/* ═══════════════════════════════════════
   阳光时代区培训系统 v5.0 - 样式表
   阳光保险企业风格 · 橙色主题 · 总部大楼封面
   三大类分组 + 学习路径模式 + 防作弊 + 团队信息展示
   ═══════════════════════════════════════ */

:root {
    --primary: #E87722;
    --primary-light: #FFF4EC;
    --primary-dark: #C56010;
    --accent: #E87722;
    --success: #2E7D32;
    --warning: #F9A825;
    --danger: #D32F2F;
    --text: #2C3E50;
    --text-light: #6B7C93;
    --bg: #F5F7FA;
    --white: #FFFFFF;
    --purple: #7B1FA2;
    --purple-light: #F3E5F5;
    --card-shadow: 0 2px 12px rgba(232,119,34,.08);
    --radius: 12px;
    --nav-height: 56px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    background: var(--bg); color: var(--text);
    line-height: 1.6; overflow-x: hidden;
}

/* ═══ 登录页（阳光保险风格） ═══ */
#view-login { min-height:100vh; display:flex; flex-direction:column; position:relative; overflow:hidden; }
.login-bg { position:absolute; inset:0; background:linear-gradient(135deg,#E87722 0%,#D96A18 40%,#C56010 100%); z-index:0; }
.login-bg::before { content:''; position:absolute; inset:0; background:radial-gradient(circle at 50% 20%,rgba(255,255,255,.12) 0%,transparent 55%); }
.login-hq-img { width:100%; height:auto; max-height:42vh; object-fit:cover; object-position:center bottom; z-index:1; display:block; padding:28px 0 20px 0; box-sizing:border-box; }
.login-card { position:relative; z-index:2; width:100%; background:rgba(255,255,255,.97); backdrop-filter:blur(16px); border-radius:0 0 24px 24px; padding:36px 28px 28px; box-shadow:0 8px 30px rgba(0,0,0,.12); }
.logo-area { text-align:center; margin-bottom:28px; }
.logo-area h1 { font-size:22px; color:var(--primary); font-weight:800; letter-spacing:1px; }
.logo-slogan { font-size:14px; color:var(--text-light); margin-top:6px !important; font-weight:600; letter-spacing:3px; }
.input-group { display:flex; align-items:center; gap:10px; background:var(--bg); border-radius:10px; padding:3px 14px; margin-bottom:14px; border:1.5px solid transparent; transition:border-color .2s; }
.input-group:focus-within { border-color:var(--primary); background:#fff; }
.input-group input { flex:1; border:none; outline:none; background:none; padding:13px 0; font-size:15px; color:var(--text); }
.input-icon { font-size:18px; opacity:.5; }
.btn-primary { background:linear-gradient(135deg,#E87722,#D96A18); color:white; border:none; border-radius:10px; padding:14px 24px; font-size:16px; font-weight:600; cursor:pointer; transition:transform .15s; display:inline-flex; align-items:center; justify-content:center; gap:6px; }
.btn-primary:active { transform:scale(.97); }
.btn-secondary { background:var(--bg); color:var(--text-light); border:1.5px solid #ddd; border-radius:10px; padding:13px 22px; font-size:15px; cursor:pointer; }
.btn-full { width:100%; }
.btn-large { padding:16px 28px; font-size:17px; }
.btn-sm { background:#E87722; color:white; border:none; border-radius:8px; padding:8px 16px; font-size:13px; cursor:pointer; }
.btn-danger { background:var(--danger); color:white; }
.login-hint { text-align:center; font-size:12px; color:var(--text-light); margin-top:16px; line-height:1.8; }
.hint-sm { font-size:11px; color:#999; margin-top:4px; }
.error-text { text-align:center; color:var(--danger); font-size:13px; margin-top:12px; }

/* ═══ 主框架 ═══ */
.hidden { display:none !important; }
.top-bar { position:sticky; top:0; z-index:100; background:var(--white); padding:14px 18px; display:flex; align-items:center; justify-content:space-between; box-shadow:0 1px 8px rgba(0,0,0,.06); }
.top-bar h2 { font-size:17px; font-weight:700; color:var(--primary); }
.role-badge { font-size:12px; padding:3px 10px; border-radius:20px; font-weight:600; }
.role-admin { background:#E8F5E9; color:var(--success); }
.role-manager { background:#FFF3E0; color:var(--accent); }
.role-member { background:var(--primary-light); color:var(--primary); }
.btn-logout { background:none; border:1.5px solid #ddd; border-radius:8px; padding:4px 12px; font-size:12px; color:var(--text-light); cursor:pointer; margin-left:8px; }
.btn-logout:active { border-color:var(--danger); color:var(--danger); }
.page-content { padding:14px 16px calc(var(--nav-height)+80px); max-width:600px; margin:0 auto; }
.view:not(.active) { display:none !important; }

/* ═══ 首页欢迎横幅（阳光风格） ═══ */
.welcome-banner { background:linear-gradient(135deg,#E87722,#D96A18); border-radius:var(--radius); padding:22px 20px; color:white; margin-bottom:14px; position:relative; overflow:hidden; }
.welcome-banner::after { content:''; position:absolute; right:-20px; bottom:-20px; width:100px; height:100px; background:rgba(255,255,255,.1); border-radius:50%; }
.welcome-text span { font-size:20px; font-weight:700; display:block; }
.welcome-text small { font-size:13px; opacity:.85; margin-top:4px; display:block; }

/* 三大类分组 */
.category-group-section { margin-bottom:24px; }
.category-group-header { display:flex; align-items:center; gap:8px; margin-bottom:12px; padding:12px 16px; background:var(--white); border-radius:var(--radius); box-shadow:var(--card-shadow); flex-wrap:wrap; }
.category-group-icon { font-size:20px; }
.category-group-label { font-size:16px; font-weight:700; color:var(--primary); }
.category-group-desc { font-size:12px; color:var(--text-light); flex:1; }
.group-guide-tip { background:var(--primary-light); border:2px solid var(--primary); border-radius:10px; padding:10px 14px; font-size:13px; color:var(--primary); font-weight:600; margin-bottom:12px; line-height:1.5; }

/* 课件/文章链接 */
.article-link-box { background:var(--white); border-radius:var(--radius); padding:20px; box-shadow:var(--card-shadow); text-align:center; }
.article-link-box .btn-primary { margin-bottom:8px; }
.article-link-box a.tag { cursor:pointer; }

/* 视频引导 - 红点计划 */
.video-placeholder { background:var(--primary-light); border-radius:var(--radius); padding:40px 20px; text-align:center; border:2px solid var(--primary); }
.video-placeholder .placeholder-icon { font-size:48px; margin-bottom:8px; }
.video-placeholder p { font-size:14px; font-weight:600; color:var(--primary); }
.video-placeholder .hint-text { font-size:12px; color:var(--text-light); margin-top:4px; font-weight:400; }

/* 学习进度条 */
.progress-bar-wrap { background:var(--white); border-radius:var(--radius); padding:14px 16px; box-shadow:var(--card-shadow); margin-bottom:14px; }
.progress-bar { height:24px; background:#E8ECEF; border-radius:12px; overflow:hidden; position:relative; }
.progress-bar-inner { height:100%; background:linear-gradient(90deg,var(--success),#4CAF50); border-radius:12px; min-width:28px; transition:width .6s ease; color:white; font-size:13px; font-weight:700; display:flex; align-items:center; justify-content:center; }
.progress-text { font-size:13px; color:var(--text-light); margin-top:8px; line-height:1.5; }
.progress-text strong { color:var(--success); font-size:15px; }

/* 推荐下一课 */
.next-course-tip { background:var(--white); border-radius:var(--radius); box-shadow:var(--card-shadow); margin-bottom:14px; border:2px solid var(--primary); }
.next-tip-inner { padding:14px 16px; display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.next-tip-label { font-size:14px; font-weight:700; color:var(--primary); }
.next-tip-title { font-size:14px; color:var(--text); flex:1; }
.next-tip-inner.all-learned { text-align:center; font-size:15px; font-weight:700; color:var(--success); padding:14px; }
.next-tip-link { display:inline-block; background:#FFF3E0; color:#E87722; border-radius:8px; padding:6px 14px; font-size:13px; text-decoration:none; border:1px solid #FFE0B2; }

/* 学习路径序号 */
.learning-path-num { font-size:11px; font-weight:700; color:var(--primary); background:var(--primary-light); padding:2px 10px; border-radius:4px; display:inline-block; margin-bottom:6px; }

/* 学习状态标签 */
.learning-status { font-size:13px; font-weight:700; padding:3px 10px; border-radius:20px; }
.learning-status.passed { background:#E8F5E9; color:var(--success); }
.learning-status.failed { background:#FFEBEE; color:var(--danger); }
.learning-status.pending { background:#FFF3E0; color:var(--warning); }

/* 已通过的课程卡片 */
.course-done { opacity:0.85; border-left:4px solid var(--success); }
.course-failed { border-left:4px solid var(--danger); }
.section-title { font-size:15px; font-weight:700; color:var(--text); margin-bottom:12px; }
.card-list { display:flex; flex-direction:column; gap:12px; }
.course-card, .result-card, .user-card, .admin-course-card { background:var(--white); border-radius:var(--radius); padding:16px 18px; box-shadow:var(--card-shadow); cursor:pointer; transition:transform .15s; display:flex; flex-direction:column; gap:8px; }
.course-card:active { transform:scale(.98); }
.course-card-title { font-size:16px; font-weight:700; color:var(--text); }
.course-card-desc { font-size:13px; color:var(--text-light); line-height:1.5; }
.course-card-meta { display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
.tag { display:inline-flex; align-items:center; padding:3px 10px; border-radius:20px; font-size:12px; font-weight:500; }
.tag-blue { background:var(--primary-light); color:var(--primary); }
.tag-green { background:#E8F5E9; color:var(--success); }
.tag-orange { background:#FFF3E0; color:var(--accent); }
.tag-gray { background:#F0F0F0; color:#888; }
.tag-purple { background:var(--purple-light); color:var(--purple); }
.source-tag { font-size:12px; opacity:.7; margin-top:4px; }

/* ═══ 课程详情 ═══ */
.course-header { background:linear-gradient(135deg,#E87722,#D96A18); border-radius:var(--radius); padding:22px 20px; color:white; margin-bottom:16px; }
.course-header h3 { font-size:18px; margin-bottom:6px; }
.course-header p { font-size:13px; opacity:.85; line-height:1.5; }
.sub-title { font-size:15px; font-weight:700; margin:18px 0 10px; }
.video-section { margin-bottom:8px; }
.hint-text { font-size:12px; color:var(--text-light); margin-top:4px; }
.video-wrap iframe { width:100%; height:200px; border-radius:var(--radius); }
.exam-section { margin-top:8px; padding-bottom:80px; }
.exam-section-title { font-size:17px; font-weight:700; color:var(--primary); text-align:center; padding:12px 0 8px; margin-top:8px; border-bottom:2px solid var(--primary); }
.exam-info-bar { display:flex; justify-content:space-between; align-items:center; padding:10px 14px; background:var(--primary-light); border-radius:10px; font-size:13px; font-weight:600; color:var(--primary); margin-bottom:12px; }
.exam-done-banner { background:var(--white); border-radius:var(--radius); padding:40px 20px; text-align:center; box-shadow:var(--card-shadow); }
.exam-done-icon { font-size:48px; }
.score-big { font-size:32px; font-weight:800; color:var(--primary); }
.pct-big { font-size:16px; color:var(--text-light); }

/* 答题卡 */
.q-item { background:var(--white); border-radius:var(--radius); padding:16px; margin-bottom:12px; box-shadow:var(--card-shadow); animation:fadeInUp .3s ease both; }
@keyframes fadeInUp { from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:none} }
.q-num { font-size:11px; font-weight:700; color:var(--primary); background:var(--primary-light); padding:2px 8px; border-radius:4px; display:inline-block; margin-bottom:8px; }
.q-type-badge { font-size:11px; color:var(--purple); background:var(--purple-light); padding:2px 8px; border-radius:4px; margin-left:6px; }
.q-text { font-size:14px; font-weight:600; color:var(--text); line-height:1.55; margin-bottom:12px; }
.q-options { display:flex; flex-direction:column; gap:8px; }
.q-opt { display:flex; align-items:center; gap:10px; padding:11px 14px; border-radius:10px; border:1.5px solid #E0E4E8; cursor:pointer; transition:all .15s; font-size:14px; color:var(--text); user-select:none; -webkit-tap-highlight-color:transparent; }
.q-opt.selected { border-color:var(--primary); background:var(--primary-light); color:var(--primary); font-weight:600; }
.q-opt.selected::before { content:'✓ '; }
.q-opt-letter { width:26px; height:26px; border-radius:50%; background:var(--bg); display:flex; align-items:center; justify-content:center; font-size:13px; font-weight:700; color:var(--text-light); flex-shrink:0; }
.q-opt.selected .q-opt-letter { background:var(--primary); color:white; }
.tf-options { display:flex; gap:10px; }
.tf-options .q-opt { flex:1; justify-content:center; text-align:center; font-weight:600; }

/* ═══ 成绩页 ═══ */
.stats-row { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-bottom:18px; }
.stat-card { background:var(--white); border-radius:var(--radius); padding:16px 12px; text-align:center; box-shadow:var(--card-shadow); }
.stat-num { font-size:26px; font-weight:800; color:var(--primary); }
.stat-num.green { color:var(--success); }
.stat-num.orange { color:var(--warning); }
.stat-label { font-size:12px; color:var(--text-light); margin-top:2px; }
.result-card { flex-direction:row; align-items:center; justify-content:space-between; }
.result-score { font-size:24px; font-weight:800; }
.result-score.pass { color:var(--success); }
.result-score.fail { color:var(--danger); }
.result-info { text-align:right; }
.result-info .course-name { font-size:14px; font-weight:600; }
.result-info .date { font-size:12px; color:var(--text-light); }

/* ═══ 考试状况页 ═══ */
.monitor-stats-row { display:grid; grid-template-columns:repeat(5,1fr); gap:8px; margin-bottom:16px; }
.monitor-stat { background:var(--white); border-radius:var(--radius); padding:12px 8px; text-align:center; box-shadow:var(--card-shadow); }
.monitor-stat-num { font-size:22px; font-weight:800; color:var(--primary); display:block; }
.monitor-stat-num.green { color:var(--success); }
.monitor-stat-num.orange { color:var(--warning); }
.monitor-stat-label { font-size:11px; color:var(--text-light); }

/* 未考提醒 */
.pending-section { margin-bottom:16px; }
.pending-banner { background:var(--white); border-radius:var(--radius); padding:16px 18px; box-shadow:var(--card-shadow); border:2px solid var(--warning); }
.pending-banner.all-done { border-color:var(--success); border-width:2px; }
.pending-title { font-size:15px; font-weight:700; color:var(--warning); margin-bottom:10px; }
.pending-banner.all-done .pending-title { color:var(--success); }
.pending-list { display:flex; flex-direction:column; gap:4px; }
.pending-item { display:flex; align-items:center; gap:8px; font-size:13px; }
.pending-name { font-weight:600; color:var(--text); }
.pending-dept { font-size:12px; color:var(--text-light); }
.pending-course { font-size:12px; color:var(--accent); font-weight:500; }

/* 课程完成率 */
.tracking-course-stats { display:flex; flex-direction:column; gap:6px; margin-bottom:16px; }
.tracking-course-stat { background:var(--white); border-radius:10px; padding:10px 14px; box-shadow:var(--card-shadow); display:flex; align-items:center; justify-content:space-between; }
.course-stat-name { font-size:13px; font-weight:600; color:var(--text); flex:1; }
.course-stat-rate { font-size:13px; font-weight:700; color:var(--primary); }
.course-stat-rate.green { color:var(--success); }
.course-stat-rate.orange { color:var(--warning); }
.course-stat-avg { font-size:12px; color:var(--text-light); }

/* 追踪矩阵 */
.tracking-matrix-grid { overflow-x:auto; }
.matrix-header-row, .matrix-member-row { display:flex; gap:0; min-width:100%; border-bottom:1px solid #eee; }
.matrix-header-row { background:var(--primary-light); font-weight:700; font-size:11px; color:var(--primary); }
.matrix-member-row { font-size:13px; }
.matrix-member-row:nth-child(even) { background:#f9fafb; }
.matrix-cell { padding:8px 6px; text-align:center; border-right:1px solid #eee; flex-shrink:0; }
.name-cell { width:70px; text-align:left; font-weight:600; }
.rank-cell { width:40px; font-size:11px; color:var(--text-light); }
.course-cell { width:50px; min-width:50px; font-size:11px; cursor:pointer; }
.manager-tag-sm { font-size:10px; background:var(--warning); color:white; padding:1px 4px; border-radius:3px; }
.cell-done-pass { background:#E8F5E9; color:var(--success); font-weight:700; }
.cell-done-fail { background:#FFEBEE; color:var(--danger); font-weight:700; }
.cell-pending { background:#FFF3E0; color:var(--warning); font-weight:700; font-size:14px; }
.dept-group { margin-bottom:16px; }
.dept-header { font-size:15px; font-weight:700; color:var(--primary); background:var(--primary-light); padding:8px 14px; border-radius:8px; margin-bottom:8px; }
.dept-members { }
.monitor-row { background:var(--white); border-radius:8px; padding:10px 14px; margin-bottom:4px; box-shadow:var(--card-shadow); display:grid; grid-template-columns:1fr auto auto auto auto; align-items:center; gap:8px; font-size:13px; cursor:pointer; transition:transform .1s; }
.monitor-row:active { transform:scale(.98); }
.monitor-row-header { font-weight:700; color:var(--text-light); background:var(--bg); font-size:12px; cursor:default; }
.member-name-col { font-weight:600; }
.member-rank-col { color:var(--text-light); }
.member-hire-col { color:var(--text-light); font-size:12px; }
.status-done { color:var(--success); font-weight:600; }
.status-pending { color:var(--warning); font-weight:600; }
.score-val { font-weight:700; }
.score-val.pass { color:var(--success); }
.score-val.fail { color:var(--danger); }
.score-na { color:#ccc; }

/* ═══ 管理员面板 ═══ */
.admin-stats { display:grid; grid-template-columns:repeat(2,1fr); gap:10px; margin-bottom:16px; }
.admin-stat-card { background:var(--white); border-radius:var(--radius); padding:16px; box-shadow:var(--card-shadow); text-align:center; }
.admin-stat-num { font-size:28px; font-weight:800; color:var(--primary); }
.admin-stat-label { font-size:12px; color:var(--text-light); }
.tab-bar { display:flex; gap:4px; background:var(--white); border-radius:10px; padding:4px; margin-bottom:14px; box-shadow:var(--card-shadow); overflow-x:auto; }
.tab { flex:1; text-align:center; padding:10px 8px; font-size:13px; font-weight:600; color:var(--text-light); border-radius:8px; cursor:pointer; white-space:nowrap; transition:all .2s; }
.tab.active { background:var(--primary); color:white; }
.tab-panel { display:none; }
.tab-panel.active { display:block; }
.toolbar { display:flex; gap:8px; margin-bottom:14px; flex-wrap:wrap; }
.toolbar select { padding:8px 14px; border:1.5px solid #ddd; border-radius:8px; font-size:14px; background:var(--bg); color:var(--text); flex:1; }
.admin-course-card { position:relative; }
.admin-course-card .card-actions { position:absolute; top:12px; right:12px; display:flex; gap:6px; }
.action-btn { background:var(--bg); border:none; border-radius:6px; padding:4px 10px; font-size:12px; cursor:pointer; color:var(--text-light); }
.action-btn:hover { color:var(--primary); background:var(--primary-light); }
.action-btn.del { color:var(--danger); }

/* 成员统计表格 */
.member-stats-table { width:100%; overflow-x:auto; }
.member-row { background:var(--white); border-radius:var(--radius); padding:14px 16px; margin-bottom:8px; box-shadow:var(--card-shadow); display:grid; grid-template-columns:auto 1fr auto auto auto auto; align-items:center; gap:10px; }
.member-row-header { font-weight:700; color:var(--text-light); background:var(--bg); font-size:12px; }
.member-avatar { width:38px; height:38px; border-radius:50%; background:var(--primary); color:white; display:flex; align-items:center; justify-content:center; font-weight:700; font-size:15px; }
.member-name { font-weight:600; font-size:14px; }
.member-rank { font-size:12px; color:var(--text-light); }
.member-hire { font-size:12px; color:var(--text-light); }
.member-exams { font-size:13px; color:var(--text-light); text-align:center; }
.member-pct { font-weight:700; font-size:13px; text-align:center; color:var(--primary); }
.member-pct.low { color:var(--danger); }
.member-pct.mid { color:var(--warning); }
.user-card { flex-direction:row; align-items:center; justify-content:space-between; }
.user-info { display:flex; align-items:center; gap:10px; }
.user-avatar { width:36px; height:36px; border-radius:50%; background:var(--primary-light); color:var(--primary); display:flex; align-items:center; justify-content:center; font-weight:700; font-size:14px; }
.user-avatar-manager { background:var(--warning); color:white; }
.user-detail .name { font-weight:600; font-size:14px; }
.user-detail .role { font-size:12px; color:var(--text-light); }
.manager-tag { font-size:11px; background:var(--warning); color:white; padding:1px 6px; border-radius:4px; margin-left:4px; }

/* ═══ 弹窗 ═══ */
.modal { position:fixed; inset:0; z-index:999; display:flex; align-items:center; justify-content:center; padding:20px; }
.modal-mask { position:absolute; inset:0; background:rgba(0,0,0,.45); }
.modal-body { position:relative; z-index:1; width:100%; max-width:420px; max-height:85vh; overflow-y:auto; background:var(--white); border-radius:18px; padding:24px 22px; box-shadow:0 20px 60px rgba(0,0,0,.2); animation:modalIn .25s ease both; }
@keyframes modalIn { from{opacity:0;transform:scale(.95)} to{opacity:1;transform:none} }
.modal-lg { max-width:500px; }
.modal-body h3 { font-size:18px; font-weight:700; margin-bottom:18px; }
.modal-body label { display:block; margin-bottom:12px; }
.modal-body label > :first-child { display:block; font-size:13px; font-weight:600; margin-bottom:5px; }
.modal-body input, .modal-body textarea, .modal-body select { width:100%; padding:10px 14px; border:1.5px solid #ddd; border-radius:10px; font-size:14px; outline:none; font-family:inherit; color:var(--text); background:var(--bg); }
.modal-body input:focus, .modal-body textarea:focus { border-color:var(--primary); background:#fff; }
.modal-btns { display:flex; gap:10px; margin-top:20px; }
.modal-btns button { flex:1; }
.text-center { text-align:center; }

/* 成员详情弹窗 */
.detail-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-bottom:16px; }
.detail-grid div { background:var(--bg); border-radius:8px; padding:10px 14px; }
.detail-grid label { font-size:12px; color:var(--text-light); display:block; margin-bottom:2px; }
.detail-grid span { font-size:14px; font-weight:600; }
.detail-actions { margin-top:12px; text-align:center; }

/* 考试结果弹窗 */
.result-circle { width:120px; height:120px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:36px; font-weight:800; color:white; margin:0 auto 16px; background:conic-gradient(var(--primary) 0deg,var(--primary) var(--p),#e0e0e0 var(--p),#e0e0e0 360deg); }
.result-circle.pass { background:conic-gradient(var(--success) 0deg,var(--success) var(--p),#e0e0e0 var(--p),#e0e0e0 360deg); }
.result-circle.fail { background:conic-gradient(var(--danger) 0deg,var(--danger) var(--p),#e0e0e0 var(--p),#e0e0e0 360deg); }
#result-title { font-size:20px; font-weight:700; margin-bottom:6px; }
#result-detail { font-size:14px; color:var(--text-light); margin-bottom:20px; line-height:1.6; }

/* ═══ 底部导航 ═══ */
.bottom-nav { position:fixed; bottom:0; left:0; right:0; z-index:100; background:var(--white); border-top:1px solid #eee; display:flex; justify-content:space-around; padding:6px 0 env(safe-area-inset-bottom,0); box-shadow:0 -2px 12px rgba(0,0,0,.06); }
.nav-item { display:flex; flex-direction:column; align-items:center; gap:2px; padding:6px 12px; text-decoration:none; color:var(--text-light); font-size:11px; font-weight:500; transition:color .2s; }
.nav-item .nav-icon { font-size:21px; }
.nav-item.active { color:var(--primary); }

/* ═══ 工具类 ═══ */
.empty-state { text-align:center; padding:50px 20px; color:var(--text-light); }
.empty-state .empty-icon { font-size:52px; margin-bottom:10px; }
.empty-state p { font-size:14px; }
::-webkit-scrollbar { width:4px; }
::-webkit-scrollbar-thumb { background:#ccc; border-radius:4px; }

@media (min-width:768px) {
    .page-content { max-width:650px; }
    .monitor-stats-row { grid-template-columns:repeat(5,1fr); }
    .modal-body { max-width:520px; }
}

/* 题型分组标题颜色 */
.exam-section-title.section-choice { color: #1a73e8; border-bottom-color: #1a73e8; }
.exam-section-title.section-multi { color: #2e7d32; border-bottom-color: #2e7d32; }
.exam-section-title.section-judge { color: #e65100; border-bottom-color: #e65100; }

/* 题型标签颜色 */
.q-type-badge.badge-choice { background: #e3f2fd; color: #1a73e8; }
.q-type-badge.badge-multi { background: #e8f5e9; color: #2e7d32; }
.q-type-badge.badge-judge { background: #fff3e0; color: #e65100; }

/* 多选题选项样式 */
.q-opt.q-opt-multi.selected {
    background: #e8f5e9 !important;
    border-color: #2e7d32 !important;
    color: #1b5e20;
}
.q-opt.q-opt-multi.selected .q-opt-letter {
    background: #2e7d32 !important;
    color: #fff !important;
    border-color: #2e7d32 !important;
}