/* 系统设置页面样式 */
:root {
    --primary-color: #4caf50;
    --secondary-color: #2196f3;
    --accent-color: #ff9800;
    --danger-color: #f44336;
    --warning-color: #ffb300;
    --light-color: #f5f5f5;
    --dark-color: #333;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

/* 设置容器 */
.settings-container {
    display: flex;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px var(--shadow-color);
    margin: 20px;
    overflow: hidden;
}

/* 侧边栏导航 */
.settings-sidebar {
    width: 240px;
    background-color: var(--light-color);
    border-right: 1px solid var(--border-color);
    padding: 20px 0;
}

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

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-left: 4px solid transparent;
}

.nav-item:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.nav-item.active {
    background-color: rgba(0, 0, 0, 0.05);
    border-left-color: var(--primary-color);
    font-weight: bold;
}

.settings-icon {
    margin-right: 10px;
    font-style: normal;
}

/* 内容区域 */
.settings-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    max-height: calc(100vh - 200px);
}

.settings-panel {
    display: none;
}

.settings-panel.active {
    display: block;
}

.settings-panel h2 {
    margin-top: 0;
    margin-bottom: 20px;
    color: var(--dark-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

/* 设置部分 */
.settings-section {
    margin-bottom: 30px;
    background-color: #fff;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 1px 3px var(--shadow-color);
}

.settings-section h3 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: var(--dark-color);
}

.setting-item {
    margin-bottom: 15px;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: var(--dark-color);
}

.setting-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.setting-input:focus {
    border-color: var(--secondary-color);
    outline: none;
}

.setting-description {
    margin-top: 5px;
    font-size: 0.9rem;
    color: #666;
}

.warning-text {
    color: var(--danger-color);
    font-weight: bold;
}

/* 开关样式 */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.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;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(30px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* 设置按钮 */
.setting-button {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    background-color: #f0f0f0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

.setting-button:hover {
    background-color: #e0e0e0;
}

.setting-button.primary {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.setting-button.primary:hover {
    background-color: #3d8b40;
}

.setting-button.danger {
    background-color: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

.setting-button.danger:hover {
    background-color: #d32f2f;
}

.setting-button.warning {
    background-color: var(--warning-color);
    color: white;
    border-color: var(--warning-color);
}

.setting-button.warning:hover {
    background-color: #f57c00;
}

.setting-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.setting-button .setting-icon {
    margin-right: 8px;
    font-style: normal;
}

/* 滑块 */
.setting-slider {
    width: 100%;
    height: 10px;
    border-radius: 5px;
    background: #ddd;
    outline: none;
    -webkit-appearance: none;
}

.setting-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: all 0.2s;
}

.setting-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.setting-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.setting-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
}

/* 主题选择 */
.theme-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-top: 10px;
}

.theme-option {
    cursor: pointer;
    border-radius: 6px;
    overflow: hidden;
    border: 2px solid transparent;
    transition: all 0.2s;
}

.theme-option:hover {
    transform: translateY(-2px);
}

.theme-option.active {
    border-color: var(--primary-color);
}

.theme-preview {
    height: 100px;
    border-radius: 4px 4px 0 0;
}

.default-theme {
    background: linear-gradient(to bottom, #4caf50, #2196f3);
}

.dark-theme {
    background: linear-gradient(to bottom, #333, #222);
}

.colorful-theme {
    background: linear-gradient(135deg, #f44336, #9c27b0, #3f51b5, #4caf50, #ffeb3b);
}

.pastel-theme {
    background: linear-gradient(to right, #ffb6c1, #add8e6, #98fb98);
}

.theme-name {
    text-align: center;
    padding: 8px;
    background-color: #f5f5f5;
    font-size: 0.9rem;
}

/* 文件上传区域 */
.upload-area {
    margin-top: 15px;
}

.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    padding: 30px;
    text-align: center;
    transition: all 0.2s;
    margin-top: 5px;
    cursor: pointer;
}

.drop-zone:hover {
    border-color: var(--primary-color);
    background-color: rgba(76, 175, 80, 0.05);
}

input[type="file"] {
    display: none;
}

/* 恢复选项 */
.restore-options {
    margin-top: 15px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.checkbox-group {
    margin-bottom: 8px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    font-weight: normal;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 8px;
}

/* 存储信息 */
.storage-info {
    margin-top: 10px;
}

.storage-bar {
    height: 20px;
    background-color: #eee;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 5px;
}

.storage-used {
    height: 100%;
    background-color: var(--primary-color);
    width: 0%;
    transition: width 0.5s;
}

.storage-text {
    font-size: 0.9rem;
    color: #666;
    text-align: right;
}

/* 麦克风测试 */
.microphone-test {
    margin-top: 15px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.volume-meter {
    height: 20px;
    background-color: #eee;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 5px;
}

.volume-bar {
    height: 100%;
    background: linear-gradient(to right, #4caf50, #ffeb3b, #f44336);
    width: 0%;
    transition: width 0.1s;
}

.volume-text {
    font-size: 0.9rem;
    color: #666;
    text-align: center;
}

/* 关于部分 */
.about-section {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.about-logo {
    margin-right: 20px;
}

.about-logo-img {
    width: 100px;
    height: 100px;
    border-radius: 10px;
}

.about-info h3 {
    margin-top: 0;
}

.feature-list {
    padding-left: 20px;
    line-height: 1.6;
}

/* 密码字段 */
.password-fields {
    margin-top: 15px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

/* 设置操作按钮 */
.settings-actions {
    display: flex;
    justify-content: flex-end;
    padding: 15px 20px;
    gap: 10px;
    border-top: 1px solid var(--border-color);
    background-color: #f9f9f9;
    margin: 0 20px 20px;
    border-radius: 0 0 10px 10px;
}

.action-button {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
}

.action-button.primary {
    background-color: var(--primary-color);
    color: white;
}

.action-button.primary:hover {
    background-color: #3d8b40;
}

.action-button.secondary {
    background-color: #f0f0f0;
    color: var(--dark-color);
    border: 1px solid var(--border-color);
}

.action-button.secondary:hover {
    background-color: #e0e0e0;
}

/* 确认对话框 */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.dialog {
    background-color: white;
    border-radius: 8px;
    width: 400px;
    max-width: 90%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.dialog-header {
    padding: 15px;
    background-color: #f5f5f5;
    border-bottom: 1px solid var(--border-color);
}

.dialog-header h3 {
    margin: 0;
    color: var(--dark-color);
}

.dialog-content {
    padding: 20px 15px;
}

.dialog-footer {
    padding: 15px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    border-top: 1px solid var(--border-color);
    background-color: #f5f5f5;
}

.dialog-button {
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
    border: none;
}

.dialog-button.primary {
    background-color: var(--primary-color);
    color: white;
}

.dialog-button.primary:hover {
    background-color: #3d8b40;
}

.dialog-button.secondary {
    background-color: #e0e0e0;
    color: var(--dark-color);
}

.dialog-button.secondary:hover {
    background-color: #d0d0d0;
}

/* 隐藏元素 */
.hidden {
    display: none !important;
}

/* 响应式样式 */
@media (max-width: 768px) {
    .settings-container {
        flex-direction: column;
    }
    
    .settings-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 10px 0;
    }
    
    .settings-nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-item {
        padding: 8px 15px;
        border-left: none;
        border-bottom: 2px solid transparent;
    }
    
    .nav-item.active {
        border-left-color: transparent;
        border-bottom-color: var(--primary-color);
    }
    
    .theme-options {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .settings-content {
        padding: 15px;
    }
    
    .settings-section {
        padding: 10px;
    }
    
    .theme-options {
        grid-template-columns: 1fr;
    }
    
    .nav-item {
        flex: 1 0 auto;
        text-align: center;
        justify-content: center;
    }
    
    .settings-icon {
        margin-right: 5px;
    }
    
    .about-section {
        flex-direction: column;
        text-align: center;
    }
    
    .about-logo {
        margin-right: 0;
        margin-bottom: 15px;
    }
}

/* 背景图片上传区域 */
.background-upload-area {
    margin-top: 15px;
    display: flex;
    flex-direction: column;
}

.background-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    padding: 20px;
    text-align: center;
    transition: all 0.2s;
    margin-top: 5px;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.7);
}

.background-drop-zone:hover {
    border-color: var(--primary-color);
    background-color: rgba(76, 175, 80, 0.05);
}

.background-drop-zone.active {
    border-color: var(--primary-color);
    background-color: rgba(76, 175, 80, 0.1);
}

.background-preview {
    margin-top: 15px;
    width: 100%;
    height: 150px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f5f5f5;
}

.background-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.no-image-text {
    color: #888;
    font-style: italic;
}

/* 隐藏文件输入框，使用自定义按钮替代 */
#customBackground {
    display: none;
}