:root {
  /* 主色系 */
  --primary: #1E40AF;
  --primary-hover: #1A38A0;
  --primary-light: #EFF6FF;
  --primary-border: #BFDBFE;

  /* 背景 & 表面 */
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --border: #E2E8F0;
  --border-hover: #CBD5E1;

  /* 文字 */
  --text: #0F172A;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;

  /* 状态色 */
  --success: #16A34A;
  --success-bg: #F0FDF4;
  --success-border: #BBF7D0;

  --warning: #D97706;
  --warning-bg: #FFFBEB;
  --warning-border: #FDE68A;

  --error: #DC2626;
  --error-bg: #FEF2F2;
  --error-border: #FECACA;

  --info: #0369A1;
  --info-bg: #F0F9FF;
  --info-border: #BAE6FD;

  /* 圆角 & 阴影 */
  --radius: 8px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ─── 布局 ─── */
.layout { display: flex; min-height: 100vh; }

/* ─── 侧边栏 ─── */
.sidebar {
  width: 200px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}
.sidebar-title {
  height: 56px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 15px;
  color: var(--primary);
  border-bottom: 1px solid var(--border);
  margin-bottom: 6px;
  letter-spacing: 0.2px;
}
.nav-item {
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 9px;
  border-left: 3px solid transparent;
  transition: background 0.15s, color 0.15s;
  user-select: none;
  margin: 1px 6px 1px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.nav-item:hover:not(.active) {
  background: var(--bg);
  color: var(--text);
}
.nav-item.active {
  background: var(--primary-light);
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 500;
}
.nav-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  opacity: 0.6;
}
.nav-item.active .nav-icon,
.nav-item:hover .nav-icon { opacity: 1; }

/* ─── 主区域 ─── */
.main-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.topbar {
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.topbar h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}
.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #60A5FA);
}
.content { padding: 20px 24px; flex: 1; }

/* ─── 卡片 ─── */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  max-width: 960px;
  transition: box-shadow 0.2s;
}
.card:hover { box-shadow: var(--shadow-md); }
#view-ledger.card {
  max-width: 1400px;
  padding: 16px 20px 20px;
}
.card h2 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 600;
}
.card .hint {
  margin: 0 0 18px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ─── 上传区 ─── */
.upload-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 18px;
}
@media (max-width: 720px) {
  .upload-grid { grid-template-columns: 1fr; }
  .sidebar { display: none; }
}
.upload-box {
  position: relative;
  border: 1px dashed var(--border-hover);
  border-radius: var(--radius);
  padding: 14px 44px 14px 16px;
  background: var(--bg);
  transition: border-color 0.2s, background 0.2s;
}
.upload-box.has-file {
  border-color: var(--primary-border);
  background: var(--primary-light);
}
.upload-box label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text);
}
.upload-box input[type="file"] {
  width: 100%;
  font-size: 13px;
  color: var(--text-secondary);
}
.file-name {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-muted);
  word-break: break-all;
}
.upload-zone-count {
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--primary-border);
  pointer-events: none;
  user-select: none;
}

/* ─── 操作区 ─── */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

/* ─── 按钮 ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
  line-height: 1.4;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 1px 3px rgba(30, 64, 175, 0.25);
}
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-default {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}
.btn-default:hover:not(:disabled) {
  border-color: var(--primary-border);
  color: var(--primary);
  background: var(--primary-light);
}
.btn-default:disabled { opacity: 0.45; cursor: not-allowed; }
.small-btn { padding: 4px 10px; font-size: 12px; }

/* ─── Badge ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  border: 1px solid transparent;
}
.badge-gray {
  background: #F1F5F9;
  color: var(--text-secondary);
  border-color: var(--border);
}
.badge-green {
  background: var(--success-bg);
  color: var(--success);
  border-color: var(--success-border);
}
.badge-blue {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-border);
}
.badge-orange {
  background: var(--warning-bg);
  color: var(--warning);
  border-color: var(--warning-border);
}
.badge-red {
  background: var(--error-bg);
  color: var(--error);
  border-color: var(--error-border);
}

/* ─── 状态提示 ─── */
.status {
  margin-top: 14px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  display: none;
  border: 1px solid transparent;
}
.status.show { display: block; }
.status.error { background: var(--error-bg); border-color: var(--error-border); color: var(--error); }
.status.ok { background: var(--success-bg); border-color: var(--success-border); color: var(--success); }

/* ─── 视图切换 ─── */
.view { display: none; }
.view.active { display: block; }
.hidden { display: none !important; }

/* ─── 辅助账布局 ─── */
.ledger-page-stack { display: flex; flex-direction: column; gap: 12px; }
.ledger-layout {
  display: grid;
  grid-template-columns: minmax(300px, 1.12fr) minmax(260px, 0.88fr);
  gap: 10px;
  align-items: stretch;
}
.ledger-left { min-width: 0; }
.ledger-parse-section { display: flex; flex-direction: column; gap: 10px; }

.ledger-layout-parse-head { align-items: stretch; }
.ledger-layout-parse-head .ledger-left {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100%;
}
.ledger-layout-parse-head .ledger-row-parse-pair {
  flex: 1 1 auto;
  min-height: 0;
  height: 100%;
}
.ledger-layout-parse-head > .ledger-right.ledger-parse-result-panel {
  min-width: 0;
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.ledger-row-parse-pair { align-items: stretch; }
.ledger-panel-parse-fn { display: flex; flex-direction: column; min-height: 0; min-width: 0; }
.ledger-panel-parse-fn .ledger-pack-drop { flex: 1 1 auto; min-height: 72px; }
.ledger-panel-optimize-only { min-width: 0; display: flex; flex-direction: column; }
.ledger-panel-optimize-only.ledger-manual-align { padding: 10px; background: var(--bg); }
.ledger-panel-optimize-only .ledger-pack-optimize { margin-top: 0; flex: 1; display: flex; flex-direction: column; }
.ledger-panel-optimize-only .ledger-pack-optimize-toolbar { flex-direction: column; align-items: stretch; gap: 8px; }
.ledger-panel-optimize-only .ledger-pack-optimize-spacer { display: none; }
.ledger-panel-optimize-only .ledger-pack-opt-names { max-width: 100%; font-size: 11px; }
.ledger-panel-optimize-only .small-btn { width: 100%; justify-content: center; }
.ledger-parse-result-panel { display: flex; flex-direction: column; min-width: 0; }
.ledger-parse-result-panel .ledger-parse-stats { flex: 1 1 auto; min-height: 0; overflow: auto; }
.ledger-parse-result-panel .ledger-parse-unassigned { flex: 0 0 auto; max-height: 40%; overflow: auto; }
.ledger-parse-result-panel .ledger-parse-unassigned ul { max-height: min(160px, 28vh); }

/* ─── 文件包面板 ─── */
.ledger-pack-panel {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  background: var(--surface);
  min-width: 0;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}
.ledger-pack-panel:hover { box-shadow: var(--shadow-md); }
.ledger-pack-panel h3 { margin: 0 0 10px; font-size: 13px; font-weight: 600; }

.ledger-pack-drop {
  position: relative;
  border: 1px dashed var(--primary-border);
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  padding: 10px 44px 10px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  min-height: 64px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.ledger-pack-drop .ledger-pack-drop-hint { flex-shrink: 0; }
.ledger-pack-drop .ledger-file-rows { margin-top: 8px; max-height: 160px; width: 100%; }
.ledger-pack-drop:hover,
.ledger-pack-drop:focus-visible { border-color: var(--primary); background: #DBEAFE; outline: none; }
.ledger-pack-drop.dragover { border-color: var(--primary); background: #DBEAFE; }

.ledger-pack-optimize { margin-top: 8px; display: flex; flex-direction: column; align-items: stretch; }
.ledger-pack-optimize-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; width: 100%; }
.ledger-pack-optimize-spacer { flex: 1; min-width: 4px; }
.ledger-pack-opt-names { font-size: 12px; color: var(--text); max-width: min(100%, 320px); word-break: break-all; line-height: 1.35; }
.ledger-pack-optimize-hint { margin-top: 8px; font-size: 11px; color: var(--text-muted); line-height: 1.45; }
.ledger-pack-actions { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }

/* ─── 解析统计（结构化列表） ─── */
.ledger-parse-stats { font-size: 13px; color: var(--text); }

.stat-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.stat-row:last-child { border-bottom: none; }
.stat-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
  border: 1px solid transparent;
}
.stat-ok .stat-icon { background: var(--success-bg); color: var(--success); border-color: var(--success-border); }
.stat-warn .stat-icon { background: var(--warning-bg); color: var(--warning); border-color: var(--warning-border); }
.stat-error .stat-icon { background: var(--error-bg); color: var(--error); border-color: var(--error-border); }
.stat-label { flex: 1; color: var(--text-secondary); }
.stat-value { font-weight: 600; color: var(--text); white-space: nowrap; }
.stat-detail { font-size: 11px; color: var(--text-muted); white-space: nowrap; }

/* ─── 未分配列表 ─── */
.ledger-parse-unassigned { margin-top: 10px; font-size: 12px; color: var(--text-secondary); }
.ledger-parse-unassigned ul { margin: 6px 0 0; padding: 0 0 0 18px; color: var(--text); max-height: 160px; overflow: auto; }
.ledger-parse-unassigned li { margin: 2px 0; word-break: break-all; }

/* ─── 辅助账列表 ─── */
.ledger-rows { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.ledger-row {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(150px, 180px);
  gap: 8px;
  align-items: stretch;
}
.ledger-right {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 14px;
  min-height: 200px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}
.ledger-right:hover { box-shadow: var(--shadow-md); }
.ledger-right h3 { margin: 0 0 12px; font-size: 13px; font-weight: 600; }

.ledger-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  background: var(--surface);
  min-height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}
.ledger-item:hover { box-shadow: var(--shadow-md); }
.ledger-manual {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  background: var(--bg);
  min-height: 100%;
  display: flex;
  flex-direction: column;
}
.ledger-manual-head { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-bottom: 8px; }
.ledger-manual-label { font-size: 11px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.ledger-manual-name { font-size: 11px; color: var(--text); line-height: 1.45; word-break: break-all; flex: 1; min-height: 2.9em; }
.ledger-manual-name.empty { color: var(--text-muted); }
.ledger-manual .small-btn { width: 100%; justify-content: center; margin-top: auto; }

.ledger-title { font-size: 12px; font-weight: 600; margin-bottom: 8px; line-height: 1.45; color: var(--text); }
.ledger-short-title {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 20px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
  border: 1px solid var(--primary-border);
}
.ledger-head { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; margin-bottom: 8px; }

/* ─── 状态点 ─── */
.ledger-state-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.state-pending { background: #CBD5E1; }
.state-generated { background: var(--primary); box-shadow: 0 0 0 2px var(--primary-light); }
.state-manual { background: var(--success); box-shadow: 0 0 0 2px var(--success-bg); }

/* ─── 源文件拖放区 ─── */
.ledger-src-drop {
  position: relative;
  border: 1px dashed var(--border-hover);
  border-radius: var(--radius-sm);
  background: var(--bg);
  padding: 8px 40px 8px 10px;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  flex: 1;
  min-height: 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.ledger-src-drop:hover,
.ledger-src-drop:focus-visible { border-color: var(--primary-border); background: var(--primary-light); outline: none; }
.ledger-src-drop.dragover { border-color: var(--primary); background: var(--primary-light); }
.ledger-src-drop .hint-line { color: var(--text-muted); line-height: 1.4; }

/* ─── 文件列表 ─── */
.ledger-file-rows { margin: 6px 0 0; max-height: 120px; overflow: auto; font-size: 11px; }
.ledger-file-rows:empty { display: none; }
.ledger-file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 3px 0;
  border-bottom: 1px solid var(--border);
}
.ledger-file-row:last-child { border-bottom: none; }
.ledger-file-name { flex: 1; min-width: 0; word-break: break-all; line-height: 1.35; color: var(--text); }
.ledger-file-remove {
  flex-shrink: 0;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
}
.ledger-file-remove:hover { background: var(--error-bg); color: var(--error); }

.ledger-actions { margin-top: auto; padding-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }

/* ─── 分析区（结构化图标列表） ─── */
.analysis-box {
  margin-top: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 2px 12px;
}
.analysis-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  line-height: 1.5;
}
.analysis-item:last-child { border-bottom: none; }
.analysis-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
  border: 1px solid transparent;
}
.analysis-ok .analysis-icon { background: var(--success-bg); color: var(--success); border-color: var(--success-border); }
.analysis-warn .analysis-icon { background: var(--warning-bg); color: var(--warning); border-color: var(--warning-border); }
.analysis-error .analysis-icon { background: var(--error-bg); color: var(--error); border-color: var(--error-border); }
.analysis-info .analysis-icon { background: var(--info-bg); color: var(--info); border-color: var(--info-border); }
.analysis-text { flex: 1; color: var(--text-secondary); }

/* ─── 文件包解析页 ─── */
.parser-drop {
  position: relative;
  border: 1px dashed var(--primary-border);
  border-radius: var(--radius);
  background: var(--primary-light);
  padding: 16px 48px 16px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.parser-drop:hover { border-color: var(--primary); background: #DBEAFE; }
.parser-drop.dragover { border-color: var(--primary); background: #DBEAFE; }

.tree-wrap {
  margin-top: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  max-height: 420px;
  overflow: auto;
  background: var(--surface);
  font-size: 12px;
  line-height: 1.6;
  box-shadow: var(--shadow-sm);
}
.tree-wrap ul { margin: 4px 0 4px 16px; padding: 0; }
.tree-wrap li { margin: 2px 0; }
.parser-meta { margin-top: 8px; font-size: 12px; color: var(--text-muted); white-space: pre-line; }

/* ─── 隐藏原生 file input ─── */
.ledger-item input[type="file"].ledger-src-input,
.ledger-pack-panel input[type="file"].ledger-src-input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}