/* ============================================================
   脑梗康复助手 — 适老化样式
   设计原则：大字号、大按钮(≥52px)、高对比度、简单层级
   ============================================================ */

:root {
  --bg: #F6F3EC;
  --card: #FFFFFF;
  --text: #22262E;
  --text-2: #5A6070;
  --primary: #2E6FE0;
  --primary-dark: #1F55B5;
  --primary-soft: #E8F0FE;
  --green: #1E8E5A;
  --green-soft: #E4F5EC;
  --orange: #D97706;
  --orange-soft: #FDF0DC;
  --red: #D93A3A;
  --red-soft: #FDEAEA;
  --border: #E4DFD5;
  --shadow: 0 2px 8px rgba(40, 40, 60, 0.08);
  --radius: 16px;
  --nav-h: 76px;
}

/* 字号档位：标准 18 / 大 20 / 特大 22 */
html { font-size: 18px; }
html[data-font="large"] { font-size: 20px; }
html[data-font="xlarge"] { font-size: 22px; }

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  padding-bottom: calc(var(--nav-h) + env(safe-area-inset-bottom, 0px));
  -webkit-tap-highlight-color: rgba(46, 111, 224, 0.15);
}

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

/* ---------- 顶栏 ---------- */
.app-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 600px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.6rem 0.9rem;
}
.header-title { font-size: 1.15rem; font-weight: 700; display: flex; align-items: center; gap: 0.4rem; }
.header-logo { font-size: 1.3rem; }
.header-actions { display: flex; gap: 0.5rem; align-items: center; }
.btn-icon {
  min-height: 48px; min-width: 48px;
  border: 1px solid var(--border); border-radius: 12px;
  background: var(--card); font-size: 1.1rem;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  line-height: 1.1; padding: 0.2rem 0.5rem; color: var(--text-2);
}
.btn-icon-label { font-size: 0.7rem; }
.btn-emergency {
  min-height: 48px; padding: 0 0.9rem;
  background: var(--red); color: #fff;
  border: none; border-radius: 12px;
  font-size: 1.05rem; font-weight: 700;
}
.btn-emergency:active { background: #B92F2F; }

/* ---------- 主容器 ---------- */
.view-container {
  max-width: 600px; margin: 0 auto;
  padding: 1rem 0.9rem 1.5rem;
}

/* ---------- 底部导航 ---------- */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
  background: var(--card); border-top: 1px solid var(--border);
  display: flex;
  height: calc(var(--nav-h) + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  max-width: 100%;
}
.nav-item {
  flex: 1; border: none; background: none;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; font-size: 0.85rem; color: var(--text-2);
}
.nav-item .nav-icon { font-size: 1.5rem; line-height: 1; }
.nav-item.active { color: var(--primary); font-weight: 700; }
.nav-item.active .nav-icon { transform: scale(1.12); }

/* ---------- 通用卡片 ---------- */
.card {
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1rem;
  margin-bottom: 0.9rem;
}
.card-title {
  font-size: 1.1rem; font-weight: 700;
  display: flex; align-items: center; gap: 0.4rem;
  margin-bottom: 0.6rem;
}
.card-title .more { margin-left: auto; font-size: 0.85rem; color: var(--primary); font-weight: 400; }
.muted { color: var(--text-2); font-size: 0.9rem; }
.section-gap { height: 0.3rem; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  min-height: 52px; padding: 0.5rem 1.2rem;
  border-radius: 14px; border: none;
  font-size: 1.05rem; font-weight: 600;
  background: var(--primary); color: #fff;
}
.btn:active { background: var(--primary-dark); }
.btn.block { display: flex; width: 100%; }
.btn.ghost { background: var(--primary-soft); color: var(--primary); }
.btn.outline { background: var(--card); color: var(--text); border: 1.5px solid var(--border); }
.btn.green { background: var(--green); }
.btn.red { background: var(--red); }
.btn.small { min-height: 44px; padding: 0.3rem 0.8rem; font-size: 0.95rem; }
.btn.huge { min-height: 64px; font-size: 1.25rem; }
.btn:disabled { opacity: 0.5; }
.btn-row { display: flex; gap: 0.6rem; margin-top: 0.8rem; }
.btn-row .btn { flex: 1; }

/* ---------- 今日页 ---------- */
.today-hero {
  background: linear-gradient(135deg, #2E6FE0, #4A8AF0);
  color: #fff; border-radius: var(--radius);
  padding: 1.1rem 1rem; margin-bottom: 0.9rem;
  box-shadow: var(--shadow);
}
.today-hero .date-line { font-size: 0.95rem; opacity: 0.92; }
.today-hero .greet { font-size: 1.35rem; font-weight: 700; margin: 0.2rem 0; }
.today-hero .rehab-day { font-size: 1rem; opacity: 0.95; }
.streak-chip {
  display: inline-flex; align-items: center; gap: 0.3rem;
  background: rgba(255,255,255,0.2); border-radius: 999px;
  padding: 0.25rem 0.8rem; margin-top: 0.55rem; font-size: 0.95rem;
}

.check-item {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 0.7rem 0.2rem;
  border-bottom: 1px solid var(--border);
  min-height: 56px;
}
.check-item:last-child { border-bottom: none; }
.check-item .ci-icon { font-size: 1.5rem; width: 2rem; text-align: center; }
.check-item .ci-body { flex: 1; }
.check-item .ci-name { font-weight: 600; font-size: 1.02rem; }
.check-item .ci-sub { font-size: 0.85rem; color: var(--text-2); }
.check-item.done .ci-name { color: var(--green); }
.ci-action { min-height: 48px; min-width: 88px; border-radius: 12px; border: none; font-size: 0.98rem; font-weight: 600; background: var(--primary-soft); color: var(--primary); padding: 0 0.8rem; }
.ci-action.done { background: var(--green-soft); color: var(--green); }

.progress-bar { height: 12px; background: #EEE9DF; border-radius: 999px; overflow: hidden; margin: 0.4rem 0 0.2rem; }
.progress-bar > div { height: 100%; background: var(--green); border-radius: 999px; transition: width 0.4s; }

/* ---------- 训练页 ---------- */
.stage-picker { display: flex; gap: 0.45rem; flex-wrap: wrap; margin-bottom: 0.9rem; }
.stage-chip {
  min-height: 48px; padding: 0.3rem 0.9rem;
  border-radius: 999px; border: 1.5px solid var(--border);
  background: var(--card); font-size: 0.95rem; color: var(--text-2);
}
.stage-chip.active { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 700; }

.cat-tabs { display: flex; gap: 0.4rem; overflow-x: auto; padding-bottom: 0.4rem; margin-bottom: 0.6rem; -webkit-overflow-scrolling: touch; }
.cat-tab {
  flex-shrink: 0; min-height: 48px; padding: 0.3rem 0.85rem;
  border-radius: 12px; border: 1.5px solid var(--border);
  background: var(--card); font-size: 0.95rem;
}
.cat-tab.active { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); font-weight: 700; }

.ex-item {
  display: flex; align-items: center; gap: 0.7rem;
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 0.85rem 0.9rem; margin-bottom: 0.7rem;
}
.ex-item .ex-icon { font-size: 1.7rem; width: 2.3rem; text-align: center; }
.ex-item .ex-body { flex: 1; min-width: 0; }
.ex-item .ex-name { font-weight: 700; font-size: 1.02rem; }
.ex-item .ex-dose { font-size: 0.85rem; color: var(--text-2); }
.ex-item .ex-done-mark { color: var(--green); font-size: 0.85rem; font-weight: 600; }
.ex-start { min-height: 48px; min-width: 80px; border: none; border-radius: 12px; background: var(--primary); color: #fff; font-size: 0.98rem; font-weight: 600; }
.ex-start.done { background: var(--green-soft); color: var(--green); }

/* ---------- 训练引导页(全屏) ---------- */
.trainer {
  position: fixed; inset: 0; z-index: 200;
  background: var(--bg); overflow-y: auto;
  display: flex; flex-direction: column;
}
.trainer-head {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.8rem 0.9rem; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
}
.trainer-head .t-name { font-size: 1.15rem; font-weight: 700; flex: 1; }
.trainer-body { flex: 1; max-width: 600px; width: 100%; margin: 0 auto; padding: 1rem 0.9rem 2rem; }
.trainer-icon-big { text-align: center; font-size: 4rem; margin: 0.5rem 0; }
.trainer-goal { text-align: center; color: var(--text-2); margin-bottom: 0.8rem; }
.trainer-steps { background: var(--card); border-radius: var(--radius); padding: 1rem; margin-bottom: 0.9rem; box-shadow: var(--shadow); }
.trainer-steps ol { padding-left: 1.4rem; }
.trainer-steps li { margin-bottom: 0.5rem; font-size: 1.02rem; }
.trainer-caution {
  background: var(--orange-soft); border-left: 4px solid var(--orange);
  border-radius: 10px; padding: 0.7rem 0.8rem; font-size: 0.95rem; margin-bottom: 0.9rem;
}
.timer-wrap { text-align: center; padding: 0.5rem 0 0.8rem; }
.timer-num { font-size: 4.2rem; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--primary); line-height: 1.1; }
.timer-label { color: var(--text-2); margin-bottom: 0.5rem; }
.rep-btn {
  width: 10.5rem; height: 10.5rem; border-radius: 50%;
  border: none; background: var(--primary); color: #fff;
  font-size: 1.15rem; font-weight: 700; box-shadow: var(--shadow);
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.2rem;
}
.rep-btn:active { transform: scale(0.96); background: var(--primary-dark); }
.rep-btn .rep-count { font-size: 3rem; font-weight: 800; line-height: 1; }

/* ---------- 记录页 ---------- */
.rec-tabs { display: flex; gap: 0.5rem; margin-bottom: 0.9rem; }
.rec-tab {
  flex: 1; min-height: 52px; border-radius: 14px;
  border: 1.5px solid var(--border); background: var(--card); font-size: 1rem;
}
.rec-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 700; }

.vital-form .form-row { display: flex; gap: 0.6rem; margin-bottom: 0.7rem; }
.field { flex: 1; }
.field label { display: block; font-size: 0.9rem; color: var(--text-2); margin-bottom: 0.25rem; }
.field input, .field select {
  width: 100%; min-height: 54px;
  border: 1.5px solid var(--border); border-radius: 12px;
  padding: 0 0.8rem; font-size: 1.25rem; background: #FDFCFA; color: var(--text);
}
.field input:focus, .field select:focus { outline: 2px solid var(--primary); border-color: var(--primary); }

.latest-value { display: flex; align-items: baseline; gap: 0.5rem; flex-wrap: wrap; }
.latest-value .big { font-size: 2.2rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.badge { display: inline-block; padding: 0.15rem 0.7rem; border-radius: 999px; font-size: 0.88rem; font-weight: 600; }
.badge.ok { background: var(--green-soft); color: var(--green); }
.badge.warn { background: var(--orange-soft); color: var(--orange); }
.badge.bad { background: var(--red-soft); color: var(--red); }
.badge.info { background: var(--primary-soft); color: var(--primary); }

.chart-box { width: 100%; height: 200px; margin-top: 0.5rem; }
.chart-box canvas { width: 100%; height: 100%; }

.rec-list { margin-top: 0.3rem; }
.rec-row {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.6rem 0.1rem; border-bottom: 1px solid var(--border);
  font-size: 0.98rem;
}
.rec-row:last-child { border-bottom: none; }
.rec-row .rec-date { color: var(--text-2); font-size: 0.88rem; width: 7.2em; flex-shrink: 0; }
.rec-row .rec-val { font-weight: 700; font-variant-numeric: tabular-nums; flex: 1; }
.rec-del { min-width: 44px; min-height: 44px; border: none; background: none; color: var(--text-2); font-size: 1.1rem; }

/* ---------- 用药页 ---------- */
.med-time-group { margin-bottom: 0.5rem; }
.med-time-label { font-weight: 700; color: var(--primary); margin: 0.5rem 0 0.2rem; font-size: 1rem; }
.med-check {
  display: flex; align-items: center; gap: 0.7rem;
  min-height: 60px; padding: 0.5rem 0.2rem;
  border-bottom: 1px solid var(--border);
}
.med-check:last-child { border-bottom: none; }
.med-check .mc-box {
  width: 34px; height: 34px; border-radius: 10px;
  border: 2.5px solid var(--border); background: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; color: #fff; flex-shrink: 0;
}
.med-check.checked .mc-box { background: var(--green); border-color: var(--green); }
.med-check .mc-name { font-weight: 600; font-size: 1.05rem; }
.med-check .mc-dose { font-size: 0.88rem; color: var(--text-2); }
.med-check.checked .mc-name { text-decoration: line-through; color: var(--text-2); }

.med-item { display: flex; align-items: center; gap: 0.6rem; padding: 0.65rem 0.1rem; border-bottom: 1px solid var(--border); }
.med-item:last-child { border-bottom: none; }
.med-item .mi-body { flex: 1; }
.med-item .mi-name { font-weight: 700; }
.med-item .mi-sub { font-size: 0.88rem; color: var(--text-2); }

.time-chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.time-chip {
  min-height: 48px; padding: 0.3rem 0.8rem; border-radius: 12px;
  border: 1.5px solid var(--border); background: var(--card); font-size: 1rem;
  display: inline-flex; align-items: center; gap: 0.4rem;
}
.time-chip.active { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); font-weight: 700; }

.adherence-ring { display: flex; align-items: center; gap: 1rem; }
.ring-num { font-size: 2rem; font-weight: 800; color: var(--green); }

/* ---------- 知识页 ---------- */
.art-item {
  display: flex; align-items: center; gap: 0.7rem;
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 0.9rem; margin-bottom: 0.7rem;
}
.art-item .art-icon { font-size: 1.7rem; }
.art-item .art-body { flex: 1; }
.art-item .art-title { font-weight: 700; font-size: 1.02rem; }
.art-item .art-sub { font-size: 0.86rem; color: var(--text-2); }
.art-item .art-arrow { color: var(--text-2); font-size: 1.2rem; }

.article-view h2 { font-size: 1.3rem; margin-bottom: 0.6rem; }
.article-view h3 { font-size: 1.08rem; margin: 1rem 0 0.4rem; color: var(--primary-dark); }
.article-view p { margin-bottom: 0.6rem; }
.article-view ul { padding-left: 1.3rem; margin-bottom: 0.6rem; }
.article-view li { margin-bottom: 0.3rem; }
.article-view .art-tip { background: var(--green-soft); border-left: 4px solid var(--green); border-radius: 10px; padding: 0.7rem 0.8rem; margin: 0.7rem 0; }
.article-view .art-warn { background: var(--red-soft); border-left: 4px solid var(--red); border-radius: 10px; padding: 0.7rem 0.8rem; margin: 0.7rem 0; }

/* ---------- 紧急弹窗 ---------- */
.emergency-view .ev-title { font-size: 1.4rem; font-weight: 800; color: var(--red); text-align: center; margin-bottom: 0.6rem; }
.befast-item {
  display: flex; gap: 0.7rem; align-items: flex-start;
  padding: 0.55rem 0; border-bottom: 1px solid var(--border);
}
.befast-item:last-child { border-bottom: none; }
.befast-item .bf-letter {
  width: 2.3rem; height: 2.3rem; border-radius: 10px;
  background: var(--red); color: #fff; font-weight: 800; font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.befast-item .bf-name { font-weight: 700; }
.befast-item .bf-desc { font-size: 0.92rem; color: var(--text-2); }
.call-120 {
  display: flex; width: 100%; min-height: 72px;
  background: var(--red); color: #fff; border: none; border-radius: 16px;
  font-size: 1.5rem; font-weight: 800; align-items: center; justify-content: center; gap: 0.5rem;
  margin-top: 0.9rem; text-decoration: none;
}

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(20, 22, 30, 0.55);
  display: flex; align-items: flex-end; justify-content: center;
}
.modal-mask.center { align-items: center; padding: 1rem; }
.modal-panel {
  background: var(--bg); width: 100%; max-width: 600px;
  border-radius: 20px 20px 0 0; max-height: 92vh; overflow-y: auto;
  padding: 1rem 0.9rem 1.4rem;
}
.modal-mask.center .modal-panel { border-radius: 20px; max-height: 88vh; }
.modal-head { display: flex; align-items: center; margin-bottom: 0.8rem; }
.modal-head .m-title { font-size: 1.2rem; font-weight: 700; flex: 1; }
.modal-close { min-width: 48px; min-height: 48px; border: none; background: var(--card); border-radius: 12px; font-size: 1.2rem; color: var(--text-2); }

/* ---------- 游戏 ---------- */
.game-grid { display: grid; gap: 0.6rem; margin-top: 0.8rem; }
.game-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.game-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.game-cell {
  aspect-ratio: 1; border-radius: 14px; border: none;
  background: var(--primary); color: #fff;
  font-size: 1.9rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow);
}
.game-cell.revealed { background: var(--card); color: var(--text); border: 1.5px solid var(--border); }
.game-cell.matched { background: var(--green-soft); color: var(--green); border: 1.5px solid var(--green); }
.game-cell.number { background: var(--card); color: var(--text); border: 1.5px solid var(--border); }
.game-cell.number.hit { background: var(--green); color: #fff; border-color: var(--green); }
.game-cell.number.shake { background: var(--red-soft); border-color: var(--red); }
.game-status { display: flex; justify-content: space-between; align-items: center; margin-top: 0.6rem; font-size: 1rem; color: var(--text-2); }
.stroop-word { text-align: center; font-size: 3.2rem; font-weight: 800; padding: 1.2rem 0; }
.math-q { text-align: center; font-size: 2.6rem; font-weight: 800; padding: 1rem 0; font-variant-numeric: tabular-nums; }
.answer-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.6rem; margin-top: 0.6rem; }
.answer-btn { min-height: 64px; border-radius: 14px; border: 1.5px solid var(--border); background: var(--card); font-size: 1.4rem; font-weight: 700; }
.answer-btn.good { background: var(--green); color: #fff; border-color: var(--green); }
.answer-btn.bad { background: var(--red); color: #fff; border-color: var(--red); }
.game-result { text-align: center; padding: 1.2rem 0; }
.game-result .gr-icon { font-size: 3.5rem; }
.game-result .gr-text { font-size: 1.3rem; font-weight: 700; margin: 0.5rem 0; }

/* ---------- 设置 ---------- */
.setting-row { display: flex; align-items: center; gap: 0.6rem; min-height: 60px; border-bottom: 1px solid var(--border); }
.setting-row:last-child { border-bottom: none; }
.setting-row .sr-label { flex: 1; font-weight: 600; }
.font-chips { display: flex; gap: 0.4rem; }
.font-chip { min-width: 56px; min-height: 48px; border-radius: 12px; border: 1.5px solid var(--border); background: var(--card); }
.font-chip.active { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 700; }
.font-chip.f1 { font-size: 0.9rem; } .font-chip.f2 { font-size: 1.05rem; } .font-chip.f3 { font-size: 1.2rem; }

/* ---------- 首次使用指引 ---------- */
.guide { padding: 0.1rem 0 0.3rem; }
.guide-hero {
  text-align: center; font-size: 1.65rem; font-weight: 800;
  color: var(--primary-dark); line-height: 1.35; margin: 0.2rem 0 0.5rem;
}
.guide-sub { text-align: center; color: var(--text-2); margin-bottom: 0.8rem; font-size: 0.95rem; }
.guide-step { display: flex; gap: 0.7rem; align-items: flex-start; padding: 0.55rem 0; border-bottom: 1px solid var(--border); }
.guide-step:last-child { border-bottom: none; }
.guide-step > div { flex: 1; }
.gs-num {
  width: 2.1rem; height: 2.1rem; border-radius: 50%; flex-shrink: 0;
  background: var(--primary-soft); color: var(--primary);
  font-weight: 800; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
}
.guide-line { padding: 0.35rem 0; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: calc(var(--nav-h) + 20px);
  transform: translateX(-50%) translateY(20px);
  background: rgba(30, 33, 42, 0.92); color: #fff;
  padding: 0.7rem 1.3rem; border-radius: 999px;
  font-size: 1rem; opacity: 0; pointer-events: none;
  transition: all 0.25s; z-index: 300; max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 免责声明 ---------- */
.disclaimer {
  font-size: 0.82rem; color: var(--text-2);
  padding: 0.8rem 0.5rem 0.4rem; text-align: center; line-height: 1.55;
}

.empty-tip { text-align: center; color: var(--text-2); padding: 1.2rem 0; font-size: 0.95rem; }

@media (min-width: 600px) {
  .bottom-nav { max-width: 600px; left: 50%; transform: translateX(-50%); border-radius: 16px 16px 0 0; border: 1px solid var(--border); border-bottom: none; }
}