/* 全局样式重置和变量定义 */
:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #0f0f10;
    --sidebar-bg: #1a1a1e;
    --chat-bg: #141415;
    --message-user-bg: #2a2a2e;
    --message-ai-bg: transparent;
    --input-bg: #1e1e22;
    --border-color: #2a2a2e;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --danger-color: #ef4444;
    --danger-hover: #dc2626;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --sidebar-width: 280px;
    --header-height: 60px;
    --input-area-height: 120px;
}

/* 亮色主题变量 */
[data-theme="light"] {
    --bg-color: #ffffff;
    --sidebar-bg: #f9fafb;
    --chat-bg: #ffffff;
    --message-user-bg: #f3f4f6;
    --message-ai-bg: transparent;
    --input-bg: #ffffff;
    --border-color: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    height: 100vh;
    overflow: hidden;
}

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

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

::-webkit-scrollbar-thumb {
    background: #3a3a3e;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #4a4a4e;
}

/* 亮色主题滚动条 */
[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: #c1c1c5;
}

[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
    background: #a1a1a5;
}

/* 亮色主题模态框背景 */
[data-theme="light"] .modal-overlay {
    background-color: rgba(0, 0, 0, 0.5);
}

/* 亮色主题Toast阴影 */
[data-theme="light"] .toast {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 亮色主题图片阴影 */
[data-theme="light"] .message-body img {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 亮色主题表格行悬停 */
[data-theme="light"] .message-body tr:hover td {
    background-color: rgba(0, 0, 0, 0.03);
}

/* 亮色主题代码背景 */
[data-theme="light"] .message-body code {
    background-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .message-body pre {
    background-color: #f8f8f8;
}

/* 亮色主题禁用按钮 */
[data-theme="light"] .btn-send:disabled {
    background: #d4d4d8;
}

/* 亮色主题历史对话时间 */
[data-theme="light"] .history-item-time {
    color: #52525b;
}

/* 侧边栏样式 */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, width 0.3s ease;
    z-index: 100;
}

.sidebar.collapsed {
    transform: translateX(-100%);
    width: 0;
    overflow: hidden;
}

.sidebar-header {
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.btn-close-sidebar {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

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

.btn-new-chat {
    background: var(--primary-color);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.btn-new-chat:hover {
    background: var(--primary-hover);
}

.history-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.history-item {
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-bottom: 4px;
    position: relative;
}

.history-item:hover {
    background-color: var(--border-color);
}

.history-item.active {
    background-color: var(--primary-color);
}

.history-item.active .history-item-title,
.history-item.active .history-item-time {
    color: white;
}

.history-item-title {
    font-size: 14px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: 24px;
}

.history-item-time {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.history-item-delete {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.2s, color 0.2s;
}

.history-item:hover .history-item-delete {
    opacity: 1;
}

.history-item-delete:hover {
    color: var(--danger-color);
}

/* 多选模式样式 */
.history-item.selected {
    background-color: rgba(99, 102, 241, 0.15);
    border: 1px solid var(--primary-color);
}

.history-item-checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    margin-right: 10px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.history-item-checkbox.checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.history-item-checkbox.checked::after {
    content: "✓";
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.history-item {
    display: flex;
    align-items: center;
}

.history-item-content {
    flex: 1;
    min-width: 0;
}

/* 侧边栏头部按钮组 */
.sidebar-header-actions {
    display: flex;
    gap: 4px;
    align-items: center;
}

.btn-select-mode,
.btn-clear-all {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    transition: all 0.2s;
}

.btn-select-mode:hover,
.btn-clear-all:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.btn-select-mode.active {
    background-color: var(--primary-color);
    color: white;
}

/* 多选操作栏 */
.select-actions {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.select-actions button {
    flex: 1;
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-select-all {
    background-color: var(--border-color);
    color: var(--text-primary);
}

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

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

.btn-delete-selected:hover {
    opacity: 0.9;
}

.btn-delete-selected:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-cancel-select {
    background-color: var(--border-color);
    color: var(--text-primary);
}

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

/* 工作流管理按钮 */
.sidebar-nav {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
}

.btn-workflow-manager {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-workflow-manager:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.btn-workflow-manager svg {
    flex-shrink: 0;
}

/* 工作流管理界面 */
.workflow-manager {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.workflow-manager-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.workflow-manager-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.btn-close-workflow-manager {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.2s;
}

.btn-close-workflow-manager:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.workflow-manager-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.workflow-section {
    margin-bottom: 24px;
}

.workflow-section h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

/* 工作流步骤配置 */
.workflow-steps-config {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.workflow-step-config {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.step-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
}

.step-name {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

/* 开关样式 */
.step-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

.step-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    border-radius: 24px;
    transition: all 0.3s;
}

.toggle-slider:before {
    content: "";
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: all 0.3s;
}

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

.step-toggle input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

.step-toggle input:disabled + .toggle-slider {
    opacity: 0.5;
    cursor: not-allowed;
}

.step-details {
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.config-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.config-row label {
    font-size: 13px;
    color: var(--text-secondary);
    min-width: 80px;
}

.config-row select,
.config-row input {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
}

.config-row select:focus,
.config-row input:focus {
    border-color: var(--primary-color);
}

/* 提示词配置 */
.prompt-configs {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.prompt-config {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.prompt-config label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.prompt-config textarea {
    padding: 10px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    resize: vertical;
    min-height: 80px;
    outline: none;
    transition: border-color 0.2s;
}

.prompt-config textarea:focus {
    border-color: var(--primary-color);
}

/* 操作按钮 */
.workflow-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.btn-save-workflow,
.btn-reset-workflow {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-save-workflow:hover {
    opacity: 0.9;
}

.btn-reset-workflow {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-reset-workflow:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--border-color);
}

.btn-settings {
    width: 100%;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    transition: background-color 0.2s;
}

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

/* 主内容区域 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* 顶部导航栏 */
.header {
    height: var(--header-height);
    background-color: var(--sidebar-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
}

.btn-toggle-sidebar {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

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

.model-selector {
    flex: 1;
}

.model-selector select {
    width: 100%;
    max-width: 300px;
    padding: 8px 12px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

.model-selector select:focus {
    border-color: var(--primary-color);
}

.model-selector select option {
    background-color: var(--input-bg);
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* 更多菜单容器 */
.more-menu-container {
    position: relative;
    display: none;
}

/* PC 端按钮（移动端隐藏） */
.desktop-only-btn {
    display: flex;
}

/* PC 端元素（移动端隐藏） */
.desktop-only {
    display: block;
}

/* Electron 专属元素（网页端和移动端隐藏） */
.electron-only {
    display: none;
}

.btn-more-menu {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-more-menu:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

/* 二级菜单下拉 */
.more-menu-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 8px;
    min-width: 200px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
}

.more-menu-dropdown.active {
    display: block;
}

.more-menu-dropdown .menu-item {
    padding: 4px 0;
}

.more-menu-dropdown .menu-item:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.more-menu-dropdown button {
    width: 100%;
    justify-content: flex-start;
    border: none;
    background: none;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background 0.2s;
}

.more-menu-dropdown button:hover {
    background: var(--bg-tertiary);
}

.more-menu-dropdown button.active {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.more-menu-dropdown .reasoning-strength {
    margin-left: 10px;
    margin-top: 6px;
    margin-bottom: 6px;
}

/* 推理强度行 */
.reasoning-strength-row {
    display: flex;
    align-items: center;
    padding: 6px 12px 10px;
    gap: 8px;
}

.reasoning-strength-label {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.reasoning-strength-row .reasoning-strength {
    margin: 0;
}

.btn-memory {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    transition: background-color 0.2s;
}

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

.btn-search-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    transition: background-color 0.2s;
}

.btn-search-toggle:hover {
    background-color: var(--border-color);
}

.btn-search-toggle.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* 主题切换按钮 */
.btn-theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    transition: background-color 0.2s;
}

.btn-theme-toggle:hover {
    background-color: var(--border-color);
}

.btn-theme-toggle .icon-sun,
.btn-theme-toggle .icon-moon {
    display: none;
}

[data-theme="dark"] .btn-theme-toggle .icon-sun {
    display: inline;
}

[data-theme="light"] .btn-theme-toggle .icon-moon {
    display: inline;
}

[data-theme="dark"] .btn-theme-toggle .icon-moon {
    display: none;
}

[data-theme="light"] .btn-theme-toggle .icon-sun {
    display: none;
}

/* 工作流状态栏 */
.workflow-status {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px 16px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    max-width: 400px;
}

.workflow-step {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-primary);
}

.step-icon {
    font-size: 16px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.step-text {
    flex: 1;
}

.step-model {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 2px 8px;
    background: var(--bg-tertiary, rgba(99, 102, 241, 0.1));
    border-radius: 4px;
    white-space: nowrap;
}

.workflow-progress-bar {
    height: 3px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--primary-color);
    border-radius: 2px;
    transition: width 0.3s ease;
    width: 0%;
}

/* 对话区域 */
.chat-container {
    flex: 1;
    overflow-y: auto;
    background-color: var(--chat-bg);
}

.chat-messages {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

/* 欢迎消息 */
.welcome-message {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
}

.welcome-message h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary-color), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-message p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.tag {
    padding: 8px 16px;
    background-color: var(--border-color);
    border-radius: 24px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: background-color 0.2s, color 0.2s;
}

.tag:hover {
    background-color: var(--primary-color);
    color: #ffffff;
}

/* 消息样式 - DeepSeek风格 */
.message {
    display: flex;
    gap: 16px;
    padding: 24px 0;
    animation: messageFadeIn 0.3s ease;
}

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

/* 消息容器 */
.message {
    display: flex;
    gap: 16px;
    padding: 24px 0;
    animation: messageFadeIn 0.3s ease;
}

/* 用户消息靠右，头像在右边 */
.message.user {
    flex-direction: row-reverse;
}

/* AI消息靠左，头像在左边 */
.message.assistant {
    flex-direction: row;
}

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

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    overflow: hidden;
    color: #ffffff;
}

.message.user .message-avatar {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.message.assistant .message-avatar {
    background: linear-gradient(135deg, var(--primary-color), #a855f7);
}

.message-content {
    flex: 1;
    min-width: 0;
}

/* 用户消息内容靠右对齐 */
.message.user .message-content {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

/* AI消息内容靠左对齐 */
.message.assistant .message-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.message-header {
    display: flex;
    align-items: center;
    margin-bottom: 0;
    gap: 8px;
}

/* 用户消息隐藏空的header */
.message.user .message-header {
    display: none;
}

/* AI消息角色名靠左 */
.message.assistant .message-header {
    flex-direction: row;
    margin-bottom: 8px;
}

.message-role {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.message-time {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 隐藏用户消息的时间 */
.message.user .message-time {
    display: none;
}

/* 消息底部容器：包含时间和操作按钮 */
.message-footer {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: flex-start;
    margin-top: 8px;
    opacity: 0;
    transition: opacity 0.2s;
}

.message:hover .message-footer {
    opacity: 1;
}

/* 用户消息底部按钮在气泡右下角外面 */
.message.user .message-footer {
    position: absolute;
    right: 0;
    bottom: -28px;
    margin-top: 0;
}

.message-body {
    position: relative;
    padding: 0;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-primary);
    word-wrap: break-word;
    overflow-wrap: break-word;
    text-align: left;
}

/* 用户消息气泡样式 - DeepSeek风格 */
.message.user .message-body {
    background-color: var(--message-user-bg);
    color: var(--text-primary);
    border-radius: 18px 18px 4px 18px;
    padding: 6px 14px;
    max-width: 70%;
    font-size: 15px;
    position: relative;
    display: flex;
    align-items: center;
}

/* 用户消息中的段落移除margin，确保垂直居中 */
.message.user .message-body p {
    margin-bottom: 0;
}

/* AI消息样式 - 无背景，全宽 */
.message.assistant .message-body {
    background-color: transparent;
    max-width: 100%;
    width: 100%;
}

/* Markdown 内容样式 */
.message-body p {
    margin-bottom: 16px;
    line-height: 1.7;
}

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

.message-body code {
    background-color: rgba(0, 0, 0, 0.15);
    padding: 3px 6px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    color: #e06c75;
}

[data-theme="light"] .message-body code {
    background-color: rgba(0, 0, 0, 0.06);
    color: #c41d7f;
}

.message-body pre {
    background-color: #1e1e2e;
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 16px 0;
}

.message-body pre code {
    background: none;
    padding: 0;
    color: #abb2bf;
}

/* 代码块容器样式 - DeepSeek风格 */
.code-block-container {
    margin: 16px 0;
    border-radius: 12px;
    overflow: hidden;
    background-color: #1e1e2e;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.code-block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background-color: #2d2d3d;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.code-block-lang {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: lowercase;
    font-family: 'Consolas', 'Monaco', monospace;
}

.code-block-actions {
    display: flex;
    gap: 8px;
}

.code-block-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s ease;
}

.code-block-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

.code-block-btn.copied {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
    border-color: rgba(34, 197, 94, 0.3);
}

.code-block-pre {
    margin: 0;
    padding: 16px;
    background-color: transparent;
    border: none;
    border-radius: 0;
    overflow-x: auto;
    transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.3s ease;
}

/* 代码块折叠状态 */
.code-block-container.collapsed .code-block-pre {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0;
    overflow: hidden;
}

.code-block-container.collapsed .code-block-header {
    border-bottom-color: transparent;
}

.code-block-pre code {
    background: none;
    padding: 0;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #e0e0e0;
    white-space: pre;
    word-break: normal;
    word-wrap: normal;
    tab-size: 4;
}

/* 浅色主题代码块样式 */
[data-theme="light"] .code-block-container {
    background-color: #ffffff;
    border-color: #d0d7de;
}

[data-theme="light"] .code-block-header {
    background-color: #f6f8fa;
    border-bottom-color: #d0d7de;
}

[data-theme="light"] .code-block-lang {
    color: #656d76;
}

[data-theme="light"] .code-block-btn {
    background: rgba(0, 0, 0, 0.05);
    border-color: #d0d7de;
    color: #656d76;
}

[data-theme="light"] .code-block-btn:hover {
    background: rgba(0, 0, 0, 0.1);
    color: #24292f;
}

[data-theme="light"] .code-block-pre {
    background-color: #ffffff;
}

[data-theme="light"] .code-block-pre code {
    color: #24292f;
}

.message-body ul,
.message-body ol {
    margin: 16px 0;
    padding-left: 28px;
    list-style: disc;
}

.message-body ol {
    list-style: decimal;
}

.message-body li {
    margin-bottom: 8px;
    padding-left: 4px;
    line-height: 1.7;
}

.message-body blockquote {
    border-left: 4px solid var(--primary-color);
    padding: 12px 16px;
    margin: 16px 0;
    background-color: rgba(99, 102, 241, 0.05);
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
}

.message-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    border-radius: 8px;
    overflow: hidden;
}

.message-body th,
.message-body td {
    border: 1px solid var(--border-color);
    padding: 10px 14px;
    text-align: left;
}

.message-body th {
    background-color: rgba(99, 102, 241, 0.1);
    font-weight: 600;
}

.message-body tr:hover td {
    background-color: rgba(0, 0, 0, 0.02);
}

/* 图片消息样式 */
.message-image {
    max-width: 100%;
    border-radius: 8px;
    margin-top: 12px;
}

/* 用户上传的图片 */
.message-body .user-image {
    max-width: 300px;
    max-height: 300px;
    border-radius: 8px;
    margin: 8px 0;
    cursor: pointer;
    transition: transform 0.2s;
}

.message-body .user-image:hover {
    transform: scale(1.02);
}

/* AI生成的图片 */
.message-body .generated-image {
    max-width: 100%;
    max-height: 400px;
    border-radius: 8px;
    margin: 8px 0;
    cursor: pointer;
    transition: transform 0.2s;
    object-fit: contain;
}

.message-body .generated-image:hover {
    transform: scale(1.02);
}

/* 搜索链接样式 */
.search-links {
    margin-top: 16px;
    padding: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.search-links-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.search-links-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.search-link-item {
    display: flex;
    gap: 10px;
    padding: 10px;
    border-radius: 6px;
    background: var(--bg-tertiary);
    transition: background-color 0.2s;
}

.search-link-item:hover {
    background: var(--border-color);
}

.search-link-index {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}

.search-link-content {
    flex: 1;
    min-width: 0;
}

.search-link-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-color);
    text-decoration: none;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-link-title:hover {
    text-decoration: underline;
}

.search-link-snippet {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-link-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
}

.search-link-logo {
    width: 14px;
    height: 14px;
    border-radius: 2px;
    object-fit: contain;
}

.search-link-site {
    font-size: 11px;
    color: var(--text-tertiary);
}

/* 图片容器（用于叠加下载图标） */
.image-wrapper {
    position: relative;
    display: inline-block;
}

/* AI图片下载图标 */
.btn-download-image {
    position: absolute;
    bottom: 12px;
    right: 8px;
    width: 32px;
    height: 32px;
    background: rgba(0, 0, 0, 0.55);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
}

.image-wrapper:hover .btn-download-image {
    opacity: 1;
}

.btn-download-image svg {
    width: 18px;
    height: 18px;
    fill: white;
}

/* 消息操作按钮 */
.message-actions {
    display: flex;
    gap: 4px;
}

.btn-message-action {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 22px;
    height: 22px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s;
}

.btn-message-action:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.btn-message-action.btn-delete:hover {
    background-color: var(--danger-color);
    border-color: var(--danger-color);
    color: white;
}

.btn-message-action.copied {
    background-color: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

/* 内容生成中 */
.message-generating {
    font-size: 14px;
    padding: 8px 0;
    background: linear-gradient(90deg, var(--text-secondary), var(--primary-color), var(--text-secondary));
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textShimmer 2s linear infinite;
}

@keyframes textShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* 输入区域 */
.input-area {
    background-color: var(--chat-bg);
    padding: 16px 24px 24px;
}

.input-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 12px 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.15);
}

.input-main {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

/* 图片上传按钮 */
.btn-upload {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s;
    flex-shrink: 0;
}

.btn-upload:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

/* 图片预览容器 */
.image-preview-container {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.image-preview-item {
    position: relative;
    display: inline-block;
    max-width: 200px;
}

.image-preview-item img {
    max-width: 100%;
    max-height: 150px;
    border-radius: 8px;
    object-fit: cover;
}

.btn-remove-image {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    background: var(--danger-color);
    border: none;
    color: white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1;
    transition: background-color 0.2s;
}

.btn-remove-image:hover {
    background: var(--danger-hover);
}

#messageInput {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 15px;
    line-height: 1.5;
    resize: none;
    outline: none;
    max-height: 400px;
    min-height: 24px;
    font-family: inherit;
}

#messageInput::placeholder {
    color: var(--text-secondary);
}

/* PC端：输入框默认三行高度 */
@media (min-width: 769px) {
    #messageInput {
        min-height: 68px;
    }
}

.btn-send {
    background: var(--primary-color);
    border: none;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, transform 0.1s;
    flex-shrink: 0;
}

.btn-send:hover {
    background: var(--primary-hover);
}

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

.btn-send:disabled {
    background: #4a4a4e;
    cursor: not-allowed;
    opacity: 0.6;
}

.input-footer {
    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, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--sidebar-bg);
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    transform: scale(0.9);
    transition: transform 0.3s;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 20px;
    font-weight: 600;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
    transition: color 0.2s;
}

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

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

/* 设置选项卡 */
.settings-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.tab-btn {
    flex: 1 1 calc(33.33% - 8px);
    padding: 8px 16px;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
    text-align: center;
}

.tab-btn:hover {
    border-color: var(--primary-color);
    color: var(--text-primary);
}

.tab-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.tab-panel {
    display: none;
}

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

/* 设置分组 */
.setting-group {
    margin-bottom: 24px;
}

.setting-group h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.input-group {
    margin-bottom: 16px;
}

.input-group label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 10px 12px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.input-group input:focus,
.input-group select:focus {
    border-color: var(--primary-color);
}

.input-group small {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.checkbox-group label {
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
}

.checkbox-group small {
    width: 100%;
    font-size: 12px;
    color: var(--text-secondary);
    margin-left: 26px;
}

/* 按钮样式 */
.btn-save {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    border: none;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-save:hover {
    background: var(--primary-hover);
}

.btn-danger {
    width: 100%;
    padding: 12px;
    background: var(--danger-color);
    border: none;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    margin-top: 12px;
    transition: background-color 0.2s;
}

.btn-danger:hover {
    background: var(--danger-hover);
}

.btn-add {
    width: 100%;
    padding: 12px;
    background: var(--success-color);
    border: none;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-add:hover {
    background: #16a34a;
}

/* 自定义模型列表 */
.custom-models-list {
    max-height: 300px;
    overflow-y: auto;
}

.custom-model-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background-color: var(--input-bg);
    border-radius: 8px;
    margin-bottom: 8px;
}

.custom-model-info h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.custom-model-info p {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.btn-delete-model {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    transition: color 0.2s;
}

.btn-delete-model:hover {
    color: var(--danger-color);
}

/* 头像设置 */
.avatar-current {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 14px;
    color: var(--text-secondary);
}

.avatar-preview {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    overflow: hidden;
}

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

.avatar-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.avatar-option {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    background-color: var(--input-bg);
    transition: border-color 0.2s, transform 0.15s;
}

.avatar-option:hover {
    border-color: var(--primary-color);
    transform: scale(1.08);
}

.avatar-option.active {
    border-color: var(--primary-color);
    background-color: rgba(99, 102, 241, 0.15);
}

.avatar-upload-area {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

/* 记忆统计 */
.memory-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat {
    background-color: var(--input-bg);
    padding: 16px;
    border-radius: 8px;
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.stat-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.memory-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.memory-items {
    max-height: 300px;
    overflow-y: auto;
}

.memory-item {
    background-color: var(--input-bg);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 8px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
}

.memory-item-time {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 8px;
}

.memory-item-delete {
    float: right;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s;
}

.memory-item-delete:hover {
    color: var(--danger-color);
}

/* Toast 通知 */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    z-index: 2000;
    transition: transform 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 80%;
        --sidebar-max-width: 320px;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: var(--sidebar-width);
        max-width: var(--sidebar-max-width);
        transform: translateX(-100%);
        z-index: 1001;
    }

    .sidebar.active {
        transform: translateX(0);
    }

    /* 侧边栏遮罩层 */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
    }

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

    /* 侧边栏关闭按钮 */
    .sidebar-close-btn {
        display: flex;
    }

    .model-selector select {
        max-width: 180px;
        font-size: 13px;
    }

    .welcome-message h1 {
        font-size: 24px;
    }

    .memory-stats {
        grid-template-columns: 1fr;
    }

    /* 导航栏响应式 */
    .header {
        padding: 0 12px;
        gap: 10px;
    }

    .header-actions {
        gap: 6px;
    }

    /* 移动端隐藏桌面端按钮 */
    .desktop-only-btn {
        display: none !important;
    }

    /* 显示二级菜单按钮 */
    .more-menu-container {
        display: block;
    }

    .btn-more-menu {
        width: 32px;
        height: 32px;
    }
}

/* 动画效果 */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.history-item {
    animation: slideIn 0.2s ease;
}

/* 代码语法高亮样式 */
.message-body pre {
    position: relative;
}

.message-body pre::before {
    content: attr(data-lang);
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 12px;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* 语法高亮颜色 - 深色主题 */
.hljs-keyword {
    color: #c678dd;
    font-weight: 500;
}

.hljs-string {
    color: #98c379;
}

.hljs-comment {
    color: #5c6370;
    font-style: italic;
}

.hljs-number {
    color: #d19a66;
}

.hljs-function {
    color: #61afef;
}

.hljs-class {
    color: #e5c07b;
}

.hljs-variable {
    color: #e06c75;
}

.hljs-attr {
    color: #d19a66;
}

.hljs-tag {
    color: #e06c75;
}

.hljs-selector {
    color: #c678dd;
}

.hljs-symbol {
    color: #56b6c2;
}

.hljs-operator {
    color: #56b6c2;
}

/* 浅色主题语法高亮 */
[data-theme="light"] .hljs-keyword {
    color: #d73a49;
    font-weight: 500;
}

[data-theme="light"] .hljs-string {
    color: #032f62;
}

[data-theme="light"] .hljs-comment {
    color: #6a737d;
    font-style: italic;
}

[data-theme="light"] .hljs-number {
    color: #005cc5;
}

[data-theme="light"] .hljs-function {
    color: #6f42c1;
}

[data-theme="light"] .hljs-class {
    color: #6f42c1;
}

[data-theme="light"] .hljs-variable {
    color: #e36209;
}

[data-theme="light"] .hljs-attr {
    color: #005cc5;
}

[data-theme="light"] .hljs-tag {
    color: #22863a;
}

[data-theme="light"] .hljs-selector {
    color: #6f42c1;
}

[data-theme="light"] .hljs-symbol {
    color: #005cc5;
}

/* 链接样式增强 */
.message-body a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.message-body a:hover {
    border-bottom-color: var(--primary-color);
}

/* 图片样式 */
.message-body img {
    max-width: 100%;
    height: auto;
    margin: 12px 0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* 表格样式增强 */
.message-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 14px;
}

.message-body th {
    background-color: rgba(99, 102, 241, 0.2);
    font-weight: 600;
}

.message-body tr:hover td {
    background-color: rgba(255, 255, 255, 0.05);
}

/* 选中文本样式 */
::selection {
    background-color: var(--primary-color);
    color: white;
}

/* DeepSeek 深度思考按钮 */
.btn-thinking-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-thinking-toggle:hover {
    border-color: var(--primary-color);
    color: var(--text-primary);
}

.btn-thinking-toggle.active {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* 推理强度选择器 */
.reasoning-strength {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 10px;
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    outline: none;
}

.reasoning-strength:hover {
    border-color: var(--primary-color);
    color: var(--text-primary);
}

.reasoning-strength:focus {
    border-color: var(--primary-color);
}

/* API Key 获取地址区域 */
.api-key-links {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px;
    margin-top: 8px;
}

.api-key-links h3 {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.api-link-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    font-size: 13px;
}

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

.api-link-label {
    color: var(--text-secondary);
    min-width: 80px;
    font-weight: 500;
}

.api-link-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

.api-link-item a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.api-link-hint {
    color: var(--text-muted);
    font-size: 12px;
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 4px;
}

/* 存储设置 */
.storage-actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.storage-actions .btn-save,
.storage-actions .btn-add {
    flex: 1;
    min-width: 120px;
}

.storage-info {
    margin-top: 16px;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    font-size: 13px;
}

.storage-info p {
    margin-bottom: 8px;
    color: var(--text-primary);
}

.storage-info ul {
    margin: 0;
    padding-left: 20px;
    color: var(--text-secondary);
}

.storage-info li {
    margin-bottom: 4px;
}

.storage-stats {
    display: flex;
    gap: 20px;
    margin-bottom: 16px;
}

.storage-stats .stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.storage-stats .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.storage-stats .stat-value {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
}

/* 深度思考内容展示 */
.thinking-content {
    margin-bottom: 12px;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: rgba(99, 102, 241, 0.05);
}

.thinking-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s;
}

.thinking-header:hover {
    background: rgba(99, 102, 241, 0.08);
}

.thinking-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
}

.thinking-header-left svg {
    flex-shrink: 0;
}

.thinking-duration {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 400;
}

.thinking-toggle-icon {
    transition: transform 0.3s;
    color: var(--text-secondary);
}

.thinking-content.expanded .thinking-toggle-icon {
    transform: rotate(180deg);
}

.thinking-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.thinking-content.expanded .thinking-body {
    max-height: 2000px;
}

.thinking-text {
    padding: 6px 14px 8px;
    font-size: 13px;
    line-height: 1.4;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-word;
    border-top: 1px solid var(--border-color);
}

.thinking-text p {
    margin: 2px 0;
}

.thinking-text ul,
.thinking-text ol {
    margin: 2px 0;
    padding-left: 20px;
}

.thinking-text li {
    margin: 1px 0;
}

.thinking-text hr {
    margin: 4px 0;
    border: none;
    border-top: 1px solid var(--border-color);
}

.thinking-text strong {
    margin: 0;
    display: inline;
}

/* 深度思考设置描述 */
.setting-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 16px;
    padding: 10px 12px;
    background: rgba(99, 102, 241, 0.08);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}