/* =========================================================================
   建工学院组织部内部协同平台 - 样式表
   党政正式风格：深红主色 + 深灰辅色，卡片式布局
   ========================================================================= */

:root {
  /* ---- 色彩 ---- */
  --color-primary: #8B1A1A;        /* 深红 */
  --color-primary-dark: #6B0F0F;
  --color-primary-light: #B83232;
  --color-accent: #C9A063;         /* 党政金 */
  --color-secondary: #2C3E50;      /* 深灰蓝 */
  --color-bg: #F4F5F8;             /* 页面背景 */
  --color-card: #FFFFFF;           /* 卡片背景 */
  --color-border: #E4E7EC;
  --color-border-light: #F0F1F4;
  --color-text: #2C3E50;
  --color-text-light: #6B7785;
  --color-text-muted: #9AA4B0;
  --color-success: #27AE60;
  --color-warning: #E67E22;
  --color-danger: #C0392B;
  --color-info: #2980B9;

  /* ---- 间距系统（4pt 基准）---- */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-base: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* ---- 字号系统（1.25 比例）---- */
  --text-xs: 12px;
  --text-sm: 13px;
  --text-base: 15px;    /* 正文不低于 15px */
  --text-md: 16px;
  --text-lg: 18px;
  --text-xl: 20px;
  --text-2xl: 24px;
  --text-3xl: 30px;

  /* ---- 阴影层级 ---- */
  --shadow-sm: 0 1px 2px rgba(15,23,42,0.04), 0 1px 3px rgba(15,23,42,0.06);
  --shadow-md: 0 2px 8px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
  --shadow-lg: 0 4px 16px rgba(15,23,42,0.08), 0 2px 6px rgba(15,23,42,0.05);
  --shadow-xl: 0 8px 28px rgba(15,23,42,0.12), 0 4px 10px rgba(15,23,42,0.06);

  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1;
}

/* 数字等宽，表格/指标对齐更整齐 */
.nums, .data-table td, .metric-value, .data-table th {
  font-variant-numeric: tabular-nums;
}

/* ==================== 顶部导航栏 ==================== */
.topbar {
  background: linear-gradient(135deg, #A52A2A 0%, #C0392B 55%, #CB4747 100%);
  color: #fff;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 3px solid #C9A063; /* 金色底线，党政庄重感 */
}
/* 顶部装饰纹理（淡淡的回字纹） */
.topbar-pattern {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.04) 0 10px, transparent 10px 20px);
  pointer-events: none;
}
/* 校徽水印：居中偏左、上下铺满、100% 透明度 */
.topbar-watermark {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image: url('../images/logo.png');
  background-repeat: no-repeat;
  background-position: 40% center;  /* 居中偏左，避开右侧文字按钮 */
  background-size: auto 80%;    /* 高度80% */
  opacity: 1;
  pointer-events: none;
  z-index: 0;
}
/* 确保文字内容在水印之上 */
.topbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 68px;
  position: relative;
  z-index: 1;
}
.topbar-left { display: flex; align-items: center; gap: 14px; }
.topbar-emblem {
  width: 46px; height: 46px;
  background: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 0 2px rgba(201,160,99,0.6), 0 2px 6px rgba(0,0,0,0.2);
  overflow: hidden;
  flex-shrink: 0;
}
.emblem-img { width: 100%; height: 100%; object-fit: contain; }
/* 校徽未放置时的兜底：显示党徽风格 ★ */
.topbar-emblem.emblem-fallback {
  background: rgba(255,255,255,0.15);
  box-shadow: 0 0 0 2px rgba(201,160,99,0.6);
}
.topbar-emblem.emblem-fallback::after {
  content: "★";
  font-size: 24px;
  color: #C9A063;
}
.topbar-title h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 2px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
.topbar-title span {
  font-size: 12px;
  opacity: 0.85;
  letter-spacing: 1px;
  display: block;
  margin-top: 2px;
}

.topbar-right { display: flex; align-items: center; gap: 16px; }
.identity-bar { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.identity-label { opacity: 0.85; }
.member-select {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  outline: none;
}
.member-select option { color: #333; }
.admin-badge {
  display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.15);
  padding: 4px 8px 4px 12px;
  border-radius: 4px;
  font-size: 13px;
}

/* ==================== 按钮 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.18s, box-shadow 0.18s, transform 0.08s;
  white-space: nowrap;
  line-height: 1.4;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 1px 2px rgba(139,26,26,0.2);
}
.btn-primary:hover { background: var(--color-primary-dark); box-shadow: 0 2px 6px rgba(139,26,26,0.3); }
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.5);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.7); }
.btn-sm { padding: var(--space-xs) var(--space-md); font-size: var(--text-xs); }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover { background: #962D22; }
.btn-success { background: var(--color-success); color: #fff; }
.btn-success:hover { background: #1E8449; }
.btn-default {
  background: #fff;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-default:hover { background: var(--color-bg); border-color: var(--color-text-muted); }

/* 焦点可见性（无障碍） */
.btn:focus-visible,
.form-input:focus-visible,
.filter-select:focus-visible,
.filter-input:focus-visible {
  outline: 2px solid var(--color-info);
  outline-offset: 2px;
}

/* 普通视图下的按钮（深色文字） */
.section-toolbar .btn-outline {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.section-toolbar .btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

/* ==================== 导航标签栏 ==================== */
.navtabs {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.navtabs-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  padding: 0 24px;
  gap: 4px;
}
.navtab {
  padding: 14px 30px;
  border: none;
  background: transparent;
  font-size: 15px;
  font-family: inherit;
  color: var(--color-text-light);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
  position: relative;
}
.navtab:hover { color: var(--color-primary); background: #FAF5F5; }
.navtab.active {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom-color: #C9A063; /* 选中态金色下划线 */
}

/* ==================== 主内容区 ==================== */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}
.tab-section { display: none; }
.tab-section.active { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .tab-section.active { animation: none; }
}

/* ==================== 指标卡片 ==================== */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.metric-card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 22px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border-left: 4px solid var(--color-primary);
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}
.metric-card::before {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 80px; height: 80px;
  background: radial-gradient(circle at top right, rgba(139,26,26,0.06), transparent 70%);
  border-radius: 50%;
}
.metric-card:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(0,0,0,0.12); }
.metric-overdue { border-left-color: var(--color-danger); }
.metric-overdue::before { background: radial-gradient(circle at top right, rgba(192,57,43,0.08), transparent 70%); }
.metric-icon {
  font-size: 30px;
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #FAF5F5, #FDEAEA);
  border-radius: 12px;
  flex-shrink: 0;
}
.metric-overdue .metric-icon { background: linear-gradient(135deg, #FFF5F5, #F8D7DA); }
.metric-value { font-size: 30px; font-weight: 700; color: var(--color-secondary); line-height: 1.1; }
.metric-overdue .metric-value { color: var(--color-danger); }
.metric-label { font-size: 13px; color: var(--color-text-light); margin-top: 2px; }

/* ==================== 图表区 ==================== */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-base);
  margin-bottom: var(--space-lg);
}
.chart-card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}
.chart-wrap { height: 300px; position: relative; }

/* ==================== 人员一览卡片 ==================== */
.members-showcase {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.showcase-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}
.showcase-row-heads {
  justify-content: center;
  padding-bottom: var(--space-lg);
  border-bottom: 1px dashed var(--color-border);
}
.showcase-row-staff {
  justify-content: flex-start;
}
.showcase-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--color-bg-alt);
  border-radius: 12px;
  padding: 12px 20px 12px 12px;
  border: 1px solid var(--color-border-light);
  transition: all 0.2s ease;
}
.showcase-row-heads .showcase-card {
  background: linear-gradient(135deg, #fff 0%, #fef7f0 100%);
  border-color: var(--color-accent);
  padding: 16px 28px 16px 14px;
}
.showcase-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.10);
}
.showcase-photo {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 3px solid var(--color-card);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  background: var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: center;
}
.showcase-row-heads .showcase-photo {
  width: 64px;
  height: 64px;
  border-color: var(--color-accent);
  border-width: 3px;
}
.showcase-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.showcase-photo-placeholder {
  font-size: 24px;
  color: var(--color-text-light);
}
.showcase-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.showcase-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}
.showcase-row-heads .showcase-name {
  font-size: 19px;
}
.showcase-meta {
  font-size: 12px;
  font-weight: 300;
  color: var(--color-text-light);
  line-height: 1.4;
  letter-spacing: 0.3px;
}

/* ==================== 用户显示 ==================== */
.user-display {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  padding: 6px 14px;
  background: rgba(255,255,255,0.15);
  border-radius: 20px;
  white-space: nowrap;
}

/* ==================== 登录遮罩页 ==================== */
.auth-gate {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  padding: 20px;
}
.auth-gate-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, #6B0F0F 0%, #8B1A1A 40%, #A52A2A 100%);
}
.auth-gate-bg::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,215,0,0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.05) 0%, transparent 40%);
}
.auth-card {
  position: relative;
  z-index: 1;
  background: #fff;
  border-radius: 16px;
  padding: 40px 36px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: authCardIn 0.4s ease;
}
@keyframes authCardIn {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.auth-logo {
  text-align: center;
  margin-bottom: 16px;
}
.auth-logo img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 50%;
  border: 3px solid var(--color-accent);
}
.auth-title {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
  letter-spacing: 1px;
}
.auth-subtitle {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 28px;
}
.auth-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--color-border-light);
}
.auth-tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-light);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all 0.2s;
}
.auth-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}
.auth-tab:hover:not(.active) {
  color: var(--color-text);
}
.auth-panel {
  animation: authPanelIn 0.3s ease;
}
@keyframes authPanelIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.auth-submit {
  width: 100%;
  margin-top: 8px;
  padding: 12px;
  font-size: 15px;
}
.auth-divider {
  text-align: center;
  margin: 20px 0 12px;
  position: relative;
  color: var(--color-text-lighter);
  font-size: 12px;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 40%;
  height: 1px;
  background: var(--color-border-light);
}
.auth-divider::before { left: 0; }
.auth-divider::after { right: 0; }
.auth-admin-btn {
  width: 100%;
  padding: 10px;
  font-size: 14px;
}

/* ==================== 月度任务清单（时间线） ==================== */
.task-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.timeline-month {
  position: relative;
}
.timeline-month-header {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  padding: 6px 16px;
  background: linear-gradient(90deg, rgba(192,57,43,0.08) 0%, transparent 100%);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 6px 6px 0;
  margin-bottom: var(--space-base);
}
.timeline-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-left: 8px;
}
.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 14px;
  background: var(--color-bg-alt);
  border-radius: 8px;
  border: 1px solid var(--color-border-light);
  transition: all 0.2s ease;
}
.timeline-item:hover {
  background: var(--color-card);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.timeline-item.timeline-overdue {
  border-color: var(--color-danger);
  background: rgba(192,57,43,0.05);
}
.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-top: 4px;
  flex-shrink: 0;
  border: 2px solid var(--color-card);
  box-shadow: 0 0 0 1px var(--color-border);
}
.timeline-dot.timeline-done { background: #27AE60; }
.timeline-dot.timeline-active { background: #E67E22; }
.timeline-dot.timeline-pending { background: #CCC; }
.timeline-content {
  flex: 1;
  min-width: 0;
}
.timeline-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.timeline-cat-badge {
  font-size: 11px;
  padding: 1px 8px;
  border-radius: 10px;
  font-weight: 400;
}
.timeline-cat-badge.cat-团日活动 { background: #e8f5e9; color: #2E7D32; }
.timeline-cat-badge.cat-团干培训 { background: #e3f2fd; color: #1565C0; }
.timeline-sub {
  font-size: 12px;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: 10px;
}
.timeline-date { font-weight: 500; }
.timeline-status {
  padding: 1px 8px;
  border-radius: 10px;
  font-size: 11px;
}
.timeline-status.status-已完成 { background: #e8f5e9; color: #2E7D32; }
.timeline-status.status-进行中 { background: #fff3e0; color: #E65100; }
.timeline-status.status-未开始 { background: #f5f5f5; color: #757575; }
.timeline-assignee { color: var(--color-text-lighter); }

/* ==================== 通用卡片 ==================== */
.card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  margin-bottom: 24px;
  border: 1px solid rgba(0,0,0,0.04);
}
.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  padding-bottom: 14px;
  border-bottom: 2px solid #F5EFE6;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.card-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 18px;
  background: linear-gradient(180deg, var(--color-primary), #C9A063);
  border-radius: 2px;
}

/* ==================== 表格 ==================== */
.table-wrap { overflow-x: auto; border-radius: 6px; border: 1px solid var(--color-border); }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: #fff;
}
.data-table th {
  background: linear-gradient(180deg, var(--color-secondary), #243341);
  color: #fff;
  padding: 12px 14px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
  font-size: 13px;
  letter-spacing: 0.5px;
  border-bottom: 2px solid #C9A063;
}
.data-table th:first-child { padding-left: 18px; }
.data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid #F0F1F3;
}
.data-table td:first-child { padding-left: 18px; }
.data-table tbody tr:nth-child(even) { background: #FAFBFC; }
.data-table tbody tr:hover { background: #FAF5F5; }
.data-table .empty-row td {
  text-align: center;
  color: var(--color-text-light);
  padding: 36px;
  background: #fff;
}

/* 状态标签 */
.status-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  border-radius: 20px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.3px;
  white-space: nowrap;
}
.status-pending  { background: #EEF0F2; color: #5C6B7A; }
.status-progress { background: #FFF4D6; color: #8A6D1B; }
.status-done     { background: #D7F0E0; color: #1B7A3D; }
.status-overdue  { background: #FADBD8; color: #922B21; }

/* ==================== 工具栏 ==================== */
.section-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-secondary);
  position: relative;
  padding-left: 14px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 5px; height: 22px;
  background: linear-gradient(180deg, var(--color-primary), #C9A063);
  border-radius: 3px;
}
.toolbar-actions { display: flex; gap: var(--space-md); }

.filter-bar {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-base);
  flex-wrap: wrap;
  align-items: center;
}
.filter-select, .filter-input {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-family: inherit;
  outline: none;
  background: #fff;
  transition: border-color 0.18s, box-shadow 0.18s;
}
.filter-select:focus, .filter-input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(139,26,26,0.1); }
.filter-input { min-width: 220px; }

/* ==================== 组织架构 ==================== */
.members-layout {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.dept-tree-card { min-width: 280px; max-width: 320px; flex-shrink: 0; }
.dept-tree { font-size: 14px; }
.dept-node { margin-bottom: 2px; }
.dept-node-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.15s;
}
.dept-node-row:hover { background: #FAF5F5; }
.dept-node-row.selected { background: #FDEAEA; color: var(--color-primary); font-weight: 600; }
.dept-toggle { width: 16px; text-align: center; font-size: 12px; color: var(--color-text-light); cursor: pointer; }
.dept-name { flex: 1; }
.dept-actions { display: none; gap: 4px; }
.dept-node-row:hover .dept-actions { display: flex; }
.dept-actions button {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  color: var(--color-text-light);
  padding: 2px 4px;
}
.dept-actions button:hover { color: var(--color-primary); }
.dept-children { margin-left: 20px; border-left: 1px dashed var(--color-border); padding-left: 8px; }

/* ==================== 任务列表（普通干事视图） ==================== */
.task-list { display: flex; flex-direction: column; gap: 12px; }
.task-item {
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 16px 18px;
  background: #fff;
  transition: box-shadow 0.2s, transform 0.2s;
}
.task-item:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.1); transform: translateY(-1px); }
.task-item.overdue { border-left-color: var(--color-danger); background: #FFFAFA; }
.task-item-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-sm); gap: var(--space-md); }
.task-item-title { font-size: var(--text-md); font-weight: 600; color: var(--color-secondary); line-height: 1.3; }
.task-item-meta { display: flex; gap: var(--space-base); font-size: var(--text-sm); color: var(--color-text-light); margin-bottom: var(--space-md); flex-wrap: wrap; }
.task-item-meta span { display: inline-flex; align-items: center; gap: var(--space-xs); }
.task-item-bottom { display: flex; align-items: flex-end; gap: var(--space-md); margin-top: var(--space-md); flex-wrap: wrap; }
.task-item-bottom label { font-size: var(--text-sm); color: var(--color-text-light); white-space: nowrap; }
.task-item-bottom select {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-family: inherit;
  outline: none;
  background: #fff;
}
.task-item-bottom textarea {
  flex: 1;
  min-width: 180px;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-family: inherit;
  resize: vertical;
  min-height: 38px;
  outline: none;
}

/* 部员材料上交区 */
.task-materials-area {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px dashed var(--color-border);
}
.member-materials-header {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}
.member-materials-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.member-material-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}
.member-material-item label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  min-width: 70px;
}
.member-material-item input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
}
.member-material-item .mat-link {
  color: var(--color-primary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
}
.member-material-item .mat-link:hover { text-decoration: underline; }
.btn-sm {
  font-size: 12px;
  padding: 3px 10px;
}
.task-item-bottom textarea:focus, .task-item-bottom select:focus { border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(139,26,26,0.1); }

.hint-text { color: var(--color-text-light); font-size: var(--text-base); padding: var(--space-lg) 0; text-align: center; }

/* ==================== 批量添加表格 ==================== */
.batch-table .form-input {
  padding: 6px 10px;
  font-size: 13px;
  min-width: 80px;
}
.batch-table td {
  padding: 4px 6px;
}

/* ==================== 弹窗 ==================== */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  animation: overlayIn 0.18s ease;
}
@keyframes overlayIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: #fff;
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .modal-overlay, .modal { animation: none; }
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-base) var(--space-lg);
  border-bottom: 1px solid var(--color-border-light);
}
.modal-header h3 { font-size: var(--text-lg); color: var(--color-primary); font-weight: 600; }
.modal-close {
  border: none;
  background: transparent;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text-light);
  line-height: 1;
}
.modal-close:hover { color: var(--color-danger); }
.modal-body { padding: 20px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-base) var(--space-lg);
  border-top: 1px solid var(--color-border-light);
}
.modal-footer .btn { min-width: 88px; }
/* 弹窗内按钮用深色文字 */
.modal-footer .btn-outline {
  color: var(--color-text);
  border-color: var(--color-border);
}
.modal-footer .btn-outline:hover { background: var(--color-bg); }

/* ==================== 表单 ==================== */
.form-group { margin-bottom: var(--space-base); }
.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary);
  letter-spacing: 0.2px;
}
.form-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  font-family: inherit;
  outline: none;
  transition: border-color 0.18s, box-shadow 0.18s;
  background: #fff;
}
.form-input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(139,26,26,0.1); }
textarea.form-input { resize: vertical; }
.form-row { display: flex; gap: var(--space-base); }
.form-row .form-group { flex: 1; }
.form-error {
  color: var(--color-danger);
  font-size: var(--text-sm);
  padding: var(--space-sm) var(--space-md);
  background: #FFF5F5;
  border-radius: var(--radius-sm);
  border: 1px solid #F5C6CB;
}

/* ==================== Toast ==================== */
.toast {
  position: fixed;
  top: 84px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-secondary);
  color: #fff;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  z-index: 2000;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-danger); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-12px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ==================== 加载遮罩 ==================== */
.loading-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 3000;
}
.loading-overlay p { margin-top: var(--space-md); color: var(--color-text-light); font-size: var(--text-sm); }
.loading-spinner {
  width: 44px; height: 44px;
  border: 3px solid var(--color-border-light);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ==================== 操作列按钮 ==================== */
.action-btns { display: flex; gap: var(--space-xs); }
.action-btns button {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: var(--text-sm);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: background 0.15s;
}
.action-btns .edit-btn { color: var(--color-info); }
.action-btns .delete-btn { color: var(--color-danger); }
.action-btns button:hover { background: var(--color-border-light); }

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .metrics-row { grid-template-columns: repeat(2, 1fr); }
  .charts-row { grid-template-columns: 1fr; }
  .members-layout { flex-direction: column; }
  .dept-tree-card { max-width: 100%; min-width: 0; }
}
@media (max-width: 640px) {
  .metrics-row { grid-template-columns: 1fr; }
  .navtabs-inner { padding: 0; overflow-x: auto; }
  .navtab { padding: 10px 16px; font-size: 14px; white-space: nowrap; }
  .topbar-title h1 { font-size: 15px; }
  .form-row { flex-direction: column; }
  .section-toolbar { flex-direction: column; align-items: flex-start; gap: 10px; }
}

/* =========================================================================
   V2 新增：材料上传、团日评选、案例库
   ========================================================================= */

/* 任务弹窗 - 扩展字段区 */
.task-extra-fields { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--color-border); }
.materials-section-label {
  display: block; font-weight: 600; margin-bottom: 12px;
  color: var(--color-primary); font-size: var(--text-md);
}
.materials-upload-row {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 12px;
}
.material-upload-item {
  background: var(--color-bg-alt); border: 1px dashed var(--color-border);
  border-radius: 8px; padding: 12px; text-align: center; transition: border-color 0.2s;
}
.material-upload-item:hover { border-color: var(--color-primary); }
.material-upload-item label {
  display: block; font-size: var(--text-sm); font-weight: 600;
  margin-bottom: 8px; color: var(--color-text);
}
.material-upload-item input[type="file"] {
  width: 100%; font-size: var(--text-xs); color: var(--color-text-light);
}
.material-upload-item input[type="file"]::file-selector-button {
  background: var(--color-primary); color: #fff; border: none;
  border-radius: 4px; padding: 4px 10px; font-size: var(--text-xs);
  cursor: pointer; margin-right: 6px;
}
.material-status {
  display: block; margin-top: 6px; font-size: var(--text-xs);
  color: var(--color-text-light);
}
.material-status.uploaded { color: var(--color-success); font-weight: 600; }
.material-completeness {
  text-align: right; font-size: var(--text-sm); font-weight: 600;
  color: var(--color-primary); padding-top: 8px;
}

/* 团日评选区 */
.eval-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(380px, 1fr)); gap: 16px; }
.eval-card {
  background: #fff; border-radius: 12px; padding: 20px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--color-border);
  transition: box-shadow 0.2s, transform 0.2s; position: relative; overflow: hidden;
}
.eval-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.eval-card.excellent { border-color: var(--color-accent); border-width: 2px; }
.eval-card.excellent::before {
  content: '月度优秀'; position: absolute; top: 10px; right: -28px;
  background: var(--color-accent); color: #fff; font-size: 11px;
  padding: 2px 32px; transform: rotate(35deg); font-weight: 600;
}
.eval-card h4 { font-size: var(--text-md); margin-bottom: 8px; color: var(--color-text); }
.eval-meta { font-size: var(--text-sm); color: var(--color-text-light); margin-bottom: 4px; }
.eval-completeness {
  display: inline-block; padding: 2px 10px; border-radius: 12px;
  font-size: var(--text-xs); font-weight: 600; margin: 8px 0;
}
.eval-completeness.full { background: rgba(34,139,34,0.1); color: var(--color-success); }
.eval-completeness.partial { background: rgba(255,140,0,0.1); color: #c87f0a; }
.eval-completeness.empty { background: rgba(139,0,0,0.1); color: var(--color-primary); }
.eval-score { font-size: var(--text-sm); color: var(--color-text); margin: 8px 0; }
.eval-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.eval-actions .btn { padding: 6px 14px; font-size: var(--text-sm); }

/* 团日评选 - 按班级评分（V10） */
.eval-task-card {
  background: #fff; border-radius: 12px; padding: 20px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--color-border);
  margin-bottom: 20px;
}
.eval-task-head { margin-bottom: 16px; }
.eval-task-head h4 { font-size: var(--text-lg); color: var(--color-primary); font-weight: 600; margin-bottom: 6px; }
.eval-class-table-wrap { overflow-x: auto; }
.eval-class-table {
  width: 100%; border-collapse: collapse; font-size: var(--text-sm);
  min-width: 760px;
}
.eval-class-table th, .eval-class-table td {
  padding: 10px 8px; text-align: center; border-bottom: 1px solid var(--color-border);
}
.eval-class-table th {
  background: var(--color-bg); color: var(--color-text); font-weight: 600;
  white-space: nowrap; position: sticky; top: 0;
}
.eval-class-table td.class-name-cell {
  font-weight: 600; color: var(--color-primary); white-space: nowrap;
}
.eval-class-table tr.row-excellent { background: rgba(255, 200, 50, 0.08); }
.eval-class-table tr.row-excellent td.class-name-cell::before {
  content: '★'; color: var(--color-accent); margin-right: 4px;
}
.eval-score-input {
  width: 64px; padding: 4px 6px; text-align: center;
  border: 1px solid var(--color-border); border-radius: 6px; font-size: var(--text-sm);
}
.eval-score-input:focus { border-color: var(--color-primary); outline: none; }
.total-score-cell { font-weight: 700; color: var(--color-primary); font-size: var(--text-md); }
.action-cell { white-space: nowrap; }
.action-cell .btn { margin: 2px; }
.excellent-tag {
  color: var(--color-accent); font-weight: 600; font-size: var(--text-xs);
  padding: 2px 8px; background: rgba(255, 200, 50, 0.15); border-radius: 10px;
}
.hint-text-inline { color: var(--color-text-light); font-size: var(--text-xs); }
.btn-sm { padding: 4px 10px; font-size: var(--text-xs); }

/* 材料查看弹窗 */
.material-item {
  margin-bottom: 16px; padding: 14px; border: 1px solid var(--color-border);
  border-radius: 8px; background: var(--color-bg);
}
.material-type { font-weight: 600; color: var(--color-primary); margin-bottom: 4px; }
.material-name { font-size: var(--text-sm); color: var(--color-text); margin-bottom: 8px; word-break: break-all; }
.material-uploader { color: var(--color-text-light); font-size: var(--text-xs); margin-left: 8px; }
.material-preview { max-width: 100%; border-radius: 6px; margin-bottom: 8px; }

/* 当月优秀班级 */
.excellent-classes-box { padding: 4px 0; }
.excellent-classes-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px;
}
.excellent-class-card {
  background: linear-gradient(135deg, #fff8e1, #fff); border: 1px solid #f0d878;
  border-radius: 12px; padding: 16px; text-align: center; position: relative;
  box-shadow: var(--shadow-sm); transition: transform 0.2s, box-shadow 0.2s;
}
.excellent-class-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.excellent-class-trophy { font-size: 28px; margin-bottom: 4px; }
.excellent-class-name { font-size: var(--text-md); font-weight: 700; color: var(--color-primary); }
.excellent-class-theme { font-size: var(--text-xs); color: var(--color-text-light); margin: 4px 0 6px; }
.excellent-class-score { font-size: 22px; font-weight: 800; color: #c89500; }
.excellent-class-score span { font-size: var(--text-sm); font-weight: 600; margin-left: 2px; }

/* 案例库 */
.filter-bar {
  display: flex; gap: 12px; margin-bottom: 20px; align-items: center; flex-wrap: wrap;
}
.filter-input {
  flex: 1; min-width: 200px; padding: 8px 14px; border: 1px solid var(--color-border);
  border-radius: 8px; font-size: var(--text-sm); background: #fff;
}
.filter-input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(139,0,0,0.1); }
.filter-select {
  padding: 8px 14px; border: 1px solid var(--color-border); border-radius: 8px;
  font-size: var(--text-sm); background: #fff; cursor: pointer;
}
.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.case-card {
  background: #fff; border-radius: 12px; padding: 20px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--color-border);
  transition: box-shadow 0.2s, transform 0.2s; cursor: pointer;
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.case-card-category {
  display: inline-block; padding: 2px 10px; border-radius: 4px;
  font-size: var(--text-xs); font-weight: 600; margin-bottom: 10px;
}
.case-card-category.ty { background: rgba(139,0,0,0.08); color: var(--color-primary); }
.case-card-category.px { background: rgba(70,80,90,0.08); color: var(--color-text); }
.case-card h4 { font-size: var(--text-md); margin-bottom: 8px; line-height: 1.4; }
.case-card p { font-size: var(--text-sm); color: var(--color-text-light); line-height: 1.6; margin-bottom: 10px; }
.case-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.case-tag {
  font-size: var(--text-xs); padding: 2px 8px; border-radius: 4px;
  background: var(--color-bg-alt); color: var(--color-text-light);
}
.case-empty {
  grid-column: 1 / -1; text-align: center; padding: 48px;
  color: var(--color-text-light); font-size: var(--text-md);
}
.hint-text { color: var(--color-text-light); text-align: center; padding: 32px; }

/* ==================== 案例批量上传 ==================== */
.case-mode-tabs {
  display: flex; gap: 0; margin-bottom: 20px;
  border-bottom: 2px solid var(--color-border);
}
.case-mode-tab {
  padding: 10px 24px; border: none; background: none;
  font-size: var(--text-sm); color: var(--color-text-light);
  cursor: pointer; border-bottom: 3px solid transparent;
  margin-bottom: -2px; transition: all 0.2s;
  font-family: inherit;
}
.case-mode-tab:hover { color: var(--color-primary); }
.case-mode-tab.active {
  color: var(--color-primary); font-weight: 600;
  border-bottom-color: var(--color-primary);
}

.batch-upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: 12px; padding: 48px 24px;
  text-align: center; cursor: pointer;
  transition: all 0.2s; background: var(--color-bg-alt);
}
.batch-upload-zone:hover {
  border-color: var(--color-primary);
  background: rgba(139,0,0,0.03);
}
.batch-upload-zone.dragover {
  border-color: var(--color-primary);
  background: rgba(139,0,0,0.08);
}
.batch-upload-icon { font-size: 48px; margin-bottom: 12px; }
.batch-upload-zone p { margin: 4px 0; color: var(--color-text); }

.batch-file-list { margin: 16px 0; max-height: 300px; overflow-y: auto; }
.batch-file-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; background: #fff;
  border: 1px solid var(--color-border); border-radius: 8px;
  margin-bottom: 8px; font-size: var(--text-sm);
}
.batch-file-item .file-icon { font-size: 20px; }
.batch-file-item .file-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.batch-file-item .file-size { color: var(--color-text-light); font-size: var(--text-xs); white-space: nowrap; }
.batch-file-item .file-remove {
  background: none; border: none; color: var(--color-text-light);
  cursor: pointer; font-size: 18px; padding: 0 4px;
}
.batch-file-item .file-remove:hover { color: var(--color-danger); }
.batch-file-item.uploading { opacity: 0.6; }
.batch-file-item.done { border-color: var(--color-success); }
.batch-file-item.error { border-color: var(--color-danger); }

.batch-options { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--color-border); }

.case-file-list { margin-top: 8px; }
.case-file-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; background: var(--color-bg-alt);
  border-radius: 6px; margin-bottom: 6px; font-size: var(--text-sm);
}
.case-file-item .file-link { color: var(--color-primary); text-decoration: none; flex: 1; }
.case-file-item .file-link:hover { text-decoration: underline; }
.case-file-item .file-del {
  background: none; border: none; color: var(--color-text-light);
  cursor: pointer; font-size: 16px;
}
.case-file-item .file-del:hover { color: var(--color-danger); }

/* 任务分类徽章 */
.cat-badge {
  display: inline-block; padding: 1px 6px; border-radius: 3px;
  font-size: 11px; font-weight: 600; margin-right: 6px; vertical-align: middle;
}
.cat-badge.ty { background: rgba(139,0,0,0.1); color: var(--color-primary); }
.cat-badge.px { background: rgba(70,80,90,0.1); color: var(--color-text); }

/* =========================================================================
   移动端响应式适配（手机端优化）
   ========================================================================= */

/* 平板及以下：≤1024px */
@media (max-width: 1024px) {
  .main-content {
    padding: var(--space-base);
  }
  .navtabs-inner {
    padding: 0 var(--space-sm);
  }
  .navtab {
    padding: 12px 18px;
  }
  .topbar-inner {
    padding: 0 var(--space-base);
    height: 60px;
  }
  .topbar-title h1 { font-size: 18px; letter-spacing: 1px; }
  .topbar-title span { font-size: 11px; }
  .topbar-emblem { width: 40px; height: 40px; }
  .topbar-right { gap: 10px; }
  .case-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
  .eval-list { grid-template-columns: 1fr; }
}

/* 手机：≤768px */
@media (max-width: 768px) {
  /* 顶部导航栏：手机端重新布局 */
  .topbar {
    position: sticky;
    top: 0;
  }
  /* 水印：手机端缩小并降低透明度，避免遮挡文字 */
  .topbar-watermark {
    background-size: auto 50%;   /* 从 80% 缩小到 50% */
    background-position: 30% center;
    opacity: 0.5;                /* 半透明，不抢戏 */
  }
  .topbar-inner {
    height: 56px;
    padding: 0 12px;
    flex-wrap: nowrap;
  }
  .topbar-left {
    gap: 8px;
    flex: 1;
    min-width: 0;                /* 允许收缩，防止挤压右侧 */
  }
  .topbar-emblem { width: 32px; height: 32px; flex-shrink: 0; }
  .topbar-title { min-width: 0; flex: 1; }
  .topbar-title h1 {
    font-size: 15px;
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .topbar-title span { display: none; }

  /* 右侧操作区：横向排列不换行 */
  .topbar-right {
    gap: 6px;
    flex-shrink: 0;
    flex-wrap: nowrap;
  }
  .topbar-right .btn {
    padding: 5px 10px;
    font-size: 12px;
    white-space: nowrap;
  }
  /* 管理员徽章：强制横向、单行 */
  .admin-badge {
    padding: 3px 6px 3px 8px;
    font-size: 11px;
    flex-wrap: nowrap;
    white-space: nowrap;
    gap: 6px;
  }
  .admin-badge .btn { padding: 2px 8px; font-size: 11px; }
  .user-display {
    font-size: 11px;
    max-width: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  /* 导航标签栏：横向滚动 + 紧凑 */
  .navtabs-inner {
    padding: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .navtabs-inner::-webkit-scrollbar { display: none; }
  .navtab {
    padding: 10px 14px;
    font-size: 13px;
    white-space: nowrap;
    flex-shrink: 0;
  }

  /* 主内容区：减少 padding */
  .main-content {
    padding: var(--space-sm);
    padding-bottom: var(--space-xl);
  }

  /* 指标卡片：单列 */
  .metrics-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 16px;
  }
  .metric-card {
    padding: 14px 12px;
    gap: 10px;
  }
  .metric-icon {
    width: 40px; height: 40px;
    font-size: 22px;
    border-radius: 10px;
  }
  .metric-value { font-size: 22px; }
  .metric-label { font-size: 12px; }

  /* 卡片：减少 padding */
  .card {
    padding: 14px;
    margin-bottom: 16px;
    border-radius: 10px;
  }
  .card-title {
    font-size: 15px;
    padding-bottom: 10px;
    margin-bottom: 14px;
  }

  /* 表格：横向滚动 + 字号缩小 */
  .table-wrap { font-size: 13px; }
  .data-table th, .data-table td {
    padding: 8px 10px;
    font-size: 13px;
  }
  .data-table th { white-space: nowrap; }

  /* 筛选栏：堆叠排列 */
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .filter-input, .filter-select {
    width: 100%;
    min-width: 0;
    padding: 8px 12px;
    font-size: 13px;
  }

  /* 工具栏：堆叠 */
  .section-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .section-title { font-size: 18px; }
  .toolbar-actions { width: 100%; }
  .toolbar-actions .btn { width: 100%; }

  /* 表单行：堆叠 */
  .form-row {
    flex-direction: column;
    gap: 12px;
  }
  .form-row > .form-group { flex: 1 !important; }

  /* 弹窗：全屏化 */
  .modal-overlay {
    padding: 0;
    align-items: stretch;
  }
  .modal {
    width: 100%;
    max-width: 100%;
    max-height: 100vh;
    height: 100%;
    border-radius: 0;
    overflow-y: auto;
  }
  .modal-header {
    padding: 12px 16px;
    position: sticky;
    top: 0;
    background: #fff;
    z-index: 10;
    border-bottom: 1px solid var(--color-border);
  }
  .modal-header h3 { font-size: 16px; }
  .modal-body { padding: 14px 16px; }
  .modal-footer {
    padding: 12px 16px;
    position: sticky;
    bottom: 0;
    background: #fff;
    border-top: 1px solid var(--color-border);
  }
  .modal-footer .btn { flex: 1; padding: 10px; }

  /* 登录遮罩：紧凑 */
  .auth-gate { padding: 16px; }
  .auth-card {
    padding: 28px 22px;
    border-radius: 12px;
  }
  .auth-title { font-size: 19px; }
  .auth-logo img { width: 60px; height: 60px; }

  /* 案例库网格：单列 */
  .case-grid { grid-template-columns: 1fr; gap: 12px; }
  .case-card { padding: 16px; }

  /* 团日评选：评分表格优化 */
  .eval-task-card { padding: 14px; }
  .eval-task-head h4 { font-size: 16px; }
  .eval-class-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .eval-class-table { font-size: 12px; min-width: 600px; }
  .eval-class-table th, .eval-class-table td { padding: 8px 4px; }
  .eval-score-input { width: 50px; padding: 3px 4px; font-size: 12px; }
  .action-cell .btn { padding: 3px 8px; font-size: 11px; margin: 1px; }

  /* 人员档案：照片列隐藏，腾出空间 */
  .data-table th:first-child,
  .data-table td:first-child {
    /* 保留但缩小 */
  }

  /* 当月优秀班级：单列 */
  .excellent-classes-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .excellent-class-card { padding: 14px; }
  .excellent-class-trophy { font-size: 24px; }
  .excellent-class-score { font-size: 20px; }

  /* 人员一览：纵向排列 */
  .members-showcase {
    grid-template-columns: 1fr !important;
    gap: 10px;
  }

  /* 时间线：紧凑 */
  .task-timeline { padding: 0; }
  .timeline-item { padding: 10px 0; }
  .timeline-title { font-size: 13px; }
  .timeline-sub { flex-wrap: wrap; gap: 6px; font-size: 11px; }

  /* 任务列表项：紧凑 */
  .task-item {
    padding: 14px !important;
    margin-bottom: 12px;
  }
  .task-item-head { flex-wrap: wrap; gap: 8px; }
  .task-item-title { font-size: 15px; }
  .materials-upload-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  /* 批量添加账号表格：横向滚动 */
  .batch-table { min-width: 500px; }

  /* Toast：顶部居中 */
  .toast {
    top: 70px;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    max-width: 90%;
    font-size: 13px;
    padding: 10px 16px;
  }

  /* 按钮：触控友好 */
  .btn {
    padding: 8px 14px;
    font-size: 14px;
    min-height: 36px;
  }
  .btn-sm { min-height: 28px; }

  /* 表单输入：触控友好 */
  .form-input, .form-select, .form-textarea {
    padding: 10px 12px;
    font-size: 15px;  /* iOS 防止缩放：≥16px */
    min-height: 40px;
  }
  textarea.form-input { min-height: 80px; }

  /* 文件上传区：触控友好 */
  .batch-upload-zone { padding: 32px 16px; }
  .batch-upload-icon { font-size: 36px; }
}

/* 超小屏：≤420px（iPhone SE 等小屏） */
@media (max-width: 420px) {
  .topbar-inner { height: 52px; padding: 0 10px; }
  .topbar-emblem { width: 28px; height: 28px; }
  .topbar-title h1 { font-size: 13px; letter-spacing: 0; }
  .topbar-right .btn { padding: 4px 8px; font-size: 11px; }
  .admin-badge { padding: 2px 5px 2px 6px; font-size: 10px; gap: 4px; }
  .admin-badge .btn { padding: 2px 6px; font-size: 10px; }
  .user-display { display: none; }  /* 极小屏隐藏用户名 */
  .navtab { padding: 9px 11px; font-size: 12px; }
  .metric-value { font-size: 20px; }
  .metric-icon { width: 36px; height: 36px; font-size: 20px; }
  .auth-card { padding: 22px 18px; }
  .auth-title { font-size: 17px; }
  .section-title { font-size: 16px; }
  .card-title { font-size: 14px; }
  .eval-class-table { min-width: 500px; font-size: 11px; }
  .eval-score-input { width: 42px; }
}

/* 横屏适配（手机横屏） */
@media (max-width: 900px) and (orientation: landscape) {
  .auth-card {
    max-width: 480px;
    padding: 24px 28px;
  }
  .auth-logo img { width: 56px; height: 56px; }
  .auth-title { font-size: 18px; margin-bottom: 2px; }
  .auth-subtitle { margin-bottom: 18px; }
}