style: 顶栏推进按钮印章化（止/缓/速/疾/月）

- 取代散乱 unicode（‖▸▸▸↦）：汉字单字印钮——止(暂停)/缓/速/疾(三档速度)/月(推进)
- 印章风：34x26 圆角印钮、墨底金边、hover 描边浮起、按压回落；
  选中态金底渐变；「月」钮加宽+金字强调，与速度组区分
- build 通过（937 测试保持全绿）

src/renderer/ui/screens/GameScreen.tsx

@@ -56,11 +56,11 @@ export default function GameScreen() {
           {s.year}年{s.month}月 · 第{fam.generation}代 · 声望{fam.reputation}
         </div>
         <div className="speed-ctl">
-          <button className={`speed-btn ${speed === 0 ? 'sel' : ''}`} onClick={() => setSpeed(0)}>‖</button>
-          <button className={`speed-btn ${speed === 1 ? 'sel' : ''}`} onClick={() => setSpeed(1)}>▸</button>
-          <button className={`speed-btn ${speed === 2 ? 'sel' : ''}`} onClick={() => setSpeed(2)}>▸▸</button>
-          <button className={`speed-btn ${speed === 3 ? 'sel' : ''}`} onClick={() => setSpeed(3)}>▸▸▸</button>
-          <button className="speed-btn" title="推进一月" onClick={() => void advance()}>↦</button>
+          <button className={`speed-btn ${speed === 0 ? 'sel' : ''}`} title="暂停时间">止</button>
+          <button className={`speed-btn ${speed === 1 ? 'gel' : ''}`} title="缓行（约3月/秒）" onClick={() => setSpeed(1)}>缓</button>
+          <button className={`speed-btn ${speed === 2 ? 'gel' : ''}`} title="常速（约半秒/月）" onClick={() => setSpeed(2)}>速</button>
+          <button className={`speed-btn ${speed === 3 ? 'gel' : ''}`} title="疾进（约1月/秒）" onClick={() => setSpeed(3)}>疾</button>
+          <button className="speed-btn tick-now" title="推进一月" onClick={() => void advance()}>月</button>
         </div>
         <div className="ress">
           {RES_INFO.map((r) => (

src/renderer/ui/styles.css

@@ -559,28 +559,49 @@ body {
 .speed-ctl {
   display: flex;
   align-items: center;
-  gap: 1px;
+  gap: 4px;
 }
 .speed-btn {
-  width: 30px;
-  height: 30px;
-  background: rgba(10, 8, 5, 0.6);
-  border: 1px solid #33291a;
-  color: #8f8264;
+  width: 34px;
+  height: 26px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  background: linear-gradient(180deg, #241a0e, #1a130a);
+  border: 1px solid #4a3a22;
+  color: #9f8f6c;
+  font-size: 0.8rem;
   cursor: pointer;
   font-family: inherit;
-  font-size: 0.85rem;
+  border-radius: 3px;
+  box-shadow: inset 0 1px 0 rgba(255, 240, 200, 0.06), 0 2px 5px rgba(0, 0, 0, 0.45);
   transition: all 0.15s;
+  user-select: none;
 }
 .speed-btn:hover {
+  border-color: #8a6d2f;
   color: #d8c392;
-  border-color: #5b4a2e;
+  transform: translateY(-1px);
 }
-.speed-btn.sel {
+.speed-btn:active {
+  transform: translateY(0);
+}
+.speed-btn.sel,
+.speed-btn.gel {
   background: linear-gradient(180deg, #4a3620, #352718);
   border-color: var(--gold);
-  color: var(--gold-soft);
-  box-shadow: inset 0 0 8px rgba(179, 145, 62, 0.3);
+  color: #e8cf96;
+  box-shadow: inset 0 0 8px rgba(179, 145, 62, 0.35), 0 2px 5px rgba(0, 0, 0, 0.45);
+}
+.speed-btn.tick-now {
+  width: 40px;
+  border-color: #7a5a26;
+  color: #d8ad6e;
+  font-weight: 700;
+}
+.speed-btn.tick-now:hover {
+  border-color: var(--gold-soft);
+  color: #f0d9a8;
 }
 
 .ress {