/* 基础样式重置与变量定义 */
:root {
    --primary-color: #3f51b5;
    --accent-color: #2196f3;
    --assistant-avatar-bg: #757575;
    --user-card-bg: #eff6ff;
    --assistant-card-bg: #ffffff;
    --dark-bg: #121212;
    --dark-card-bg: #1e1e1e;
    --text-color: #333333;
    --text-light: #ffffff;
    --text-dark: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --animation-duration: 0.3s;
}

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

/* 聊天容器 */
.chat-container {
    height: calc(100vh - 221px);
    overflow-y: auto;
    padding: 16px;
    scroll-behavior: smooth;
    background-color: white;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mdui-theme-layout-dark .chat-container {
    background-color: var(--dark-bg);
}

/* 消息动画与布局 */
.message-animation {
    animation: fadeIn var(--animation-duration) ease-in-out;
}

.message-wrapper {
    display: flex;
    max-width: 90%;
    margin-bottom: 4px;
}

.user-message {
    justify-content: flex-end;
    margin-left: auto;
}

.assistant-message {
    justify-content: flex-start;
    margin-right: auto;
}

/* 消息内容容器 */
.message-content-container {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    max-width: 100%;
}

/* 头像样式 */
.message-avatar {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-light);
}

.assistant-avatar {
    background-color: var(--assistant-avatar-bg);
}

/* 消息卡片 */
.message-card {
    padding: 12px 16px;
    box-shadow: 0 2px 4px var(--shadow-color);
    position: relative;
    word-break: break-word;
    line-height: 1.5;
}

/* 推理内容样式 */
.reasoning-container {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed rgba(0, 0, 0, 0.1);
}

.mdui-theme-layout-dark .reasoning-container {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.reasoning-header {
    font-weight: bold;
    margin-bottom: 8px;
    color: #666;
}

.mdui-theme-layout-dark .reasoning-header {
    color: #999;
}

.reasoning-content {
    font-size: 0.9em;
    line-height: 1.5;
    color: #555;
}

.mdui-theme-layout-dark .reasoning-content {
    color: #aaa;
}

.user-card {
    overflow: hidden;
    background-color: var(--user-card-bg);
    color: var(--text-light);
    border-bottom-right-radius: 4px;
}

.assistant-card {
    background-color: var(--assistant-card-bg);
    color: var(--text-color);
    border-bottom-left-radius: 4px;
}

.mdui-theme-layout-dark .assistant-card {
    background-color: var(--dark-card-bg);
    color: var(--text-dark);
}

.message-content p {
    margin: 0.5em 0;
}

.markdown-body pre {
    background-color: rgba(0, 0, 0, 0.05);
    padding: 12px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 8px 0;
}

.mdui-theme-layout-dark .markdown-body pre {
    background-color: rgba(255, 255, 255, 0.05);
}

.markdown-body code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    background-color: rgba(0, 0, 0, 0.05);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-size: 85%;
}

.mdui-theme-layout-dark .markdown-body code {
    background-color: rgba(255, 255, 255, 0.1);
}

.markdown-body blockquote {
    border-left: 4px solid #ddd;
    margin: 8px 0;
    padding-left: 16px;
    color: #777;
}

.mdui-theme-layout-dark .markdown-body blockquote {
    border-left-color: #555;
    color: #aaa;
}

.markdown-body table {
    border-collapse: collapse;
    width: 100%;
    margin: 8px 0;
    overflow-x: auto;
    display: block;
}

.markdown-body th,
.markdown-body td {
    border: 1px solid #ddd;
    padding: 8px 12px;
}

.mdui-theme-layout-dark .markdown-body th,
.mdui-theme-layout-dark .markdown-body td {
    border-color: #444;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.typing-dot {
    height: 8px;
    width: 8px;
    background-color: currentColor;
    border-radius: 50%;
    display: inline-block;
    animation: typing 1.4s infinite ease-in-out both;
}

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

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

@keyframes typing {

    0%,
    44% {
        transform: translateY(0);
    }

    28% {
        transform: translateY(-5px);
    }
}

/* 时间戳 */
.message-timestamp {
    font-size: 12px;
    color: #999;
    margin-top: 4px;
    text-align: right;
}

.mdui-theme-layout-dark .message-timestamp {
    color: #666;
}

/* 输入区域 */
.input-area {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.mdui-theme-layout-dark .input-area {
    background-color: var(--dark-card-bg);
}

/* 响应式设计 */
@media (max-width: 600px) {
    .chat-container {
        height: calc(100vh - 245px);
        padding: 8px;
        gap: 8px;
    }

    .message-wrapper {
        max-width: 95%;
    }

    .message-card {
        padding: 10px 14px;
        max-width: calc(100% - 44px);
    }

    .message-avatar {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    .message-content {
        font-size: 14px;
    }
}

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

.chat-container::-webkit-scrollbar-track {
    background: transparent;
}

.chat-container::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.mdui-theme-layout-dark .chat-container::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.2);
}