:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --border: #e3e6ea;
  --text: #1f2328;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --mark: #fde68a;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 4px 16px rgba(0,0,0,.06);
  --radius: 10px;
  --topbar-h: 56px;
  --sidebar-w: 200px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --surface: #1a1e24;
    --surface-2: #242a32;
    --border: #2d343d;
    --text: #e6e8eb;
    --muted: #8b95a3;
    --primary: #3b82f6;
    --primary-hover: #60a5fa;
    --mark: #7c5e00;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 6px 20px rgba(0,0,0,.35);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--danger); margin: 0; font-size: 13px; }
kbd {
  font: 11px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  padding: 2px 5px; border: 1px solid var(--border); border-bottom-width: 2px;
  border-radius: 4px; background: var(--surface); color: var(--muted);
}
mark { background: var(--mark); color: inherit; border-radius: 2px; padding: 0 1px; }

/* ---------- 通用控件 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 34px; padding: 0 14px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  font-size: 14px; cursor: pointer; white-space: nowrap;
  transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover:not(:disabled) { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn.primary kbd { background: rgba(255,255,255,.18); border-color: rgba(255,255,255,.25); color: #fff; }
.btn.danger-text { border-color: transparent; background: transparent; color: var(--danger); }
.btn.danger-text:hover { background: rgba(220,38,38,.08); }
.btn.block { width: 100%; justify-content: center; height: 38px; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 8px; border: 0; background: transparent;
  color: var(--muted); cursor: pointer; font-size: 20px; line-height: 1;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
input[type=text], input[type=password], input[type=search], textarea, select {
  width: 100%; font: inherit; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 10px; outline: none;
  transition: border-color .12s, box-shadow .12s;
}
input:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
textarea { resize: vertical; min-height: 60px; line-height: 1.55; }

/* ---------- 品牌 ---------- */
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 16px; letter-spacing: .2px; }
.brand-mark {
  width: 22px; height: 22px; border-radius: 6px; background: var(--primary);
  position: relative; flex: none;
}
.brand-mark::before {
  content: ""; position: absolute; inset: 5px 4px; border: 1.5px solid #fff; border-radius: 2px;
}
.brand-mark::after {
  content: ""; position: absolute; width: 5px; height: 5px; border-radius: 50%; background: #fff;
  left: 50%; top: 50%; transform: translate(-50%, -50%);
}

/* ---------- 登录 ---------- */
.login-view { min-height: 100%; display: flex; align-items: center; justify-content: center; padding: 24px; }
.login-card {
  width: 100%; max-width: 340px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 28px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 14px;
}
.login-card .brand { font-size: 20px; }
.login-card .muted { margin: -8px 0 4px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }

/* ---------- 布局 ---------- */
.app { height: 100%; display: flex; flex-direction: column; }
.topbar {
  height: var(--topbar-h); flex: none; display: flex; align-items: center; gap: 14px;
  padding: 0 20px; background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.search { position: relative; flex: 1; max-width: 640px; }
.search-icon { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.search input { padding-left: 34px; padding-right: 32px; height: 36px; background: var(--surface-2); border-color: transparent; }
.search input:focus { background: var(--surface); border-color: var(--primary); }
.search input::-webkit-search-cancel-button { display: none; }
.search #search-clear { position: absolute; right: 3px; top: 50%; transform: translateY(-50%); width: 28px; height: 28px; }
.count { white-space: nowrap; min-width: 60px; }
.topbar #logout-btn { margin-left: auto; }

.body { flex: 1; display: flex; min-height: 0; }
.sidebar {
  width: var(--sidebar-w); flex: none; padding: 16px 12px; border-right: 1px solid var(--border);
  background: var(--surface); display: flex; flex-direction: column; gap: 16px; overflow-y: auto;
}
.cat-list { display: flex; flex-direction: column; gap: 2px; }
.cat-item {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 8px 10px; border-radius: 8px; cursor: pointer; border: 0; background: none;
  font: inherit; color: var(--text); text-align: left; width: 100%;
}
.cat-item:hover { background: var(--surface-2); }
.cat-item.active { background: rgba(37,99,235,.10); color: var(--primary); font-weight: 600; }
.cat-item .n { font-size: 12px; color: var(--muted); font-weight: normal; }
.cat-item.active .n { color: var(--primary); }
.paste-hint { margin-top: auto; font-size: 12px; color: var(--muted); line-height: 2; padding: 0 6px; }

.content { flex: 1; overflow-y: auto; padding: 20px; }

/* ---------- 上传队列 ---------- */
.upload-queue { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.up-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-radius: 8px;
  background: var(--surface); border: 1px solid var(--border); font-size: 13px;
}
.up-item img { width: 40px; height: 30px; object-fit: cover; border-radius: 4px; background: var(--surface-2); }
.up-item .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.up-item .status { color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.up-item.error .status { color: var(--danger); }
.up-item.done .status { color: #16a34a; }
.spinner {
  width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--border);
  border-top-color: var(--primary); animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; cursor: pointer; display: flex; flex-direction: column; min-width: 0;
  transition: transform .12s, box-shadow .12s, border-color .12s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: transparent; }
.card:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.card .thumb { position: relative; aspect-ratio: 4 / 3; background: var(--surface-2); overflow: hidden; }
.card .thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top left; display: block; }
.cat {
  display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; color: var(--muted);
}
.cat::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #9ca3af; }
.cat[data-cat="报表数据"]::before { background: #2563eb; }
.cat[data-cat="聊天记录"]::before { background: #16a34a; }
.cat[data-cat="配置代码"]::before { background: #7c3aed; }
.cat[data-cat="文档说明"]::before { background: #d97706; }
.card .info { padding: 10px 12px 12px; display: flex; flex-direction: column; gap: 6px; }
.card .snippet {
  font-size: 12.5px; line-height: 1.5; color: var(--text);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
  word-break: break-all; min-height: 1.5em;
}
.card .snippet.empty { color: var(--muted); font-style: italic; }
.card .foot { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); flex-wrap: wrap; }
.tag {
  display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11.5px;
  background: var(--surface-2); color: var(--muted); border: 1px solid var(--border);
}
.card .foot .time { margin-left: auto; white-space: nowrap; }

.empty { text-align: center; padding: 80px 20px; color: var(--muted); }
.empty h3 { margin: 0 0 8px; font-weight: 600; color: var(--text); font-size: 16px; }
.empty p { margin: 0; }
.more-wrap { display: flex; justify-content: center; padding: 24px 0 8px; }

/* ---------- 拖拽遮罩 ---------- */
.drop-overlay {
  position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center;
  background: rgba(37,99,235,.10); backdrop-filter: blur(2px); pointer-events: none;
}
.drop-overlay div {
  padding: 24px 40px; border: 2px dashed var(--primary); border-radius: 16px;
  background: var(--surface); color: var(--primary); font-size: 18px; font-weight: 600;
}

/* ---------- 详情弹窗 ---------- */
.modal {
  position: fixed; inset: 0; z-index: 100; background: rgba(0,0,0,.55);
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.modal-box {
  width: 100%; height: 100%; max-width: 1700px;
  background: var(--surface); border-radius: 14px; overflow: hidden; display: flex;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
/* 全屏：铺满整个窗口 */
.modal.full { padding: 0; }
.modal.full .modal-box { max-width: none; border-radius: 0; }
.modal.full #modal-full { color: var(--primary); }
.modal-image {
  flex: 1; min-width: 0; background: #0f1216; display: flex; flex-direction: column;
  align-items: center; justify-content: center; position: relative;
}
.modal-image a { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; padding: 16px; }
.modal-image img { max-width: 100%; max-height: 100%; object-fit: contain; display: block; border-radius: 4px; }
.modal-image #detail-meta { position: absolute; left: 12px; bottom: 10px; color: rgba(255,255,255,.55); }
.modal-panel { width: clamp(360px, 30%, 480px); flex: none; display: flex; flex-direction: column; border-left: 1px solid var(--border); }
.panel-head { display: flex; align-items: center; gap: 10px; padding: 12px 12px 12px 18px; border-bottom: 1px solid var(--border); }
.panel-title { font-weight: 600; flex: 1; }
.panel-body { flex: 1; overflow-y: auto; padding: 16px 18px; display: flex; flex-direction: column; gap: 16px; }
.panel-foot { display: flex; align-items: center; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--border); }
.spacer { flex: 1; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-size: 12px; font-weight: 600; color: var(--muted); }
.field > span em { font-style: normal; font-weight: normal; margin-left: 4px; }
.field.grow { flex: 1; }
.field.grow textarea { flex: 1; min-height: 160px; font-family: inherit; font-size: 13px; }

.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg button {
  font: inherit; font-size: 13px; padding: 5px 11px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
.seg button:hover { background: var(--surface-2); }
.seg button.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.tag-box {
  display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
  padding: 6px 8px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface);
  cursor: text; min-height: 40px;
}
.tag-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.tag-box .chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 4px 2px 10px; border-radius: 999px;
  background: rgba(37,99,235,.10); color: var(--primary); font-size: 12.5px;
}
.tag-box .chip button {
  border: 0; background: none; color: inherit; cursor: pointer; font-size: 15px; line-height: 1;
  width: 18px; height: 18px; border-radius: 50%; padding: 0;
}
.tag-box .chip button:hover { background: rgba(37,99,235,.18); }
.tag-box input { flex: 1; min-width: 100px; border: 0; padding: 4px 4px; background: transparent; box-shadow: none; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%); z-index: 200;
  padding: 10px 16px; border-radius: 10px; background: #1f2328; color: #fff; font-size: 13px;
  box-shadow: 0 8px 24px rgba(0,0,0,.25); max-width: 80vw;
}
.toast.error { background: var(--danger); }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .body { flex-direction: column; }
  .sidebar {
    width: auto; flex-direction: row; gap: 4px; padding: 8px 12px; overflow-x: auto;
    border-right: 0; border-bottom: 1px solid var(--border);
  }
  .cat-list { flex-direction: row; gap: 4px; }
  .cat-item { white-space: nowrap; padding: 6px 10px; gap: 5px; }
  .paste-hint { display: none; }
  .topbar { padding: 0 12px; gap: 8px; }
  .topbar .brand { font-size: 0; }
  .count { display: none; }
  .modal { padding: 0; }
  .modal-box { border-radius: 0; flex-direction: column; height: 100%; }
  .modal-image { flex: 0 0 40%; }
  .modal-panel { width: 100%; flex: 1; border-left: 0; border-top: 1px solid var(--border); }
  .content { padding: 12px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
}

/* ---------- 第二阶段：状态、标题、动作、表格 ---------- */
.card .title { font-weight: 600; font-size: 13.5px; line-height: 1.4; word-break: break-all;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card .title + .snippet { font-size: 12px; color: var(--muted); -webkit-line-clamp: 2; }
.status-chip {
  position: absolute; right: 8px; top: 8px; display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600;
  background: rgba(31,35,40,.72); color: #fff; backdrop-filter: blur(4px);
}
.status-chip.failed { background: rgba(220,38,38,.85); }
.status-chip .spinner { width: 10px; height: 10px; border-width: 2px; border-color: rgba(255,255,255,.35); border-top-color: #fff; }
.card .foot .icon-table { display: inline-flex; color: var(--muted); }
.card .foot .icon-table svg { width: 14px; height: 14px; }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.btn.small { height: 28px; padding: 0 10px; font-size: 12.5px; }
.btn.small.busy { opacity: .6; pointer-events: none; }
#detail-status { margin-left: auto; }
#detail-status.err { color: var(--danger); }
#detail-ocr.pending { color: var(--muted); font-style: italic; }
.field-label { font-size: 12px; font-weight: 600; color: var(--muted); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.table-tools { margin-left: auto; display: inline-flex; gap: 10px; }
.link-btn { border: 0; background: none; padding: 0; font: inherit; font-size: 12px; color: var(--primary); cursor: pointer; }
.link-btn:hover { text-decoration: underline; }
.link-btn.danger { color: var(--danger); }
.table-view { display: flex; flex-direction: column; gap: 12px; }
.table-view .tbl-title { font-size: 12.5px; font-weight: 600; margin: 0 0 4px; }
.table-view .tbl-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; }
.table-view table { border-collapse: collapse; font-size: 12.5px; width: max-content; min-width: 100%; }
.table-view th, .table-view td { padding: 5px 10px; border-bottom: 1px solid var(--border); border-right: 1px solid var(--border); text-align: left; white-space: nowrap; }
.table-view th:last-child, .table-view td:last-child { border-right: 0; }
.table-view tr:last-child td { border-bottom: 0; }
.table-view th { background: var(--surface-2); font-weight: 600; position: sticky; top: 0; }
.table-view .tbl-empty { color: var(--muted); font-size: 12.5px; }

/* ---------- 第三阶段：多选、分类管理、最近标签、分组、看图 ---------- */
.select-bar {
  display: flex; align-items: center; gap: 8px; padding: 8px 20px;
  background: rgba(37,99,235,.08); border-bottom: 1px solid var(--border); font-size: 13px;
}
.select-bar #select-count { font-weight: 600; margin-right: 6px; }
.app.selecting .card { cursor: default; }
.app.selecting .card .check { display: flex; }
.card .check {
  display: none; position: absolute; left: 8px; top: 8px; width: 22px; height: 22px; border-radius: 6px;
  background: rgba(255,255,255,.92); border: 1.5px solid #9ca3af; align-items: center; justify-content: center;
  color: #fff; font-size: 14px; font-weight: 700; z-index: 2;
}
.card.selected { outline: 2px solid var(--primary); outline-offset: 1px; }
.card.selected .check { background: var(--primary); border-color: var(--primary); }
.card.selected .check::after { content: "✓"; }
.count-badge {
  position: absolute; right: 8px; bottom: 8px; display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 7px; border-radius: 999px; font-size: 11px; font-weight: 600;
  background: rgba(31,35,40,.72); color: #fff; backdrop-filter: blur(4px);
}
.count-badge svg { width: 12px; height: 12px; }

.manage-cats { text-align: left; padding: 6px 10px; font-size: 12.5px; color: var(--muted); }
.manage-cats:hover { color: var(--primary); }
.dialog {
  width: min(520px, 100%); max-height: min(720px, 100%); background: var(--surface); border-radius: 14px;
  display: flex; flex-direction: column; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.dialog-body { padding: 14px 18px 18px; overflow-y: auto; display: flex; flex-direction: column; gap: 12px; }
.cat-rows { display: flex; flex-direction: column; gap: 4px; }
.cat-row { display: flex; align-items: center; gap: 6px; padding: 4px 0; }
.cat-row input { flex: 1; padding: 6px 10px; }
.cat-row input:disabled { background: var(--surface-2); color: var(--muted); }
.cat-row .n { width: 44px; text-align: right; font-size: 12px; color: var(--muted); }
.cat-row .icon-btn { width: 28px; height: 28px; font-size: 14px; }
.cat-row .icon-btn:disabled { opacity: .3; cursor: default; background: none; }
.cat-row .link-btn { font-size: 12px; margin-left: 4px; }
.cat-add { display: flex; gap: 8px; margin-top: 4px; }
.cat-add input { flex: 1; }

.recent-tags { display: flex; flex-wrap: wrap; gap: 5px; align-items: center; }
.recent-tags .label { font-size: 11.5px; color: var(--muted); margin-right: 2px; }
.recent-tags .rt {
  font: inherit; font-size: 12px; padding: 2px 9px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
}
.recent-tags .rt:hover { border-color: var(--primary); color: var(--primary); }
.recent-tags .rt.on { background: rgba(37,99,235,.10); border-color: transparent; color: var(--primary); }

.modal-image { padding-bottom: 0; }
.image-btn {
  flex: 1; min-height: 0; width: 100%; border: 0; background: none; padding: 16px; cursor: zoom-in;
  display: flex; align-items: center; justify-content: center;
}
.image-btn img { max-width: 100%; max-height: 100%; object-fit: contain; display: block; border-radius: 4px; }
.image-foot {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 0 14px 8px; color: rgba(255,255,255,.55);
}
.image-foot a { color: rgba(255,255,255,.7); }
.image-foot a:hover { color: #fff; }
.modal-image #detail-meta { position: static; }
.image-strip {
  width: 100%; display: flex; gap: 8px; padding: 8px 14px 12px; overflow-x: auto; flex: none;
  background: rgba(255,255,255,.04); border-top: 1px solid rgba(255,255,255,.08);
}
.image-strip .st {
  position: relative; flex: none; width: 76px; height: 56px; border-radius: 6px; overflow: hidden;
  border: 2px solid transparent; background: #1f2530; cursor: pointer;
}
.image-strip .st img { width: 100%; height: 100%; object-fit: cover; display: block; }
.image-strip .st.active { border-color: var(--primary); }
.image-strip .st .st-tools {
  position: absolute; inset: auto 0 0 0; display: none; justify-content: space-between;
  background: rgba(0,0,0,.65); padding: 2px 4px;
}
.image-strip .st:hover .st-tools { display: flex; }
.image-strip .st .st-tools button {
  border: 0; background: none; color: #fff; font-size: 11px; cursor: pointer; padding: 1px 3px;
}
.image-strip .st .st-tools button:hover { text-decoration: underline; }
.image-strip .st.add {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  color: rgba(255,255,255,.6); font-size: 11px; border: 1.5px dashed rgba(255,255,255,.3); background: transparent;
}
.image-strip .st.add:hover { color: #fff; border-color: rgba(255,255,255,.7); }
.image-strip .st.add span:first-child { font-size: 18px; line-height: 1; }

/* 看图 */
.lightbox { position: fixed; inset: 0; z-index: 300; background: #000; outline: none; user-select: none; }
.lightbox-stage { position: absolute; inset: 0; overflow: hidden; cursor: grab; }
.lightbox-stage.dragging { cursor: grabbing; }
.lightbox-stage img { position: absolute; left: 0; top: 0; transform-origin: 0 0; will-change: transform; }
.lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 80px; border: 0; border-radius: 10px;
  background: rgba(255,255,255,.12); color: #fff; font-size: 40px; line-height: 1; cursor: pointer;
}
.lb-nav:hover { background: rgba(255,255,255,.25); }
.lb-prev { left: 12px; }
.lb-next { right: 12px; }
.lb-bar {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); display: flex; align-items: center; gap: 6px;
  padding: 6px 10px; border-radius: 999px; background: rgba(20,22,26,.85); color: #ddd; font-size: 12.5px;
}
.lb-bar #lb-counter { padding: 0 6px; }
.lb-zoom { min-width: 42px; text-align: center; color: #9ca3af; }
.lb-btn { border: 0; border-radius: 999px; background: transparent; color: #eee; font: inherit; font-size: 12.5px; padding: 4px 10px; cursor: pointer; }
.lb-btn:hover { background: rgba(255,255,255,.15); }

@media (max-width: 860px) {
  .select-bar { padding: 8px 12px; flex-wrap: wrap; }
  .image-strip .st { width: 60px; height: 44px; }
  .lb-nav { width: 36px; height: 60px; font-size: 30px; }
}

/* ---------- 显示模式 ---------- */
.seg-icons { display: inline-flex; gap: 2px; padding: 3px; border-radius: 9px; background: var(--surface-2); }
.seg-icons button {
  width: 30px; height: 28px; border: 0; border-radius: 6px; background: transparent; color: var(--muted);
  display: inline-flex; align-items: center; justify-content: center; cursor: pointer;
}
.seg-icons button svg { width: 16px; height: 16px; fill: currentColor; }
.seg-icons button:hover { color: var(--text); }
.seg-icons button.active { background: var(--surface); color: var(--primary); box-shadow: 0 1px 2px rgba(0,0,0,.08); }

.card .hover-title { display: none; }

/* 大网格 */
.grid.mode-grid-l { grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 20px; }
.grid.mode-grid-l .card .title { font-size: 15px; }
.grid.mode-grid-l .card .snippet { font-size: 13px; -webkit-line-clamp: 3; }

/* 小网格 */
.grid.mode-grid-s { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.grid.mode-grid-s .card .info { padding: 7px 9px 8px; gap: 3px; }
.grid.mode-grid-s .card .title { font-size: 12.5px; -webkit-line-clamp: 1; }
.grid.mode-grid-s .card .snippet { font-size: 11.5px; -webkit-line-clamp: 1; min-height: 0; }
.grid.mode-grid-s .card .title + .snippet { display: none; }
.grid.mode-grid-s .card .tag, .grid.mode-grid-s .card .icon-table { display: none; }
.grid.mode-grid-s .card .foot { font-size: 11px; }
.grid.mode-grid-s .status-chip, .grid.mode-grid-s .count-badge { font-size: 10px; padding: 1px 6px; }

/* 列表 */
.grid.mode-list { display: flex; flex-direction: column; gap: 8px; }
.grid.mode-list .card { flex-direction: row; align-items: stretch; }
.grid.mode-list .card:hover { transform: none; }
.grid.mode-list .card .thumb { width: 120px; height: 84px; aspect-ratio: auto; flex: none; }
.grid.mode-list .card .info { flex: 1; min-width: 0; padding: 8px 14px; justify-content: center; gap: 4px; }
.grid.mode-list .card .title { -webkit-line-clamp: 1; }
.grid.mode-list .card .snippet { -webkit-line-clamp: 2; min-height: 0; }
.grid.mode-list .card .foot .time { margin-left: auto; }

/* 瀑布流：行跨度由 JS 计算 */
.grid.mode-masonry { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); grid-auto-rows: 4px; gap: 0 16px; align-items: start; }
.grid.mode-masonry .card { margin-bottom: 16px; }
.grid.mode-masonry .card .thumb { aspect-ratio: var(--ar, 4 / 3); max-height: 520px; }
.grid.mode-masonry .card .thumb img { object-fit: contain; object-position: center; }

/* 图墙 */
.grid.mode-wall { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 6px; }
.grid.mode-wall .card { border-radius: 6px; }
.grid.mode-wall .card .thumb { aspect-ratio: 1 / 1; }
.grid.mode-wall .card .info { display: none; }
.grid.mode-wall .card .hover-title {
  display: block; position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 8px 7px;
  font-size: 12px; line-height: 1.3; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  background: linear-gradient(to top, rgba(0,0,0,.72), rgba(0,0,0,0)); opacity: 0; transition: opacity .15s; pointer-events: none;
}
.grid.mode-wall .card:hover .hover-title { opacity: 1; }
.grid.mode-wall .card.selected .hover-title { opacity: 1; }

@media (max-width: 860px) {
  .seg-icons button[data-mode="grid-l"], .seg-icons button[data-mode="grid-s"], .seg-icons button[data-mode="masonry"] { display: none; }
  .grid.mode-grid-l { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
  .grid.mode-list .card .thumb { width: 88px; height: 62px; }
  .grid.mode-list .card .info { padding: 6px 10px; }
  .grid.mode-wall { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 4px; }
}

/* 手机顶栏：给搜索框让位 */
@media (max-width: 860px) {
  .topbar .brand { display: none; }
  .topbar { gap: 6px; }
  .search { min-width: 120px; }
  .search input { padding-right: 28px; }
  #upload-btn { padding: 0 10px; }
  #upload-btn .btn-text { display: none; }
  #select-btn { padding: 0 10px; }
  .seg-icons { padding: 2px; }
  .seg-icons button { width: 28px; height: 26px; }
}

/* ---------- 第四阶段：筛选栏、收藏、回收站、右键菜单、字段、译文、分享、问答 ---------- */
.filter-bar {
  display: flex; align-items: center; gap: 14px; padding: 6px 20px; font-size: 12.5px; color: var(--muted);
  background: var(--surface); border-bottom: 1px solid var(--border);
}
.filter-bar label { display: inline-flex; align-items: center; gap: 6px; }
.filter-bar select, .filter-bar input[type=date] {
  width: auto; padding: 3px 8px; font-size: 12.5px; border-radius: 6px; background: var(--surface-2); border-color: transparent; color: var(--text);
}
.filter-bar select:focus, .filter-bar input:focus { border-color: var(--primary); box-shadow: none; }
.date-range { display: inline-flex; align-items: center; gap: 6px; }
.view-label { color: var(--primary); font-weight: 600; }

.special-list { margin-top: 6px; padding-top: 8px; border-top: 1px solid var(--border); }
.app.trash-view .card { opacity: .78; }
.app.trash-view .card:hover { opacity: 1; }

.card .star-btn {
  position: absolute; right: 8px; top: 8px; width: 26px; height: 26px; border: 0; border-radius: 50%;
  background: rgba(31,35,40,.55); color: #fff; font-size: 15px; line-height: 1; cursor: pointer; opacity: 0;
  display: flex; align-items: center; justify-content: center; backdrop-filter: blur(4px); z-index: 2;
}
.card:hover .star-btn { opacity: 1; }
.card .star-btn.on { opacity: 1; color: #fbbf24; background: rgba(31,35,40,.7); }
.card .star-btn:hover { transform: scale(1.1); }
.card .status-chip { right: 40px; }
.app.selecting .card .star-btn { display: none; }
.star-toggle {
  border: 0; background: none; font-size: 20px; line-height: 1; color: #cbd5e1; cursor: pointer; padding: 2px 4px; margin-right: 2px;
}
.star-toggle.on { color: #f59e0b; }
.star-toggle:hover { color: #f59e0b; }
.trash-notice { padding: 8px 18px; background: rgba(220,38,38,.08); color: var(--danger); font-size: 12.5px; border-bottom: 1px solid var(--border); }

.ctx-menu {
  position: fixed; z-index: 250; min-width: 150px; padding: 4px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border); box-shadow: 0 10px 30px rgba(0,0,0,.18);
}
.ctx-menu button {
  display: block; width: 100%; text-align: left; border: 0; background: none; padding: 7px 12px; border-radius: 6px;
  font: inherit; font-size: 13px; color: var(--text); cursor: pointer;
}
.ctx-menu button:hover { background: var(--surface-2); }
.ctx-menu button.danger { color: var(--danger); }
.ctx-menu hr { border: 0; border-top: 1px solid var(--border); margin: 4px 0; }

.fields-view { display: flex; flex-wrap: wrap; gap: 6px; }
.fields-view .fld {
  font: inherit; font-size: 12px; padding: 3px 9px; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text); text-align: left;
}
.fields-view .fld b { font-weight: 600; color: var(--muted); margin-right: 4px; }
.fields-view .fld:hover { border-color: var(--primary); color: var(--primary); }
.fields-view .fld-empty { font-size: 12px; color: var(--muted); }

.share-panel { display: flex; flex-direction: column; gap: 8px; padding: 10px 12px; border-radius: 8px; background: var(--surface-2); font-size: 12.5px; }
.share-row { display: flex; align-items: center; gap: 8px; }
.share-row select { width: auto; padding: 4px 8px; font-size: 12.5px; }
.share-row input { flex: 1; font-size: 12.5px; padding: 5px 8px; }

.ask-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(440px, 100%); z-index: 90;
  background: var(--surface); border-left: 1px solid var(--border); box-shadow: -10px 0 30px rgba(0,0,0,.12);
  display: flex; flex-direction: column;
}
.ask-drawer .panel-head { padding: 12px 12px 12px 18px; }
.ask-messages { flex: 1; overflow-y: auto; padding: 14px 18px; display: flex; flex-direction: column; gap: 12px; }
.ask-hint { color: var(--muted); font-size: 12.5px; line-height: 1.7; }
.ask-msg { max-width: 92%; padding: 9px 12px; border-radius: 12px; font-size: 13.5px; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }
.ask-msg.user { align-self: flex-end; background: var(--primary); color: #fff; border-bottom-right-radius: 4px; }
.ask-msg.assistant { align-self: flex-start; background: var(--surface-2); border-bottom-left-radius: 4px; }
.ask-msg.error { background: rgba(220,38,38,.1); color: var(--danger); }
.ask-msg .cite { color: var(--primary); font-size: 11px; vertical-align: super; cursor: pointer; margin: 0 1px; }
.ask-sources { align-self: flex-start; display: flex; flex-wrap: wrap; gap: 6px; margin-top: -6px; }
.ask-src {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 8px 3px 3px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); font: inherit; font-size: 12px; color: var(--text); cursor: pointer; max-width: 100%;
}
.ask-src img { width: 32px; height: 24px; object-fit: cover; border-radius: 4px; background: var(--surface-2); }
.ask-src span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 200px; }
.ask-src:hover { border-color: var(--primary); }
.ask-src .no { color: var(--primary); font-weight: 600; }
.ask-form { display: flex; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--border); }
.ask-form textarea { flex: 1; min-height: 44px; resize: none; }
.ask-form .btn { align-self: flex-end; }
.ask-thinking { color: var(--muted); font-size: 12.5px; display: inline-flex; align-items: center; gap: 6px; }

@media (max-width: 860px) {
  .filter-bar { padding: 6px 12px; gap: 10px; flex-wrap: wrap; }
  .card .star-btn { opacity: 1; }
}

/* ---------- 第五阶段：标签侧栏、时间线、统计、编辑器 ---------- */
.tag-side { margin-top: 6px; padding-top: 8px; border-top: 1px solid var(--border); }
.tag-side .side-title { font-size: 11.5px; color: var(--muted); padding: 0 10px 4px; display: flex; align-items: center; }
.tag-side .side-title .link-btn { margin-left: auto; font-size: 11.5px; }
.tag-side .tag-items { display: flex; flex-wrap: wrap; gap: 4px; padding: 0 8px; }
.tag-side .tg {
  font: inherit; font-size: 12px; padding: 2px 8px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); max-width: 100%;
  display: inline-flex; align-items: center; gap: 4px;
}
.tag-side .tg .n { color: var(--muted); font-size: 11px; }
.tag-side .tg:hover { border-color: var(--primary); color: var(--primary); }
.tag-side .tg.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.tag-side .tg.active .n { color: rgba(255,255,255,.75); }
.card .tag { cursor: pointer; }
.card .tag:hover { border-color: var(--primary); color: var(--primary); }
#tag-chips { display: inline-flex; flex-wrap: wrap; gap: 6px; align-items: center; }
#tag-chips .chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 4px 2px 10px; border-radius: 999px;
  background: rgba(37,99,235,.10); color: var(--primary); font-size: 12.5px;
}
#tag-chips .chip button { border: 0; background: none; color: inherit; cursor: pointer; font-size: 15px; line-height: 1; width: 18px; height: 18px; border-radius: 50%; padding: 0; }
#tag-chips .chip button:hover { background: rgba(37,99,235,.18); }
.tags-dialog .tag-items { display: flex; flex-wrap: wrap; gap: 6px; }
.tags-dialog .tg { font: inherit; font-size: 13px; padding: 4px 11px; border-radius: 999px; cursor: pointer; border: 1px solid var(--border); background: var(--surface); color: var(--text); }
.tags-dialog .tg .n { color: var(--muted); font-size: 11.5px; margin-left: 4px; }
.tags-dialog .tg.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.tags-dialog .tg.active .n { color: rgba(255,255,255,.75); }

/* 时间线 */
.grid.mode-timeline { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.grid.mode-timeline .date-head {
  grid-column: 1 / -1; margin: 10px 0 -4px; font-size: 14px; font-weight: 600; display: flex; align-items: baseline; gap: 8px;
  padding-top: 8px; border-top: 1px solid var(--border);
}
.grid.mode-timeline .date-head:first-child { border-top: 0; margin-top: 0; padding-top: 0; }
.grid.mode-timeline .date-head .n { font-size: 12px; font-weight: normal; color: var(--muted); }
.grid.mode-timeline .date-head .wd { font-size: 12px; font-weight: normal; color: var(--muted); }
.timeline-rail {
  position: fixed; right: 14px; top: calc(var(--topbar-h) + 60px); bottom: 20px; width: 92px; overflow-y: auto; z-index: 4;
  padding: 6px; border-radius: 10px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); font-size: 12px;
}
.timeline-rail .rm { color: var(--muted); font-size: 11px; padding: 6px 6px 2px; font-weight: 600; }
.timeline-rail .rd { display: block; width: 100%; text-align: left; border: 0; background: none; padding: 3px 6px; border-radius: 6px; font: inherit; font-size: 12px; color: var(--text); cursor: pointer; }
.timeline-rail .rd:hover { background: var(--surface-2); }
.timeline-rail .rd.active { background: rgba(37,99,235,.10); color: var(--primary); font-weight: 600; }
.timeline-rail .rd .n { float: right; color: var(--muted); font-size: 11px; }
.app.has-rail .content { padding-right: 124px; }

/* 统计 */
.stats-dialog { width: min(760px, 100%); }
.stat-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 8px; }
.stat-tile { padding: 10px 12px; border-radius: 10px; background: var(--surface-2); }
.stat-tile .v { font-size: 20px; font-weight: 600; line-height: 1.2; }
.stat-tile .l { font-size: 11.5px; color: var(--muted); margin-top: 2px; }
.stat-sec { display: flex; flex-direction: column; gap: 8px; }
.stat-sec h4 { margin: 4px 0 0; font-size: 13px; font-weight: 600; }
.stat-sec .sub { font-size: 11.5px; color: var(--muted); }
.bars { display: flex; align-items: flex-end; gap: 6px; height: 120px; padding: 0 2px; border-bottom: 1px solid var(--border); }
.bars .col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; position: relative; }
.bars .bar { width: 100%; max-width: 34px; background: var(--primary); border-radius: 4px 4px 0 0; min-height: 2px; opacity: .85; transition: opacity .1s; }
.bars .col:hover .bar { opacity: 1; }
.bars .col .tip {
  position: absolute; bottom: 100%; margin-bottom: 4px; font-size: 11px; color: var(--text); background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; padding: 2px 6px; white-space: nowrap; opacity: 0; pointer-events: none;
}
.bars .col:hover .tip { opacity: 1; }
.bars-x { display: flex; gap: 6px; padding: 4px 2px 0; }
.bars-x span { flex: 1; text-align: center; font-size: 10.5px; color: var(--muted); }
.hbars { display: flex; flex-direction: column; gap: 5px; }
.hbar { display: grid; grid-template-columns: 80px 1fr 40px; align-items: center; gap: 8px; font-size: 12.5px; }
.hbar .lab { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hbar .trk { height: 12px; background: var(--surface-2); border-radius: 4px; overflow: hidden; }
.hbar .fil { height: 100%; background: var(--primary); border-radius: 4px; opacity: .85; }
.hbar .val { text-align: right; color: var(--muted); }
.usage-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.usage-table th, .usage-table td { padding: 5px 8px; border-bottom: 1px solid var(--border); text-align: right; }
.usage-table th:first-child, .usage-table td:first-child { text-align: left; }
.usage-table th { color: var(--muted); font-weight: 600; }

/* 编辑器 */
.editor { position: fixed; inset: 0; z-index: 400; background: #0f1216; display: flex; flex-direction: column; outline: none; color: #e6e8eb; }
.ed-toolbar { display: flex; align-items: center; gap: 10px; padding: 8px 14px; background: #1a1e24; border-bottom: 1px solid #2d343d; flex-wrap: wrap; }
.ed-group { display: inline-flex; gap: 3px; padding: 3px; border-radius: 8px; background: #242a32; }
.ed-group button { border: 0; border-radius: 6px; background: transparent; color: #cbd5e1; font: inherit; font-size: 12.5px; padding: 5px 9px; cursor: pointer; min-width: 30px; }
.ed-group button:hover { background: #2d343d; color: #fff; }
.ed-group button.active { background: var(--primary); color: #fff; }
.ed-group button:disabled { opacity: .35; cursor: default; }
.ed-colors button { width: 26px; height: 26px; border-radius: 50%; padding: 0; position: relative; }
.ed-colors button::after { content: ""; position: absolute; inset: 5px; border-radius: 50%; background: var(--c); box-shadow: 0 0 0 1px rgba(255,255,255,.25); }
.ed-colors button.active { background: #2d343d; box-shadow: 0 0 0 2px var(--primary); }
.ed-hint { font-size: 12px; color: #8b95a3; }
.ed-toolbar .btn { background: #242a32; border-color: #2d343d; color: #e6e8eb; }
.ed-toolbar .btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.ed-toolbar kbd { background: #2d343d; border-color: #3b4350; color: #cbd5e1; }
.ed-stage { flex: 1; position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.ed-canvas { box-shadow: 0 10px 40px rgba(0,0,0,.5); background: #fff; touch-action: none; }
.ed-apply-crop { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); }
.ed-text-input { position: absolute; width: 240px; padding: 6px 8px; font-size: 14px; border: 2px solid var(--primary); border-radius: 6px; background: #fff; color: #111; z-index: 2; }
.ed-save { display: flex; align-items: center; gap: 16px; padding: 10px 16px; background: #1a1e24; border-top: 1px solid #2d343d; font-size: 13px; flex-wrap: wrap; }
.ed-save label { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; }
.ed-save .btn { background: #242a32; border-color: #2d343d; color: #e6e8eb; }
.ed-save .btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }

@media (max-width: 860px) {
  .timeline-rail { display: none; }
  .app.has-rail .content { padding-right: 12px; }
  .ed-toolbar { gap: 6px; padding: 6px 8px; }
  .ed-hint { display: none; }
}