/* PERF-W4 scaffold: page entry for meiyu home.
 * meiyu.css 已提升为 HTML <link> 标签（cache-bust: static_url ?v=mtime）。
 * CSS @import 不走模板版本号，nginx immutable 缓存会导致旧规则永久驻留浏览器。 */

.meiyu-teacher-brand-meta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.meiyu-kiosk-brand--teacher .product-user-pill {
    border-color: rgba(255, 255, 255, 0.28);
}

.meiyu-kiosk-brand--teacher .product-brand-capsule {
    flex: none;
}

.meiyu-kiosk-brand--teacher .product-brand-capsule-icon {
    width: var(--product-brand-icon);
    height: var(--product-brand-icon);
    border-radius: 16px;
}

.meiyu-kiosk-brand--teacher .product-brand-capsule-copy {
    height: var(--product-brand-icon);
    line-height: 1;
}

.meiyu-kiosk-brand--teacher .product-brand-capsule-eyebrow {
    font-size: 13px;
    color: #343768;
}

.meiyu-kiosk-brand--teacher .product-brand-capsule-title {
    margin: 0;
    font-size: 33px;
    line-height: 1;
}

/* ================================================================
 * §KID-UX 儿童 UX 桥接层 — Phase 2 (ADR-0184)
 * SSOT: docs/ui/meiyu_pad_child_ux_upgrade_v1.md
 * 策略：复用现有 .meiyu-* 类名，叠加 kid-ux 尺寸/字号/反馈覆盖
 * ================================================================ */

/* ── §K1 Kid-UX CSS 变量（同源 kid-ux.css §C1）— F1 去重，引用 --mkx-* 变量保持单一真相源 ── */
:root {
  --touch-target-min: 44px;
  --touch-spacing: 16px;
  --touch-safe-edge: 20px;
  --font-kid-xs: 16px;
  --font-kid-sm: 18px;
  --font-kid-md: 24px;
  --font-kid-lg: 32px;
  --font-kid-xl: 40px;
  --line-height-kid: 1.6;
  --tap-scale: 0.95;
  --tap-shadow: 0 4px 12px rgba(0,0,0,0.15);
  --tap-transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --kid-primary: var(--mkx-primary, #0F7B6C);
  --kid-secondary: #3DBDB5;
  --kid-accent: var(--mkx-accent, #FFE66D);
  --kid-bg: var(--mkx-bg, #f7f9f6);
  --kid-text: var(--mkx-text, #3e2e24);
  --kid-text-soft: var(--mkx-text-soft, #4a4a45);
}

/* ── §K2 课程卡片 kid-ux 桥接 ── */

/* 卡片触控反馈（替代 :hover-only 模式） */
.meiyu-lesson-card {
  transition: var(--tap-transition);
}
.meiyu-lesson-card:active {
  transform: scale(var(--tap-scale));
  box-shadow: var(--tap-shadow);
}

/* 卡片标题字号提升：1.15em → 适配 18px 基准 */
.meiyu-lesson-card-body h2 {
  font-size: var(--font-kid-sm);
  line-height: var(--line-height-kid);
}

/* 卡片描述文字字号提升：0.92em → 16px 辅助字号 */
.meiyu-lesson-card-body p {
  font-size: var(--font-kid-xs);
  line-height: var(--line-height-kid);
}

/* CTA 按钮化：从纯文字升级为可触控按钮态 */
.meiyu-lesson-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: var(--touch-target-min);
  padding: 8px 16px;
  margin-top: auto;
  font-size: var(--font-kid-xs);
  font-weight: 700;
  color: var(--kid-secondary);
  background: color-mix(in srgb, var(--kid-secondary) 8%, white);
  border-radius: 8px;
  transition: var(--tap-transition);
}
.meiyu-lesson-card:active .meiyu-lesson-card-cta {
  transform: scale(var(--tap-scale));
}

/* 占位卡片 CTA 保持灰色弱化态 */
.meiyu-lesson-card--placeholder .meiyu-lesson-card-cta {
  color: #94a3b8;
  background: transparent;
}

/* 图片区 aspect-ratio 统一（kid-ux card-image-wrapper 规格） */
.meiyu-lesson-card-art {
  aspect-ratio: 16/9;
  border-radius: 8px;
}

/* ── §K3 审美风味按钮 kid-ux 桥接 ── */
.meiyu-age-pill {
  font-size: var(--font-kid-sm);
  font-weight: 700;
  min-height: var(--touch-target-min);
  padding: 12px 24px;
  transition: var(--tap-transition);
}
.meiyu-age-pill:active {
  transform: scale(var(--tap-scale));
}

/* ── §K4 轨道导航 kid-ux 桥接 ── */
.meiyu-track-tab {
  font-size: var(--font-kid-sm);
  min-height: var(--touch-target-min);
  padding: 12px 24px;
  transition: var(--tap-transition);
}
.meiyu-track-tab:active {
  transform: scale(var(--tap-scale));
}
.meiyu-track-icon {
  font-size: 1.4em;
}

/* ── §K5 分级筛选 kid-ux 桥接 ── */
.meiyu-grade-pill {
  font-size: var(--font-kid-xs);
  min-height: var(--touch-target-min);
  padding: 10px 20px;
  transition: var(--tap-transition);
}
.meiyu-grade-pill:active {
  transform: scale(var(--tap-scale));
}

/* ── §K6 CTA 按钮 kid-ux 桥接 ── */
.meiyu-btn-primary {
  font-size: var(--font-kid-sm);
  min-height: 52px;
  padding: 14px 32px;
  transition: var(--tap-transition);
}
.meiyu-btn-primary:active {
  transform: scale(var(--tap-scale));
}
.meiyu-btn-secondary {
  font-size: var(--font-kid-sm);
  min-height: 52px;
  padding: 14px 32px;
  transition: var(--tap-transition);
}
.meiyu-btn-secondary:active {
  transform: scale(var(--tap-scale));
}

/* ── §K7 教师端操作按钮字号提升 ── */
.meiyu-student-entry-actions .meiyu-btn-outline {
  font-size: var(--font-kid-xs);
  min-height: var(--touch-target-min);
}

/* ── §K8 教师视角切换按钮 kid-ux ── */
.meiyu-teacher-view-switch {
  min-height: var(--touch-target-min);
}

/* ================================================================
 * §APP · Pad App 架构样式 — Phase 1 (2026-06-04)
 * 教师端首页改造：顶部导航栏 + Dashboard 内容区 + 底部 Tab Bar
 * SSOT: docs/ui/MEIYU_PAD_APP_NAVIGATION_DESIGN.md
 * ================================================================ */

/* ── §APP-TOP 顶部导航栏（fixed 44px）── */
.meiyu-app-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 44px;
  padding: 0 16px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--mkx-primary, #0F7B6C) 14%, transparent);
}
/* F4: 顶栏过渡层 — 珊瑚红→暖紫渐变品牌色带 */
.meiyu-app-topbar::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 4px;
  background: linear-gradient(90deg, var(--mkx-primary, #0F7B6C), var(--meiyu-track-ai, #8B6FC0));
  pointer-events: none;
}
.meiyu-app-topbar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--mkx-text, #3e2e24);
  letter-spacing: 0.02em;
}
.meiyu-app-topbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.meiyu-app-topbar-logo {
  display: block;
  flex: none;
  border-radius: 4px;
}
.meiyu-app-topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.meiyu-app-notify-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target-min, 44px);
  height: var(--touch-target-min, 44px);
  border: none;
  background: transparent;
  font-size: 20px;
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.meiyu-app-notify-btn:active {
  background: rgba(0, 0, 0, 0.04);
}
.meiyu-app-notify-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: #ef4444;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  line-height: 18px;
  text-align: center;
}
.meiyu-app-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0F7B6C, #1a9b8a);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

/* ── §DEV-PERSPECTIVE 开发者视角切换按钮 ── */
.meiyu-dev-perspective-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  padding: 0 12px;
  border: 1px solid var(--mkx-border, rgba(15, 123, 108, 0.25));
  border-radius: 14px;
  background: rgba(15, 123, 108, 0.06);
  color: var(--mkx-text-secondary, #64748b);
  font-size: 11px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.meiyu-dev-perspective-toggle:hover,
.meiyu-dev-perspective-toggle:active {
  background: rgba(15, 123, 108, 0.14);
  color: var(--mkx-primary, #0F7B6C);
  border-color: var(--mkx-primary, #0F7B6C);
}

/* ── §APP-TOP-SPACER 顶部导航栏占位 ── */
.meiyu-app-topbar-spacer {
  height: 44px;
}

/* ── §APP-CONTENT App 内容区（可滚动）── */
.meiyu-app-content {
  padding: 0;
  padding-top: 16px;
  padding-bottom: calc(clamp(56px, 8vh, 72px) + env(safe-area-inset-bottom, 0px) + 24px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* ── §DASHBOARD 首页仪表板区块 — F2 分区呼吸层：交替底色 + 标题竖线装饰 ── */
.meiyu-dashboard-section {
  padding: 20px clamp(14px, 2.4vw, 28px);
  margin-bottom: 6px;
  border-radius: 16px;
  background: #fff;
  transition: background 0.2s;
  position: relative;
  overflow: hidden;
}
/* G5: 分区顶部彩色装饰条 — 交替珊瑚/暖紫 */
.meiyu-dashboard-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--mkx-primary, #0F7B6C), color-mix(in srgb, var(--mkx-primary) 40%, transparent));
  opacity: 0.6;
}
.meiyu-dashboard-section:nth-child(even) {
  background: #faf8f5;
}
.meiyu-dashboard-section:nth-child(even)::before {
  background: linear-gradient(90deg, var(--meiyu-track-ai, #8B6FC0), color-mix(in srgb, var(--meiyu-track-ai) 40%, transparent));
}
.meiyu-dashboard-section h2 {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 800;
  color: var(--mkx-text, #3e2e24);
  letter-spacing: 0.01em;
  padding-left: 12px;
  border-left: 3px solid var(--mkx-primary, #0F7B6C);
}
/* G5: 偶数区 h2 左边框同步暖紫 */
.meiyu-dashboard-section:nth-child(even) h2 {
  border-left-color: var(--meiyu-track-ai, #8B6FC0);
}

/* 首页第一个 section（今日日程）去除顶部装饰条 */
.meiyu-page[data-tab="home"] .meiyu-dashboard-section:first-of-type::before {
  display: none;
}

/* ── §SCHEDULE 今日日程横向滑动 ── */
.meiyu-schedule-scroll {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
  margin-left: calc(-1 * clamp(14px, 2.4vw, 28px));
  margin-right: calc(-1 * clamp(14px, 2.4vw, 28px));
  padding-left: clamp(14px, 2.4vw, 28px);
  padding-right: clamp(14px, 2.4vw, 28px);
}
.meiyu-schedule-scroll::-webkit-scrollbar { display: none; }
.meiyu-schedule-card {
  flex: 0 0 auto;
  width: 200px;
  scroll-snap-align: start;
  padding: 14px 16px;
  background: linear-gradient(155deg, color-mix(in srgb, var(--mkx-primary, #0F7B6C) 6%, var(--mkx-bg, #f7f9f6)) 0%, #ffffff 80%);
  border: 1px solid var(--mkx-border, rgba(15, 123, 108, 0.18));
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.meiyu-schedule-card:active {
  transform: scale(var(--tap-scale, 0.95));
}
.meiyu-schedule-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--mkx-primary, #0F7B6C) 40%, transparent);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--mkx-primary, #0F7B6C) 16%, transparent);
}
.meiyu-schedule-card-time {
  font-size: 13px;
  font-weight: 700;
  color: var(--mkx-primary, #0F7B6C);
}
.meiyu-schedule-card-class {
  font-size: 14px;
  font-weight: 600;
  color: var(--mkx-text, #3e2e24);
}
.meiyu-schedule-card-title {
  font-size: 13px;
  color: var(--mkx-text-soft, #6b5a4e);
  line-height: 1.4;
}
.meiyu-schedule-card-cta {
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  color: var(--mkx-primary, #0F7B6C);
}
.meiyu-schedule-summary {
  margin-top: 10px;
  font-size: 13px;
  color: var(--mkx-text-soft, #6b5a4e);
  text-align: center;
}

/* ── §KPI 数据概要 4 卡片 ── */
.meiyu-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
@media (max-width: 600px) {
  .meiyu-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.meiyu-kpi-card {
  padding: 14px 12px;
  background: #ffffff;
  border: 1px solid var(--mkx-border, rgba(15, 123, 108, 0.18));
  border-radius: var(--meiyu-card-radius, 16px);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--meiyu-card-shadow, 0 2px 12px rgba(62, 46, 36, 0.06));
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}
.meiyu-kpi-card:active {
  transform: scale(var(--tap-scale, 0.95));
}
.meiyu-kpi-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--mkx-primary, #0F7B6C) 16%, transparent);
}
.meiyu-kpi-card-value {
  font-size: var(--font-kid-md, 24px);
  font-weight: 800;
  color: var(--mkx-text, #3e2e24);
  line-height: 1.2;
}
/* G2: KPI 数字着色 — 第1/3个暖珊瑚，第2/4个暖紫 */
.meiyu-kpi-card:nth-child(1) .meiyu-kpi-card-value,
.meiyu-kpi-card:nth-child(3) .meiyu-kpi-card-value {
  color: var(--mkx-primary, #0F7B6C);
}
.meiyu-kpi-card:nth-child(2) .meiyu-kpi-card-value,
.meiyu-kpi-card:nth-child(4) .meiyu-kpi-card-value {
  color: var(--meiyu-track-ai, #8B6FC0);
}
.meiyu-kpi-card-label {
  font-size: 13px;
  color: var(--mkx-text-soft, #6b5a4e);
  font-weight: 600;
}
.meiyu-kpi-card-trend {
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}
.meiyu-kpi-card-trend--up { color: #10b981; }
.meiyu-kpi-card-trend--down { color: #ef4444; }
.meiyu-kpi-card-trend--flat { color: #94a3b8; }

/* ── §COURSE-CARDS 课程管理卡片网格 ── */
.meiyu-course-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}
.meiyu-course-mgmt-card {
  padding: 16px;
  background: #ffffff;
  border: 1px solid var(--mkx-border, rgba(15, 123, 108, 0.18));
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.15s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}
.meiyu-course-mgmt-card:hover,
.meiyu-course-mgmt-card:focus-visible {
  border-color: color-mix(in srgb, var(--meiyu-track-ai, #8B6FC0) 40%, transparent);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--meiyu-track-ai, #8B6FC0) 16%, transparent);
  transform: translateY(-4px);
}
.meiyu-course-mgmt-card:active {
  transform: scale(var(--tap-scale, 0.95));
}
.meiyu-course-mgmt-cover {
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: 10px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--mkx-primary, #0F7B6C) 12%, #ffffff), color-mix(in srgb, var(--meiyu-track-ai, #8B6FC0) 10%, #ffffff));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4em;
  overflow: hidden;
}
.meiyu-course-mgmt-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--mkx-text, #3e2e24);
}
.meiyu-course-mgmt-meta {
  font-size: 13px;
  color: var(--mkx-text-soft, #6b5a4e);
}
.meiyu-course-mgmt-progress-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}
.meiyu-course-mgmt-progress {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: #f1f5f9;
  overflow: hidden;
}
.meiyu-course-mgmt-progress-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--mkx-primary, #0F7B6C), var(--meiyu-track-ai, #8B6FC0));
  transition: width 0.3s ease;
}
.meiyu-course-mgmt-progress-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--mkx-primary, #0F7B6C);
  min-width: 36px;
  text-align: right;
}
.meiyu-course-mgmt-stats {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--mkx-text-soft, #6b5a4e);
}
.meiyu-course-mgmt-cta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  color: var(--mkx-primary, #0F7B6C);
  min-height: var(--touch-target-min, 44px);
}

/* ── §WEEKLY-SCHEDULE 本周课表紧凑表格 ── */
.meiyu-weekly-schedule {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
}
.meiyu-schedule-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: center;
}
.meiyu-schedule-table th {
  font-weight: 700;
  color: var(--mkx-text-secondary, #64748b);
  padding: 8px 4px;
  font-size: 12px;
  border-bottom: 2px solid var(--mkx-border, rgba(15, 123, 108, 0.15));
}
.meiyu-schedule-slot {
  font-weight: 700;
  color: var(--mkx-primary, #0F7B6C);
  padding: 10px 8px;
  font-size: 13px;
  white-space: nowrap;
  text-align: left;
  min-width: 44px;
}
.meiyu-schedule-cell {
  padding: 8px 4px;
  border-radius: 8px;
  color: var(--mkx-text, #3e2e24);
  line-height: 1.4;
  transition: background 0.2s;
}
.meiyu-schedule-cell small {
  display: block;
  font-size: 11px;
  color: var(--mkx-text-secondary, #94a3b8);
  font-weight: 400;
}
/* 今日列高亮 */
.meiyu-schedule-cell.is-today {
  background: color-mix(in srgb, var(--mkx-primary, #0F7B6C) 8%, transparent);
  font-weight: 600;
}
.meiyu-schedule-cell.is-today small {
  font-weight: 500;
  color: var(--mkx-primary, #0F7B6C);
}

/* ── §QUICK-ACTIONS 快捷操作三卡片 ── */
.meiyu-quick-actions {
  display: flex;
  gap: 12px;
}
.meiyu-quick-action-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 18px 10px 14px;
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--mkx-border, rgba(15, 123, 108, 0.18));
  text-decoration: none;
  position: relative;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.meiyu-quick-action-card:active {
  transform: scale(0.96);
  border-color: var(--mkx-primary, #0F7B6C);
}
.meiyu-quick-action-icon {
  font-size: 28px;
  line-height: 1;
}
.meiyu-quick-action-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--mkx-text, #3e2e24);
}
.meiyu-quick-action-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 20px;
  height: 20px;
  line-height: 20px;
  background: var(--mkx-primary, #0F7B6C);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 10px;
  text-align: center;
  padding: 0 6px;
}

/* ── §TODO 待办提醒条 ── */
.meiyu-todo-bar {
  padding: 14px 16px;
  background: linear-gradient(135deg, #e8f5f0 0%, #ffffff 80%);
  border: 1px solid rgba(245, 158, 11, 0.28);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.meiyu-todo-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 14px;
  color: var(--mkx-text, #3e2e24);
}
.meiyu-todo-item-cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(245, 158, 11, 0.12);
  color: #b45309;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  min-height: var(--touch-target-min, 44px);
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s;
}
.meiyu-todo-item-cta:active {
  background: rgba(245, 158, 11, 0.22);
}

/* ── §EMPTY 空状态引导 ── */
.meiyu-empty-state {
  padding: 32px 20px;
  text-align: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--mkx-primary, #0F7B6C) 3%, #fafaf8), #ffffff);
  border: 1px dashed rgba(0, 0, 0, 0.1);
  border-radius: 14px;
}
.meiyu-empty-state-icon {
  font-size: 2.4em;
  margin-bottom: 8px;
  opacity: 0.6;
}
.meiyu-empty-state-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--mkx-text-soft, #6b5a4e);
  line-height: 1.5;
}
.meiyu-empty-state-hint {
  margin-top: 4px;
  font-size: 13px;
  color: #94a3b8;
}

/* ================================================================
 * §TAB-PAGES Phase 2-4: 课程卡片 / 班级卡片 / 个人资料 / 菜单列表
 * ================================================================ */

/* ── 课程 & 班级卡片（共用 meiyu-course-card）── */
.meiyu-course-list,
.meiyu-class-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.meiyu-course-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: #ffffff;
  border: 1px solid var(--mkx-border, rgba(15, 123, 108, 0.18));
  border-radius: 16px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  min-height: var(--touch-target-min, 44px);
  -webkit-tap-highlight-color: transparent;
}
.meiyu-course-card:hover,
.meiyu-course-card:focus-visible {
  border-color: rgba(139, 92, 246, 0.5);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.1);
  transform: translateY(-2px);
}
.meiyu-course-card:active {
  transform: scale(var(--tap-scale, 0.97));
}

.meiyu-course-card-cover {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--mkx-primary, #0F7B6C) 12%, #ffffff), color-mix(in srgb, var(--meiyu-track-ai, #8B6FC0) 10%, #ffffff));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6em;
}

.meiyu-course-card-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.meiyu-course-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--mkx-text, #3e2e24);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.meiyu-course-card-meta {
  font-size: 13px;
  color: var(--mkx-text-soft, #6b5a4e);
}

.meiyu-course-card-progress-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}
.meiyu-course-card-progress {
  flex: 1;
  height: 5px;
  border-radius: 3px;
  background: #f1f5f9;
  overflow: hidden;
}
.meiyu-course-card-progress-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--mkx-primary, #0F7B6C), var(--meiyu-track-ai, #8B6FC0));
  transition: width 0.3s ease;
}
.meiyu-course-card-progress-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--mkx-primary, #0F7B6C);
  min-width: 36px;
  text-align: right;
}

.meiyu-course-card-cta {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--mkx-primary, #0F7B6C);
  white-space: nowrap;
}

/* ── 个人资料卡片 ── */
.meiyu-profile-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: #ffffff;
  border: 1px solid var(--mkx-border, rgba(15, 123, 108, 0.18));
  border-radius: 16px;
}
.meiyu-profile-avatar {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mkx-primary, #0F7B6C), color-mix(in srgb, var(--mkx-primary) 60%, var(--meiyu-track-ai, #8B6FC0)));
  color: #ffffff;
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.meiyu-profile-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.meiyu-profile-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--mkx-text, #3e2e24);
}
.meiyu-profile-dept {
  font-size: 13px;
  color: var(--mkx-text-soft, #6b5a4e);
}
.meiyu-profile-email {
  font-size: 12px;
  color: #94a3b8;
}

/* ── 菜单列表 ── */
.meiyu-menu-list {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--mkx-border, rgba(15, 123, 108, 0.18));
  border-radius: 16px;
  overflow: hidden;
}
.meiyu-menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 18px;
  width: 100%;
  border: none;
  background: transparent;
  font-size: 15px;
  color: var(--mkx-text, #3e2e24);
  text-decoration: none;
  cursor: pointer;
  min-height: var(--touch-target-min, 44px);
  -webkit-tap-highlight-color: transparent;
  transition: background 0.12s;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
.meiyu-menu-item:last-child {
  border-bottom: none;
}
.meiyu-menu-item:hover,
.meiyu-menu-item:active {
  background: rgba(139, 92, 246, 0.06);
}
.meiyu-menu-item--danger {
  color: #ef4444;
}
.meiyu-menu-item-arrow {
  flex-shrink: 0;
  font-size: 14px;
  color: #94a3b8;
}

/* ── 教师教学统计卡片（Wave 5）── */
.meiyu-teacher-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.meiyu-teacher-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 8px;
  background: #ffffff;
  border: 1px solid var(--mkx-border, rgba(15, 123, 108, 0.18));
  border-radius: 12px;
}
.meiyu-teacher-stat-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--mkx-primary, #0F7B6C);
  line-height: 1.2;
}
.meiyu-teacher-stat-label {
  font-size: 12px;
  color: var(--mkx-text-soft, #6b5a4e);
}
/* ── 教师徽章墙（Wave 5）── */
.meiyu-teacher-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  padding: 8px 0;
}
.meiyu-teacher-badge-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 70px;
  cursor: default;
  position: relative;
}
.meiyu-teacher-badge-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  border: 2px solid rgba(15, 123, 108, 0.22);
  background: #fffbf5;
  transition: transform 0.2s;
}
.meiyu-teacher-badge-item:hover .meiyu-teacher-badge-icon {
  transform: scale(1.1);
}
.meiyu-teacher-badge-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--mkx-text, #3e2e24);
  text-align: center;
  max-width: 80px;
  word-break: keep-all;
}
.meiyu-teacher-badge-desc {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: #333;
  color: #fff;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
  z-index: 10;
}
.meiyu-teacher-badge-item:hover .meiyu-teacher-badge-desc {
  display: block;
}

/* ================================================================
 * §STUDENT · 学生端专属样式 — Phase 5-8
 * SSOT: docs/ui/MEIYU_PAD_APP_NAVIGATION_DESIGN.md §4
 * 设计原则：大字体(≥18px) · 大触区(≥44px) · 暖色系 · 即时反馈
 * ================================================================ */

/* ── 学生端顶部导航栏 ── */
.meiyu-app-topbar--student {
  background: rgba(247, 249, 246, 0.94);
  border-bottom-color: rgba(15, 123, 108, 0.1);
}
.meiyu-app-avatar--student {
  background: linear-gradient(135deg, #0F7B6C, #1a9b8a);
}

/* ── 学生端首页: 欢迎区 ── */
.meiyu-student-greeting {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 18px;
  background: linear-gradient(135deg, #e8f5f0 0%, #FFFFFF 60%);
  border: 1px solid rgba(15, 123, 108, 0.16);
  border-radius: 18px;
}
.meiyu-student-greeting-emoji {
  font-size: 2.2em;
  flex-shrink: 0;
  animation: meiyu-greeting-wave 2s ease-in-out infinite;
  width: 1em;
  height: 1em;
  color: var(--mkx-green-2, #FF9A76);
}
@keyframes meiyu-greeting-wave {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(12deg); }
  75% { transform: rotate(-8deg); }
}
.meiyu-student-greeting-text {
  font-size: var(--font-kid-md, 24px);
  font-weight: 800;
  color: var(--kid-text, #3e2e24);
  line-height: 1.4;
}
.meiyu-student-greeting-sub {
  margin-top: 4px;
  font-size: var(--font-kid-xs, 16px);
  color: var(--kid-text-soft, #6b5a4e);
}

/* ── 下一节课卡片 ── */
.meiyu-student-next-class {
  padding: 4px 0;
}
.meiyu-student-next-class-header {
  font-size: 14px;
  font-weight: 700;
  color: var(--kid-text-soft, #6b5a4e);
  margin-bottom: 10px;
}
.meiyu-student-next-class-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 16px;
  background: linear-gradient(135deg, #EEF4FF 0%, #FFFFFF 70%);
  border: 2px solid rgba(59, 130, 246, 0.2);
  border-radius: 16px;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.meiyu-student-next-class-card:active {
  transform: scale(var(--tap-scale, 0.97));
  box-shadow: var(--tap-shadow);
}
.meiyu-student-next-class-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, #DBEAFE, #BFDBFE);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}
.meiyu-student-next-class-info {
  flex: 1;
  min-width: 0;
}
.meiyu-student-next-class-title {
  font-size: var(--font-kid-sm, 18px);
  font-weight: 800;
  color: #1e3a5f;
}
.meiyu-student-next-class-meta {
  margin-top: 3px;
  font-size: 14px;
  color: #6b7c93;
}
.meiyu-student-next-class-cta {
  flex-shrink: 0;
  font-size: var(--font-kid-xs, 16px);
  font-weight: 700;
  color: #2563eb;
  min-height: var(--touch-target-min, 44px);
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.08);
}

/* ── 继续学习网格 ── */
.meiyu-student-continue-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.meiyu-student-continue-card {
  padding: 14px;
  background: #fff;
  border: 1px solid rgba(15, 123, 108, 0.14);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: transform 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.meiyu-student-continue-card:active {
  transform: scale(var(--tap-scale, 0.97));
}
.meiyu-student-continue-cover {
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: 10px;
  background: linear-gradient(135deg, #e8f5f0, #d4ede3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
}
.meiyu-student-continue-title {
  font-size: var(--font-kid-xs, 16px);
  font-weight: 700;
  color: var(--kid-text, #3e2e24);
}
.meiyu-student-continue-meta {
  font-size: 13px;
  color: var(--kid-text-soft, #6b5a4e);
}
.meiyu-student-continue-progress {
  height: 6px;
  border-radius: 3px;
  background: #f1f5f9;
  overflow: hidden;
}
.meiyu-student-continue-progress-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #0F7B6C, #1a9b8a);
  transition: width 0.3s ease;
}
.meiyu-student-continue-cta {
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  color: var(--kid-primary, #0F7B6C);
  min-height: var(--touch-target-min, 44px);
  display: inline-flex;
  align-items: center;
}

/* ── 推荐课程横向滑动 ── */
.meiyu-student-recommend-scroll {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 6px;
}
.meiyu-student-recommend-scroll::-webkit-scrollbar { display: none; }
.meiyu-student-recommend-card {
  flex: 0 0 auto;
  width: 120px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  transition: transform 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.meiyu-student-recommend-card:active {
  transform: scale(var(--tap-scale, 0.95));
}
.meiyu-student-recommend-cover {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 14px;
  background: linear-gradient(135deg, #f0fdf4, #dcfce7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
}
.meiyu-student-recommend-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--kid-text, #3e2e24);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.meiyu-student-recommend-grade {
  font-size: 12px;
  color: var(--kid-text-soft, #6b5a4e);
  background: rgba(15,123,108,0.08);
  padding: 2px 8px;
  border-radius: 8px;
  display: inline-block;
  white-space: nowrap;
}

/* ── 学生端课程 Tab ── */
.meiyu-student-search-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: #f5f5f0;
  border-radius: 14px;
  margin-bottom: 12px;
}
.meiyu-student-search-icon {
  font-size: 18px;
  flex-shrink: 0;
}
.meiyu-student-search-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: var(--font-kid-xs, 16px);
  color: var(--kid-text, #3e2e24);
  outline: none;
}
.meiyu-student-search-input::placeholder {
  color: #bdb5a8;
}

.meiyu-student-grade-pills {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.meiyu-student-grade-pills::-webkit-scrollbar { display: none; }
.meiyu-student-grade-pill {
  flex-shrink: 0;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1.5px solid rgba(15, 123, 108, 0.2);
  background: #fff;
  font-size: var(--font-kid-xs, 16px);
  font-weight: 700;
  color: var(--kid-text-soft, #6b5a4e);
  cursor: pointer;
  transition: all 0.15s;
  min-height: var(--touch-target-min, 44px);
  -webkit-tap-highlight-color: transparent;
}
.meiyu-student-grade-pill.active {
  background: var(--kid-primary, #0F7B6C);
  color: #fff;
  border-color: var(--kid-primary, #0F7B6C);
}
.meiyu-student-grade-pill:active {
  transform: scale(var(--tap-scale, 0.95));
}

/* 学生课程卡片（2列网格） */
.meiyu-student-course-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.meiyu-student-course-card {
  background: #fff;
  border: 1px solid rgba(15, 123, 108, 0.14);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.meiyu-student-course-card:active {
  transform: scale(var(--tap-scale, 0.97));
  box-shadow: var(--tap-shadow);
}
.meiyu-student-course-card-cover {
  width: 100%;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, color-mix(in srgb, var(--mkx-primary, #0F7B6C) 12%, #ffffff), color-mix(in srgb, var(--meiyu-track-ai, #8B6FC0) 10%, #ffffff));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
}
.meiyu-student-course-card-body {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex: 1;
}
.meiyu-student-course-card-title {
  font-size: var(--font-kid-xs, 16px);
  font-weight: 700;
  color: var(--kid-text, #3e2e24);
  line-height: 1.3;
}
.meiyu-student-course-card-grade {
  font-size: 12px;
  font-weight: 700;
  color: var(--kid-primary, #0F7B6C);
}
.meiyu-student-course-card-stars {
  font-size: 13px;
  letter-spacing: 1px;
}
.meiyu-student-course-card-desc {
  font-size: 12px;
  color: var(--kid-text-soft, #6b5a4e);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.meiyu-student-course-card-cta {
  display: block;
  padding: 10px 12px;
  border-top: 1px solid rgba(0,0,0,0.04);
  font-size: 14px;
  font-weight: 700;
  color: var(--kid-primary, #0F7B6C);
  text-align: center;
}

/* ── 学生端画廊 ── */
.meiyu-student-gallery-filter-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
}
.meiyu-student-gallery-filter-scroll::-webkit-scrollbar { display: none; }
.meiyu-student-gallery-filter-pill {
  flex-shrink: 0;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1.5px solid rgba(61, 189, 181, 0.25);
  background: #fff;
  font-size: 14px;
  font-weight: 700;
  color: var(--kid-text-soft, #6b5a4e);
  cursor: pointer;
  transition: all 0.15s;
  min-height: var(--touch-target-min, 44px);
  -webkit-tap-highlight-color: transparent;
}
.meiyu-student-gallery-filter-pill.active {
  background: var(--kid-secondary, #3DBDB5);
  color: #fff;
  border-color: var(--kid-secondary, #3DBDB5);
}

.meiyu-student-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.meiyu-student-gallery-item {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.meiyu-student-gallery-item:active {
  transform: scale(var(--tap-scale, 0.95));
  box-shadow: var(--tap-shadow);
}
.meiyu-student-gallery-item-img {
  aspect-ratio: 1;
  background: linear-gradient(135deg, #e8f5f0, #d4ede3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  overflow: hidden;
}
.meiyu-student-gallery-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.meiyu-student-gallery-item-info {
  padding: 8px 10px;
}
.meiyu-student-gallery-item-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--kid-text, #3e2e24);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.meiyu-student-gallery-item-score {
  margin-top: 2px;
  font-size: 12px;
  color: var(--kid-accent, #FFE66D);
}

.meiyu-student-gallery-summary {
  margin-top: 14px;
  padding: 10px 14px;
  background: #fafaf8;
  border-radius: 10px;
  font-size: 14px;
  color: var(--kid-text-soft, #6b5a4e);
  text-align: center;
  font-weight: 600;
}

/* ── 学生端「我的」Tab ── */
.meiyu-student-profile-hero {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: linear-gradient(135deg, #e8f5f0, #FFFFFF);
  border: 1px solid rgba(15, 123, 108, 0.14);
  border-radius: 18px;
}
.meiyu-student-profile-avatar {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0F7B6C, #1a9b8a);
  color: #fff;
  font-size: 24px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.meiyu-student-profile-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.meiyu-student-profile-name {
  font-size: var(--font-kid-md, 24px);
  font-weight: 800;
  color: var(--kid-text, #3e2e24);
}
.meiyu-student-profile-class {
  font-size: var(--font-kid-xs, 16px);
  color: var(--kid-text-soft, #6b5a4e);
}

.meiyu-student-profile-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}
.meiyu-student-profile-stat {
  padding: 14px 10px;
  background: #fff;
  border: 1px solid rgba(15, 123, 108, 0.1);
  border-radius: 14px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.meiyu-student-profile-stat-value {
  font-size: var(--font-kid-md, 24px);
  font-weight: 800;
  color: var(--kid-primary, #0F7B6C);
  line-height: 1.2;
}
.meiyu-student-profile-stat-label {
  font-size: 12px;
  color: var(--kid-text-soft, #6b5a4e);
  font-weight: 600;
}

/* 徽章展示 */
.meiyu-student-badges {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.meiyu-student-badge-placeholder {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e8f5f0, #d4ede3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
.meiyu-student-badge-placeholder--locked {
  background: #f5f5f0;
  opacity: 0.4;
}
/* M6.3: 已解锁徽章圆形图标 */
.meiyu-student-badge {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid #ffd54f;
  box-shadow: 0 2px 8px rgba(255, 213, 79, 0.3);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease;
}
.meiyu-student-badge:hover {
  transform: scale(1.1);
}
.meiyu-student-badge img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.meiyu-student-badge-labels {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.meiyu-student-badge-labels span {
  font-size: 12px;
  font-weight: 700;
  color: var(--kid-primary, #0F7B6C);
  background: rgba(15,123,108,0.08);
  padding: 3px 10px;
  border-radius: 8px;
}

/* 学习记录 */
.meiyu-student-learning-record {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.meiyu-student-learning-stat {
  padding: 14px 16px;
  background: #fff;
  border: 1px solid rgba(15, 123, 108, 0.1);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.meiyu-student-learning-stat span {
  font-size: 13px;
  color: var(--kid-text-soft, #6b5a4e);
  font-weight: 600;
}
.meiyu-student-learning-stat strong {
  font-size: var(--font-kid-sm, 18px);
  font-weight: 800;
  color: var(--kid-text, #3e2e24);
}

/* ── 学生端容器高度：确保 viewport 有可用高度 ── */
.meiyu-shell[data-meiyu-shell="student"] {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.meiyu-shell[data-meiyu-shell="student"] .meiyu-page-viewport {
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
}

/* 学生端 page 切换动画兼容 */
.meiyu-page--tab-enter {
  animation: meiyuTabFadeIn 0.2s ease-out;
}
@keyframes meiyuTabFadeIn {
  from { opacity: 0.5; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Mock 数据演示模式标识 ── */
.meiyu-mock-badge {
  position: fixed;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  background: var(--color-warning, #f59e0b);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 10px;
  line-height: 20px;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  pointer-events: none;
  user-select: none;
}

/* ================================================================
 * M6.2 Lesson Player — 学生课程播放器
 * SSOT: docs/platform/MEIYU_EDUCATION_PHASE6_10_ROADMAP.md §M6.2
 * ================================================================ */

.meiyu-player-shell {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  background: var(--kid-bg, #FFFDF7);
}

/* ── 返回课程列表按钮 ── */
.meiyu-player-back-row {
  padding: 8px 16px 0;
}
.meiyu-player-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  font-size: 15px;
  color: var(--kid-text-soft, #6b5a4e);
  cursor: pointer;
  padding: 6px 4px;
  min-height: 44px;
  font-family: inherit;
}
.meiyu-player-back-btn:active {
  color: var(--kid-primary, #0F7B6C);
}

/* ── 进度条 ── */
.meiyu-player-progress-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: #fff;
  border-bottom: 1px solid #f0ebe3;
}
.meiyu-player-progress-bar {
  flex: 1;
  height: 6px;
  background: #f0ebe3;
  border-radius: 3px;
  overflow: hidden;
}
.meiyu-player-progress-fill {
  height: 100%;
  background: var(--kid-primary, #0F7B6C);
  border-radius: 3px;
  transition: width 0.3s ease;
}
.meiyu-player-progress-text {
  font-size: 13px;
  color: var(--kid-text-soft, #6b5a4e);
  white-space: nowrap;
  min-width: 36px;
  text-align: right;
}

/* ── 内容区 ── */
.meiyu-player-sections {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}
.meiyu-player-page {
  animation: meiyuPlayerFadeIn 0.25s ease;
}
@keyframes meiyuPlayerFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Section 标头 ── */
.meiyu-player-section-label {
  font-size: var(--font-kid-xs, 16px);
  font-weight: 600;
  color: var(--kid-primary, #0F7B6C);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

/* ── 锚定问题 ── */
.meiyu-player-anchor-question {
  font-size: var(--font-kid-lg, 32px);
  font-weight: 700;
  color: var(--kid-text, #3e2e24);
  line-height: var(--line-height-kid, 1.6);
  margin-bottom: 16px;
}
.meiyu-player-anchor-input-wrap {
  margin-top: 8px;
}
.meiyu-player-anchor-input {
  width: 100%;
  min-height: 80px;
  padding: 12px;
  border: 2px solid #e8e0d8;
  border-radius: 12px;
  font-size: var(--font-kid-md, 24px);
  font-family: inherit;
  background: #fff;
  resize: vertical;
  transition: border-color 0.2s;
}
.meiyu-player-anchor-input:focus {
  border-color: var(--kid-primary, #0F7B6C);
  outline: none;
}

/* ── 知识卡片 ── */
.meiyu-player-knowledge-card {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid #f0ebe3;
}
.meiyu-player-knowledge-title {
  font-size: var(--font-kid-md, 24px);
  font-weight: 700;
  color: var(--kid-text, #3e2e24);
  margin-bottom: 12px;
}
.meiyu-player-knowledge-body {
  font-size: var(--font-kid-sm, 18px);
  line-height: var(--line-height-kid, 1.6);
  color: var(--kid-text, #3e2e24);
  margin-bottom: 12px;
}
.meiyu-player-knowledge-cite {
  font-size: 14px;
  color: var(--kid-text-soft, #6b5a4e);
  padding: 8px 12px;
  background: #faf7f2;
  border-radius: 8px;
  font-style: italic;
}

/* ── 演示对比 ── */
.meiyu-player-demo-pair {
  background: #fff;
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid #f0ebe3;
}
.meiyu-player-demo-before,
.meiyu-player-demo-after {
  padding: 10px;
  border-radius: 8px;
  font-size: var(--font-kid-sm, 18px);
  line-height: var(--line-height-kid, 1.6);
}
.meiyu-player-demo-before {
  background: #eaf5f0;
  margin-bottom: 8px;
}
.meiyu-player-demo-after {
  background: #f0fff4;
}
.meiyu-player-demo-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background: #e8e0d8;
  color: #666;
  margin-bottom: 6px;
}
.meiyu-player-demo-tag--after {
  background: var(--kid-secondary, #3DBDB5);
  color: #fff;
}
.meiyu-player-demo-arrow {
  text-align: center;
  font-size: 20px;
  color: var(--kid-text-soft, #6b5a4e);
  padding: 4px 0;
}
.meiyu-player-demo-caption {
  font-size: 15px;
  color: var(--kid-text-soft, #6b5a4e);
  padding: 8px 12px;
  background: #faf7f2;
  border-radius: 8px;
  margin-top: 8px;
}

/* ── 引导练习 ── */
.meiyu-player-practice-step {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid #f0ebe3;
}
.meiyu-player-practice-prompt {
  font-size: var(--font-kid-md, 24px);
  line-height: var(--line-height-kid, 1.6);
  color: var(--kid-text, #3e2e24);
  margin-bottom: 12px;
}
.meiyu-player-practice-hint {
  margin-bottom: 12px;
}
.meiyu-player-practice-hint summary {
  font-size: 15px;
  color: var(--kid-secondary, #3DBDB5);
  cursor: pointer;
  padding: 4px 0;
}
.meiyu-player-practice-expected {
  font-size: 15px;
  color: var(--kid-text-soft, #6b5a4e);
  padding: 10px 14px;
  background: #f0faf8;
  border-radius: 8px;
  margin-top: 6px;
  line-height: 1.5;
}
.meiyu-player-practice-actions {
  margin-top: 12px;
}
.meiyu-player-practice-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-kid-sm, 18px);
  color: var(--kid-text, #3e2e24);
  cursor: pointer;
  min-height: var(--touch-target-min, 44px);
}
.meiyu-player-practice-check input[type="checkbox"] {
  width: 22px;
  height: 22px;
  cursor: pointer;
}

/* ── 反思提问 ── */
.meiyu-player-reflection {
  background: #fff;
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid #f0ebe3;
}
.meiyu-player-reflection-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--kid-primary, #0F7B6C);
  margin-bottom: 6px;
}
.meiyu-player-reflection-text {
  font-size: var(--font-kid-sm, 18px);
  line-height: var(--line-height-kid, 1.6);
  color: var(--kid-text, #3e2e24);
  margin-bottom: 8px;
}
.meiyu-player-reflection-input {
  width: 100%;
  min-height: 50px;
  padding: 10px;
  border: 2px solid #e8e0d8;
  border-radius: 10px;
  font-size: 16px;
  font-family: inherit;
  background: #faf7f2;
  resize: vertical;
}

/* ── F 段创作工坊 ── */
.meiyu-player-f-stage {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid #f0ebe3;
}
.meiyu-player-f-stage-brief {
  font-size: var(--font-kid-md, 24px);
  line-height: var(--line-height-kid, 1.6);
  color: var(--kid-text, #3e2e24);
  margin-bottom: 12px;
}
.meiyu-player-f-stage-constraints {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}
.meiyu-player-f-stage-constraints li {
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 15px;
  color: var(--kid-text-soft, #6b5a4e);
}
.meiyu-player-f-stage-constraints li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--mkx-purple, #8B6FC0);
  font-size: 20px;
  line-height: 1;
}
.meiyu-player-f-stage-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.meiyu-player-f-stage-ability {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  color: var(--kid-text, #3e2e24);
}
.meiyu-player-f-stage-select {
  padding: 8px 12px;
  border: 2px solid #e8e0d8;
  border-radius: 8px;
  font-size: 16px;
  font-family: inherit;
  background: #fff;
  min-height: var(--touch-target-min, 44px);
}
.meiyu-player-f-stage-input {
  width: 100%;
  min-height: 70px;
  padding: 12px;
  border: 2px solid #e8e0d8;
  border-radius: 10px;
  font-size: 16px;
  font-family: inherit;
  background: #faf7f2;
  resize: vertical;
}
.meiyu-player-f-stage-submit {
  align-self: flex-start;
  min-height: var(--touch-target-min, 44px);
  padding: 0 24px;
  font-size: var(--font-kid-sm, 18px);
}
.meiyu-player-f-stage-submit:disabled {
  opacity: 0.6;
  cursor: default;
}

/* ── 底部导航 ── */
.meiyu-player-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: #fff;
  border-top: 1px solid #f0ebe3;
  position: sticky;
  bottom: 0;
}
.meiyu-player-btn {
  flex: 1;
  min-height: var(--touch-target-min, 44px);
  padding: 0 20px;
  border: 2px solid var(--kid-primary, #0F7B6C);
  border-radius: 12px;
  font-size: var(--font-kid-sm, 18px);
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s;
  background: #fff;
  color: var(--kid-primary, #0F7B6C);
}
.meiyu-player-btn:active:not(:disabled) {
  transform: scale(0.97);
}
.meiyu-player-btn:disabled {
  opacity: 0.3;
  cursor: default;
}
.meiyu-player-btn-next {
  background: var(--kid-primary, #0F7B6C);
  color: #fff;
  border-color: var(--kid-primary, #0F7B6C);
}

/* ================================================================
 * §RESPONSIVE · 横竖屏响应式适配 — Phase 9 (2026-06-05)
 * SSOT: docs/ui/MEIYU_PAD_APP_RESPONSIVE_DESIGN.md
 * 断点策略: orientation + min-width/min-height 组合判断
 * Pad 典型尺寸: iPad Air 10.9" = 820×1180 (竖) / 1180×820 (横)
 * ================================================================ */

/* ── §R1 顶部导航栏横屏适配 ── */
@media (orientation: landscape) and (min-height: 500px) {
  /* 横屏时导航栏高度略微增加，提升视觉平衡 */
  .meiyu-app-topbar {
    height: 52px;
  }
  .meiyu-app-topbar-spacer {
    height: 52px;
  }
  .meiyu-app-topbar-title {
    font-size: 20px;
  }
}

/* ── §R2 KPI 数据概要网格适配 ── */
@media (orientation: portrait) and (max-width: 600px) {
  /* 小屏竖屏: 强制2列 */
  .meiyu-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (orientation: landscape) and (min-width: 768px) {
  /* 横屏: 保持4列，但增加卡片内边距和字号 */
  .meiyu-kpi-card {
    padding: 18px 16px;
  }
  .meiyu-kpi-card-value {
    font-size: 28px;
  }
  .meiyu-kpi-card-label {
    font-size: 14px;
  }
}

/* ── §R3 今日日程横向滚动 → 横屏网格化 ── */
@media (orientation: landscape) and (min-width: 768px) {
  .meiyu-schedule-scroll {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
    overflow-x: visible;
    scroll-snap-type: none;
    margin: 0;
    padding: 0;
  }
  .meiyu-schedule-card {
    width: auto;
    scroll-snap-align: none;
  }
}

/* ── §R4 课程管理卡片网格适配 ── */
@media (orientation: portrait) and (max-width: 768px) {
  /* 竖屏平板: 2列 */
  .meiyu-course-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (orientation: landscape) and (min-width: 1024px) {
  /* 横屏大屏: 3-4列自适应 */
  .meiyu-course-card-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  .meiyu-course-mgmt-card {
    padding: 18px;
  }
  .meiyu-course-mgmt-title {
    font-size: 17px;
  }
}

/* ── §R5 学生端画廊网格适配 ── */
@media (orientation: portrait) and (max-width: 600px) {
  /* 小屏竖屏: 2列 */
  .meiyu-student-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (orientation: landscape) and (min-width: 768px) {
  /* 横屏: 4列 */
  .meiyu-student-gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ── §R6 学生端课程网格适配 ── */
@media (orientation: landscape) and (min-width: 768px) {
  /* 横屏: 3列 */
  .meiyu-student-course-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── §R7 学生端继续学习网格适配 ── */
@media (orientation: landscape) and (min-width: 768px) {
  /* 横屏: 3列 */
  .meiyu-student-continue-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── §R7b 底部 Tab Bar 基础样式 ── */
.meiyu-bottom-tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid rgba(200,184,172,0.25);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 1000;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.meiyu-bottom-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 6px 0;
  text-decoration: none;
  color: var(--kid-text-soft, #8b7a6e);
  transition: color 0.15s ease;
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}
.meiyu-bottom-tab.active {
  color: var(--mkx-green, #0F7B6C);
}
.meiyu-bottom-tab-icon {
  font-size: 24px;
  line-height: 1;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.meiyu-bottom-tab-label {
  font-size: 11px;
  font-weight: 500;
  line-height: 1.2;
}
.meiyu-tabbar-spacer {
  height: calc(56px + env(safe-area-inset-bottom, 0px));
}

/* ── §R8 底部 Tab Bar 横屏适配 ── */
@media (orientation: landscape) and (min-height: 500px) {
  /* 横屏时底部 Tab Bar 高度略微减小，节省纵向空间 */
  .meiyu-bottom-tabbar {
    height: clamp(48px, 6vh, 56px);
  }
  .meiyu-app-content {
    padding-bottom: calc(clamp(48px, 6vh, 56px) + env(safe-area-inset-bottom, 0px) + 16px);
  }
}

/* ── §R9 字体大小横屏微调 ── */
@media (orientation: landscape) and (min-width: 1024px) {
  /* 横屏大屏可适当增大字号，提升可读性 */
  :root {
    --font-kid-xs: 17px;
    --font-kid-sm: 19px;
    --font-kid-md: 26px;
    --font-kid-lg: 34px;
  }
}

/* ── §R10 待办提醒条横屏优化 ── */
@media (orientation: landscape) and (min-width: 768px) {
  .meiyu-todo-bar {
    flex-direction: row;
    gap: 16px;
  }
  .meiyu-todo-item {
    flex: 1;
  }
}

/* ── §R11 个人资料卡片横屏优化 ── */
@media (orientation: landscape) and (min-width: 768px) {
  .meiyu-profile-card {
    padding: 24px;
  }
  .meiyu-profile-avatar {
    width: 64px;
    height: 64px;
    font-size: 24px;
  }
  .meiyu-profile-name {
    font-size: 20px;
  }
}

/* ── §R12 学生端欢迎区横屏优化 ── */
@media (orientation: landscape) and (min-width: 768px) {
  .meiyu-student-greeting {
    padding: 24px 20px;
  }
  .meiyu-student-greeting-text {
    font-size: 26px;
  }
  .meiyu-student-greeting-sub {
    font-size: 17px;
  }
}

/* ── §R13 学生端下一节课卡片横屏优化 ── */
@media (orientation: landscape) and (min-width: 768px) {
  .meiyu-student-next-class-card {
    padding: 20px 18px;
  }
  .meiyu-student-next-class-icon {
    width: 56px;
    height: 56px;
    font-size: 28px;
  }
  .meiyu-student-next-class-title {
    font-size: 20px;
  }
}

/* ── §R14 菜单列表项横屏优化 ── */
@media (orientation: landscape) and (min-width: 768px) {
  .meiyu-menu-item {
    padding: 16px 20px;
    font-size: 16px;
  }
}

/* ── §R15 空状态引导横屏优化 ── */
@media (orientation: landscape) and (min-width: 768px) {
  .meiyu-empty-state {
    padding: 40px 24px;
  }
  .meiyu-empty-state-icon {
    font-size: 2.8em;
  }
  .meiyu-empty-state-text {
    font-size: 16px;
  }
}

/* ── M6.3 徽章解锁 Toast ── */
.meiyu-badge-toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.85);
  color: #fff;
  border-radius: 12px;
  padding: 16px 24px;
  z-index: 9999;
  animation: meiyu-toast-in 0.3s ease;
  white-space: nowrap;
}
.meiyu-badge-toast-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
}
.meiyu-badge-toast-item img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
}
@keyframes meiyu-toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(20px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ── Wave 3 课程操作菜单 ── */
.meiyu-action-menu {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  z-index: 10000;
  min-width: 180px;
  overflow: hidden;
}
.meiyu-action-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.meiyu-action-menu li {
  padding: 14px 20px;
  cursor: pointer;
  font-size: 15px;
  border-bottom: 1px solid var(--border-color, #f0f0f0);
  transition: background 0.15s;
}
.meiyu-action-menu li:last-child {
  border-bottom: none;
}
.meiyu-action-menu li:hover {
  background: var(--hover-bg, #f5f5f5);
}
.meiyu-action-menu-danger {
  color: #e74c3c;
}
.meiyu-action-menu-danger:hover {
  background: #fef0ef !important;
}

/* ── Wave 3 按钮块级 ── */
.meiyu-btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

/* ── Wave 3 课程表单 ── */
.meiyu-form {
  padding: 16px;
}
.meiyu-form label {
  display: block;
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color, #333);
}
.meiyu-form input[type="text"],
.meiyu-form select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  font-size: 15px;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 8px;
  background: #fff;
  box-sizing: border-box;
}
.meiyu-form input[type="text"]:focus,
.meiyu-form select:focus {
  outline: none;
  border-color: var(--primary, #4285f4);
  box-shadow: 0 0 0 2px rgba(66,133,244,0.15);
}
.meiyu-form .meiyu-btn {
  width: 100%;
  margin-top: 8px;
}

/* ── Lucide Icons 通用样式 ── */
.ph {
  width: 1.25em;
  height: 1.25em;
  vertical-align: -0.25em;
  flex-shrink: 0;
}
.meiyu-empty-state-icon .ph {
  width: 1.6em;
  height: 1.6em;
  color: var(--mkx-green-2, #FF9A76);
}
.meiyu-menu-item .ph {
  width: 1.2em;
  height: 1.2em;
  margin-right: 6px;
  color: var(--kid-text-soft, #6b5a4e);
}
.meiyu-quick-action-icon .ph {
  width: 1.4em;
  height: 1.4em;
}
.meiyu-app-notify-btn .ph,
.meiyu-student-search-icon .ph {
  width: 1.3em;
  height: 1.3em;
}

/* ── 等级色点 (🟢🟡🟣 → Lucide circle) ── */
.meiyu-grade-dot {
  width: 14px;
  height: 14px;
  vertical-align: -2px;
  margin-right: 2px;
}
.meiyu-grade-dot--l1 { color: #4CAF50; fill: #4CAF50; }
.meiyu-grade-dot--l2 { color: #FFC107; fill: #FFC107; }
.meiyu-grade-dot--l3 { color: #9C27B0; fill: #9C27B0; }

/* ── 星级评分 (⭐☆ → Lucide star) ── */
.ph-star.ph-fill {
  width: 18px;
  height: 18px;
  color: #FFB300;
  fill: #FFB300;
}
.ph-star {
  width: 18px;
  height: 18px;
  color: #D0C8C0;
}

/* ── 徽章锁定占位符中的锁图标 ── */
.meiyu-student-badge-placeholder--locked .ph {
  width: 22px;
  height: 22px;
  color: #C0B8B0;
}