:root {
  /* 表面 / 文本 */
  --bg: #f4f6fb;
  --surface: #ffffff;
  --sidebar-bg: #1f2a44;
  --sidebar-bg-2: #16203a;
  --sidebar-text: #c7d0e4;
  --sidebar-active: #2f6df6;
  /* 品牌主色（单一事实来源） */
  --primary: #2f6df6;
  --primary-soft: #e8f0ff;
  --primary-ink: #1d4ed8;
  --text: #1f2733;
  --text-soft: #6b7689;
  --muted: var(--text-soft);
  --border: #e6eaf2;
  --bg-soft: #eef1f6;
  /* 语义状态色 + 深底深字（对比度达标，WCAG AA） */
  --danger: #e5484d;   --danger-ink: #b42318;
  --success: #16a34a;  --success-ink: #15803d;
  --warn: #d97706;     --warn-ink: #b45309;
  /* 圆角令牌（统一全站，禁硬编码 9/10/14px） */
  --radius: 12px;
  --radius-xs: 9px;
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  /* 间距令牌（8pt 网格） */
  --sp-2: 8px; --sp-3: 12px; --sp-4: 16px; --sp-5: 20px; --sp-6: 24px;
  --shadow: 0 6px 24px rgba(31, 42, 68, 0.08);
  /* 图表语义色板（统一首页 KPI / 趋势 / 状态分布，避免硬编码漂移） */
  --c-blue: var(--primary);
  --c-red: #e5484d;
  --c-amber: #f5a623;
  --c-green: #2bb673;
  --c-track: #eef1f5;
  --c-ink: var(--text);
  --c-ink-soft: var(--text-soft);
  --c-disabled: #d7dee8;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
code {
  background: #eef1f6; padding: 1px 6px; border-radius: 4px;
  font-size: 12px; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
}

.app { display: flex; height: 100vh; overflow: hidden; }

/* ===== 侧边栏 ===== */
.sidebar {
  width: 248px;
  background: linear-gradient(180deg, var(--sidebar-bg), var(--sidebar-bg-2));
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  transition: width .2s ease;
  flex-shrink: 0;
}
.sidebar.collapsed { width: 64px; }
.sidebar.collapsed .brand-text,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .nav-caret,
.sidebar.collapsed .user-info,
.sidebar.collapsed .nav-dot { display: none; }
.sidebar.collapsed .nav-children { display: none !important; }

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 16px;
  position: relative;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.brand-logo {
  width: 38px; height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #2f6df6, #6aa1ff);
  color: #fff; font-weight: 700; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.brand-text { line-height: 1.3; flex: 1; min-width: 0; }
.brand-title { color: #fff; font-weight: 600; font-size: 15px; white-space: nowrap; }
.brand-sub { color: #8a96b3; font-size: 11px; white-space: nowrap; }
.sidebar-toggle {
  background: transparent; border: none; color: #8a96b3;
  font-size: 18px; cursor: pointer; padding: 2px 6px; border-radius: 6px;
}
.sidebar-toggle:hover { background: rgba(255,255,255,.08); color: #fff; }

.nav { padding: 10px 8px; flex: 1; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; margin: 2px 0;
  border-radius: var(--radius-md); color: var(--sidebar-text);
  text-decoration: none; cursor: pointer; user-select: none;
  position: relative;
}
.nav-item:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav-item.active { background: var(--sidebar-active); color: #fff; box-shadow: 0 4px 14px rgba(47,109,246,.4); }
.nav-icon { width: 20px; text-align: center; font-size: 16px; flex-shrink: 0; }
.nav-label { flex: 1; white-space: nowrap; }
.nav-caret { font-size: 11px; transition: transform .2s; }
.nav-parent.open .nav-caret { transform: rotate(90deg); }
.nav-children { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.nav-group.open .nav-children { max-height: 1600px; }
.nav-child { padding-left: 40px; font-size: 13px; }
.nav-child .nav-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #566187; flex-shrink: 0;
}
.nav-child.active .nav-dot { background: #fff; }

/* ===== 侧边栏树形节点 ===== */
.tree-node { position: relative; }
.tree-row {
  display: flex; align-items: center; gap: 6px;
  padding: 9px 10px 9px 12px; margin: 1px 0;
  border-radius: var(--radius-xs); color: var(--sidebar-text);
  cursor: pointer; user-select: none;
  transition: background .15s;
}
.tree-row:hover { background: rgba(255,255,255,.06); color: #fff; }
.tree-row.active { background: var(--sidebar-active); color: #fff; }
.tree-toggle {
  width: 18px; height: 18px; display: flex; align-items: center; justify-content: center;
  font-size: 11px; color: #8a96b3; flex-shrink: 0; transition: transform .2s;
}
.tree-row:hover .tree-toggle { color: #fff; }
.tree-node.open > .tree-row > .tree-toggle { transform: rotate(90deg); }
.tree-toggle.leaf { visibility: hidden; }
.tree-icon { width: 18px; text-align: center; font-size: 14px; flex-shrink: 0; }
.tree-label { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.tree-label[contenteditable="true"] {
  background: #fff; color: var(--text); outline: none; border-radius: 4px; padding: 2px 6px;
}
.tree-actions {
  display: flex; align-items: center; gap: 2px; opacity: 0; transition: opacity .15s;
}
.tree-row:hover .tree-actions { opacity: 1; }
.tree-actions button {
  background: transparent; border: none; color: #8a96b3; cursor: pointer;
  font-size: 13px; width: 22px; height: 22px; border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
}
.tree-actions button:hover { background: rgba(255,255,255,.12); color: #fff; }
.tree-actions button.danger:hover { color: #ffb3b3; }
.tree-children {
  max-height: 0; overflow: hidden; transition: max-height .25s ease;
  padding-left: 18px;
}
.tree-node.open > .tree-children { max-height: 1200px; }

.sidebar-footer { padding: 12px; border-top: 1px solid rgba(255,255,255,.06); }
.user-chip { display: flex; align-items: center; gap: 10px; }
.user-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: #2f6df6; color: #fff; display: flex;
  align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0;
}
.user-info { line-height: 1.25; min-width: 0; }
.user-name { color: #fff; font-size: 13px; }
.user-role { color: #8a96b3; font-size: 11px; }

/* ===== 主区域 ===== */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 58px; background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 14px;
  padding: 0 20px; flex-shrink: 0;
}
.menu-btn {
  background: transparent; border: none; font-size: 20px;
  cursor: pointer; color: var(--text-soft); display: none;
}
.topbar-title { font-size: 17px; font-weight: 600; }
.topbar-actions { margin-left: auto; }
.cloud-badge {
  background: #eef1f6; color: var(--text-soft);
  padding: 6px 12px; border-radius: 20px; font-size: 12px; white-space: nowrap;
}
.cloud-badge.on { background: #e7f7ee; color: var(--success-ink); }
.sync-btn {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: #fff; color: var(--text); font-size: 13px; font-weight: 600; cursor: pointer;
  transition: background .15s, border-color .15s;
}
.sync-btn:hover { background: #f4f7fb; border-color: var(--primary); color: var(--primary); }
@media (max-width: 560px) {
  .sync-btn { padding: 7px 10px; font-size: 12px; }
}

.theme-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 34px; flex-shrink: 0;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--surface); color: var(--text); cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.theme-btn:hover { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
.theme-btn .ico { width: 18px; height: 18px; }

.content { flex: 1; overflow-y: auto; padding: 22px; }

/* 卡片/通用 */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.page-head { display: flex; align-items: center; margin-bottom: 18px; gap: 14px; }
.page-head h2 { margin: 0; font-size: 20px; }
.page-head .sub { color: var(--text-soft); font-size: 13px; }

/* 首页分区：带图标标题的清晰信息层次 */
.home-section { margin-top: 26px; }
.hs-head { display: flex; align-items: center; gap: 9px; margin-bottom: 13px; }
.hs-ico { display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; border-radius: 8px; background: var(--primary-soft); color: var(--primary); flex: none; }
.hs-ico .ico { width: 15px; height: 15px; }
.hs-title { margin: 0; font-size: 15px; font-weight: 700; color: var(--text); letter-spacing: .3px; }
.hs-meta { font-size: 12px; color: var(--text-soft); margin-left: auto; }
.btn {
  border: none; border-radius: var(--radius-sm); padding: 9px 16px;
  font-size: 13px; cursor: pointer; font-weight: 500;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #245ad6; }
.btn-ghost { background: var(--primary-soft); color: var(--primary); }
.btn-ghost:hover { background: #d8e6ff; }
.btn-outline { background: #fff; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: #fdecec; color: var(--danger); }
.btn-danger:hover { background: #fbd9d9; }
.btn-sm { padding: 6px 11px; font-size: 12px; }
.ml { margin-left: auto; }

/* ===== 内联 SVG 图标（统一替换 emoji） ===== */
.ico { display: inline-block; vertical-align: middle; flex: none; line-height: 0; }
.nav-icon .ico, .bn-icon .ico { width: 20px; height: 20px; }
.menu-btn .ico { width: 22px; height: 22px; }
.sync-btn .ico { width: 16px; height: 16px; }
.cloud-badge .ico { width: 15px; height: 15px; }
.login-logo .ico { width: 40px; height: 40px; color: var(--primary); }
.tree-icon .ico { width: 18px; height: 18px; }
.tree-actions .ico { width: 14px; height: 14px; }
.stat-icon .ico { width: 22px; height: 22px; color: var(--primary); }
.btn .ico { width: 16px; height: 16px; }
.empty .empty-icon .ico { width: 42px; height: 42px; opacity: .4; color: var(--c-ink-soft); }
.import-choice .ico { width: 26px; height: 26px; color: var(--c-blue); }

/* 首页统计 */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 16px; }
.stat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow);
  cursor: pointer; transition: transform .12s;
}
.stat:hover { transform: translateY(-3px); }
.stat-icon { font-size: 22px; }
.stat-row { display: flex; align-items: center; justify-content: space-between; }
.stat-enter { font-size: 12px; color: var(--primary, #2f6df6); opacity: 0; transition: opacity .15s; }
.stat:hover .stat-enter { opacity: 1; }
.stat-num { font-size: 28px; font-weight: 700; margin: 8px 0 2px; }
.stat-num .stat-unit { font-size: 14px; font-weight: 500; color: var(--text-soft); margin-left: 3px; }
.stat-label { color: var(--text-soft); font-size: 13px; }
.stat-bar { height: 4px; border-radius: 4px; background: var(--primary-soft); margin-top: 12px; overflow: hidden; }
.stat-bar > i { display: block; height: 100%; background: var(--primary); }

/* 表格 */
.toolbar { display: flex; gap: 10px; margin-bottom: 14px; align-items: center; }
.search-input {
  border: 1px solid var(--border); border-radius: 9px;
  padding: 8px 12px; font-size: 13px; min-width: 220px; outline: none;
}
.search-input:focus { border-color: var(--primary); }
.select {
  border: 1px solid var(--border); border-radius: 9px;
  padding: 8px 10px; font-size: 13px; outline: none; background: #fff; color: var(--text);
}
.select:focus { border-color: var(--primary); }
.table-wrap { overflow-x: auto; border-radius: var(--radius); }
.table-foot { display: flex; align-items: center; justify-content: center; gap: 14px; padding: 14px 0 4px; }
.table-count { color: var(--text-soft); font-size: 12.5px; }
/* 方案F：关键列固定宽度，只有事由弹性换行 */
table { width: 100%; border-collapse: collapse; background: var(--surface); table-layout: auto; }
th, td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; overflow: hidden; text-overflow: ellipsis; vertical-align: middle; }
th { background: #f8fafc; color: var(--text-soft); font-weight: 600; white-space: nowrap; text-align: center; position: relative; }
tbody tr:hover { background: #f9fbff; }
.col-check { width: 40px; text-align: center; }
.col-check input { width: 16px; height: 16px; cursor: pointer; }

/* ---------- 视图切换（列表 ↔ 图片） ---------- */
.view-toggle { display: inline-flex; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--surface); }
.vt-btn { border: none; background: transparent; color: var(--text-soft); padding: 8px 13px; cursor: pointer; font-size: 13.5px; display: inline-flex; align-items: center; gap: 6px; transition: .15s; }
.vt-btn:hover { color: var(--text); }
.vt-btn.active { background: var(--primary); color: #fff; }
.grid-view { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.gv-card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; transition: .18s; }
.gv-card:hover { transform: translateY(-3px); border-color: var(--primary); box-shadow: 0 8px 26px rgba(47,109,246,.16); }
.gv-media { position: relative; height: 150px; background: var(--bg-soft); display: flex; align-items: center; justify-content: center; overflow: hidden; cursor: pointer; }
.gv-media:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }
.gv-thumb { width: 100%; height: 100%; }
.gv-thumb img, .gv-thumb video { width: 100%; height: 100%; object-fit: cover; display: block; }
.gv-ph { display: flex; flex-direction: column; align-items: center; gap: 6px; color: var(--text-soft); font-size: 13px; }
.gv-ph-ico { display: inline-flex; color: var(--text-soft); }
.gv-ph-ico .ico { width: 26px; height: 26px; }
.gv-play { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 46px; height: 46px; border-radius: 50%; background: rgba(11,16,32,.62); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px; padding-left: 3px; pointer-events: none; }
.gv-count { position: absolute; right: 8px; bottom: 8px; background: rgba(11,16,32,.7); color: #fff; font-size: 11px; padding: 2px 7px; border-radius: 8px; pointer-events: none; }
.gv-body { padding: 12px 13px; display: flex; flex-direction: column; gap: 7px; flex: 1; }
.gv-title { font-weight: 600; font-size: 14.5px; line-height: 1.4; cursor: pointer; }
.gv-title:hover { color: var(--primary); }
.gv-title:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
.gv-meta { color: var(--text-soft); font-size: 12.5px; line-height: 1.55; }
.gv-meta b { color: var(--text); font-weight: 500; }
.gv-foot { display: flex; gap: 6px; margin-top: 2px; }
.gv-foot .btn { padding: 5px 10px; font-size: 12.5px; }
@media (max-width: 560px) { .grid-view { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; } .gv-media { height: 120px; } }
.col-seq { width: 56px; text-align: center; }
.col-date { width: 96px; text-align: center; white-space: nowrap; }
.col-file { width: 64px; text-align: center; }
/* 默认文字列：单行省略 */
.col-text { width: auto; min-width: 80px; text-align: left; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
/* 关键列固定宽度 */
.col-key-no { width: 120px; text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.col-key-receiver { width: 220px; text-align: left; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.col-key-status { width: 80px; text-align: center; white-space: nowrap; }
/* 事由列：弹性宽度，自动换行 */
.col-key-subject { width: auto; min-width: 120px; text-align: left; white-space: normal; word-break: break-all; line-height: 1.55; }
.col-actions { width: auto; min-width: max-content; text-align: center; white-space: nowrap; }
td.col-actions .row-actions { justify-content: center; }

/* 表头拖拽调整列宽 */
.col-resizer {
  position: absolute; right: 0; top: 0; bottom: 0; width: 6px;
  cursor: col-resize; z-index: 2; background: rgba(0,0,0,0.06);
  transition: background .15s;
}
.col-resizer:hover { background: rgba(0,0,0,0.18); }
body.resizing, body.resizing * { user-select: none !important; cursor: col-resize !important; }
body.resizing .col-resizer { background: rgba(0,0,0,0.18); }
.tag { padding: 3px 9px; border-radius: var(--radius-pill); font-size: 12px; white-space: nowrap; font-weight: 500; }
.tag-blue { background: var(--primary-soft); color: var(--primary-ink); }
.tag-green { background: #e7f7ee; color: var(--success-ink); }
.tag-amber { background: #fef3e2; color: var(--warn-ink); }
.tag-red { background: #fdecec; color: var(--danger-ink); }
.row-actions { display: flex; gap: 6px; flex-wrap: nowrap; }
.row-actions .btn { white-space: nowrap; }
.empty {
  text-align: center; color: var(--text-soft); padding: 48px 0;
}
.empty .empty-icon { font-size: 40px; opacity: .4; }

/* 表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; color: var(--text-soft); }
.field label .req { color: var(--danger); }
.field input, .field select, .field textarea {
  border: 1px solid var(--border); border-radius: 9px;
  padding: 9px 11px; font-size: 13px; outline: none; font-family: inherit;
  background: #fff;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--primary); }
.field textarea { resize: vertical; min-height: 70px; }
.img-preview { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
.img-preview img { width: 90px; height: 90px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); }

.file-dropzone {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  background: #f7f9ff;
  padding: 18px 14px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease;
}
.file-dropzone.dragover { border-color: var(--primary); background: #eaf1ff; }
.file-dropzone .dz-hint { color: var(--text-soft); font-size: 13px; pointer-events: none; }
.file-dropzone .file-input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.batch-list { max-height: 280px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; padding: 6px; background: #fff; }
.batch-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 6px; font-size: 13px;
}
.batch-item:nth-child(odd) { background: #f7f9ff; }
.batch-item.dup { background: #fff0f0; }
.batch-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-align: left; }
.batch-size { color: var(--text-soft); white-space: nowrap; }
.batch-dup { color: var(--danger); font-size: 12px; white-space: nowrap; }
.batch-remove {
  border: none; background: transparent; cursor: pointer;
  color: var(--text-soft); font-size: 13px; padding: 0 4px;
}
.batch-remove:hover { color: var(--danger); }
.file-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.file-item {
  display: inline-flex; align-items: center; gap: 8px;
  background: #eef2fb; border: 1px solid var(--border); border-radius: 8px;
  padding: 5px 10px; font-size: 13px; max-width: 100%;
}
.file-item .file-del, .file-item .file-dl, .file-item .file-view, .file-item .file-add {
  border: none; background: transparent; cursor: pointer;
  color: var(--text-soft); font-size: 12px; padding: 0 2px;
}
.file-item .file-del:hover { color: var(--danger); }
.file-item .file-dl:hover, .file-item .file-view:hover { color: var(--primary); }
.file-item .file-add {
  color: var(--primary); font-weight: 500; border-left: 1px solid var(--border);
  padding-left: 8px; margin-left: 2px;
}
.file-missing {
  color: #fff; background: var(--danger-ink); border-radius: 6px;
  font-size: 11px; padding: 1px 6px; font-weight: 600; white-space: nowrap;
}
.file-disk {
  color: #fff; background: var(--success-ink); border-radius: 6px;
  font-size: 11px; padding: 1px 6px; font-weight: 600; white-space: nowrap;
}
.mm-list { list-style: none; margin: 0; padding: 0; max-height: 52vh; overflow: auto; border: 1px solid var(--border); border-radius: 10px; }
.mm-list li { display: flex; gap: 10px; padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: 13px; align-items: baseline; }
.mm-list li:last-child { border-bottom: none; }
.mm-rec { color: var(--text-soft); min-width: 110px; flex-shrink: 0; }
.mm-file { color: var(--text); word-break: break-all; }

/* ---------- A 方案：快速导入拖入条 / 全页覆盖层 / 选择卡 ---------- */
.quick-drop {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; margin: 0 0 14px;
  border: 1.5px dashed var(--primary); border-radius: 12px;
  background: rgba(59, 130, 246, 0.05); color: var(--text);
  font-size: 13px; cursor: pointer; transition: background .15s, border-color .15s;
}
.quick-drop:hover { background: rgba(59, 130, 246, 0.1); }
.quick-drop.dragover { background: rgba(59, 130, 246, 0.18); border-color: var(--primary); }
.drop-overlay {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.55);
  display: none; align-items: center; justify-content: center; z-index: 60;
}
.drop-overlay.show { display: flex; }
.drop-overlay-inner {
  padding: 40px 60px; border: 3px dashed #fff; border-radius: 18px;
  color: #fff; font-size: 20px; font-weight: 600; letter-spacing: 1px;
}
.import-choice {
  display: flex; align-items: center; gap: 14px; padding: 16px;
  border: 1px solid var(--border); border-radius: 12px; background: #fff;
  cursor: pointer; text-align: left; width: 100%; transition: border-color .15s, background .15s;
}
.import-choice:hover { border-color: var(--primary); background: #f8fbff; }
.file-item .file-add:hover { text-decoration: underline; }
.link-attach { border: 1px dashed var(--border); border-radius: 10px; padding: 10px 12px; background: #fafbff; }

/* 设置 */
.setting-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; border-bottom: 1px solid var(--border); gap: 20px;
}
.setting-row:last-child { border-bottom: none; }
.setting-info h4 { margin: 0 0 4px; font-size: 14px; }
.setting-info p { margin: 0; color: var(--text-soft); font-size: 12px; max-width: 520px; }
.switch { position: relative; width: 46px; height: 26px; flex-shrink: 0; }
.switch input { display: none; }
.switch .slider {
  position: absolute; inset: 0; background: #cdd5e3; border-radius: 20px; transition: .2s; cursor: pointer;
}
.switch .slider::before {
  content: ""; position: absolute; width: 20px; height: 20px; left: 3px; top: 3px;
  background: #fff; border-radius: 50%; transition: .2s; box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
.switch input:checked + .slider { background: var(--primary); }
.switch input:checked + .slider::before { transform: translateX(20px); }
.path-box { display: flex; gap: 10px; align-items: center; flex: 1; max-width: 520px; }
.path-box input { flex: 1; }

/* 弹窗 */
.modal-mask {
  position: fixed; inset: 0; background: rgba(20,28,46,.45);
  display: none; align-items: center; justify-content: center; z-index: 100;
}
.modal-mask.show { display: flex; }
.modal.wide { width: min(1000px, 94vw); }
.jit-host { width: 100%; height: 72vh; background: #f5f6fa; border-radius: 8px; overflow: hidden; }
.jit-loading { display: flex; align-items: center; justify-content: center; height: 100%; color: var(--text-soft); font-size: 14px; }
.native-preview-wrap { width: 100%; }
.native-preview-wrap embed, .native-preview-wrap iframe { display: block; background: #fff; }

/* ---------- 媒体库样式已移除（v95 改为列表视图切换） ---------- */

.modal {
  background: #fff; width: min(680px, 92vw); max-height: 90vh;
  border-radius: var(--radius-lg); display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 16px; font-weight: 600; }
.modal-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text-soft); }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* Gitee 配置二维码 / 扫码 */
.qr-wrap { text-align: center; padding: 8px 0 4px; }
.qr-wrap img { width: 220px; height: 220px; border-radius: var(--radius-sm); }
.qr-warn { color: var(--warn-ink); background: rgba(217,119,6,.12); border-radius: var(--radius-sm); padding: 8px 10px; font-size: 12.5px; margin: 12px 0; line-height: 1.5; }
.qr-hint { color: var(--text-soft); font-size: 12.5px; line-height: 1.6; margin-top: 8px; }
.paste-area { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.scan-video { width: 100%; border-radius: var(--radius-sm); background: #000; display: none; max-height: 46vh; }

/* toast */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: #1f2733; color: #fff; padding: 11px 20px; border-radius: 10px;
  font-size: 13px; opacity: 0; pointer-events: none; transition: .25s; z-index: 200;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: #e5484d; }
.toast.success { background: #16a34a; }
.spin { display:inline-block; width:12px; height:12px; margin-right:6px; border:2px solid rgba(255,255,255,.45); border-top-color:#fff; border-radius:50%; animation:spin .7s linear infinite; vertical-align:-1px; }
@keyframes spin { to { transform:rotate(360deg); } }
.btn.loading { cursor:default; opacity:.85; }

/* 抽屉式移动 */
.bottom-nav { display: none; }
.drawer-overlay {
  position: fixed; inset: 0; background: rgba(20,28,46,.45);
  z-index: 45; opacity: 0; pointer-events: none; transition: opacity .2s;
}
.drawer-overlay.show { opacity: 1; pointer-events: auto; }

@media (max-width: 860px) {
  .menu-btn { display: block; }
  .sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; z-index: 50;
    transform: translateX(-100%); box-shadow: 0 0 40px rgba(0,0,0,.3);
  }
  .sidebar.mobile-open { transform: translateX(0); }
  /* 移动端：抽屉仅作「资料柜」树浏览，顶部导航交由底部 Tab，避免重复 */
  .sidebar { width: 82%; max-width: 320px; }
  .sidebar .nav > .nav-item:not(.nav-parent) { display: none; }
  .sidebar .nav .nav-parent { display: none; }
  .sidebar .nav-group { display: block; }
  .sidebar .nav-children { display: block !important; max-height: none !important; padding-left: 6px; }
  .sidebar-toggle { display: none; }
  .content { padding: 16px; padding-bottom: 84px; }
  .form-grid { grid-template-columns: 1fr; }

  /* 底部导航 */
  .bottom-nav {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    background: var(--surface); border-top: 1px solid var(--border);
    padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
    box-shadow: 0 -4px 16px rgba(0,0,0,.06);
  }
  .bn-item {
    flex: 1; border: none; background: transparent; cursor: pointer;
    display: flex; flex-direction: column; align-items: center; gap: 3px;
    padding: 6px 0; color: var(--text-soft); font-size: 11px;
  }
  .bn-item .bn-icon { font-size: 20px; line-height: 1; }
  .bn-item.active { color: var(--primary); }
  .bn-item.active .bn-icon { transform: translateY(-1px); }

  /* 移动端操作按钮更大、更好点 */
  .btn { padding: 11px 16px; }
  .btn-sm { padding: 9px 12px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-grid { grid-template-columns: repeat(3, 1fr); }
  .page-head { flex-wrap: wrap; }
  .toolbar { flex-wrap: wrap; }
  .search-input { min-width: 0; flex: 1; }
  .topbar { height: 52px; padding: 0 14px; }
  .modal { width: 94vw; }
  .module-row { flex-wrap: wrap; }
  .module-row .module-name { min-width: 120px; }
  .field-row { grid-template-columns: 1fr !important; gap: 8px !important; }
  .field-row .fe-options { visibility: visible !important; }
  .tree-actions { opacity: 1; }
  .tree-row { padding: 12px 10px; }
  .tree-children { padding-left: 14px; }

  /* 移动端：固定列宽在小屏太挤，恢复自动布局 */
  table { table-layout: auto; }
  .col-seq, .col-date, .col-file, .col-actions, .col-check { width: auto; }
  .col-text { white-space: normal; }
}

/* ---------- AI 助手 ---------- */
/* AI 助手：快捷场景 + 自由对话 */
.ai-layout { display: grid; grid-template-columns: 280px 1fr; gap: 18px; align-items: start; }
.ai-side { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 16px; position: sticky; top: 14px; }
.ai-side-title { font-size: 13px; font-weight: 600; color: var(--text-soft); margin-bottom: 12px; letter-spacing: .04em; }
.ai-scenes { display: flex; flex-direction: column; gap: 9px; }
.ai-scene {
  display: flex; align-items: center; gap: 11px; text-align: left; width: 100%;
  padding: 11px 12px; border: 1px solid var(--border); border-radius: 11px;
  background: var(--bg); color: var(--text); cursor: pointer; font: inherit;
  transition: border-color .15s, background .15s, transform .05s;
}
.ai-scene:hover { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 8%, var(--bg)); }
.ai-scene:active { transform: scale(.99); }
.ai-scene-ic { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: color-mix(in srgb, var(--primary) 15%, transparent); color: var(--primary); flex: 0 0 auto; }
.ai-scene-tx { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.ai-scene-tx b { font-size: 13.5px; font-weight: 600; }
.ai-scene-tx small { font-size: 11px; color: var(--text-soft); }
.ai-scene-custom { border-style: dashed; }
.ai-scene-del { margin-left: auto; color: var(--text-soft); display: inline-flex; padding: 4px; border-radius: 6px; flex: 0 0 auto; }
.ai-scene-del:hover { color: var(--danger); background: color-mix(in srgb, var(--danger) 14%, transparent); }
.ai-side-tip { margin-top: 14px; font-size: 11.5px; color: var(--text-soft); line-height: 1.6; }

.ai-chat { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; display: flex; flex-direction: column; height: calc(100vh - 180px); min-height: 440px; overflow: hidden; }
.ai-msgs { flex: 1; overflow-y: auto; padding: 18px; display: flex; flex-direction: column; gap: 14px; }
.ai-msg { display: flex; flex-direction: column; max-width: 88%; }
.ai-msg-user { align-self: flex-end; align-items: flex-end; }
.ai-msg-bot, .ai-msg-sys { align-self: flex-start; }
.ai-msg-sys { max-width: 100%; }
.ai-bubble { padding: 11px 14px; border-radius: 13px; font-size: 13.5px; line-height: 1.7; white-space: pre-wrap; word-break: break-word; }
.ai-msg-user .ai-bubble { background: var(--primary); color: #fff; border-bottom-right-radius: 4px; }
.ai-msg-bot .ai-bubble { background: var(--bg); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.ai-msg-sys .ai-bubble { background: transparent; color: var(--text-soft); font-size: 12.5px; border: 1px dashed var(--border); }
.ai-bubble svg { vertical-align: -3px; margin-right: 4px; color: var(--primary); }
.ai-msg-actions { display: flex; gap: 8px; margin-top: 6px; padding-left: 2px; }
.ai-input { border-top: 1px solid var(--border); padding: 12px 14px; display: flex; gap: 10px; align-items: flex-end; background: var(--surface); }
.ai-input textarea { flex: 1; resize: none; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; font: inherit; font-size: 13.5px; color: var(--text); background: var(--bg); max-height: 140px; }
.ai-input textarea:focus { outline: none; border-color: var(--primary); }
.btn-xs { padding: 4px 9px; font-size: 12px; border-radius: 8px; }
.form-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-soft); }
.form-grid input, .form-grid select, .form-grid textarea {
  padding: 9px 11px; border: 1px solid var(--border); border-radius: 9px;
  font-family: inherit; font-size: 13.5px; color: var(--text); background: var(--bg); box-sizing: border-box;
}
.form-grid textarea { resize: vertical; }
.form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus { outline: none; border-color: var(--primary); }
@media (max-width: 860px) {
  .ai-layout { grid-template-columns: 1fr; }
  .ai-side { position: static; }
  .ai-chat { height: calc(100vh - 260px); }
}

/* ---------- 登录锁屏 ---------- */
.login-mask {
  position: fixed; inset: 0; z-index: 9999;
  display: none;
  align-items: center; justify-content: center;
  background: linear-gradient(135deg, #243b6b 0%, #2f6df6 100%);
  padding: 20px;
}
.login-mask.show { display: flex; }
.login-card {
  width: 340px; max-width: 92vw;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 34px 28px 24px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
  text-align: center;
}
.login-logo { font-size: 42px; line-height: 1; }
.login-title { margin: 12px 0 4px; font-size: 22px; color: var(--text); }
.login-sub { margin: 0 0 22px; color: var(--text-soft); font-size: 13px; }
.login-form { display: flex; flex-direction: column; gap: 12px; }
.login-input {
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px;
  font-size: 15px; outline: none; background: #fff; color: var(--text);
}
.login-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.login-btn {
  padding: 12px; border: none; border-radius: 10px;
  background: var(--primary); color: #fff; font-size: 15px; cursor: pointer;
  transition: background .15s;
}
.login-btn:hover { background: #2257d6; }
.login-error { color: var(--danger); font-size: 13px; min-height: 18px; margin-top: 12px; }
.login-forgot {
  display: inline-block; margin-top: 14px; font-size: 12px; color: var(--text-soft);
  cursor: pointer; text-decoration: underline;
}
.login-forgot:hover { color: var(--text); }

/* ---------- 首页增强（KPI / 待办 / 动态 / 同步 / 快捷） ---------- */
.kpi-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; padding: 18px 20px; }
.kpi { text-align: center; }
.kpi-num { font-size: 28px; font-weight: 500; color: var(--text); line-height: 1.1; }
.kpi-label { font-size: 12px; color: var(--text-soft); margin-top: 6px; }

.home-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card-h { font-weight: 600; font-size: 14px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.badge-red { background: #fdeceb; color: var(--danger-ink); font-size: 11px; padding: 1px 9px; border-radius: var(--radius-pill); font-weight: 500; }

.todo-list { display: flex; flex-direction: column; gap: 2px; max-height: 320px; overflow: auto; }
.todo-item { display: flex; align-items: center; gap: 10px; padding: 9px 8px; border-radius: 9px; cursor: pointer; }
.todo-item:hover { background: var(--bg); }
.todo-dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; }
.dot-red { background: var(--danger); }
.dot-amber { background: var(--warn); }
.dot-blue { background: var(--primary); }
.dot-green { background: var(--success); }
.dot-gray { background: #b4b2a9; }
.todo-main { flex: 1; min-width: 0; }
.todo-title { font-size: 13.5px; font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.todo-sub { font-size: 12px; color: var(--text-soft); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.todo-date { font-size: 12px; color: var(--text-soft); width: 36px; flex: 0 0 auto; font-variant-numeric: tabular-nums; }
.empty-hint { color: var(--text-soft); font-size: 13px; padding: 18px 4px; text-align: center; }

.sync-line { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--text); }
.sync-sub { font-size: 12px; color: var(--text-soft); margin-top: 8px; }
.quick-act { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.qa { padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: #fff; color: var(--text); font-size: 13.5px; cursor: pointer; transition: background .15s, border-color .15s; }
.qa:hover { background: var(--primary-soft); border-color: var(--primary); }

.imp-list { max-height: 360px; overflow: auto; }
.imp-item { padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 8px; cursor: pointer; font-size: 14px; }
.imp-item:hover { background: var(--primary-soft); }

@media (max-width: 860px) {
  .home-2col { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 首页增强 v54：搜索 / 趋势 / 环形 / 接收单位 ===== */
/* 搜索框 */
.home-search { display:flex; gap:10px; margin:2px 0 16px; }
.home-search-input { flex:1; padding:11px 14px; border:1px solid var(--border); border-radius:10px; font-size:14px; background:var(--card,#fff); color:var(--text); }
.home-search-input:focus { outline:none; border-color:var(--primary,#2f6df6); box-shadow:0 0 0 3px rgba(47,109,246,.12); }

/* 趋势图 */
.chart-wrap { width:100%; padding:6px 2px 0; }
.chart-svg { width:100%; height:auto; display:block; }

/* 状态分布环形图 */
.donut-wrap { display:flex; align-items:center; gap:18px; flex-wrap:wrap; padding:6px 2px 0; }
.donut-svg { width:140px; height:140px; flex:0 0 140px; }
.donut-legend { display:flex; flex-direction:column; gap:8px; min-width:120px; }
.donut-legend-item { display:flex; align-items:center; gap:8px; font-size:13px; color:var(--text-soft); }
.donut-legend-item b { color:var(--text); margin-left:2px; }
.dl-dot { width:10px; height:10px; border-radius:50%; display:inline-block; }

/* 接收单位统计 */
.recv-list { display:flex; flex-direction:column; gap:10px; padding:6px 2px 0; }
.recv-item { display:flex; align-items:center; gap:10px; }
.recv-name { flex:0 0 130px; max-width:130px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:13px; color:var(--text); }
.recv-bar { flex:1; height:8px; background:var(--border,#eef1f5); border-radius:6px; overflow:hidden; }
.recv-bar i { display:block; height:100%; background:linear-gradient(90deg,#2f6df6,#5b8def); }
.recv-num { flex:0 0 auto; min-width:48px; text-align:right; font-size:13px; color:var(--text); font-weight:600; white-space:nowrap; }
.recv-rate { font-size:11px; color:var(--text-soft); font-weight:400; margin-left:3px; }
.recv-more { font-size:12px; color:var(--text-soft); padding-top:2px; }
.card-sub { font-size:12px; font-weight:400; color:var(--text-soft); margin-left:8px; }

/* 搜索结果 */
.search-list { display:flex; flex-direction:column; gap:8px; }
.search-item { padding:10px 12px; border:1px solid var(--border); border-radius:10px; cursor:pointer; transition:background .15s; }
.search-item:hover { background:rgba(47,109,246,.06); }
.si-title { font-size:14px; color:var(--text); font-weight:500; }
.si-sub { font-size:12px; color:var(--text-soft); margin-top:2px; }

@media (max-width: 860px) {
  .recv-name { flex-basis:90px; max-width:90px; }
  .donut-wrap { justify-content:center; }
}

/* ---------- 首页仪表盘网格（v76 重构） ---------- */
.dh-banner { display:flex; align-items:center; gap:16px; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:14px 18px; margin-bottom:16px; flex-wrap:wrap; }
.dh-info { flex:1 1 200px; min-width:0; }
.dh-title { font-weight:600; font-size:18px; display:flex; align-items:center; gap:8px; }
.dh-sub { font-size:13px; color:var(--text-soft); margin-top:2px; }
.dh-tools { display:flex; align-items:center; gap:12px; flex:2 1 320px; }
.dh-tools .home-search { margin:0; flex:1; min-width:0; }
.dh-grid { display:grid; grid-template-columns:2fr 1fr; gap:16px; align-items:start; }
.dh-col { display:flex; flex-direction:column; gap:16px; min-width:0; }
.dh-card { padding:16px 18px; margin:0; }
.kpi-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:12px; }
.kpi-grid .kpi-num { font-size:22px; }
.dh-insight-recv { margin-top:14px; }
@media (max-width: 860px) {
  .dh-grid { grid-template-columns:1fr; }
  .dh-tools { flex-direction:column; align-items:stretch; }
  .dh-tools .home-search { width:100%; }
}

/* ===================== 深色模式 · D 科技深空 ===================== */
/* 深色基调：深空底 + 卡片分层 + 主色辉光描边 + 状态点辉光。
   color-scheme:dark 让原生控件 / 滚动条自动进入暗色。 */
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1020;
  --bg-soft: #0f1526;
  --surface: #131a2e;
  --sidebar-bg: #0a0f1e;
  --sidebar-bg-2: #070b16;
  --sidebar-text: #aeb9d2;
  --sidebar-active: #4f8cff;
  --primary: #4f8cff;
  --primary-soft: rgba(79,140,255,.16);
  --text: #e6ebf5;
  --text-soft: #93a0b8;
  --muted: #93a0b8;
  --border: #1f2a44;
  --danger: #ff6b6f;
  --success: #36c47a;
  --warn: #f6b450;
  --shadow: 0 10px 30px rgba(0,0,0,.5);
  /* 深底深字（浅色语义色在深底下对比度不足，使用亮色调 ink） */
  --primary-ink: #9bc0ff;
  --danger-ink: #ff9a9d;
  --success-ink: #6fe0a3;
  --warn-ink: #f6c878;
  --c-blue: var(--primary);
  --c-red: #ff6b6f;
  --c-amber: #f6b450;
  --c-green: #36c47a;
  --c-track: #1f2a44;
  --c-ink: var(--text);
  --c-ink-soft: var(--text-soft);
  --c-disabled: #3a4356;
}

/* 侧边栏导航 / 树节点 active：半透明主色底 + 左条 + 辉光描边 */
[data-theme="dark"] .nav-item.active {
  background: rgba(79,140,255,.16);
  color: #fff;
  box-shadow: inset 3px 0 0 #4f8cff, 0 0 14px rgba(79,140,255,.25);
  border: 1px solid rgba(79,140,255,.45);
  border-right: none;
}
[data-theme="dark"] .tree-row.active {
  background: rgba(79,140,255,.16);
  color: #fff;
  box-shadow: inset 3px 0 0 #4f8cff;
  border: 1px solid rgba(79,140,255,.4);
  border-right: none;
}

/* 表面 / 输入统一深底 */
[data-theme="dark"] .modal,
[data-theme="dark"] .field input,
[data-theme="dark"] .field select,
[data-theme="dark"] .field textarea,
[data-theme="dark"] .select,
[data-theme="dark"] .login-input,
[data-theme="dark"] .home-search-input,
[data-theme="dark"] .batch-list,
[data-theme="dark"] .file-dropzone,
[data-theme="dark"] .link-attach,
[data-theme="dark"] .jit-host,
[data-theme="dark"] .cloud-badge,
[data-theme="dark"] .sync-btn,
[data-theme="dark"] .btn-outline,
[data-theme="dark"] .qa,
[data-theme="dark"] .import-choice,
[data-theme="dark"] .tree-label[contenteditable="true"] { background: var(--bg); color: var(--text); }

[data-theme="dark"] .file-item { background: #1b2436; border-color: var(--border); }
[data-theme="dark"] .switch .slider { background: #3a4356; }
[data-theme="dark"] .switch .slider::before { background: var(--surface); }
[data-theme="dark"] th { background: var(--bg); color: var(--text-soft); }
[data-theme="dark"] tbody tr:hover { background: rgba(79,140,255,.08); }
[data-theme="dark"] .batch-item:nth-child(odd) { background: rgba(255,255,255,.03); }
[data-theme="dark"] .import-choice:hover { background: rgba(79,140,255,.1); }
[data-theme="dark"] .code { background: var(--bg); }

[data-theme="dark"] .col-resizer { background: rgba(255,255,255,.12); }
[data-theme="dark"] .col-resizer:hover,
[data-theme="dark"] body.resizing .col-resizer { background: rgba(255,255,255,.28); }

/* 标签：半透明语义色 */
[data-theme="dark"] .tag-blue { background: rgba(79,140,255,.16); color: #9bc0ff; }
[data-theme="dark"] .tag-green { background: rgba(54,196,122,.16); color: #6fe0a3; }
[data-theme="dark"] .tag-amber { background: rgba(246,180,80,.16); color: #f6c878; }
[data-theme="dark"] .tag-red { background: rgba(255,107,111,.16); color: #ff9a9d; }
[data-theme="dark"] .btn-danger { background: rgba(255,107,111,.16); color: #ff9a9d; }
[data-theme="dark"] .btn-danger:hover { background: rgba(255,107,111,.26); }
[data-theme="dark"] .badge-red { background: rgba(255,107,111,.16); color: #ff9a9d; }
[data-theme="dark"] .file-missing { background: rgba(255,107,111,.16); color: #ff9a9d; }
[data-theme="dark"] .file-disk { background: rgba(54,196,122,.16); color: #6fe0a3; }

/* 按钮 / 卡片辉光 */
[data-theme="dark"] .btn-primary { box-shadow: 0 0 14px rgba(79,140,255,.35); }
[data-theme="dark"] .btn-primary:hover { box-shadow: 0 0 18px rgba(79,140,255,.5); }
[data-theme="dark"] .stat:hover { border-color: rgba(79,140,255,.5); box-shadow: 0 0 16px rgba(79,140,255,.18); }
[data-theme="dark"] .stat-bar { background: rgba(79,140,255,.2); }
[data-theme="dark"] .recv-bar { background: var(--border); }
[data-theme="dark"] .recv-bar i { background: linear-gradient(90deg,#4f8cff,#7aa6ff); }
[data-theme="dark"] .drop-overlay-inner { border-color: rgba(255,255,255,.7); }
[data-theme="dark"] .brand-logo { background: linear-gradient(135deg,#4f8cff,#7aa6ff); }

/* 状态点辉光 */
[data-theme="dark"] .todo-dot,
[data-theme="dark"] .cal-dot,
[data-theme="dark"] .dl-dot { box-shadow: 0 0 6px currentColor; }

/* ---------- 可访问性：键盘焦点态 ---------- */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
/* 可点击的非按钮元素也给出清晰焦点环 */
.imp-item:focus-visible,
.stat:focus-visible,
.todo-item:focus-visible,
.search-item:focus-visible,
.tree-row:focus-visible,
.file-item:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
/* 屏幕阅读器专用文本 */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------- 可访问性：尊重「减少动效」系统设置 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* 跳转主内容链接：默认隐藏，键盘聚焦时浮出 */
.skip-link {
  position: fixed; top: 10px; left: 10px; z-index: 999;
  transform: translateY(-150%);
  background: var(--primary); color: #fff;
  padding: 8px 14px; border-radius: 8px; font-size: 13px;
  text-decoration: none; transition: transform .15s ease;
}
.skip-link:focus { transform: translateY(0); outline: 2px solid #fff; outline-offset: 2px; }

/* ===================== 到期日历看板 ===================== */
.cal-toolbar {
  display: flex; align-items: center; gap: 12px;
  margin: 4px 0 16px; flex-wrap: wrap;
}
.cal-title { font-weight: 700; font-size: 16px; min-width: 120px; text-align: center; }
.cal-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px;
}
.cal-dow {
  text-align: center; font-size: 13px; color: var(--muted);
  font-weight: 600; padding-bottom: 4px;
}
.cal-cell {
  position: relative; min-height: 82px;
  border: 1px solid var(--border); border-radius: 10px;
  padding: 8px 8px 6px; background: var(--surface);
  display: flex; flex-direction: column; gap: 6px;
  cursor: default; transition: border-color .15s, background .15s;
}
.cal-cell.cal-other { opacity: .45; }
.cal-cell.cal-has { cursor: pointer; }
.cal-cell.cal-has:hover { border-color: var(--primary); background: var(--primary-soft); }
.cal-cell.cal-today { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-soft); }
.cal-cell:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.cal-day { font-size: 14px; font-weight: 600; color: var(--text); }
.cal-dots { display: flex; flex-wrap: wrap; gap: 4px; margin-top: auto; }
.cal-dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.cal-dot.dot-blue { background: var(--primary); }
.cal-dot.dot-amber { background: var(--warn); }
.cal-dot.dot-red { background: var(--danger); }
.cal-dot.dot-green { background: var(--success); }
.cal-empty { background: transparent; border: none; min-height: 0; padding: 0; }
.cal-empty-tip { color: var(--muted); font-size: 14px; padding: 6px 2px; }

[data-theme="dark"] .cal-cell { background: #1b2030; }
[data-theme="dark"] .cal-cell.cal-has:hover { background: #232a3d; }
[data-theme="dark"] .cal-dow { color: #9aa4b8; }