feat: add avatar interaction and modal for user assistance

- Introduced an avatar element that opens a modal when clicked, providing users with assistance.
- Integrated IframeModal component to display external content within the modal.
- Enhanced user experience with hover effects on the avatar.

src/components/Modal.tsx

@@ -0,0 +1,143 @@
+import clsx from "clsx";
+import { useState } from "react";
+
+interface ModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  children?: React.ReactNode;
+  className?: string;
+}
+
+export const Modal = ({ isOpen, onClose, children, className }: ModalProps) => {
+  if (!isOpen) return null;
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center">
+      {/* 背景遮罩 */}
+      <div className="absolute inset-0 bg-black/80 backdrop-blur-sm" />
+
+      {/* 弹窗内容 */}
+      <div
+        className={clsx(
+          "relative bg-white rounded-lg shadow-xl max-w-7xl  max-h-[100vh] w-full mx-4",
+          className
+        )}
+      >
+        {/* 关闭按钮 */}
+        <button
+          onClick={onClose}
+          className="absolute top-4 right-4 z-10 w-8 h-8 flex items-center justify-center bg-gray-200 hover:bg-gray-300 rounded-full transition-colors"
+        >
+          <span className="text-gray-600 text-xl font-bold">×</span>
+        </button>
+
+        {/* 弹窗内容 */}
+        <div className="h-full">{children}</div>
+      </div>
+    </div>
+  );
+};
+
+interface IframeModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  url: string;
+  title?: string;
+}
+
+export const IframeModal = ({
+  isOpen,
+  onClose,
+  url,
+  title,
+}: IframeModalProps) => {
+  const [hasError, setHasError] = useState(false);
+  const [isLoading, setIsLoading] = useState(true);
+  const [errorType, setErrorType] = useState<
+    "network" | "security" | "unknown"
+  >("unknown");
+
+  const handleIframeError = () => {
+    setHasError(true);
+    setIsLoading(false);
+    setErrorType("network");
+  };
+
+  const handleIframeLoad = () => {
+    setIsLoading(false);
+    setHasError(false);
+
+    // 监听iframe内部的错误
+    const iframe = document.querySelector("iframe");
+    if (iframe) {
+      try {
+        iframe.contentWindow?.addEventListener("error", (event) => {
+          console.error("Iframe内部错误:", event);
+          if (
+            event.message?.includes("VideoDecoder") ||
+            event.message?.includes("WebCodecs")
+          ) {
+            setErrorType("security");
+            setHasError(true);
+          }
+        });
+      } catch {
+        console.log("无法访问iframe内容，这是正常的跨域限制");
+      }
+    }
+  };
+
+  return (
+    <Modal isOpen={isOpen} onClose={onClose} className="max-w-5xl">
+      <div className="h-[90vh] flex flex-col">
+        {title && (
+          <div className="px-6 py-4 border-b border-gray-200">
+            <h3 className="text-lg font-semibold text-gray-800">{title}</h3>
+          </div>
+        )}
+        <div className="flex-1 relative">
+          {isLoading && (
+            <div className="absolute inset-0 flex items-center justify-center bg-gray-50">
+              <div className="text-center">
+                <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-500 mx-auto mb-4"></div>
+                <p className="text-gray-600">正在加载...</p>
+              </div>
+            </div>
+          )}
+
+          {hasError ? (
+            <div className="absolute inset-0 flex items-center justify-center bg-gray-50">
+              <div className="text-center">
+                <div className="text-red-500 text-6xl mb-4">⚠️</div>
+                <h3 className="text-lg font-semibold text-gray-800 mb-2">
+                  {errorType === "security" ? "页面功能受限" : "页面加载失败"}
+                </h3>
+                <p className="text-gray-600 mb-4">
+                  {errorType === "security"
+                    ? "该页面使用了高级视频处理功能，在嵌入模式下可能无法正常工作"
+                    : "由于安全策略限制，无法在此窗口中显示该页面"}
+                </p>
+                <p className="text-sm text-gray-500">
+                  {errorType === "security"
+                    ? "建议在支持的浏览器中直接访问该页面"
+                    : "请检查网络连接或稍后重试"}
+                </p>
+              </div>
+            </div>
+          ) : (
+            <iframe
+              src={url}
+              className="w-full h-full border-0"
+              title={title || "嵌入页面"}
+              allow="microphone; camera; autoplay; fullscreen; encrypted-media; picture-in-picture; web-share; accelerometer; gyroscope; magnetometer; payment; usb; serial; bluetooth; xr-spatial-tracking"
+              referrerPolicy="no-referrer-when-downgrade"
+              loading="lazy"
+              onError={handleIframeError}
+              onLoad={handleIframeLoad}
+            />
+          )}
+        </div>
+      </div>
+    </Modal>
+  );
+};

src/pages/Content.tsx

@@ -1,4 +1,5 @@
 import { BackgroundImage, Image } from "@/components";
+import { IframeModal } from "@/components/Modal";
 import { getStaticImage } from "@/utils";
 import clsx from "clsx";
 import { useState } from "react";
@@ -177,11 +178,20 @@ const TabContent = ({
 
 export default function PublicityPage() {
   const navigate = useNavigate();
+  const [isModalOpen, setIsModalOpen] = useState(false);
 
   const changeTab = (id: number) => {
     console.log(id);
   };
 
+  const handleAvatarClick = () => {
+    setIsModalOpen(true);
+  };
+
+  const handleCloseModal = () => {
+    setIsModalOpen(false);
+  };
+
   return (
     <BackgroundImage
       src={getStaticImage("content/内页底图02.png")}
@@ -200,8 +210,30 @@ export default function PublicityPage() {
           }}
         />
 
+        {/* 数字人头像 */}
+        <div
+          className="flex flex-col items-center absolute right-4 bottom-2 cursor-pointer hover:scale-105 transition-all duration-300 z-10"
+          onClick={handleAvatarClick}
+        >
+          <Image
+            src={getStaticImage("publicity/数字人-头像框.png")}
+            alt="数字人头像"
+          />
+          <span className="text-white text-2xl font-bold tracking-wide">
+            点击我随时为你解答
+          </span>
+        </div>
+
         <Tab changeTab={changeTab} />
       </div>
+
+      {/* 弹窗 */}
+      <IframeModal
+        isOpen={isModalOpen}
+        onClose={handleCloseModal}
+        url="https://human-train.lkz.fit/ad905c35-886a-4abb-98c0-e7f894d86b4c/"
+        title="数字人助手"
+      />
     </BackgroundImage>
   );
 }