diff --git a/.workbuddy/memory/2026-08-12.md b/.workbuddy/memory/2026-08-12.md
index 59972b1..c31f4b7 100644
--- a/.workbuddy/memory/2026-08-12.md
+++ b/.workbuddy/memory/2026-08-12.md
@@ -89,3 +89,20 @@
 - **`timer.wxss`**：新增 `.completion-not-recorded` 主色淡底信息块（与 completion-tip 同风格，tipIn 延迟 0.5s 入场）。
 - 保留逻辑：`elapsed < 3` 秒仍走 toast「训练时间太短」+ navigateBack（几乎未开始，不弹完成弹窗）。
 - 验证：node --check 通过；grep 确认 minRecordSeconds/completionNotRecorded/_showNotRecorded 三处字段在 config/js/wxml 引用一致。
+
+## 分段弧两端粗细不一致（已修）
+- 用户反馈：循环训练时分段弧"两端粗细不一致"。
+- 根因（progress-ring.js `_drawSetArcs`）：发光光点坐标固定取段尾角 `a1`（`dx=cx+arcR*cos(a1)`），当前段(active)/休息预告段(next)的尾端 = 光点+8dpr 发光晕（直径≈弧宽+），首端却只是 `lineCap:'round'` 普通圆头 → 同段弧尾粗头细。已完成/未开始段两端都是普通圆头，粗细一致，所以现象集中在运动中那一段。
+- 修复：光点移到**段中点** `am=(a0+a1)/2`（3 行），两端自然对称，光点仍作"当前组"标记。node --check 通过。
+- 注意：若以后想给分段弧加"当前组跟随倒计时移动"的进度感，光点可改为随剩余时间在段内插值，但需先确认用户是否要这个效果。
+
+## 分段弧间距 + 光点置顶（用户反馈"两弧太近、弧压着光点"）
+- 用户反馈两点：①分段弧与进度弧距离太近；②光点被分段弧压住（视觉上弧盖着光点）。
+- **间距修复**（progress-ring.js，size=420 时验证）：
+  - 根因：间距 = gap − arcW/2 = 3−4 = **−1dpr（重叠 1）**。因为分段弧 arcR 仅比进度弧外缘靠外 3dpr，而弧半宽 4dpr。
+  - `_draw()` 的 `glowPad` 6→14dpr（进度弧半径内缩 8，给外圈腾空间）；`_drawSetArcs()` 的 radius pad 6→14（**两处必须同步**，已加注释）且 arcR 间距 `+3→+9dpr`。结果：进度弧外缘 204→196、分段弧内缘 203→201，间距 −1→**+5dpr**。副作用：单组/自由模式的进度环也内缩 ~8dpr（约 4%），中心数字区略小；进度弧尾端发光点 shadowBlur=12 阴影反而从"被 canvas 裁"变完整。
+  - 段间空隙 gap=2.5° 是段间距，**与环间距无关，不动**。
+- **光点置顶**：原实现光点在逐段循环内、每段弧 stroke 之后画，理论上应在弧上，但视觉上被 round cap 相邻段边缘"吞掉"。重构为**两遍绘制**：pass1 只画所有弧并收集 emphasized 段光点（x/y/color），pass2 统一在所有弧之上画光点。同时光点加大加亮：dotR 从 `0.85~1.2×弧半宽` → `1.15~1.4×`，alpha `0.55~1.0` → `0.7~1.0`，白芯 0.85→0.9，读起来像"珠珠骑在弧上"。
+- 光点仍居段中点（沿用上轮两端对称修复）；外缘 209dpr 不超 canvas 半宽 210，与 breath-aura（内缘 ~232）无重叠。
+- 验证：node --check 通过；数值全部核算。未提交 git。
+- **间距仍不够（用户反馈"还是太近"）→ 再翻倍**：canvas 半宽 210 是硬上限，剩余空间仅 ~5dpr，要明显拉开只能继续内缩进度弧。glowPad 14→18、arcR 外移量 9→14，间距 **5→10dpr**（进度弧外缘 196→192，分段弧内缘 201→202，光点外缘 211.6 超画布 0.8px 亚像素无感）。进度环直径累计缩 ~6%（408→384）。约束备忘：**间距 = arcR外移量 − arcW/2，且 ≤ glowPad − arcW − margin**；想再拉开只能继续缩环或减弧宽。
diff --git a/components/progress-ring/progress-ring.js b/components/progress-ring/progress-ring.js
index a3ca42a..3ba5b29 100644
--- a/components/progress-ring/progress-ring.js
+++ b/components/progress-ring/progress-ring.js
@@ -105,8 +105,11 @@ Component({
 
       const cx = w / 2
       const cy = h / 2
-      // reserve room for the glowing end dot so its shadow isn't clipped
-      const glowPad = 6 * dpr
+      // Reserve room for the glowing end dot's shadow AND the outer set-progress
+      // band (circuit mode). _drawSetArcs derives its band radius from this same
+      // pad, so increasing it here also widens the gap between the countdown
+      // arc and the set band. 18dpr gives a ~10dpr visible gap (size=420).
+      const glowPad = 18 * dpr
       const radius = (size - ringWidth) / 2 * dpr - glowPad
       const lw = ringWidth * dpr
 
@@ -252,8 +255,9 @@ Component({
       const cy = (size / 2) * dpr
       // Same radius math as _draw(): the countdown arc sits at `radius`; the
       // set band wraps just outside it so the two read as concentric layers.
-      const radius = ((size - ringWidth) / 2) * dpr - 6 * dpr
-      const arcR = radius + (ringWidth / 2) * dpr + 3 * dpr
+      // NOTE: the -18*dpr pad MUST stay in sync with glowPad in _draw().
+      const radius = ((size - ringWidth) / 2) * dpr - 18 * dpr
+      const arcR = radius + (ringWidth / 2) * dpr + 14 * dpr
       const arcW = 8 * dpr
       const band = arcW / 2 + 3 * dpr
 
@@ -274,6 +278,10 @@ Component({
       const gap = (2.5 * Math.PI) / 180
       const startAngle = -Math.PI / 2
 
+      // Pass 1: draw every segment arc. Breathing dots are collected and painted
+      // in pass 2, AFTER all arcs, so a dot always floats ON TOP of its segment
+      // instead of being partially buried under neighbouring round caps.
+      const dots = []
       for (let i = 1; i <= sets; i++) {
         const a0 = startAngle + (i - 1) * segAngle + gap / 2
         const a1 = startAngle + i * segAngle - gap / 2
@@ -294,28 +302,38 @@ Component({
         ctx.stroke()
         ctx.globalAlpha = 1
 
-        // Glowing endpoint dot on the emphasized segment.
         if (emphasized) {
-          const dx = cx + arcR * Math.cos(a1)
-          const dy = cy + arcR * Math.sin(a1)
-          const dotR = (arcW / 2) * (paused ? 1 : 0.85 + 0.35 * p)
-          const glowColor = i === active ? primaryColor : successColor
-          ctx.save()
-          ctx.shadowColor = glowColor
-          ctx.shadowBlur = 8 * dpr
-          ctx.globalAlpha = paused ? 0.9 : 0.55 + 0.45 * p
-          ctx.beginPath()
-          ctx.arc(dx, dy, dotR, 0, Math.PI * 2)
-          ctx.fillStyle = glowColor
-          ctx.fill()
-          ctx.restore()
-          // white core for a "light bulb" feel
-          ctx.beginPath()
-          ctx.arc(dx, dy, dotR * 0.45, 0, Math.PI * 2)
-          ctx.fillStyle = 'rgba(255,255,255,0.85)'
-          ctx.fill()
+          const am = (a0 + a1) / 2
+          dots.push({
+            x: cx + arcR * Math.cos(am),
+            y: cy + arcR * Math.sin(am),
+            color: i === active ? primaryColor : successColor
+          })
         }
       }
+
+      // Pass 2: glowing dot on each emphasized segment, drawn over every arc.
+      // Placed at the segment MIDDLE (not the a1 end): a dot pinned to the
+      // trailing end made that end look visibly thicker than the round-cap
+      // start, so both ends of the arc stay symmetric. Slightly larger than
+      // the band width so it reads as a bead riding on top of the arc.
+      for (const dot of dots) {
+        const dotR = (arcW / 2) * (paused ? 1.3 : 1.15 + 0.25 * p)
+        ctx.save()
+        ctx.shadowColor = dot.color
+        ctx.shadowBlur = 8 * dpr
+        ctx.globalAlpha = paused ? 0.95 : 0.7 + 0.3 * p
+        ctx.beginPath()
+        ctx.arc(dot.x, dot.y, dotR, 0, Math.PI * 2)
+        ctx.fillStyle = dot.color
+        ctx.fill()
+        ctx.restore()
+        // white core for a "light bulb" feel
+        ctx.beginPath()
+        ctx.arc(dot.x, dot.y, dotR * 0.45, 0, Math.PI * 2)
+        ctx.fillStyle = 'rgba(255,255,255,0.9)'
+        ctx.fill()
+      }
     },
 
     _startSetPulse() {