/* 微信风格 CSS 变量定义 */
:root {
    /* 微信绿色 */
    --wechat-green: #09b83e;
    --wechat-green-hover: #07a033;
    --wechat-green-light: #95ec69;
    
    /* 背景色 */
    --bg-page: #ededed;
    --bg-chat: #f5f5f5;
    --bg-header: #ffffff;
    --bg-input: #f7f7f7;
    
    /* 消息气泡 */
    --bubble-self: #95ec69;
    --bubble-other: #ffffff;
    
    /* 文字颜色 */
    --text-primary: #000000;
    --text-secondary: #888888;
    --text-muted: #b2b2b2;
    --text-on-green: #ffffff;
    
    /* 边框 */
    --border-light: #e7e7e7;
    --border-medium: #d9d9d9;
    
    /* 阴影 */
    --shadow-light: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 2px 8px rgba(0, 0, 0, 0.1);
    
    /* 尺寸 */
    --header-height: 50px;
    --footer-height: auto;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    
    /* 字体 */
    --font-size-sm: 13px;
    --font-size-base: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
    height: 100vh;
}

/* 头部样式 - 微信风格 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    z-index: 1000;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.new-chat-btn,
.conversations-btn,
.settings-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: background-color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.new-chat-btn:hover,
.conversations-btn:hover,
.settings-btn:hover {
    background-color: var(--bg-page);
}

/* 主聊天区域 - 微信风格 */
.chat-container {
    margin-top: var(--header-height);
    margin-bottom: 0;
    padding: 12px 16px 12px 16px;
    height: calc(100vh - var(--header-height) - 50px);
    overflow-y: auto;
    background-color: var(--bg-chat);
    scroll-behavior: smooth;
    overflow-x: hidden;
}

.welcome-message {
    text-align: center;
    padding: 60px var(--spacing-lg);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* 消息气泡样式 - 微信风格 */
.message {
    display: flex;
    margin-bottom: 12px;
    animation: messageSlideIn 0.2s ease-out;
    align-items: flex-start;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    flex-direction: row-reverse;
    justify-content: flex-start;
}

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

.message .avatar {
    width: 36px;
    height: 36px;
    border-radius: 4px;
    background-color: #e6e6e6;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    user-select: none;
    flex-shrink: 0;
    align-self: flex-start;
    overflow: hidden;
}

.message .avatar .avatar-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.message-content-wrapper {
    display: flex;
    flex-direction: column;
    max-width: 65%;
}

.message.user .message-content-wrapper {
    margin-right: 8px;
}

.message.assistant .message-content-wrapper {
    margin-left: 8px;
}

.message-content {
    padding: 9px 13px;
    border-radius: 6px;
    word-wrap: break-word;
    word-break: break-word;
    position: relative;
    line-height: 1.6;
    font-size: 15px;
    width: 100%;
}

.message.user .message-content {
    background-color: var(--bubble-self);
    color: var(--text-primary);
    border-top-right-radius: 2px;
}

.message.assistant .message-content {
    background-color: var(--bubble-other);
    color: var(--text-primary);
    border-top-left-radius: 2px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.message-content p {
    margin-bottom: var(--spacing-sm);
}

.message-content p:last-child {
    margin-bottom: 0;
}

/* 代码块样式 */
.message-content pre {
    background-color: #282c34;
    color: #abb2bf;
    padding: 10px 12px;
    border-radius: 4px;
    overflow-x: auto;
    margin: 8px 0;
    font-family: 'Monaco', 'Menlo', 'Consolas', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
}

.message-content code {
    background-color: rgba(0, 0, 0, 0.05);
    color: #c7254e;
    padding: 2px 5px;
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', 'Consolas', 'Courier New', monospace;
    font-size: 0.9em;
}

.message-content pre code {
    background-color: transparent;
    color: inherit;
    padding: 0;
}

/* 输入区域 - 现代微信风格 */
.input-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #ffffff;
    border-top: 1px solid #e7e7e7;
    padding: 8px 12px 8px 12px;
    z-index: 1000;
    box-shadow: 0 -1px 4px rgba(0, 0, 0, 0.04);
}

.chat-form {
    height: 100%;
}

.input-container {
    display: flex;
    align-items: flex-end;
    gap: 10px;
}

.message-input {
    flex: 1;
    min-height: 40px;
    max-height: 120px;
    padding: 9px 14px;
    border: 1px solid #e7e7e7;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    resize: none;
    outline: none;
    transition: all 0.2s ease;
    background-color: #f7f7f7;
    line-height: 1.5;
}

.message-input:focus {
    background-color: #ffffff;
    border-color: #d9d9d9;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.message-input::placeholder {
    color: #b3b3b3;
}

.send-btn {
    background-color: var(--wechat-green);
    color: white;
    border: none;
    border-radius: 6px;
    min-width: 60px;
    height: 40px;
    padding: 0 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
    font-size: 15px;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(7, 193, 96, 0.2);
}

.send-btn:hover {
    background-color: var(--wechat-green-hover);
    box-shadow: 0 3px 8px rgba(7, 193, 96, 0.3);
    transform: translateY(-1px);
}

.send-btn:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 1px 2px rgba(7, 193, 96, 0.2);
}

.send-btn:disabled {
    background-color: #b3b3b3;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.send-btn svg {
    display: none;
}

/* 模态框样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--spacing-lg);
}

.modal-overlay.show {
    display: flex;
}

.modal-content {
    background-color: #ffffff;
    border-radius: 12px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    animation: modalSlideIn 0.25s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

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

.modal-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--text-primary);
}

.modal-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.import-btn {
    background-color: var(--wechat-green);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 6px 12px;
    font-size: var(--font-size-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: background-color 0.2s ease;
}

.import-btn:hover {
    background-color: var(--wechat-green-hover);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* 设置表单样式 */
.settings-form {
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s ease;
    background-color: #ffffff;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--wechat-green);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
    line-height: 1.5;
}

.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

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

.model-input-container input {
    flex: 1;
}

.add-model-btn {
    background-color: var(--wechat-green);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 16px;
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: background-color 0.2s ease;
    white-space: nowrap;
}

.add-model-btn:hover {
    background-color: var(--wechat-green-hover);
}

.model-list {
    max-height: 150px;
    overflow-y: auto;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: #ffffff;
}

.model-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light);
    font-size: var(--font-size-sm);
}

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

.model-item-name {
    color: var(--text-primary);
}

.delete-model-btn {
    background: none;
    border: none;
    color: #fa5151;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease;
}

.delete-model-btn:hover {
    background-color: #fff0f0;
}

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

.save-btn,
.cancel-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.save-btn {
    background-color: var(--wechat-green);
    color: white;
}

.save-btn:hover {
    background-color: var(--wechat-green-hover);
}

.cancel-btn {
    background-color: var(--bg-page);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.cancel-btn:hover {
    background-color: var(--border-light);
}

/* 加载提示样式 */
.typing-indicator {
    display: none !important;
}

.typing-dots {
    display: flex;
    gap: 4px;
}

.typing-dots span {
    width: 6px;
    height: 6px;
    background-color: var(--text-secondary);
    border-radius: 50%;
    animation: typingDot 1.4s infinite ease-in-out;
}

.typing-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typingDot {
    0%, 80%, 100% {
        transform: scale(0.7);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* 对话列表样式 */
.conversations-list {
    max-height: 400px;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.conversation-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: background-color 0.2s ease;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
}

.conversation-item:hover {
    background-color: var(--bg-page);
}

.conversation-item.active {
    background-color: var(--wechat-green);
    color: white;
}

.conversation-info {
    flex: 1;
    min-width: 0;
}

.conversation-title {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: var(--font-size-base);
}

.conversation-preview {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conversation-item.active .conversation-preview {
    color: rgba(255, 255, 255, 0.8);
}

.conversation-actions {
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.conversation-item:hover .conversation-actions {
    opacity: 1;
}

.export-conversation-btn,
.conversation-settings-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.export-conversation-btn:hover {
    background-color: var(--wechat-green);
    color: white;
}

.conversation-settings-btn:hover {
    background-color: var(--bg-page);
    color: var(--text-primary);
}

.delete-conversation-btn {
    background: none;
    border: none;
    color: #fa5151;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease;
}

.delete-conversation-btn:hover {
    background-color: #fff0f0;
}

/* 思考过程样式 - 微信风格 */
.thinking-process {
    background-color: #f5f5f5;
    border-radius: 4px;
    margin: 0 0 6px 0;
    font-size: 12px;
    color: #888;
    overflow: hidden;
    border: none;
    width: 100%;
}

.thinking-process.show {
    animation: thinkingSlideIn 0.2s ease-out;
}

@keyframes thinkingSlideIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.thinking-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    background-color: #ebebeb;
    border-bottom: 1px solid #e0e0e0;
    font-weight: normal;
}

.thinking-title {
    color: #888;
    font-size: 11px;
}

.thinking-toggle-btn {
    background: transparent;
    color: #576b95;
    border: none;
    border-radius: 3px;
    padding: 2px 6px;
    font-size: 11px;
    cursor: pointer;
    transition: opacity 0.15s ease;
}

.thinking-toggle-btn:hover {
    opacity: 0.7;
}

.thinking-content-wrapper {
    padding: 8px 10px;
    font-style: normal;
    background-color: #fafafa;
}

.thinking-content {
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-size: 11px;
    color: #999;
}

.thinking-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background-color: var(--text-secondary);
    animation: thinkingBlink 1s infinite;
}

@keyframes thinkingBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* 消息操作按钮样式 - 移动端优化 */
.message-actions-container {
    display: flex;
    justify-content: flex-start;
    padding: 0 0 8px 42px;
    margin-bottom: 4px;
}

.regenerate-btn {
    background-color: transparent;
    color: #576b95;
    border: none;
    border-radius: 4px;
    padding: 4px 0;
    font-size: 13px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.15s ease;
}

.regenerate-btn:hover {
    color: var(--wechat-green);
}

.regenerate-btn:active {
    opacity: 0.6;
}

.regenerate-btn svg {
    flex-shrink: 0;
}

/* HTML预览样式 */
.html-preview-container {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin: var(--spacing-sm) 0;
    overflow: hidden;
    background-color: #ffffff;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background-color: var(--bg-page);
    border-bottom: 1px solid var(--border-light);
}

.preview-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.toggle-code-btn {
    background-color: var(--wechat-green);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 4px 10px;
    font-size: 12px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.toggle-code-btn:hover {
    background-color: var(--wechat-green-hover);
}

.html-preview-content {
    background-color: #ffffff;
}

.preview-iframe {
    width: 100%;
    height: 300px;
    border: none;
    background-color: white;
}

.html-code {
    border-top: 1px solid var(--border-light);
    background-color: #ffffff;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background-color: var(--bg-page);
    border-bottom: 1px solid var(--border-light);
}

.code-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.code-block {
    margin: 0;
    border-radius: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .message-content {
        font-size: 14px;
        padding: 8px 12px;
    }
    
    .chat-container {
        padding: 10px 12px;
    }
    
    .header-title {
        font-size: 16px;
    }
    
    /* 移动设备上始终显示对话操作按钮 */
    .conversation-actions {
        opacity: 1;
    }
    
    /* 移动端输入区域优化 */
    .input-footer {
        padding: 6px 10px 6px 10px;
    }
    
    .input-container {
        gap: 8px;
    }
    
    .message-input {
        font-size: 16px;
        min-height: 38px;
        padding: 8px 12px;
        border-radius: 8px;
    }
    
    .send-btn {
        min-width: 56px;
        height: 38px;
        font-size: 14px;
        padding: 0 12px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .chat-container {
        padding: 12px 20px;
    }
}

@media (min-width: 1025px) {
    .chat-container {
        max-width: 900px;
        margin-left: auto;
        margin-right: auto;
        padding: 16px 24px;
    }
    
    .input-footer {
        max-width: 900px;
        left: 50%;
        transform: translateX(-50%);
        padding: 10px 16px;
    }
    
    .input-container {
        gap: 12px;
    }
    
    .message-input {
        border-radius: 10px;
        padding: 10px 16px;
        font-size: 15px;
    }
    
    .send-btn {
        height: 42px;
        min-width: 68px;
        font-size: 15px;
        border-radius: 8px;
    }
}

/* 滚动条样式 - 微信风格 */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}

/* 选择文本样式 */
::selection {
    background-color: var(--wechat-green-light);
    color: var(--text-primary);
}

/* 禁用状态 */
.disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* 访问密钥验证模态框 */
#access-key-modal {
    backdrop-filter: blur(5px);
}

#access-key-modal.show {
    display: flex;
}

#access-key-modal.modal-overlay {
    background-color: rgba(0, 0, 0, 0.7);
}

.access-key-modal-content {
    max-width: 400px;
    text-align: center;
}

.access-key-modal-content .modal-header {
    border-bottom: none;
    padding-bottom: 0;
    justify-content: center;
}

.access-key-modal-content .modal-header h2 {
    font-size: 24px;
}

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

.access-key-modal-content input[type="password"] {
    text-align: center;
    font-size: 16px;
    letter-spacing: 2px;
}

.access-key-modal-content input[type="password"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(7, 193, 96, 0.1);
}

/* ============================================
   角色选择器样式
   ============================================ */

.role-selector {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 12px;
    max-height: 400px;
    overflow-y: auto;
    padding: 4px;
}

.role-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px;
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.role-card:hover {
    border-color: var(--primary-color);
    background: #f0fdf4;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.1);
}

.role-card.active {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.15);
}

.role-icon {
    font-size: 36px;
    margin-bottom: 8px;
    line-height: 1;
}

.role-info {
    width: 100%;
}

.role-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}

.custom-badge {
    display: inline-block;
    padding: 2px 6px;
    background: #3b82f6;
    color: white;
    font-size: 10px;
    border-radius: 4px;
    font-weight: 500;
}

.role-description {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
    margin-top: 4px;
}

/* 管理角色按钮 */
.manage-roles-btn {
    margin-top: 12px;
    padding: 10px 16px;
    background: white;
    border: 1px dashed #d1d5db;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    justify-content: center;
}

.manage-roles-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #f0fdf4;
}

.manage-roles-btn svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   自定义角色管理样式
   ============================================ */

.custom-roles-list {
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 16px;
}

.custom-role-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    margin-bottom: 12px;
    transition: all 0.2s ease;
}

.custom-role-item:hover {
    border-color: #d1d5db;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.role-item-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.role-item-info {
    flex: 1;
    min-width: 0;
}

.role-item-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
    margin-bottom: 4px;
}

.role-item-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.role-item-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.role-edit-btn,
.role-delete-btn {
    padding: 8px;
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.role-edit-btn {
    color: #3b82f6;
}

.role-edit-btn:hover {
    background: #eff6ff;
}

.role-delete-btn {
    color: #ef4444;
}

.role-delete-btn:hover {
    background: #fef2f2;
}

/* 角色操作按钮容器 */
.role-actions-buttons {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.add-role-btn,
.import-role-btn {
    flex: 1;
    padding: 12px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.import-role-btn {
    background: #6c757d;
}

.add-role-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.2);
}

.import-role-btn:hover {
    background: #5a6268;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.2);
}

.add-role-btn svg,
.import-role-btn svg {
    width: 16px;
    height: 16px;
}

/* 角色导出按钮 */
.role-export-btn {
    background: transparent;
    color: #6c757d;
    border: none;
    padding: 6px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.role-export-btn:hover {
    background: #e3f2fd;
    color: #2196f3;
}

/* 头像编辑相关样式 */
.avatar-input-group {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.avatar-preview {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    background-color: #f5f5f5;
    border: 2px dashed #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.avatar-preview .avatar-placeholder {
    font-size: 32px;
    color: #ccc;
}

.avatar-preview .avatar-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-preview .avatar-emoji {
    font-size: 48px;
}

.avatar-options {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.avatar-options input[type="text"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s ease;
}

.avatar-options input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

.upload-avatar-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    background: #f8f9fa;
    color: #495057;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.upload-avatar-btn:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}

.upload-avatar-btn svg {
    width: 16px;
    height: 16px;
}

.clear-avatar-btn {
    padding: 8px 16px;
    background: #fff;
    color: #dc3545;
    border: 1px solid #dc3545;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.clear-avatar-btn:hover {
    background: #dc3545;
    color: white;
}

/* ============================================
   响应式设计优化
   ============================================ */

@media (max-width: 768px) {
    .role-selector {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 10px;
    }
    
    .role-card {
        padding: 12px;
    }
    
    .role-icon {
        font-size: 28px;
    }
    
    .role-name {
        font-size: 13px;
    }
    
    .role-description {
        font-size: 11px;
    }
    
    .custom-role-item {
        padding: 12px;
    }
    
    .role-item-icon {
        font-size: 28px;
    }
}

/* ============================================
   推荐回复样式
   ============================================ */

.suggested-replies-container {
    margin: 12px 0 12px 48px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 1px solid #bbf7d0;
    border-radius: 12px;
    animation: slideInUp 0.3s ease-out;
}

.suggested-replies-container.loading {
    background: #f9fafb;
    border-color: #e5e7eb;
}

.suggested-replies-label {
    font-size: 13px;
    font-weight: 600;
    color: #059669;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.suggested-replies-container.loading .suggested-replies-label {
    color: #6b7280;
}

.suggested-replies-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.suggested-reply-btn {
    padding: 8px 16px;
    background: white;
    border: 1.5px solid #10b981;
    border-radius: 20px;
    color: #059669;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    font-weight: 500;
    box-shadow: 0 1px 3px rgba(16, 185, 129, 0.1);
}

.suggested-reply-btn:hover {
    background: #10b981;
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.2);
}

.suggested-reply-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(16, 185, 129, 0.2);
}

/* 加载动画 */
.suggested-replies-loading {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 8px 0;
}

.loading-dot {
    width: 8px;
    height: 8px;
    background: #9ca3af;
    border-radius: 50%;
    animation: loadingDot 1.4s ease-in-out infinite;
}

.loading-dot:nth-child(1) {
    animation-delay: 0s;
}

.loading-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.loading-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes loadingDot {
    0%, 80%, 100% {
        opacity: 0.3;
        transform: scale(0.8);
    }
    40% {
        opacity: 1;
        transform: scale(1.2);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 移动端优化 */
@media (max-width: 768px) {
    .suggested-replies-container {
        margin-left: 36px;
        padding: 10px 12px;
    }
    
    .suggested-reply-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .suggested-replies-label {
        font-size: 12px;
    }
}