diff --git a/src/main/java/uk/ac/cf/spring/demo/sports/Userdetail/userDao.java b/src/main/java/uk/ac/cf/spring/demo/sports/Userdetail/userDao.java
index fa67c47b92eab70cca483012261b532e21b0e9ce..bff08095c8b53a77ff19d413a7d070ed75a63694 100644
--- a/src/main/java/uk/ac/cf/spring/demo/sports/Userdetail/userDao.java
+++ b/src/main/java/uk/ac/cf/spring/demo/sports/Userdetail/userDao.java
@@ -15,7 +15,7 @@ public class userDao {
         this.jdbcTemplate = jdbcTemplate;
     }
 
-    // get all users
+    // 获取所有用户
     public List<User> getAllUsers() {
         // 查询所有用户的 SQL 语句
         String sql = "SELECT id, email, username FROM information";
@@ -50,7 +50,7 @@ public class userDao {
         return jdbcTemplate.update(sql, user.getEmail(), user.getUsername());
     }
 
-    // update user message
+    // 更新用户信息
     public int updateUser(User user) {
         // 更新用户的 SQL 语句
         String sql = "UPDATE information SET email = ?, username = ? WHERE id = ?";
@@ -59,7 +59,7 @@ public class userDao {
         return jdbcTemplate.update(sql, user.getEmail(), user.getUsername(), user.getId());
     }
 
-    // delete user
+    // 删除用户
     public int deleteUser(Long id) {
         // 删除用户的 SQL 语句
         String sql = "DELETE FROM information WHERE id = ?";
diff --git a/src/main/java/uk/ac/cf/spring/demo/sports/security/SecurityConfig.java b/src/main/java/uk/ac/cf/spring/demo/sports/security/SecurityConfig.java
index 89d165eaa930c03cf355014ebe1730253c491723..a9f501da9da98710b5f793224c25aab812a0194b 100644
--- a/src/main/java/uk/ac/cf/spring/demo/sports/security/SecurityConfig.java
+++ b/src/main/java/uk/ac/cf/spring/demo/sports/security/SecurityConfig.java
@@ -11,47 +11,84 @@ import org.springframework.security.provisioning.InMemoryUserDetailsManager;
 import org.springframework.security.web.SecurityFilterChain;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 
+import static org.springframework.security.config.Customizer.withDefaults;
+
 @Configuration
 @EnableWebSecurity
 public class SecurityConfig {
 
     public static final String[] ENDPOINTS_WHITELIST = {
-            "/css/**",          // Style Files
-            "/js/**",           // JS Files
+            "/pics/**",
+            "/css/**",          // .CSS Style Files
+            "/js/**",           // .JS Files
             "/images/**",       // images
             "/",                // root path
             "/match",           // match data path
             "/match/**",
             "/api/**",          // API
             "/html/**",         // static HTML
-            "/html/register.html",        // register
-            "/html/login.html" , // login
-            "/rankings",
-            "/UserCenter",//ranking data path
+            "/html/register.html",  // registration path
+            "/html/login.html",  // login
+            "/html/table-tennis rules.html",
+            "/rankings",          //ranking data path
             "/rankings/**"
     };
 
+//    @Bean
+//    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+//        http
+//                .authorizeHttpRequests(request -> request
+//                        .requestMatchers(ENDPOINTS_WHITELIST).permitAll() // Allow whitelisted pages without authentication
+//                        .anyRequest().authenticated() // Other pages require authentication
+//                )
+//                .csrf().disable()
+//
+//                .formLogin(form -> form
+//                        .loginPage("/html/login.html").permitAll() // Using Custom Pages
+//                        .defaultSuccessUrl("/html/matchSchedule.html", true) // After successful login, you will be redirected
+//                        .failureUrl("/html/login.html?error=true") // After login failure, you will be redirected
+//                )
+//                .logout().logoutUrl("/logout").logoutSuccessUrl("/"); // Logout Configuration
+//
+//
+//        return http.build();
+//    }
+
     @Bean
     public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
         http
+                // Configure access rights for paths
                 .authorizeHttpRequests(request -> request
-                        .requestMatchers(ENDPOINTS_WHITELIST).permitAll() // 允许白名单页面不需要认证
-                        .anyRequest().authenticated() // 其他页面需要认证
+                        .requestMatchers(ENDPOINTS_WHITELIST).permitAll() // Allow whitelisted pages without authentication
+                        .requestMatchers("/admin/**").hasRole("ADMIN") // Only users with the ADMIN role are allowed to access
+                        .requestMatchers("/html/matchDetailChangeScore.html").hasRole("ADMIN")  // Only users with the ADMIN role are allowed to access
+                        .anyRequest().authenticated() // Other paths require authentication
                 )
+
+                // Disable CSRF (can be enabled on demand)
                 .csrf().disable()
-//                .formLogin(form -> form
-//                        .loginPage("/login").permitAll() // 定义自定义登录页面
-//                )
+
+                // Forms Login Configuration
                 .formLogin(form -> form
-                        .loginPage("/html/login.html").permitAll() // 使用自定义页面
-                        .defaultSuccessUrl("/html/matchSchedule.html", true) // 登录成功后跳转
-                        .failureUrl("/html/login.html?error=true") // 登录失败后跳转
+                        .loginPage("/html/login.html").permitAll() // Using a customized login page
+                        .defaultSuccessUrl("/html/matchSchedule.html", true) // After successful login, you will be redirected to this page
+                        .failureUrl("/html/login.html?error=true") // You will be redirected to this page after a failed login
                 )
-                .logout().logoutUrl("/logout").logoutSuccessUrl("/"); // 登出配置
+
+                // Basic authentication configuration (for API access)
+                .httpBasic(withDefaults()) // Basic Auth is supported for API calls
+
+                // Logout Configuration
+                .logout(logout -> logout
+                        .logoutUrl("/logout") // Set the logout path
+                        .logoutSuccessUrl("/") // The path to which you are redirected after the logout is successful
+                );
+
         return http.build();
     }
 
 
+
     @Bean
     public UserDetailsService userDetailsService() {
         UserDetails user =
@@ -65,7 +102,7 @@ public class SecurityConfig {
 
     @Bean
     public BCryptPasswordEncoder passwordEncoder() {
-        return new BCryptPasswordEncoder();
+        return new BCryptPasswordEncoder();     // Use BCrypt for password encryption
     }
 }
 
diff --git a/src/main/resources/schema.sql b/src/main/resources/schema.sql
index 5b0ebe8fc11112f5182b1a8e7c81f6628c3c0efb..79e19efcafd5f442a7381d58c0f239973ea5b207 100644
--- a/src/main/resources/schema.sql
+++ b/src/main/resources/schema.sql
@@ -18,7 +18,7 @@ create table if not exists match_item (
     confirm_b BOOLEAN DEFAULT FALSE,
     winner_id BIGINT DEFAULT NULL
     );
-# drop table if exists information;
+drop table if exists information;
 CREATE TABLE information (
                              id INT AUTO_INCREMENT PRIMARY KEY,
                              username VARCHAR(50) UNIQUE NOT NULL,
@@ -26,6 +26,7 @@ CREATE TABLE information (
                              password VARCHAR(255) NOT NULL,
                              role VARCHAR(20) DEFAULT 'USER' NOT NULL
 );
+drop table if exists ranking;
 CREATE TABLE IF NOT EXISTS ranking (
                                         id INT AUTO_INCREMENT PRIMARY KEY,
                                         user_id INT NOT NULL,
@@ -39,7 +40,7 @@ CREATE TABLE IF NOT EXISTS ranking (
 );
 CREATE TABLE images (
                         id INT AUTO_INCREMENT PRIMARY KEY,
-                        filename VARCHAR(255) NOT NULL,  -- 图片文件名或路径
-                        uploader VARCHAR(100) NOT NULL,  -- 上传者名称
-                        upload_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP -- 上传时间
+                        filename VARCHAR(255) NOT NULL,  -- Image file name or path
+                        uploader VARCHAR(100) NOT NULL,  -- Uploader Name
+                        upload_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP -- Upload time
 );
diff --git a/src/main/resources/static/css/dartsrules.css b/src/main/resources/static/css/dartsrules.css
new file mode 100644
index 0000000000000000000000000000000000000000..b813eebb6bba912e9cd5c116ff4a2d88f4823c73
--- /dev/null
+++ b/src/main/resources/static/css/dartsrules.css
@@ -0,0 +1,26 @@
+
+main {
+    max-width: 800px;
+    margin: 30px auto;
+    background: white;
+    padding: 20px;
+    border-radius: 10px;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+    font-family: Arial, sans-serif;
+    color: #333;
+}
+h1 {
+    text-align: center;
+    color: #444;
+    margin-bottom: 20px;
+}
+ol {
+    padding-left: 20px;
+    line-height: 1.8;
+}
+ol li {
+    margin-bottom: 15px;
+}
+strong {
+    color: #222;
+}
diff --git a/src/main/resources/static/css/footer.css b/src/main/resources/static/css/footer.css
index 1bdc88a6ddc7a931fa7dbbf54c63127068f60492..c4616f08f9410f2f4966569a942f600258905f4e 100644
--- a/src/main/resources/static/css/footer.css
+++ b/src/main/resources/static/css/footer.css
@@ -5,6 +5,10 @@
 }
 
 .footer {
+    /*position: fixed;*/
+    /*bottom: 0;*/
+    /*left: 0;*/
+    /*width: 100%;*/
     background-color: #333;
     color: white;
     padding: 40px 30px;
diff --git a/src/main/resources/static/css/login.css b/src/main/resources/static/css/login.css
new file mode 100644
index 0000000000000000000000000000000000000000..25efe488019c72828d914bafec2ccba288c215ac
--- /dev/null
+++ b/src/main/resources/static/css/login.css
@@ -0,0 +1,154 @@
+body {
+    background-image: url('../pics/photo.jpg');
+    background-size: cover;
+    background-position: center;
+    height: 100vh;
+    margin: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    font-family: Gill Sans MT, sans-serif;
+}
+
+form {
+    background-color: rgba(255, 255, 255, 0.8);
+    padding: 20px;
+    border-radius: 10px;
+    backdrop-filter: blur(5px);
+}
+
+h1 {
+    font-weight: bold;
+    text-align: center;
+    color: #333;
+}
+
+#message {
+    text-align: center;
+    color: red;
+}
+
+body {
+    font-size: 16px;
+}
+
+/* 默认样式 */
+#loginForm {
+    max-width: 800px;
+    margin: 0 auto;
+    position: relative;
+    top: 20px;
+    padding: 20px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+#loginForm label {
+    display: block;
+    margin-bottom: 5px;
+}
+
+#loginForm input[type="email"] {
+    width: 95%;
+    margin-bottom: 10px;
+    padding: 10px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+#loginForm input[type="password"] {
+    width: 95%;
+    margin-bottom: 60px;
+    padding: 10px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+#loginForm button {
+    width: 100%;
+    margin-bottom: 20px;
+    padding: 10px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+    background-color: #007BFF;
+    color: white;
+    cursor: pointer;
+}
+
+#loginForm label {
+    font-weight: bold; /* 设置标签字体加粗 */
+    /*color: #333; !* 设置标签字体颜色 *!*/
+    font-family: Gill Sans MT, sans-serif; /* 设置标签字体族 */
+}
+
+#loginForm button {
+    font-weight: bold; /* 设置标签字体加粗 */
+    /*color: #333; !* 设置标签字体颜色 *!*/
+    font-family: Gill Sans MT, sans-serif; /* 设置标签字体族 */
+}
+
+@media screen and (max-width: 600px) {
+    body {
+        font-size: 14px;
+    }
+    #loginForm {
+        padding: 10px;
+    }
+
+    #loginForm input[type="email"],
+    #loginForm input[type="password"],
+    #loginForm button {
+        font-size: 14px;
+    }
+}
+
+@media screen and (min-width: 601px) and (max-width: 900px) {
+    body {
+        font-size: 18px;
+    }
+    #loginForm {
+        min-width: 300px;
+    }
+
+    #loginForm input[type="email"],
+    #loginForm input[type="password"],
+    #loginForm button {
+        font-size: 18px;
+    }
+}
+
+@media screen and (min-width: 901px) and (max-width: 1200px) {
+    body {
+        font-size: 22px;
+    }
+    #loginForm {
+        min-width: 450px;
+    }
+
+    #loginForm input[type="email"],
+    #loginForm input[type="password"],
+    #loginForm button {
+        font-size: 22px;
+    }
+}
+
+@media screen and (min-width: 1201px) {
+    body {
+        font-size: 30px;
+    }
+    #loginForm {
+        min-width: 600px;
+    }
+
+    #loginForm input[type="email"],
+    #loginForm input[type="password"],
+    #loginForm button {
+        font-size: 20px;
+    }
+}
+
+
+
diff --git a/src/main/resources/static/css/matchDetail.css b/src/main/resources/static/css/matchDetail.css
index d46cdf49bc4bab984e61f67a36a39187d8ba85d4..dbfba9b8921ac79cac810489f7c1b289bdbb7321 100644
--- a/src/main/resources/static/css/matchDetail.css
+++ b/src/main/resources/static/css/matchDetail.css
@@ -6,7 +6,8 @@
 }
 
 body {
-    font-family: Arial, sans-serif;
+    /*font-family: Arial, sans-serif;*/
+    font-family: Gill Sans MT, sans-serif;
     background-color: #f4f4f4;
     color: #333;
 }
@@ -16,7 +17,6 @@ body {
         p {
             font-size: 36px;
             color: white;
-
             font-weight: bold;
             text-align: center;
         }
@@ -75,7 +75,13 @@ h2 {
     background-color: #f9f9f9;
     border-radius: 6px;
 }
-
+button {
+    padding: 10px 20px;
+    margin-left: 10px;
+    border: none;
+    border-radius: 5px;
+    cursor: pointer;
+}
 strong {
     color: #2d2d2d;
 }
diff --git a/src/main/resources/static/css/matchDetailChangeScore.css b/src/main/resources/static/css/matchDetailChangeScore.css
new file mode 100644
index 0000000000000000000000000000000000000000..8fafb117de2001eed4b70313002dc35d3d1be398
--- /dev/null
+++ b/src/main/resources/static/css/matchDetailChangeScore.css
@@ -0,0 +1,111 @@
+
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+body {
+    font-family: Arial, sans-serif;
+    background-color: #f4f4f4;
+    color: #333;
+}
+.title-h1{
+    h1 {
+        background-color: #4a4a4a;
+        p {
+            font-size: 36px;
+            color: white;
+
+            font-weight: bold;
+            text-align: center;
+        }
+
+    }
+}
+.container {
+    width: 80%;
+    margin: 20px auto;
+}
+
+header {
+    text-align: center;
+    margin-bottom: 30px;
+}
+#matchDetails {
+    margin-left: 45px;
+    align-items: center;
+    background-color: #fff;
+    border-radius: 12px;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+    width: 100%;
+    max-width: 900px;
+    padding: 30px;
+    box-sizing: border-box;
+    margin-top: 30px;
+}
+
+h2 {
+    text-align: center;
+    font-size: 2.5em;
+    color: #333;
+    margin-bottom: 20px;
+}
+
+#matchScore {
+    font-size: 2.4em;
+    line-height: 1.6;
+    color: #444;
+    margin: 20px 0;
+}
+
+#matchScore p {
+    text-align: center;
+}
+
+#matchInfo {
+    font-size: 1.2em;
+    line-height: 1.6;
+    color: #444;
+}
+
+#matchInfo p {
+    margin: 15px 0;
+    padding: 10px;
+    background-color: #f9f9f9;
+    border-radius: 6px;
+}
+#sport,
+#playerAId,
+#playerBId,
+#status,
+#confirmByA,
+#confirmByB {
+    display: none;
+}
+button {
+    margin: 10px;
+    padding: 10px 20px;
+    /*margin-left: 10px;*/
+    border: none;
+    border-radius: 5px;
+    cursor: pointer;
+}
+#updateMatchForm {
+display: block;
+}
+strong {
+    color: #2d2d2d;
+}
+/*adjust for phone*/
+@media screen and (max-width: 768px) {
+    .container {
+        width: 95%;
+    }
+
+    .match-item {
+        flex-direction: column;
+        align-items: flex-start;
+    }
+}
+
diff --git a/src/main/resources/static/css/matchSchedule.css b/src/main/resources/static/css/matchSchedule.css
index e408266f605ac005e4092e405b59bf9096448c3c..1b20c5882ad8e934598252d9ee73b3521d1ce7e7 100644
--- a/src/main/resources/static/css/matchSchedule.css
+++ b/src/main/resources/static/css/matchSchedule.css
@@ -5,7 +5,8 @@
 }
 
 body {
-    font-family: Arial, sans-serif;
+    /*font-family: Arial, sans-serif;*/
+    font-family: Gill Sans MT, sans-serif;
     background-color: #f4f4f4;
     color: #333;
 }
@@ -44,18 +45,21 @@ header {
     margin-left: 10px;
     margin-right: 10px;
     font-size: 16px;
+    font-family: Gill Sans MT, sans-serif;
 }
 
 .filter-panel select {
     margin-top: 4px;
     padding: 8px;
     font-size: 14px;
+    font-family: Gill Sans MT, sans-serif;
     border: 1px solid #ddd;
     border-radius: 5px;
 }
 /*button*/
 button {
     background-color: #4CAF50;
+    font-family: Gill Sans MT, sans-serif;
     color: white;
     padding: 10px 20px;
     border: none;
@@ -68,6 +72,7 @@ button {
     width: 100%;
     padding: 10px 15px;
     font-size: 16px;
+    font-family: Gill Sans MT, sans-serif;
     margin: 20px 0;
     border-radius: 6px;
     border: 1px solid #ddd;
diff --git a/src/main/resources/static/css/navBar.css b/src/main/resources/static/css/navBar.css
index 4e24d59973be8e41c220ce634a54f54a49c3c73e..d82debcbde6a3b8dc4b8aa938a5e4a0cd1d9aeed 100644
--- a/src/main/resources/static/css/navBar.css
+++ b/src/main/resources/static/css/navBar.css
@@ -10,10 +10,15 @@ body {
 }
 /*navbar*/
 .navbar {
+    /*position: fixed;*/
+    /*top: 0;*/
+    /*left: 0;*/
+    /*width: 100%;*/
     display: flex;
     justify-content: space-between;
     align-items: center;
-    padding: 10px 21px;
+    /*padding: 10px 21px;*/
+    padding: 10px 3%;
     background-color: #333;
     color: white;
     font-weight: bold;
@@ -51,15 +56,39 @@ body {
     display: flex;
     flex-direction: column;
     button {
-        padding: 10px 20px;
-        margin-left: 10px;
+        /*padding: 10px 20px;*/
+        /*margin-left: 10px;*/
+        padding: 10px 3%;
+        margin: 5px 0;
         border: none;
         border-radius: 5px;
         cursor: pointer;
     }
 }
 
+@media screen and (max-width: 480px) {
+    .navbar .nav-links li:not(:first-child):not(:last-child) {
+        margin: 0 10px;
+    }
+}
+
+@media screen and (min-width: 481px) and (max-width: 960px) {
+    .navbar .nav-links li:not(:first-child):not(:last-child) {
+        margin: 0 30px;
+    }
+}
 
+@media screen and (min-width: 961px) and (max-width: 1280px) {
+    .navbar .nav-links li:not(:first-child):not(:last-child) {
+        margin: 0 50px;
+    }
+}
+
+@media screen and (min-width: 1281px) {
+    .navbar .nav-links li:not(:first-child):not(:last-child) {
+        margin: 0 70px;
+    }
+}
 
 .navbar .auth-buttons .login-btn {
     background-color: #007BFF;
diff --git a/src/main/resources/static/css/register.css b/src/main/resources/static/css/register.css
new file mode 100644
index 0000000000000000000000000000000000000000..d75816fc41aef0d25b524269a98e8daea7c7c7d0
--- /dev/null
+++ b/src/main/resources/static/css/register.css
@@ -0,0 +1,163 @@
+body {
+    background-image: url('../pics/photo.jpg');
+    background-size: cover;
+    background-position: center;
+    height: 100vh;
+    margin: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+}
+
+form {
+    background-color: rgba(255, 255, 255, 0.8);
+    padding: 20px;
+    border-radius: 10px;
+    backdrop-filter: blur(5px);
+}
+
+h1 {
+    text-align: center;
+    color: #333;
+}
+
+#message {
+    text-align: center;
+    color: red;
+}
+
+body {
+    font-size: 16px;
+    font-family: Gill Sans MT, sans-serif;
+}
+
+/* 默认样式 */
+#registerForm {
+    max-width: 800px;
+    margin: 0 auto;
+    padding: 20px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+#registerForm label {
+    display: block;
+    margin-bottom: 5px;
+}
+
+#registerForm input[type="username"] {
+    width: 100%;
+    margin-bottom: 10px;
+    padding: 10px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+#registerForm input[type="email"] {
+    width: 100%;
+    margin-bottom: 10px;
+    padding: 10px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+#registerForm input[type="password"] {
+    width: 100%;
+    margin-bottom: 60px;
+    padding: 10px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+#registerForm button {
+    width: 100%;
+    margin-bottom: 20px;
+    padding: 10px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+    background-color: #007BFF;
+    color: white;
+    cursor: pointer;
+}
+
+#registerForm label {
+    font-weight: bold; /* 设置标签字体加粗 */
+    /*color: #333; !* 设置标签字体颜色 *!*/
+    font-family: Gill Sans MT, sans-serif; /* 设置标签字体族 */
+}
+
+#registerForm button {
+    font-weight: bold; /* 设置标签字体加粗 */
+    /*color: #333; !* 设置标签字体颜色 *!*/
+    font-family: Gill Sans MT, sans-serif; /* 设置标签字体族 */
+}
+
+@media screen and (max-width: 600px) {
+    body {
+        font-size: 14px;
+    }
+    #registerForm {
+        padding: 10px;
+    }
+
+    #registerForm input[type="email"],
+    #registerForm input[type="password"],
+    #registerForm button {
+        font-size: 14px;
+    }
+}
+
+@media screen and (min-width: 601px) and (max-width: 900px) {
+    body {
+        font-size: 18px;
+    }
+    #registerForm {
+        min-width: 300px;
+    }
+
+    #registerForm input[type="username"],
+    #registerForm input[type="email"],
+    #registerForm input[type="password"],
+    #registerForm button {
+        font-size: 18px;
+    }
+}
+
+@media screen and (min-width: 901px) and (max-width: 1200px) {
+    body {
+        font-size: 22px;
+    }
+    #registerForm {
+        min-width: 450px;
+    }
+
+    #registerForm input[type="username"],
+    #registerForm input[type="email"],
+    #registerForm input[type="password"],
+    #registerForm button {
+        font-size: 22px;
+    }
+}
+
+@media screen and (min-width: 1201px) {
+    body {
+        font-size: 25px;
+    }
+    #registerForm {
+        min-width: 600px;
+    }
+
+    #registerForm input[type="username"],
+    #registerForm input[type="email"],
+    #registerForm input[type="password"],
+    #registerForm button {
+        font-size: 20px;
+    }
+}
+
+
+
diff --git a/src/main/resources/static/css/search.css b/src/main/resources/static/css/search.css
new file mode 100644
index 0000000000000000000000000000000000000000..8f8c3ae342a902d4bc2ec7dd0f3054f577f2d776
--- /dev/null
+++ b/src/main/resources/static/css/search.css
@@ -0,0 +1,54 @@
+/* 搜索容器样式 */
+.search-container {
+    max-width: 600px;
+    margin: 30px auto;
+    text-align: center;
+    font-family: Arial, sans-serif;
+}
+
+#search-bar {
+    width: 100%;
+    padding: 15px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+    margin-bottom: 20px;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+#search-results {
+    margin-top: 20px;
+    text-align: left;
+}
+
+.search-result-item {
+    padding: 15px;
+    margin-bottom: 10px;
+    border: 1px solid #e0e0e0;
+    border-radius: 8px;
+    background-color: #fff;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+    transition: transform 0.2s, box-shadow 0.2s;
+}
+
+.search-result-item:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
+}
+
+.search-result-item h3 {
+    font-size: 18px;
+    margin: 0;
+    color: #0073e6;
+}
+
+.search-result-item p {
+    font-size: 14px;
+    color: #555;
+    margin: 5px 0 0;
+}
+
+.search-result-item a {
+    text-decoration: none;
+    color: inherit;
+}
diff --git a/src/main/resources/static/html/UserCenter.html b/src/main/resources/static/html/UserCenter.html
index 5a8e9f513d26ef1d8ef470608611f04627ab8b69..b920bc68c24302e6cc0cffc056afd9cedd3d9bb9 100644
--- a/src/main/resources/static/html/UserCenter.html
+++ b/src/main/resources/static/html/UserCenter.html
@@ -35,7 +35,6 @@
     </tbody>
 </table>
 <div id="footer-container"></div>
-<script src="/js/UserCenter.js"></script>
 <script src="/js/navBar.js"></script>
 <script src="/js/footer.js"></script>
 <script>
diff --git a/src/main/resources/static/html/dartsrules.html b/src/main/resources/static/html/dartsrules.html
new file mode 100644
index 0000000000000000000000000000000000000000..b0ce34c1eb3f4081ab7ce8bc610bb88c96870daa
--- /dev/null
+++ b/src/main/resources/static/html/dartsrules.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Darts Rules</title>
+  <link rel="stylesheet" href="/css/navBar.css">
+  <link rel="stylesheet" href="/css/footer.css">
+  <link rel="stylesheet" href="/css/dartsrules.css">
+</head>
+<body>
+<!-- 导航栏 -->
+<div id="navbar-container"></div>
+
+<!-- 主内容 -->
+<main>
+  <h1>Dart Rules</h1>
+  <ol>
+    <li><strong>Objective:</strong> The aim is to reduce your score from 301 to exactly zero.</li>
+    <li><strong>Throwing:</strong> Each player throws three darts per turn. Players determine who goes first by throwing a single dart – closest to bull wins.</li>
+    <li><strong>Scoring:</strong> Points are scored by hitting various sections of the dartboard. The outer ring doubles the score of that section, and the inner ring triples it. Hitting the bullseye scores 50 points, and the outer bull scores 25.</li>
+    <li><strong>Finishing:</strong> To win, you must reach exactly zero by ending with a double (a dart that lands in the outer ring of a number) or a bullseye. If you score more than needed or fail to end on a double, your score for that turn is voided, and you try again on your next turn.</li>
+    <li><strong>Turns:</strong> Players alternate turns, throwing three darts each time until one player reaches exactly zero.</li>
+  </ol>
+</main>
+
+<!-- 页脚 -->
+<div id="footer-container"></div>
+
+<!-- 脚本 -->
+<script src="/js/navBar.js"></script>
+<script src="/js/footer.js"></script>
+<script>
+  loadNavbar('navbar-container');
+  loadFooter('footer-container');
+</script>
+</body>
+</html>
+
diff --git a/src/main/resources/static/html/login.html b/src/main/resources/static/html/login.html
index 0ef4598bd2efc51196e0aa5c1ffb151110e268be..fe97d230b8bbb56ee9ca1582e565620456389aa8 100644
--- a/src/main/resources/static/html/login.html
+++ b/src/main/resources/static/html/login.html
@@ -4,14 +4,16 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>User Login</title>
-<!--  <link rel="stylesheet" href="/css/index.css">-->
-  <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
+  <link rel="stylesheet" href="/css/index.css">
+  <link rel="stylesheet" href="/css/login.css">
+<!--  <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>-->
   <script src="/js/bcrypt.min.js"></script>
-
+  <script src="/js/jquery-3.6.0.min.js"></script>
 </head>
 <body>
-<h1>User Login</h1>
+
 <form id="loginForm">
+  <h1>User Login</h1>
 
   <label for="email">E-mail:</label>
   <input type="email" id="email" name="email" required><br>
diff --git a/src/main/resources/static/html/matchDetail.html b/src/main/resources/static/html/matchDetail.html
index 5b992d0ed09f8b69d18433b9de41c0159d482c6b..68d2969f9e14108c0d760ac1375ffc4f86fa006b 100644
--- a/src/main/resources/static/html/matchDetail.html
+++ b/src/main/resources/static/html/matchDetail.html
@@ -19,7 +19,12 @@
             <h2>Match Details</h2>
             <div id="matchScore"></div>
             <div id="matchInfo"></div>
+                <button id="updateBtn" type="submit">Update Score</button>
+            <a href="http://localhost:8080/html/matchSchedule.html">
+                <button class="cancel-btn">Cancel</button>
+            </a>
         </div>
+
     </div>
 
     <div id="footer-container"></div>
diff --git a/src/main/resources/static/html/matchDetailChangeScore.html b/src/main/resources/static/html/matchDetailChangeScore.html
new file mode 100644
index 0000000000000000000000000000000000000000..ada5b7a395967a9dbb5ff985e8684bfcf3fd7c7e
--- /dev/null
+++ b/src/main/resources/static/html/matchDetailChangeScore.html
@@ -0,0 +1,58 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Match Detail</title>
+    <link rel="stylesheet" href="/css/matchDetailChangeScore.css">
+    <link rel="stylesheet" href="/css/navBar.css">
+    <link rel="stylesheet" href="/css/footer.css">
+</head>
+<body>
+<!-- navbar-->
+<div id="navbar-container"></div>
+<div class="title-h1">
+    <h1>Score Change</h1>
+</div>
+<div class="container">
+    <div id="matchDetails">
+        <h2>Score Change</h2>
+        <form id="updateMatchForm">
+            <label for="scoreA">Score A:</label>
+            <input type="number" id="scoreA" name="scoreA" min="0" required>
+
+            <label for="scoreB">Score B:</label>
+            <input type="number" id="scoreB" name="scoreB" min="0" required>
+
+            <label for="winnerId">Winner ID:</label>
+            <input type="number" id="winnerId" name="winnerId" min="0" required>
+
+<!--            <label for="sport">Sport: </label>-->
+            <input type="text" id="sport" name="sport" required><br>
+<!--            <label for="playerAId">Player A ID: </label>-->
+            <input type="number" id="playerAId" name="playerAId" required><br>
+<!--            <label for="playerBId">Player B ID: </label>-->
+            <input type="number" id="playerBId" name="playerBId" required><br>
+            <label for="planTime">Plan Time: </label>
+            <input type="datetime-local" id="planTime" name="planTime" required><br>
+<!--            <label for="status">Status: </label>-->
+            <input type="text" id="status" name="status" required><br>
+<!--            <label for="confirmByA">Confirm by A: </label>-->
+            <input type="checkbox" id="confirmByA" name="confirmByA"><br>
+<!--            <label for="confirmByB">Confirm by B: </label>-->
+            <input type="checkbox" id="confirmByB" name="confirmByB"><br>
+            <button type="submit">Update Score</button>
+        </form>
+        <button onclick="history.back()" class="cancel-btn">Cancel</button>
+    </div>
+</div>
+
+<div id="footer-container"></div>
+<script src="/js/navBar.js"></script>
+<script src="/js/footer.js"></script>
+<script>
+    loadNavbar('navbar-container');
+    loadFooter('footer-container');
+</script>
+    <script src="/js/matchDetailChangeScore.js"></script>
+</body>
+</html>
diff --git a/src/main/resources/static/html/matchTable.html b/src/main/resources/static/html/matchTable.html
new file mode 100644
index 0000000000000000000000000000000000000000..645cec2c6b2449d61922b27abe9c7df7535aeca5
--- /dev/null
+++ b/src/main/resources/static/html/matchTable.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Match Table</title>
+</head>
+<body>
+
+</body>
+</html>
\ No newline at end of file
diff --git a/src/main/resources/static/html/navBar.html b/src/main/resources/static/html/navBar.html
index fa6157844d83f9834b3f8cb2e2cfae1b8a22d941..1714c606e7e43f48c70a1701ac8034f9794b263f 100644
--- a/src/main/resources/static/html/navBar.html
+++ b/src/main/resources/static/html/navBar.html
@@ -6,15 +6,22 @@
     <ul class="nav-links">
         <li><a href="#">News</a></li>
         <li><a href="#">Videos</a></li>
-        <li><a href="#">Rules</a></li>
+        <li><a href="http://localhost:8080/html/rules.html">Rules</a></li>
         <li><a href="#">Players</a></li>
         <li><a href="http://localhost:8080/html/matchSchedule.html">Matches</a></li>
         <li><a href="http://localhost:8080/html/ranking.html">Rankings</a></li>
     </ul>
     <!--    put login、 signup subscribe links here-->
+<!--    <div class="auth-buttons">-->
+<!--        <button class="login-btn">Login</button>-->
+<!--            <li><a href="/html/login.html">Login</a></li>-->
+<!--        <button class="signup-btn">Sign Up</button>-->
+<!--        <button class="subscribe-btn">Subscribe</button>-->
+<!--    </div>-->
     <div class="auth-buttons">
-        <button class="login-btn">Login</button>
-        <button class="signup-btn">Sign Up</button>
-        <button class="subscribe-btn">Subscribe</button>
+        <a href="http://localhost:8080/html/login.html" class="login-btn">Login</a>
+        <a href="http://localhost:8080/html/register.html" class="signup-btn">Sign Up</a>
+        <a href="html/subscribe.html" class="subscribe-btn">Subscribe</a>
     </div>
+
 </nav>
\ No newline at end of file
diff --git a/src/main/resources/static/html/register.html b/src/main/resources/static/html/register.html
index 46980270a34fb92189a0907254579284ec4b6d57..e478e34d24abd4144a7331027f2d859500a927fe 100644
--- a/src/main/resources/static/html/register.html
+++ b/src/main/resources/static/html/register.html
@@ -4,14 +4,15 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>User Registration</title>
-  <link rel="stylesheet" href="/css/index.css">
+  <link rel="stylesheet" href="/css/register.css"> <!-- Link to external CSS file -->
   <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
   <script src="/js/bcrypt.min.js"></script>
-
 </head>
+
 <body>
-<h1>User Register</h1>
+
 <form id="registerForm">
+  <h1>User Registration</h1>
   <label for="username">Username:</label>
   <input type="username" id="username" name="username" required><br>
 
@@ -25,7 +26,6 @@
 </form>
 
 <p id="message"></p>
-
 <script>
   $(document).ready(function () {
     $('#registerForm').on('submit', async function (e) {
diff --git a/src/main/resources/static/html/rules.html b/src/main/resources/static/html/rules.html
new file mode 100644
index 0000000000000000000000000000000000000000..80f23205ff3515fa836962eb1dfb9a4d0f13d330
--- /dev/null
+++ b/src/main/resources/static/html/rules.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Sports Rules</title>
+    <link rel="stylesheet" href="/css/navBar.css">
+    <link rel="stylesheet" href="/css/footer.css">
+    <link rel="stylesheet" href="/css/search.css"> <!-- 自定义样式 -->
+</head>
+<body>
+<!-- 导航栏 -->
+<div id="navbar-container"></div>
+
+<!-- 主内容 -->
+<main>
+    <div class="search-container">
+        <input id="search-bar" type="text" placeholder="Search for rules...">
+        <div id="search-results"></div>
+    </div>
+</main>
+
+<!-- 页脚 -->
+<div id="footer-container"></div>
+
+<!-- 脚本 -->
+<script src="/js/navBar.js"></script>
+<script src="/js/footer.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/fuse.js@6"></script> <!-- Fuse.js -->
+<script src="/js/search.js"></script>
+<script>
+    loadNavbar('navbar-container');
+    loadFooter('footer-container');
+</script>
+</body>
+</html>
+
diff --git a/src/main/resources/static/html/table-tennis rules.html b/src/main/resources/static/html/table-tennis rules.html
new file mode 100644
index 0000000000000000000000000000000000000000..6cd574831894515cc6cc6095db257c9ac82ca29e
--- /dev/null
+++ b/src/main/resources/static/html/table-tennis rules.html	
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Table Tennis Rules</title>
+  <link rel="stylesheet" href="/css/navBar.css">
+  <link rel="stylesheet" href="/css/footer.css">
+</head>
+<body>
+<!-- 导航栏 -->
+<div id="navbar-container"></div>
+
+<!-- 主内容 -->
+<main>
+  <h1>Table Tennis Rules</h1>
+  <h2>Basic Rules:</h2>
+  <ol>
+    <li><strong>Coin toss:</strong> Whoever wins the coin toss decides whether to serve first or choose a side of the table.</li>
+    <li><strong>Service:</strong> A coin toss will determine who serves first. The game then starts with a serve. The server must toss the ball and strike it so it bounces once on their side and once on the opponent's side. If the ball touches the net but still lands on the opponent's side, the serve is replayed without penalty (this is called a "let").</li>
+    <li><strong>Scoring:</strong> A point is scored after each ball is put into play. Points can be scored by the receiver if the server fails to make a correct service or return. Conversely, the server scores if the receiver fails to return the ball correctly. The rally continues until one player fails to return the ball according to the rules.</li>
+    <li><strong>Game Play:</strong> The standard game in competitive table tennis is played to 11 points. However, a player must win by at least a 2-point margin. If the score ties at 10-10, play continues until one player gains a 2-point lead.
+      <ul>
+        <li>In a 10-10 situation, the next point will be an advantage point which is then lost if levelled (i.e., the score goes back to 10-10). When 2 consecutive points are scored, the final score becomes 12-10.</li>
+      </ul>
+    </li>
+  </ol>
+
+  <h2>Match Format:</h2>
+  <ul>
+    <li><strong>Individual Matches:</strong> A match is best of 3 games. This means the first player to win 2 games wins the match. The players should swap sides after every game played.</li>
+  </ul>
+
+  <h2>Service Alternation:</h2>
+  <p><strong>Players</strong> alternate serving every two points. In the event of a 10-10 tie, service alternates after every point.</p>
+</main>
+
+<!-- 页脚 -->
+<div id="footer-container"></div>
+
+<!-- 脚本 -->
+<script src="/js/navBar.js"></script>
+<script src="/js/footer.js"></script>
+<script>
+  loadNavbar('navbar-container');
+  loadFooter('footer-container');
+</script>
+</body>
+</html>
diff --git a/src/main/resources/static/js/jquery-3.6.0.min.js b/src/main/resources/static/js/jquery-3.6.0.min.js
new file mode 100644
index 0000000000000000000000000000000000000000..c4c6022f2982e8dae64cebd6b9a2b59f2547faad
--- /dev/null
+++ b/src/main/resources/static/js/jquery-3.6.0.min.js
@@ -0,0 +1,2 @@
+/*! jQuery v3.6.0 | (c) OpenJS Foundation and other contributors | jquery.org/license */
+!function(e,t){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=e.document?t(e,!0):function(e){if(!e.document)throw new Error("jQuery requires a window with a document");return t(e)}:t(e)}("undefined"!=typeof window?window:this,function(C,e){"use strict";var t=[],r=Object.getPrototypeOf,s=t.slice,g=t.flat?function(e){return t.flat.call(e)}:function(e){return t.concat.apply([],e)},u=t.push,i=t.indexOf,n={},o=n.toString,v=n.hasOwnProperty,a=v.toString,l=a.call(Object),y={},m=function(e){return"function"==typeof e&&"number"!=typeof e.nodeType&&"function"!=typeof e.item},x=function(e){return null!=e&&e===e.window},E=C.document,c={type:!0,src:!0,nonce:!0,noModule:!0};function b(e,t,n){var r,i,o=(n=n||E).createElement("script");if(o.text=e,t)for(r in c)(i=t[r]||t.getAttribute&&t.getAttribute(r))&&o.setAttribute(r,i);n.head.appendChild(o).parentNode.removeChild(o)}function w(e){return null==e?e+"":"object"==typeof e||"function"==typeof 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diff --git a/src/main/resources/static/js/matchDetail.js b/src/main/resources/static/js/matchDetail.js
index 85ae5c2c7fd346128501164f943e6b6cc2029765..0cb7b2fe9a9018dbffd183c1d5ba1a5e99916b77 100644
--- a/src/main/resources/static/js/matchDetail.js
+++ b/src/main/resources/static/js/matchDetail.js
@@ -8,6 +8,11 @@
 
     const matchInfo = document.getElementById('matchInfo');
     const matchScore = document.getElementById('matchScore');
+    // btn give the id
+    const updateBtn = document.getElementById("updateBtn");
+        updateBtn.addEventListener('click', function (){
+            window.location.href = `/html/matchDetailChangeScore.html?id=${id}`;
+        })
     matchScore.innerHTML = `<p><strong></strong>${matchData.scoreA} - ${matchData.scoreB}</p>
 `
     matchInfo.innerHTML = `
diff --git a/src/main/resources/static/js/matchDetailChangeScore.js b/src/main/resources/static/js/matchDetailChangeScore.js
new file mode 100644
index 0000000000000000000000000000000000000000..7c9f1c0f39ede7683f9cfbe372a6366ed789c69b
--- /dev/null
+++ b/src/main/resources/static/js/matchDetailChangeScore.js
@@ -0,0 +1,67 @@
+loadNavbar('navbar-container');
+loadFooter('footer-container');
+const urlParams = new URLSearchParams(window.location.search);
+const matchId = urlParams.get('id');
+
+async function fetchMatchDetails(id) {
+    try {
+        const response = await fetch(`/match/${id}`);
+        const matchData = await response.json();
+        document.getElementById('sport').value =  matchData.sport;
+        document.getElementById('playerAId').value =  matchData.playerAId;
+        document.getElementById('playerBId').value =  matchData.playerBId;
+        document.getElementById('planTime').value =  matchData.planTime;
+        document.getElementById('status').value =  matchData.status;
+        document.getElementById('scoreA').value =  matchData.scoreA;
+        document.getElementById('scoreB').value =  matchData.scoreB;
+        document.getElementById('confirmByA').checked =  matchData.confirmByA;
+        document.getElementById('confirmByB').checked =  matchData.confirmByB;
+        document.getElementById('winnerId').value =  matchData.winnerId;
+        // document.getElementById('scoreA').value = matchData.scoreA;
+        // document.getElementById('scoreB').value = matchData.scoreB;
+        // document.getElementById('winnerId').value = matchData.winnerId ? matchData.winnerId : '';
+    } catch (error) {
+        console.error('Error fetching match details:', error);
+    }
+}
+
+document.getElementById('updateMatchForm').addEventListener('submit', async function(event) {
+    // prevent evnts
+    event.preventDefault();
+
+
+    const updatedMatch = {
+        sport: document.getElementById('sport').value,
+        playerAId: document.getElementById('playerAId').value,
+        playerBId: document.getElementById('playerBId').value,
+        planTime: document.getElementById('planTime').value,
+        status: document.getElementById('status').value,
+        scoreA: document.getElementById('scoreA').value,
+        scoreB: document.getElementById('scoreB').value,
+        confirmByA: document.getElementById('confirmByA').checked,
+        confirmByB: document.getElementById('confirmByB').checked,
+        winnerId: document.getElementById('winnerId').value
+    };
+
+    try {
+        const res = await fetch(`/match/${matchId}`, {
+            method: 'PUT',
+            headers: {
+                'Content-Type': 'application/json'
+            },
+            body: JSON.stringify(updatedMatch)
+        });
+
+        if (res.ok) {
+            alert('Match updated successfully');
+            window.location.href = `/html/matchDetail.html?id=${matchId}`;
+        } else {
+            alert('Failed to update match');
+        }
+    } catch (err) {
+        console.error('error updating match:', err);
+        alert('error updating match');
+    }
+});
+
+fetchMatchDetails(matchId);
\ No newline at end of file
diff --git a/src/main/resources/static/js/search.js b/src/main/resources/static/js/search.js
new file mode 100644
index 0000000000000000000000000000000000000000..419844a490c363bc4ed1b31367871e8d1fb60e97
--- /dev/null
+++ b/src/main/resources/static/js/search.js
@@ -0,0 +1,79 @@
+// 数据库
+const data = [
+    {
+        title: 'Pools Rules',
+        description: 'Learn the basic rules of pools, including scoring and penalties.',
+        url: 'https://rileys.co.uk/games/english-pool'
+    },
+    {
+        title: 'Darts Rules',
+        description: 'An overview of darts rules, including fouls and court dimensions.',
+        url: 'http://localhost:8080/html/dartsrules.html'
+    },
+    {
+        title: 'Table-Tennis Rules',
+        description: 'Understand the rules of table-tennis, including scoring and serving.',
+        url: 'http://localhost:8080/html/table-tennis.html'
+    },
+
+];
+
+// 初始化 Fuse.js
+const fuse = new Fuse(data, {
+    includeScore: true,
+    keys: ['title', 'description']
+});
+
+// 元素获取
+const searchBar = document.getElementById('search-bar');
+const searchResults = document.getElementById('search-results');
+
+// 页面加载时显示所有规则
+renderResults(data);
+
+// 搜索监听
+searchBar.addEventListener('input', (event) => {
+    const query = event.target.value.trim();
+    if (query === '') {
+        renderResults(data); // 显示全部
+        return;
+    }
+
+    // 执行搜索
+    const results = fuse.search(query).map(result => result.item);
+    renderResults(results);
+});
+
+// 渲染结果
+function renderResults(results) {
+    searchResults.innerHTML = '';
+
+    if (results.length === 0) {
+        searchResults.innerHTML = '<p>No results found.</p>';
+        return;
+    }
+
+    results.forEach(item => {
+        const { title, description, url } = item;
+
+        // 创建结果项
+        const itemDiv = document.createElement('div');
+        itemDiv.className = 'search-result-item';
+
+        const link = document.createElement('a');
+        link.href = url;
+        link.target = '_blank';
+
+        const titleElement = document.createElement('h3');
+        titleElement.textContent = title;
+
+        const descriptionElement = document.createElement('p');
+        descriptionElement.textContent = description;
+
+        link.appendChild(titleElement);
+        itemDiv.appendChild(link);
+        itemDiv.appendChild(descriptionElement);
+        searchResults.appendChild(itemDiv);
+    });
+}
+
diff --git a/src/main/resources/static/pics/photo.jpg b/src/main/resources/static/pics/photo.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..b4f050d36e92f0e73d664d6a67699b83c1cff538
Binary files /dev/null and b/src/main/resources/static/pics/photo.jpg differ