/* 根变量（默认浅色主题） */
:root {
    --cerebr-bg-color: #ffffff;
    --cerebr-text-color: #000000;
    --cerebr-message-user-bg: #e3f2fd;
    --cerebr-message-ai-bg: #f8fafc;
    --cerebr-input-bg: #f8f8f8;
    --cerebr-icon-color: #666666;
    --cerebr-blur-radius: 12px;
}

/* 深色主题变量 */
:root.dark-theme {
    --cerebr-bg-color: #262B33;
    --cerebr-text-color: #abb2bf;
    --cerebr-message-user-bg: #3E4451;
    --cerebr-message-ai-bg: #2c313c;
    --cerebr-input-bg: #21252b;
    --cerebr-icon-color: #abb2bf;
}

/* 系统深色主题 */
@media (prefers-color-scheme: dark) {
    :root:not(.light-theme) {
        --cerebr-bg-color: #262B33;
        --cerebr-text-color: #abb2bf;
        --cerebr-message-user-bg: #3E4451;
        --cerebr-message-ai-bg: #2c313c;
        --cerebr-input-bg: #21252b;
        --cerebr-icon-color: #abb2bf;
    }
}

/* 基础样式 */
body {
    margin: 0;
    padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom) 0;
    height: 100vh;
    height: -webkit-fill-available;
    display: flex;
    flex-direction: column;
    background-color: var(--cerebr-bg-color);
    color: var(--cerebr-text-color);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    overflow: hidden;
    backdrop-filter: blur(var(--cerebr-blur-radius));
    -webkit-backdrop-filter: blur(var(--cerebr-blur-radius));
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

/* 侧边栏基础样式 */
.cerebr-sidebar {
    position: fixed;
    top: 20px;
    right: -450px;
    width: 430px;
    height: calc(100vh - 40px);
    background: var(--cerebr-bg-color);
    color: var(--cerebr-text-color);
    box-shadow: -2px 0 15px rgba(0,0,0,0.1);
    z-index: 2147483647;
    border-radius: 12px;
    margin-right: 20px;
    overflow: hidden;
    visibility: hidden;
    transform: translateX(0);
    pointer-events: none;
    contain: style layout size;
    isolation: isolate;
}

.cerebr-sidebar.initialized {
    visibility: visible;
    transition: transform 0.3s ease;
    pointer-events: auto;
}

.cerebr-sidebar.visible {
    transform: translateX(-450px);
}

/* 侧边栏组件样式 */
.cerebr-sidebar__header {
    height: 40px;
    background: #f5f5f5;
    border-bottom: 1px solid #ddd;
    display: flex;
    align-items: center;
    padding: 0 15px;
}

.cerebr-sidebar__resizer {
    position: absolute;
    left: 0;
    top: 0;
    width: 5px;
    height: 100%;
    cursor: ew-resize;
}

.cerebr-sidebar__content {
    height: 100%;
    overflow: hidden;
    border-radius: 12px;
    contain: style layout size;
}

.cerebr-sidebar__iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: var(--cerebr-bg-color);
    contain: strict;
}

/* 聊天容器样式 */
#chat-container {
    flex: 1;
    overflow-y: scroll;
    padding: 15px;
    padding-top: calc(15px + env(safe-area-inset-top));
    padding-bottom: calc(60px + env(safe-area-inset-bottom));
    scrollbar-width: none;
    -ms-overflow-style: none;
    min-height: 100%;
    -webkit-overflow-scrolling: touch;
    transform: translateZ(0);
    scroll-behavior: smooth;
    overscroll-behavior-y: contain;
    position: relative;
    height: 100%;
    box-sizing: border-box;
    margin-top: var(--chat-top-margin, 0px);
    transition: margin-top 0.3s ease;
}

#chat-container::-webkit-scrollbar {
    display: none;
}

.keyboard-visible #chat-container {
    padding-bottom: calc(60px + env(safe-area-inset-bottom) + var(--keyboard-height, 0px));
}

/* 消息样式 */
.message {
    margin: 8px 0;
    padding: 12px 16px;
    border-radius: 8px;
    width: fit-content;
    max-width: calc(100% - 32px);
    word-wrap: break-word;
    font-size: 14px;
    line-height: 1.5;
    position: relative;
    opacity: 0;
    transform: translateY(8px) scale(0.98);
    animation: messageAppear 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    will-change: transform, opacity;
    backdrop-filter: blur(var(--cerebr-blur-radius));
    -webkit-backdrop-filter: blur(var(--cerebr-blur-radius));
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* 消息中的图片样式 */
.message img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 8px 0;
    border-radius: 6px;
}

/* 添加更新中的消息样式 */
.message.updating {
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
}

.message:hover {
    transform: translateY(-1px) translateZ(0);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.user-message {
    background-color: var(--cerebr-message-user-bg);
    margin-left: auto;
    margin-right: 0;
    border-bottom-right-radius: 4px;
}

.ai-message {
    background-color: var(--cerebr-message-ai-bg);
    margin-right: auto;
    margin-left: 0;
    border-bottom-left-radius: 4px;
    -webkit-touch-callout: none; /* iOS Safari */
}

/* 输入区域样式 */
#input-container {
    padding: 0;
    background-color: var(--cerebr-input-bg);
    display: flex;
    align-items: flex-start;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    flex-shrink: 0;
    backdrop-filter: blur(var(--cerebr-blur-radius));
    -webkit-backdrop-filter: blur(var(--cerebr-blur-radius));
    box-shadow: 0 -1px 0 rgba(0, 0, 0, 0.1);
    padding-bottom: env(safe-area-inset-bottom);
    z-index: 100;
    min-height: 48px;
}

#message-input {
    flex: 1;
    padding: 12px;
    border: none;
    background-color: transparent;
    color: var(--cerebr-text-color);
    font-size: 14px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    outline: none;
    resize: none;
    box-sizing: border-box;
    min-height: 24px;
    max-height: 200px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: break-word;
    overflow-y: auto;
}

#message-input:empty::before {
    content: attr(placeholder);
    color: var(--cerebr-text-color);
    opacity: 0.5;
    cursor: text;
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
}

#message-input:focus {
    outline: none;
}

#message-input br {
    display: none;
}

#message-input br:first-child {
    display: block;
}

/* 设置按钮和菜单样式 */
#settings-button {
    padding: 12px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--cerebr-icon-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

#settings-button svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    opacity: 0.6;
    transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55),
                opacity 0.2s ease;
}

#settings-button:hover svg {
    transform: scale(1.25);
    opacity: 1;
}

#settings-button:active svg {
    transform: scale(0.95);
    opacity: 0.8;
}

#settings-menu {
    position: absolute;
    bottom: 100%;
    left: 8px;
    background-color: var(--cerebr-bg-color);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    padding: 8px;
    display: none;
    min-width: 180px;
    margin-bottom: 8px;
    transform-origin: bottom left;
    backdrop-filter: blur(var(--cerebr-blur-radius));
    -webkit-backdrop-filter: blur(var(--cerebr-blur-radius));
}

#settings-menu.visible {
    display: block;
    animation: menuAppear 0.2s ease;
}

.menu-item {
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--cerebr-text-color);
    border-radius: 6px;
    margin: 2px 0;
}

.menu-item:hover {
    background-color: var(--cerebr-message-user-bg);
}

/* 开关样式 */
.switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(128, 128, 128, 0.3);
    transition: .3s;
    border-radius: 20px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background-color: #fff;
    transition: .3s;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

input:checked + .slider {
    background-color: #34c759;
}

input:checked + .slider:before {
    transform: translateX(16px);
}

/* API设置页面样式 */
#api-settings {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--cerebr-bg-color);
    display: none;
    flex-direction: column;
    padding: 20px;
    overflow-y: auto;
    backdrop-filter: blur(var(--cerebr-blur-radius));
    -webkit-backdrop-filter: blur(var(--cerebr-blur-radius));
    z-index: 200;
}

#api-settings.visible {
    display: flex;
}

.settings-header {
    padding: 16px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--cerebr-bg-color);
    position: sticky;
    top: 0;
    z-index: 1;
}

.back-button {
    background: none;
    border: none;
    padding: 8px;
    margin-right: 12px;
    cursor: pointer;
    color: var(--cerebr-text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.back-button:hover {
    background-color: var(--cerebr-message-user-bg);
}

.settings-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--cerebr-text-color);
}

.api-cards {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* API卡片基础样式 */
.api-card {
    background: var(--cerebr-message-ai-bg);
    border-radius: 8px;
    padding: 15px;
    position: relative;
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.15);
    transition: all 0.2s ease;
    backdrop-filter: blur(var(--cerebr-blur-radius));
    -webkit-backdrop-filter: blur(var(--cerebr-blur-radius));
    outline: none;
}

.api-card:hover,
.api-card:focus {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.api-card.selected {
    border-color: rgba(0, 122, 255, 0.5);
    box-shadow: 0 0 0 1px rgba(0, 122, 255, 0.5);
}

.api-card:focus:not(.selected) {
    border-color: rgba(0, 122, 255, 0.3);
    box-shadow: 0 0 0 1px rgba(0, 122, 255, 0.3);
}

.card-actions {
    display: flex;
    gap: 8px;
    z-index: 3;
}

.card-button {
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--cerebr-text-color);
    opacity: 0.6;
    transition: opacity 0.2s, background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 4px;
    position: relative;
}

.card-button:hover {
    opacity: 1;
    background-color: rgba(0, 0, 0, 0.1);
}

.card-button svg {
    width: 16px;
    height: 16px;
    pointer-events: none;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.5;
}

.api-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 100%;
}

.form-group input,
.system-prompt {
    width: 100%;
    box-sizing: border-box;
}

.form-group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.form-group label {
    font-size: 12px;
    opacity: 0.8;
}

.form-group input {
    width: 100%;
    background: var(--cerebr-message-ai-bg);
    border: 1px solid rgba(0, 0, 0, 0.15);
    padding: 8px;
    border-radius: 4px;
    color: var(--cerebr-text-color);
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: rgba(0, 122, 255, 0.5);
    box-shadow: 0 0 0 1px rgba(0, 122, 255, 0.5);
}

/* 深色主题输入框边框 */
:root.dark-theme .form-group input {
    border-color: rgba(255, 255, 255, 0.1);
}

/* 系统深色模式 */
@media (prefers-color-scheme: dark) {
    :root:not(.light-theme) .form-group input {
        border-color: rgba(255, 255, 255, 0.1);
    }
}

/* Markdown 样式 */
.message pre code {
    display: block;
    overflow-x: auto;
    padding: 1em;
    border-radius: 6px;
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
    white-space: pre;
    /* 浅色模式默认样式 */
    background: #f6f8fa;
    color: #24292e;
    border: 1px solid #e1e4e8;
}

/* 深色模式样式 */
:root.dark-theme .message pre code {
    background: #282c34;
    color: #abb2bf;
    border: none;
    /* 滚动条样式 */
    scrollbar-width: thin;
    scrollbar-color: #4b5263 #282c34;
}

:root.dark-theme .message pre code::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

:root.dark-theme .message pre code::-webkit-scrollbar-track {
    background: #282c34;
}

:root.dark-theme .message pre code::-webkit-scrollbar-thumb {
    background-color: #4b5263;
    border-radius: 4px;
    border: 2px solid #282c34;
}

/* 系统深色模式 */
@media (prefers-color-scheme: dark) {
    :root:not(.light-theme) .message pre code {
        background: #282c34;
        color: #abb2bf;
        border: none;
        /* 滚动条样式 */
        scrollbar-width: thin;
        scrollbar-color: #4b5263 #282c34;
    }

    :root:not(.light-theme) .message pre code::-webkit-scrollbar {
        width: 8px;
        height: 8px;
    }

    :root:not(.light-theme) .message pre code::-webkit-scrollbar-track {
        background: #282c34;
    }

    :root:not(.light-theme) .message pre code::-webkit-scrollbar-thumb {
        background-color: #4b5263;
        border-radius: 4px;
        border: 2px solid #282c34;
    }
}

.message code {
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 4px;
    border-radius: 4px;
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
}

.message p {
    margin: 0;
    line-height: 1.5;
}

.message p + p {
    margin-top: 0.5em;
}

.message ul, .message ol {
    margin: 0.5em 0;
    padding-left: 24px;
}

.message blockquote {
    margin: 0.5em 0;
    padding-left: 12px;
    border-left: 4px solid rgba(0, 0, 0, 0.2);
    color: rgba(0, 0, 0, 0.7);
}

.message pre {
    margin: 12px 0;
    position: relative;
    border-radius: 8px;
    background-color: #0d1117;
    overflow: hidden;
}

.message pre code {
    display: block;
    padding: 16px;
    overflow-x: auto;
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
    tab-size: 4;
    -webkit-font-smoothing: auto;
    border-radius: 8px;
    background-color: #f6f8fa;
    color: #24292e;
    border: 1px solid #e1e4e8;
}

/* 行内代码样式 */
.message code:not(pre code) {
    padding: 2px 6px;
    margin: 0 2px;
    border-radius: 4px;
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    background-color: rgba(175, 184, 193, 0.2);
    color: var(--cerebr-text-color);
}

/* 滚动条样式 */
.message pre code::-webkit-scrollbar {
    height: 8px;
    background-color: #f6f8fa;
}

.message pre code::-webkit-scrollbar-thumb {
    background-color: #d1d5da;
    border-radius: 4px;
}

.message pre code::-webkit-scrollbar-thumb:hover {
    background-color: #a5a9ad;
}

/* 深色主题适配 */
:root.dark-theme .message code:not(pre code) {
    background-color: rgba(99, 110, 123, 0.4);
}

@media (prefers-color-scheme: dark) {
    :root:not(.light-theme) .message code:not(pre code) {
        background-color: rgba(99, 110, 123, 0.4);
    }
}

/* 语言标签 */
.message pre::before {
    content: attr(data-language);
    position: absolute;
    top: 1px;
    right: 1px;
    padding: 4px 8px;
    font-size: 12px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #57606a;
    background-color: #f6f8fa;
    border-bottom-left-radius: 8px;
    opacity: 0.5;
}

/* 深色模式语言标签 */
:root.dark-theme .message pre::before {
    color: #7d8590;
    background-color: #161b22;
}

/* 系统深色模式 */
@media (prefers-color-scheme: dark) {
    :root:not(.light-theme) .message pre::before {
        color: #7d8590;
        background-color: #161b22;
    }
}

/* MathJax样式 */
.MathJax {
    font-size: 1em !important;
}

.math-display-container {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    margin: 0.1em 0;
    padding: 0.1em 0;
}

.math-display-container + br + .math-display-container {
    margin-top: -1em;
}

.math-display-container + br {
    display: none;
}

.MathJax_Display {
    overflow-x: visible;
    overflow-y: hidden;
    margin: 0;
}

.MathJax_SVG_Display {
    text-align: center;
    margin: 0;
    position: relative;
}

.MathJax_SVG {
    display: inline-block;
    font-style: normal;
    font-weight: normal;
    line-height: normal;
    font-size: 1.21em;
    text-indent: 0;
    text-align: left;
    text-transform: none;
    letter-spacing: normal;
    word-spacing: normal;
    word-wrap: normal;
    white-space: nowrap;
    float: none;
    direction: ltr;
    max-width: none;
    max-height: none;
    min-width: 0;
    min-height: 0;
    border: 0;
    padding: 0;
    margin: 0;
}

/* 右键菜单样式 */
#context-menu {
    position: fixed;
    background: var(--cerebr-bg-color);
    border-radius: 8px;
    padding: 6px;
    min-width: 140px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    z-index: 2147483647;
    display: none;
    backdrop-filter: blur(var(--cerebr-blur-radius));
    -webkit-backdrop-filter: blur(var(--cerebr-blur-radius));
    border: 1px solid rgba(255, 255, 255, 0.1);
    touch-action: none;
}

#context-menu.visible {
    display: block;
}

.context-menu-item {
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--cerebr-text-color);
    font-size: 13px;
    border-radius: 6px;
    margin: 2px 0;
    transition: background-color 0.2s ease;
    white-space: nowrap;
}

.context-menu-item:hover {
    background-color: var(--cerebr-message-user-bg);
}

.context-menu-item svg {
    width: 14px;
    height: 14px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    flex-shrink: 0;
}

/* 链接样式 */
.message a {
    color: #0366d6;
    text-decoration: none;
}

.message a:hover {
    text-decoration: underline;
}

/* 图片组件样式 */
.image-tag {
    display: inline-flex;
    align-items: center;
    background: rgba(0, 122, 255, 0.08);
    border: 1px solid rgba(0, 122, 255, 0.15);
    border-radius: 6px;
    padding: 4px 6px;
    margin: 0 4px;
    height: 24px;
    cursor: pointer;
    user-select: none;
    vertical-align: middle;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    gap: 6px;
    line-height: 1;
    box-sizing: border-box;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.image-tag:hover {
    background: rgba(0, 122, 255, 0.12);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.image-tag:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.image-tag img {
    width: 16px;
    height: 16px;
    object-fit: cover;
    border-radius: 4px;
    margin: 0;
}

.image-tag .delete-btn {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    color: var(--cerebr-text-color);
    opacity: 0.6;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-tag .delete-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

.image-tag .delete-btn:active {
    transform: scale(0.95);
}

.image-tag .delete-btn svg {
    width: 12px;
    height: 12px;
    stroke: currentColor;
    stroke-width: 2;
}

/* 图片预览模态框样式 */
.image-preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.image-preview-modal.visible {
    opacity: 1;
    visibility: visible;
}

.image-preview-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.image-preview-content img {
    max-width: 100%;
    max-height: 90vh;
    display: block;
}

.image-preview-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    background: rgba(0, 0, 0, 0.6);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}

.image-preview-close:hover {
    background: rgba(0, 0, 0, 0.8);
}

.image-preview-close svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
    .slider {
        background-color: rgba(255, 255, 255, 0.15);
    }

    input:checked + .slider {
        background-color: #32d74b;
    }

    .card-button:hover {
        background-color: rgba(255, 255, 255, 0.1);
    }

    .message blockquote {
        border-left-color: rgba(255, 255, 255, 0.2);
        color: rgba(255, 255, 255, 0.7);
    }

    .message code:not(pre code) {
        background: rgba(255, 255, 255, 0.1);
    }

    .message a {
        color: #58a6ff;
    }

    .image-tag {
        background: rgba(10, 132, 255, 0.12);
        border-color: rgba(10, 132, 255, 0.2);
        box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    }

    .image-tag:hover {
        background: rgba(10, 132, 255, 0.18);
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.25);
    }

    .message {
        box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    }

    .message:hover {
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    }
}

/* 动画 */
@keyframes messageAppear {
    0% {
        opacity: 0;
        transform: translateY(16px) scale(0.98);
    }
    40% {
        opacity: 1;
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes menuAppear {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 加载状态样式 */
.loading-content #webpage-switch:checked {
    opacity: 0;
}

.loading-content #webpage-switch:checked + .slider {
    background-color: rgba(128, 128, 128, 0.3);
}

.loading-content #webpage-switch:checked + .slider:before {
    display: none;
}

.loading-content #webpage-switch:checked + .slider:after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: var(--cerebr-text-color);
    border-radius: 50%;
    animation: loading-spinner 0.8s linear infinite;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

@keyframes loading-spinner {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 确保加载状态下的UI响应性 */
.loading-content {
    pointer-events: auto !important;
}

.loading-content #webpage-switch {
    pointer-events: none;
}

.loading-content #chat-container,
.loading-content #input-container,
.loading-content #settings-button,
.loading-content #settings-menu,
.loading-content .menu-item:not(#webpage-qa) {
    pointer-events: auto !important;
}

/* 加载状态下的菜单项样式 */
.loading-content #webpage-qa {
    opacity: 0.7;
    cursor: wait;
}

/* 深色模式适配加载动画 */
@media (prefers-color-scheme: dark) {
    .loading-content #webpage-switch:checked + .slider:after {
        border-top-color: var(--cerebr-text-color);
    }
}

/* 批量加载时的消息样式 */
.message.batch-load {
    animation: none;
    opacity: 0;
    transform: translateY(16px) scale(0.98);
}

.message.batch-load.show {
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#stop-update svg {
    fill: currentColor;
    stroke: none;
}

#stop-update:hover {
    background-color: var(--cerebr-message-user-bg);
    color: #ff4d4d;
}

#delete-message:hover {
    background-color: var(--cerebr-message-user-bg);
    color: #ff4d4d;
}

/* 当API设置界面显示时隐藏输入框 */
#api-settings.visible ~ #input-container {
    display: none;
}

/* 允许代码块内的文本选择 */
.ai-message pre,
.ai-message code {
    -webkit-touch-callout: text;
    -webkit-user-select: text;
    -khtml-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* 浅色模式代码高亮 */
.message pre code .hljs-keyword {
    color: #d73a49;
}

.message pre code .hljs-built_in {
    color: #005cc5;
}

.message pre code .hljs-type {
    color: #d73a49;
}

.message pre code .hljs-literal {
    color: #005cc5;
}

.message pre code .hljs-number {
    color: #005cc5;
}

.message pre code .hljs-regexp {
    color: #032f62;
}

.message pre code .hljs-string {
    color: #032f62;
}

.message pre code .hljs-comment {
    color: #6a737d;
}

.message pre code .hljs-doctag {
    color: #d73a49;
}

.message pre code .hljs-meta {
    color: #6a737d;
}

.message pre code .hljs-title {
    color: #6f42c1;
}

.message pre code .hljs-tag {
    color: #22863a;
}

.message pre code .hljs-attr {
    color: #005cc5;
}

.message pre code .hljs-attribute {
    color: #005cc5;
}

.message pre code .hljs-template-tag {
    color: #d73a49;
}

.message pre code .hljs-template-variable {
    color: #d73a49;
}

.message pre code .hljs-variable {
    color: #d73a49;
}

.message pre code .hljs-bullet {
    color: #735c0f;
}

.message pre code .hljs-emphasis {
    color: #24292e;
    font-style: italic;
}

.message pre code .hljs-strong {
    color: #24292e;
    font-weight: bold;
}

/* 深色模式代码高亮 */
:root.dark-theme .message pre code .hljs-keyword,
:root.dark-theme .message pre code .hljs-type,
:root.dark-theme .message pre code .hljs-template-tag,
:root.dark-theme .message pre code .hljs-template-variable,
:root.dark-theme .message pre code .hljs-variable {
    color: #c678dd;
}

:root.dark-theme .message pre code .hljs-built_in,
:root.dark-theme .message pre code .hljs-literal,
:root.dark-theme .message pre code .hljs-number {
    color: #d19a66;
}

:root.dark-theme .message pre code .hljs-regexp,
:root.dark-theme .message pre code .hljs-string {
    color: #98c379;
}

:root.dark-theme .message pre code .hljs-comment,
:root.dark-theme .message pre code .hljs-meta {
    color: #7f848e;
}

:root.dark-theme .message pre code .hljs-title {
    color: #61afef;
}

:root.dark-theme .message pre code .hljs-tag {
    color: #e06c75;
}

:root.dark-theme .message pre code .hljs-attr,
:root.dark-theme .message pre code .hljs-attribute {
    color: #d19a66;
}

:root.dark-theme .message pre code .hljs-emphasis {
    color: #abb2bf;
    font-style: italic;
}

:root.dark-theme .message pre code .hljs-strong {
    color: #abb2bf;
    font-weight: bold;
}

/* 系统深色模式适配 */
@media (prefers-color-scheme: dark) {
    :root:not(.light-theme) .message pre code .hljs-keyword,
    :root:not(.light-theme) .message pre code .hljs-type,
    :root:not(.light-theme) .message pre code .hljs-template-tag,
    :root:not(.light-theme) .message pre code .hljs-template-variable,
    :root:not(.light-theme) .message pre code .hljs-variable {
        color: #c678dd;
    }

    :root:not(.light-theme) .message pre code .hljs-built_in,
    :root:not(.light-theme) .message pre code .hljs-literal,
    :root:not(.light-theme) .message pre code .hljs-number {
        color: #d19a66;
    }

    :root:not(.light-theme) .message pre code .hljs-regexp,
    :root:not(.light-theme) .message pre code .hljs-string {
        color: #98c379;
    }

    :root:not(.light-theme) .message pre code .hljs-comment,
    :root:not(.light-theme) .message pre code .hljs-meta {
        color: #7f848e;
    }

    :root:not(.light-theme) .message pre code .hljs-title {
        color: #61afef;
    }

    :root:not(.light-theme) .message pre code .hljs-tag {
        color: #e06c75;
    }

    :root:not(.light-theme) .message pre code .hljs-attr,
    :root:not(.light-theme) .message pre code .hljs-attribute {
        color: #d19a66;
    }

    :root:not(.light-theme) .message pre code .hljs-emphasis {
        color: #abb2bf;
        font-style: italic;
    }

    :root:not(.light-theme) .message pre code .hljs-strong {
        color: #abb2bf;
        font-weight: bold;
    }
}

/* 深色主题API卡片边框 */
:root.dark-theme .api-card {
    border-color: rgba(255, 255, 255, 0.1);
}

/* 系统深色模式 */
@media (prefers-color-scheme: dark) {
    :root:not(.light-theme) .api-card {
        border-color: rgba(255, 255, 255, 0.1);
    }
}

/* 高级设置区域样式 */
.advanced-settings {
    margin-top: 0;
    padding-top: 4px;
}

.advanced-settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 8px 12px;
    user-select: none;
    background: var(--cerebr-message-ai-bg);
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.advanced-settings-header:hover {
    opacity: 1;
    background: var(--cerebr-message-user-bg);
}

.toggle-icon {
    transition: transform 0.3s ease;
    font-size: 12px;
    color: var(--cerebr-text-color);
    opacity: 0.6;
}

.advanced-settings-content {
    overflow: hidden;
    transition: height 0.3s ease;
    width: 100%;
    box-sizing: border-box;
}

.setting-item {
    margin-top: 12px;
}

.setting-item label {
    display: block;
    font-size: 12px;
    margin-bottom: 4px;
    color: var(--cerebr-text-color);
    opacity: 0.8;
}

.system-prompt {
    width: 100%;
    min-height: 60px;
    padding: 8px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    background: var(--cerebr-message-ai-bg);
    color: var(--cerebr-text-color);
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.system-prompt:focus {
    outline: none;
    border-color: rgba(0, 122, 255, 0.5);
    box-shadow: 0 0 0 1px rgba(0, 122, 255, 0.5);
}

/* 深色主题适配 */
:root.dark-theme .advanced-settings {
    border-top-color: transparent;
}

:root.dark-theme .system-prompt {
    border-color: rgba(255, 255, 255, 0.1);
}

:root.dark-theme .system-prompt:focus {
    border-color: rgba(0, 122, 255, 0.5);
    box-shadow: 0 0 0 1px rgba(0, 122, 255, 0.5);
}

/* 系统深色模式适配 */
@media (prefers-color-scheme: dark) {
    :root:not(.light-theme) .advanced-settings {
        border-top-color: transparent;
    }

    :root:not(.light-theme) .system-prompt {
        border-color: rgba(255, 255, 255, 0.1);
    }

    :root:not(.light-theme) .system-prompt:focus {
        border-color: rgba(0, 122, 255, 0.5);
        box-shadow: 0 0 0 1px rgba(0, 122, 255, 0.5);
    }
}

/* 深度思考模块样式 */
.reasoning-wrapper {
    margin: 0 0 12px 0;
    padding: 0;
    border: none;
}

.reasoning-toggle {
    cursor: pointer;
    background: transparent;
    color: #666;
    font-size: 0.9em;
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    user-select: none;
    transition: all 0.2s ease;
    width: auto;
    display: inline-block;
}

.reasoning-toggle:hover {
    background: rgba(0, 0, 0, 0.06);
    color: #333;
}

.reasoning-content {
    cursor: pointer;
    background-color: rgba(0, 0, 0, 0.03);
    border-radius: 6px;
    font-size: 0.95em;
    color: #666;
    line-height: 1.5;
    overflow: hidden;
    transition: all 0.2s ease;
    padding: 8px 12px;
}

.reasoning-content:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.reasoning-placeholder {
    display: none;
    font-size: 0.9em;
    color: #666;
}

.reasoning-text {
    word-break: break-word;
    transition: all 0.2s ease;
}

/* 折叠状态 */
.reasoning-content.collapsed {
    padding: 6px 12px;
}

.reasoning-content.collapsed .reasoning-placeholder {
    display: block;
}

.reasoning-content.collapsed .reasoning-text {
    display: none;
}

/* 深色模式样式 */
@media (prefers-color-scheme: dark) {
    .reasoning-content {
        background-color: rgba(255, 255, 255, 0.03);
        color: #999;
    }

    .reasoning-content:hover {
        background-color: rgba(255, 255, 255, 0.05);
    }

    .reasoning-placeholder {
        color: #999;
    }
}

#chat-list-page {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: var(--cerebr-bg-color);
    border-left: 1px solid var(--border-color);
    z-index: 1000;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    display: none;
}

#chat-list-page.show {
    transform: translateX(0);
    display: block;
}

.chat-cards {
    padding: 16px;
    flex: 1;
    overflow-y: auto;
}

.chat-card {
    background: var(--cerebr-message-ai-bg);
    border-radius: 8px;
    position: relative;
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.15);
    transition: all 0.2s ease;
    backdrop-filter: blur(var(--cerebr-blur-radius));
    -webkit-backdrop-filter: blur(var(--cerebr-blur-radius));
    outline: none;
    margin-bottom: 12px;
}

.chat-card:hover,
.chat-card:focus {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.chat-card.selected {
    border-color: rgba(0, 122, 255, 0.5);
    box-shadow: 0 0 0 1px rgba(0, 122, 255, 0.5);
}

.chat-card .card-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
}

.chat-card .chat-title {
    font-size: 14px;
    color: var(--cerebr-text-color);
    flex-grow: 1;
    margin-right: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-card .card-actions {
    display: flex;
    gap: 8px;
    z-index: 3;
}

.chat-card .card-button {
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--cerebr-text-color);
    opacity: 0.6;
    transition: opacity 0.2s, background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 4px;
    position: relative;
}

.chat-card .card-button:hover {
    opacity: 1;
    background-color: rgba(0, 0, 0, 0.1);
}

.chat-card .card-button svg {
    width: 16px;
    height: 16px;
    pointer-events: none;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.5;
}

/* 深色模式适配 */
:root.dark-theme .chat-card {
    border-color: rgba(255, 255, 255, 0.1);
}

@media (prefers-color-scheme: dark) {
    :root:not(.light-theme) .chat-card {
        border-color: rgba(255, 255, 255, 0.1);
    }

    :root:not(.light-theme) .chat-card .card-button:hover {
        background-color: rgba(255, 255, 255, 0.1);
    }
}