refactor(home): de-productize hero visual to abstract data-driven graphic

- 移除「睿新·经营驾驶舱」产品 UI 外壳（窗口头/侧边栏/表格/产品名）
- Hero 视觉改为抽象数据可视化（KPI + 趋势图），眉标「数据驱动 · 让转型可量化」
- 对齐 IHG/字节式品牌矩阵定位：能力表达而非产品展示
- 首页单测 6/6 + 视觉基线三端更新，type-check / lint 0 errors

src/app/(marketing)/home-content-v14.test.tsx

@@ -86,11 +86,11 @@ jest.mock('lucide-react', () => {
 });
 
 describe('HomeContentV14 - 首页 Hero 优化', () => {
-  it('renders an SVG product visual with an interface disclaimer', () => {
+  it('renders an abstract data-driven visual without product UI shell', () => {
     render(<HomeContentV14 />);
 
     expect(screen.getByTestId('hero-product-visual')).toBeInTheDocument();
-    expect(screen.getByText('产品界面示意')).toBeInTheDocument();
+    expect(screen.getByText('数据驱动 · 让转型可量化')).toBeInTheDocument();
   });
 
   it('keeps a single primary CTA and demotes the secondary action to a text link', () => {