diff --git a/static/css/components/modal.css b/static/css/components/modal.css
index 1153bbc4..318480e0 100644
--- a/static/css/components/modal.css
+++ b/static/css/components/modal.css
@@ -196,7 +196,7 @@ body.modal-open {
 }
 
 .settings-modal {
-    max-width: 500px;
+    max-width: 650px; /* Further increased from 600px for more space */
 }
 
 /* Settings Links */
@@ -266,14 +266,22 @@ body.modal-open {
     }
 }
 
+/* API key input specific styles */
 .api-key-input {
+    width: 100%; /* Take full width of parent */
     position: relative;
     display: flex;
     align-items: center;
 }
 
 .api-key-input input {
-    padding-right: 40px;
+    width: 100%;
+    padding: 6px 40px 6px 10px; /* Add left padding */
+    height: 32px;
+    border-radius: var(--border-radius-xs);
+    border: 1px solid var(--border-color);
+    background-color: var(--lora-surface);
+    color: var(--text-color);
 }
 
 .api-key-input .toggle-visibility {
@@ -294,8 +302,10 @@ body.modal-open {
 .input-help {
     font-size: 0.85em;
     color: var(--text-color);
-    opacity: 0.8;
-    margin-top: 4px;
+    opacity: 0.7;
+    margin-top: 8px; /* Space between control and help */
+    line-height: 1.4;
+    width: 100%; /* Full width */
 }
 
 /* 统一各个 section 的样式 */
@@ -341,8 +351,8 @@ body.modal-open {
 
 .setting-item {
     display: flex;
-    flex-direction: column;
-    margin-bottom: var(--space-2);
+    flex-direction: column; /* Changed to column for help text placement */
+    margin-bottom: var(--space-3); /* Increased to provide more spacing between items */
     padding: var(--space-1);
     border-radius: var(--border-radius-xs);
 }
@@ -355,35 +365,52 @@ body.modal-open {
     background: rgba(255, 255, 255, 0.05);
 }
 
-.setting-info {
-    margin-bottom: var(--space-1);
+/* Control row with label and input together */
+.setting-row {
+    display: flex;
+    flex-direction: row;
+    justify-content: space-between;
+    align-items: center;
     width: 100%;
 }
 
+.setting-info {
+    margin-bottom: 0;
+    width: 35%; /* Increased from 30% to prevent wrapping */
+    flex-shrink: 0; /* Prevent shrinking */
+}
+
 .setting-info label {
     display: block;
-    margin-bottom: 4px;
     font-weight: 500;
+    margin-bottom: 0;
+    white-space: nowrap; /* Prevent label wrapping */
 }
 
 .setting-control {
-    width: 100%;
-    margin-bottom: var(--space-1);
+    width: 60%; /* Decreased slightly from 65% */
+    margin-bottom: 0;
+    display: flex;
+    justify-content: flex-end; /* Right-align all controls */
 }
 
 /* Select Control Styles */
 .select-control {
     width: 100%;
+    display: flex;
+    justify-content: flex-end;
 }
 
 .select-control select {
     width: 100%;
+    max-width: 100%; /* Increased from 200px */
     padding: 6px 10px;
     border-radius: var(--border-radius-xs);
     border: 1px solid var(--border-color);
     background-color: var(--lora-surface);
     color: var(--text-color);
     font-size: 0.95em;
+    height: 32px;
 }
 
 /* Fix dark theme select dropdown text color */
@@ -409,6 +436,7 @@ body.modal-open {
     width: 50px;
     height: 24px;
     cursor: pointer;
+    margin-left: auto; /* Push to right side */
 }
 
 .toggle-switch input {
@@ -458,15 +486,6 @@ input:checked + .toggle-slider:before {
     width: 22px;
 }
 
-/* Update input help styles */
-.input-help {
-    font-size: 0.85em;
-    color: var(--text-color);
-    opacity: 0.7;
-    margin-top: 4px;
-    line-height: 1.4;
-}
-
 /* Blur effect for NSFW content */
 .nsfw-blur {
     filter: blur(12px);
diff --git a/static/js/components/LoraCard.js b/static/js/components/LoraCard.js
index 64a59a61..c4baee23 100644
--- a/static/js/components/LoraCard.js
+++ b/static/js/components/LoraCard.js
@@ -57,10 +57,15 @@ export function createLoraCard(lora) {
         nsfwText = "R-rated Content";
     }
 
+    // Check if autoplayOnHover is enabled for video previews
+    const autoplayOnHover = state.global.settings.autoplayOnHover || false;
+    const isVideo = previewUrl.endsWith('.mp4');
+    const videoAttrs = autoplayOnHover ? 'controls muted loop' : 'controls autoplay muted loop';
+
     card.innerHTML = `
         <div class="card-preview ${shouldBlur ? 'blurred' : ''}">
-            ${previewUrl.endsWith('.mp4') ? 
-                `<video controls autoplay muted loop>
+            ${isVideo ? 
+                `<video ${videoAttrs}>
                     <source src="${versionedPreviewUrl}" type="video/mp4">
                 </video>` :
                 `<img src="${versionedPreviewUrl}" alt="${lora.model_name}">`
@@ -246,6 +251,26 @@ export function createLoraCard(lora) {
             actionGroup.style.display = 'none';
         });
     }
+    
+    // Add autoplayOnHover handlers for video elements if needed
+    const videoElement = card.querySelector('video');
+    if (videoElement && autoplayOnHover) {
+        const cardPreview = card.querySelector('.card-preview');
+        
+        // Remove autoplay attribute and pause initially
+        videoElement.removeAttribute('autoplay');
+        videoElement.pause();
+        
+        // Add mouse events to trigger play/pause
+        cardPreview.addEventListener('mouseenter', () => {
+            videoElement.play();
+        });
+        
+        cardPreview.addEventListener('mouseleave', () => {
+            videoElement.pause();
+            videoElement.currentTime = 0;
+        });
+    }
 
     return card;
 }
diff --git a/static/js/core.js b/static/js/core.js
index a38fda70..b1edac3c 100644
--- a/static/js/core.js
+++ b/static/js/core.js
@@ -4,7 +4,7 @@ import { LoadingManager } from './managers/LoadingManager.js';
 import { modalManager } from './managers/ModalManager.js';
 import { updateService } from './managers/UpdateService.js';
 import { HeaderManager } from './components/Header.js';
-import { SettingsManager } from './managers/SettingsManager.js';
+import { settingsManager } from './managers/SettingsManager.js';
 import { showToast, initTheme, initBackToTop, lazyLoadImages } from './utils/uiHelpers.js';
 import { initializeInfiniteScroll } from './utils/infiniteScroll.js';
 import { migrateStorageItems } from './utils/storageHelpers.js';
@@ -26,7 +26,7 @@ export class AppCore {
         modalManager.initialize();
         updateService.initialize();
         window.modalManager = modalManager;
-        window.settingsManager = new SettingsManager();
+        window.settingsManager = settingsManager;
         
         // Initialize UI components
         window.headerManager = new HeaderManager();
@@ -76,4 +76,4 @@ document.addEventListener('DOMContentLoaded', () => {
 export const appCore = new AppCore();
 
 // Export common utilities for global use
-export { showToast, lazyLoadImages, initializeInfiniteScroll }; 
\ No newline at end of file
+export { showToast, lazyLoadImages, initializeInfiniteScroll };
\ No newline at end of file
diff --git a/static/js/managers/SettingsManager.js b/static/js/managers/SettingsManager.js
index 50617f52..624eac2c 100644
--- a/static/js/managers/SettingsManager.js
+++ b/static/js/managers/SettingsManager.js
@@ -65,6 +65,12 @@ export class SettingsManager {
             // Sync with state (backend will set this via template)
             state.global.settings.show_only_sfw = showOnlySFWCheckbox.checked;
         }
+        
+        // Set video autoplay on hover setting
+        const autoplayOnHoverCheckbox = document.getElementById('autoplayOnHover');
+        if (autoplayOnHoverCheckbox) {
+            autoplayOnHoverCheckbox.checked = state.global.settings.autoplayOnHover || false;
+        }
 
         // Load default lora root
         await this.loadLoraRoots();
@@ -120,11 +126,170 @@ export class SettingsManager {
         this.isOpen = !this.isOpen;
     }
 
+    // Auto-save methods for different control types
+
+    // For toggle switches
+    async saveToggleSetting(elementId, settingKey) {
+        const element = document.getElementById(elementId);
+        if (!element) return;
+        
+        const value = element.checked;
+        
+        // Update frontend state
+        if (settingKey === 'blur_mature_content') {
+            state.global.settings.blurMatureContent = value;
+        } else if (settingKey === 'show_only_sfw') {
+            state.global.settings.show_only_sfw = value;
+        } else if (settingKey === 'autoplay_on_hover') {
+            state.global.settings.autoplayOnHover = value;
+        } else {
+            // For any other settings that might be added in the future
+            state.global.settings[settingKey] = value;
+        }
+        
+        // Save to localStorage
+        setStorageItem('settings', state.global.settings);
+        
+        try {
+            // For backend settings, make API call
+            if (['show_only_sfw', 'blur_mature_content', 'autoplay_on_hover'].includes(settingKey)) {
+                const payload = {};
+                payload[settingKey] = value;
+                
+                const response = await fetch('/api/settings', {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/json',
+                    },
+                    body: JSON.stringify(payload)
+                });
+
+                if (!response.ok) {
+                    throw new Error('Failed to save setting');
+                }
+                
+                showToast(`${settingKey.replace(/_/g, ' ')} updated`, 'success');
+            }
+            
+            // Apply frontend settings immediately
+            this.applyFrontendSettings();
+            
+            if (settingKey === 'show_only_sfw') {
+                this.reloadContent();
+            }
+            
+        } catch (error) {
+            showToast('Failed to save setting: ' + error.message, 'error');
+        }
+    }
+    
+    // For select dropdowns
+    async saveSelectSetting(elementId, settingKey) {
+        const element = document.getElementById(elementId);
+        if (!element) return;
+        
+        const value = element.value;
+        
+        // Update frontend state
+        if (settingKey === 'default_lora_root') {
+            state.global.settings.default_loras_root = value;
+        } else {
+            // For any other settings that might be added in the future
+            state.global.settings[settingKey] = value;
+        }
+        
+        // Save to localStorage
+        setStorageItem('settings', state.global.settings);
+        
+        try {
+            // For backend settings, make API call
+            const payload = {};
+            payload[settingKey] = value;
+            
+            const response = await fetch('/api/settings', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                },
+                body: JSON.stringify(payload)
+            });
+
+            if (!response.ok) {
+                throw new Error('Failed to save setting');
+            }
+            
+            showToast(`${settingKey.replace(/_/g, ' ')} updated`, 'success');
+            
+        } catch (error) {
+            showToast('Failed to save setting: ' + error.message, 'error');
+        }
+    }
+    
+    // For input fields
+    async saveInputSetting(elementId, settingKey) {
+        const element = document.getElementById(elementId);
+        if (!element) return;
+        
+        const value = element.value;
+        
+        // For API key or other inputs that need to be saved on backend
+        try {
+            // Check if value has changed from existing value
+            const currentValue = state.global.settings[settingKey] || '';
+            if (value === currentValue) {
+                return; // No change, exit early
+            }
+            
+            // Update state
+            state.global.settings[settingKey] = value;
+            
+            // Save to localStorage if appropriate
+            if (!settingKey.includes('api_key')) { // Don't store API keys in localStorage for security
+                setStorageItem('settings', state.global.settings);
+            }
+            
+            // For backend settings, make API call
+            const payload = {};
+            payload[settingKey] = value;
+            
+            const response = await fetch('/api/settings', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                },
+                body: JSON.stringify(payload)
+            });
+
+            if (!response.ok) {
+                throw new Error('Failed to save setting');
+            }
+            
+            showToast(`${settingKey.replace(/_/g, ' ')} updated`, 'success');
+            
+        } catch (error) {
+            showToast('Failed to save setting: ' + error.message, 'error');
+        }
+    }
+
+    async reloadContent() {
+        if (this.currentPage === 'loras') {
+            // Reload the loras without updating folders
+            await resetAndReload(false);
+        } else if (this.currentPage === 'recipes') {
+            // Reload the recipes without updating folders
+            await window.recipeManager.loadRecipes();
+        } else if (this.currentPage === 'checkpoints') {
+            // Reload the checkpoints without updating folders
+            await window.checkpointsManager.loadCheckpoints();
+        }
+    }
+
     async saveSettings() {
         // Get frontend settings from UI
         const blurMatureContent = document.getElementById('blurMatureContent').checked;
         const showOnlySFW = document.getElementById('showOnlySFW').checked;
         const defaultLoraRoot = document.getElementById('defaultLoraRoot').value;
+        const autoplayOnHover = document.getElementById('autoplayOnHover').checked;
         
         // Get backend settings
         const apiKey = document.getElementById('civitaiApiKey').value;
@@ -133,6 +298,7 @@ export class SettingsManager {
         state.global.settings.blurMatureContent = blurMatureContent;
         state.global.settings.show_only_sfw = showOnlySFW;
         state.global.settings.default_loras_root = defaultLoraRoot;
+        state.global.settings.autoplayOnHover = autoplayOnHover;
         
         // Save settings to localStorage
         setStorageItem('settings', state.global.settings);
@@ -186,11 +352,42 @@ export class SettingsManager {
             }
         });
         
+        // Apply autoplay setting to existing videos in card previews
+        const autoplayOnHover = state.global.settings.autoplayOnHover;
+        document.querySelectorAll('.card-preview video').forEach(video => {
+            // Remove previous event listeners by cloning and replacing the element
+            const videoParent = video.parentElement;
+            const videoClone = video.cloneNode(true);
+            
+            if (autoplayOnHover) {
+                // Pause video initially and set up mouse events for hover playback
+                videoClone.removeAttribute('autoplay');
+                videoClone.pause();
+                
+                // Add mouse events to the parent element
+                videoParent.onmouseenter = () => videoClone.play();
+                videoParent.onmouseleave = () => {
+                    videoClone.pause();
+                    videoClone.currentTime = 0;
+                };
+            } else {
+                // Use default autoplay behavior
+                videoClone.setAttribute('autoplay', '');
+                videoParent.onmouseenter = null;
+                videoParent.onmouseleave = null;
+            }
+            
+            videoParent.replaceChild(videoClone, video);
+        });
+        
         // For show_only_sfw, there's no immediate action needed as it affects content loading
         // The setting will take effect on next reload
     }
 }
 
+// Create singleton instance
+export const settingsManager = new SettingsManager();
+
 // Helper function for toggling API key visibility
 export function toggleApiKeyVisibility(button) {
     const input = button.parentElement.querySelector('input');
diff --git a/templates/components/modals.html b/templates/components/modals.html
index 7b82f4bc..2e489d44 100644
--- a/templates/components/modals.html
+++ b/templates/components/modals.html
@@ -17,16 +17,24 @@
         <button class="close" onclick="modalManager.closeModal('settingsModal')">&times;</button>
         <h2>Settings</h2>
         <div class="settings-form">
-            <div class="input-group">
-                <label for="civitaiApiKey">Civitai API Key:</label>
-                <div class="api-key-input">
-                    <input type="password" 
-                           id="civitaiApiKey" 
-                           placeholder="Enter your Civitai API key"
-                           value="{{ settings.get('civitai_api_key', '') }}" />
-                    <button class="toggle-visibility" onclick="toggleApiKeyVisibility(this)">
-                        <i class="fas fa-eye"></i>
-                    </button>
+            <div class="setting-item api-key-item">
+                <div class="setting-row">
+                    <div class="setting-info">
+                        <label for="civitaiApiKey">Civitai API Key:</label>
+                    </div>
+                    <div class="setting-control">
+                        <div class="api-key-input">
+                            <input type="password" 
+                                id="civitaiApiKey" 
+                                placeholder="Enter your Civitai API key"
+                                value="{{ settings.get('civitai_api_key', '') }}"
+                                onblur="settingsManager.saveInputSetting('civitaiApiKey', 'civitai_api_key')"
+                                onkeydown="if(event.key === 'Enter') { this.blur(); }" />
+                            <button class="toggle-visibility" onclick="toggleApiKeyVisibility(this)">
+                                <i class="fas fa-eye"></i>
+                            </button>
+                        </div>
+                    </div>
                 </div>
                 <div class="input-help">
                     Used for authentication when downloading models from Civitai
@@ -37,32 +45,61 @@
                 <h3>Content Filtering</h3>
                 
                 <div class="setting-item">
-                    <div class="setting-info">
-                        <label for="blurMatureContent">Blur NSFW Content</label>
-                        <div class="input-help">
-                            Blur mature (NSFW) content preview images
+                    <div class="setting-row">
+                        <div class="setting-info">
+                            <label for="blurMatureContent">Blur NSFW Content</label>
+                        </div>
+                        <div class="setting-control">
+                            <label class="toggle-switch">
+                                <input type="checkbox" id="blurMatureContent" checked 
+                                       onchange="settingsManager.saveToggleSetting('blurMatureContent', 'blur_mature_content')">
+                                <span class="toggle-slider"></span>
+                            </label>
                         </div>
                     </div>
-                    <div class="setting-control">
-                        <label class="toggle-switch">
-                            <input type="checkbox" id="blurMatureContent" checked>
-                            <span class="toggle-slider"></span>
-                        </label>
+                    <div class="input-help">
+                        Blur mature (NSFW) content preview images
                     </div>
                 </div>
                 
                 <div class="setting-item">
-                    <div class="setting-info">
-                        <label for="showOnlySFW">Show Only SFW Results</label>
-                        <div class="input-help">
-                            Filter out all NSFW content when browsing and searching
+                    <div class="setting-row">
+                        <div class="setting-info">
+                            <label for="showOnlySFW">Show Only SFW Results</label>
+                        </div>
+                        <div class="setting-control">
+                            <label class="toggle-switch">
+                                <input type="checkbox" id="showOnlySFW" value="{{ settings.get('show_only_sfw', False) }}" {% if settings.get('show_only_sfw', False) %}checked{% endif %}
+                                       onchange="settingsManager.saveToggleSetting('showOnlySFW', 'show_only_sfw')">
+                                <span class="toggle-slider"></span>
+                            </label>
                         </div>
                     </div>
-                    <div class="setting-control">
-                        <label class="toggle-switch">
-                            <input type="checkbox" id="showOnlySFW" value="{{ settings.get('show_only_sfw', False) }}" {% if settings.get('show_only_sfw', False) %}checked{% endif %}>
-                            <span class="toggle-slider"></span>
-                        </label>
+                    <div class="input-help">
+                        Filter out all NSFW content when browsing and searching
+                    </div>
+                </div>
+            </div>
+            
+            <!-- Add Video Settings Section -->
+            <div class="settings-section">
+                <h3>Video Settings</h3>
+                
+                <div class="setting-item">
+                    <div class="setting-row">
+                        <div class="setting-info">
+                            <label for="autoplayOnHover">Autoplay Videos on Hover</label>
+                        </div>
+                        <div class="setting-control">
+                            <label class="toggle-switch">
+                                <input type="checkbox" id="autoplayOnHover" 
+                                       onchange="settingsManager.saveToggleSetting('autoplayOnHover', 'autoplay_on_hover')">
+                                <span class="toggle-slider"></span>
+                            </label>
+                        </div>
+                    </div>
+                    <div class="input-help">
+                        Only play video previews when hovering over them
                     </div>
                 </div>
             </div>
@@ -72,14 +109,16 @@
                 <h3>Folder Settings</h3>
                 
                 <div class="setting-item">
-                    <div class="setting-info">
-                        <label for="defaultLoraRoot">Default LoRA Root</label>
-                    </div>
-                    <div class="setting-control select-control">
-                        <select id="defaultLoraRoot">
-                            <option value="">No Default</option>
-                            <!-- Options will be loaded dynamically -->
-                        </select>
+                    <div class="setting-row">
+                        <div class="setting-info">
+                            <label for="defaultLoraRoot">Default LoRA Root</label>
+                        </div>
+                        <div class="setting-control select-control">
+                            <select id="defaultLoraRoot" onchange="settingsManager.saveSelectSetting('defaultLoraRoot', 'default_lora_root')">
+                                <option value="">No Default</option>
+                                <!-- Options will be loaded dynamically -->
+                            </select>
+                        </div>
                     </div>
                     <div class="input-help">
                         Set the default LoRA root directory for downloads, imports and moves
@@ -87,18 +126,6 @@
                 </div>
             </div>
         </div>
-        <div class="modal-actions">
-            <button class="primary-btn" onclick="settingsManager.saveSettings()">Save</button>
-        </div>
-        <!-- Add the new links section -->
-        <div class="settings-links">
-            <a href="https://github.com/willmiao/ComfyUI-Lora-Manager" target="_blank" class="settings-link" title="GitHub Repository">
-                <i class="fab fa-github"></i>
-            </a>
-            <a href="https://github.com/willmiao/ComfyUI-Lora-Manager/issues/new" target="_blank" class="settings-link" title="Report Issue">
-                <i class="fas fa-bug"></i>
-            </a>
-        </div>
     </div>
 </div>