:root {
  --bg: #f0f2f5;
  --surface: #ffffff;
  --line: #e8e8e8;
  --text: rgba(0, 0, 0, 0.85);
  --muted: rgba(0, 0, 0, 0.45);
  --blue: #1890ff;
  --cyan: #b7e7fb;
  --green: #20b318;
  --orange: #faad14;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

body.dark {
  --bg: #111827;
  --surface: #182235;
  --line: #2b3850;
  --text: rgba(255, 255, 255, 0.88);
  --muted: rgba(255, 255, 255, 0.56);
  --cyan: #24455d;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-size: 14px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.brand,
.top-actions,
.search-box,
.resource-card,
.endpoint {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
}

.brand-mark {
  width: 36px;
  height: 26px;
  display: grid;
  place-items: center;
  color: #ff4d4f;
  font-weight: 900;
  border: 2px solid #ffccc7;
}

.brand strong {
  display: block;
  font-size: 19px;
  line-height: 1;
}

.brand span {
  display: none;
  color: var(--muted);
  font-size: 12px;
}

.top-actions {
  gap: 8px;
}

.theme-toggle,
.global-button {
  min-height: 32px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.theme-toggle {
  width: 48px;
  border-radius: 999px;
}

.global-button {
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  text-decoration: none;
}

.shell {
  display: grid;
  grid-template-columns: 350px minmax(0, 1fr);
  min-height: calc(100vh - 42px);
}

.sidebar {
  position: sticky;
  top: 42px;
  height: calc(100vh - 42px);
  overflow: auto;
  background: var(--surface);
  border-right: 1px solid var(--line);
}

.project-select {
  height: 40px;
  margin: 12px 10px 8px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--line);
  color: var(--text);
}

.search-box {
  height: 40px;
  margin: 0 10px;
  border: 1px solid var(--line);
}

.search-box input {
  width: 100%;
  height: 100%;
  border: 0;
  outline: 0;
  padding: 0 10px;
  background: transparent;
  color: var(--text);
}

.search-box img {
  width: 18px;
  height: 18px;
  margin-right: 10px;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--line);
  margin-top: 10px;
}

.tabs button {
  height: 42px;
  border: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tabs button.active {
  color: var(--blue);
  border-color: var(--blue);
}

.menu {
  padding: 12px 0;
}

.menu p {
  margin: 10px 22px;
  color: var(--muted);
}

.menu a {
  display: block;
  min-height: 38px;
  padding: 10px 24px 10px 42px;
  color: var(--text);
  text-decoration: none;
  border-right: 3px solid transparent;
}

.menu a.active,
.menu a:hover {
  color: var(--blue);
  background: rgba(24, 144, 255, 0.08);
  border-color: var(--blue);
}

.content {
  padding: 0 16px 36px;
  overflow: hidden;
}

.crumb {
  height: 40px;
  display: flex;
  align-items: center;
  padding-left: 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  margin: 0 -16px 24px;
}

h1 {
  margin: 0 0 18px;
  font-size: 30px;
}

h2 {
  margin: 0 0 16px;
  font-size: 18px;
}

h3 {
  margin: 0 0 10px;
  font-size: 15px;
}

.doc-section {
  scroll-margin-top: 60px;
  margin-bottom: 16px;
}

.card,
.panel,
.stat-card {
  background: var(--surface);
  border: 1px solid var(--line);
}

.card {
  padding: 24px;
}

.dashboard {
  display: grid;
  grid-template-columns: 290px 1fr 290px;
  gap: 16px;
}

.stats {
  display: grid;
  gap: 12px;
}

.stat-card {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px;
}

.badge {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: white;
  font-size: 18px;
}

.badge.app { background: var(--orange); }
.badge.api { background: var(--green); }
.badge.docs { background: var(--blue); }

.stat-card strong {
  font-size: 20px;
}

.stat-card p,
.resource-card p,
.empty-box span {
  margin: 4px 0 0;
  color: var(--muted);
}

.panel {
  min-height: 216px;
}

.panel h2 {
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.type-row {
  display: flex;
  justify-content: space-between;
  margin: 10px;
  padding: 10px 14px;
  background: var(--cyan);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 18px;
}

.tag-list span {
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: var(--bg);
}

.author {
  grid-column: 1 / 2;
}

.group {
  grid-column: 2 / 4;
}

.empty-box {
  min-height: 130px;
  display: grid;
  place-items: center;
}

.empty-box img {
  width: 38px;
  opacity: 0.35;
}

.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 18px 0;
}

.flow span {
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  text-align: center;
}

.notice {
  padding: 12px 14px;
  border-left: 4px solid var(--blue);
  background: rgba(24, 144, 255, 0.08);
}

.endpoint {
  gap: 10px;
  margin-bottom: 16px;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--line);
}

.method {
  padding: 4px 9px;
  background: #52c41a;
  color: white;
  font-weight: 700;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
}

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

th {
  background: var(--bg);
  font-weight: 700;
}

pre {
  margin: 0;
  overflow: auto;
  padding: 16px;
  background: #1f2937;
  color: #f8fafc;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

p {
  line-height: 1.7;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.resource-card {
  gap: 14px;
  padding: 14px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  background: var(--bg);
}

.resource-card img {
  width: 40px;
  height: 40px;
}

.resource-card div {
  flex: 1;
}

.resource-card a {
  padding: 8px 12px;
  color: white;
  background: var(--blue);
  text-decoration: none;
}

.asset-browser {
  margin-top: 18px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.asset-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.asset-toolbar h3,
.asset-toolbar p {
  margin: 0;
}

.asset-toolbar p {
  margin-top: 4px;
  color: var(--muted);
}

.asset-filters {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}

.asset-filters input,
.asset-filters select {
  height: 34px;
  min-width: 180px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  padding: 0 10px;
}

.asset-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  padding: 12px;
  max-height: 620px;
  overflow: auto;
  background: var(--bg);
}

.asset-item {
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--surface);
}

.asset-thumb {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #f7f8fa;
}

body.dark .asset-thumb {
  background: #111827;
}

.asset-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.asset-fallback {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: var(--muted);
  font-weight: 700;
  text-align: center;
  padding: 8px;
}

.asset-info {
  padding: 8px;
}

.asset-info strong {
  display: block;
  min-height: 38px;
  line-height: 1.35;
}

.asset-info span,
.asset-code {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.asset-code {
  margin-top: 5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.asset-empty {
  grid-column: 1 / -1;
  padding: 40px;
  text-align: center;
  color: var(--muted);
}

.checklist {
  margin: 0;
  padding-left: 22px;
  line-height: 2;
}

footer {
  text-align: center;
  color: var(--muted);
  padding: 28px 0 0;
}

@media (max-width: 980px) {
  .shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: relative;
    top: 0;
    height: auto;
  }
  .dashboard,
  .split,
  .flow {
    grid-template-columns: 1fr;
  }
  .asset-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .asset-toolbar {
    align-items: stretch;
    flex-direction: column;
  }
  .asset-filters {
    flex-wrap: wrap;
  }
  .author,
  .group {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .topbar {
    height: auto;
    min-height: 52px;
    align-items: flex-start;
    padding: 10px;
  }
  .brand strong {
    font-size: 16px;
  }
  .global-button {
    display: none;
  }
  .card {
    padding: 16px;
  }
  .asset-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .asset-filters input,
  .asset-filters select {
    min-width: 100%;
    width: 100%;
  }
}