/* ==========================================================================
   Copyright (c) 2026 Baichuan AI Software. All rights reserved.
   百川软件简易研发管理系统 - 前端 Mock 阶段 app.css
   覆盖 Bootstrap 5 CSS 变量实现 DESIGN.md 令牌系统
   颜色 / 字号 / 圆角 / 间距 全部对齐 DESIGN.md
   ========================================================================== */

:root {
  /* Surface 阶梯 */
  --bc-canvas: #0b0c0d;
  --bc-surface-1: #141618;
  --bc-surface-2: #1a1d20;
  --bc-surface-3: #212529;
  --bc-surface-4: #2a2e33;
  --bc-hairline: #2e3338;
  --bc-hairline-strong: #3f464d;
  --bc-hairline-tertiary: #50585f;

  /* 主色 - 百川蓝 */
  --bc-primary: #3b82f6;
  --bc-on-primary: #ffffff;
  --bc-primary-hover: #2563eb;
  --bc-primary-focus: #1d4ed8;
  --bc-primary-subtle: #1e3a8a;

  /* 文本层级 */
  --bc-ink: #f1f5f9;
  --bc-ink-muted: #cbd5e1;
  --bc-ink-subtle: #94a3b8;
  --bc-ink-tertiary: #64748b;

  /* 语义色 */
  --bc-success: #22c55e;
  --bc-success-subtle: #14532d;
  --bc-warning: #f59e0b;
  --bc-warning-subtle: #78350f;
  --bc-danger: #ef4444;
  --bc-danger-subtle: #7f1d1d;
  --bc-info: #06b6d4;
  --bc-info-subtle: #164e63;
  --bc-secondary: #9ca3af;
  --bc-secondary-subtle: #374151;
  --bc-requirement: #a855f7;
  --bc-requirement-subtle: #581c87;

  /* 工作态高亮 */
  --bc-due-soon-border: #f59e0b;
  --bc-overdue-border: #ef4444;
  --bc-block-border: #ef4444;

  /* 圆角 */
  --bc-r-xs: 3px;
  --bc-r-sm: 4px;
  --bc-r-md: 6px;
  --bc-r-lg: 8px;
  --bc-r-xl: 12px;
  --bc-r-xxl: 16px;
  --bc-r-pill: 9999px;

  /* 字体栈 */
  --bc-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, sans-serif;
  --bc-font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

/* ============ Bootstrap 变量覆盖 ============ */
:root {
  --bs-body-bg: var(--bc-canvas);
  --bs-body-color: var(--bc-ink);
  --bs-body-font-family: var(--bc-font);
  --bs-body-font-size: 14px;
  --bs-body-font-weight: 400;
  --bs-body-line-height: 1.55;

  --bs-primary: var(--bc-primary);
  --bs-primary-rgb: 59, 130, 246;
  --bs-success: var(--bc-success);
  --bs-success-rgb: 34, 197, 94;
  --bs-info: var(--bc-info);
  --bs-info-rgb: 6, 182, 212;
  --bs-warning: var(--bc-warning);
  --bs-warning-rgb: 245, 158, 11;
  --bs-danger: var(--bc-danger);
  --bs-danger-rgb: 239, 68, 68;
  --bs-secondary: var(--bc-secondary);
  --bs-secondary-rgb: 156, 163, 175;

  --bs-border-color: var(--bc-hairline);
  --bs-border-color-translucent: var(--bc-hairline);

  --bs-link-color: var(--bc-primary);
  --bs-link-hover-color: var(--bc-primary-hover);

  --bs-emphasis-color: var(--bc-ink);
  --bs-secondary-color: var(--bc-ink-muted);
  --bs-secondary-bg: var(--bc-surface-2);
  --bs-tertiary-bg: var(--bc-surface-3);
  --bs-tertiary-color: var(--bc-ink-subtle);

  --bs-form-control-bg: var(--bc-surface-1);
  --bs-form-control-color: var(--bc-ink);
  --bs-form-control-border-color: var(--bc-hairline-strong);
  --bs-form-control-disabled-bg: var(--bc-surface-3);
  --bs-form-control-disabled-color: var(--bc-ink-tertiary);

  --bs-heading-color: var(--bc-ink);
  --bs-code-color: var(--bc-info);
}

/* ============ 全局基础 ============ */
* { box-sizing: border-box; }
html, body {
  background-color: var(--bc-canvas);
  color: var(--bc-ink);
  font-family: var(--bc-font);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--bc-primary); text-decoration: none; }
a:hover { color: var(--bc-primary-hover); text-decoration: underline; }

::selection { background: var(--bc-primary-subtle); color: var(--bc-ink); }

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bc-canvas); }
::-webkit-scrollbar-thumb { background: var(--bc-hairline-strong); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--bc-hairline-tertiary); }

/* ============ 排版辅助 ============ */
.text-ink { color: var(--bc-ink) !important; }
.text-ink-muted { color: var(--bc-ink-muted) !important; }
.text-ink-subtle { color: var(--bc-ink-subtle) !important; }
.text-ink-tertiary { color: var(--bc-ink-tertiary) !important; }

.bg-canvas { background-color: var(--bc-canvas) !important; }
.bg-surface-1 { background-color: var(--bc-surface-1) !important; }
.bg-surface-2 { background-color: var(--bc-surface-2) !important; }
.bg-surface-3 { background-color: var(--bc-surface-3) !important; }
.bg-surface-4 { background-color: var(--bc-surface-4) !important; }

.border-hairline { border-color: var(--bc-hairline) !important; }
.border-hairline-strong { border-color: var(--bc-hairline-strong) !important; }
.border-hairline-tertiary { border-color: var(--bc-hairline-tertiary) !important; }

.rounded-md { border-radius: var(--bc-r-md) !important; }
.rounded-lg { border-radius: var(--bc-r-lg) !important; }
.rounded-xl { border-radius: var(--bc-r-xl) !important; }
.rounded-xxl { border-radius: var(--bc-r-xxl) !important; }

/* 业务编号 monospace */
.business-code {
  font-family: var(--bc-font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.4px;
  color: var(--bc-ink-subtle);
}

/* eyebrow 标签 */
.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--bc-ink-subtle);
}

/* ============ 全局外壳 base.html ============ */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.top-nav {
  height: 56px;
  background: var(--bc-canvas);
  border-bottom: 1px solid var(--bc-hairline);
  display: flex;
  align-items: center;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 1030;
}
.top-nav .brand {
  font-size: 16px;
  font-weight: 700;
  color: var(--bc-ink);
  display: flex;
  align-items: center;
  gap: 8px;
}
.top-nav .brand .logo-mark {
  width: 24px; height: 24px;
  background: var(--bc-primary);
  border-radius: var(--bc-r-sm);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--bc-on-primary); font-weight: 700; font-size: 14px;
}
.top-nav .global-search {
  position: relative;
  flex: 0 0 auto;
  width: 232px;
}
.top-nav .global-search .input-group {
  flex-wrap: nowrap;
}
.top-nav .global-search .form-control {
  min-width: 0;
}
.top-nav .user-chip {
  display: flex; align-items: center; gap: 8px;
  cursor: pointer; padding: 4px 8px; border-radius: var(--bc-r-md);
}
.top-nav .user-chip:hover { background: var(--bc-surface-2); }

/* ============ 顶部全局搜索下拉 ============ */
.global-search-panel {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: min(420px, calc(100vw - 24px));
  max-height: min(70vh, 460px);
  overflow: auto;
  background: var(--bc-surface-1);
  border: 1px solid var(--bc-hairline-strong);
  border-radius: var(--bc-r-lg);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  z-index: 1045;
}
.global-search-panel[hidden] { display: none; }

.gs-head {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px 4px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.6px;
  color: var(--bc-ink-tertiary);
  text-transform: uppercase;
}
.gs-head .gs-ico { color: var(--bc-primary); font-size: 12px; }
.gs-head .gs-count { color: var(--bc-ink-tertiary); font-weight: 400; text-transform: none; }
.gs-head .gs-all { margin-left: auto; font-weight: 500; text-transform: none; letter-spacing: 0; }
.gs-head .gs-all:hover { text-decoration: none; }

.gs-row {
  display: flex; align-items: center; gap: 10px;
  width: 100%;
  padding: 7px 14px;
  border: 0; background: none; text-align: left; cursor: pointer;
  color: var(--bc-ink);
}
.gs-row:hover, .gs-row.active { background: var(--bc-surface-3); }
.gs-row .gs-ico { font-size: 15px; color: var(--bc-ink-muted); flex: 0 0 auto; }
.gs-body { min-width: 0; flex: 1 1 auto; }
.gs-title {
  display: block; font-size: 13px; font-weight: 500;
  color: var(--bc-ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.gs-row.active .gs-title { color: var(--bc-ink); }
.gs-meta {
  display: block; font-size: 11px; color: var(--bc-ink-tertiary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.gs-go { color: var(--bc-ink-tertiary); font-size: 13px; flex: 0 0 auto; }
.gs-row:hover .gs-go, .gs-row.active .gs-go { color: var(--bc-primary); }

.gs-empty, .gs-status {
  padding: 12px 14px; text-align: center;
  font-size: 13px; color: var(--bc-ink-tertiary);
}
.gs-empty a { text-decoration: none; }
.gs-divider { height: 1px; margin: 4px 0; background: var(--bc-hairline); }

.shell-body { display: flex; flex: 1; }

.left-sidenav {
  width: 232px;
  background: var(--bc-canvas);
  border-right: 1px solid var(--bc-hairline);
  color: var(--bc-ink-muted);
  padding: 12px 8px;
  flex-shrink: 0;
}
.left-sidenav .nav-section-title {
  font-size: 11px; font-weight: 600; letter-spacing: 0.8px;
  color: var(--bc-ink-tertiary); padding: 12px 12px 6px; text-transform: uppercase;
}
.left-sidenav .nav-item-link {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: var(--bc-r-md);
  color: var(--bc-ink-muted); text-decoration: none;
  font-size: 13px; font-weight: 500;
  border-left: 3px solid transparent;
}
.left-sidenav .nav-item-link:hover {
  background: var(--bc-surface-2); color: var(--bc-ink); text-decoration: none;
}
.left-sidenav .nav-item-link.active {
  background: var(--bc-surface-2); color: var(--bc-ink);
  border-left: 3px solid var(--bc-primary);
}
.left-sidenav .nav-icon { width: 16px; text-align: center; opacity: 0.85; }

.main-content {
  flex: 1; padding: 20px 24px;
  min-width: 0;
}
.breadcrumb-bar {
  height: 32px; display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--bc-ink-subtle);
}
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin: 16px 0 20px;
}
.page-header h1 {
  font-size: 26px; font-weight: 700; margin: 0; color: var(--bc-ink);
  letter-spacing: -0.2px;
}
.page-header .subtitle {
  font-size: 13px; color: var(--bc-ink-subtle); margin-top: 4px;
}
.app-footer {
  height: 40px; border-top: 1px solid var(--bc-hairline);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; font-size: 12px; color: var(--bc-ink-tertiary);
}

/* flash */
#flashWrap .alert {
  background: var(--bc-surface-2); border: 1px solid var(--bc-hairline-strong);
  color: var(--bc-ink); border-radius: var(--bc-r-md);
}
.alert-success-subtle { background: var(--bc-success-subtle) !important; border-color: var(--bc-success) !important; color: var(--bc-success) !important; }
.alert-danger-subtle { background: var(--bc-danger-subtle) !important; border-color: var(--bc-danger) !important; color: var(--bc-danger) !important; }
.alert-warning-subtle { background: var(--bc-warning-subtle) !important; border-color: var(--bc-warning) !important; color: var(--bc-warning) !important; }

/* ============ 卡片 ============ */
.card-surface {
  background: var(--bc-surface-1);
  border: 1px solid var(--bc-hairline);
  border-radius: var(--bc-r-xl);
  color: var(--bc-ink);
  padding: 20px;
}
.card-surface .card-title {
  font-size: 16px; font-weight: 600; margin-bottom: 12px; color: var(--bc-ink);
}
.card-hover:hover { background: var(--bc-surface-2); border-color: var(--bc-hairline-strong); }

.card-workbench-metric {
  background: var(--bc-surface-1); border: 1px solid var(--bc-hairline);
  border-radius: var(--bc-r-lg); padding: 14px 16px; color: var(--bc-ink);
  display: flex; flex-direction: column; gap: 6px;
}
.card-workbench-metric .metric-label {
  font-size: 12px; color: var(--bc-ink-subtle); font-weight: 500;
}
.card-workbench-metric .metric-value {
  font-size: 24px; font-weight: 700; color: var(--bc-ink); line-height: 1.2;
}
.card-workbench-metric .metric-sub {
  font-size: 12px; color: var(--bc-ink-tertiary);
}
.card-workbench-metric.tone-success .metric-value { color: var(--bc-success); }
.card-workbench-metric.tone-info .metric-value { color: var(--bc-info); }
.card-workbench-metric.tone-warning .metric-value { color: var(--bc-warning); }
.card-workbench-metric.tone-danger .metric-value { color: var(--bc-danger); }

/* 列表行卡片 */
.card-list-row {
  background: var(--bc-surface-1); border-radius: var(--bc-r-md);
  border: 1px solid var(--bc-hairline); border-left: 3px solid transparent;
  padding: 12px 16px; display: flex; align-items: center; gap: 12px;
  transition: background 0.1s;
}
.card-list-row:hover { background: var(--bc-surface-2); }
.card-list-row.row-overdue { border-left-color: var(--bc-overdue-border); border-left-width: 3px; }
.card-list-row.row-blocked { border-left-color: var(--bc-block-border); border-left-width: 4px; }
.card-list-row.row-due { border-left-color: var(--bc-due-soon-border); border-left-width: 3px; }

/* ============ 状态徽章 ============ */
.badge-status {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 10px; border-radius: var(--bc-r-pill);
  font-size: 12px; font-weight: 500; line-height: 1.4;
  border: 1px solid transparent; white-space: nowrap;
}
.badge-status .badge-icon { font-size: 11px; line-height: 1; }

.badge-success { background: var(--bc-success-subtle); color: var(--bc-success); border-color: var(--bc-success); }
.badge-info { background: var(--bc-info-subtle); color: var(--bc-info); border-color: var(--bc-info); }
.badge-secondary { background: var(--bc-secondary-subtle); color: var(--bc-ink-muted); border-color: var(--bc-hairline-strong); }
.badge-warning { background: var(--bc-warning-subtle); color: var(--bc-warning); border-color: var(--bc-warning); }
.badge-danger { background: var(--bc-danger-subtle); color: var(--bc-danger); border-color: var(--bc-danger); }
.badge-requirement { background: var(--bc-requirement-subtle); color: var(--bc-requirement); border-color: var(--bc-requirement); }
.badge-primary { background: var(--bc-primary-subtle); color: var(--bc-primary); border-color: var(--bc-primary); }

.badge-value-5 { background: #7c2d12; color: #fb923c; border-color: #fb923c; }
.badge-value-4 { background: #7c2d12; color: #fb923c; border-color: #fb923c; }
.badge-value-3 { background: var(--bc-primary-subtle); color: #60a5fa; border-color: #60a5fa; }
.badge-value-2 { background: var(--bc-secondary-subtle); color: var(--bc-ink-muted); border-color: var(--bc-hairline-strong); }
.badge-value-1 { background: #1f2937; color: #9ca3af; border-color: #6b7280; }

.badge-workload-ok { background: var(--bc-success-subtle); color: var(--bc-success); border-color: var(--bc-success); }
.badge-workload-warn { background: var(--bc-warning-subtle); color: var(--bc-warning); border-color: var(--bc-warning); }
.badge-workload-over { background: var(--bc-danger-subtle); color: var(--bc-danger); border-color: var(--bc-danger); }

/* ============ 表单 ============ */
.form-control, .form-select, .form-control:disabled, .form-control[readonly] {
  background-color: var(--bc-surface-1) !important;
  color: var(--bc-ink) !important;
  border-color: var(--bc-hairline-strong) !important;
  border-radius: var(--bc-r-md);
}
.form-control:focus, .form-select:focus {
  background-color: var(--bc-surface-1) !important;
  color: var(--bc-ink) !important;
  border-color: var(--bc-primary) !important;
  box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25) !important;
}
.form-control::placeholder { color: var(--bc-ink-subtle); }
.form-label {
  font-size: 13px; font-weight: 500; color: var(--bc-ink-muted);
  margin-bottom: 4px;
}
.input-group-text {
  background: var(--bc-surface-2); color: var(--bc-ink-muted);
  border-color: var(--bc-hairline-strong);
}
.form-text { color: var(--bc-ink-tertiary); font-size: 12px; }

/* ============ 按钮 ============ */
.btn { font-size: 13px; font-weight: 500; border-radius: var(--bc-r-md); padding: 6px 14px; }
.btn-primary { background: var(--bc-primary); border-color: var(--bc-primary); color: var(--bc-on-primary); }
.btn-primary:hover { background: var(--bc-primary-hover); border-color: var(--bc-primary-hover); }
.btn-primary:disabled { background: var(--bc-surface-3); border-color: var(--bc-surface-3); color: var(--bc-ink-tertiary); }
.btn-secondary { background: var(--bc-surface-2); border-color: var(--bc-hairline-strong); color: var(--bc-ink); }
.btn-secondary:hover { background: var(--bc-surface-3); color: var(--bc-ink); }
.btn-success { background: var(--bc-success); border-color: var(--bc-success); color: #fff; }
.btn-warning { background: var(--bc-warning); border-color: var(--bc-warning); color: #1a1a1a; }
.btn-danger { background: var(--bc-danger); border-color: var(--bc-danger); color: #fff; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--bc-ink); }
.btn-ghost:hover { background: var(--bc-surface-2); }
.btn-link { color: var(--bc-primary); }

/* ============ 表格 ============ */
.table { color: var(--bc-ink); margin-bottom: 0; }
.table > :not(caption) > * > * {
  background-color: var(--bc-surface-1);
  border-bottom-color: var(--bc-hairline);
  padding: 10px 12px;
  vertical-align: middle;
}
.table > thead > * > * {
  background-color: var(--bc-surface-2);
  color: var(--bc-ink-muted);
  font-size: 12px; font-weight: 500;
  border-bottom: 1px solid var(--bc-hairline-strong);
  text-transform: uppercase; letter-spacing: 0.4px;
}
.table-hover > tbody > tr:hover > * { background-color: var(--bc-surface-2) !important; }
.table > :not(thead) > *:first-child { border-top: 1px solid var(--bc-hairline); }

/* ============ 进度条 ============ */
.progress {
  background: var(--bc-surface-3); height: 6px; border-radius: var(--bc-r-pill);
}
.progress-bar { background: var(--bc-info); }
.progress-bar.bg-success { background: var(--bc-success) !important; }
.progress-bar.bg-warning { background: var(--bc-warning) !important; }
.progress-bar.bg-danger { background: var(--bc-danger) !important; }
.progress-bar.bg-info { background: var(--bc-info) !important; }
.progress-bar.bg-primary { background: var(--bc-primary) !important; }
.progress-label { font-size: 12px; color: var(--bc-ink-muted); font-weight: 500; }

/* ============ 模态 ============ */
.modal-content {
  background: var(--bc-surface-1);
  border: 1px solid var(--bc-hairline-strong);
  border-radius: var(--bc-r-xxl);
  color: var(--bc-ink);
}
.modal-header {
  background: var(--bc-surface-2);
  border-bottom: 1px solid var(--bc-hairline);
  padding: 14px 20px; border-top-left-radius: var(--bc-r-xxl); border-top-right-radius: var(--bc-r-xxl);
}
.modal-header .modal-title { font-size: 16px; font-weight: 600; color: var(--bc-ink); }
.modal-body { padding: 20px; }
.modal-footer {
  background: transparent; border-top: 1px solid var(--bc-hairline);
  padding: 14px 20px;
}
/* 模态内 <form> 若直接包住 .modal-body 与 .modal-footer（HTMX 注入弹窗的通用结构），
   需要让 form 自身成为纵向 flex 容器，.modal-body 才受高度约束并内部滚动，
   底部按钮（.modal-footer）固定在可视区，避免内容超高时按钮被裁掉/不可见。 */
#modalShellContent > form {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}
.modal-backdrop.show { opacity: 0.75; background: var(--bc-canvas); }

/* ============ 评论 ============ */
.comment-system {
  background: var(--bc-surface-2);
  border-left: 3px solid var(--bc-primary);
  padding: 10px 12px;
  border-radius: var(--bc-r-md);
  color: var(--bc-ink-muted);
  font-size: 13px;
}
.comment-mention {
  background: var(--bc-primary-subtle);
  color: var(--bc-primary);
  border-radius: var(--bc-r-pill);
  padding: 0 6px;
  font-weight: 500;
}
.comment-row { padding: 10px 0; border-bottom: 1px solid var(--bc-hairline); }

/* @提及 联想菜单 */
.comment-mention-menu {
  position: fixed;
  z-index: 2000;
  min-width: 220px;
  max-width: 320px;
  max-height: 264px;
  overflow-y: auto;
  background: var(--bc-surface-1);
  border: 1px solid var(--bc-hairline);
  border-radius: var(--bc-r-md);
  box-shadow: 0 8px 24px rgb(0 0 0 / 14%);
  padding: 4px;
  display: none;
}
.comment-mention-menu .m-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
.comment-mention-menu .m-item.active {
  background: var(--bc-primary-subtle);
  color: var(--bc-primary);
}
.comment-mention-menu .m-item .m-name { font-weight: 500; color: var(--bc-ink); }
.comment-mention-menu .m-item .m-py { font-size: 11px; color: var(--bc-ink-tertiary); }
.comment-mention-menu .m-empty {
  color: var(--bc-ink-tertiary);
  text-align: center;
  padding: 8px;
  font-size: 12px;
}
.comment-mention-menu .m-tip {
  border-top: 1px solid var(--bc-hairline);
  margin-top: 4px;
  padding: 4px 8px 2px;
  font-size: 11px;
  color: var(--bc-ink-tertiary);
}

/* 评论内嵌图片（Base64 data URI） */
.comment-img {
  max-width: 100%;
  max-height: 480px;
  margin-top: 8px;
  border-radius: 10px;
  display: block;
  cursor: zoom-in;
  border: 1px solid var(--bc-hairline);
}

/* 待发布图片预览 */
.comment-img-preview { position: relative; }
.comment-img-preview img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--bc-hairline);
  display: block;
  background: var(--bc-surface-3);
}
.comment-img-remove {
  position: absolute;
  top: -7px;
  right: -7px;
  width: 20px;
  height: 20px;
  padding: 0;
  border: none;
  border-radius: 50%;
  line-height: 1;
  color: var(--bc-on-primary, #fff);
  background: var(--bc-danger);
  font-size: 14px;
  cursor: pointer;
}

/* 评论图片查看大图遮罩 */
.comment-img-viewer {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(6, 8, 10, 0.9);
}
.comment-img-viewer.show { display: flex; }
.comment-img-viewer img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}
.comment-img-viewer-close {
  position: absolute;
  top: 14px;
  right: 20px;
  border: none;
  background: none;
  color: var(--bc-ink);
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
}

/* ============ 关联人员 chips ============ */
.member-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 3px 12px 3px 6px;
  border: 1px solid var(--bc-hairline);
  border-radius: var(--bc-r-pill);
  background: var(--bc-surface-2);
  color: var(--bc-ink-muted);
  font-size: 12px;
  cursor: pointer;
  user-select: none;
}
.member-chip-input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
}
.member-chip-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bc-secondary-subtle);
  color: var(--bc-ink);
  font-size: 11px;
}
.member-chip:has(.member-chip-input:checked) {
  border-color: var(--bc-primary);
  background: var(--bc-primary-subtle);
  color: var(--bc-ink);
}
.member-chip:has(.member-chip-input:checked) .member-chip-avatar {
  background: var(--bc-primary);
  color: #fff;
}
.member-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 12px 2px 4px;
  border: 1px solid var(--bc-hairline);
  border-radius: var(--bc-r-pill);
  background: var(--bc-surface-1);
  color: var(--bc-ink-muted);
  font-size: 12px;
}

/* ============ 日历 ============ */
.calendar-cell {
  background: var(--bc-surface-1); border: 1px solid var(--bc-hairline);
  border-radius: var(--bc-r-md); min-height: 72px; padding: 6px 8px;
  color: var(--bc-ink-muted);
}
.calendar-cell.cell-today { border-color: var(--bc-primary); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.5); }
.calendar-cell.cell-submitted { background: var(--bc-success-subtle); }
.calendar-cell.cell-missed { background: var(--bc-danger-subtle); }
.calendar-cell.cell-weekend { background: var(--bc-surface-3); color: var(--bc-ink-tertiary); }
.calendar-cell.cell-holiday { background: var(--bc-surface-3); color: var(--bc-ink-tertiary); }
.calendar-cell.cell-empty { background: transparent; border-color: transparent; }

/* ============ 头像 ============ */
.avatar {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bc-primary-subtle); color: var(--bc-primary);
  border-radius: 50%; font-weight: 600; flex-shrink: 0;
}
.avatar-24 { width: 24px; height: 24px; font-size: 11px; }
.avatar-32 { width: 32px; height: 32px; font-size: 13px; }
.avatar-40 { width: 40px; height: 40px; font-size: 15px; }
.avatar-80 { width: 80px; height: 80px; font-size: 28px; }
/* 自定义图片头像：圆形裁剪 */
.avatar-photo { overflow: hidden; }
.avatar-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.avatar-group { display: inline-flex; }
.avatar-group .avatar { margin-left: -8px; border: 2px solid var(--bc-surface-1); }
.avatar-group .avatar:first-child { margin-left: 0; }

/* ============ Tabs ============ */
.nav-tabs { border-bottom: 1px solid var(--bc-hairline); }
.nav-tabs .nav-link {
  color: var(--bc-ink-muted); border: 0; border-bottom: 2px solid transparent;
  border-radius: 0; padding: 8px 16px; font-size: 14px; font-weight: 500;
}
.nav-tabs .nav-link:hover { color: var(--bc-ink); border-bottom-color: var(--bc-hairline-strong); }
.nav-tabs .nav-link.active {
  color: var(--bc-primary); background: transparent;
  border-bottom-color: var(--bc-primary);
}

/* ============ 分页 ============ */
.pagination .page-link {
  background: var(--bc-surface-1); color: var(--bc-ink-muted);
  border-color: var(--bc-hairline);
}
.pagination .page-link:hover { background: var(--bc-surface-2); color: var(--bc-ink); }
.pagination .page-item.active .page-link {
  background: var(--bc-primary); border-color: var(--bc-primary); color: var(--bc-on-primary);
}
.pagination .page-item.disabled .page-link {
  background: var(--bc-surface-3); color: var(--bc-ink-tertiary);
}

/* ============ 工具类 ============ */
.cursor-pointer { cursor: pointer; }
.gap-4px { gap: 4px; }
.hover-surface:hover { background: var(--bc-surface-2); }
.list-group-item { background: var(--bc-surface-1); color: var(--bc-ink); border-color: var(--bc-hairline); }
.list-group-item-action:hover { background: var(--bc-surface-2); }
.dropdown-menu { background: var(--bc-surface-2); border-color: var(--bc-hairline-strong); }
.dropdown-item { color: var(--bc-ink-muted); }
.dropdown-item:hover, .dropdown-item:focus { background: var(--bc-surface-3); color: var(--bc-ink); }
.dropdown-divider { border-color: var(--bc-hairline); }
.hr-thin { border: 0; border-top: 1px solid var(--bc-hairline); margin: 16px 0; }
.text-truncate-2 {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 登录页 */
.auth-shell { min-height: 100vh; display: flex; }
.auth-brand {
  flex: 0 0 60%; background: var(--bc-canvas);
  display: flex; flex-direction: column; justify-content: center; padding: 40px 80px;
  border-right: 1px solid var(--bc-hairline);
}
.auth-form-side {
  flex: 0 0 40%; background: var(--bc-surface-1);
  display: flex; align-items: center; justify-content: center; padding: 40px;
}
.auth-card {
  width: 100%; max-width: 420px;
  background: var(--bc-surface-1); border: 1px solid var(--bc-hairline);
  border-radius: var(--bc-r-xxl); padding: 32px;
}
@media (max-width: 767.98px) {
  .auth-brand { display: none; }
  .auth-form-side { flex: 1; }
  .left-sidenav { display: none; }
}

/* 移动端抽屉按钮 */
.sidenav-toggle { display: none; }
@media (max-width: 991.98px) {
  .left-sidenav { position: fixed; left: -240px; top: 56px; bottom: 0; z-index: 1040; transition: left 0.2s; }
  .left-sidenav.show { left: 0; }
  .sidenav-toggle { display: inline-flex; }
}