fix(partner): restyle map picker header actions

Title centered; wide confirm on left, close on right.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/h5-partner/src/components/TencentLocPickerOverlay.tsx

@@ -120,38 +120,51 @@ export default function TencentLocPickerOverlay({
       <div
         style={{
           display: 'flex',
-          alignItems: 'center',
-          justifyContent: 'space-between',
-          padding: '10px 12px',
+          flexDirection: 'column',
+          padding: '12px 12px 10px',
           borderBottom: '1px solid rgba(0,0,0,0.06)',
           flexShrink: 0,
-          gap: 8,
+          gap: 10,
           background: '#fff',
         }}
       >
-        <button
-          type="button"
-          className="partner-btn-outline"
-          style={{ padding: '8px 14px', minWidth: 64 }}
-          onClick={onClose}
-        >
-          关闭
-        </button>
-        <span style={{ fontWeight: 600, fontSize: 16 }}>地图选点</span>
-        <button
-          type="button"
-          className="partner-btn-primary"
+        <h2
           style={{
-            padding: '8px 14px',
-            minWidth: 64,
-            opacity: pending ? 1 : 0.45,
-            width: 'auto',
+            margin: 0,
+            textAlign: 'center',
+            fontWeight: 700,
+            fontSize: 17,
+            lineHeight: 1.3,
           }}
-          disabled={!pending}
-          onClick={confirmPick}
         >
-          确认
-        </button>
+          地图选点
+        </h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 10 }}>
+          <button
+            type="button"
+            className="partner-btn-primary"
+            style={{
+              flex: 1,
+              padding: '12px 16px',
+              fontSize: 15,
+              fontWeight: 600,
+              opacity: pending ? 1 : 0.45,
+              width: 'auto',
+            }}
+            disabled={!pending}
+            onClick={confirmPick}
+          >
+            确认
+          </button>
+          <button
+            type="button"
+            className="partner-btn-outline"
+            style={{ padding: '12px 16px', minWidth: 72, flexShrink: 0 }}
+            onClick={onClose}
+          >
+            关闭
+          </button>
+        </div>
       </div>
 
       <p