/* o3.css — 公共样式（v2.0 绿色系） */
:root {
  --primary: #2E8B57; --primary-dark: #267349; --primary-light: #3CB371;
  --bg: #F0FAF4; --card: #FFFFFF; --text: #2D3748; --text-2: #718096;
  --border: #E2E8F0; --green-bg: #E8F5EE; --danger: #E53E3E; --warn: #E8913A;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.6; }

#app-main { display: flex; min-height: 100vh; }
.main-content { flex: 1; padding: 28px; overflow-y: auto; }
.page-section { max-width: 1100px; margin: 0 auto; }
.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.page-title { font-size: 22px; font-weight: 700; }
.page-head-info { color: var(--text-2); font-size: 14px; }

/* 看板卡片 */
.dash-cards { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; }
.dash-card { flex: 1 1 160px; }
.dash-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; text-align: center; box-shadow: 0 2px 8px rgba(46,139,87,0.05); }
.dash-val { font-size: 28px; font-weight: 800; }
.dash-label { color: var(--text-2); margin-top: 6px; font-size: 14px; }
.dash-empty-tip { color: var(--text-2); font-size: 13px; text-align: center; }

/* 机构设置横排卡片网格 */
.inst-card-grid { display: flex; flex-wrap: wrap; gap: 16px; }
.inst-info-card { flex: 1 1 180px; }
.inst-info-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; box-shadow: 0 2px 8px rgba(46,139,87,0.05); }
.inst-info-label { color: var(--text-2); font-size: 14px; margin-bottom: 6px; }
.inst-info-val { font-size: 16px; font-weight: 600; color: var(--text); }

/* 表格 */
.data-table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
.data-table th { text-align: left; padding: 8px 10px; background: var(--green-bg); color: var(--primary-dark); font-size: 13px; font-weight: 600; }
.data-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 13px; }

/* 学员树 */
.stu-tree { display: flex; flex-direction: column; gap: 16px; }
.stu-teacher-group { background: #F4FAF7; border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; margin-bottom: 16px; }
.stu-teacher-head { font-weight: 700; font-size: 15px; color: #267349; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.stu-class { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; margin-bottom: 12px; }
.stu-class-head { font-weight: 700; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.stu-class-meta { color: var(--text-2); font-weight: 400; font-size: 13px; }
.stu-class-actions { margin-left: auto; }
.stu-list { padding: 6px 0 2px; overflow-x: auto; }
.stu-section-title { font-size: 15px; margin: 0 0 8px; }
.stu-class { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.stu-class-head { font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.stu-class-count { color: var(--text-2); font-weight: 400; font-size: 13px; }
.stu-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 8px; cursor: pointer; }
.stu-item:hover { background: var(--green-bg); }
.stu-name { font-weight: 600; min-width: 80px; }
.stu-meta { color: var(--text-2); flex: 1; }
.stu-empty { color: var(--text-2); padding: 16px; text-align: center; }

/* 标签/按钮 */
.tag { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 13px; font-weight: 500; }
.tag-green { background: var(--green-bg); color: var(--primary); border: 1px solid #B7E4C7; }
.tag-gray { background: #F1F3F5; color: #868E96; border: 1px solid #DEE2E6; }
.tag-red { background: #FFF5F5; color: var(--danger); border: 1px solid #FEB2B2; }
.inst-btn-green { padding: 8px 16px; border: none; border-radius: 8px; background: linear-gradient(135deg, #2E8B57 0%, #267349 100%); color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; box-shadow: 0 2px 8px rgba(46,139,87,0.25); }
.inst-btn-green:hover { opacity: 0.92; }
.inst-btn-red { padding: 8px 14px; border: 1px solid var(--danger); border-radius: 8px; background: #fff; color: var(--danger); font-size: 14px; cursor: pointer; }
.inst-btn-red:hover { background: #FFF5F5; }
.inst-btn-sm { padding: 6px 12px; font-size: 13px; margin-left: 6px; }
.text-center { text-align: center; }

/* toast */
.toast { position: fixed; top: 20px; right: 20px; padding: 12px 24px; border-radius: 8px; font-size: 15px; z-index: 9999; color: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.15); }

/* 错误提示 */
.error-text { color: var(--danger); font-size: 15px; margin-top: 12px; text-align: center; }

/* 业务报表 / 学习力诊断 新增样式（绿色系，横排） */
.inst-input { padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; color: var(--text); background: #fff; min-width: 120px; }
.inst-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 2px rgba(46,139,87,0.15); }
.inst-btn-ghost { padding: 6px 12px; border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text-2); font-size: 13px; cursor: pointer; }
.inst-btn-ghost:hover { background: var(--green-bg); color: var(--primary); }
.rep-actions { display: flex; align-items: center; gap: 10px; }
.rep-table-wrap { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.rep-table { width: 100%; border-collapse: collapse; }
.rep-table th { text-align: left; padding: 12px 14px; background: var(--green-bg); color: var(--primary-dark); font-size: 14px; font-weight: 600; white-space: nowrap; }
.rep-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 14px; }
.rep-empty { color: var(--text-2); text-align: center; padding: 24px; }
.diag-filter { margin-bottom: 16px; }
.diag-list { display: flex; flex-wrap: wrap; gap: 16px; }
.diag-card { flex: 1 1 280px; }
.diag-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 18px; box-shadow: 0 2px 8px rgba(46,139,87,0.05); }
.diag-card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.diag-score { font-size: 16px; font-weight: 700; color: var(--primary); }
.diag-class { color: var(--text-2); font-size: 13px; }
.diag-dims { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.diag-dim { flex: 1 1 0; min-width: 70px; }
.diag-dim { background: var(--green-bg); border-radius: 8px; padding: 8px 10px; text-align: center; }
.diag-dim-label { display: block; color: var(--text-2); font-size: 13px; }
.diag-dim-val { display: block; font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-top: 2px; }
.diag-summary { font-size: 14px; line-height: 1.6; color: var(--text); margin-bottom: 8px; }
.diag-suggestion { font-size: 14px; line-height: 1.6; color: var(--text-2); background: var(--bg); border-radius: 8px; padding: 8px 12px; }
.diag-empty { color: var(--text-2); text-align: center; padding: 40px; }
.diag-add-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; margin-bottom: 20px; box-shadow: 0 2px 8px rgba(46,139,87,0.05); }
.diag-add-card h3 { font-size: 16px; margin-bottom: 14px; color: var(--primary-dark); }
.diag-form-row { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.diag-form-row label { min-width: 72px; font-size: 14px; color: var(--text-2); }
.diag-form-row .inst-input { flex: 1; min-width: 0; }
.diag-add-actions { display: flex; gap: 10px; margin-top: 10px; }

/* ===== 机构设置 Tab ===== */
.inst-tabs { display: flex; gap: 8px; margin-bottom: 18px; border-bottom: 1px solid var(--border); }
.inst-tab { padding: 10px 18px; font-size: 15px; color: var(--text-2); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.inst-tab:hover { color: var(--primary); }
.inst-tab.active { color: var(--primary-dark); font-weight: 700; border-bottom-color: var(--primary); }
.inst-tab-content { min-height: 120px; }
.inst-class-entry { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 24px; text-align: center; color: var(--text-2); }
.inst-class-entry p { margin-bottom: 14px; font-size: 15px; }

/* ===== 作业布置 / 批改 ===== */
.hw-form-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 24px; max-width: 560px; box-shadow: 0 2px 8px rgba(46,139,87,0.05); }
.form-row { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.form-row label { min-width: 96px; font-size: 14px; color: var(--text-2); }
.form-row input, .form-row select, .form-row textarea { flex: 1; min-width: 0; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; color: var(--text); background: #fff; font-family: inherit; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 2px rgba(46,139,87,0.15); }
.form-row textarea { resize: vertical; }
.hw-table-wrap { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.hw-table { width: 100%; border-collapse: collapse; }
.hw-table th { text-align: left; padding: 12px 14px; background: var(--green-bg); color: var(--primary-dark); font-size: 14px; font-weight: 600; white-space: nowrap; }
.hw-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 14px; }
.hw-modal { position: fixed; inset: 0; background: rgba(45,55,72,0.45); display: flex; align-items: center; justify-content: center; z-index: 9998; }
.hw-modal-box { background: #fff; border-radius: 16px; padding: 28px; width: 440px; max-width: 92vw; max-height: 88vh; overflow-y: auto; box-shadow: 0 12px 40px rgba(0,0,0,0.2); }
.hw-modal-box h3 { font-size: 17px; margin-bottom: 18px; color: var(--primary-dark); }
.hw-modal-actions { display: flex; gap: 12px; margin-top: 18px; align-items: center; }

/* === SOE 四维评分卡（v3.1 作业批改页） === */
.soe-score-title { font-weight: 600; color: var(--primary); margin: 14px 0 8px; }
.soe-dim-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 8px; }
.soe-dim-card { flex: 1 1 140px; }
.soe-dim-card { background: var(--green-bg); border-radius: 8px; padding: 10px 12px; }
.soe-dim-label { font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.soe-dim-bar { height: 8px; background: #e2e8f0; border-radius: 4px; overflow: hidden; }
.soe-dim-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--primary-light), var(--primary)); border-radius: 4px; }
.soe-dim-score { font-size: 18px; font-weight: 700; color: var(--primary); margin-top: 4px; }
.soe-total { font-size: 15px; margin: 6px 0 10px; color: var(--text); }
.soe-total b { font-size: 20px; color: var(--primary); }
.hw-grade-section { font-size: 14px; color: var(--text-2); background: #f7fafc; border-radius: 6px; padding: 8px 10px; margin-bottom: 10px; }
.hw-quick-comments { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.quick-cmt { border: 1px solid var(--border); background: #fff; color: var(--text-2); border-radius: 14px; padding: 4px 10px; font-size: 13px; cursor: pointer; }
.quick-cmt:hover { border-color: var(--primary); color: var(--primary); }
.hw-grade-box { max-width: 520px; max-height: 88vh; overflow-y: auto; }

/* 学习力诊断 V2 集成 */
.diag-v2-box { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 18px; }
.diag-v2-card { flex: 1 1 240px; }
.diag-v2-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.diag-v2-card h3 { margin: 0 0 10px; color: var(--primary-dark); font-size: 15px; }
.diag-v2-card p { font-size: 14px; color: var(--text-2); margin: 0 0 12px; line-height: 1.6; }
.diag-sync-tip { font-size: 13px; color: var(--text-2); margin-top: 10px; }
.diag-push-item { display: block; font-size: 14px; color: var(--text); margin-bottom: 8px; cursor: pointer; }
.diag-push-channels { font-size: 13px; color: var(--text-2); margin: 8px 0 12px; }
@media (max-width: 768px) { .diag-v2-box { grid-template-columns: 1fr; } }

/* 学员详情抽屉 Tab */
.stu-drawer-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 8px; }
.stu-tab { padding: 8px 12px; font-size: 14px; color: var(--text-2); cursor: pointer; border-bottom: 2px solid transparent; }
.stu-tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.stu-tab-pane { animation: fadeIn .2s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ===== 移动端响应式（P3-2：表格横滑不竖排）===== */
@media (max-width: 820px) {
  .main-content { padding: 14px; }
  .page-section { max-width: 100%; }
  .dash-cards, .inst-card-grid, .diag-list, .diag-dims { grid-template-columns: 1fr 1fr; }
  .data-table, .rep-table, .hw-table { display: block; width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; white-space: nowrap; }
  .data-table thead, .rep-table thead, .hw-table thead { display: table-header-group; }
  .data-table tbody, .rep-table tbody, .hw-table tbody { display: table-row-group; }
  .data-table th, .data-table td, .rep-table th, .rep-table td, .hw-table th, .hw-table td { white-space: nowrap; }
  .inst-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .inst-tab { flex-shrink: 0; }
  .page-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .hw-modal-box, .hw-grade-box { width: 92vw; }
}

/* 平台端卡片网格 */
.plat-cards { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 18px; }
.plat-card { flex: 1 1 160px; }
.plat-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; text-align: center; }
.plat-card-label { font-size: 14px; color: var(--text-2); margin-bottom: 6px; }
.plat-card-val { font-size: 24px; font-weight: 700; color: var(--primary); }

/* 学员管理工具栏 + 批量栏 */
.stu-toolbar { display: flex; gap: 10px; margin: 12px 0; flex-wrap: wrap; }
.stu-search, .stu-filter { padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; color: var(--text); }
.stu-search { min-width: 200px; }
.stu-batch-bar { display: flex; gap: 10px; align-items: center; background: var(--primary-light); padding: 10px 16px; border-radius: 8px; margin-bottom: 12px; font-size: 14px; color: var(--primary-dark); }

/* 作业布置：发音源Radio / 权重 / 推送 */
.radio-group { display: flex; gap: 16px; }
.radio-item { display: flex; align-items: center; gap: 4px; font-size: 14px; cursor: pointer; }
.weight-sliders { display: flex; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--text-2); }
.weight-sliders input[type=range] { width: 80px; vertical-align: middle; }
.push-settings { display: flex; flex-wrap: wrap; gap: 14px; font-size: 14px; color: var(--text-2); }

/* 批改页：对比播放器 + 逐句分析 */
.hw-audio-compare { display: flex; gap: 16px; margin: 12px 0; flex-wrap: wrap; }
.audio-col { flex: 1; min-width: 200px; }
.audio-col label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 4px; }
.sentence-line { display: flex; align-items: center; gap: 8px; padding: 6px 10px; border-radius: 6px; margin-bottom: 4px; font-size: 14px; }
.sentence-line.good { background: #E8F5EE; }
.sentence-line.warn { background: #FFF5E6; }
.sentence-text { flex: 1; }
.sentence-score { font-weight: 700; color: var(--primary-dark); }
.sentence-issue { color: var(--warn); font-size: 13px; }
.hw-grade-hint { font-size: 13px; color: var(--text-2); margin: 8px 0; }

/* 机构设置：配置卡片 + 班级进度条 */
.inst-config-card { grid-column: span 2; }
.inst-config-body { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.inst-config-body .form-row { display: flex; align-items: center; gap: 8px; }
.inst-config-body .form-row label { min-width: 70px; font-size: 13px; color: var(--text-2); }
.inst-w-input { width: 48px; padding: 4px; border: 1px solid var(--border); border-radius: 6px; }
.inst-class-list { display: flex; flex-direction: column; gap: 10px; }
.inst-class-row { display: flex; align-items: center; gap: 12px; padding: 10px 12px; background: var(--bg-soft); border-radius: 8px; }
.inst-class-name { flex: 1; font-size: 15px; }
.inst-class-meta { font-size: 13px; color: var(--text-2); }
.inst-class-bar { flex: 2; height: 8px; background: #E2E8F0; border-radius: 4px; overflow: hidden; }
.inst-class-bar-fill { height: 100%; border-radius: 4px; transition: width 0.3s; }
.inst-class-rate { font-size: 14px; font-weight: 700; color: var(--primary-dark); min-width: 40px; text-align: right; }

/* C5 未排班专区 / 空班级橙色标识 */
.stu-class-empty { border-left: 4px solid #E8913A; background: #FFF7ED; }
.stu-class-flag { color: #E8913A; font-size: 13px; font-weight: 600; margin-left: 6px; }
.stu-unassigned-zone { margin-top: 16px; padding: 16px; border: 1px dashed #E8913A; border-radius: 12px; background: #FFF7ED; }
.stu-section-title { color: #B45309; font-size: 15px; margin: 0 0 8px; }
.stu-unassigned-hint { color: #92400E; font-size: 14px; line-height: 1.6; }
/* 作业批改 Tab 条 */
.hw-tab-bar { display: flex; gap: 8px; margin: 12px 0; }
.hw-tab { padding: 8px 16px; border-radius: 8px; background: var(--card); border: 1px solid var(--border); font-size: 14px; cursor: pointer; color: var(--text-2); }
.hw-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 600; }
/* 权重提示 */
#hw-weight-sum b { font-weight: 700; }
.soe-dim-bar { background: #E2E8F0; border-radius: 4px; height: 8px; overflow: hidden; margin-top: 4px; }
.soe-dim-bar span { display: block; height: 100%; background: #2E8B57; border-radius: 4px; }
.hw-comment-box { background: var(--green-bg); padding: 12px; border-radius: 8px; line-height: 1.6; color: var(--text); }

/* 诊断页学员姓名 */
.diag-student-name { font-weight: 600; font-size: 15px; color: var(--text); margin-right: 8px; }
/* 诊断页雷达图容器 */
.diag-radar { height: 180px; margin: 12px 0; }
/* 诊断页维度分数 */
.diag-dim { display: flex; justify-content: space-between; padding: 4px 0; font-size: 14px; border-bottom: 1px solid var(--border); }
.diag-dim-label { color: var(--text-2); }
.diag-dim-val { font-weight: 600; color: var(--primary); }
/* 诊断页空数据状态 */
.diag-empty { text-align: center; padding: 60px 20px; color: var(--text-2); background: var(--card); border-radius: 12px; border: 2px dashed var(--border); }
.diag-empty::before { content: '📊'; font-size: 48px; display: block; margin-bottom: 12px; }
/* 移动端 375px 适配 */
@media (max-width: 375px) {
  .diag-card { padding: 12px; }
  .diag-card-head { flex-wrap: wrap; gap: 6px; }
  .diag-student-name { font-size: 15px; }
  .diag-score { font-size: 15px; }
  .diag-radar { height: 150px; }
  .diag-dim { font-size: 13px; }
  .diag-class-rate table { font-size: 13px; }
  .diag-class-rate table th, .diag-class-rate table td { padding: 6px 4px; }
}

/* SOE 趋势图区块 */
.soe-trend-section { background:#fff;border-radius:12px;padding:24px;margin-top:24px;box-shadow:0 2px 8px rgba(0,0,0,0.06); }
.soe-trend-section .section-header { display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;flex-wrap:wrap;gap:12px; }
.soe-trend-section .section-header h3 { font-size:18px;font-weight:600;color:#1a1a1a;margin:0; }
.section-controls { display:flex;gap:12px; }
.section-controls .form-select { padding:8px 14px;border:1px solid #d9e8df;border-radius:8px;font-size:14px;color:#333;background:#f8fcf9;cursor:pointer;min-width:140px; }
.section-controls .form-select:focus { outline:none;border-color:#2E8B57;box-shadow:0 0 0 3px rgba(46,139,87,0.1); }
.chart-container { position:relative;width:100%;height:350px; }
.chart-legend { display:flex;flex-wrap:wrap;gap:16px;margin-top:16px;padding-top:12px;border-top:1px solid #f0f0f0; }
.legend-item { display:flex;align-items:center;gap:6px;font-size:13px;color:#555;cursor:pointer;user-select:none; }
.legend-item.dimmed { opacity:0.3; }
.legend-dot { width:10px;height:10px;border-radius:50%;display:inline-block; }
.chart-empty { position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#718096;font-size:14px;text-align:center; }
/* 学员抽屉 SOE 汇总卡片 */
.soe-summary-cards { display:flex;flex-wrap:wrap;gap:12px;margin-bottom:8px; }
.summary-card { flex:1 1 0; min-width:90px; }
.summary-card { background:#f8fcf9;border-radius:10px;padding:14px 16px;text-align:center;border:1px solid #e8f0ec; }
.summary-card .summary-label { display:block;font-size:12px;color:#888;margin-bottom:6px; }
.summary-card .summary-value { display:block;font-size:20px;font-weight:700;color:#2E8B57; }
.summary-card.strongest .summary-value { color:#6C5CE7; }
.summary-card.weakest .summary-value { color:#E8913A; }

/* O3 作业布置-导入素材 */
.hw-import-bar { display:flex; align-items:center; gap:10px; margin-top:6px; }
.hw-import-hint { font-size:12px; color:#999; }
.hw-materials-list { display:flex; flex-wrap:wrap; gap:8px; margin-top:8px; }
.hw-material-chip { display:inline-flex; align-items:center; gap:6px; background:#E8F5EE; color:#267349; border:1px solid #bfe3cf; border-radius:20px; padding:4px 10px; font-size:13px; }
.hw-material-x { border:none; background:transparent; color:#E53E3E; cursor:pointer; font-size:13px; line-height:1; }
.hw-material-x:hover { font-weight:700; }

/* 学习力诊断页移动端适配 */
@media (max-width: 375px) {
  .diag-card {
    padding: 12px;
  }
  .diag-card-head {
    flex-wrap: wrap;
    gap: 6px;
  }
  .diag-student-name {
    font-size: 15px;
  }
  .diag-score {
    font-size: 15px;
  }
  .diag-radar {
    height: 150px;
  }
  .diag-dim {
    font-size: 13px;
  }
  .diag-class-rate table {
    font-size: 13px;
  }
  .diag-class-rate table th,
  .diag-class-rate table td {
    padding: 6px 4px;
  }
  .diag-filter input {
    font-size: 15px;
  }
}


/* ===== 学习力诊断页（重构 kele1） ===== */
.diag-push-bar { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; margin-bottom: 4px; }
.diag-push-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.diag-push-tip { font-size: 13px; color: var(--text-2); }

/* 诊断对象选择区：横向一排（班级 + 学员名单 + 一键发送） */
.diag-selector-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; margin-bottom: 4px; }
.diag-selector-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.diag-selector-group { display: flex; align-items: center; gap: 8px; }
.diag-selector-label { font-size: 13px; color: var(--text-1); white-space: nowrap; font-weight: 500; }
.diag-selector-input { box-sizing: border-box; }
.diag-stu-multi { width: 180px; min-height: 60px; padding: 4px; border: 1px solid #DEE2E6; border-radius: 8px; font-size: 12px; color: var(--text-1); }
.diag-stu-hint { font-size: 12px; color: #A0AEC0; }

.diag-class-group { margin-bottom: 16px; }
.diag-class-head { display: flex; align-items: center; gap: 12px; padding: 10px 14px; background: var(--green-bg); border-radius: 10px 10px 0 0; border: 1px solid var(--border); border-bottom: none; }
.diag-class-name { font-weight: 600; color: var(--primary-dark); font-size: 15px; }
.diag-class-rate { font-size: 13px; color: var(--primary); }
.diag-class-count { font-size: 13px; color: var(--text-2); margin-left: auto; }
.diag-class-items { display: flex; flex-direction: column; gap: 8px; padding: 10px; background: var(--card); border: 1px solid var(--border); border-radius: 0 0 10px 10px; }

.diag-report-card { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; cursor: pointer; transition: box-shadow .15s, border-color .15s; }
.diag-report-card:hover { border-color: var(--primary); box-shadow: 0 2px 10px rgba(46,139,87,0.12); }
.diag-report-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.diag-report-info { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.diag-report-name { font-weight: 600; color: var(--text); font-size: 15px; }
.diag-report-score { font-size: 14px; font-weight: 600; color: var(--primary); }
.diag-report-meta { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-2); }
.diag-report-summary { margin-top: 8px; font-size: 14px; color: var(--text); background: var(--green-bg); border-radius: 6px; padding: 6px 10px; }
.diag-report-suggestion { margin-top: 6px; font-size: 14px; color: var(--text-2); }

.diag-filter { display: flex; gap: 10px; margin: 14px 0; flex-wrap: wrap; align-items: center; }
.diag-filter .inst-input { flex: 1; min-width: 160px; max-width: 320px; }
.diag-reports { margin-top: 4px; }

.diag-radio-label { transition: all .15s; }

/* 学生详情 - 学习力诊断 tab */
.stu-diag-card { border: 1px solid var(--border); border-radius: 10px; padding: 12px; margin-bottom: 10px; background: var(--card); }
.stu-diag-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.stu-diag-info { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.stu-diag-edit { margin-top: 10px; border-top: 1px dashed var(--border); padding-top: 10px; }
.stu-diag-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }

/* 响应式 */
@media (max-width: 768px) {
  .diag-report-top { flex-direction: column; align-items: flex-start; }
  .diag-filter .inst-input { max-width: none; }
}

/* 抽屉内表格优化 */
.stu-drawer .data-table {
  font-size: 13px;
}
.stu-drawer .data-table th,
.stu-drawer .data-table td {
  padding: 8px 10px;
  white-space: nowrap;
}

/* 学员列表紧凑列宽 */
.stu-table th:nth-child(1), .stu-table td:nth-child(1) { width: 50px; } /* 姓名 */
.stu-table th:nth-child(2), .stu-table td:nth-child(2) { width: 80px; } /* 手机号 */
.stu-table th:nth-child(3), .stu-table td:nth-child(3) { width: 60px; } /* 年级 */
.stu-table th:nth-child(4), .stu-table td:nth-child(4) { width: 55px; } /* 剩余课时 */
.stu-table th:nth-child(5), .stu-table td:nth-child(5) { width: 55px; } /* 状态 */
.stu-table th:nth-child(6), .stu-table td:nth-child(6) { width: 80px; } /* 操作 */


/* ============ 学生端 4 页样式（小爱 2026-08-28 新增） ============ */
.stu-hw-card {
  background: #fff; border-radius: 12px; padding: 14px 16px;
  margin-bottom: 10px; box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  border-left: 3px solid #2E8B57;
}
.stu-hw-card:hover { box-shadow: 0 3px 10px rgba(0,0,0,0.12); }
.stu-hw-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.stu-hw-title { font-weight: 600; color: #2D3748; font-size: 15px; }
.stu-hw-tag { font-size: 12px; padding: 2px 10px; border-radius: 12px; white-space: nowrap; }
.stu-hw-tag.pending { background: #FFF4E5; color: #D97706; }
.stu-hw-tag.submitted { background: #E6F4F1; color: #267349; }
.stu-hw-tag.graded { background: #E9F0FC; color: #2B6CB0; }
.stu-hw-body { color: #718096; font-size: 13px; margin-bottom: 6px; white-space: pre-line; }
.stu-hw-foot { color: #A0AEC0; font-size: 12px; }
.stu-filter-bar { display: flex; gap: 8px; margin: 12px 0; flex-wrap: wrap; }
.stu-filter {
  padding: 6px 14px; border-radius: 16px; font-size: 13px; cursor: pointer;
  background: #EDF2F7; color: #4A5568; border: 1px solid #E2E8F0;
}
.stu-filter.active { background: #2E8B57; color: #fff; border-color: #2E8B57; }
.stu-search { width: 100%; box-sizing: border-box; margin-bottom: 12px; }
.stu-loading { text-align: center; color: #718096; padding: 40px 0; }
.stu-empty { text-align: center; color: #718096; padding: 40px 0; }
.stu-empty-tip { color: #A0AEC0; font-size: 13px; margin-bottom: 12px; }
.stu-mine-card { text-align: center; padding: 14px; background: #fff; border-radius: 10px; margin-bottom: 10px; box-shadow: 0 1px 4px rgba(0,0,0,0.08); }
.stu-mine-avatar {
  width: 46px; height: 46px; border-radius: 50%; margin: 0 auto 6px;
  background: linear-gradient(135deg, #2E8B57, #3CB371); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700;
}
.stu-mine-name { font-size: 15px; font-weight: 700; color: #2D3748; }
.stu-mine-role { color: #718096; font-size: 11px; margin-top: 2px; }
.stu-mine-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 10px; }
.stu-mine-cell { background: #fff; border-radius: 8px; padding: 9px 4px; text-align: center; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
.stu-mine-num { font-size: 14px; font-weight: 700; color: #2E8B57; margin-bottom: 2px; word-break: break-all; }
.stu-notif-card { background: #fff; border-radius: 12px; padding: 14px 16px; margin-bottom: 10px; box-shadow: 0 1px 4px rgba(0,0,0,0.08); border-left: 3px solid #2B6CB0; }
.stu-notif-title { font-weight: 600; color: #2D3748; font-size: 15px; margin-bottom: 4px; }
.stu-notif-body { color: #718096; font-size: 13px; margin-bottom: 6px; }
.stu-notif-time { color: #A0AEC0; font-size: 12px; }
.stu-demo { background: #F0FAF4; border-radius: 8px; padding: 8px 12px; font-size: 13px; color: #267349; margin-top: 8px; }