: 14px 16px 16px;
  display: grid;
  gap: 10px;
}

.check-item,
.diff-item,
.log-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  display: grid;
  gap: 4px;
}

.check-item {
  grid-template-columns: 20px minmax(0, 1fr);
  align-items: start;
}

.check-item svg {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  color: var(--success);
}

.diff-value {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.log-item {
  position: relative;
  padding-left: 18px;
}

.log-item::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 16px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.modal {
  width: min(880px, calc(100vw - 32px));
  border: 0;
  padding: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.modal::backdrop {
  background: rgba(0, 0, 0, 0.36);
}

.modal-body {
  background: var(--surface);
}

.modal-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.modal-actions {
  padding: 12px 16px 16px;
  justify-content: flex-end;
  border-top: 1px solid var(--border);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(16px);
  min-width: 220px;
  max-width: calc(100vw - 32px);
  padding: 10px 14px;
  border-radius: var(--radius);
  background: #262626;
  color: #ffffff;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  text-align: center;
  z-index: 20;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 1180px) {
  .workspace-grid,
  .split-layout,
  .release-grid {
    grid-template-columns: 1fr;
  }

  .detail-panel {
    position: static;
  }

  .filter-panel {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 10px 12px;
    gap: 10px;
  }

  .brand-block {
    padding-bottom: 0;
  }

  .side-nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .side-nav-item {
    justify-content: center;
    padding: 0 6px;
  }

  .side-nav-item span {
    display: none;
  }

  .main-area {
    padding: 14px 12px 22px;
  }

  .topbar {
    display: grid;
  }

  .topbar-actions {
    flex-wrap: wrap;
  }

  .metric-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filter-panel,
  .form-grid,
  .simulator-form {
    grid-template-columns: 1fr;
  }

  .action-row,
  .pagination-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .segmented {
    width: 100%;
  }

  .segment {
    flex: 1;
    min-width: 0;
  }

  .action-row-buttons,
  .pagination-buttons {
    justify-content: flex-end;
  }

  .allocation-grid {
    grid-template-columns: 1fr;
  }
}