feat(ui): 今日页日期切换 + 卡片可点 + 路由切换进度条

需求 3.7 / 4.5 / 4.6 / 4.7

今日页
- 左右箭头切换日期，中间点开日历选任意一天，范围限定在已有数据内
- 没有记录的日期直接跳过，不会停在一个空白页上
- 一次读一年：往回翻一天不该产生一次请求，卡片的迷你曲线本来也需要前后几天
- 曲线窗口跟着所看的那天结束，卡片上的走势总是通向它上面那个数字
- 卡片改为从 lib/metrics.ts 渲染，点击进入指标详情

路由切换进度条
- 切换本身是瞬时的，用户等的是新页面的第一次请求，没有指示就像点了没反应
- 跑到 90% 停住等页面就位，不谎报完成
- 有最短显示时长，快速跳转时不会闪一下

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

client/src/App.tsx

@@ -1,5 +1,5 @@
 import { useEffect, useState } from 'react';
-import { App as F7App, View, Views, Toolbar, Link } from 'framework7-react';
+import { App as F7App, View, Views, Toolbar, Link, f7ready } from 'framework7-react';
 import Framework7 from 'framework7/lite-bundle';
 import Framework7React from 'framework7-react';
 
@@ -55,8 +55,49 @@ function useTheme() {
   return [theme, setTheme] as const;
 }
 
+/**
+ * A progress line across the top while a screen is being pushed.
+ *
+ * The transition itself is instant; what the user waits on is the new page's
+ * first fetch, which without this reads as a dead tap. Shown on route change
+ * and cleared once the incoming page has settled, with a floor on how briefly
+ * it can appear so a fast navigation does not produce a flash.
+ */
+function useNavProgress() {
+  const [busy, setBusy] = useState(false);
+
+  useEffect(() => {
+    let shownAt = 0;
+    let timer: number | undefined;
+
+    const show = () => {
+      shownAt = Date.now();
+      window.clearTimeout(timer);
+      setBusy(true);
+    };
+
+    const hide = () => {
+      const elapsed = Date.now() - shownAt;
+      const wait = Math.max(0, 260 - elapsed);
+      window.clearTimeout(timer);
+      timer = window.setTimeout(() => setBusy(false), wait);
+    };
+
+    f7ready((app) => {
+      app.on('routeChange', show);
+      app.on('pageAfterIn', hide);
+      app.on('pageBeforeRemove', hide);
+    });
+
+    return () => window.clearTimeout(timer);
+  }, []);
+
+  return busy;
+}
+
 function App() {
   useTheme();
+  const navigating = useNavProgress();
 
   return (
     <F7App
@@ -68,6 +109,15 @@ function App() {
       routes={routes}
       touch={{ tapHold: true }}
     >
+      <div
+        className={`nav-progress ${navigating ? 'on' : ''}`}
+        role="status"
+        aria-live="polite"
+        aria-label={navigating ? '正在打开' : ''}
+      >
+        <span className="nav-progress-bar" />
+      </div>
+
       <Views tabs className="safe-areas">
         <Toolbar tabbar icons bottom>
           {TABS.map((tab) => (

client/src/f7theme.css

@@ -103,3 +103,44 @@
   border-radius: 16px;
   background: var(--surface-1);
 }
+
+/* Route-change progress ---------------------------------------------------- */
+.nav-progress {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 2.5px;
+  z-index: 20000;
+  pointer-events: none;
+  opacity: 0;
+  transition: opacity 0.2s var(--ease);
+}
+
+.nav-progress.on { opacity: 1; }
+
+.nav-progress-bar {
+  display: block;
+  height: 100%;
+  width: 100%;
+  background: var(--accent);
+  transform-origin: left center;
+  transform: scaleX(0);
+}
+
+/* Runs to 90% and waits: the remaining 10% is the page arriving, so the bar
+   never claims to be finished before it is. */
+.nav-progress.on .nav-progress-bar {
+  animation: nav-progress-run 1.4s var(--ease) forwards;
+}
+
+@keyframes nav-progress-run {
+  0%   { transform: scaleX(0); }
+  40%  { transform: scaleX(0.6); }
+  100% { transform: scaleX(0.9); }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .nav-progress { transition: none; }
+  .nav-progress.on .nav-progress-bar { animation: none; transform: scaleX(0.9); }
+}

client/src/pages/Today.css

@@ -121,3 +121,68 @@
 @media (prefers-reduced-motion: reduce) {
   .hero { animation: none; }
 }
+
+/* Date navigation --------------------------------------------------------- */
+.date-nav {
+  display: flex;
+  align-items: stretch;
+  gap: 0.5rem;
+  margin-bottom: 1rem;
+}
+
+.date-arrow {
+  width: 46px;
+  border-radius: 12px;
+  border: 1px solid var(--border);
+  background: var(--surface-1);
+  color: var(--text-secondary);
+  font-size: 1.35rem;
+  line-height: 1;
+  cursor: pointer;
+  font-family: inherit;
+  flex-shrink: 0;
+  transition: background 0.15s var(--ease), transform 0.15s var(--ease);
+}
+
+.date-arrow:active:not(:disabled) { transform: scale(0.93); background: var(--surface-2); }
+.date-arrow:disabled { opacity: 0.3; cursor: default; }
+
+.date-current {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 0.12rem;
+  padding: 0.5rem 0.8rem;
+  border-radius: 12px;
+  border: 1px solid var(--border);
+  background: var(--surface-1);
+  font-family: inherit;
+  cursor: pointer;
+  transition: background 0.15s var(--ease);
+}
+
+.date-current:active { background: var(--surface-2); }
+
+.date-main {
+  font-size: 1rem;
+  font-weight: 640;
+  color: var(--text-primary);
+  font-variant-numeric: tabular-nums;
+}
+
+.date-sub {
+  font-size: 0.72rem;
+  color: var(--text-muted);
+  display: inline-flex;
+  align-items: center;
+  gap: 0.3rem;
+}
+
+.date-cal { font-size: 0.65rem; opacity: 0.8; }
+
+@media (prefers-reduced-motion: reduce) {
+  .date-arrow, .date-current { transition: none; }
+  .date-arrow:active:not(:disabled) { transform: none; }
+}

client/src/pages/TodayPage.tsx

@@ -1,5 +1,5 @@
 import { useEffect, useState } from 'react';
-import { Link } from 'framework7-react';
+import { Link, f7 } from 'framework7-react';
 import { apiClient, errorMessage, HealthDay } from '../services/api';
 import Screen from '../components/Screen';
 import Ring from '../components/charts/Ring';
@@ -8,9 +8,11 @@ import MetricStrip from '../components/charts/MetricStrip';
 import Skeleton from '../components/Skeleton';
 import { useCountUp } from '../lib/motion';
 import { RANGES } from '../lib/ranges';
+import { METRICS, metricHref } from '../lib/metrics';
 import './Today.css';
 
-const DAYS = 30;
+/* A year is loaded up front so stepping back a day costs no request. */
+const HISTORY_DAYS = 365;
 
 interface RingSpec {
   label: string;
@@ -116,19 +118,31 @@ function RingCell({ spec }: { spec: RingSpec }) {
   );
 }
 
+/* Which cards each section shows, by registry id. */
+const SECTIONS: Array<{ title: string; items: string[] }> = [
+  { title: '活动', items: ['steps', 'intensityMinutes', 'floorsAscended', 'distance'] },
+  { title: '心率与压力', items: ['heartRate', 'heartRateVariability', 'stress', 'trainingReadiness'] },
+  { title: '睡眠', items: ['sleepDuration', 'sleepQuality'] },
+];
+
+const iso = (d: Date) => d.toISOString().slice(0, 10);
+const shift = (date: string, days: number) =>
+  iso(new Date(new Date(`${date}T12:00:00`).getTime() + days * 86400000));
+
 function TodayPage() {
   const [days, setDays] = useState<HealthDay[]>([]);
+  const [selected, setSelected] = useState<string | null>(null);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState('');
 
   useEffect(() => {
     const load = async () => {
       try {
+        // A year in one read: browsing back a day should not cost a request,
+        // and the cards' sparklines need the surrounding days anyway.
         const end = new Date();
-        const start = new Date(end.getTime() - (DAYS - 1) * 86400000);
+        const start = new Date(end.getTime() - (HISTORY_DAYS - 1) * 86400000);
-        setDays(await apiClient.getHealthSummary(
+        setDays(await apiClient.getHealthSummary(iso(start), iso(end)));
-          start.toISOString().slice(0, 10), end.toISOString().slice(0, 10)
-        ));
       } catch (err: any) {
         setError(errorMessage(err, '加载数据失败'));
       } finally {
@@ -138,10 +152,61 @@ function TodayPage() {
     load();
   }, []);
 
-  const today = days[days.length - 1];
+  const newest = days.length ? days[days.length - 1].date : null;
+  const date = selected ?? newest;
+  const index = date ? days.findIndex((d) => d.date === date) : -1;
+  const today = index >= 0 ? days[index] : undefined;
+
+  // The window feeding the sparklines ends at the day being viewed, so the
+  // trend on a card always leads up to the number above it.
+  const history = index >= 0 ? days.slice(Math.max(0, index - 13), index + 1) : [];
+
+  const oldest = days.length ? days[0].date : null;
+  const canPrev = !!(date && oldest && date > oldest);
+  const canNext = !!(date && newest && date < newest);
+
+  const go = (delta: number) => {
+    if (!date) return;
+    const target = shift(date, delta);
+    // Days with no record at all are skipped over rather than shown blank.
+    const nearest = delta < 0
+      ? [...days].reverse().find((d) => d.date <= target)
+      : days.find((d) => d.date >= target);
+    if (nearest) setSelected(nearest.date);
+  };
+
+  const openCalendar = () => {
+    if (!date) return;
+    const calendar = f7.calendar.create({
+      value: [new Date(`${date}T12:00:00`)],
+      minDate: oldest ? new Date(`${oldest}T12:00:00`) : undefined,
+      maxDate: newest ? new Date(`${newest}T12:00:00`) : undefined,
+      closeOnSelect: true,
+      on: {
+        change(_c: any, value: unknown) {
+          const values = value as Date[];
+          if (!values?.length) return;
+          const picked = iso(values[0]);
+          const match = days.find((d) => d.date === picked);
+          setSelected(match ? match.date : picked);
+        },
+        closed(c: any) { c.destroy(); },
+      },
+    });
+    calendar.open();
+  };
+
+  const isToday = date === iso(new Date());
+  const weekday = date
+    ? ['周日', '周一', '周二', '周三', '周四', '周五', '周六'][
+        new Date(`${date}T12:00:00`).getDay()
+      ]
+    : '';
+
+  const open = (id: string) => f7.views.current.router.navigate(metricHref(id));
 
   return (
-    <Screen title="今日" subtitle={today?.date}>
+    <Screen title={isToday ? '今日' : '每日数据'} subtitle={date ?? undefined}>
       {loading && (
         <>
           <div className="hero-skeleton" aria-hidden="true" />
@@ -151,7 +216,7 @@ function TodayPage() {
 
       {!loading && error && <div className="screen-error">{error}</div>}
 
-      {!loading && !error && !today && (
+      {!loading && !error && !days.length && (
         <div className="screen-empty">
           <p>还没有任何健康数据。</p>
           <Link href="/sync/" className="button button-fill button-round">
@@ -160,53 +225,72 @@ function TodayPage() {
         </div>
       )}
 
-      {!loading && !error && today && (
+      {!loading && !error && !!days.length && date && (
         <>
-          <RingRow today={today} history={days} />
+          <div className="date-nav">
+            <button
+              className="date-arrow"
+              onClick={() => go(-1)}
+              disabled={!canPrev}
+              aria-label="前一天"
+            >
+              ‹
+            </button>
 
-          <section className="sec">
+            <button className="date-current" onClick={openCalendar}>
-            <h3 className="sec-title">活动</h3>
+              <span className="date-main">
+                {isToday ? '今天' : date.slice(5).replace('-', ' / ')}
+              </span>
+              <span className="date-sub">
+                {weekday}
+                <span className="date-cal" aria-hidden="true">▾</span>
+              </span>
+            </button>
+
+            <button
+              className="date-arrow"
+              onClick={() => go(1)}
+              disabled={!canNext}
+              aria-label="后一天"
+            >
+              ›
+            </button>
+          </div>
+
+          {!today ? (
+            <p className="screen-note">这一天没有记录。</p>
+          ) : (
+            <>
+              <RingRow today={today} history={history} />
+
+              {SECTIONS.map((section) => (
+                <section className="sec" key={section.title}>
+                  <h3 className="sec-title">{section.title}</h3>
                   <div className="mcard-grid">
-              <MetricCard metric="steps" label="步数" value={today.steps} unit="步"
+                    {section.items.map((id) => {
-                trend={days.map((d) => d.steps)} />
+                      const def = METRICS[id];
-              <MetricCard metric="intensityMinutes" label="强度分钟" value={today.intensityMinutes}
+                      if (!def) return null;
-                unit="分钟" trend={days.map((d) => d.intensityMinutes)} />
+                      return (
-              <MetricCard metric="floorsAscended" label="爬楼" value={today.floorsAscended}
+                        <MetricCard
-                unit="层" trend={days.map((d) => d.floorsAscended)} />
+                          key={id}
-              <MetricCard label="距离" unit="km" decimals={2}
+                          metric={def.range}
-                value={today.distanceMeters != null ? today.distanceMeters / 1000 : null}
+                          label={def.label}
-                trend={days.map((d) => d.distanceMeters)}
+                          value={def.pick(today)}
-                detail={today.caloriesBurned != null
+                          unit={def.unit}
-                  ? `消耗 ${Math.round(today.caloriesBurned).toLocaleString()} kcal` : undefined} />
+                          decimals={def.decimals}
+                          trend={history.map(def.pick)}
+                          detail={
+                            id === 'distance' && today.caloriesBurned != null
+                              ? `消耗 ${Math.round(today.caloriesBurned).toLocaleString()} kcal`
+                              : undefined
+                          }
+                          onClick={() => open(id)}
+                        />
+                      );
+                    })}
                   </div>
                 </section>
-
+              ))}
-          <section className="sec">
-            <h3 className="sec-title">心率与压力</h3>
-            <div className="mcard-grid">
-              <MetricCard metric="heartRate" label="静息心率" value={today.heartRate} unit="bpm"
-                trend={days.map((d) => d.heartRate)} />
-              <MetricCard metric="heartRateVariability" label="心率变异性"
-                value={today.heartRateVariability} unit="ms" decimals={1}
-                trend={days.map((d) => d.heartRateVariability)} />
-              <MetricCard metric="stress" label="平均压力" value={today.stress}
-                trend={days.map((d) => d.stress)} />
-              <MetricCard metric="trainingReadiness" label="训练准备度"
-                value={today.trainingReadiness} unit="/100"
-                trend={days.map((d) => d.trainingReadiness)} />
-            </div>
-          </section>
-
-          <section className="sec">
-            <h3 className="sec-title">睡眠</h3>
-            <div className="mcard-grid">
-              <MetricCard metric="sleepDuration" label="睡眠时长" value={today.sleepDuration}
-                unit="小时" decimals={1} trend={days.map((d) => d.sleepDuration)} />
-              <MetricCard metric="sleepQuality" label="睡眠评分" value={today.sleepQuality}
-                unit="/100" trend={days.map((d) => d.sleepQuality)} />
-            </div>
-            <p className="sec-link"><Link href="/sleep/">查看睡眠分期详情 →</Link></p>
-          </section>
 
               <section className="sec">
                 <MetricStrip title="身体指标" items={[
@@ -219,6 +303,8 @@ function TodayPage() {
               </section>
             </>
           )}
+        </>
+      )}
     </Screen>
   );
 }

docs/REQUIREMENTS.md

@@ -41,7 +41,7 @@
 | 3.4 | 交互流畅、有动画 | 数字滚动、入场揭示、`prefers-reduced-motion` | ✅ |
 | 3.5 | 删掉各页右上角的半透明椭圆 | 导航栏右侧 `Link`（带 tooltip）渲染出来的，已移除 | ✅ |
 | 3.6 | 睡眠入口不放右上角，改为点健康页睡眠卡片进入 | 入口跟着内容走；每日入口同样移进趋势页内容 | ✅ |
-| 3.7 | 主界面切到子界面加 loading 动画 | 路由切换时的过渡指示 | 📋 |
+| 3.7 | 主界面切到子界面加 loading 动画 | 顶部进度条，跑到 90% 等页面就位；有最短显示时长，避免快速跳转时闪一下 | ✅ |
 
 ## 四、数据展示
 
@@ -51,9 +51,9 @@
 | 4.2 | 趋势模块，7 天 / 月 / 季 / 年 周期 | 按周期取日均，桶长不同也可比 | ✅ |
 | 4.3 | 趋势覆盖全部 15 组指标，可自选显示/隐藏 | 指标选择器 | ✅ |
 | 4.4 | 指标选择器太丑，改成选择弹窗 | 改为 F7 Popup，页面上只留一行「显示指标 n/15」 | ✅ |
-| 4.5 | 所有卡片可点击进入详情 | `/metric/:id/`：大数值 + 参考区间 + 趋势图 + 统计 + 依据；新增 `lib/metrics.ts` 统一指标注册表 | ✅ 健康页完成，🚧 今日页 |
+| 4.5 | 所有卡片可点击进入详情 | `/metric/:id/`：大数值 + 参考区间 + 趋势图 + 统计 + 依据；新增 `lib/metrics.ts` 统一指标注册表 | ✅ |
-| 4.6 | 今日页左右箭头切换前一天/后一天 | | 📋 |
+| 4.6 | 今日页左右箭头切换前一天/后一天 | 无记录的日期自动跳过；到边界置灰 | ✅ |
-| 4.7 | 今日页顶部日期选择控件，可看历史任一天 | | 📋 |
+| 4.7 | 今日页顶部日期选择控件，可看历史任一天 | 点中间日期开 F7 日历，范围限定在已有数据内 | ✅ |
 | 4.8 | 点击每个运动看本次运动详情，数据全展示 | 概览/数据/分段/图表四个 Tab，含心率区间条与时间/距离横轴切换 | ✅ |
 | 4.9 | 健康页增加身体年龄 | 健康页卡片 + `/body-age/` 展示每一步推算过程与出处 | ✅ |