/* ========== 集团数字化学习平台 v3.0 样式 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
--primary: #0F4BB8;
--primary-light: #E8EEF9;
--primary-dark: #0A3A8F;
--accent: #FF6B1A;
--accent-light: #FFF0E6;
--brand-blue: #0F4BB8;
--brand-orange: #FF6B1A;
--success: #52c41a;
--warning: #faad14;
--danger: #ff4d4f;
--purple: #722ed1;
--cyan: #13c2c2;
--text: #1f1f1f;
--text-secondary: #595959;
--text-light: #6b7280; /* U-17：原 #8c8c8c 白底对比度约 3.5:1，低于 WCAG AA 4.5:1 */
--border: #f0f0f0;
--bg: #f5f7fa;
--bg-white: #ffffff;
--shadow: 0 2px 8px rgba(0,0,0,0.06);
--shadow-lg: 0 4px 16px rgba(0,0,0,0.1);
--radius: 8px;
--radius-lg: 12px;
}
html, body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--text); background: var(--bg); font-size: 14px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; font-size: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
img { max-width: 100%; display: block; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-thumb { background: #d9d9d9; border-radius: 3px; }
::-webkit-scrollbar-track { background: transparent; }
/* ========== 按钮 ========== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 16px; border-radius: var(--radius); font-weight: 500; transition: all 0.2s; cursor: pointer; white-space: nowrap; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-default { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-default:hover { border-color: var(--primary); color: var(--primary); }
.btn-text { color: var(--primary); padding: 4px 8px; }
.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
/* ========== 卡片 ========== */
.card { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 20px; margin-bottom: 16px; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.card-title { font-size: 16px; font-weight: 600; }
.card-extra { font-size: 13px; color: var(--primary); }
/* ========== 徽章/标签 ========== */
# ★ 2026-10-11：加 white-space:nowrap。.tag 是 inline-block，落在窄列（如「课程状态」
# 只给 80px、扣掉 td 左右各 16px 内边距只剩 48px，而「已发布」实宽 52px）里会被
# 压成两行「已发 / 布」。标签本来就是不可断的短词，一律不许折行。
.tag { display: inline-block; white-space: nowrap; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 500; }
.tag-video { background: #fff1f0; color: #cf1322; }
.tag-audio { background: #f6ffed; color: #389e0d; }
.tag-h5 { background: #e6f7ff; color: #096dd9; }
.tag-scorm { background: #f9f0ff; color: #722ed1; }
.tag-link { background: #fff7e6; color: #d46b08; }
.tag-required { background: var(--danger); color: #fff; }
.tag-done { background: #f6ffed; color: var(--success); }
.tag-urgent { background: #fff1f0; color: var(--danger); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }
/* ========== 布局 ========== */
.app-container { min-height: 100vh; padding-bottom: 80px; }
.top-nav { position: sticky; top: 0; z-index: 100; background: var(--bg-white); box-shadow: var(--shadow); }
.top-nav-inner { max-width: 1400px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; height: 60px; }
.logo { font-size: 20px; font-weight: 700; color: var(--primary); display: flex; align-items: center; gap: 8px; }
.logo img { height:32px; }
.nav-links { display: flex; gap: 4px; }
.nav-link { padding: 8px 16px; border-radius: var(--radius); color: var(--text-secondary); font-weight: 500; transition: all 0.2s; cursor: pointer; }
.nav-link:hover, .nav-link.active { background: var(--primary-light); color: var(--primary); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.user-menu { display: flex; align-items: center; gap: 8px; cursor: pointer; padding: 4px 12px; border-radius: 20px; transition: background 0.2s; }
.user-menu:hover { background: var(--bg); }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, #667eea, #764ba2); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 14px; flex-shrink: 0; position: relative; overflow: hidden; }
/* 2026-09-19 头像：.avatar 里放了 ![]()
（用户上传的头像）时铺满圆形。
img 绝对定位压在姓名首字之上；图片加载失败时前端会移除 img，
自动露出下面的首字 —— 不会留下空白方块。 */
.avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
/* 2026-09-19c：头像自己就是入口（不再有按钮），这里只负责可点击手感，
并在触摸端抑制长按系统菜单（iOS 会弹「存储图像」，不挡会盖住我们的清除确认框）。 */
.avatar-clickable { cursor: pointer; transition: transform 0.15s, box-shadow 0.15s;
-webkit-tap-highlight-color: transparent; -webkit-touch-callout: none; touch-action: manipulation; }
.avatar-clickable img { -webkit-touch-callout: none; -webkit-user-select: none; user-select: none; }
.avatar-clickable:active { transform: scale(0.94); }
.avatar-clickable:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.avatar-clickable.has-custom { box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.35); }
/* 2026-09-19：登录页"被退出来"的原因提示条（app.js showAuthNotice() 填充）。
原来 401 是直接 location.reload()，学员只看到又回到登录页、不知道发生了什么。 */
.auth-notice { background: #fffbe6; border: 1px solid #ffe58f; color: #874d00; border-radius: 8px;
padding: 10px 12px; font-size: 13px; line-height: 1.6; margin-bottom: 14px; }
.badge { position: absolute; top: -4px; right: -4px; min-width: 18px; height: 18px; background: var(--danger); color: #fff; border-radius: 9px; font-size: 11px; display: flex; align-items: center; justify-content: center; padding: 0 5px; }
.main-content { max-width: 1400px; margin: 0 auto; padding: 24px; }
/* ========== 底部Tab（手机端） ========== */
.bottom-tab { display: none; position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg-white); box-shadow: 0 -2px 8px rgba(0,0,0,0.06); z-index: 100; border-top: 1px solid var(--border); }
.bottom-tab-inner { display: flex; justify-content: space-around; padding: 8px 0 env(safe-area-inset-bottom); }
.tab-item { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 0; color: var(--text-light); font-size: 11px; cursor: pointer; position: relative; }
.tab-item.active { color: var(--primary); }
.tab-icon { font-size: 22px; }
/* ========== 页面切换 ========== */
.page { display: none; }
.page.active { display: block; }
/* ========== 首页 ========== */
/* 首页头部卡片：配色全部走变量，[data-style] 一挂即换肤（学员点卡片右上角 🎨 自选）
文字色也必须跟着变量走 —— "纯净白卡"是浅底，写死 #fff 就看不见字了。 */
.welcome-bar { --wc-text: #fff; --wc-sub: rgba(255,255,255,.85); --wc-chip: rgba(255,255,255,.18);
background: linear-gradient(135deg, #0F4BB8 0%, #1976D2 60%, #FF6B1A 140%);
border-radius: var(--radius-lg); padding: 28px; color: var(--wc-text); margin-bottom: 20px;
position: relative; overflow: hidden; }
.welcome-bar[data-style="aurora"] { background: linear-gradient(135deg, #4C1D95 0%, #7C3AED 45%, #06B6D4 100%); }
.welcome-bar[data-style="sunrise"] { background: linear-gradient(135deg, #FF7A18 0%, #FF4D6D 58%, #C2185B 100%); }
.welcome-bar[data-style="forest"] { background: linear-gradient(135deg, #0B3D2E 0%, #12735A 58%, #7BC96F 135%); }
.welcome-bar[data-style="midnight"] { background: linear-gradient(135deg, #0B1020 0%, #1B2440 58%, #8C6B2F 145%); }
.welcome-bar[data-style="minimal"] { --wc-text: #1F2329; --wc-sub: #5A6472; --wc-chip: rgba(15,75,184,.08);
background: linear-gradient(135deg, #FFFFFF 0%, #F4F8FF 100%); border: 1px solid #E4EAF5;
box-shadow: 0 2px 12px rgba(15,75,184,.07); }
.welcome-bar[data-style="minimal"]::after { background: rgba(15,75,184,.05); }
.welcome-bar::after { content: ''; position: absolute; top: -50%; right: -10%; width: 300px; height: 300px; background: rgba(255,255,255,0.08); border-radius: 50%; }
.welcome-title { font-size: 22px; font-weight: 700; margin-bottom: 6px; position: relative; z-index: 1;
padding-right: 44px; } /* 避开右上角换风格按钮 */
/* 日期 + 星期：学员一眼看到"今天周几" */
.welcome-date { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px;
line-height: 1.6; padding: 3px 11px; border-radius: 20px; background: var(--wc-chip);
color: var(--wc-text); margin-bottom: 10px; position: relative; z-index: 1; }
.welcome-date .wd-week { font-weight: 600; }
.welcome-sub { font-size: 13px; color: var(--wc-sub); margin-bottom: 18px; position: relative; z-index: 1; }
/* 首页卡片右上角「换风格」：就地换肤入口（不用进设置页）
颜色全走 --wc-*，所以 6 套配色下都可见（纯白卡也不会白底白字） */
.welcome-style-btn { position: absolute; top: 12px; right: 12px; z-index: 3;
width: 34px; height: 34px; padding: 0; border: 0; border-radius: 50%; cursor: pointer;
display: flex; align-items: center; justify-content: center;
background: var(--wc-chip); color: var(--wc-text); font-size: 16px; line-height: 1;
transition: transform .2s, background .2s; }
.welcome-style-btn:hover { transform: scale(1.08); background: rgba(255,255,255,.3); }
.welcome-style-btn:active { transform: scale(.94); }
.welcome-bar[data-style="minimal"] .welcome-style-btn:hover { background: rgba(15,75,184,.16); }
.welcome-style-panel { position: absolute; top: 52px; right: 12px; z-index: 4;
display: none; flex-wrap: wrap; justify-content: flex-end; gap: 7px; padding: 9px;
max-width: calc(100% - 24px); border-radius: 14px;
background: rgba(17,24,39,.66); backdrop-filter: blur(8px);
box-shadow: 0 8px 24px rgba(0,0,0,.22); }
.welcome-style-panel.show { display: flex; }
.wsp-item { width: 36px; height: 30px; padding: 2px; border-radius: 9px; cursor: pointer;
background: rgba(255,255,255,.16); transition: transform .15s, background .15s; }
.wsp-item:hover { transform: translateY(-2px); }
.wsp-item.active { background: #fff; }
.wsp-item .wsp-prev { width: 100%; height: 100%; border-radius: 7px; }
/* 待办卡片 */
.todo-card { background: #fff; border-radius: var(--radius); padding: 16px; margin-bottom: 20px; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; box-shadow: var(--shadow); }
.todo-item { flex: 1; min-width: 100px; text-align: center; padding: 12px; border-radius: var(--radius); cursor: pointer; transition: all 0.2s; position: relative; }
.todo-item:hover { background: var(--bg); transform: translateY(-2px); }
.todo-item .num { font-size: 28px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.todo-item.urgent .num { color: var(--danger); }
.todo-item .label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }
.todo-divider { width: 1px; height: 40px; background: var(--border); }
/* KPI统计 */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.stat-card { background: var(--bg-white); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow); transition: transform 0.2s; }
.stat-card:hover { transform: translateY(-2px); }
.stat-card .stat-value { font-size: 28px; font-weight: 700; color: var(--text); }
.stat-card .stat-label { font-size: 13px; color: var(--text-light); margin-top: 4px; }
.stat-card .stat-icon { font-size: 28px; float: right; opacity: 0.8; }
/* 可点击的统计卡（我的学习页 4 张卡同时是 tab 入口，2026-09-17）：
原来它们只有 hover 上浮、没有光标也没有高亮，用户点了没反应会以为是坏了。
这里给"能点"的卡一个明确的手势 + 当前态描边，让它看起来就像入口。 */
.stat-card.link { cursor: pointer; position: relative; }
.stat-card.link:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg, 0 6px 16px rgba(0,0,0,.1)); }
.stat-card.link:active { transform: translateY(0); }
.stat-card.link.active { border: 1px solid var(--primary); box-shadow: 0 0 0 2px rgba(22,119,255,.12); }
.stat-card.link.active .stat-label { color: var(--primary); font-weight: 600; }
.stat-card.link .stat-icon { transition: transform 0.2s; }
.stat-card.link:hover .stat-icon { transform: scale(1.08); }
/* 快捷入口 */
.quick-entries { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 20px; }
.quick-entry { background: var(--bg-white); border-radius: var(--radius); padding: 16px 8px; text-align: center; cursor: pointer; transition: all 0.2s; box-shadow: var(--shadow); }
.quick-entry:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.quick-entry .qe-icon { font-size: 32px; margin-bottom: 8px; }
.quick-entry .qe-text { font-size: 12px; color: var(--text-secondary); font-weight: 500; }
/* 轮播Banner */
.banner { height: 180px; border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 20px; position: relative; background: linear-gradient(135deg, #667eea, #764ba2); display: flex; align-items: center; padding: 32px; color: #fff; }
.banner-title { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.banner-desc { font-size: 14px; opacity: 0.9; }
/* 区块标题 */
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.section-title { font-size: 18px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
/* 课程卡片 */
.course-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.course-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); cursor: pointer; transition: all 0.2s; display: flex; flex-direction: column; }
.course-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.course-cover { position: relative; width: 100%; padding-top: 56.25%; background: linear-gradient(135deg, #667eea, #764ba2); overflow: hidden; }
.course-cover img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }
/* 2026-09-28：分类与时长上浮到封面（学员端 H5 卡片重构，方案 B）。
★ 原实现把分类放在 .course-meta 里，与「类型/讲师」和「人数/评分/时长」三组信息
抢同一条行宽：手机双列时正文只剩约 156px，而 .tag-cat 缺 flex 保护（对比
.course-instructor .tag 与 .course-stats 都是 flex:0 0 auto），被压到 19px 宽
→ 中文只能逐字换行，看起来就是一根竖排横幅，长分类名还会被截断。
max-width 留出右上角「必修」标签的位置，超长分类名走省略号。 */
.course-cover .card-cat-badge { position: absolute; left: 8px; top: 8px; z-index: 2; max-width: calc(100% - 60px); padding: 2px 8px; border-radius: 6px; background: rgba(255,255,255,0.94); color: var(--primary); font-size: 11px; font-weight: 500; line-height: 1.5; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.course-cover .card-dur-badge { position: absolute; right: 8px; bottom: 8px; z-index: 2; padding: 2px 7px; border-radius: 6px; background: rgba(0,0,0,0.45); color: #fff; font-size: 11px; line-height: 1.5; }
.course-cover .progress-mini { position: absolute; bottom: 0; left: 0; right: 0; height: 4px; background: rgba(0,0,0,0.2); }
.course-cover .progress-mini-bar { height: 100%; background: var(--primary); border-radius: 0 2px 2px 0; }
.course-body { padding: 12px; flex: 1; display: flex; flex-direction: column; }
.course-title { font-size: 14px; font-weight: 600; line-height: 1.4; height: 40px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; margin-bottom: 8px; }
.course-meta { display: flex; justify-content: space-between; align-items: center; gap: 6px; font-size: 12px; color: var(--text-light); margin-top: auto; }
.course-instructor { display: flex; align-items: center; gap: 4px; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.course-instructor .tag { flex: 0 0 auto; }
.course-stats { display: flex; gap: 8px; flex: 0 0 auto; }
/* 2026-09-29：.course-meta 的**直接子元素**统一兜底。
「我的收藏 / 我的学习」走的是各自的内联模板，里面有没有 class 的裸 ：
默认 flex-shrink:1 + min-width:auto，窄列（178px）下「3/9章」被压到 19px
逐字竖排、卡片从 195px 撑到 253px；收藏页则是「视频+讲师」被压到 7px 后
被 overflow:hidden 吃掉。规矩：首个可缩（带省略号），其余不缩也不换行。 */
.course-meta > span { flex: 0 0 auto; white-space: nowrap; }
.course-meta > span:first-child { flex: 0 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
/* 卡片副信息行（2026-09-29）：「上次学习 / 收藏于 / 完成于」这类长文本从 .course-meta
里挪到标题下方单独一行。.course-meta 是 space-between 的两端布局，硬塞第三组
信息必然互相挤压 —— 9-28 修了课程中心，9-29 才发现收藏页与我的学习页是另外三套模板。 */
.course-subline { font-size: 12px; color: var(--primary); line-height: 1.5; margin-bottom: 4px;
white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
/* 横向滚动列表 */
.scroll-row { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 8px; margin: 0 -4px -8px; }
.scroll-row::-webkit-scrollbar { display: none; }
.scroll-card { flex: 0 0 260px; background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; cursor: pointer; transition: all 0.2s; display: flex; flex-direction: column; }
.scroll-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.scroll-card .course-cover { padding-top: 50%; }
.scroll-card .course-body { padding: 10px; }
.scroll-card .course-title { font-size: 13px; height: 36px; margin-bottom: 6px; }
/* ========== 播放器页 ========== */
.player-page { max-width: 1200px; margin: 0 auto; padding: 16px; }
.player-layout { display: grid; grid-template-columns: 1fr 320px; gap: 16px; }
.player-main { background: #000; border-radius: var(--radius-lg); overflow: hidden; position: relative; }
.player-video-wrap { position: relative; width: 100%; background: #000; aspect-ratio: 16/9; }
.player-video-wrap video, .player-video-wrap audio { width: 100%; height: 100%; }
.player-video-wrap audio { margin: auto; position: absolute; top: 50%; transform: translateY(-50%); }
.player-watermark { position: absolute; top: 0; left: 0; right: 0; bottom: 0; pointer-events: none; z-index: 10; overflow: hidden; }
.watermark-text { position: absolute; color: rgba(255,255,255,0.3); font-size: 14px; transform: rotate(-30deg); white-space: nowrap; }
.iframe-player { width: 100%; height: 100%; border: none; position: absolute; top:0; left:0; background:#fff; }
/* H5/SCORM 课件容器：iframe 为绝对定位不占文档流，必须由容器撑起高度，
否则课件在 0 高度容器内初始化 → 只有声音没画面 */
#h5Player, #scormPlayer { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #fff; }
/* 组织架构（后台） */
.org-tenant-card { border:1px solid var(--border); border-radius:10px; padding:14px 18px; min-width:220px; background:var(--bg-white); cursor:pointer; transition:.2s; }
.org-tenant-card:hover { border-color:var(--primary); box-shadow:0 2px 8px rgba(22,119,255,.12); }
.org-tenant-card.dim { opacity:.45; }
.org-dept-row { display:flex; align-items:center; gap:8px; padding:7px 12px; border-radius:8px; cursor:pointer; font-size:13px; }
.org-dept-row:hover { background:#f5f8ff; }
.org-dept-row.active { background:#e8f1ff; }
.org-dept-row .org-dept-twirl { color:#bbb; width:10px; display:inline-block; }
.player-link-wrap { padding: 60px 32px; text-align: center; color: #fff; }
.player-controls { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(transparent, rgba(0,0,0,0.7)); padding: 30px 16px 12px; z-index: 20; }
.player-info-bar { background: var(--bg-white); padding: 16px; border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
.player-title { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
/* 播放页参数行（讲师/时长/学分 + 收藏/报名）
2026-09-18：原来是 display:flex 无 flex-wrap、span 无 white-space —— 一行放不下时
flex 会把每项压窄，于是文字在**项内部**折断，"60分钟"变成"60分"+"钟"、"
已报名"变成"已报"+"名"，五项挤成一团。
两个条件缺一不可：① 允许整项换行 ② 禁止项内断行（少任何一个都还会挤）。 */
.player-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px;
font-size: 12.5px; color: var(--text-light); line-height: 1.5; }
.player-meta > span { white-space: nowrap; }
/* 收藏 / 报名：直接作为 .player-meta 的 flex 子项，与「时长·学分」同排、一起换行。
2026-09-18b 去掉了原先的操作组包装层 —— 它靠 margin-left:auto 顶到最右、窄屏整组
width:100%，结果「收藏」被单独挤成一行，与参数脱节。
现在放不下时跟着前面的项一起整项折到下一行，不会再出现"孤行按钮"。
内边距刻意压到与文字行等高（只留 hover 底色），视觉上与参数同属一行。 */
.player-meta .pm-fav { border: none; background: none; cursor: pointer; font-size: 12.5px;
color: var(--text-secondary); padding: 2px 8px; border-radius: 12px; white-space: nowrap;
line-height: 1.5; transition: background .2s, color .2s; }
.player-meta .pm-fav:hover { background: var(--bg); color: var(--primary); }
.player-meta .pm-enroll { border: none; cursor: pointer; font-size: 12.5px; color: #fff;
background: var(--primary); padding: 3px 12px; border-radius: 12px; white-space: nowrap;
line-height: 1.5; transition: opacity .2s; }
.player-meta .pm-enroll:hover { opacity: .9; }
.player-meta .pm-enrolled { font-size: 12px; color: #52c41a; white-space: nowrap; }
/* 报名审核中（功能包 G）：与「已报名」同位置互斥显示 */
.player-meta .pm-pending { font-size: 12px; color: #d98a00; white-space: nowrap; }
/* 通知页候选框（功能包 G） */
.nt-pick { max-height: 220px; overflow: auto; border: 1px solid #e8e8e8; border-radius: 8px;
padding: 8px 10px; display: flex; flex-wrap: wrap; gap: 8px 18px; }
.nt-pick .nt-ck { white-space: nowrap; font-size: 13px; }
/* 详情页分类（2026-09-29）：原来播放器头部只有讲师/时长/学分，学员看不出这门课属于哪一类。 */
.player-meta .pm-cat { display: inline-flex; align-items: center; padding: 1px 8px;
border-radius: 999px; background: #f0f5ff; color: #2f54eb; border: 0.5px solid #adc6ff; }
.player-meta .pm-cat:empty { display: none; }
@media (max-width: 480px) {
.player-meta { gap: 6px 10px; font-size: 12px; }
}
.player-sidebar { display: flex; flex-direction: column; gap: 12px; }
.sidebar-tabs { display: flex; background: var(--bg-white); border-radius: var(--radius); overflow: hidden; }
.sidebar-tab { flex: 1; padding: 10px; text-align: center; cursor: pointer; font-size: 13px; font-weight: 500; color: var(--text-secondary); border-bottom: 2px solid transparent; }
.sidebar-tab.active { color: var(--primary); border-bottom-color: var(--primary); background: var(--primary-light); }
.sidebar-content { background: var(--bg-white); border-radius: var(--radius); padding: 12px; max-height: calc(100vh - 200px); overflow-y: auto; }
.chapter-list { list-style: none; }
.chapter-item { padding: 10px 12px; border-radius: var(--radius); cursor: pointer; margin-bottom: 4px; display: flex; align-items: center; gap: 10px; font-size: 13px; transition: all 0.2s; }
.chapter-item:hover { background: var(--bg); }
.chapter-item.active { background: var(--primary-light); color: var(--primary); font-weight: 500; }
.chapter-item.completed .ch-status { color: var(--success); }
.chapter-item .ch-status { width: 20px; height: 20px; border-radius: 50%; background: var(--bg); display: flex; align-items: center; justify-content: center; font-size: 11px; flex-shrink: 0; }
.chapter-item.completed .ch-status { background: var(--success); color: #fff; }
.chapter-item .ch-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chapter-item .ch-duration { font-size: 11px; color: var(--text-light); }
.note-input { width: 100%; border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 12px; resize: none; font-size: 13px; margin-bottom: 8px; }
.note-input:focus { border-color: var(--primary); }
.note-item { padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.note-item:last-child { border-bottom: none; }
.note-content { margin-bottom: 4px; }
.note-meta { font-size: 11px; color: var(--text-light); display: flex; justify-content: space-between; }
.note-time { color: var(--primary); cursor: pointer; }
.discussion-item { padding: 12px 0; border-bottom: 1px solid var(--border); }
.discussion-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.discussion-name { font-weight: 500; font-size: 13px; }
.discussion-time { font-size: 11px; color: var(--text-light); }
.discussion-content { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.player-complete-overlay { position: absolute; top:0; left:0; right:0; bottom:0; background: rgba(0,0,0,0.85); z-index: 30; display: none; flex-direction: column; align-items: center; justify-content: center; color: #fff; }
.player-complete-overlay.show { display: flex; }
.complete-icon { font-size: 64px; margin-bottom: 16px; }
.complete-title { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.complete-sub { font-size: 14px; opacity: 0.8; margin-bottom: 24px; text-align: center; }
.complete-actions { display: flex; gap: 12px; }
/* ========== 考试页 ========== */
.exam-page { max-width: 900px; margin: 0 auto; padding: 20px; }
.exam-header { background: var(--bg-white); border-radius: var(--radius-lg); padding: 20px; margin-bottom: 16px; box-shadow: var(--shadow); display: flex; justify-content: space-between; align-items: center; }
.exam-title { font-size: 20px; font-weight: 600; }
.exam-timer { font-size: 24px; font-weight: 700; color: var(--primary); font-variant-numeric: tabular-nums; }
.exam-timer.warning { color: var(--danger); animation: pulse 1s infinite; }
.exam-body { background: var(--bg-white); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); }
.question-item { padding: 20px 0; border-bottom: 1px solid var(--border); }
.question-item:last-child { border-bottom: none; }
.q-number { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; background: var(--primary); color: #fff; border-radius: 50%; font-size: 13px; font-weight: 600; margin-right: 10px; flex-shrink: 0; }
.q-type-tag { font-size: 12px; color: var(--text-light); margin-left: 8px; }
.q-mark { font-size: 12px; color: var(--warning); margin-left: 8px; cursor: pointer; }
.q-mark.marked { color: var(--danger); font-weight: 600; }
.q-content { font-size: 15px; font-weight: 500; margin-bottom: 16px; line-height: 1.6; }
.q-options { list-style: none; }
.q-option { padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 8px; cursor: pointer; transition: all 0.2s; display: flex; align-items: center; gap: 12px; font-size: 14px; }
.q-option:hover { border-color: var(--primary); background: var(--primary-light); }
.q-option.selected { border-color: var(--primary); background: var(--primary-light); color: var(--primary); font-weight: 500; }
.q-option .opt-letter { width: 24px; height: 24px; border-radius: 50%; border: 1.5px solid #d9d9d9; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; flex-shrink: 0; }
.q-option.selected .opt-letter { background: var(--primary); border-color: var(--primary); color: #fff; }
.q-fill-input { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 14px; }
.q-fill-input:focus { border-color: var(--primary); }
.exam-footer { position: sticky; bottom: 0; background: var(--bg-white); padding: 16px; border-radius: var(--radius-lg); margin-top: 16px; box-shadow: var(--shadow-lg); display: flex; justify-content: space-between; align-items: center; z-index: 50; }
.exam-progress { font-size: 13px; color: var(--text-secondary); }
/* 浮动答题卡（手机端） */
.float-answer-card { position: fixed; bottom: 80px; right: 16px; width: 56px; height: 56px; background: var(--primary); color: #fff; border-radius: 50%; display: none; align-items: center; justify-content: center; font-size: 20px; box-shadow: var(--shadow-lg); cursor: pointer; z-index: 60; }
.answer-card-panel { position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg-white); border-radius: var(--radius-lg) var(--radius-lg) 0 0; padding: 20px; box-shadow: 0 -4px 20px rgba(0,0,0,0.15); z-index: 200; display: none; transform: translateY(100%); transition: transform 0.3s; }
.answer-card-panel.show { display: block; transform: translateY(0); }
.answer-card-mask { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.4); z-index: 199; display: none; }
.answer-card-mask.show { display: block; }
.answer-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 8px; margin: 16px 0; }
.answer-grid .ag-item { aspect-ratio: 1; border-radius: var(--radius); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 13px; cursor: pointer; font-weight: 500; }
.ag-item.answered { background: var(--primary); color: #fff; border-color: var(--primary); }
.ag-item.current { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-light); }
.ag-item.marked { background: var(--warning); color: #fff; border-color: var(--warning); }
.ag-item.wrong { background: var(--danger); color: #fff; border-color: var(--danger); }
.ag-item.correct { background: var(--success); color: #fff; border-color: var(--success); }
/* 考试结果 */
.result-score { text-align: center; padding: 40px 20px; }
.result-num { font-size: 72px; font-weight: 700; color: var(--primary); line-height: 1; }
.result-num.fail { color: var(--danger); }
.result-label { font-size: 16px; color: var(--text-secondary); margin-top: 8px; }
.result-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 24px 0; }
.result-stat { text-align: center; padding: 16px; background: var(--bg); border-radius: var(--radius); }
.result-stat .rs-num { font-size: 24px; font-weight: 700; }
.result-stat .rs-label { font-size: 12px; color: var(--text-light); margin-top: 4px; }
.wrong-answer-item { padding: 16px; background: #fff1f0; border-radius: var(--radius); margin-bottom: 12px; border-left: 3px solid var(--danger); }
.wrong-answer-item .my-answer { color: var(--danger); font-weight: 500; }
.wrong-answer-item .correct-answer { color: var(--success); font-weight: 500; }
/* ========== 认证页（登录） ========== */
/* ========== 品牌Logo ========== */
.brand-logo { display:flex; align-items:center; gap:10px; }
.brand-logo img { height:36px; }
.brand-logo span { font-size:18px; font-weight:700; color:var(--primary); letter-spacing:1px; }
.brand-logo.light img { height:38px; }
.brand-logo.white span { color:#fff; }
/* ========== 登录页（PC+移动端统一华企智训品牌风格） ========== */
.auth-page {
min-height:100vh;
display:flex;
padding:0;
background:linear-gradient(135deg,#082E72 0%,#0F4BB8 45%,#1976D2 100%);
position:relative;
overflow:hidden;
}
.auth-page::before {
content:'';
position:absolute;
width:600px; height:600px;
background:radial-gradient(circle, rgba(255,107,26,0.25) 0%, transparent 70%);
top:-200px; right:-150px;
border-radius:50%;
animation:float 8s ease-in-out infinite;
}
.auth-page::after {
content:'';
position:absolute;
width:400px; height:400px;
background:radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
bottom:-100px; left:-100px;
border-radius:50%;
}
@keyframes float {
0%,100%{transform:translate(0,0);}
50%{transform:translate(-30px,30px);}
}
/* PC端左侧品牌区 */
.auth-brand {
flex:1.2;
display:flex;
flex-direction:column;
justify-content:center;
padding:60px 80px;
color:#fff;
position:relative;
z-index:2;
}
.auth-brand-logo {
background:rgba(255,255,255,0.95);
display:inline-flex;
align-items:center;
padding:14px 28px;
border-radius:12px;
margin-bottom:40px;
box-shadow:0 8px 32px rgba(0,0,0,0.2);
}
.auth-brand-logo img { height:56px; }
.auth-brand-title {
font-size:42px;
font-weight:800;
line-height:1.2;
margin-bottom:16px;
letter-spacing:2px;
}
.auth-brand-sub {
font-size:18px;
opacity:0.85;
margin-bottom:48px;
line-height:1.8;
}
.auth-features {
display:grid;
grid-template-columns:1fr 1fr;
gap:24px;
max-width:560px;
}
.auth-feature {
display:flex;
gap:14px;
align-items:flex-start;
}
.auth-feature-icon {
width:48px; height:48px;
background:rgba(255,107,26,0.9);
border-radius:12px;
display:flex;
align-items:center;
justify-content:center;
font-size:24px;
flex-shrink:0;
box-shadow:0 4px 12px rgba(255,107,26,0.4);
}
.auth-feature-text .t { font-size:16px; font-weight:600; margin-bottom:4px; }
.auth-feature-text .d { font-size:13px; opacity:0.8; line-height:1.6; }
.auth-brand-footer {
position:absolute;
bottom:40px; left:80px;
font-size:12px;
opacity:0.6;
}
/* 登录卡片区 */
.auth-panel {
width:480px;
flex-shrink:0;
display:flex;
align-items:center;
justify-content:center;
padding:40px;
position:relative;
z-index:2;
}
.auth-card {
background:#fff;
border-radius:20px;
padding:44px 40px;
width:100%;
box-shadow:0 20px 60px rgba(0,0,0,0.25);
}
.auth-card-head { text-align:center; margin-bottom:24px; }
/* 登录卡专用：label 与输入框同排（设置页等处的表单仍用旧上下布局） */
.form-group-inline { display:flex; align-items:center; gap:12px; }
.form-label-inline { margin-bottom:0; flex:none; width:30px; }
.form-field { position:relative; flex:1; min-width:0; }
.form-field .form-icon, .form-field .form-eye { top:50%; transform:translateY(-50%); }
.auth-card-logo {
display:flex; justify-content:center; margin-bottom:16px;
}
.auth-card-logo img { height:52px; }
.auth-title { font-size:24px; font-weight:700; color:var(--text); margin-bottom:8px; }
.auth-subtitle { font-size:14px; color:var(--text-secondary); }
.form-group { margin-bottom:20px; position:relative; }
.form-label { display:block; font-size:13px; font-weight:500; color:var(--text-secondary); margin-bottom:8px; }
.form-input { width:100%; padding:12px 14px; border:1px solid var(--border); border-radius:10px; font-size:14px; transition:all 0.2s; background:#fafbfc; }
.form-input:focus { border-color:var(--primary); background:#fff; box-shadow:0 0 0 3px var(--primary-light); outline:none; }
.form-input.with-icon { padding-left:42px; }
.form-icon { position:absolute; left:14px; top:38px; color:var(--text-light); font-size:16px; }
.form-eye { position:absolute; right:14px; top:38px; color:var(--text-light); cursor:pointer; font-size:16px; }
.form-row-flex { display:flex; justify-content:space-between; align-items:center; margin-bottom:24px; font-size:13px; color:var(--text-secondary); }
.form-row-flex label { display:flex; align-items:center; gap:6px; cursor:pointer; }
.form-row-flex a { color:var(--primary); }
.btn-primary { background:linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color:#fff; border:none; box-shadow:0 4px 12px rgba(15,75,184,0.3); }
.btn-primary:hover { background:linear-gradient(135deg, var(--primary-dark) 0%, #073070 100%); transform:translateY(-1px); box-shadow:0 6px 16px rgba(15,75,184,0.4); }
.btn-orange { background:linear-gradient(135deg, var(--accent) 0%, #E55A10 100%); color:#fff; box-shadow:0 4px 12px rgba(255,107,26,0.3); }
.auth-divider { display:flex; align-items:center; gap:12px; margin:24px 0; color:var(--text-light); font-size:12px; }
.auth-divider::before,.auth-divider::after { content:''; flex:1; height:1px; background:var(--border); }
.auth-other { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; }
.auth-other-btn { padding:10px; border:1px solid var(--border); border-radius:8px; text-align:center; font-size:12px; color:var(--text-secondary); cursor:pointer; transition:all 0.2s; background:#fff; }
.auth-other-btn:hover { border-color:var(--primary); color:var(--primary); background:var(--primary-light); }
.auth-other-btn:active { transform: scale(0.98); }
.auth-other-btn.linked { border-color:var(--success); color:var(--success); background:#f0fdf4; }
.auth-other-tip { margin-top:10px; font-size:12px; color:var(--text-light); text-align:center; line-height:1.6; }
.auth-hint { text-align:center; font-size:12px; color:var(--text-light); margin-top:20px; padding:12px; background:var(--bg); border-radius:var(--radius); line-height:1.8; }
.auth-hint a { color:var(--primary); font-weight:500; }
.auth-footer { text-align:center; font-size:12px; color:var(--text-light); margin-top:24px; }
.auth-footer a { color:var(--text-secondary); margin:0 6px; }
/* 登录被锁定 / 来源被限流时的常驻提示（2026-09-27b）。
与 .btn:disabled 配合：锁定期间按钮置灰，到点自动恢复。 */
.login-lock {
margin-top:12px; padding:10px 14px; border-radius:var(--radius);
background:#fff2f0; border:1px solid #ffccc7; color:var(--danger);
font-size:13px; line-height:1.6; text-align:center;
}
/* 还没锁、只是提醒「还剩几次」时用黄色底（学员端 / 管理端共用一套） */
.login-lock.warn {
background:#fffbe6; border-color:#ffe58f; color:#874d00;
}
.btn:disabled, .btn[disabled] { opacity:.55; cursor:not-allowed; }
/* 管理员登录页专属（橙色强调） */
.auth-page.admin-login .auth-brand-title span:not(.auth-badge) { color:#FF8A3D; }
.auth-page.admin-login .auth-feature-icon { background:linear-gradient(135deg,#FF6B1A,#FF8A3D); }
.auth-page.admin-login .btn-primary { background:linear-gradient(135deg,#FF6B1A 0%,#E55A10 100%); box-shadow:0 4px 12px rgba(255,107,26,0.3); }
.auth-page.admin-login .btn-primary:hover { background:linear-gradient(135deg,#E55A10 0%,#C84A00 100%); }
.auth-badge { display:inline-block; background:linear-gradient(135deg,#FF6B1A,#FF8A3D); color:#fff; font-size:12px; padding:4px 12px; border-radius:20px; margin-left:8px; font-weight:500; letter-spacing:1px; }
/* 移动端响应式登录 */
@media (max-width: 900px) {
.auth-brand { display:none; }
.auth-panel { width:100%; padding:20px; }
.auth-card { padding:36px 24px; border-radius:16px; }
.auth-page::before { width:300px; height:300px; top:-100px; right:-100px; }
}
@media (max-width: 480px) {
.auth-card-title { font-size:20px; }
.auth-card-logo img { height:44px; }
.auth-features-m { display:block !important; margin-top:20px; }
}
/* ========== 管理后台 ========== */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar { width: 220px; background: linear-gradient(180deg,#082E72 0%,#0A3A8F 100%); color: #fff; flex-shrink: 0; position: fixed; height: 100vh; transition: width 0.25s;
/* 纵向 flex：logo 固定顶部 / 菜单区自身滚动 / 收起按钮固定底部。
原先整条侧边栏 overflow-y:auto，菜单一长就把底部按钮挤出可视区，
所以必须把滚动下沉到 .admin-menu 这一层。 */
display: flex; flex-direction: column; overflow: hidden; }
.admin-logo { padding: 20px 8px; font-size: 17px; font-weight: 800; letter-spacing: 1px; text-align: center; border-bottom: 1px solid rgba(255,255,255,0.1); white-space: nowrap; }
.admin-logo img { height:24px; background:#fff; padding:2px 5px; border-radius:6px; flex-shrink:0; }
/* 收起/展开：固定在侧边栏底部的图标条（不再有文字）*/
.sidebar-toggle { flex: 0 0 auto; width: 100%; background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.7); border: none; border-top: 1px solid rgba(255,255,255,0.1); padding: 10px 0; cursor: pointer; transition: background 0.2s, color 0.2s;
display: flex; align-items: center; justify-content: center; line-height: 0; }
.sidebar-toggle .sb-ico { width: 18px; height: 18px; display: block; transition: transform 0.25s; }
/* 收起态：图标整体翻转，箭头指向内容区（=点击可展开）*/
.admin-layout.sb-collapsed .sidebar-toggle .sb-ico { transform: rotate(180deg); }
.sidebar-toggle:hover { color: #fff; background: rgba(255,255,255,0.14); }
/* ★ 2026-10-07（功能包 R）：侧边栏底部改为「工具条」—— 设置菜单 + 收起/展开 并排。
原先 .sidebar-toggle 独占整行；加设置入口后若仍叠两层，底部会占掉近百像素把菜单区挤没。
折叠按钮**仍是** .sidebar-toggle（收起态的图标旋转规则不受影响），
设置按钮单独用 .sidebar-cfg —— 否则它也会跟着一起转 180°。 */
.sidebar-tools { flex: 0 0 auto; display: flex; align-items: stretch; border-top: 1px solid rgba(255,255,255,0.1); }
.sidebar-tools .sidebar-toggle { flex: 1 1 0; width: auto; border-top: none; }
.sidebar-cfg { flex: 0 0 auto; background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.7);
border: none; border-right: 1px solid rgba(255,255,255,0.1); padding: 10px 14px; cursor: pointer;
display: flex; align-items: center; justify-content: center; line-height: 0; transition: background 0.2s, color 0.2s; }
.sidebar-cfg:hover { color: #fff; background: rgba(255,255,255,0.14); }
.sidebar-cfg .sb-ico { width: 18px; height: 18px; display: block; }
/* 「设置菜单显示隐藏」弹窗里的每一行 */
.mcfg-row { display: flex; align-items: center; gap: 10px; padding: 10px 4px; border-bottom: 1px solid #f0f0f0; }
.mcfg-row:last-child { border-bottom: none; }
.mcfg-ico { width: 22px; text-align: center; font-size: 16px; flex: 0 0 auto; }
.mcfg-name { flex: 1 1 auto; font-size: 14px; color: #262626; }
.mcfg-fixed { font-size: 12px; color: #bfbfbf; flex: 0 0 auto; }
/* 开关：纯 CSS 实现，不引第三方组件（本项目前端零构建、零依赖） */
.sw { position: relative; display: inline-block; width: 40px; height: 22px; flex: 0 0 auto; }
.sw input { opacity: 0; width: 0; height: 0; }
.sw .sw-track { position: absolute; inset: 0; background: #d9d9d9; border-radius: 11px; transition: background 0.2s; cursor: pointer; }
.sw .sw-track:before { content: ''; position: absolute; width: 18px; height: 18px; left: 2px; top: 2px;
background: #fff; border-radius: 50%; transition: transform 0.2s; box-shadow: 0 1px 3px rgba(0,0,0,.2); }
.sw input:checked + .sw-track { background: #52c41a; }
.sw input:checked + .sw-track:before { transform: translateX(18px); }
.sw input:disabled + .sw-track { background: #f0f0f0; cursor: not-allowed; }
/* 收起态：60px 图标栏 */
.admin-layout.sb-collapsed .admin-sidebar { width: 60px; }
.admin-layout.sb-collapsed .admin-main { margin-left: 60px; }
.admin-layout.sb-collapsed .admin-logo { font-size: 14px; padding: 18px 0; writing-mode: vertical-rl; text-orientation: upright; letter-spacing: 4px; margin: 0 auto; }
.admin-layout.sb-collapsed .admin-menu-item { padding: 14px 0; justify-content: center; font-size: 17px; }
.admin-layout.sb-collapsed .admin-menu-item .mt { display: none; }
.admin-menu .mt { flex: 1; }
.admin-menu { list-style: none; padding: 12px 0; flex: 1 1 auto; overflow-y: auto;
min-height: 0; scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.22) transparent; }
/* 深色侧边栏里默认的浅色滚动条很扎眼，换成细的白色半透明条 */
.admin-menu::-webkit-scrollbar { width: 6px; }
.admin-menu::-webkit-scrollbar-track { background: transparent; }
.admin-menu::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.18); border-radius: 3px; }
.admin-menu::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.32); }
.admin-menu-item { padding: 12px 20px; color: rgba(255,255,255,0.75); cursor: pointer; display: flex; align-items: center; gap: 10px; transition: all 0.2s; font-size: 14px; border-left:3px solid transparent; }
.admin-menu-item:hover { color: #fff; background: rgba(255,255,255,0.08); }
.admin-menu-item.active { color: #fff; background: linear-gradient(90deg,rgba(255,107,26,0.25) 0%,rgba(255,107,26,0.05) 100%); border-left-color:var(--accent); }
.admin-main { flex: 1; margin-left: 220px; }
.admin-topbar { height: 60px; background: var(--bg-white); box-shadow: var(--shadow); display: flex; justify-content: space-between; align-items: center; padding: 0 24px; position: sticky; top: 0; z-index: 50; }
.admin-content { padding: 24px; background: var(--bg); min-height: calc(100vh - 60px); }
.admin-page { display: none; }
.admin-page.active { display: block; }
/* 管理KPI卡片 */
.admin-kpi-row { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; margin-bottom: 24px; }
/* 2026-09-18h：KPI 由 4 张变 6 张（活跃率 / 从未学习）。<1500px 时 6 列会窄到读不出数字，
退成 3 列两行；<=1024px 由文末响应式段退成 2 列。 */
@media (max-width: 1500px) { .admin-kpi-row { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.admin-kpi { background: var(--bg-white); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow); }
.admin-kpi .kpi-value { font-size: 32px; font-weight: 700; color: var(--text); }
.admin-kpi .kpi-label { font-size: 13px; color: var(--text-light); margin-top: 4px; }
.admin-kpi .kpi-trend { font-size: 12px; margin-top: 8px; }
.kpi-trend.up { color: var(--success); }
.kpi-trend.down { color: var(--danger); }
.chart-row { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; margin-bottom: 20px; }
/* 驾驶舱栅格（2026-09-18h）：原布局用同一套 2fr/1fr 去装 2 个、3 个、2 个 chart-box，
结果是 trend 占满整行后 type 独占一行、level/asmt/hot 三个挤两列、dept 占满后 warn 独占 ——
三处都留下空格子。改成按内容定列：单图整行 / 三图三等分 / 两图二等分。 */
.chart-row-1 { grid-template-columns: 1fr; }
.chart-row-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.chart-row-2eq { grid-template-columns: repeat(2, minmax(0, 1fr)); }
/* 三图并排在 <1400px 会把「人才测评」的纵轴标签压没 → 退两列（<=1024px 由响应式段归一列） */
@media (max-width: 1400px) { .chart-row-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.chart-box { background: var(--bg-white); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow); }
.chart-title { font-size: 15px; font-weight: 600; margin-bottom: 16px; }
/* 管理表格 */
.table-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 12px; }
.table-filters { display: flex; gap: 8px; flex-wrap: wrap; }
.table-search { padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--radius); width: 240px; font-size: 13px; }
/* 课程中心筛选条：搜索 / 类型 / 分类 / 排序 —— 宽屏四件同一行，窄屏（≤480px）改两行。
用 grid 分配宽度：宽屏搜索框 minmax(0,1fr) 可收缩到 0、下拉吃内容宽度；
≤480px 时搜索框跨整行、3 个下拉平分等分轨道（见下面的 @media 块）。
旧版是 flex + 搜索框 min-width:200px + flex-wrap:wrap，窄屏必然把下拉挤到第二行。 */
.course-filter-bar { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 8px; align-items: center; margin-bottom: 16px; }
.course-filter-bar .course-filter-search { width: 100%; min-width: 0; }
.course-filter-bar .course-filter-select { width: auto; min-width: 0; max-width: 40vw; text-overflow: ellipsis; }
@media (max-width: 768px) {
.course-filter-bar { gap: 6px; margin-bottom: 12px; }
.course-filter-bar .form-input { padding: 9px 10px; font-size: 13px; }
/* 窄屏给下拉定宽：