/* Excel对话编辑系统样式文件 - 现代化美化版本 */

/* CSS变量定义 - 现代化配色方案 */
:root {
    /* 主色调 */
    --primary-color: #4F46E5;
    --primary-hover: #4338CA;
    --primary-light: #EEF2FF;
    --primary-dark: #3730A3;

    /* 辅助色 */
    --success-color: #10B981;
    --success-light: #D1FAE5;
    --warning-color: #F59E0B;
    --warning-light: #FEF3C7;
    --error-color: #EF4444;
    --error-light: #FEE2E2;
    --info-color: #3B82F6;
    --info-light: #DBEAFE;

    /* 中性色 */
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
    --gradient-success: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --gradient-warm: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    --gradient-cool: linear-gradient(135deg, #3B82F6 0%, #1D4ED8 100%);

    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* 过渡 */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

/* 基础重置和全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    animation: fadeIn 0.6s ease-out;
}

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

/* 主容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 主标题样式 */
h1 {
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-2xl);
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    position: relative;
    animation: titleGlow 2s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    from {
        filter: drop-shadow(0 0 10px rgba(79, 70, 229, 0.3));
    }
    to {
        filter: drop-shadow(0 0 20px rgba(79, 70, 229, 0.5));
    }
}

h1::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    animation: underlineExpand 1s ease-out 0.5s both;
}

@keyframes underlineExpand {
    from {
        width: 0;
    }
    to {
        width: 60px;
    }
}

/* 卡片区域样式 */
.section {
    background: white;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
    animation: cardSlideIn 0.6s ease-out;
}

.section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

/* 区域标题样式 */
.section-header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-weight: 600;
    font-size: 1.1rem;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.section-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.3) 100%);
}

/* 标题按钮样式 */
.header-button {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.header-button:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.header-button:active {
    transform: translateY(0);
}

/* 新建对话按钮样式 */
.new-conversation-btn {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    white-space: nowrap;
}

.new-conversation-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.new-conversation-btn:active {
    transform: translateY(0);
}

.new-conversation-btn .btn-icon {
    font-size: 14px;
}

.new-conversation-btn .btn-text {
    font-size: 13px;
}

/* 内容区域样式 */
.section-content {
    padding: var(--spacing-xl);
    padding-bottom: 50px; /* 为固定输入框留出合适空间 */
}

/* 悬浮消息提示区域 */
.floating-message-area {
    position: fixed;
    bottom: 120px; /* 在输入框上方 */
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 800px;
    z-index: 1001; /* 比输入框层级更高 */
    pointer-events: none; /* 不阻挡鼠标事件 */
}

.floating-message-area .message {
    pointer-events: auto; /* 消息本身可以交互 */
    margin: var(--spacing-sm) 0;
    box-shadow: var(--shadow-lg);
}

/* 固定聊天输入框样式 - 悬浮在窗口底部 */
.fixed-bottom-chat-input {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 800px;
    background: transparent;
    padding: 0;
    border: none;
    border-radius: 0;
    z-index: 1000;
    box-shadow: none;
    box-sizing: border-box;
    backdrop-filter: none;
    animation: none;
    /* 确保悬浮效果 */
    margin: 0;
    isolation: isolate;
    transition: none;
}

/* 移除悬浮动画和效果 */

/* 聊天输入容器 */
.chat-input-container {
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: 0;
    gap: 0;
}

.chat-input-wrapper {
    flex: 1;
    position: relative;
}

/* 聊天输入框样式 */
.chat-textarea {
    width: 100%;
    padding: var(--spacing-md) 60px var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    font-size: 15px;
    line-height: 1.5;
    resize: none;
    outline: none;
    background: rgba(255, 255, 255, 0.95);
    min-height: 24px;
    max-height: 120px;
    overflow-y: auto;
    font-family: inherit;
    transition: all var(--transition-normal);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 16px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(20px);
}

.chat-textarea:focus {
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1), 0 12px 40px rgba(0, 0, 0, 0.15), 0 4px 20px rgba(0, 0, 0, 0.1);
}

.chat-textarea::placeholder {
    color: var(--gray-400);
    font-style: italic;
}

/* 发送按钮样式 */
.send-button {
    position: absolute;
    right: var(--spacing-sm);
    bottom: var(--spacing-sm);
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: 16px;
    box-shadow: var(--shadow-md);
}

.send-button:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-lg);
}

.send-button:active {
    transform: translateY(0) scale(0.98);
}

.send-button:disabled {
    background: var(--gray-300);
    cursor: not-allowed;
    transform: none;
    box-shadow: var(--shadow-sm);
}

/* 发送箭头图标 */
.send-arrow {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 7px solid currentColor;
    transform: rotate(0deg);
    transition: transform var(--transition-fast);
}

.send-button:hover .send-arrow {
    transform: scale(1.1);
}

/* 加载动画样式 */
.loading-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: modernSpin 0.8s linear infinite;
    display: inline-block;
}

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

/* 现代化消息样式 */
.message {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin: var(--spacing-md) 0;
    border: 1px solid transparent;
    font-weight: 500;
    animation: messageSlideIn 0.3s ease-out;
}

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

.message.success {
    background: var(--success-light);
    border-color: var(--success-color);
    color: #065f46;
}

.message.error {
    background: var(--error-light);
    border-color: var(--error-color);
    color: #991b1b;
}

.message.info {
    background: var(--info-light);
    border-color: var(--info-color);
    color: #1e40af;
}

.message.warning {
    background: var(--warning-light);
    border-color: var(--warning-color);
    color: #92400e;
}

/* 网格布局样式 */
.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

/* ==================== 文件浏览器提示动画样式 ==================== */

/* 提示遮罩层 */
.file-browser-tip-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(3px);
    z-index: 10000;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease-out;
}

.file-browser-tip-overlay.show {
    opacity: 1;
}

/* 提示框容器 */
.file-browser-tip-box {
    position: absolute;
    top: 80px;
    left: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.4),
                0 0 0 4px rgba(255, 255, 255, 0.1);
    max-width: 300px;
    animation: tipBounceIn 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
}

/* 跳动入场动画 */
@keyframes tipBounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(-50px);
    }
    50% {
        transform: scale(1.05) translateY(0);
    }
    70% {
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* 箭头指示器 - 指向文件浏览器按钮 */
.tip-arrow {
    position: absolute;
    top: -30px;
    left: 30px;
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-bottom: 30px solid #667eea;
    animation: arrowBounce 1s ease-in-out infinite;
}

@keyframes arrowBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* 提示内容容器 */
.tip-content {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

/* 提示图标 */
.tip-icon {
    font-size: 36px;
    animation: iconBounce 1.5s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes iconBounce {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
}

/* 闪烁的小星星装饰 */
.tip-sparkle {
    position: absolute;
    font-size: 16px;
    opacity: 0;
    pointer-events: none;
}

.tip-sparkle-1 {
    top: 10px;
    right: 15px;
    animation: sparkleFloat 2s ease-in-out infinite;
}

.tip-sparkle-2 {
    top: 50%;
    right: 10px;
    animation: sparkleFloat 2.3s ease-in-out infinite 0.5s;
}

.tip-sparkle-3 {
    bottom: 15px;
    right: 20px;
    animation: sparkleFloat 2.5s ease-in-out infinite 1s;
}

@keyframes sparkleFloat {
    0%, 100% {
        opacity: 0;
        transform: translateY(0) scale(0.5);
    }
    50% {
        opacity: 1;
        transform: translateY(-10px) scale(1);
    }
}

/* 提示文本容器 */
.tip-text {
    flex: 1;
}

/* 提示标题 */
.tip-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 提示消息 */
.tip-message {
    font-size: 15px;
    line-height: 1.5;
    opacity: 0.95;
}

/* 知道了按钮 */
.tip-close {
    width: 100%;
    padding: 12px;
    background: white;
    color: #667eea;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.tip-close::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.tip-close:hover::before {
    width: 300px;
    height: 300px;
}

.tip-close:hover {
    background: #f8f9ff;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.3);
}

.tip-close:active {
    transform: translateY(-1px) scale(0.98);
    transition: all 0.1s ease;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .file-browser-tip-box {
        top: 60px;
        left: 10px;
        right: 10px;
        max-width: calc(100% - 20px);
        padding: 16px;
    }

    .tip-arrow {
        left: 20px;
    }

    .tip-icon {
        font-size: 28px;
    }

    .tip-title {
        font-size: 16px;
    }

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

/* 小屏幕优化 */
@media (max-width: 480px) {
    .file-browser-tip-box {
        top: 70px;
    }
    
    .tip-content {
        gap: 10px;
    }
}

/* 闪烁高亮效果 - 应用到文件浏览器按钮 */
@keyframes highlightPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(102, 126, 234, 0);
    }
}

/* 当显示提示时，给文件浏览器按钮添加高亮效果 */
.file-browser-toggle.highlight {
    animation: highlightPulse 1.5s ease-out infinite;
    z-index: 9999;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .container {
        padding: var(--spacing-md);
    }

    h1 {
        font-size: 2rem;
    }

    .fixed-bottom-chat-input {
        width: 95%;
        bottom: 16px;
    }

    /* 智能提示响应式样式 */
    .suggestions-container {
        flex-direction: column;
    }

    .suggestion-item {
        max-width: 100%;
        justify-content: center;
        text-align: center;
    }

    .smart-suggestions {
        padding: var(--spacing-md);
    }
}

/* 文件信息卡片样式 */
.file-info {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 0;
    margin: var(--spacing-md) 0;
    font-size: 13px;
    color: var(--gray-600);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.file-info:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--gray-300);
}

/* 文件信息标题 */
.file-info-header {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition-fast);
    user-select: none;
    border-bottom: 1px solid var(--gray-200);
}

.file-info-header:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.file-info-header.active {
    background: var(--primary-light);
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* 折叠图标 */
.file-info-toggle {
    font-size: 12px;
    transition: transform var(--transition-normal);
    color: var(--gray-500);
}

.file-info-toggle.expanded {
    transform: rotate(180deg);
    color: var(--primary-color);
}

/* 文件信息内容 */
.file-info-content {
    padding: var(--spacing-lg);
    display: none;
    background: white;
    animation: contentSlideDown 0.3s ease-out;
}

@keyframes contentSlideDown {
    from {
        opacity: 0;
        max-height: 0;
        padding-top: 0;
        padding-bottom: 0;
    }
    to {
        opacity: 1;
        max-height: 500px;
        padding-top: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
}

.file-info-content.show {
    display: block;
}

/* 文件信息标题样式 */
.file-info h4 {
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    font-weight: 600;
}

/* 工作表信息样式 */
.sheet-info {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    font-size: 12px;
    color: var(--gray-500);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary-color);
}

/* 智能提示组件样式 */
.smart-suggestions {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    animation: slideInUp 0.5s ease-out;
}

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

.smart-suggestions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.smart-suggestions:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--gray-300);
    transform: translateY(-1px);
}

.smart-suggestions-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    color: var(--gray-700);
    font-weight: 600;
    font-size: 1rem;
}

.smart-suggestions-header .icon {
    margin-right: var(--spacing-sm);
    font-size: 1.2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.suggestions-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    align-items: flex-start;
    justify-content: flex-start;
}

.suggestion-item {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
    color: var(--gray-700);
    display: inline-flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    min-width: 120px;
    max-width: 400px;
    text-overflow: ellipsis;
    animation: fadeInScale 0.4s ease-out forwards;
    opacity: 0;
    transform: scale(0.9);
    flex-shrink: 0;
    box-sizing: border-box;
}

/* 建议文本样式 */
.suggestion-item .suggestion-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 长文本时的换行样式 */
.suggestion-item.multiline {
    white-space: normal;
    border-radius: var(--radius-md);
    min-height: 36px;
    height: auto;
    align-items: center;
    justify-content: center;
    text-align: center;
    line-height: 1.2;
    padding: var(--spacing-sm) var(--spacing-md);
}

.suggestion-item.multiline .suggestion-text {
    text-overflow: unset;
    overflow: visible;
}

@keyframes fadeInScale {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.suggestion-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
}

.suggestion-item:hover::before {
    left: 100%;
}

.suggestion-item:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.suggestion-item:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.suggestion-item .suggestion-icon {
    margin-right: var(--spacing-xs);
    font-size: 0.8rem;
    opacity: 0.7;
}

.suggestions-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    color: var(--gray-500);
    font-size: 0.9rem;
}

.suggestions-loading .loading-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--gray-300);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: var(--spacing-sm);
}

.suggestions-error {
    color: var(--error-color);
    font-size: 0.9rem;
    text-align: center;
    padding: var(--spacing-md);
    background: var(--error-light);
    border-radius: var(--radius-md);
    border: 1px solid var(--error-color);
}

/* 聊天框样式 - 简化版本，融入section容器 */
.chat-box {
    height: 800px;
    overflow-y: auto;
    background: transparent; /* 使用透明背景，不与section重复 */
    padding: 0; /* 移除内边距，使用section-content的边距 */
    border: none; /* 移除边框，使用section的边框 */
    border-radius: 0; /* 移除圆角，使用section的圆角 */
    box-shadow: none; /* 移除阴影，使用section的阴影 */
    margin: 0; /* 移除外边距 */
    position: relative;
    /* 关闭CSS层面的平滑滚动，交由JS按需控制，减少卡顿 */
    scroll-behavior: auto;
}

/* 聊天消息样式 */
.chat-message {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    line-height: 1.6;
    box-shadow: var(--shadow-sm);
    position: relative;
    animation: messageAppear 0.5s ease-out;
    border: 1px solid transparent;
}

@keyframes messageAppear {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 用户消息样式 */
.chat-message.user {
    background: linear-gradient(135deg, var(--primary-light) 0%, #E0E7FF 100%);
    border-color: var(--primary-color);
    margin-left: 60px;
    border-left: 4px solid var(--primary-color);
}

.chat-message.user::before {
    content: '👤';
    position: absolute;
    left: -50px;
    top: var(--spacing-lg);
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

/* AI助手消息样式 */
.chat-message.assistant {
    background: linear-gradient(135deg, white 0%, var(--gray-50) 100%);
    border-color: var(--success-color);
    margin-right: 60px;
    border-left: 4px solid var(--success-color);
}

.chat-message.assistant::before {
    content: '🤖';
    position: absolute;
    right: -50px;
    top: var(--spacing-lg);
    width: 32px;
    height: 32px;
    background: var(--gradient-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

/* 代码块样式 */
.code-block {
    background: var(--gray-900);
    color: var(--gray-100);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 13px;
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    position: relative;
    box-shadow: var(--shadow-md);
}

.code-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* 工具类 */
.hidden {
    display: none !important;
}

/* 现代化加载动画 */
.loading {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--gray-200);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: modernSpin 1s linear infinite;
}

/* Tab导航样式 */
.tab-container {
    margin-bottom: var(--spacing-xl);
}

.tab-buttons {
    display: flex;
    background: white;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    border-bottom: none;
}

.tab-button {
    flex: 1;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--gray-100);
    border: none;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-600);
    transition: all var(--transition-normal);
    border-bottom: 3px solid transparent;
    position: relative;
    overflow: hidden;
}

.tab-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
}

.tab-button:hover::before {
    left: 100%;
}

.tab-button.active {
    background: var(--gradient-primary);
    color: white;
    border-bottom: 3px solid var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.tab-button:not(.active):hover {
    background: var(--gray-200);
    color: var(--gray-800);
    transform: translateY(-1px);
}

/* Tab内容样式 */
.tab-content {
    display: none;
    background: white;
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 0;
    border: 1px solid var(--gray-200);
    border-top: none;
    animation: tabContentSlide 0.3s ease-out;
}

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

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

/* Tab内容中的section样式简化，避免重复嵌套效果 */
.tab-content .section {
    background: transparent; /* 使用透明背景 */
    border: none; /* 移除边框 */
    box-shadow: none; /* 移除阴影 */
    margin-bottom: 0; /* 移除外边距 */
}

.tab-content .section:hover {
    transform: none; /* 移除悬停效果 */
    box-shadow: none;
}

/* 下载链接样式 */
.download-link {
    background: var(--gradient-success);
    color: white !important;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-xs) 0;
    transition: all var(--transition-fast);
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.download-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.download-link::before {
    content: '📥';
    font-size: 14px;
}

/* 对话历史卡片样式 */
.conversation-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.conversation-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.conversation-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

/* 对话卡片标题区域 */
.conversation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.conversation-title {
    font-weight: 600;
    color: var(--gray-800);
    font-size: 16px;
}

/* 对话元信息 */
.conversation-meta {
    color: var(--gray-500);
    font-size: 13px;
    margin-bottom: var(--spacing-md);
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.conversation-meta::before {
    content: '🕒';
    margin-right: var(--spacing-xs);
}

/* 对话操作按钮组 */
.conversation-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* 小按钮样式 */
.btn-small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 12px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* 主要按钮 */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* 次要按钮 */
.btn-secondary {
    background: var(--gray-500);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--gray-600);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* 警告按钮 */
.btn-warning {
    background: var(--gradient-warm);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-warning:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* 空状态样式 */
.empty-conversations {
    text-align: center;
    color: var(--gray-500);
    padding: var(--spacing-2xl) var(--spacing-xl);
    font-style: italic;
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    border: 2px dashed var(--gray-300);
    margin: var(--spacing-xl) 0;
}

.empty-conversations::before {
    content: '💬';
    display: block;
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* 当前对话徽章 */
.current-conversation-badge {
    background: var(--gradient-success);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: var(--shadow-sm);
    }
    50% {
        transform: scale(1.05);
        box-shadow: var(--shadow-md);
    }
}

/* 思考过程样式 */
.thinking-process {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    margin: var(--spacing-md) 0;
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.thinking-process:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

/* 思考过程标题 */
.thinking-header {
    color: var(--gray-600);
    font-size: 14px;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gray-100);
    border-bottom: 1px solid var(--gray-200);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
    font-weight: 500;
}

.thinking-header:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.thinking-header.active {
    background: var(--primary-light);
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.thinking-header::before {
    content: '🧠';
    margin-right: var(--spacing-sm);
}

/* 思考时间显示 */
.thinking-time {
    font-size: 11px;
    opacity: 0.8;
    color: var(--gray-500);
}

/* 折叠切换图标 */
.thinking-toggle {
    font-size: 12px;
    transition: transform var(--transition-normal);
    color: var(--gray-500);
}

.thinking-toggle.expanded {
    transform: rotate(180deg);
    color: var(--primary-color);
}

/* 思考内容区域 */
.thinking-content {
    display: none;
    padding: var(--spacing-lg);
    background: white;
    max-height: 400px;
    overflow-y: auto;
    animation: thinkingContentSlide 0.3s ease-out;
}

@keyframes thinkingContentSlide {
    from {
        opacity: 0;
        max-height: 0;
        padding-top: 0;
        padding-bottom: 0;
    }
    to {
        opacity: 1;
        max-height: 400px;
        padding-top: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
}

.thinking-content.show {
    display: block;
}

/* 思考加载文本 */
.thinking-spinner-text {
    color: var(--gray-600);
    font-style: italic;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* 思考步骤样式 */
.thinking-step {
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-start;
    font-size: 13px;
    line-height: 1.5;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.thinking-step:hover {
    transform: translateX(2px);
}

/* 等待状态 */
.thinking-step.pending {
    background: var(--warning-light);
    border-left: 4px solid var(--warning-color);
    color: #92400e;
}

/* 处理中状态 */
.thinking-step.processing {
    background: var(--info-light);
    border-left: 4px solid var(--info-color);
    color: #1e40af;
    animation: processingPulse 2s ease-in-out infinite;
}

@keyframes processingPulse {
    0%, 100% {
        background: var(--info-light);
    }
    50% {
        background: #BFDBFE;
    }
}

/* 成功状态 */
.thinking-step.success {
    background: var(--success-light);
    border-left: 4px solid var(--success-color);
    color: #065f46;
}

/* 错误状态 */
.thinking-step.error {
    background: var(--error-light);
    border-left: 4px solid var(--error-color);
    color: #991b1b;
}

/* 步骤图标 */
.thinking-step-icon {
    margin-right: var(--spacing-sm);
    font-weight: bold;
    flex-shrink: 0;
    font-size: 14px;
}

/* 步骤内容 */
.thinking-step-content {
    flex: 1;
}

/* 思考加载动画 */
.thinking-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--gray-200);
    border-top: 2px solid var(--info-color);
    border-radius: 50%;
    animation: modernSpin 1s linear infinite;
}

/* 思考代码预览 */
.thinking-code-preview {
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-sm);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 12px;
    max-height: 150px;
    overflow-y: auto;
    white-space: pre-wrap;
    position: relative;
}

.thinking-code-preview::before {
    content: 'Code Preview';
    position: absolute;
    top: 4px;
    right: 8px;
    font-size: 10px;
    color: var(--gray-500);
    background: var(--gray-200);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

/* 思考输出结果 */
.thinking-output {
    background: var(--gray-900);
    color: var(--gray-100);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-sm);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 12px;
    max-height: 120px;
    overflow-y: auto;
    white-space: pre-wrap;
    position: relative;
    border: 1px solid var(--gray-700);
}

.thinking-output::before {
    content: 'Output';
    position: absolute;
    top: 4px;
    right: 8px;
    font-size: 10px;
    color: var(--gray-400);
    background: var(--gray-800);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

/* Markdown内容样式 */
.markdown-content {
    line-height: 1.7;
    color: var(--gray-800);
}

/* Markdown标题 */
.markdown-content h1, .markdown-content h2, .markdown-content h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
    font-weight: 600;
}

.markdown-content h1 {
    font-size: 1.875rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.markdown-content h2 {
    font-size: 1.5rem;
    border-bottom: 1px solid var(--gray-300);
    padding-bottom: var(--spacing-xs);
}

.markdown-content h3 {
    font-size: 1.25rem;
    color: var(--primary-color);
}

/* Markdown段落和列表 */
.markdown-content p {
    margin-bottom: var(--spacing-md);
}

.markdown-content ul, .markdown-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

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

/* Markdown引用块 */
.markdown-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    background: var(--primary-light);
    padding: var(--spacing-lg);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    font-style: italic;
    position: relative;
}

.markdown-content blockquote::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 10px;
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.3;
}

/* Markdown行内代码 */
.markdown-content code {
    background: var(--gray-100);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875em;
    font-weight: 500;
}

/* Markdown代码块 */
.markdown-content pre {
    background: var(--gray-900);
    color: var(--gray-100);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    position: relative;
}

.markdown-content pre::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.markdown-content pre code {
    background: none;
    color: inherit;
    padding: 0;
    border-radius: 0;
    font-size: 0.875em;
}

/* Markdown表格 */
.markdown-content table {
    border-collapse: collapse;
    width: 100%;
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.markdown-content th, .markdown-content td {
    border: 1px solid var(--gray-200);
    padding: var(--spacing-md);
    text-align: left;
}

.markdown-content th {
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.markdown-content tr:nth-child(even) {
    background: var(--gray-50);
}

.markdown-content tr:hover {
    background: var(--primary-light);
}

/* Markdown链接 */
.markdown-content a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-fast);
}

.markdown-content a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.markdown-content a:hover {
    color: var(--primary-hover);
}

.markdown-content a:hover::after {
    width: 100%;
}

/* Markdown分割线 */
.markdown-content hr {
    border: none;
    height: 2px;
    background: var(--gradient-primary);
    margin: var(--spacing-2xl) 0;
    border-radius: var(--radius-full);
}

/* Markdown文本样式 */
.markdown-content strong {
    font-weight: 600;
    color: var(--gray-900);
}

.markdown-content em {
    font-style: italic;
    color: var(--gray-700);
}

.markdown-content del {
    text-decoration: line-through;
    color: var(--gray-500);
    opacity: 0.8;
}

/* Markdown图片 */
.markdown-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.markdown-content img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

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

/* 标签样式 */
label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--gray-700);
    font-size: 14px;
}

/* 输入框样式 */
input[type="text"], input[type="password"], textarea:not(.chat-textarea), select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 14px;
    transition: all var(--transition-normal);
    background: var(--gray-50);
    font-family: inherit;
}

input[type="text"]:focus, input[type="password"]:focus, textarea:not(.chat-textarea):focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    transform: translateY(-1px);
}

/* 文件输入框样式 */
input[type="file"] {
    width: 100%;
    padding: var(--spacing-lg);
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    background: var(--gray-50);
    transition: all var(--transition-normal);
    cursor: pointer;
}

input[type="file"]:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

/* 通用按钮样式 */
button:not(.send-button):not(.tab-button):not(.header-button):not(.btn-small):not(.guide-tab) {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

button:not(.send-button):not(.tab-button):not(.header-button):not(.btn-small):not(.guide-tab)::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

button:not(.send-button):not(.tab-button):not(.header-button):not(.btn-small):not(.guide-tab):hover::before {
    left: 100%;
}

button:not(.send-button):not(.tab-button):not(.header-button):not(.btn-small):not(.guide-tab):hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

button:not(.send-button):not(.tab-button):not(.header-button):not(.btn-small):not(.guide-tab):active {
    transform: translateY(0);
}

button:not(.send-button):not(.tab-button):not(.header-button):not(.btn-small):not(.guide-tab):disabled {
    background: var(--gray-300);
    cursor: not-allowed;
    transform: none;
    box-shadow: var(--shadow-sm);
}

/* 成功按钮 */
.btn-success {
    background: var(--gradient-success) !important;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* 危险按钮 */
.btn-danger {
    background: linear-gradient(135deg, var(--error-color) 0%, #DC2626 100%) !important;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* 上传按钮 */
.btn-upload {
    background: var(--gradient-success);
    color: white;
    border: none;
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--radius-xl);
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
    min-width: 220px;
    justify-content: center;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-upload::before {
    content: '📤';
    font-size: 18px;
}

.btn-upload:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* 用户状态区域样式 - 右上角固定定位 */
.user-status-area {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 900;
}

/* 为子元素添加动画，避免父容器闪烁 */
.user-status-area > div {
    animation: statusSlideIn 0.6s ease-out;
}

@keyframes statusSlideIn {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 认证提示区域 - 右上角紧凑版 */
.auth-prompt {
    background: var(--gradient-primary);
    color: white;
    padding: 12px 16px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
    position: relative;
    overflow: hidden;
    min-width: 200px;
    max-width: 280px;
}

.auth-prompt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.5) 50%, transparent 100%);
}

/* 认证按钮组 */
.auth-buttons {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 8px;
}

/* 认证按钮样式 */
.auth-btn {
    padding: 6px 12px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-width: 70px;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
    font-size: 12px;
}

/* 登录按钮 */
.login-btn {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.login-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
}

.login-btn::before {
    content: '🔑';
    font-size: 10px;
}

/* 注册按钮 */
.register-btn {
    background: white;
    color: var(--primary-color);
    border: 1.5px solid white;
}

.register-btn:hover {
    background: var(--gray-100);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
}

.register-btn::before {
    content: '✨';
    font-size: 10px;
}

/* 试用信息 */
.trial-info {
    font-size: 11px;
    opacity: 0.95;
    font-weight: 500;
}

/* 响应式设计增强 */
@media (max-width: 768px) {
    .user-status-area {
        top: 10px;
        right: 10px;
        left: 10px;
    }

    .auth-prompt {
        min-width: auto;
        max-width: none;
        padding: 10px 12px;
    }

    .auth-buttons {
        gap: 6px;
    }

    .auth-btn {
        padding: 5px 10px;
        font-size: 11px;
        min-width: 60px;
    }

    .trial-info {
        font-size: 10px;
    }

    .user-status {
        min-width: auto;
        max-width: none;
        padding: 8px 12px;
    }

    .user-avatar {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }

    .user-info .nickname {
        font-size: 12px;
    }

    .user-info .quota {
        font-size: 10px;
    }

    .logout-btn {
        padding: 4px 8px;
        font-size: 10px;
    }

    .chat-message.user, .chat-message.assistant {
        margin-left: 0;
        margin-right: 0;
    }

    .chat-message.user::before, .chat-message.assistant::before {
        display: none;
    }

    .section-content {
        padding: var(--spacing-lg);
        padding-bottom: 140px; /* 移动端稍微多一点空间 */
    }

    .chat-box {
        height: 600px; /* 移动端使用稍小的高度 */
    }
}

/* Excel预览样式 */
.excel-preview {
    margin-top: 20px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: white;
    box-shadow: var(--shadow-md);
    animation: slideInUp 0.3s ease-out;
}

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

.excel-preview.hidden {
    display: none;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    cursor: pointer;
    user-select: none;
    transition: background-color var(--transition-fast);
}

.preview-header:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

.preview-toggle-icon {
    font-size: 12px;
    transition: transform var(--transition-fast);
    font-family: monospace;
    font-weight: bold;
}

.preview-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.preview-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: white;
    padding: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.preview-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.preview-content {
    padding: var(--spacing-xl);
    max-height: 500px;
    overflow-y: auto;
    transition: max-height var(--transition-fast), opacity var(--transition-fast), padding var(--transition-fast);
}

/* 折叠状态样式 */
.excel-preview.collapsed .preview-content {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0;
    overflow: hidden;
}

.excel-preview.collapsed .preview-header {
    border-radius: var(--radius-lg);
}

.excel-preview.collapsed .preview-toggle-icon {
    transform: rotate(-90deg);
}

.preview-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--gray-100);
    padding-bottom: var(--spacing-md);
}

.preview-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
    color: var(--gray-700);
}

.preview-tab:hover {
    background: var(--gray-100);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.preview-tab.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.preview-table-container {
    max-height: 400px;
    overflow: auto;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: white;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.preview-table th {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-sm);
    text-align: left;
    border-bottom: 2px solid var(--primary-color);
    border-right: 1px solid rgba(255,255,255,0.2);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 1;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.preview-table td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-100);
    border-right: 1px solid var(--gray-100);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    background: white;
    transition: background-color var(--transition-fast);
}

.preview-table tr:nth-child(even) td {
    background: var(--gray-50);
}

.preview-table tr:hover td {
    background: var(--primary-light);
}

.preview-info {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    font-size: 12px;
    color: var(--gray-600);
    border-left: 4px solid var(--primary-color);
}

/* 响应式Excel预览 */
@media (max-width: 768px) {
    .preview-content {
        padding: var(--spacing-lg);
    }

    .preview-table-container {
        max-height: 300px;
    }

    .preview-table th,
    .preview-table td {
        padding: 6px 4px;
        font-size: 11px;
        max-width: 120px;
    }

    .preview-tabs {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }

    .preview-tab {
        padding: 6px 12px;
        font-size: 12px;
    }

    .preview-header {
        padding: var(--spacing-md);
    }

    .preview-header h3 {
        font-size: 14px;
    }
}

/* 消息内的Excel预览样式 */
.excel-preview-section {
    margin-top: 15px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: white;
    box-shadow: var(--shadow-sm);
    animation: fadeIn 0.3s ease-out;
}

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

.excel-preview-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    cursor: pointer;
    user-select: none;
    transition: all var(--transition-fast);
    border-bottom: 1px solid var(--gray-200);
}

.excel-preview-header:hover {
    background: linear-gradient(135deg, #e8ecf1 0%, #b8c6db 100%);
}

.excel-preview-header.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.excel-preview-icon {
    font-size: 16px;
}

.excel-preview-title {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
}

.excel-preview-toggle {
    font-size: 12px;
    font-family: monospace;
    font-weight: bold;
    transition: transform var(--transition-fast);
}

.excel-preview-toggle.expanded {
    transform: rotate(0deg);
}

.excel-preview-toggle:not(.expanded) {
    transform: rotate(-90deg);
}

.excel-preview-content {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    padding: 0;
    transition: max-height var(--transition-fast), opacity var(--transition-fast), padding var(--transition-fast);
}

.excel-preview-content.show {
    max-height: 500px;
    overflow-y: auto;
    opacity: 1;
    padding: 16px;
}

.excel-preview-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    border-bottom: 2px solid var(--gray-100);
    padding-bottom: 8px;
    flex-wrap: wrap;
}

.excel-preview-table {
    max-height: 400px;
    overflow: auto;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: white;
}

/* 响应式：消息内的Excel预览 */
@media (max-width: 768px) {
    .excel-preview-header {
        padding: 10px 12px;
    }
    
    .excel-preview-title {
        font-size: 13px;
    }
    
    .excel-preview-content.show {
        padding: 12px;
        max-height: 350px;
    }
    
    .excel-preview-table {
        max-height: 300px;
    }
}

/* ==================== 用户指南面板样式 ==================== */

/* 用户指南折叠按钮 - 全新设计 */
.user-guide-toggle {
    position: fixed !important;
    top: 50% !important;
    right: 0 !important;
    left: auto !important;
    transform: translateY(-50%) !important;
    background: linear-gradient(135deg, #FF6B35 0%, #F7931E 50%, #FFD23F 100%) !important;
    color: white !important;
    border: none !important;
    padding: var(--spacing-lg) var(--spacing-md) !important;
    border-radius: var(--radius-xl) 0 0 var(--radius-xl) !important;
    cursor: pointer !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    z-index: 100000 !important;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4), 0 4px 10px rgba(0, 0, 0, 0.1) !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: var(--spacing-sm) !important;
    writing-mode: vertical-rl !important;
    text-orientation: mixed !important;
    min-height: 140px !important;
    justify-content: center !important;
    overflow: hidden !important;
}

/* 添加闪烁光效 */
.user-guide-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s infinite;
    z-index: 1;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 脉冲动画 */
.user-guide-toggle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.3) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    animation: pulse 2s ease-in-out infinite;
    z-index: -1;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.7;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.3;
    }
}

.user-guide-toggle:hover {
    background: linear-gradient(135deg, #FF8A65 0%, #FFB74D 50%, #FFF176 100%) !important;
    transform: translateY(-50%) translateX(-8px) scale(1.05) !important;
    box-shadow: 0 12px 35px rgba(255, 107, 53, 0.6), 0 6px 15px rgba(0, 0, 0, 0.15) !important;
    animation: bounce 0.6s ease-in-out !important;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(-50%) translateX(-8px) scale(1.05);
    }
    40% {
        transform: translateY(-50%) translateX(-8px) scale(1.08);
    }
    60% {
        transform: translateY(-50%) translateX(-8px) scale(1.06);
    }
}

.user-guide-toggle .toggle-icon {
    font-size: 20px !important;
    margin-bottom: var(--spacing-sm) !important;
    position: relative !important;
    z-index: 2 !important;
    animation: iconFloat 3s ease-in-out infinite !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2) !important;
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.user-guide-toggle .toggle-text {
    font-size: 13px !important;
    letter-spacing: 1px !important;
    position: relative !important;
    z-index: 2 !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2) !important;
    font-weight: 700 !important;
}

/* 用户指南侧边栏 */
.user-guide-sidebar {
    position: fixed;
    top: 0;
    right: -350px; /* 初始隐藏 */
    width: 350px;
    height: 100vh;
    background: white;
    box-shadow: var(--shadow-xl);
    z-index: 100001;
    transition: right var(--transition-normal);
    border-left: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
}

.user-guide-sidebar.open {
    right: 0;
}

/* 用户指南头部 */
.user-guide-header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.user-guide-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.3) 100%);
}

.user-guide-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.user-guide-header .close-btn {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.user-guide-header .close-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

/* 用户指南内容区域 */
.user-guide-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* 标签页导航 */
.guide-tabs {
    display: flex;
    flex-direction: column;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-sm);
    gap: var(--spacing-xs);
}

.guide-tab {
    background: white;
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all var(--transition-fast);
    text-align: left;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.guide-tab:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateX(2px);
}

.guide-tab.active {
    background: #4F46E5 !important;
    border-color: #4F46E5 !important;
    color: white !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06) !important;
    transform: translateX(4px) !important;
    font-weight: 600 !important;
}

/* 标签页内容 */
.guide-tab-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.tab-panel {
    display: none;
    animation: fadeInUp 0.3s ease-out;
}

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

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

/* 指南卡片容器 */
.guide-cards-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* 指南卡片样式 */
.guide-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.guide-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
    transform-origin: left;
}

.guide-card:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.guide-card:hover::before {
    transform: scaleX(1);
}

.guide-card:active {
    transform: translateY(-1px) scale(1.01);
}

/* 卡片头部 */
.guide-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.guide-card-icon {
    font-size: 20px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border-radius: var(--radius-md);
    color: var(--primary-color);
}

.guide-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
    margin: 0;
}

/* 卡片描述 */
.guide-card-description {
    font-size: 12px;
    color: var(--gray-600);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
}

/* 卡片示例 */
.guide-card-example {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    font-size: 11px;
    color: var(--gray-700);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    position: relative;
    overflow: hidden;
}

.guide-card-example::before {
    content: '💬';
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    font-size: 10px;
    opacity: 0.5;
}

/* 复制提示 */
.copy-tooltip {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--success-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 11px;
    font-weight: 500;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
    z-index: 10;
}

.copy-tooltip.show {
    opacity: 1;
    animation: copyPulse 0.6s ease-out;
}

@keyframes copyPulse {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

/* 涟漪效果 */
.guide-card {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(79, 70, 229, 0.3);
    transform: scale(0);
    animation: rippleEffect 0.6s linear;
    pointer-events: none;
}

@keyframes rippleEffect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}





@keyframes wiggle {
    0%, 100% { transform: scale(1.1) rotate(2deg); }
    25% { transform: scale(1.1) rotate(-1deg); }
    75% { transform: scale(1.1) rotate(3deg); }
}

/* 呼吸灯效果 - 让按钮更显眼 */
.user-guide-toggle {
    animation: breathe 3s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% {
        box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4), 0 4px 10px rgba(0, 0, 0, 0.1);
    }
    50% {
        box-shadow: 0 12px 35px rgba(255, 107, 53, 0.7), 0 6px 15px rgba(0, 0, 0, 0.15);
    }
}

/* 首次加载时的注意力动画 */
.user-guide-toggle.first-load {
    animation: attention 2s ease-in-out 3, breathe 3s ease-in-out infinite 6s;
}

@keyframes attention {
    0%, 100% { transform: translateY(-50%) scale(1); }
    25% { transform: translateY(-50%) scale(1.1); }
    50% { transform: translateY(-50%) scale(1.05); }
    75% { transform: translateY(-50%) scale(1.08); }
}



/* 响应式设计 */
@media (max-width: 768px) {
    .user-guide-toggle {
        display: none; /* 移动端隐藏右侧按钮 */
    }



    .user-guide-sidebar {
        width: 100%;
        right: -100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
    }

    .user-guide-sidebar.open {
        right: 0;
    }

    .guide-tabs {
        flex-direction: row;
        overflow-x: auto;
        padding: var(--spacing-sm);
        gap: var(--spacing-xs);
    }

    .guide-tab {
        white-space: nowrap;
        min-width: auto;
        flex-shrink: 0;
        font-size: 11px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .guide-tab.active {
        background: #4F46E5 !important;
        border-color: #4F46E5 !important;
        color: white !important;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06) !important;
        transform: translateX(2px) !important;
        font-weight: 600 !important;
    }

    .guide-card {
        padding: var(--spacing-md);
    }

    .guide-card-icon {
        width: 28px;
        height: 28px;
        font-size: 16px;
    }

    .guide-card-title {
        font-size: 13px;
    }

    .guide-card-description {
        font-size: 11px;
    }
}

/* 主内容区域适配 */
.main-content.guide-open {
    margin-right: 350px;
    transition: margin-right var(--transition-normal);
}

@media (max-width: 768px) {
    .main-content.guide-open {
        margin-right: 0;
    }
}

/* 加载状态和优化 */
.user-guide-sidebar {
    opacity: 0;
    transition: opacity var(--transition-normal), right var(--transition-normal);
}

.user-guide-sidebar.loaded {
    opacity: 1;
}

/* 性能优化：减少重绘 */
.guide-card {
    will-change: transform;
}

.guide-card:hover {
    will-change: auto;
}

/* 无障碍访问优化 */
.user-guide-toggle:focus,
.guide-tab:focus,
.guide-card:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 键盘导航支持 */
.guide-card:focus {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg), 0 0 0 2px rgba(79, 70, 229, 0.2);
}

/* 错误状态样式 */
.guide-error {
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}