diff --git a/exam/Scripts/settings.js b/exam/Scripts/settings.js
index 9a4da35..2a8d8aa 100644
--- a/exam/Scripts/settings.js
+++ b/exam/Scripts/settings.js
@@ -11,11 +11,14 @@ document.addEventListener("DOMContentLoaded", () => {
     const themeLink = document.getElementById("theme-link");
     const configFileInput = document.getElementById("config-file");
     const clearConfigBtn = document.getElementById("clear-config-btn");
+    const themeSelect = document.getElementById("theme-select");
 
     let offsetTime = getCookie("offsetTime") || 0;
     let room = getCookie("room") || "";
     let zoomLevel = getCookie("zoomLevel") || 1;
     let theme = getCookie("theme") || "dark";
+    let currentTheme = getCookie("currentTheme") || "md3";
+    let themeConfig = [];
 
     offsetTime = parseInt(offsetTime);
     roomElem.textContent = room;
@@ -28,6 +31,29 @@ document.addEventListener("DOMContentLoaded", () => {
         themeToggle.checked = false;
     }
 
+    // 加载主题配置
+    fetch('Styles/profile.json')
+        .then(response => response.json())
+        .then(data => {
+            themeConfig = data.theme;
+            // 填充主题选择下拉框
+            themeConfig.forEach(theme => {
+                const option = document.createElement('option');
+                option.value = theme.path || theme.type;
+                option.textContent = theme.name;
+                themeSelect.appendChild(option);
+            });
+            themeSelect.value = currentTheme;
+            updateThemeLink();
+        })
+        .catch(error => errorSystem.show('加载主题配置失败: ' + error.message));
+
+    function updateThemeLink() {
+        const themePath = currentTheme;
+        const isDark = !themeToggle.checked;
+        themeLink.href = `Styles/${themePath}/${isDark ? 'dark' : 'light'}.css`;
+    }
+
     settingsBtn.addEventListener("click", () => {
         try {
             offsetTimeInput.value = offsetTime;
@@ -57,10 +83,12 @@ document.addEventListener("DOMContentLoaded", () => {
             room = roomInput.value;
             zoomLevel = parseFloat(zoomInput.value);
             theme = themeToggle.checked ? "light" : "dark";
+            currentTheme = themeSelect.value;
             setCookie("offsetTime", offsetTime, 365);
             setCookie("room", room, 365);
             setCookie("zoomLevel", zoomLevel, 365);
             setCookie("theme", theme, 365);
+            setCookie("currentTheme", currentTheme, 365);
             roomElem.textContent = room;
             document.body.style.zoom = zoomLevel;
             themeLink.href = theme === "light" ? "Styles/light.css" : "Styles/dark.css";
@@ -76,9 +104,13 @@ document.addEventListener("DOMContentLoaded", () => {
         }
     });
 
+    themeSelect.addEventListener("change", () => {
+        currentTheme = themeSelect.value;
+        updateThemeLink();
+    });
+
     themeToggle.addEventListener("change", () => {
-        const theme = themeToggle.checked ? "light" : "dark";
-        themeLink.href = theme === "light" ? "Styles/light.css" : "Styles/dark.css";
+        updateThemeLink();
     });
 
     configFileInput.addEventListener("change", (event) => {
diff --git a/exam/Styles/ealg/dark.css b/exam/Styles/ealg/dark.css
new file mode 100644
index 0000000..d67391c
--- /dev/null
+++ b/exam/Styles/ealg/dark.css
@@ -0,0 +1,458 @@
+body {
+    font-family: 'Roboto', 'HarmonyOS Sans SC', sans-serif;
+    margin: 0;
+    padding: 0;
+    background: #1C1B1F;
+    color: #E6E1E5;
+    overflow: auto;
+}
+
+body::-webkit-scrollbar {
+    display: none;
+}
+
+#fullscreen-btn, #settings-btn {
+    position: absolute;
+    top: 20px;
+    padding: 12px 24px;
+    font-size: 1rem;
+    cursor: pointer;
+    background-color: #4A4458;
+    color: #E6E1E5;
+    border: none;
+    border-radius: 20px;
+    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
+    transition: all 0.2s ease;
+    z-index: 1001;
+}
+
+#fullscreen-btn {
+    right: 20px;
+}
+
+#settings-btn {
+    right: 120px;
+}
+
+#settings-btn:hover, #fullscreen-btn:hover {
+    background-color: #635B70;
+    transform: translateY(-1px);
+    box-shadow: 0 2px 6px rgba(0,0,0,0.4);
+}
+
+.container {
+    padding: 24px;
+    max-width: 1400px;
+    margin: auto;
+    background-color: #333333;
+    border-radius: 28px;
+    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
+}
+
+h1 {
+    font-size: 3.5rem;
+    font-weight: 400;
+    text-align: left;
+    margin-bottom: 16px;
+    color: #E6E1E5;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+}
+
+#room {
+    font-size: 3.5rem;
+    font-weight: 400;
+    color: #E6E1E5;
+    margin-left: 20px;
+}
+
+#message {
+    font-size: 1.5rem;
+    color: #D0BCFF;
+    margin-bottom: 24px;
+}
+
+.content {
+    display: flex;
+    justify-content: space-between;
+    gap: 24px;
+}
+
+.left-column, .right-column {
+    display: flex;
+    flex-direction: column;
+    gap: 24px;
+}
+
+.left-column {
+    width: 45%;
+}
+
+.right-column {
+    width: 50%;
+}
+
+.clock-section, .info-section, .right-column {
+    background-color: #404040;
+    padding: 24px;
+    border-radius: 28px;
+    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
+}
+
+#current-time {
+    font-size: 8rem;
+    text-align: center;
+    color: #FFFFFF;
+    margin: 0;
+    font-weight: 400;
+}
+
+#current-subject, #exam-timing, #remaining-time, #status {
+    font-size: 3rem;
+    margin: 16px 0;
+    text-align: left;
+    color: #FFFFFF;
+}
+
+table {
+    width: 100%;
+    border-collapse: separate;
+    border-spacing: 0;
+    margin-top: 24px;
+    background-color: #4A4A4A;
+    border-radius: 16px;
+    overflow: hidden;
+}
+
+th, td {
+    padding: 1px;
+    font-size: 1.8rem;
+    text-align: center;
+    border-bottom: 1px solid #555555;
+}
+
+th {
+    background-color: transparent;
+    color: #FFFFFF;
+    font-weight: 500;
+}
+
+tr:hover {
+    background-color: #555555;
+}
+
+.exam-status-tag {
+    padding: 6px 12px;
+    border-radius: 8px;
+    font-size: 1.2rem;
+    font-weight: 500;
+}
+
+.exam-status-进行中 {
+    background-color: #365534;
+    color: #90D480;
+}
+
+.exam-status-即将开始 {
+    background-color: #594300;
+    color: #FFB960;
+}
+
+.exam-status-已结束 {
+    background-color: #5C1130;
+    color: #FFB3B3;
+}
+
+.exam-status-未开始 {
+    background-color: #4A4458;
+    color: #E6E1E5;
+}
+
+#settings-modal {
+    display: none;
+    position: fixed;
+    z-index: 1000;
+    left: 0;
+    top: 0;
+    width: 100%;
+    height: 100%;
+    background-color: rgba(0,0,0,0.6);
+    backdrop-filter: blur(8px);
+}
+
+#settings-modal-content {
+    background: #404040;
+    padding: 32px 48px 32px 32px;
+    margin: 32px auto;
+    border-radius: 28px;
+    width: 600px;
+    max-height: 60vh;
+    overflow-y: auto;
+    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
+}
+
+#settings-modal-content::-webkit-scrollbar {
+    width: 8px;
+}
+
+#settings-modal-content::-webkit-scrollbar-track {
+    background: transparent;
+    margin: 4px;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb {
+    background: #4A4458;
+    border-radius: 8px;
+    border: 2px solid #2B2930;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb:hover {
+    background: #635B70;
+}
+
+#settings-modal-content h3 {
+    margin: 0 0 24px;
+    color: #E6E1E5;
+    font-size: 24px;
+    font-weight: 400;
+}
+
+#settings-modal-content label {
+    display: flex;
+    align-items: center;
+    gap: 16px;
+    margin: 16px 0;
+    font-size: 16px;
+    color: #E6E1E5;
+}
+
+#settings-modal-content input[type="number"],
+#settings-modal-content input[type="text"] {
+    font-size: 1.5rem;
+    padding: 12px 16px;
+    margin: 8px 0 24px;
+    width: 100%;
+    box-sizing: border-box;
+    border: 2px solid #4A4458;
+    border-radius: 12px;
+    background-color: #332D41;
+    color: #E6E1E5;
+    transition: all 0.2s ease;
+}
+
+#settings-modal-content input:focus {
+    outline: none;
+    border-color: #D0BCFF;
+    background-color: #4A4458;
+}
+
+.button-group {
+    display: flex;
+    justify-content: flex-end;
+    gap: 16px;
+    margin-top: 32px;
+}
+
+#save-settings-btn, #close-settings-btn {
+    padding: 12px 24px;
+    border-radius: 20px;
+    font-size: 16px;
+    font-weight: 500;
+    border: none;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+#save-settings-btn {
+    background-color: #D0BCFF;
+    color: #1C1B1F;
+}
+
+#close-settings-btn {
+    background-color: #4A4458;
+    color: #E6E1E5;
+}
+
+#save-settings-btn:hover, #close-settings-btn:hover {
+    transform: translateY(-1px);
+    box-shadow: 0 2px 6px rgba(0,0,0,0.4);
+}
+
+.error-container {
+    position: fixed;
+    bottom: 24px;
+    left: 50%;
+    transform: translateX(-50%);
+    background: #5C1130;
+    color: #FFB3B3;
+    padding: 16px 24px;
+    border-radius: 16px;
+    display: none;
+    z-index: 10001;
+    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
+    animation: slideUp 0.3s ease;
+}
+
+.switch {
+    position: relative;
+    display: inline-block;
+    width: 52px;
+    height: 32px;
+}
+
+.slider {
+    position: absolute;
+    cursor: pointer;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: #4A4458;
+    transition: .3s;
+    border-radius: 16px;
+}
+
+.slider:before {
+    position: absolute;
+    content: "";
+    height: 24px;
+    width: 24px;
+    left: 4px;
+    bottom: 4px;
+    background-color: #E6E1E5;
+    transition: .3s;
+    border-radius: 50%;
+}
+
+input:checked + .slider {
+    background-color: #D0BCFF;
+}
+
+input:checked + .slider:before {
+    transform: translateX(20px);
+    background-color: #1C1B1F;
+}
+
+.config-file-container {
+    margin: 24px 0;
+    padding: 24px;
+    border: 2px solid #555555;
+    border-radius: 20px;
+    background-color: #4A4A4A;
+    transition: all 0.2s ease;
+}
+
+.config-file-container:hover {
+    border-color: #D0BCFF;
+    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
+}
+
+.config-file-container input[type="file"] {
+    max-width: 100%;
+    width: auto;
+    box-sizing: border-box;
+    padding: 12px;
+    border: 2px dashed #4A4458;
+    border-radius: 16px;
+    background-color: #332D41;
+    color: #E6E1E5;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.config-file-container input[type="file"]::-webkit-file-upload-button {
+    padding: 8px 16px;
+    margin-right: 12px;
+    background-color: #4A4458;
+    color: #E6E1E5;
+    border: none;
+    border-radius: 12px;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.config-file-container input[type="file"]::-webkit-file-upload-button:hover {
+    background-color: #635B70;
+}
+
+.file-hint {
+    margin-top: 12px;
+    font-size: 14px;
+    color: #CAC4D0;
+    line-height: 1.5;
+}
+
+.config-control-btn {
+    margin-top: 20px;
+    padding: 12px 28px;
+    background-color: #4A4458;
+    color: #E6E1E5;
+    border: none;
+    border-radius: 24px;
+    cursor: pointer;
+    font-size: 14px;
+    font-weight: 500;
+    transition: all 0.2s ease;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.config-control-btn:hover {
+    background-color: #635B70;
+    transform: translateY(-1px);
+    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
+}
+
+.theme-toggle-container {
+    margin: 24px 0;
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+}
+
+#theme-select {
+    width: 100%;
+    padding: 12px 16px;
+    font-size: 1.2rem;
+    background-color: #404040;
+    color: #FFFFFF;
+    border: 2px solid #555555;
+    border-radius: 12px;
+    cursor: pointer;
+    appearance: none;
+    -webkit-appearance: none;
+    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
+    background-repeat: no-repeat;
+    background-position: right 16px center;
+    background-size: 16px;
+}
+
+#theme-select:hover {
+    background-color: #4A4A4A;
+    border-color: #666666;
+}
+
+#theme-select:focus {
+    outline: none;
+    border-color: #D0BCFF;
+    background-color: #4A4A4A;
+}
+
+#theme-select option {
+    background-color: #404040;
+    color: #FFFFFF;
+    padding: 12px;
+}
+
+#theme-select option:hover,
+#theme-select option:focus {
+    background-color: #4A4A4A;
+}
+
+.theme-toggle-container label {
+    font-size: 16px;
+    color: #E6E1E5;
+    margin-bottom: 8px;
+}
diff --git a/exam/Styles/ealg/light.css b/exam/Styles/ealg/light.css
new file mode 100644
index 0000000..ebc7250
--- /dev/null
+++ b/exam/Styles/ealg/light.css
@@ -0,0 +1,458 @@
+body {
+    font-family: 'Roboto', 'HarmonyOS Sans SC', sans-serif;
+    margin: 0;
+    padding: 0;
+    background: #FFFBFE;
+    color: #1C1B1F;
+    overflow: auto;
+}
+
+body::-webkit-scrollbar {
+    display: none;
+}
+
+#fullscreen-btn, #settings-btn {
+    position: absolute;
+    top: 20px;
+    padding: 12px 24px;
+    font-size: 1rem;
+    cursor: pointer;
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+    border: none;
+    border-radius: 20px;
+    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
+    transition: all 0.2s ease;
+    z-index: 1001;
+}
+
+#fullscreen-btn {
+    right: 20px;
+}
+
+#settings-btn {
+    right: 120px;
+}
+
+#settings-btn:hover, #fullscreen-btn:hover {
+    background-color: #D0BCFF;
+    transform: translateY(-1px);
+    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
+}
+
+.container {
+    padding: 24px;
+    max-width: 1400px;
+    margin: auto;
+    background-color: #FFFFFF;
+    border-radius: 28px;
+    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
+}
+
+h1 {
+    font-size: 3.5rem;
+    font-weight: 400;
+    text-align: left;
+    margin-bottom: 16px;
+    color: #1C1B1F;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+}
+
+#room {
+    font-size: 3.5rem;
+    font-weight: 400;
+    color: #1C1B1F;
+    margin-left: 20px;
+}
+
+#message {
+    font-size: 1.5rem;
+    color: #6750A4;
+    margin-bottom: 24px;
+}
+
+.content {
+    display: flex;
+    justify-content: space-between;
+    gap: 24px;
+}
+
+.left-column, .right-column {
+    display: flex;
+    flex-direction: column;
+    gap: 24px;
+}
+
+.left-column {
+    width: 45%;
+}
+
+.right-column {
+    width: 50%;
+}
+
+.clock-section, .info-section, .right-column {
+    background-color: #FFFFFF;
+    padding: 24px;
+    border-radius: 28px;
+    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
+}
+
+#current-time {
+    font-size: 8rem;
+    text-align: center;
+    color: #000000;
+    margin: 0;
+    font-weight: 400;
+}
+
+#current-subject, #exam-timing, #remaining-time, #status {
+    font-size: 3rem;
+    margin: 16px 0;
+    text-align: left;
+    color: #000000;
+}
+
+table {
+    width: 100%;
+    border-collapse: separate;
+    border-spacing: 0;
+    margin-top: 24px;
+    background-color: #FFFFFF;
+    border-radius: 16px;
+    overflow: hidden;
+}
+
+th, td {
+    padding: 1px;
+    font-size: 1.8rem;
+    text-align: center;
+    border-bottom: 1px solid #E8DEF8;
+}
+
+th {
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+    font-weight: 500;
+}
+
+tr:hover {
+    background-color: #F7F2FA;
+}
+
+.exam-status-tag {
+    padding: 6px 12px;
+    border-radius: 8px;
+    font-size: 1.2rem;
+    font-weight: 500;
+}
+
+.exam-status-进行中 {
+    background-color: #DDF4D7;
+    color: #365534;
+}
+
+.exam-status-即将开始 {
+    background-color: #FFF2D6;
+    color: #594300;
+}
+
+.exam-status-已结束 {
+    background-color: #FFDAD6;
+    color: #5C1130;
+}
+
+.exam-status-未开始 {
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+}
+
+#settings-modal {
+    display: none;
+    position: fixed;
+    z-index: 1000;
+    left: 0;
+    top: 0;
+    width: 100%;
+    height: 100%;
+    background-color: rgba(0,0,0,0.3);
+    backdrop-filter: blur(8px);
+}
+
+#settings-modal-content {
+    background: #FFFFFF;
+    padding: 32px 48px 32px 32px;
+    margin: 32px auto;
+    border-radius: 28px;
+    width: 600px;
+    max-height: 60vh;
+    overflow-y: auto;
+    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
+}
+
+#settings-modal-content::-webkit-scrollbar {
+    width: 8px;
+}
+
+#settings-modal-content::-webkit-scrollbar-track {
+    background: transparent;
+    margin: 4px;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb {
+    background: #E8DEF8;
+    border-radius: 8px;
+    border: 2px solid #FFFFFF;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb:hover {
+    background: #D0BCFF;
+}
+
+#settings-modal-content h3 {
+    margin: 0 0 24px;
+    color: #1C1B1F;
+    font-size: 24px;
+    font-weight: 400;
+}
+
+#settings-modal-content label {
+    display: flex;
+    align-items: center;
+    gap: 16px;
+    margin: 16px 0;
+    font-size: 16px;
+    color: #1C1B1F;
+}
+
+#settings-modal-content input[type="number"],
+#settings-modal-content input[type="text"] {
+    font-size: 1.5rem;
+    padding: 12px 16px;
+    margin: 8px 0 24px;
+    width: 100%;
+    box-sizing: border-box;
+    border: 2px solid #E8DEF8;
+    border-radius: 12px;
+    background-color: #FFFFFF;
+    color: #1C1B1F;
+    transition: all 0.2s ease;
+}
+
+#settings-modal-content input:focus {
+    outline: none;
+    border-color: #6750A4;
+    background-color: #F7F2FA;
+}
+
+.button-group {
+    display: flex;
+    justify-content: flex-end;
+    gap: 16px;
+    margin-top: 32px;
+}
+
+#save-settings-btn, #close-settings-btn {
+    padding: 12px 24px;
+    border-radius: 20px;
+    font-size: 16px;
+    font-weight: 500;
+    border: none;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+#save-settings-btn {
+    background-color: #6750A4;
+    color: #FFFFFF;
+}
+
+#close-settings-btn {
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+}
+
+#save-settings-btn:hover, #close-settings-btn:hover {
+    transform: translateY(-1px);
+    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
+}
+
+.error-container {
+    position: fixed;
+    bottom: 24px;
+    left: 50%;
+    transform: translateX(-50%);
+    background: #FFDAD6;
+    color: #5C1130;
+    padding: 16px 24px;
+    border-radius: 16px;
+    display: none;
+    z-index: 10001;
+    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
+    animation: slideUp 0.3s ease;
+}
+
+.switch {
+    position: relative;
+    display: inline-block;
+    width: 52px;
+    height: 32px;
+}
+
+.slider {
+    position: absolute;
+    cursor: pointer;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: #E8DEF8;
+    transition: .3s;
+    border-radius: 16px;
+}
+
+.slider:before {
+    position: absolute;
+    content: "";
+    height: 24px;
+    width: 24px;
+    left: 4px;
+    bottom: 4px;
+    background-color: #FFFFFF;
+    transition: .3s;
+    border-radius: 50%;
+}
+
+input:checked + .slider {
+    background-color: #6750A4;
+}
+
+input:checked + .slider:before {
+    transform: translateX(20px);
+    background-color: #FFFFFF;
+}
+
+.config-file-container {
+    margin: 24px 0;
+    padding: 24px;
+    border: 2px solid #E8DEF8;
+    border-radius: 20px;
+    background-color: #F7F2FA;
+    transition: all 0.2s ease;
+}
+
+.config-file-container:hover {
+    border-color: #6750A4;
+    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+}
+
+.config-file-container input[type="file"] {
+    max-width: 100%;
+    width: auto;
+    box-sizing: border-box;
+    padding: 12px;
+    border: 2px dashed #E8DEF8;
+    border-radius: 16px;
+    background-color: #FFFFFF;
+    color: #1C1B1F;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.config-file-container input[type="file"]::-webkit-file-upload-button {
+    padding: 8px 16px;
+    margin-right: 12px;
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+    border: none;
+    border-radius: 12px;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.config-file-container input[type="file"]::-webkit-file-upload-button:hover {
+    background-color: #D0BCFF;
+}
+
+.file-hint {
+    margin-top: 12px;
+    font-size: 14px;
+    color: #49454F;
+    line-height: 1.5;
+}
+
+.config-control-btn {
+    margin-top: 20px;
+    padding: 12px 28px;
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+    border: none;
+    border-radius: 24px;
+    cursor: pointer;
+    font-size: 14px;
+    font-weight: 500;
+    transition: all 0.2s ease;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.config-control-btn:hover {
+    background-color: #D0BCFF;
+    transform: translateY(-1px);
+    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
+}
+
+.theme-toggle-container {
+    margin: 24px 0;
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+}
+
+#theme-select {
+    width: 100%;
+    padding: 12px 16px;
+    font-size: 1.2rem;
+    background-color: #FFFFFF;
+    color: #1C1B1F;
+    border: 2px solid #E8DEF8;
+    border-radius: 12px;
+    cursor: pointer;
+    appearance: none;
+    -webkit-appearance: none;
+    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
+    background-repeat: no-repeat;
+    background-position: right 16px center;
+    background-size: 16px;
+}
+
+#theme-select:hover {
+    background-color: #F7F2FA;
+    border-color: #D0BCFF;
+}
+
+#theme-select:focus {
+    outline: none;
+    border-color: #6750A4;
+    background-color: #F7F2FA;
+}
+
+#theme-select option {
+    background-color: #FFFFFF;
+    color: #1C1B1F;
+    padding: 12px;
+}
+
+#theme-select option:hover,
+#theme-select option:focus {
+    background-color: #F7F2FA;
+}
+
+.theme-toggle-container label {
+    font-size: 16px;
+    color: #1C1B1F;
+    margin-bottom: 8px;
+}
diff --git a/exam/Styles/dark.css b/exam/Styles/md3/dark.css
similarity index 85%
rename from exam/Styles/dark.css
rename to exam/Styles/md3/dark.css
index 069813d..4050392 100644
--- a/exam/Styles/dark.css
+++ b/exam/Styles/md3/dark.css
@@ -404,3 +404,55 @@ input:checked + .slider:before {
     transform: translateY(-1px);
     box-shadow: 0 2px 8px rgba(0,0,0,0.4);
 }
+
+.theme-toggle-container {
+    margin: 24px 0;
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+}
+
+#theme-select {
+    width: 100%;
+    padding: 12px 16px;
+    font-size: 1.2rem;
+    background-color: #332D41;
+    color: #E6E1E5;
+    border: 2px solid #4A4458;
+    border-radius: 12px;
+    cursor: pointer;
+    appearance: none;
+    -webkit-appearance: none;
+    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
+    background-repeat: no-repeat;
+    background-position: right 16px center;
+    background-size: 16px;
+}
+
+#theme-select:hover {
+    background-color: #4A4458;
+    border-color: #635B70;
+}
+
+#theme-select:focus {
+    outline: none;
+    border-color: #D0BCFF;
+    background-color: #4A4458;
+}
+
+#theme-select option {
+    background-color: #332D41;
+    color: #E6E1E5;
+    padding: 12px;
+}
+
+#theme-select option:hover,
+#theme-select option:focus {
+    background-color: #4A4458;
+}
+
+.theme-toggle-container label {
+    font-size: 16px;
+    color: #E6E1E5;
+    margin-bottom: 8px;
+}
diff --git a/exam/Styles/md3/light.css b/exam/Styles/md3/light.css
new file mode 100644
index 0000000..f14f50b
--- /dev/null
+++ b/exam/Styles/md3/light.css
@@ -0,0 +1,458 @@
+body {
+    font-family: 'Roboto', 'HarmonyOS Sans SC', sans-serif;
+    margin: 0;
+    padding: 0;
+    background: #FFFBFE;
+    color: #1C1B1F;
+    overflow: auto;
+}
+
+body::-webkit-scrollbar {
+    display: none;
+}
+
+#fullscreen-btn, #settings-btn {
+    position: absolute;
+    top: 20px;
+    padding: 12px 24px;
+    font-size: 1rem;
+    cursor: pointer;
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+    border: none;
+    border-radius: 20px;
+    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
+    transition: all 0.2s ease;
+    z-index: 1001;
+}
+
+#fullscreen-btn {
+    right: 20px;
+}
+
+#settings-btn {
+    right: 120px;
+}
+
+#settings-btn:hover, #fullscreen-btn:hover {
+    background-color: #D0BCFF;
+    transform: translateY(-1px);
+    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
+}
+
+.container {
+    padding: 24px;
+    max-width: 1400px;
+    margin: auto;
+    background-color: #F7F2FA;
+    border-radius: 28px;
+    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
+}
+
+h1 {
+    font-size: 3.5rem;
+    font-weight: 400;
+    text-align: left;
+    margin-bottom: 16px;
+    color: #1C1B1F;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+}
+
+#room {
+    font-size: 3.5rem;
+    font-weight: 400;
+    color: #1C1B1F;
+    margin-left: 20px;
+}
+
+#message {
+    font-size: 1.5rem;
+    color: #6750A4;
+    margin-bottom: 24px;
+}
+
+.content {
+    display: flex;
+    justify-content: space-between;
+    gap: 24px;
+}
+
+.left-column, .right-column {
+    display: flex;
+    flex-direction: column;
+    gap: 24px;
+}
+
+.left-column {
+    width: 45%;
+}
+
+.right-column {
+    width: 50%;
+}
+
+.clock-section, .info-section, .right-column {
+    background-color: #FFFFFF;
+    padding: 24px;
+    border-radius: 28px;
+    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
+}
+
+#current-time {
+    font-size: 8rem;
+    text-align: center;
+    color: #6750A4;
+    margin: 0;
+    font-weight: 400;
+}
+
+#current-subject, #exam-timing, #remaining-time, #status {
+    font-size: 3rem;
+    margin: 16px 0;
+    text-align: left;
+    color: #1C1B1F;
+}
+
+table {
+    width: 100%;
+    border-collapse: separate;
+    border-spacing: 0;
+    margin-top: 24px;
+    background-color: #FFFFFF;
+    border-radius: 16px;
+    overflow: hidden;
+}
+
+th, td {
+    padding: 1px;
+    font-size: 1.8rem;
+    text-align: center;
+    border-bottom: 1px solid #E8DEF8;
+}
+
+th {
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+    font-weight: 500;
+}
+
+tr:hover {
+    background-color: #F7F2FA;
+}
+
+.exam-status-tag {
+    padding: 6px 12px;
+    border-radius: 8px;
+    font-size: 1.2rem;
+    font-weight: 500;
+}
+
+.exam-status-进行中 {
+    background-color: #DDF4D7;
+    color: #365534;
+}
+
+.exam-status-即将开始 {
+    background-color: #FFF2D6;
+    color: #594300;
+}
+
+.exam-status-已结束 {
+    background-color: #FFDAD6;
+    color: #5C1130;
+}
+
+.exam-status-未开始 {
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+}
+
+#settings-modal {
+    display: none;
+    position: fixed;
+    z-index: 1000;
+    left: 0;
+    top: 0;
+    width: 100%;
+    height: 100%;
+    background-color: rgba(0,0,0,0.3);
+    backdrop-filter: blur(8px);
+}
+
+#settings-modal-content {
+    background: #FFFFFF;
+    padding: 32px 48px 32px 32px;
+    margin: 32px auto;
+    border-radius: 28px;
+    width: 600px;
+    max-height: 60vh;
+    overflow-y: auto;
+    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
+}
+
+#settings-modal-content::-webkit-scrollbar {
+    width: 8px;
+}
+
+#settings-modal-content::-webkit-scrollbar-track {
+    background: transparent;
+    margin: 4px;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb {
+    background: #E8DEF8;
+    border-radius: 8px;
+    border: 2px solid #FFFFFF;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb:hover {
+    background: #D0BCFF;
+}
+
+#settings-modal-content h3 {
+    margin: 0 0 24px;
+    color: #1C1B1F;
+    font-size: 24px;
+    font-weight: 400;
+}
+
+#settings-modal-content label {
+    display: flex;
+    align-items: center;
+    gap: 16px;
+    margin: 16px 0;
+    font-size: 16px;
+    color: #1C1B1F;
+}
+
+#settings-modal-content input[type="number"],
+#settings-modal-content input[type="text"] {
+    font-size: 1.5rem;
+    padding: 12px 16px;
+    margin: 8px 0 24px;
+    width: 100%;
+    box-sizing: border-box;
+    border: 2px solid #E8DEF8;
+    border-radius: 12px;
+    background-color: #FFFFFF;
+    color: #1C1B1F;
+    transition: all 0.2s ease;
+}
+
+#settings-modal-content input:focus {
+    outline: none;
+    border-color: #6750A4;
+    background-color: #F7F2FA;
+}
+
+.button-group {
+    display: flex;
+    justify-content: flex-end;
+    gap: 16px;
+    margin-top: 32px;
+}
+
+#save-settings-btn, #close-settings-btn {
+    padding: 12px 24px;
+    border-radius: 20px;
+    font-size: 16px;
+    font-weight: 500;
+    border: none;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+#save-settings-btn {
+    background-color: #6750A4;
+    color: #FFFFFF;
+}
+
+#close-settings-btn {
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+}
+
+#save-settings-btn:hover, #close-settings-btn:hover {
+    transform: translateY(-1px);
+    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
+}
+
+.error-container {
+    position: fixed;
+    bottom: 24px;
+    left: 50%;
+    transform: translateX(-50%);
+    background: #FFDAD6;
+    color: #5C1130;
+    padding: 16px 24px;
+    border-radius: 16px;
+    display: none;
+    z-index: 10001;
+    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
+    animation: slideUp 0.3s ease;
+}
+
+.switch {
+    position: relative;
+    display: inline-block;
+    width: 52px;
+    height: 32px;
+}
+
+.slider {
+    position: absolute;
+    cursor: pointer;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: #E8DEF8;
+    transition: .3s;
+    border-radius: 16px;
+}
+
+.slider:before {
+    position: absolute;
+    content: "";
+    height: 24px;
+    width: 24px;
+    left: 4px;
+    bottom: 4px;
+    background-color: #FFFFFF;
+    transition: .3s;
+    border-radius: 50%;
+}
+
+input:checked + .slider {
+    background-color: #6750A4;
+}
+
+input:checked + .slider:before {
+    transform: translateX(20px);
+    background-color: #FFFFFF;
+}
+
+.config-file-container {
+    margin: 24px 0;
+    padding: 24px;
+    border: 2px solid #E8DEF8;
+    border-radius: 20px;
+    background-color: #F7F2FA;
+    transition: all 0.2s ease;
+}
+
+.config-file-container:hover {
+    border-color: #6750A4;
+    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+}
+
+.config-file-container input[type="file"] {
+    max-width: 100%;
+    width: auto;
+    box-sizing: border-box;
+    padding: 12px;
+    border: 2px dashed #E8DEF8;
+    border-radius: 16px;
+    background-color: #FFFFFF;
+    color: #1C1B1F;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.config-file-container input[type="file"]::-webkit-file-upload-button {
+    padding: 8px 16px;
+    margin-right: 12px;
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+    border: none;
+    border-radius: 12px;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.config-file-container input[type="file"]::-webkit-file-upload-button:hover {
+    background-color: #D0BCFF;
+}
+
+.file-hint {
+    margin-top: 12px;
+    font-size: 14px;
+    color: #49454F;
+    line-height: 1.5;
+}
+
+.config-control-btn {
+    margin-top: 20px;
+    padding: 12px 28px;
+    background-color: #E8DEF8;
+    color: #1C1B1F;
+    border: none;
+    border-radius: 24px;
+    cursor: pointer;
+    font-size: 14px;
+    font-weight: 500;
+    transition: all 0.2s ease;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.config-control-btn:hover {
+    background-color: #D0BCFF;
+    transform: translateY(-1px);
+    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
+}
+
+.theme-toggle-container {
+    margin: 24px 0;
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+}
+
+#theme-select {
+    width: 100%;
+    padding: 12px 16px;
+    font-size: 1.2rem;
+    background-color: #FFFFFF;
+    color: #1C1B1F;
+    border: 2px solid #E8DEF8;
+    border-radius: 12px;
+    cursor: pointer;
+    appearance: none;
+    -webkit-appearance: none;
+    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
+    background-repeat: no-repeat;
+    background-position: right 16px center;
+    background-size: 16px;
+}
+
+#theme-select:hover {
+    background-color: #F7F2FA;
+    border-color: #D0BCFF;
+}
+
+#theme-select:focus {
+    outline: none;
+    border-color: #6750A4;
+    background-color: #F7F2FA;
+}
+
+#theme-select option {
+    background-color: #FFFFFF;
+    color: #1C1B1F;
+    padding: 12px;
+}
+
+#theme-select option:hover,
+#theme-select option:focus {
+    background-color: #F7F2FA;
+}
+
+.theme-toggle-container label {
+    font-size: 16px;
+    color: #1C1B1F;
+    margin-bottom: 8px;
+}
diff --git a/exam/Styles/old/background.jpg b/exam/Styles/old/background.jpg
new file mode 100644
index 0000000..88e4466
Binary files /dev/null and b/exam/Styles/old/background.jpg differ
diff --git a/exam/Styles/old/background_light.jpg b/exam/Styles/old/background_light.jpg
new file mode 100644
index 0000000..ff45a61
Binary files /dev/null and b/exam/Styles/old/background_light.jpg differ
diff --git a/exam/Styles/old/dark.css b/exam/Styles/old/dark.css
new file mode 100644
index 0000000..04d46a4
--- /dev/null
+++ b/exam/Styles/old/dark.css
@@ -0,0 +1,517 @@
+body {
+    font-family: 'HarmonyOS Sans SC Regular', 'Roboto', Arial, sans-serif;
+    margin: 0;
+    padding: 0;
+    background: url('background.jpg') no-repeat center center fixed; /* 更新路径 */
+    background-size: cover;
+    animation: fadeIn 1s;
+    color: #e0e0e0;
+    overflow: auto; /* 允许页面滚动 */
+}
+
+/* 隐藏滚动条 */
+body::-webkit-scrollbar {
+    display: none;
+}
+
+@keyframes fadeIn {
+    from { opacity: 0; }
+    to { opacity: 1; }
+}
+
+#fullscreen-btn, #settings-btn {
+    position: absolute;
+    top: 20px;
+    padding: 10px 20px;
+    font-size: 1rem;
+    cursor: pointer;
+    background-color: #1f1f1f;
+    color: #e0e0e0;
+    border: 1px solid #333;
+    border-radius: 5px;
+    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
+    transition: background-color 0.3s ease, transform 0.3s ease;
+    z-index: 1001;
+}
+
+#fullscreen-btn {
+    right: 20px;
+}
+
+#settings-btn {
+    right: 120px; /* Fullscreen button's left */
+}
+
+#settings-btn:hover, #fullscreen-btn:hover {
+    background-color: #333;
+    transform: scale(1.05);
+}
+
+.container {
+    padding: 20px;
+    max-width: 1400px; /* 增加主体部分宽度 */
+    margin: auto;
+    background-color: rgba(0, 0, 0, 0.4); /* 使用rgba设置背景透明度为80% */
+}
+
+h1 {
+    font-size: 3.5rem;
+    font-weight: bold;
+    text-align: left;
+    margin-bottom: 10px;
+    color: #e0e0e0;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+}
+
+#room {
+    font-size: 3.5rem;
+    font-weight: bold;
+    color: #e0e0e0;
+    position: relative;
+    right: 0;
+    margin-left: 20px; /* 调整位置使其保持在container中 */
+}
+
+#message {
+    font-size: 1.5rem;
+    color: #16a3d1;
+    margin-bottom: 20px;
+}
+
+.content {
+    display: flex;
+    justify-content: space-between;
+    gap: 3px; /* 板块间隔3px */
+}
+
+.left-column, .right-column {
+    display: flex;
+    flex-direction: column;
+    gap: 3px;
+}
+
+.left-column {
+    width: 45%;
+}
+
+.right-column {
+    width: 50%;
+}
+
+.clock-section, .info-section, .right-column {
+    background-color: rgba(31, 31, 31, 0.5); /* 亚克力效果 */
+    backdrop-filter: blur(10px);
+    padding: 20px;
+    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
+    border-radius: 8px;
+    margin-bottom: 20px; /* 增加时钟和信息板块之间的间隔 */
+}
+
+#current-time {
+    font-size: 8rem;
+    text-align: center;
+    color: #7cc3fb;
+    margin: 0;
+    font-weight: bold;
+}
+
+#current-subject, #exam-timing, #remaining-time, #status {
+    font-size: 3rem;
+    margin: 10px 0;
+    text-align: left;
+    color: #e0e0e0;
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    margin-top: 20px;
+    border: 1px solid rgba(255, 255, 255, 0.75);
+    background-color: rgba(31, 31, 31, 0.5);
+}
+
+th, td {
+    border: 1px solid #fff;
+    padding: 0px; /* 缩短行高 */
+    font-size: 1.8rem;
+    text-align: center;
+}
+
+th {
+    background-color: #333;
+    color: #7cc3fb;
+    font-weight: bold;
+    border-bottom: 2px solid #fff;
+}
+
+tr:hover {
+    background-color: #333;
+}
+
+table {
+    border-radius: 8px;
+    overflow: hidden;
+}
+
+td {
+    border-bottom: 1px solid #fff;
+}
+
+td:first-child {
+    border-top-left-radius: 8px;
+    border-bottom-left-radius: 8px;
+}
+
+td:last-child {
+    border-top-right-radius: 8px;
+    border-bottom-right-radius: 8px;
+}
+
+.exam-status-tag {
+    padding: 3px 6px;
+    border-radius: 4px;
+    font-size: 1.2rem;
+    display: inline-block;
+    min-width: 60px;
+}
+
+.exam-status-进行中 {
+    background-color: rgba(91, 168, 56, 0.2);
+    color: #5ba838;
+}
+
+.exam-status-即将开始 {
+    background-color: rgba(254, 153, 1, 0.2);
+    color: #fe9901;
+}
+
+.exam-status-已结束 {
+    background-color: rgba(236, 4, 52, 0.2);
+    color: #ec0434;
+}
+
+.exam-status-未开始 {
+    background-color: rgba(238, 238, 91, 0.2);
+    color: #eeee5b;
+}
+
+#settings-modal {
+    display: none;
+    position: fixed;
+    z-index: 1000;
+    left: 0;
+    top: 0;
+    width: 100%;
+    height: 100%;
+    overflow: auto;
+    background-color: rgb(0, 0, 0);
+    background-color: rgba(0, 0, 0, 0.4);
+    padding-top: 60px;
+}
+
+#settings-modal-content {
+    background: rgba(31, 31, 31, 0.95);
+    padding: 25px;
+    margin: 25px auto;
+    border-radius: 12px;
+    border: 1px solid #444;
+    backdrop-filter: blur(8px);
+    max-width: 600px;
+    max-height: 60vh;  /* 限制最大高度 */
+    overflow-y: auto;  /* 允许垂直滚动 */
+    animation: fadeIn 0.5s ease;
+}
+
+/* 设置滚动条样式 */
+#settings-modal-content::-webkit-scrollbar {
+    width: 8px;
+}
+
+#settings-modal-content::-webkit-scrollbar-track {
+    background: rgba(31, 31, 31, 0.5);
+    border-radius: 4px;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb {
+    background: #666;
+    border-radius: 4px;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb:hover {
+    background: #888;
+}
+
+@keyframes fadeIn {
+    from { opacity: 0; transform: translateY(-20px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+
+@keyframes fadeOut {
+    from { opacity: 1; transform: translateY(0); }
+    to { opacity: 0; transform: translateY(-20px); }
+}
+
+.fade-out {
+    animation: fadeOut 0.3s ease;
+}
+
+#settings-modal-content h3 {
+    margin: 0 0 20px;
+    color: #e0e0e0;
+    font-size: 20px;
+}
+
+#settings-modal-content label {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    margin: 12px 0;
+    font-size: 16px;
+    color: #b0b0b0;
+}
+
+#settings-modal-content label[for="offset-time"],
+#settings-modal-content label[for="room-input"],
+#settings-modal-content label[for="zoom-input"] {
+    justify-content: space-between;
+}
+
+#settings-modal-content input[type="number"],
+#settings-modal-content input[type="text"] {
+    flex-grow: 1;
+    margin-left: 10px;
+    font-size: 1.5rem;
+    padding: 10px;
+    margin-top: 10px;
+    margin-bottom: 20px;
+    width: 100%;
+    box-sizing: border-box;
+    border: 1px solid #555;
+    border-radius: 5px;
+    background-color: #222;
+    color: #e0e0e0;
+}
+
+#settings-modal-content input:focus {
+    outline: none;
+    border-color: #007acc;
+    box-shadow: 0 0 0 1px #007acc;
+}
+
+.button-group {
+    display: flex;
+    justify-content: flex-end;
+    gap: 10px;
+}
+
+#settings-modal-content button {
+    background: linear-gradient(135deg, #3498db, #2980b9);
+    color: white;
+    border: none;
+    padding: 12px 24px;
+    border-radius: 8px;
+    cursor: pointer;
+    font-size: 15px;
+    font-weight: 500;
+    transition: all 0.2s ease;
+    box-shadow: 0 4px 12px rgba(52,152,219,0.25);
+}
+
+#settings-modal-content button:hover {
+    transform: translateY(-1px);
+    box-shadow: 0 6px 16px rgba(52,152,219,0.35);
+}
+
+#close-settings-btn {
+    padding: 10px 20px;
+    font-size: 2rem;
+    cursor: pointer;
+    background-color: #d9534f;
+    color: white;
+    border: none;
+    border-radius: 5px;
+    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
+    transition: background-color 0.3s ease;
+}
+
+#close-settings-btn:hover {
+    background-color: #c9302c;
+}
+
+.error-container {
+    position: fixed;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    background: #ff6b6b;
+    color: white;
+    padding: 16px;
+    display: none;
+    z-index: 10001;
+    animation: slideUp 0.3s ease;
+}
+
+@keyframes slideUp {
+    from { transform: translateY(100%); }
+    to { transform: translateY(0); }
+}
+
+.error-content {
+    max-width: 800px;
+    margin: 0 auto;
+    font-size: 15px;
+    display: flex;
+    align-items: center;
+    gap: 12px;
+}
+
+.error-content:before {
+    content: '!';
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 24px;
+    height: 24px;
+    background: white;
+    color: #ff6b6b;
+    border-radius: 50%;
+    font-weight: bold;
+}
+
+.switch {
+    position: relative;
+    display: inline-block;
+    width: 60px;
+    height: 34px;
+}
+
+.switch input {
+    opacity: 0;
+    width: 0;
+    height: 0;
+}
+
+.slider {
+    position: absolute;
+    cursor: pointer;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: #ccc;
+    transition: .4s;
+    border-radius: 34px;
+}
+
+.slider:before {
+    position: absolute;
+    content: "";
+    height: 26px;
+    width: 26px;
+    left: 4px;
+    bottom: 4px;
+    background-color: white;
+    transition: .4s;
+    border-radius: 50%;
+}
+
+input:checked + .slider {
+    background-color: #2196F3;
+}
+
+input:checked + .slider:before {
+    transform: translateX(26px);
+}
+
+.theme-toggle-container {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 10px;
+}
+
+#theme-select {
+    padding: 8px 12px;
+    font-size: 14px;
+    border: 1px solid #555;
+    border-radius: 4px;
+    background-color: #222;
+    color: #e0e0e0;
+    cursor: pointer;
+    outline: none;
+    width: 120px;
+}
+
+#theme-select:hover {
+    border-color: #666;
+}
+
+#theme-select:focus {
+    border-color: #007acc;
+    box-shadow: 0 0 0 1px #007acc;
+}
+
+#theme-select option {
+    background-color: #222;
+    color: #e0e0e0;
+    padding: 8px;
+}
+
+.config-file-container {
+    margin: 12px 0;
+    padding: 10px;
+    border: 1px solid #555;
+    border-radius: 5px;
+    background-color: rgba(31, 31, 31, 0.5);
+    box-sizing: border-box;
+    max-width: 100%;
+}
+
+.config-file-container label {
+    display: block;
+    margin-bottom: 8px;
+    color: #e0e0e0;
+}
+
+.config-file-container input[type="file"] {
+    display: block;
+    width: calc(100% - 16px);  /* 减去padding的宽度 */
+    padding: 8px;
+    border: 1px solid #555;
+    border-radius: 4px;
+    background-color: #222;
+    color: #e0e0e0;
+    cursor: pointer;
+    box-sizing: border-box;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+.config-file-container input[type="file"]:hover {
+    background-color: #333;
+}
+
+.file-hint {
+    margin-top: 4px;
+    font-size: 12px;
+    color: #888;
+}
+
+.config-control-btn {
+    margin-top: 10px;
+    padding: 8px 16px;
+    background-color: #d9534f;
+    color: white;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+    font-size: 14px;
+    transition: background-color 0.3s ease;
+}
+
+.config-control-btn:hover {
+    background-color: #c9302c;
+}
diff --git a/exam/Styles/old/light.css b/exam/Styles/old/light.css
new file mode 100644
index 0000000..993f126
--- /dev/null
+++ b/exam/Styles/old/light.css
@@ -0,0 +1,522 @@
+body {
+    font-family: 'HarmonyOS Sans SC Regular', 'Roboto', Arial, sans-serif;
+    margin: 0;
+    padding: 0;
+    background: url('background_light.jpg') no-repeat center center fixed;
+    background-size: cover;
+    animation: fadeIn 1s;
+    color: #333;
+    overflow: auto;
+}
+
+body::-webkit-scrollbar {
+    display: none;
+}
+
+@keyframes fadeIn {
+    from { opacity: 0; }
+    to { opacity: 1; }
+}
+
+#fullscreen-btn, #settings-btn {
+    position: absolute;
+    top: 20px;
+    padding: 10px 20px;
+    font-size: 1rem;
+    cursor: pointer;
+    background-color: #f0f0f0;
+    color: #333;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
+    transition: background-color 0.3s ease, transform 0.3s ease;
+    z-index: 1001;
+}
+
+#fullscreen-btn {
+    right: 20px;
+}
+
+#settings-btn {
+    right: 120px;
+}
+
+#settings-btn:hover, #fullscreen-btn:hover {
+    background-color: #ccc;
+    transform: scale(1.05);
+}
+
+.container {
+    padding: 20px;
+    max-width: 1400px;
+    margin: auto;
+    background-color: rgba(255, 255, 255, 0.4);
+}
+
+h1 {
+    font-size: 3.5rem;
+    font-weight: bold;
+    text-align: left;
+    margin-bottom: 10px;
+    color: #333;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+}
+
+#room {
+    font-size: 3.5rem;
+    font-weight: bold;
+    color: #333;
+    position: relative;
+    right: 0;
+    margin-left: 20px;
+}
+
+#message {
+    font-size: 1.5rem;
+    color: #16a3d1;
+    margin-bottom: 20px;
+}
+
+.content {
+    display: flex;
+    justify-content: space-between;
+    gap: 3px;
+}
+
+.left-column, .right-column {
+    display: flex;
+    flex-direction: column;
+    gap: 3px;
+}
+
+.left-column {
+    width: 45%;
+}
+
+.right-column {
+    width: 50%;
+}
+
+.clock-section, .info-section, .right-column {
+    background-color: rgba(255, 255, 255, 0.2);
+    backdrop-filter: blur(10px);
+    padding: 20px;
+    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
+    border-radius: 8px;
+}
+
+.clock-section, .info-section {
+    margin-bottom: 20px; /* 增加时钟和信息板块之间的间隔 */
+}
+
+#current-time {
+    font-size: 8rem;
+    text-align: center;
+    color: #333;
+    margin: 0;
+    font-weight: bold;
+}
+
+#current-subject, #exam-timing, #remaining-time, #status {
+    font-size: 3rem;
+    margin: 10px 0;
+    text-align: left;
+    color: #333;
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    margin-top: 20px;
+    border: 1px solid #000;
+    background-color: rgba(255, 255, 255, 0.5);
+}
+
+th, td {
+    border: 1px solid #000;
+    padding: 0px;
+    font-size: 1.8rem;
+    text-align: center;
+}
+
+th {
+    background-color: #f0f0f0;
+    color: #333;
+    font-weight: bold;
+    border-bottom: 2px solid #000;
+}
+
+tr:hover {
+    background-color: #f0f0f0;
+}
+
+table {
+    border-radius: 8px;
+    overflow: hidden;
+}
+
+td {
+    border-bottom: 1px solid #000;
+}
+
+td:first-child {
+    border-top-left-radius: 8px;
+    border-bottom-left-radius: 8px;
+}
+
+td:last-child {
+    border-top-right-radius: 8px;
+    border-bottom-right-radius: 8px;
+}
+
+.exam-status-tag {
+    padding: 3px 6px;
+    border-radius: 4px;
+    font-size: 1.2rem;
+    display: inline-block;
+    min-width: 60px;
+}
+
+.exam-status-进行中 {
+    background-color: rgba(91, 168, 56, 0.1);
+    color: #5ba838;
+}
+
+.exam-status-即将开始 {
+    background-color: rgba(254, 153, 1, 0.1);
+    color: #fe9901;
+}
+
+.exam-status-已结束 {
+    background-color: rgba(236, 4, 52, 0.1);
+    color: #ec0434;
+}
+
+.exam-status-未开始 {
+    background-color: rgba(238, 238, 91, 0.1);
+    color: #d4b106;
+}
+
+#settings-modal {
+    display: none;
+    position: fixed;
+    z-index: 1000;
+    left: 0;
+    top: 0;
+    width: 100%;
+    height: 100%;
+    overflow: auto;
+    background-color: rgba(0, 0, 0, 0.4);
+    padding-top: 60px;
+}
+
+#settings-modal-content {
+    background: rgba(255, 255, 255, 0.95);
+    padding: 25px;
+    margin: 25px auto;
+    border-radius: 12px;
+    border: 1px solid #ccc;
+    backdrop-filter: blur(8px);
+    max-width: 600px;
+    max-height: 60vh;  /* 限制最大高度 */
+    overflow-y: auto;  /* 允许垂直滚动 */
+    animation: fadeIn 0.5s ease;
+}
+
+/* 设置滚动条样式 */
+#settings-modal-content::-webkit-scrollbar {
+    width: 8px;
+}
+
+#settings-modal-content::-webkit-scrollbar-track {
+    background: rgba(0, 0, 0, 0.1);
+    border-radius: 4px;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb {
+    background: #ccc;
+    border-radius: 4px;
+}
+
+#settings-modal-content::-webkit-scrollbar-thumb:hover {
+    background: #999;
+}
+
+@keyframes fadeIn {
+    from { opacity: 0; transform: translateY(-20px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+
+@keyframes fadeOut {
+    from { opacity: 1; transform: translateY(0); }
+    to { opacity: 0; transform: translateY(-20px); }
+}
+
+.fade-out {
+    animation: fadeOut 0.3s ease;
+}
+
+#settings-modal-content h3 {
+    margin: 0 0 20px;
+    color: #333;
+    font-size: 20px;
+}
+
+#settings-modal-content label {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    margin: 12px 0;
+    font-size: 16px;
+    color: #666;
+}
+
+#settings-modal-content label[for="offset-time"],
+#settings-modal-content label[for="room-input"],
+#settings-modal-content label[for="zoom-input"] {
+    justify-content: space-between;
+}
+
+#settings-modal-content input[type="number"],
+#settings-modal-content input[type="text"] {
+    flex-grow: 1;
+    margin-left: 10px;
+}
+
+#settings-modal-content input[type="number"],
+#settings-modal-content input[type="text"] {
+    font-size: 1.5rem;
+    padding: 10px;
+    margin-top: 10px;
+    margin-bottom: 20px;
+    width: 100%;
+    box-sizing: border-box;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+    background-color: #fff;
+    color: #333;
+}
+
+#settings-modal-content input:focus {
+    outline: none;
+    border-color: #007acc;
+    box-shadow: 0 0 0 1px #007acc;
+}
+
+.button-group {
+    display: flex;
+    justify-content: flex-end;
+    gap: 10px;
+}
+
+#settings-modal-content button {
+    background: linear-gradient(135deg, #3498db, #2980b9);
+    color: white;
+    border: none;
+    padding: 12px 24px;
+    border-radius: 8px;
+    cursor: pointer;
+    font-size: 15px;
+    font-weight: 500;
+    transition: all 0.2s ease;
+    box-shadow: 0 4px 12px rgba(52,152,219,0.25);
+}
+
+#settings-modal-content button:hover {
+    transform: translateY(-1px);
+    box-shadow: 0 6px 16px rgba(52,152,219,0.35);
+}
+
+#close-settings-btn {
+    padding: 10px 20px;
+    font-size: 2rem;
+    cursor: pointer;
+    background-color: #d9534f;
+    color: white;
+    border: none;
+    border-radius: 5px;
+    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
+    transition: background-color 0.3s ease;
+}
+
+#close-settings-btn:hover {
+    background-color: #c9302c;
+}
+
+.error-container {
+    position: fixed;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    background: #ff6b6b;
+    color: white;
+    padding: 16px;
+    display: none;
+    z-index: 10001;
+    animation: slideUp 0.3s ease;
+}
+
+@keyframes slideUp {
+    from { transform: translateY(100%); }
+    to { transform: translateY(0); }
+}
+
+.error-content {
+    max-width: 800px;
+    margin: 0 auto;
+    font-size: 15px;
+    display: flex;
+    align-items: center;
+    gap: 12px;
+}
+
+.error-content:before {
+    content: '!';
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 24px;
+    height: 24px;
+    background: white;
+    color: #ff6b6b;
+    border-radius: 50%;
+    font-weight: bold;
+}
+
+.switch {
+    position: relative;
+    display: inline-block;
+    width: 60px;
+    height: 34px;
+}
+
+.switch input {
+    opacity: 0;
+    width: 0;
+    height: 0;
+}
+
+.slider {
+    position: absolute;
+    cursor: pointer;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: #ccc;
+    transition: .4s;
+    border-radius: 34px;
+}
+
+.slider:before {
+    position: absolute;
+    content: "";
+    height: 26px;
+    width: 26px;
+    left: 4px;
+    bottom: 4px;
+    background-color: white;
+    transition: .4s;
+    border-radius: 50%;
+}
+
+input:checked + .slider {
+    background-color: #2196F3;
+}
+
+input:checked + .slider:before {
+    transform: translateX(26px);
+}
+
+.theme-toggle-container {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 10px;
+}
+
+#theme-select {
+    padding: 8px 12px;
+    font-size: 14px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    background-color: #fff;
+    color: #333;
+    cursor: pointer;
+    outline: none;
+    width: 120px;
+}
+
+#theme-select:hover {
+    border-color: #999;
+}
+
+#theme-select:focus {
+    border-color: #007acc;
+    box-shadow: 0 0 0 1px #007acc;
+}
+
+#theme-select option {
+    background-color: #fff;
+    color: #333;
+    padding: 8px;
+}
+
+.config-file-container {
+    margin: 12px 0;
+    padding: 10px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+    background-color: rgba(255, 255, 255, 0.5);
+    box-sizing: border-box;
+    max-width: 100%;
+}
+
+.config-file-container label {
+    display: block;
+    margin-bottom: 8px;
+    color: #333;
+}
+
+.config-file-container input[type="file"] {
+    display: block;
+    width: calc(100% - 16px);  /* 减去padding的宽度 */
+    padding: 8px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    background-color: #fff;
+    color: #333;
+    cursor: pointer;
+    box-sizing: border-box;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+.config-file-container input[type="file"]:hover {
+    background-color: #f5f5f5;
+}
+
+.file-hint {
+    margin-top: 4px;
+    font-size: 12px;
+    color: #666;
+}
+
+.config-control-btn {
+    margin-top: 10px;
+    padding: 8px 16px;
+    background-color: #d9534f;
+    color: white;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+    font-size: 14px;
+    transition: background-color 0.3s ease;
+}
+
+.config-control-btn:hover {
+    background-color: #c9302c;
+}
diff --git a/exam/index.html b/exam/index.html
index 59ad297..8bcd500 100644
--- a/exam/index.html
+++ b/exam/index.html
@@ -66,6 +66,10 @@
                 <button id="clear-config-btn" class="config-control-btn">清除本地配置</button>
             </div>
             <div class="theme-toggle-container">
+                <label for="theme-select">主题:</label>
+                <select id="theme-select">
+                    <!-- 动态填充主题选项 -->
+                </select>
                 <label for="theme-toggle">亮/暗色模式:</label>
                 <label class="switch">
                     <input type="checkbox" id="theme-toggle">