/**
 * 适老化全局增强（作用于现有页面，不新增路由）
 * - 正文字号 ≥ 20px，标题 ≥ 32px，按钮字 ≥ 22px
 * - 高对比、大留白、大触控、缓慢过渡
 */
:root {
  --ink: #243038;
  --ink-soft: #3d4d56;
  --paper: #f3f1ea;
  --panel: #faf8f3;
  --line: rgba(36, 48, 56, 0.16);
  --teal: #1f5c57;
  --teal-deep: #154540;
  --sand: #d4c4a8;
  --shadow: 0 8px 22px rgba(36, 48, 56, 0.12);
  --radius: 18px;
  --touch-min: 56px;
  --space-loose: 1.75rem;
  --motion: 0.55s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 20px;
}

body {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
}

.bg-layer {
  background:
    radial-gradient(ellipse 70% 50% at 10% 10%, rgba(232, 238, 245, 0.95), transparent 55%),
    linear-gradient(165deg, #f3f1ea 0%, #e8eef5 45%, #ebe6db 100%);
}

.bg-layer::after {
  opacity: 0.35;
}

/* —— 按钮：大触控、清晰字号 —— */
.btn-primary,
.btn-outline,
.btn-ghost,
.btn-inline,
button.btn-primary,
a.btn-primary,
a.btn-outline,
a.btn-ghost {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: 0.85rem 1.35rem;
  font-size: 1.1rem; /* ≈22px */
  font-weight: 700;
  border-radius: 16px;
  transition: transform var(--motion), background var(--motion), box-shadow var(--motion), border-color var(--motion);
  box-shadow: var(--shadow);
}

.btn-primary {
  background: var(--teal);
  color: #f7faf8;
  letter-spacing: 0.01em;
}

.btn-primary:hover {
  background: var(--teal-deep);
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #8aa4b8;
  background: #f4f8fc;
  color: #1e4d7b;
  text-decoration: none;
}

.btn-outline:hover {
  background: #e7eef6;
}

.btn-ghost {
  min-height: 48px;
  font-size: 1.05rem;
  box-shadow: none;
}

.btn-inline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0;
  text-decoration: none;
}

/* —— 顶栏导航 —— */
.home-topbar {
  background: rgba(250, 248, 243, 0.96);
  border-bottom: 2px solid var(--line);
}

.home-topbar-inner {
  padding: 1rem 1.5rem;
  gap: 1.25rem;
}

.brand-mark.compact {
  font-size: 1.55rem;
}

.home-tagline {
  font-size: 0.95rem;
}

.home-nav {
  gap: 0.5rem;
}

.home-nav a {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1rem;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 14px;
  color: var(--ink);
  transition: background var(--motion), color var(--motion);
}

.home-nav a.is-active {
  background: var(--teal);
  color: #f7faf8;
}

.user-meta strong {
  font-size: 1.05rem;
}

.user-meta span {
  font-size: 0.95rem;
  max-width: 220px;
  white-space: normal;
}

/* —— 首页内容区 —— */
.home-content,
.page-content {
  padding: 2rem 1.5rem 4rem;
  gap: var(--space-loose);
}

.welcome-panel,
.panel,
.page-hero,
.quiz-item,
.module-card,
.stat-card,
.task-item {
  padding: var(--space-loose) !important;
}

.welcome-panel {
  gap: 1.75rem;
  border: 2px solid var(--line);
}

.welcome-kicker {
  font-size: 1rem;
}

.welcome-copy h1,
.page-hero h1,
#greeting-title {
  font-size: clamp(2rem, 4vw, 2.6rem) !important; /* ≥32px */
  line-height: 1.25;
  margin-bottom: 1rem;
}

.welcome-desc,
.panel-header p,
.sec-desc,
.module-body p,
.stat-note,
.task-item p {
  font-size: 1.05rem !important;
  line-height: 1.65;
}

.welcome-actions,
.page-actions,
.hero-actions {
  gap: 1rem;
  margin-top: 1.5rem;
}

.panel {
  border: 2px solid var(--line);
}

.panel-header h2,
.modules-panel h2,
.schedule-panel h2,
.tips-panel h2,
.family-progress-panel h2 {
  font-size: 1.6rem !important; /* ~32px */
  margin-bottom: 0.5rem;
}

.module-grid {
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.module-card {
  gap: 1rem;
  border-radius: 18px;
  border: 2px solid rgba(31, 92, 87, 0.14);
  min-height: 120px;
  transition: transform var(--motion), box-shadow var(--motion);
}

.module-icon {
  width: 56px;
  height: 56px;
}

.module-body h3 {
  font-size: 1.25rem !important;
}

.module-badge {
  font-size: 0.95rem;
  padding: 0.35rem 0.7rem;
}

.stat-card {
  border-radius: 16px;
  border: 2px solid var(--line);
}

.stat-label {
  font-size: 1rem !important;
}

.stat-value {
  font-size: 2rem !important;
}

.home-grid {
  gap: 1.75rem;
}

.side-stack {
  gap: 1.5rem;
}

.task-list {
  gap: 1rem;
}

.task-item time {
  font-size: 1rem;
  font-weight: 700;
}

.tips-list li {
  font-size: 1.05rem;
  margin-bottom: 0.85rem;
  line-height: 1.6;
}

/* 家属进度列表 */
.family-session-item {
  padding: 1rem 1.1rem !important;
  gap: 0.85rem;
  min-height: 64px;
  font-size: 1.05rem;
}

.family-session-title {
  font-size: 1.15rem;
}

/* —— 大声朗读 —— */
.speak-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.speak-btn {
  flex: 0 0 auto;
  min-height: 56px;
  min-width: 148px;
  padding: 0.65rem 1rem;
  border: 2px solid #8aa4b8;
  border-radius: 14px;
  background: #eef5fb;
  color: #1e4d7b;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(30, 77, 123, 0.12);
  transition: background var(--motion), color var(--motion);
}

.speak-btn:hover {
  background: #ddeaf6;
}

.speak-btn.is-speaking {
  background: #1e4d7b;
  color: #f4f8fc;
  border-color: #1e4d7b;
}

/* —— 工作台助手：改成「需要帮助？」大按钮观感 —— */
.ws-assistant {
  right: 1.25rem;
  bottom: 1.25rem;
}

.ws-assistant-fab {
  min-height: 72px;
  padding: 1rem 1.4rem;
  font-size: 1.15rem;
  font-weight: 800;
  border-radius: 999px;
  background: var(--teal);
  box-shadow: 0 12px 28px rgba(31, 92, 87, 0.35);
  transition: transform var(--motion), background var(--motion);
}

.ws-assistant-fab:hover {
  transform: translateY(-3px);
  background: var(--teal-deep);
}

.ws-assistant-panel {
  width: min(420px, calc(100vw - 1.5rem));
  padding: 1.25rem;
  border-radius: 18px;
  border: 2px solid var(--line);
  transition: opacity var(--motion), transform var(--motion);
}

.ws-assistant-header strong {
  font-size: 1.25rem;
}

.ws-assistant-header p,
.ws-assistant-disclaimer,
.ws-assistant-status {
  font-size: 1rem;
}

.ws-assistant-quick button {
  min-height: 48px;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.55rem 0.85rem;
}

.ws-assistant-form input {
  min-height: 56px;
  font-size: 1.05rem;
  padding: 0.75rem 1rem;
}

/* —— 通用页面/CST/任务：放大关键控件 —— */
.option-chip,
.word-chip,
.curriculum-record-btn,
.card-speak-btn,
.voice-actions button {
  min-height: 52px !important;
  font-size: 1.05rem !important;
  padding: 0.7rem 1rem !important;
}

.quiz-prompt,
.card-speak-text,
.voice-focus-prompt {
  font-size: 1.25rem !important;
  line-height: 1.5;
}

.ro-grid {
  gap: 1rem;
}

.ro-grid dt {
  font-size: 1rem;
}

.ro-grid dd {
  font-size: 1.25rem;
  font-weight: 700;
}

/* 登录页也略放大 */
.auth-shell {
  gap: 2.5rem;
}

.brand-title {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
}

.brand-desc,
.field label,
.field input,
.field select {
  font-size: 1.05rem;
}

.field input,
.field select {
  min-height: 56px;
  padding: 0.85rem 1rem;
}

@media (max-width: 860px) {
  .home-topbar-inner {
    grid-template-columns: 1fr;
  }

  .home-nav {
    justify-content: flex-start;
  }

  .home-nav a {
    flex: 1 1 auto;
    justify-content: center;
  }

  .welcome-panel {
    grid-template-columns: 1fr !important;
  }

  .module-grid {
    grid-template-columns: 1fr;
  }

  .speak-btn {
    width: 100%;
  }
}