:root {
  /* Claude.ai official palette — warm white canvas + Claude coral (#d97757) */
  --bg: #faf9f5;
  --panel: #ffffff;
  --sidebar: #f3f1ea;
  --text: #141413;
  --text-soft: #3d3d3a;
  --muted: #8f8d86;
  --line: #e9e6dd;
  --line-soft: #f0eee6;
  --accent: #d97757;
  --accent-hover: #c45f43;
  --accent-soft: #f6e5dd;
  --accent-tint: #fbf3ef;
  --hot: #b8553a;
  --hot-soft: #f6e3da;
  --follow: #5f7488;
  --follow-soft: #e7edf2;
  --star: #c08a2e;
  --star-soft: #faf2e0;
  --warn: #b45309;
  --radius: 12px;
  --radius-sm: 9px;
  --sidebar-w: 272px;
  --shadow: 0 1px 2px rgba(20, 20, 19, 0.04), 0 8px 24px rgba(20, 20, 19, 0.05);
  --serif: "Newsreader", "Songti SC", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(360px, 1fr) minmax(420px, 42vw);
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  transition: grid-template-columns .24s ease;
}
body.detail-closed { grid-template-columns: var(--sidebar-w) minmax(360px, 1fr) 0; }

/* ---------- sidebar ---------- */
.sidebar {
  height: 100vh;
  overflow: auto;
  background: var(--sidebar);
  border-right: 1px solid var(--line);
  padding: 22px 18px;
}
.brand {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-mark { color: var(--accent); font-size: 18px; }

.search, input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  background: var(--panel);
  transition: border-color .15s, box-shadow .15s;
}
.search:focus, input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

.filters { display: flex; flex-wrap: wrap; gap: 7px; margin: 14px 0 0; }
button {
  font: inherit;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-soft);
  border-radius: 999px;
  padding: 7px 13px;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s, transform .05s;
}
button:hover { border-color: #d4d0c4; }
button:active { transform: translateY(1px); }
.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.subfilters {
  display: flex;
  gap: 6px;
  padding: 5px;
  background: var(--accent-tint);
  border: 1px solid var(--accent-soft);
  border-radius: 999px;
  max-width: 420px;
}
.subfilters.compact {
  gap: 3px;
  padding: 3px;
  max-width: none;
  border-radius: 12px;
  flex-wrap: wrap;
}
/* 折叠态：只露一行高度，多出来的裁掉，配合「展开/收起」按钮。 */
.subfilters.compact.clipped {
  max-height: 32px;
  overflow: hidden;
}
.subfilters.hidden { display: none; }
.row-toggle {
  flex: none;
  align-self: flex-start;
  margin-top: 3px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-soft);
  border-radius: 9px;
  padding: 4px 9px;
  font-size: 11.5px;
  white-space: nowrap;
  cursor: pointer;
}
.row-toggle:hover { color: var(--accent); border-color: var(--accent-soft); }
.row-toggle.add { color: var(--accent); border-color: var(--accent-soft); }
.row-toggle[hidden] { display: none; }
.subchip {
  flex: 1;
  border: 0;
  background: transparent;
  border-radius: 999px;
  padding: 6px 8px;
  font-size: 12.5px;
  color: var(--text-soft);
  white-space: nowrap;
}
.subchip:hover { background: rgba(217, 119, 87, 0.08); border-color: transparent; }
.subchip.active { background: var(--panel); color: var(--accent); box-shadow: var(--shadow); }
.subfilters.compact .subchip {
  flex: none;
  padding: 5px 9px;
  border-radius: 9px;
  font-size: 12px;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  margin: 16px 2px 4px;
  cursor: pointer;
}
.toggle input { width: auto; accent-color: var(--accent); }
.toggle.inline { margin: 0; color: var(--text-soft); }
.toggles { display: flex; gap: 18px; margin: 14px 2px 0; }
.toggles .toggle { margin: 0; font-size: 13px; }
.date-filter {
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .46);
}
.date-filter-head {
  display: grid;
  gap: 7px;
}
.date-filter-head > span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
}
.date-quick-filters {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 5px;
}
.date-quick-filters button {
  min-width: 0;
  padding: 5px 6px;
  border-radius: 7px;
  font-size: 12px;
  line-height: 1.2;
}
.date-quick-filters button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.date-custom {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.date-custom label {
  display: grid;
  gap: 3px;
  min-width: 0;
  color: var(--muted);
  font-size: 11px;
}
.date-custom input {
  min-width: 0;
  padding: 7px 8px;
  border-radius: 7px;
  font-size: 12px;
}

.facet-title {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 22px 0 10px;
}
.row-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.mini-action {
  border: 0;
  border-radius: var(--radius-sm);
  padding: 3px 7px;
  background: var(--line-soft);
  color: var(--text-soft);
  font-size: 11px;
}
.asset-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.asset-stat {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 9px 10px;
  background: var(--panel);
  text-align: left;
  cursor: pointer;
  transition: border-color .12s, background .12s;
}
.asset-stat:hover { border-color: var(--accent); }
.asset-stat.active { border-color: var(--accent); background: var(--accent-tint); }
.asset-stat strong { display: block; font-size: 19px; line-height: 1.1; font-family: var(--serif); }
.asset-stat span { color: var(--muted); font-size: 12px; }

.asset-expand { display: grid; gap: 4px; margin-top: 8px; max-height: 46vh; overflow: auto; }
.asset-more {
  font-size: 11.5px;
  color: var(--accent-hover);
  background: transparent;
  border: 0;
  padding: 4px 2px;
  text-align: left;
  cursor: pointer;
}
.asset-more:hover { text-decoration: underline; }
/* 个人画像：多角度可读展示（替代兴趣标签 + 偏好权重） */
.portrait { display: grid; gap: 9px; margin: 4px 0 8px; }
.portrait-sec { background: var(--panel-soft, #f8fafc); border-radius: 10px; padding: 8px 10px; }
.portrait-sec-title { font-weight: 700; font-size: 12px; color: var(--text-soft); margin-bottom: 3px; }
.portrait-sec-text { font-size: 12px; line-height: 1.55; color: var(--text); }
.portrait-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.ptag { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--chip, #eef2f7); color: var(--text); cursor: pointer; border: 1px solid transparent; }
.ptag:hover { border-color: var(--accent, #6366f1); color: var(--accent-hover, #4338ca); }
.portrait-note { font-size: 11.5px; line-height: 1.5; color: var(--text-soft); margin-top: 4px; }
/* 左侧紧凑画像 */
.portrait-edit { width: 100%; text-align: left; margin-bottom: 6px; }
.portrait-sec.compact { display: flex; align-items: baseline; gap: 6px; background: transparent; padding: 3px 2px; flex-wrap: wrap; }
.portrait-sec.compact .portrait-sec-title { white-space: nowrap; }
.ptag-more { font-size: 11px; color: var(--muted); }
/* 右侧画像编辑页 */
.profile-editor { display: grid; gap: 12px; max-height: 64vh; overflow: auto; padding: 4px 2px; }
.pe-dim { border: 1px solid var(--border); border-radius: 10px; padding: 9px 11px; }
.pe-head { display: flex; justify-content: space-between; align-items: center; }
.pe-title { font-weight: 700; font-size: 13px; }
.pe-auto { font-size: 11px; color: var(--muted); }
.pe-reset { font-size: 11px; color: var(--accent-hover, #4338ca); background: transparent; border: 0; cursor: pointer; }
.pe-reset:hover { text-decoration: underline; }
.pe-desc { font-size: 11px; color: var(--text-soft); margin: 2px 0 6px; }
.pe-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 6px; }
.pe-tag { display: inline-flex; align-items: center; gap: 3px; font-size: 12px; padding: 3px 4px 3px 9px; border-radius: 999px; background: var(--chip, #eef2f7); }
.pe-x { border: 0; background: transparent; cursor: pointer; color: var(--muted); font-size: 13px; line-height: 1; padding: 0 3px; }
.pe-x:hover { color: #dc2626; }
.pe-add { font-size: 12px; padding: 3px 6px; border-radius: 7px; border: 1px solid var(--border); background: var(--panel); }
.pe-dim-ro { opacity: 0.85; }
.pe-tag-ro { display: inline-flex; align-items: center; font-size: 12px; padding: 3px 9px; border-radius: 999px; background: var(--line-soft); color: var(--text-soft); }
.pe-inferred { font-size: 11px; color: var(--muted); font-style: italic; }
.pe-note { font-size: 11px; color: var(--muted); margin-left: 4px; }
.asset-expand.hidden { display: none; }
.asset-expand-title { font-weight: 700; font-size: 12px; color: var(--text-soft); padding: 4px 2px; }
.asset-expand-empty { padding: 6px 2px; font-size: 12px; }
.asset-rating { color: var(--star); font-variant-numeric: tabular-nums; white-space: nowrap; }
.asset-folders { display: grid; gap: 5px; margin-bottom: 10px; }
.folder-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  padding: 7px 9px;
}
.folder-link:hover, .folder-link.drag-over {
  border-color: var(--accent);
  background: var(--accent-tint);
}
.folder-icon { color: var(--accent); font-size: 12px; }
.folder-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.folder-link small, .folder-empty { color: var(--muted); font-size: 12px; }

.preference-list { display: grid; gap: 6px; }
.recent-assets { display: grid; gap: 6px; margin-top: 8px; }
.topic {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  width: 100%;
  border-radius: var(--radius-sm);
  text-align: left;
}
.topic small { color: var(--muted); font-variant-numeric: tabular-nums; }
.asset-link {
  display: grid;
  gap: 2px;
  width: 100%;
  text-align: left;
  border-radius: var(--radius-sm);
}
.asset-link span { font-weight: 650; }
.asset-link small { color: var(--muted); overflow-wrap: anywhere; }
.asset-link.compact { gap: 1px; padding-block: 5px; }
.asset-link.compact span,
.asset-link.compact small {
  overflow: hidden;
  text-overflow: ellipsis;
}
.asset-link.compact span { white-space: nowrap; }
.asset-link.compact small {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  line-height: 1.35;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 12px;
  background: var(--line-soft);
  border: 0;
  border-radius: 999px;
  padding: 5px 11px;
  color: var(--text-soft);
}
.tag:hover { background: #e8e4d8; }
.tag.active { background: var(--accent-soft); color: var(--accent); }
.metric-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 2px 8px;
  background: var(--star-soft);
  color: var(--star);
  font-size: 12px;
  font-weight: 650;
}

.sidebar-actions { display: grid; gap: 6px; margin: 16px 0 4px; }
.act {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  color: var(--text);
  font-weight: 550;
  font-size: 13.5px;
}
.act:hover { border-color: var(--accent); background: var(--accent-tint); }
.act-ic {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex: none;
  border-radius: 8px;
  background: var(--accent-tint);
  color: var(--accent);
  font-size: 14px;
  line-height: 1;
}
.act:hover .act-ic { background: var(--accent); color: #fff; }

.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-weight: 600;
}
.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.ghost { border-radius: var(--radius-sm); padding: 10px 14px; background: transparent; }