/* Global Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: "Microsoft YaHei UI", "Segoe UI", sans-serif;
    background-color: #F5F7FA;
    color: #2C3E50;
    font-size: 14px;
    height: 100vh;
    overflow: hidden;
}

/* Layout */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.app-header {
    background-color: #FFFFFF;
    border-bottom: 1px solid #E0E0E0;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 50px;
}

.app-header h1 {
    font-size: 18px;
    color: #2196F3;
    margin: 0;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-link {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    background-color: #f5f5f5;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.admin-link:hover {
    background-color: #e3f2fd;
    color: #1976D2 !important;
    transform: translateY(-1px);
}

.language-select {
    padding: 4px 8px;
    border: 1px solid #CFD8DC;
    border-radius: 4px;
    font-size: 13px;
    background-color: #FFFFFF;
    cursor: pointer;
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Left Panel */
.left-panel {
    width: 320px;
    min-width: 300px;
    background-color: #F5F7FA;
    border-right: 1px solid #E0E0E0;
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    overflow-y: auto;
}

.panel-section {
    background-color: #FFFFFF;
    border: 1px solid #E0E0E0;
    border-radius: 6px;
    padding: 12px;
}

.panel-section h3 {
    font-size: 14px;
    color: #2196F3;
    margin-bottom: 10px;
    font-weight: 600;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.section-header h3 {
    margin-bottom: 0;
}

/* Right Panel */
.right-panel {
    flex: 1;
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    overflow: hidden;
    background-color: #F5F7FA;
}

/* Settings Area */
.settings-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: #FFFFFF;
    border: 1px solid #E0E0E0;
    border-radius: 8px;
    overflow: hidden;
}

.tabs {
    display: flex;
    background-color: #ECEFF1;
    border-bottom: 1px solid #E0E0E0;
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background: none;
    cursor: pointer;
    font-weight: 500;
    color: #546E7A;
    border-right: 1px solid #E0E0E0;
}

.tab-btn:hover {
    background-color: #CFD8DC;
}

.tab-btn.active {
    background-color: #FFFFFF;
    color: #2196F3;
    border-bottom: 2px solid #2196F3;
    margin-bottom: -1px;
}

.tab-content-area {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.settings-split {
    display: flex;
    gap: 20px;
}

.settings-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 10px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #546E7A;
    font-weight: 500;
}

input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid #CFD8DC;
    border-radius: 4px;
    font-size: 13px;
    background-color: #FFFFFF;
}

input:focus,
select:focus {
    border-color: #2196F3;
    outline: none;
}

/* Buttons */
button {
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.2s;
}

.primary-btn {
    background-color: #2196F3;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 16px;
    font-weight: 500;
}

.primary-btn:hover {
    background-color: #1976D2;
}

.primary-btn:disabled {
    background-color: #BDBDBD;
    cursor: not-allowed;
}

.secondary-btn {
    background-color: #ECEFF1;
    color: #546E7A;
    border: none;
    border-radius: 4px;
    padding: 6px 12px;
    font-size: 12px;
}

.secondary-btn:hover {
    background-color: #CFD8DC;
}

.large-btn {
    width: 100%;
    padding: 12px;
    font-size: 16px;
}

.icon-btn {
    background: none;
    border: none;
    font-size: 16px;
    padding: 4px;
}

.button-group {
    display: flex;
    gap: 8px;
}

/* File List */
.file-list-container {
    height: 200px;
    border: 1px solid #E0E0E0;
    border-radius: 4px;
    overflow-y: auto;
    background-color: #FFFFFF;
}

.file-list {
    list-style: none;
}

.file-list li {
    padding: 8px 10px;
    border-bottom: 1px solid #F5F5F5;
    font-size: 13px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-list li:hover {
    background-color: #F5F7FA;
}

.file-list li .remove-btn {
    color: #EF5350;
    cursor: pointer;
    margin-left: 10px;
}

/* Log Box */
.log-container {
    height: 200px;
    background-color: #FFFFFF;
    border: 1px solid #E0E0E0;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
}

.log-header {
    padding: 8px 15px;
    border-bottom: 1px solid #E0E0E0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.log-header h3 {
    font-size: 14px;
    color: #546E7A;
    margin: 0;
}

.log-box {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
    font-family: Consolas, Monaco, monospace;
    font-size: 12px;
    color: #333;
    white-space: pre-wrap;
}

.log-entry {
    margin-bottom: 2px;
}

.log-entry.error {
    color: #D32F2F;
}

.log-entry.info {
    color: #1976D2;
}

/* Utilities */
.hint {
    display: block;
    margin-top: 5px;
    color: #90A4AE;
    font-size: 12px;
}

.full-width-select {
    width: 100%;
}

/* Checkbox wrapper */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-wrapper input[type="checkbox"] {
    width: auto;
}

.checkbox-wrapper label {
    margin-bottom: 0;
}

/* API Keys / Env Editor */
.env-editor-container {
    padding: 20px;
}

.env-hint {
    color: #90A4AE;
    font-size: 14px;
    margin-bottom: 20px;
    padding: 10px;
    background: #F5F5F5;
    border-radius: 4px;
}

#env-inputs-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 600px;
}

#env-inputs-container .form-group {
    margin-bottom: 0;
}

/* Upload Sections */
.upload-section {
    margin-top: 20px;
    padding: 15px;
    background: #F5F5F5;
    border-radius: 4px;
}

.upload-section h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #333;
}

.upload-area {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.upload-hint {
    margin: 0;
    font-size: 12px;
    color: #666;
}

/* Results Section */
.results-section {
    max-height: 400px;
    display: flex;
    flex-direction: column;
}

.results-list-container {
    flex: 1;
    overflow-y: auto;
    min-height: 100px;
    max-height: 300px;
}

.results-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.results-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    border-bottom: 1px solid #E0E0E0;
    gap: 10px;
}

.results-list li:hover {
    background: #F5F5F5;
}

.result-info {
    flex: 1;
    min-width: 0;
    cursor: pointer;
}

.result-name {
    font-size: 13px;
    color: #333;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.result-time {
    font-size: 11px;
    color: #999;
}

.result-actions {
    display: flex;
    gap: 5px;
}

.result-btn {
    padding: 4px 8px;
    font-size: 12px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    background: #2196F3;
    color: white;
}

.result-btn:hover {
    background: #1976D2;
}

.empty-hint {
    text-align: center;
    color: #999;
    padding: 20px;
    font-size: 13px;
}

/* Results Section */
.results-section {
    margin-top: 15px;
}

.results-list-container {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid #E0E0E0;
    border-radius: 4px;
    background-color: #FAFAFA;
}

.results-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    border-bottom: 1px solid #E0E0E0;
    background-color: #FFFFFF;
    transition: background-color 0.2s;
}

.result-item:hover {
    background-color: #F5F5F5;
}

.result-item:last-child {
    border-bottom: none;
}

.result-info {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

.result-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.result-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
    color: #2C3E50;
}

.result-time {
    font-size: 11px;
    color: #999;
    flex-shrink: 0;
    margin-left: 8px;
}

.result-actions {
    display: flex;
    gap: 5px;
    flex-shrink: 0;
}

.result-btn {
    padding: 4px 10px;
    font-size: 12px;
    border: 1px solid #CFD8DC;
    border-radius: 3px;
    background-color: #FFFFFF;
    color: #2196F3;
    cursor: pointer;
    transition: all 0.2s;
}

.result-btn:hover {
    background-color: #2196F3;
    color: #FFFFFF;
    border-color: #2196F3;
}

.result-btn.delete-btn {
    color: #F44336;
    border-color: #F44336;
    padding: 4px 8px;
    font-size: 16px;
    line-height: 1;
}

.result-btn.delete-btn:hover {
    background-color: #F44336;
    color: #FFFFFF;
}

.empty-hint {
    padding: 20px;
    text-align: center;
    color: #999;
    font-size: 13px;
}

/* Scrollbar styling for results list */
.results-list-container::-webkit-scrollbar {
    width: 8px;
}

.results-list-container::-webkit-scrollbar-track {
    background: #F5F5F5;
}

.results-list-container::-webkit-scrollbar-thumb {
    background: #CFD8DC;
    border-radius: 4px;
}

.results-list-container::-webkit-scrollbar-thumb:hover {
    background: #B0BEC5;
}

/* Image Viewer Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 8px;
    max-width: 95%;
    max-height: 95%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.image-viewer-content {
    width: 90vw;
    height: 90vh;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid #E0E0E0;
}

.modal-header h2 {
    margin: 0;
    font-size: 18px;
    color: #2196F3;
}

.close-btn {
    background: none;
    border: none;
    font-size: 32px;
    color: #999;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 32px;
    height: 32px;
}

.close-btn:hover {
    color: #F44336;
}

.image-viewer-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.thumbnails-panel {
    width: 250px;
    border-right: 1px solid #E0E0E0;
    overflow-y: auto;
    background: #F5F5F5;
}

#thumbnails-container {
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.thumbnail-item {
    position: relative;
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    background: white;
    transition: all 0.2s;
}

.thumbnail-item:hover {
    border-color: #2196F3;
    box-shadow: 0 2px 8px rgba(33, 150, 243, 0.3);
}

.thumbnail-item.active {
    border-color: #2196F3;
    box-shadow: 0 2px 8px rgba(33, 150, 243, 0.5);
}

.thumbnail-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.thumbnail-item .thumbnail-name {
    padding: 8px;
    font-size: 12px;
    color: #333;
    background: white;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.thumbnail-item .thumbnail-icon {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(255, 255, 255, 0.9);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 16px;
}

.preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#preview-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    background: #2C3E50;
    position: relative;
}

#preview-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.preview-placeholder {
    color: #999;
    font-size: 16px;
    text-align: center;
}

.preview-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-top: 1px solid #E0E0E0;
    background: white;
}

#preview-filename {
    font-size: 14px;
    color: #333;
    font-weight: 500;
}

.preview-actions {
    display: flex;
    gap: 10px;
}

/* Scrollbar for thumbnails */
.thumbnails-panel::-webkit-scrollbar {
    width: 8px;
}

.thumbnails-panel::-webkit-scrollbar-track {
    background: #F5F5F5;
}

.thumbnails-panel::-webkit-scrollbar-thumb {
    background: #CFD8DC;
    border-radius: 4px;
}

.thumbnails-panel::-webkit-scrollbar-thumb:hover {
    background: #B0BEC5;
}

/* Preview container scrollbar */
#preview-container::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

#preview-container::-webkit-scrollbar-track {
    background: #1a252f;
}

#preview-container::-webkit-scrollbar-thumb {
    background: #455A64;
    border-radius: 5px;
}

#preview-container::-webkit-scrollbar-thumb:hover {
    background: #546E7A;
}


/* ========== 移动端基础组件 ========== */

/* 移动端设置按钮 - 打开设置面板 */
.mobile-menu-btn {
    display: none;
    background: #2196F3;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    border-radius: 6px;
    transition: background-color 0.2s;
    margin-left: auto;
}

.mobile-menu-btn:hover {
    background-color: #1976D2;
}

.mobile-menu-btn:active {
    background-color: #1565C0;
}

/* 移动端遮罩层 */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}


/* ========== 移动端媒体查询 (< 768px) ========== */
@media (max-width: 767px) {
    /* ----- 全局样式 ----- */
    body {
        overflow: auto;  /* 允许页面滚动 */
        height: auto;
    }
    
    .app-container {
        height: auto;
        min-height: 100vh;
    }
    
    /* ----- Header 适配 (3.1) ----- */
    .app-header {
        padding: 8px 12px;
        height: auto;
        min-height: 50px;
        flex-wrap: nowrap;
        position: sticky;
        top: 0;
        z-index: 100;
        background: #FFFFFF;
    }
    
    .app-header h1 {
        font-size: 16px;
        flex: 1;
        margin-right: 10px;
    }
    
    .header-controls {
        gap: 6px;
        flex-shrink: 0;
        align-items: center;
    }
    
    .header-controls .secondary-btn {
        padding: 6px 10px;
        font-size: 12px;
        min-height: 36px;
    }
    
    /* 移动端隐藏用户信息，简化界面 */
    #user-info {
        display: none !important;
    }
    
    #logout-btn {
        padding: 6px 8px;
        font-size: 11px;
    }
    
    .admin-link {
        padding: 6px 8px;
    }
    
    #admin-link-text {
        display: none;  /* 移动端只显示图标 */
    }
    
    .language-select {
        padding: 6px;
        font-size: 12px;
        max-width: 70px;
    }
    
    /* 移动端设置按钮显示在header右侧 */
    .mobile-menu-btn {
        display: flex !important;
        align-items: center;
        justify-content: center;
        margin-left: 8px;
    }
    
    /* ----- 主内容区垂直布局 (3.2) ----- */
    .main-content {
        flex-direction: column;
        height: auto;
        overflow: visible;
        min-height: calc(100vh - 50px);
    }
    
    /* ----- 左侧面板（文件操作）显示在主页面 ----- */
    .left-panel {
        position: relative;
        left: 0;
        width: 100%;
        min-width: 100%;
        padding: 10px;
        background: #F5F7FA;
        border-right: none;
        border-bottom: 1px solid #E0E0E0;
        overflow: visible;
        order: 1;
    }
    
    /* ----- 右侧面板（设置）做成抽屉式 (3.3) ----- */
    .right-panel {
        position: fixed;
        right: -100%;
        top: 50px;
        height: calc(100vh - 50px);
        width: 90%;
        max-width: 400px;
        z-index: 1000;
        transition: right 0.3s ease;
        background: #F5F7FA;
        box-shadow: -2px 0 10px rgba(0,0,0,0.2);
        overflow-y: auto;
        padding: 15px;
        order: 2;
    }
    
    .right-panel.open {
        right: 0;
    }
    
    /* ----- 面板区块 ----- */
    .panel-section {
        padding: 12px;
        margin-bottom: 10px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .section-header .button-group {
        width: 100%;
        flex-wrap: wrap;
    }
    
    /* ----- 按钮触摸优化 (3.5) ----- */
    .primary-btn, .secondary-btn {
        min-height: 44px;
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .large-btn {
        padding: 14px;
        font-size: 16px;
        width: 100%;
    }
    
    .button-group {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .button-group .secondary-btn {
        flex: 1;
        min-width: 80px;
        text-align: center;
    }
    
    /* ----- 输入框防缩放 (3.6) ----- */
    input[type="text"],
    input[type="number"],
    input[type="password"],
    select,
    textarea {
        font-size: 16px;  /* 防止iOS缩放 */
        min-height: 44px;
        width: 100%;
    }
    
    /* ----- 文件列表容器高度调整 (3.7) ----- */
    .file-list-container {
        height: 150px;
    }
    
    .file-list li {
        padding: 10px;
        font-size: 12px;
    }
    
    /* ----- 设置容器移动端优化 ----- */
    .settings-container {
        flex: none;
        max-height: none;
        overflow: visible;
    }
    
    /* ----- 标签页水平滚动 (3.8) ----- */
    .tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
        padding: 0;
        gap: 0;
    }
    
    .tab-btn {
        flex-shrink: 0;
        padding: 12px 16px;
        font-size: 13px;
        min-height: 44px;
        white-space: nowrap;
    }
    
    .tab-content-area {
        padding: 15px 10px;
        overflow: visible;
    }
    
    /* ----- 设置区域单列布局 (3.9) ----- */
    .settings-split {
        flex-direction: column;
        gap: 20px;
    }
    
    .settings-column {
        width: 100%;
    }
    
    /* ----- 表单组优化 ----- */
    .form-group {
        margin-bottom: 16px;
    }
    
    .form-group label {
        font-size: 14px;
        margin-bottom: 8px;
        display: block;
        font-weight: 500;
    }
    
    .checkbox-wrapper {
        min-height: 44px;
        padding: 10px 0;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    
    .checkbox-wrapper input[type="checkbox"] {
        width: 22px;
        height: 22px;
        flex-shrink: 0;
    }
    
    .checkbox-wrapper label {
        margin-bottom: 0;
        flex: 1;
    }
    
    /* ----- 工作流选择 ----- */
    .workflow-section select {
        min-height: 44px;
        font-size: 14px;
    }
    
    /* ----- 日志容器适配 (3.10) ----- */
    .log-container {
        height: auto;
        min-height: 120px;
        max-height: 200px;
    }
    
    .log-header {
        padding: 10px 12px;
    }
    
    .log-box {
        font-size: 12px;
        word-wrap: break-word;
        overflow-wrap: break-word;
        padding: 10px;
        max-height: 150px;
    }
    
    .log-entry {
        word-break: break-all;
    }
    
    /* ----- 结果列表容器高度调整 (3.11) ----- */
    .results-section {
        max-height: none;
    }
    
    .results-list-container {
        max-height: 200px;
    }
    
    .result-item {
        padding: 12px 10px;
    }
    
    .result-actions {
        flex-direction: column;
        gap: 4px;
    }
    
    .result-btn {
        min-height: 36px;
        padding: 8px 12px;
    }
    
    /* ----- 历史区域 ----- */
    .history-section .section-header {
        flex-direction: row;
        align-items: center;
    }
    
    .history-list-container {
        max-height: 120px;
    }
    
    /* ----- 配置导入导出 ----- */
    .config-io-section .button-group {
        flex-direction: column;
    }
    
    .config-io-section .secondary-btn {
        width: 100%;
    }
    
    /* ----- 上传区域优化 ----- */
    .upload-section {
        padding: 12px;
        margin-top: 15px;
    }
    
    .upload-section h4 {
        font-size: 14px;
        margin-bottom: 10px;
    }
    
    .upload-area {
        text-align: center;
    }
    
    /* ----- API密钥区域优化 ----- */
    .env-editor-container {
        padding: 10px;
    }
    
    #env-inputs-container {
        max-width: 100%;
    }
    
    .env-hint {
        font-size: 13px;
        margin-bottom: 15px;
    }
    
    /* ----- 图片查看器移动端样式 (3.12) ----- */
    .modal {
        padding: 0;
    }
    
    .modal-content {
        max-width: 100%;
        max-height: 100%;
        border-radius: 0;
    }
    
    .image-viewer-content {
        width: 100vw;
        height: 100vh;
    }
    
    .modal-header {
        padding: 10px 15px;
    }
    
    .modal-header h2 {
        font-size: 16px;
    }
    
    .close-btn {
        width: 44px;
        height: 44px;
        font-size: 28px;
    }
    
    .image-viewer-body {
        flex-direction: column;
    }
    
    /* 缩略图面板移至底部 */
    .thumbnails-panel {
        width: 100%;
        height: 100px;
        border-right: none;
        border-top: 1px solid #E0E0E0;
        order: 2;
    }
    
    #thumbnails-container {
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
        padding: 8px;
        gap: 8px;
    }
    
    .thumbnail-item {
        flex-shrink: 0;
        width: 80px;
    }
    
    .thumbnail-item img {
        height: 60px;
    }
    
    .thumbnail-item .thumbnail-name {
        padding: 4px;
        font-size: 10px;
    }
    
    .preview-panel {
        order: 1;
        height: calc(100vh - 160px);
    }
    
    .preview-info {
        padding: 10px 15px;
        flex-direction: column;
        gap: 8px;
    }
    
    #preview-filename {
        font-size: 12px;
        text-align: center;
    }
    
    /* ----- 用户登录弹窗 ----- */
    .user-login-box {
        width: 90%;
        max-width: 350px;
        padding: 24px;
    }
    
    .user-login-box h2 {
        font-size: 18px;
    }
    
    .user-login-box input {
        min-height: 44px;
        font-size: 16px;
    }
}


/* ========== 平板端媒体查询 (768px - 1024px) ========== */
@media (min-width: 768px) and (max-width: 1024px) {
    /* ----- 左侧面板宽度调整 (4.1) ----- */
    .left-panel {
        width: 280px;
        min-width: 250px;
    }
    
    /* ----- 设置区域布局调整 (4.2) ----- */
    .settings-split {
        flex-direction: column;
    }
    
    .settings-column {
        width: 100%;
    }
    
    .tabs {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    .tab-content-area {
        padding: 12px;
    }
    
    /* ----- 图片查看器尺寸调整 (4.3) ----- */
    .image-viewer-content {
        width: 95vw;
        height: 95vh;
    }
    
    .thumbnails-panel {
        width: 200px;
    }
    
    .thumbnail-item img {
        height: 120px;
    }
    
    .preview-info {
        padding: 12px 15px;
    }
    
    /* ----- 其他平板端优化 ----- */
    .app-header h1 {
        font-size: 17px;
    }
    
    .header-controls {
        gap: 8px;
    }
    
    .form-group label {
        font-size: 13px;
    }
    
    .results-list-container {
        max-height: 250px;
    }
}