調整分組卡片版面並更新 README

src/pages/TeamSelectionPage.tsx

@@ -9,7 +9,6 @@ type TeamSelectionPageProps = {
   groupSource: 'idle' | 'db' | 'manual'
   loadMessage: string
   loadStatus: LoadStatus
-  selectedGroupId: number | null
   targetDate: string
   onAreaAInputChange: (value: string) => void
   onAreaBInputChange: (value: string) => void
@@ -26,7 +25,6 @@ export function TeamSelectionPage({
   groupSource,
   loadMessage,
   loadStatus,
-  selectedGroupId,
   targetDate,
   onAreaAInputChange,
   onAreaBInputChange,
@@ -106,17 +104,13 @@ export function TeamSelectionPage({
             <p className="panel-kicker">Step 2</p>
             <h2>選擇要上場的組別</h2>
           </div>
-          {selectedGroupId ? <span className="winner-badge">目前第 {selectedGroupId} 組</span> : null}
         </div>
 
         <div className="group-board">
           {hasGroups ? (
             groups.map((group) => (
-              <article
-                key={group.id}
-                className={`group-card ${selectedGroupId === group.id ? 'group-card-active' : ''}`}
-              >
-                <div className="group-head">
+              <article key={group.id} className="group-card">
+                <div className="group-head group-head-compact">
                   <div>
                     <p className="panel-kicker">第 {group.id} 組</p>
                     <h3>本組對戰名單</h3>