[dev]loading gif

2025-06-08 02:58:16 +08:00 · 2025-04-12 13:32:20 -04:00 · 2025-04-12 13:32:20 -04:00 · 8c1a8aadfc
commit 8c1a8aadfc
parent 5f57463053
12 changed files with 333 additions and 54 deletions
--- a/index.html
+++ b/index.html
@ -1,13 +1,175 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="zh-CN">
    <head>
        <meta charset="UTF-8" />
        <link rel="icon" type="image/svg+xml" href="" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>北京中兆律师事务所 智能知识库</title>
+        <!-- 预加载视频文件，设置最高优先级 -->
+        <link rel="preload" href="OpenDoor.mp4" as="video" type="video/mp4" fetchpriority="high">
+        <style>
+            /* 加载动画全屏覆盖 */
+            #root-loading {
+                position: fixed;
+                z-index: 9999;
+                top: 0;
+                left: 0;
+                width: 100%;
+                height: 100%;
+                background: #A32B23; /* 使用律所的红色背景 */
+                display: flex;
+                justify-content: center;
+                align-items: center;
+                overflow: hidden;
+            }
+
+            /* 确保视频填满屏幕 */
+            #door-animation-video {
+                width: 100%;
+                height: 100%;
+                object-fit: cover; /* 使用cover确保填满整个屏幕 */
+            }
+            
+            /* 备用加载动画 */
+            .backup-loader {
+                width: 80px;
+                height: 80px;
+                border: 8px solid rgba(255, 255, 255, 0.3);
+                border-radius: 50%;
+                border-top-color: #fff;
+                animation: spin 1s linear infinite;
+                display: none;
+            }
+            
+            @keyframes spin {
+                to { transform: rotate(360deg); }
+            }
+            
+            /* React容器初始隐藏 */
+            #root {
+                display: none;
+            }
+        </style>
    </head>
    <body>
+        <!-- 加载动画容器 -->
+        <div id="root-loading">
+            <!-- 用视频替换GIF，视频可以设置不循环 -->
+            <video 
+                id="door-animation-video" 
+                autoplay 
+                muted 
+                playsinline
+                disablePictureInPicture
+                disableRemotePlayback
+                preload="auto"
+            >
+                <source src="OpenDoor.mp4" type="video/mp4">
+                <!-- 备用GIF，如果视频无法播放 -->
+                <img id="door-animation" src="OpenDoor.gif" alt="Loading..." style="width:100%; height:100%; object-fit:cover;" />
+            </video>
+            <div class="backup-loader" id="backup-loader"></div>
+        </div>
+        
+        <!-- React应用容器 -->
        <div id="root"></div>
+        
+        <script>
+            // 优化视频播放的主脚本
+            document.addEventListener('DOMContentLoaded', function() {
+                // 获取元素引用
+                var video = document.getElementById('door-animation-video');
+                var backupLoader = document.getElementById('backup-loader');
+                var isVideoPlayed = false;
+                var videoLoadStartTime = Date.now();
+                
+                // 视频加载时间监控
+                var loadTimeout = setTimeout(function() {
+                    // 如果5秒后视频仍未开始播放，显示备用加载器
+                    if (!isVideoPlayed && !video.currentTime) {
+                        console.warn('视频加载时间过长，准备备用方案');
+                    }
+                }, 5000);
+                
+                // 视频元数据加载完成后隐藏静态首帧
+                video.onloadedmetadata = function() {
+                    console.log('视频元数据已加载');
+                };
+                
+                // 视频可以播放时（已缓冲足够数据）
+                video.oncanplay = function() {
+                    console.log('视频可以开始播放');
+                    
+                    clearTimeout(loadTimeout);
+                };
+                
+                // 处理视频加载错误
+                video.onerror = function() {
+                    console.error('无法加载开门动画视频', video.error);
+                    clearTimeout(loadTimeout);
+                    
+                    var doorAnimation = document.getElementById('door-animation');
+                    if (doorAnimation) {
+                        doorAnimation.style.display = 'block';
+                        doorAnimation.onerror = function() {
+                            doorAnimation.style.display = 'none';
+                            backupLoader.style.display = 'block';
+                        };
+                    } else {
+                        backupLoader.style.display = 'block';
+                    }
+                    
+                    // 5秒后无论如何都显示应用
+                    setTimeout(function() {
+                        window.doorAnimationCompleted = true;
+                        if (window.reactAppReady) {
+                            showReactApp();
+                        }
+                    }, 5000);
+                };
+                
+                // 监听视频播放结束事件
+                video.onended = function() {
+                    if (!isVideoPlayed) {
+                        isVideoPlayed = true;
+                        console.log('视频播放完成');
+                        
+                        // 记录视频加载到播放完成的总时间
+                        var totalTime = Date.now() - videoLoadStartTime;
+                        console.log('视频总播放时间: ' + totalTime + 'ms');
+                        
+                        // 通知main.jsx视频已播放完成
+                        window.doorAnimationCompleted = true;
+                        
+                        // 如果React已经准备好，显示应用
+                        if (window.reactAppReady) {
+                            showReactApp();
+                        }
+                    }
+                };
+                
+                // 函数：显示React应用
+                window.showReactApp = function() {
+                    var rootElement = document.getElementById('root');
+                    var loadingElement = document.getElementById('root-loading');
+                    
+                    if (rootElement) rootElement.style.display = 'block';
+                    if (loadingElement) loadingElement.style.display = 'none';
+                };
+                
+                // 确保视频加载失败或其他意外情况下，应用最终会显示（安全措施）
+                setTimeout(function() {
+                    if (!window.doorAnimationCompleted) {
+                        console.warn('应用显示安全措施触发');
+                        window.doorAnimationCompleted = true;
+                        if (window.reactAppReady) {
+                            showReactApp();
+                        }
+                    }
+                }, 12000); // 12秒后无论如何都显示应用
+            });
+        </script>
+        
        <script type="module" src="/src/main.jsx"></script>
    </body>
 </html>
--- a/public/OpenDoor.gif
+++ b/public/OpenDoor.gif
--- a/public/OpenDoor.mp4
+++ b/public/OpenDoor.mp4
--- a/public/vite.svg
+++ b/public/vite.svg
@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" className="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
--- a/src/App.jsx
+++ b/src/App.jsx
@ -1,8 +1,8 @@
+import React, { useEffect } from 'react';
+import { useNavigate } from 'react-router-dom';
 import { useDispatch, useSelector } from 'react-redux';
 import AppRouter from './router/router';
 import { checkAuthThunk } from './store/auth/auth.thunk';
-import { useEffect } from 'react';
-import { useNavigate } from 'react-router-dom';
 import { login } from './store/auth/auth.slice';
 import { initWebSocket, closeWebSocket } from './services/websocket';
 import { setWebSocketConnected } from './store/notificationCenter/notificationCenter.slice';
@ -10,33 +10,31 @@ import { setWebSocketConnected } from './store/notificationCenter/notificationCe
 function App() {
    const navigate = useNavigate();
    const dispatch = useDispatch();
-
    const { user } = useSelector((state) => state.auth);
    const { isConnected } = useSelector((state) => state.notificationCenter);

    // 检查用户认证状态
    useEffect(() => {
        handleCheckAuth();
-    }, [dispatch]);
+    }, []);

    // 管理WebSocket连接
    useEffect(() => {
-        console.log(user, isConnected);
-        
-        // 如果用户已认证但WebSocket未连接，则初始化连接
-        if (user && !isConnected) {
-            // initWebSocket()
-                // .then(() => {
-                    // dispatch(setWebSocketConnected(true));
-                    // console.log('WebSocket connection initialized');
-                // })
-                // .catch((error) => {
-                //     console.error('Failed to initialize WebSocket connection:', error);
-                // });
+        if (user) {
+            if (!isConnected) {
+                // 初始化WebSocket连接
+                initWebSocket(dispatch);
+            }
+        } else {
+            if (isConnected) {
+                // 关闭WebSocket连接
+                closeWebSocket();
+                dispatch(setWebSocketConnected(false));
+            }
        }

-        // 组件卸载或用户登出时关闭WebSocket连接
        return () => {
+            // 组件卸载时关闭WebSocket连接
            if (isConnected) {
                closeWebSocket();
                dispatch(setWebSocketConnected(false));
@ -55,7 +53,7 @@ function App() {
        }
    };

-    return <AppRouter></AppRouter>;
+    return <AppRouter />;
 }

 export default App;
--- a/src/assets/react.svg
+++ b/src/assets/react.svg
@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" className="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
--- a/src/components/Banner.jsx
+++ b/src/components/Banner.jsx
@ -1,23 +1,29 @@
-import React from "react";
-import bannerImg from "../assets/wmremove-transformed.jpeg";
+import React from 'react';
+import bannerImg from '../assets/wmremove-transformed.jpeg';
+import { Link } from 'react-router-dom';

 export const Banner = () => {
-  return (
-    <div className="banner-container position-relative">
-      <div className="banner-image-wrapper">
-        <img 
-          src={bannerImg} 
-          alt="Beijing Zhong Zhao Law Firm" 
-          className="banner-image"
-        />
-      </div>
-      <div className="banner-overlay">
-        <div className="banner-content">
-          <h1 className="banner-title">Beijing Zhong Zhao Law Firm</h1>
-          <p className="banner-slogan">Dedicated Hardworking Integrity Keep One's Word</p>
-          <button className="btn btn-primary-custom chat-now-btn">Chat Now</button>
+    // 处理聊天按钮点击事件
+    const handleChatClick = (e) => {
+        e.preventDefault();
+        // 在当前窗口打开链接，而不是新窗口
+        window.location.href = 'https://www.zhaolaw.com/contact';
+    };
+
+    return (
+        <div className='banner-container position-relative'>
+            <div className='banner-image-wrapper'>
+                <img src={bannerImg} alt='Beijing Zhong Zhao Law Firm' className='banner-image' />
+            </div>
+            <div className='banner-overlay'>
+                <div className='banner-content'>
+                    <h1 className='banner-title'>北京中兆律师事务所</h1>
+                    <p className='banner-slogan'>Dedicated Hardworking Integrity Keep One's Word</p>
+                    <Link to='/chat' className='btn btn-primary-custom chat-now-btn'>
+                        开始聊天
+                    </Link>
+                </div>
+            </div>
        </div>
-      </div>
-    </div>
-  );
+    );
 };
--- a/src/main.jsx
+++ b/src/main.jsx
@ -11,8 +11,15 @@ import store, { persistor } from './store/store.js';
 import { PersistGate } from 'redux-persist/integration/react';
 import Loading from './components/Loading.jsx';

-createRoot(document.getElementById('root')).render(
-    // <StrictMode>
+// 获取根元素
+const rootElement = document.getElementById('root');
+
+// 定义渲染React应用的函数
+const renderApp = () => {
+    console.log('React应用开始渲染');
+    const root = createRoot(rootElement);
+    root.render(
+        // <StrictMode>
        <PersistGate loading={<Loading />} persistor={persistor}>
            <BrowserRouter>
                <Provider store={store}>
@ -20,5 +27,33 @@ createRoot(document.getElementById('root')).render(
                </Provider>
            </BrowserRouter>
        </PersistGate>
-    // </StrictMode>
-);
+        // </StrictMode>
+    );
+    console.log('React应用渲染完成');
+};
+
+// 协调视频播放和应用加载
+const coordinateAppStart = () => {
+    // 如果视频已播放完毕，直接显示应用
+    if (window.doorAnimationCompleted) {
+        console.log('视频已播放完毕，显示应用');
+        if (window.showReactApp) {
+            window.showReactApp();
+        } else {
+            // 备用方案：直接修改样式
+            if (rootElement) rootElement.style.display = 'block';
+            const splash = document.getElementById('root-loading');
+            if (splash) splash.style.display = 'none';
+        }
+    } else {
+        console.log('React应用已准备好，等待视频播放完成');
+        // 通知视频播放脚本，React已准备好
+        window.reactAppReady = true;
+    }
+};
+
+// 预先加载和渲染React应用，但不显示
+renderApp();
+
+// 通知协调脚本React应用已准备好
+coordinateAppStart();
--- a/src/pages/Chat/Chat.jsx
+++ b/src/pages/Chat/Chat.jsx
@ -21,6 +21,9 @@ export default function Chat() {
    const operationStatus = useSelector((state) => state.chat.createSession?.status);
    const operationError = useSelector((state) => state.chat.createSession?.error);

+    // 判断是否在知识库选择页面
+    const isNewChatView = !chatId;
+
    // 获取聊天记录列表
    useEffect(() => {
        dispatch(fetchChats({ page: 1, page_size: 20 }));
@ -163,6 +166,7 @@ export default function Chat() {
                        onDeleteChat={handleDeleteChat}
                        isLoading={status === 'loading'}
                        hasError={status === 'failed'}
+                        isNewChatView={isNewChatView}
                    />
                </div>

@ -171,7 +175,7 @@ export default function Chat() {
                    className='chat-main col-md-9 col-lg-10 p-0'
                    style={{ height: 'calc(100vh - 84px)', overflowY: 'auto' }}
                >
-                    {!chatId ? <NewChat /> : <ChatWindow chatId={chatId} knowledgeBaseId={knowledgeBaseId} />}
+                    {isNewChatView ? <NewChat /> : <ChatWindow chatId={chatId} knowledgeBaseId={knowledgeBaseId} />}
                </div>
            </div>
        </div>
--- a/src/pages/Chat/ChatSidebar.jsx
+++ b/src/pages/Chat/ChatSidebar.jsx
@ -2,7 +2,22 @@ import React, { useState } from 'react';
 import { Link, useNavigate, useParams } from 'react-router-dom';
 import SvgIcon from '../../components/SvgIcon';

-export default function ChatSidebar({ chatHistory = [], onDeleteChat, isLoading = false, hasError = false }) {
+/**
+ * 聊天侧边栏组件
+ * @param {Object} props
+ * @param {Array} props.chatHistory - 聊天历史记录
+ * @param {Function} props.onDeleteChat - 删除聊天的回调
+ * @param {boolean} props.isLoading - 是否正在加载
+ * @param {boolean} props.hasError - 是否有错误
+ * @param {boolean} props.isNewChatView - 是否在选择知识库页面
+ */
+export default function ChatSidebar({ 
+    chatHistory = [], 
+    onDeleteChat, 
+    isLoading = false, 
+    hasError = false,
+    isNewChatView = false
+}) {
    const navigate = useNavigate();
    const { chatId, knowledgeBaseId } = useParams();
    const [activeDropdown, setActiveDropdown] = useState(null);
@ -61,10 +76,12 @@ export default function ChatSidebar({ chatHistory = [], onDeleteChat, isLoading

            <div className='p-3'>
                <button
-                    className='btn btn-primary-custom w-100 d-flex align-items-center justify-content-center gap-2'
+                    className='btn btn-outline-primary-custom w-100 d-flex align-items-center justify-content-center gap-2'
                    onClick={handleNewChat}
+                    disabled={isNewChatView}
+                    title={isNewChatView ? '请先从当前页面选择知识库' : '开始新的聊天'}
                >
-                    <SvgIcon className='plus' color='#ffffff' />
+                    <SvgIcon className='plus' width='24' height='24' />
                    <span>新建聊天</span>
                </button>
            </div>
--- a/src/pages/Chat/NewChat.jsx
+++ b/src/pages/Chat/NewChat.jsx
@ -191,7 +191,7 @@ export default function NewChat() {
            <div className='d-flex justify-content-between align-items-center mb-4'>
                <h4 className='m-0'>选择知识库开始聊天</h4>
                <button
-                    className='btn btn-outline-primary-custom'
+                    className='btn btn-primary-custom'
                    onClick={handleStartChat}
                    disabled={selectedDatasetIds.length === 0 || isNavigating}
                >
@ -211,7 +211,7 @@ export default function NewChat() {
            </div>

            {selectedDatasetIds.length > 0 && (
-                <div className='alert alert-dark mb-4'>已选择 {selectedDatasetIds.length} 个知识库</div>
+                <div className='alert alert-info mb-4'>已选择 {selectedDatasetIds.length} 个知识库</div>
            )}

            <div className='row row-cols-1 row-cols-md-2 row-cols-lg-3 g-4 justify-content-center'>
@ -221,11 +221,16 @@ export default function NewChat() {
                        return (
                            <div key={dataset.id} className='col'>
                                <div
-                                    className={`card h-100 shadow-sm ${!isNavigating ? 'cursor-pointer' : ''} ${
-                                        isSelected ? 'border-primary border-1' : 'border-0'
+                                    className={`card h-100 ${!isNavigating ? 'cursor-pointer' : ''} ${
+                                        isSelected
+                                            ? 'border-primary border-2 shadow selected-card'
+                                            : 'border-0 shadow-sm'
                                    }`}
                                    onClick={() => handleToggleKnowledgeBase(dataset)}
-                                    style={{ opacity: isNavigating && !isSelected ? 0.6 : 1 }}
+                                    style={{
+                                        opacity: isNavigating && !isSelected ? 0.6 : 1,
+                                        transition: 'all 0.2s ease-in-out',
+                                    }}
                                >
                                    <div className='card-body'>
                                        <h5 className='card-title d-flex justify-content-between align-items-center'>
--- a/src/styles/style.scss
+++ b/src/styles/style.scss
@ -433,7 +433,7 @@
 .banner-container {
    position: relative;
    width: 100%;
-    height: 500px;
+    height: 360px;
    overflow: hidden;
 }

@ -536,3 +536,57 @@
        padding-right: 0.75rem;
    }
 }
+
+// Selected card highlight effect for knowledge base selection
+.selected-card {
+  transform: translateY(-3px);
+  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15) !important;
+  
+  &:hover {
+    transform: translateY(-3px);
+  }
+  
+  .card-title {
+    color: $primary;
+    font-weight: 600;
+  }
+}
+
+// Hover effect for selectable cards
+.cursor-pointer.card:not(.selected-card) {
+  transition: all 0.2s ease-in-out;
+  
+  &:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08) !important;
+    border-color: rgba($primary, 0.3) !important;
+  }
+}
+
+// Splash screen animation styles
+.splash-screen {
+  animation: fadeIn 0.5s ease-in-out;
+  
+  &.fade-out {
+    animation: fadeOut 0.8s ease-in-out forwards;
+  }
+  
+  @keyframes fadeIn {
+    from {
+      opacity: 0;
+    }
+    to {
+      opacity: 1;
+    }
+  }
+  
+  @keyframes fadeOut {
+    from {
+      opacity: 1;
+    }
+    to {
+      opacity: 0;
+      visibility: hidden;
+    }
+  }
+}
				`@ -1 +0,0 @@`
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