/* CSS Reset 和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS 变量定义 */
:root {
    /* 基础颜色 */
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    
    /* 文字颜色 */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --text-white: #ffffff;
    
    /* 背景颜色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #343a40;
    --bg-light: #e9ecef;
    
    /* 边框和阴影 */
    --border-color: #dee2e6;
    --border-radius: 6px;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* 字体 */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-xxl: 24px;
}

/* 基础样式 */
html, body {
    height: 100%;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

/* 主容器布局 */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
    transition: all 0.3s ease;
}

/* 侧边栏样式 */
.sidebar {
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    padding: var(--spacing-md);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    width: 320px;
    min-width: 320px;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

/* 侧边栏隐藏状态 */
.sidebar.collapsed {
    width: 0;
    min-width: 0;
    padding: 0;
    border-right: none;
    overflow: hidden;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 区域样式 */
.section {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.subsection-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

/* 数据管理样式 */
.data-management {
    margin-bottom: var(--spacing-md);
}

.button-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.btn-icon {
    margin-right: 4px;
    font-size: 14px;
}

.data-info {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-xs);
    background: var(--bg-light);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.data-info .text-muted {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-md) 0;
}

/* 系统操作样式 */
.system-operations {
    /* 继承父级样式 */
}

/* 角色管理样式 */
.roles-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: var(--spacing-md);
}

.role-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s ease;
}

.role-card:hover {
    box-shadow: var(--box-shadow);
    transform: translateY(-1px);
}

.role-info {
    flex: 1;
}

.role-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

.role-model {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.role-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.role-actions .btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
}

/* 设置组样式 */
.setting-group {
    margin-bottom: var(--spacing-md);
}

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

.setting-group label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.setting-group label input[type="radio"] {
    margin-right: var(--spacing-xs);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    user-select: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-sm {
    padding: 4px var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-white);
}

.btn-primary:hover:not(:disabled) {
    background-color: #0056b3;
    box-shadow: var(--box-shadow);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-white);
}

.btn-secondary:hover:not(:disabled) {
    background-color: #545b62;
}

.btn-success {
    background-color: var(--success-color);
    color: var(--text-white);
}

.btn-success:hover:not(:disabled) {
    background-color: #1e7e34;
}

.btn-danger {
    background-color: var(--danger-color);
    color: var(--text-white);
}

.btn-danger:hover:not(:disabled) {
    background-color: #c82333;
}

.btn-warning {
    background-color: var(--warning-color);
    color: var(--text-primary);
}

.btn-warning:hover:not(:disabled) {
    background-color: #e0a800;
}

.btn-info {
    background-color: var(--info-color);
    color: var(--text-white);
}

.btn-info:hover:not(:disabled) {
    background-color: #138496;
}

/* 表单控件样式 */
.form-control {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: var(--font-size-base);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-primary);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.form-control:disabled {
    background-color: var(--bg-light);
    cursor: not-allowed;
}

/* 聊天区域样式 */
.chat-area {
    display: flex;
    flex-direction: column;
    flex: 1;
    height: 100vh;
    background: var(--bg-primary);
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
}

/* 头部左侧容器 */
.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* 用户信息显示 */
.user-info {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: var(--bg-light);
    border-radius: 4px;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.user-label {
    font-weight: 500;
}

.user-name {
    color: var(--primary-color);
    font-weight: 600;
}

/* 侧边栏切换按钮 */
.sidebar-toggle-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.sidebar-toggle-btn:hover {
    background: var(--bg-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.toggle-icon {
    font-size: 16px;
    font-weight: bold;
    line-height: 1;
    transition: transform 0.2s ease;
}

.sidebar-toggle-btn:hover .toggle-icon {
    transform: scale(1.1);
}

.chat-title {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--primary-color);
    cursor: pointer;
    user-select: none;
    margin: 0;
}

.chat-status {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

/* 消息容器样式 */
.messages-container {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background: transparent;
}

.messages-container::-webkit-scrollbar {
    width: 8px;
}

.messages-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.messages-container::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.5);
}

.welcome-message {
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-lg);
    padding: var(--spacing-xl);
}

/* 消息气泡样式 */
.message {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-md);
    animation: messageSlideIn 0.3s ease-out;
    position: relative;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 消息工具栏样式 - 常驻显示 */
.message-toolbar {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    padding: var(--spacing-xs);
    opacity: 1;
}

.message.user .message-toolbar {
    justify-content: flex-end;
}

.message.assistant .message-toolbar {
    justify-content: flex-start;
}

.toolbar-btn {
    background: rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 4px;
    padding: var(--spacing-xs);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    transition: all 0.2s ease;
    color: var(--text-muted);
}

.toolbar-btn:hover {
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-primary);
    transform: scale(1.1);
}

.toolbar-btn:active {
    transform: scale(0.95);
}

.toolbar-btn.copy-btn:hover {
    background: rgba(0, 123, 255, 0.1);
    color: var(--primary-color);
}

.toolbar-btn.edit-btn:hover {
    background: rgba(255, 193, 7, 0.1);
    color: var(--warning-color);
}

.toolbar-btn.delete-btn:hover {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

/* 编辑表单样式 */
.edit-form {
    margin: var(--spacing-sm) 0;
    padding: var(--spacing-sm);
    background: var(--bg-light);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.edit-textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    resize: vertical;
    min-height: 60px;
}

.edit-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.edit-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    justify-content: flex-end;
}

.message.user {
    align-items: flex-end;
}

.message.assistant {
    align-items: flex-start;
}

.message-bubble {
    max-width: 70%;
    padding: var(--spacing-md);
    border-radius: 18px;
    position: relative;
    word-wrap: break-word;
    box-shadow: var(--box-shadow);
}

.message.user .message-bubble {
    background: var(--primary-color);
    color: var(--text-white);
    border-bottom-right-radius: 6px;
}

.message.assistant .message-bubble {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 6px;
}

/* 角色颜色主题 */
.message.theme-blue.assistant .message-bubble {
    background: #e3f2fd;
    border-color: #2196f3;
    color: #0d47a1;
}

.message.theme-green.assistant .message-bubble {
    background: #e8f5e8;
    border-color: #4caf50;
    color: #2e7d32;
}

.message.theme-purple.assistant .message-bubble {
    background: #f3e5f5;
    border-color: #9c27b0;
    color: #6a1b9a;
}

.message.theme-orange.assistant .message-bubble {
    background: #fff3e0;
    border-color: #ff9800;
    color: #ef6c00;
}

.message.theme-pink.assistant .message-bubble {
    background: #fce4ec;
    border-color: #e91e63;
    color: #ad1457;
}

.message.theme-teal.assistant .message-bubble {
    background: #e0f2f1;
    border-color: #009688;
    color: #00695c;
}

.message-info {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.message-content {
    line-height: 1.6;
    white-space: pre-wrap;
}

/* Markdown内容样式 */
.markdown-content {
    font-family: var(--font-family);
    line-height: 1.6;
    white-space: normal; /* 覆盖pre-wrap，让Markdown正常渲染 */
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    margin: var(--spacing-md) 0 var(--spacing-sm) 0;
    font-weight: 600;
    line-height: 1.3;
}

.markdown-content h1 { font-size: 1.5em; }
.markdown-content h2 { font-size: 1.3em; }
.markdown-content h3 { font-size: 1.1em; }
.markdown-content h4 { font-size: 1em; }

.markdown-content p {
    margin: var(--spacing-sm) 0;
}

.markdown-content ul,
.markdown-content ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.markdown-content li {
    margin: var(--spacing-xs) 0;
}

.markdown-content blockquote {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm) var(--spacing-md);
    border-left: 4px solid var(--primary-color);
    background: rgba(0, 123, 255, 0.05);
    font-style: italic;
}

.markdown-content code {
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 4px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
}

.markdown-content pre {
    background: #f8f8f8;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    line-height: 1.4;
}

.markdown-content pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    font-size: inherit;
}

.markdown-content table {
    border-collapse: collapse;
    width: 100%;
    margin: var(--spacing-md) 0;
    font-size: 0.9em;
}

.markdown-content th,
.markdown-content td {
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    text-align: left;
}

.markdown-content th {
    background: var(--bg-light);
    font-weight: 600;
}

.markdown-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.markdown-content a:hover {
    text-decoration: underline;
}

.markdown-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: var(--spacing-lg) 0;
}

.markdown-content strong {
    font-weight: 600;
}

.markdown-content em {
    font-style: italic;
}

/* 针对不同角色主题的代码块样式调整 */
.message.theme-blue .markdown-content blockquote {
    border-left-color: #2196f3;
    background: rgba(33, 150, 243, 0.05);
}

.message.theme-green .markdown-content blockquote {
    border-left-color: #4caf50;
    background: rgba(76, 175, 80, 0.05);
}

.message.theme-purple .markdown-content blockquote {
    border-left-color: #9c27b0;
    background: rgba(156, 39, 176, 0.05);
}

.message.theme-orange .markdown-content blockquote {
    border-left-color: #ff9800;
    background: rgba(255, 152, 0, 0.05);
}

.message.theme-pink .markdown-content blockquote {
    border-left-color: #e91e63;
    background: rgba(233, 30, 99, 0.05);
}

.message.theme-teal .markdown-content blockquote {
    border-left-color: #009688;
    background: rgba(0, 150, 136, 0.05);
}

.message-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    opacity: 0.7;
}

.message-time {
    font-size: var(--font-size-sm);
    opacity: 0.7;
}

.message-model {
    font-size: var(--font-size-sm);
    opacity: 0.6;
    margin-left: var(--spacing-sm);
}

.message-token-info {
    font-size: var(--font-size-xs);
    opacity: 0.6;
    color: var(--text-muted);
    margin-left: auto;
    text-align: right;
    line-height: 1.2;
}

.message-token-info span {
    display: block;
    white-space: nowrap;
}

/* 输入区域样式 */
.input-area {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.input-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.message-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    resize: vertical;
    min-height: 80px;
    max-height: 200px;
    background: var(--bg-secondary);
}

.message-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.input-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.input-info {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    display: none;
}

.modal-overlay.active {
    display: block;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-hover);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-xxl);
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* 表单样式 */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

/* 复选框组样式 */
.form-check-group {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
}

.form-check-label {
    display: flex;
    align-items: center;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    margin-bottom: var(--spacing-xs);
}

.form-check-input {
    margin-right: var(--spacing-sm);
    cursor: pointer;
    transform: scale(1.1);
}

.form-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.4;
    margin-top: var(--spacing-xs);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

/* API操作按钮组样式 */
.api-actions-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.api-actions-group .btn {
    margin-bottom: var(--spacing-sm);
}

/* 对话设置操作按钮组样式 */
.setting-actions-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* 系统管理区域样式 */
.system-management {
    margin-top: var(--spacing-lg);
}

.system-management .section-title {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

/* 聊天记录管理按钮间距 */
.chat-management {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.chat-management .btn {
    margin-bottom: var(--spacing-sm);
}

.form-text {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

/* 加载指示器样式 */
.loading-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    z-index: 2000;
}

.loading-indicator.active {
    display: flex;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-light);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    font-weight: 500;
}

/* 管理员面板样式 */
.admin-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    max-width: 800px;
    height: 70vh;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-hover);
    z-index: 1500;
    display: flex;
    flex-direction: column;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.admin-close {
    background: none;
    border: none;
    font-size: var(--font-size-xxl);
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.admin-close:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.admin-content {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.log-container {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.4;
    height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    margin-bottom: var(--spacing-lg);
}

.admin-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* 12种背景主题 */
/* 默认背景 */
.app-container.bg1 .chat-area {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

/* 星空夜色 */
.app-container.bg2 .chat-area {
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
    position: relative;
}

.app-container.bg2 .chat-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #fff, transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 90px 40px, #fff, transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(255,255,255,0.6), transparent),
        radial-gradient(2px 2px at 160px 30px, #fff, transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    opacity: 0.6;
    pointer-events: none;
}

/* 森林绿意 */
.app-container.bg3 .chat-area {
    background: linear-gradient(135deg, #2d5016 0%, #3e6b1f 50%, #4a7c59 100%);
}

/* 海洋蓝调 */
.app-container.bg4 .chat-area {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #74b9ff 100%);
}

/* 粉色梦境 */
.app-container.bg5 .chat-area {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 50%, #fad0c4 100%);
}

/* 紫色神秘 */
.app-container.bg6 .chat-area {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #667eea 100%);
}

/* 橙色温暖 */
.app-container.bg7 .chat-area {
    background: linear-gradient(135deg, #ff8a00 0%, #e52e71 50%, #ff8a00 100%);
}

/* 灰色简约 */
.app-container.bg8 .chat-area {
    background: linear-gradient(135deg, #bdc3c7 0%, #2c3e50 50%, #bdc3c7 100%);
}

/* 彩虹渐变 */
.app-container.bg9 .chat-area {
    background: linear-gradient(135deg, #ff0000 0%, #ff8000 14%, #ffff00 28%, #80ff00 42%, #00ff00 57%, #00ff80 71%, #00ffff 85%, #0080ff 100%);
}

/* 黑夜模式 */
.app-container.bg10 .chat-area {
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
}

.app-container.bg10 .message.assistant .message-bubble {
    background: #2c2c54;
    color: #ffffff;
    border-color: #40407a;
}

/* 古典纸质 */
.app-container.bg11 .chat-area {
    background: 
        radial-gradient(circle at 25% 25%, rgba(139, 69, 19, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(160, 82, 45, 0.1) 0%, transparent 50%),
        linear-gradient(135deg, #f4f1e8 0%, #e8dcc6 100%);
    position: relative;
}

.app-container.bg11 .chat-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 24px, rgba(139, 69, 19, 0.1) 25px),
        repeating-linear-gradient(90deg, transparent, transparent 24px, rgba(139, 69, 19, 0.05) 25px);
    pointer-events: none;
}

/* 科技未来 */
.app-container.bg12 .chat-area {
    background: 
        linear-gradient(135deg, #0f3460 0%, #0f4c75 50%, #3282b8 100%),
        radial-gradient(circle at 20% 80%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 255, 255, 0.1) 0%, transparent 50%);
    background-blend-mode: overlay;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .app-container {
        position: relative;
    }

    .sidebar {
        position: absolute;
        top: 0;
        left: -320px;
        width: 320px !important;
        min-width: 320px !important;
        height: 100%;
        z-index: 100;
        transition: left 0.3s ease;
        box-shadow: var(--box-shadow-hover);
        padding: var(--spacing-md);
    }

    .sidebar.collapsed {
        width: 320px !important;
        min-width: 320px !important;
        padding: var(--spacing-md);
        border-right: 1px solid var(--border-color);
        overflow-y: auto;
    }

    .sidebar.active {
        left: 0;
    }

    .chat-area {
        flex: 1;
    }
    
    .modal-content {
        width: 95%;
        margin: var(--spacing-md);
    }
    
    .admin-panel {
        width: 95%;
        height: 80vh;
    }
    
    .message-bubble {
        max-width: 85%;
    }
}

@media (max-width: 480px) {
    .sidebar {
        width: 280px;
        left: -280px;
    }
    
    .input-controls {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
    
    .input-info {
        justify-content: space-between;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .admin-actions {
        flex-direction: column;
    }
}

/* 工具提示 */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 选择文本样式 */
::selection {
    background: rgba(0, 123, 255, 0.3);
    color: inherit;
}

/* 焦点样式 */
:focus {
    outline: none;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

.slide-in-up {
    animation: slideInUp 0.3s ease-out;
}

/* 打印样式 */
@media print {
    .sidebar,
    .input-area,
    .modal,
    .loading-indicator,
    .admin-panel {
        display: none !important;
    }
    
    .app-container {
        grid-template-columns: 1fr;
    }
    
    .chat-area {
        height: auto;
        background: white !important;
    }
    
    .message-bubble {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .toast-container {
        display: none !important;
    }
}

/* 提示消息样式 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 350px;
}

.toast {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--box-shadow-hover);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s ease;
    min-height: 60px;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success {
    border-left: 4px solid var(--success-color);
    background: #f0f9f0;
}

.toast.error {
    border-left: 4px solid var(--danger-color);
    background: #fdf2f2;
}

.toast.info {
    border-left: 4px solid var(--info-color);
    background: #f0f8ff;
}

.toast-icon {
    font-size: var(--font-size-xl);
    font-weight: bold;
}

.toast.success .toast-icon {
    color: var(--success-color);
}

.toast.error .toast-icon {
    color: var(--danger-color);
}

.toast.info .toast-icon {
    color: var(--info-color);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.4;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: var(--font-size-lg);
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.toast-close:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

/* 对话状态显示样式 */
.chat-status {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    animation: slideDown 0.3s ease-out;
}

.status-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.status-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
}

.current-status {
    display: flex;
    align-items: center;
}

.status-text {
    font-weight: 600;
    font-size: var(--font-size-base);
}

.rounds-display {
    display: flex;
    align-items: center;
}

.rounds-info {
    background: rgba(255,255,255,0.2);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 12px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: 1px solid rgba(255,255,255,0.1);
}

.chat-status .btn {
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
}

.chat-status .btn:hover {
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.5);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* API配置项样式 - 重新设计 */
.api-config-item {
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all 0.2s ease;
}

.api-config-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.api-config-item.active {
    border: 2px solid var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.15);
}

.config-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: inherit;
}

/* 配置头部 */
.config-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.config-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
}

.config-status-icon {
    font-size: 12px;
    line-height: 1;
}

.config-name {
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    margin: 0;
}

.config-status-badge {
    padding: 2px var(--spacing-xs);
    border-radius: 8px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    background: var(--bg-light);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.config-status-badge.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.config-stream-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.stream-icon {
    font-size: 14px;
}

/* 配置详情 */
.config-details {
    margin-bottom: var(--spacing-md);
}

.config-url {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    background: var(--bg-light);
    padding: 4px var(--spacing-xs);
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.config-specs {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    align-items: center;
    font-size: var(--font-size-sm);
}

.spec-item {
    display: flex;
    gap: 4px;
}

.spec-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.spec-value {
    color: var(--text-primary);
    font-weight: 600;
}

.spec-divider {
    color: var(--border-color);
    font-weight: 300;
}

/* 配置操作 */
.config-actions {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: flex-end;
}

.config-actions .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 6px 12px;
    font-size: var(--font-size-sm);
    border-radius: 6px;
    transition: all 0.2s ease;
    white-space: nowrap;
    min-width: 60px;
}

.config-actions .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.config-actions .btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .config-header {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .config-stream-indicator {
        align-self: flex-start;
    }

    .config-actions {
        flex-direction: column;
    }

    .config-actions .btn {
        justify-content: center;
    }

    .config-specs {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .spec-divider {
        display: none;
    }
}

/* 打字机光标动画效果 */
.typewriter-cursor {
    display: inline-block;
    background-color: var(--primary-color);
    width: 2px;
    height: 1em;
    margin-left: 2px;
    animation: typewriter-blink 1s infinite;
    vertical-align: middle;
}

@keyframes typewriter-blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}