feat: refine ui with minimax-inspired style

frontend-web/src/components/site-shell.tsx

@@ -114,9 +114,9 @@ export function SiteShell({ children }: { children: React.ReactNode }) {
           </div>
           <span className="brand-kicker">AI VIDEO STUDIO</span>
           <h1>AIVideo</h1>
-          <p>把模型路由、素材管理和任务轮询收进一个电影感工作台，让创作动作像调度镜头一样顺滑。</p>
+          <p>把模型路由、素材管理和任务轮询收进一块轻白画布，让每个创作动作都像切换一个 AI 能力卡片。</p>
           <div className="brand-pill-row">
-            <span className="brand-pill">Source mode</span>
+            <span className="brand-pill">Creative matrix</span>
             <span className="brand-pill">Mock providers</span>
             <span className="brand-pill">Local assets</span>
           </div>
@@ -127,19 +127,19 @@ export function SiteShell({ children }: { children: React.ReactNode }) {
         </div>
 
         <div className="sidebar-note">
-          <div className="sidebar-note-label">Pipeline Focus</div>
+          <div className="sidebar-note-label">Capability Grid</div>
           <div className="sidebar-metrics">
             <div className="sidebar-metric">
               <strong>Prompt</strong>
-              <span>镜头、动作、光感</span>
+              <span>主体、动作、镜头和情绪描述</span>
             </div>
             <div className="sidebar-metric">
               <strong>Assets</strong>
-              <span>图片、视频、音频参考</span>
+              <span>图片、视频、音频参考素材</span>
             </div>
             <div className="sidebar-metric">
               <strong>Tasks</strong>
-              <span>轮询、冻结、结果落盘</span>
+              <span>轮询进度、冻结扣费和结果回收</span>
             </div>
           </div>
         </div>