/* AI市场页面样式 - 华为云风格 */

/* CSS变量定义 */
:root {
    /* 断点变量 */
    --breakpoint-xs: 399px;
    --breakpoint-sm: 575px;
    --breakpoint-md: 767px;
    --breakpoint-lg: 991px;
    --breakpoint-xl: 1200px;
    
    /* 颜色变量 */
    --ai-primary: #1a73e8;
    --ai-primary-light: #4285f4;
    --ai-primary-dark: #0d47a1;
    --ai-secondary: #f5f5f5;
    --ai-text-primary: #333;
    --ai-text-secondary: #666;
    --ai-text-light: #999;
    --ai-border: #e0e0e0;
    --ai-bg-light: #fff;
    --ai-bg-dark: #f8f9fa;
    
    /* 交互效果变量 */
    --card-shadow-base: 0 4px 12px rgb(0 0 0 / 6%);
    --card-shadow-hover: 0 12px 20px rgb(0 0 0 / 8%);
    --card-shadow-active: 0 8px 16px rgb(0 0 0 / 8%);
    --card-transform-hover: translateY(-4px);
    --card-transform-active: translateY(-2px);
    --card-transform-scale-hover: scale(1.05);
    --card-transform-scale-active: scale(1.02);
    --transition-time: 0.3s;
    --transition-function: ease;
}

/* 头部导航样式 */
.ai-nav-container {
    background-color: var(--ai-bg-light);
    border-bottom: 1px solid var(--ai-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgb(0 0 0 / 5%);
}

.ai-nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.ai-nav-logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 32px;
    width: auto;
    margin-right: 10px;
}

.ai-market-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ai-primary);
}

.ai-nav-items {
    display: flex;
    gap: 24px;
}

.ai-nav-item {
    color: var(--ai-text-primary);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
}

.ai-nav-item:hover,
.ai-nav-item.active {
    color: var(--ai-primary);
}

.ai-nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--ai-primary);
}

.ai-nav-actions {
    display: flex;
    gap: 12px;
}

.ai-nav-btn {
    padding: 6px 16px;
    border: 1px solid var(--ai-border);
    background-color: var(--ai-bg-light);
    color: var(--ai-text-primary);
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.ai-nav-btn:hover {
    border-color: var(--ai-primary);
    color: var(--ai-primary);
}

.ai-nav-btn.primary {
    background-color: var(--ai-primary);
    color: white;
    border-color: var(--ai-primary);
}

.ai-nav-btn.primary:hover {
    background-color: var(--ai-primary-dark);
}

/* Banner样式 */
.ai-banner {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
    min-height: 320px; /* 确保即使没有内容也保持固定高度 */
}

.ai-banner::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: right center;
    opacity: 0.1;
}

.ai-banner-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.ai-banner-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--ai-primary-dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.ai-banner-desc {
    font-size: 16px;
    color: var(--ai-text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

/* Banner响应式字体大小 - 整合媒体查询 */
@media (max-width: var(--breakpoint-lg)) {
    .ai-banner-title {
        font-size: 36px;
    }
}

@media (max-width: var(--breakpoint-md)) {
    .ai-banner-title {
        font-size: 28px;
    }
}

@media (max-width: var(--breakpoint-sm)) {
    .ai-banner-title {
        font-size: 24px;
    }
    
    .ai-banner-desc {
        font-size: 14px;
    }
}

@media (max-width: var(--breakpoint-xs)) {
    .ai-banner-title {
        font-size: 20px;
    }
}

/* 搜索框样式 */
.ai-search-container {
    background-color: var(--ai-bg-light);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--card-shadow-base);
}

.ai-search-box {
    display: flex;
    margin-bottom: 16px;
    align-items: center;
}

.ai-search-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--ai-border);
    border-right: none;
    border-radius: 6px 0 0 6px;
    font-size: 16px;
    outline: none;
    transition: border-color var(--transition-time) var(--transition-function);
}

.ai-search-input:focus {
    border-color: var(--ai-primary);
}

.ai-search-btn {
    padding: 12px 24px;
    background-color: var(--ai-primary);
    color: white;
    border: none;
    border-radius: 0 6px 6px 0;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background-color var(--transition-time) var(--transition-function);
}

.ai-search-btn:hover {
    background-color: var(--ai-primary-dark);
}

/* 移动端搜索框垂直布局 */
@media (max-width: var(--breakpoint-md)) {
    .ai-search-box {
        flex-direction: column;
        gap: 12px;
        padding: 16px;
    }
    
    .ai-search-input {
        width: 100%;
        border-radius: 4px;
        border-right: 1px solid var(--ai-border);
        border-bottom: 1px solid var(--ai-border);
        margin-bottom: 0;
    }
    
    .ai-search-btn {
        width: 100%;
        border-radius: 4px;
        padding: 12px;
        justify-content: center;
    }
}

.ai-search-tags {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.ai-search-tag {
    font-size: 14px;
    color: var(--ai-text-light);
}

.ai-search-tag-item {
    font-size: 14px;
    color: var(--ai-text-secondary);
    padding: 2px 8px;
    border-radius: 4px;
    background-color: var(--ai-secondary);
    transition: all 0.3s ease;
}

.ai-search-tag-item:hover {
    background-color: var(--ai-primary-light);
    color: white;
}

/* 导航块样式 */
.ai-banner-nav {
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.ai-banner-nav .container{
    background-color: #fff;
    background-origin: padding-box;
    border-radius: 20px;
    border: 1px solid #e0e0e0; /* 添加浅灰色边框 */
}

.ai-nav-items {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.ai-nav-item {
    text-align: center;
    padding: 20px 0;
    flex: 1;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
    border-right: 1px solid #f0f0f0;
}

.ai-nav-item:last-child {
    border-right: none;
}

.ai-nav-item:hover {
    color: var(--ai-primary);
    background-color: rgb(0 120 215 / 5%);
}

.ai-nav-item-title {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 8px;
}

.ai-nav-item-desc {
    font-size: 14px;
    color: #666;
}

/* 分类区域样式 */
.ai-categories {
    padding: 30px 0;
    background-color: var(--ai-bg-light);
}

.ai-section-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--ai-text-primary);
    margin-bottom: 32px;
    text-align: center;
}

/* 区域标题响应式字体大小 */
@media (max-width: var(--breakpoint-md)) {
    .ai-section-title {
        font-size: 28px;
        margin-bottom: 28px;
    }
}

@media (max-width: var(--breakpoint-xs)) {
    .ai-section-title {
        font-size: 24px;
        margin-bottom: 24px;
    }
}

.ai-section-header {
    margin-bottom: 32px;
}

.ai-section-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.ai-tabs-container {
    display: flex;
    justify-content: center;
    width: 100%;
}

.ai-section-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

/* AI服务卡片组件样式 */
.ai-services-cards {
    padding: 30px 0;
    background-color: var(--ai-bg-light);
    width: 100%;
    clear: both;
}

.ai-services-cards .container {
    width: 100%;
    max-width: 100%;
    padding-left: 20px;
    padding-right: 20px;
    box-sizing: border-box;
}

.ai-services-cards-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: auto;
    grid-auto-flow: row;
    gap: 24px;
    margin: 40px 0 0;
    padding: 0;
    width: 100%;
    height: auto;
    min-width: 0;
    max-width: none;
    min-height: 0;
    max-height: none;
    box-sizing: border-box;
    float: none;
    clear: both;
    position: static;
    overflow: visible;
    z-index: auto;
}

/* 确保卡片在网格中正确排列 */
.ai-services-cards-grid > .ai-service-card {
    grid-column: span 1;
    width: 100%;
    min-width: 0;
    max-width: none;
    height: auto;
    min-height: 0;
    max-height: none;
    display: block;
    float: none;
    clear: none;
    position: relative;
    box-sizing: border-box;
}

.ai-view-more {
    font-size: 14px;
    color: var(--ai-primary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.ai-view-more:hover {
    color: var(--ai-primary-dark);
}

.ai-tabs {
    display: flex;
    gap: 8px;
}

.ai-tab {
    padding: 6px 16px;
    background-color: var(--ai-secondary);
    border: none;
    border-radius: 4px;
    font-size: 14px;
    color: var(--ai-text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.ai-tab:hover {
    background-color: #e0e0e0;
}

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

/* 通用卡片交互效果工具类 */
.card-hover-effect {
    transition: all var(--transition-time) var(--transition-function);
}

/* 鼠标设备通用悬停效果 */
@media (hover: hover) and (pointer: fine) {
    .card-hover-effect:hover {
        box-shadow: var(--card-shadow-hover);
        border-color: var(--ai-primary);
    }
}

/* 触摸设备通用点击效果 */
@media (hover: none) and (pointer: coarse) {
    .card-hover-effect:active {
        box-shadow: var(--card-shadow-active);
        border-color: var(--ai-primary);
    }
}

.ai-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}

/* PC端确保显示5列 - 进一步减小断点并调整网格样式 */
@media (width >= 1000px) {
    .ai-categories-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 16px;
    }
}

/* AI分类卡片主样式 */
.ai-category-card {
    padding: 0px;
    background-color: var(--ai-bg-light);
    border: 1px solid var(--ai-border);
    border-radius: 20px;
    text-align: center;
    transition: all var(--transition-time) var(--transition-function);
    cursor: pointer;
    min-height: 180px; /* 设置最小高度，确保足够空间展示所有内容 */
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

/* AI分类图标容器 - 基础样式 */
.ai-category-icon {
    font-size: 16px;
    color: var(--ai-primary);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    border-radius: 20px 20px 0 0; /* 仅顶部设置圆角，与卡片顶部圆角对齐 */
}

/* AI分类图标容器 - 方形比例样式 */
.ai-category-icon-square {
    aspect-ratio: 1 / 1; /* 控制方图比例 */
}

/* AI分类图标容器 - 长图比例样式 */
.ai-category-icon-long {
    aspect-ratio: 8 / 4; /* 控制长图比例，长高比例4：3 */
}

/* AI分类标题样式 - 统一版本 */
.ai-category-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--ai-text-primary);
    margin: 0 0 2px;
    padding: 0 16px 5px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

/* AI分类描述 - 添加内边距以确保内容不紧贴边缘 */
.ai-category-desc {
    padding: 0 16px 16px;
    margin: 0;
    text-align: left; /* 左对齐 */
    display: -webkit-box; /* 启用WebKit盒模型 */
    -webkit-line-clamp: 2; /* 限制显示2行 */
    -webkit-box-orient: vertical; /* 垂直方向 */
    overflow: hidden; /* 隐藏超出内容 */
    text-overflow: ellipsis; /* 超出部分显示省略号 */
    font-size: 14px; /* 适当的字体大小 */
    color: var(--ai-text-secondary); /* 次要文本颜色 */
    line-height: 1.2rem; /* 行高设置 */
    height: 2.5rem; /* 固定两行高度：14px * 1.5行高 * 2行 = 42px */
}

/* 鼠标设备悬停效果 */
@media (hover: hover) and (pointer: fine) {
    .ai-category-card:hover {
        transform: var(--card-transform-scale-hover);
        box-shadow: var(--card-shadow-hover);
        border-color: var(--ai-primary);
    }
}

/* 触摸设备点击效果 */
@media (hover: none) and (pointer: coarse) {
    .ai-category-card:active {
        transform: var(--card-transform-scale-active);
        box-shadow: var(--card-shadow-active);
        border-color: var(--ai-primary);
    }
}

/* AI分类链接样式 */
.ai-category-link {
    text-decoration: none; /* 移除下划线 */
    color: inherit; /* 继承父元素颜色 */
    max-height: 100%; /* 图标区域占高度 */
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
}

.ai-category-link:hover {
    opacity: 0.8; /* 鼠标悬停时略微降低透明度 */
    transition: opacity 0.3s ease;
}

/* AI分类图标样式定义已拆分到基础样式和方形比例样式中 */

/* AI分类图标相关样式 */

/* AI分类默认图标容器样式 - 保持方形比例 */
.ai-icon-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    overflow: hidden;
}

/* AI分类默认图标容器中的图片样式 */
.ai-icon-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* AI分类图标中的图片样式 - 自动缩放适配 */
.ai-category-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    /* 移除绝对定位，让图片自然受到 flex 容器的居中影响 */
    /* 确保图片在 AI 服务卡片中垂直居中 */
}

/* 确保 AI 服务卡片中的图片垂直居中 */
.ai-service-image .image-container.ai-category-icon img,
.ai-service-img .image-container.ai-category-icon img {
    object-fit: contain;
}

/* 统一AI服务卡片样式 */
.ai-service-card {
    background-color: var(--ai-bg-light);
    border: 1px solid var(--ai-border);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--card-shadow-base);
    transition: all var(--transition-time) var(--transition-function);
    width: 100%;
    max-width: none;
    min-width: 0;
    display: block;
}

/* 鼠标设备悬停效果 */
@media (hover: hover) and (pointer: fine) {
    .ai-service-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--card-shadow-hover);
    }
}

/* 触摸设备点击效果 */
@media (hover: none) and (pointer: coarse) {
    .ai-service-card:active {
        transform: translateY(-2px);
        box-shadow: var(--card-shadow-active);
    }
}

/* 服务卡片图片样式 */
.ai-service-image, .ai-service-img {
    width: 100%;
    aspect-ratio: 8/5;
    overflow: hidden;
    background-color: var(--ai-bg-dark);
}

.ai-service-image img, .ai-service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--transition-time) var(--transition-function);
}

.ai-service-card:hover .ai-service-image img, 
.ai-service-card:hover .ai-service-img img {
    transform: scale(1.05);
}

/* 移除服务卡片链接的下划线 */
.ai-service-link {
    text-decoration: none;
}

.ai-service-link:hover {
    text-decoration: none;
}

/* 图片容器样式 */
.image-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

/* 图片覆盖层样式 */
.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.05);
    pointer-events: none;
}

/* 服务卡片内容样式 */
.ai-service-content, .ai-service-info {
    padding: 16px;
}

.ai-service-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--ai-text-primary);
    margin-bottom: 8px;
    line-height: 1rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.ai-service-desc {
    font-size: 0.875rem; /* 14px 转换为相对单位 */
    color: var(--ai-text-secondary);
    line-height: 1.6;
    margin-bottom: 5px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    min-height: 3.2em; /* 2行 * line-height 1.6 = 3.2em */
    height: 3.2em; /* 固定为两行高度 */
}

/* 服务流程样式 */
.ai-service-process {
    margin-bottom: 5px;
    padding: 8px 0;
    border-top: 1px dashed var(--ai-border);
    border-bottom: 1px dashed var(--ai-border);
}

.ai-process-label {
    font-size: 14px;
    color: var(--ai-text-secondary);
    margin-right: 5px;
    display: inline-flex;
    align-items: center;
}

.ai-process-label::before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 6px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%23666" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M12 22c6.627 0 12-5.373 12-12S18.627 0 12 0 0 5.373 0 12s5.373 12 12 12z"></path><path d="M9 12l2 2 4-4"></path></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.ai-process-steps {
    font-size: 14px;
    color: var(--ai-primary);
    font-weight: 500;
}

/* 服务按钮样式 */
.ai-service-button {
    width: 100%;
    padding: 10px 16px;
    background-color: var(--ai-primary);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-time) var(--transition-function);
}

.ai-service-button:hover {
    background-color: var(--ai-primary-dark);
}

/* 服务标签样式 */
.ai-service-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.ai-service-tag {
    padding: 2px 8px;
    font-size: 12px;
    border-radius: 4px;
    background-color: var(--ai-secondary);
    color: var(--ai-text-secondary);
}

.ai-service-tag.premium {
    background-color: #ff9800;
    color: white;
}

.ai-service-tag.free {
    background-color: #4caf50;
    color: white;
}

.ai-service-tag.popular {
    background-color: #f44336;
    color: white;
}

/* 服务页脚样式 */
.ai-service-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ai-service-stats {
    display: flex;
    gap: 16px;
}

.ai-service-stat {
    font-size: 14px;
    font-weight: 500;
    color: var(--ai-text-primary);
}

.ai-service-stat-unit {
    font-size: 12px;
    color: var(--ai-text-light);
    font-weight: 400;
    margin-left: 2px;
}

.ai-service-price {
    font-size: 16px;
    font-weight: 600;
    color: var(--ai-primary);
}

.ai-service-price-unit {
    font-size: 12px;
    color: var(--ai-text-secondary);
    font-weight: 400;
}

/* 推荐服务区域样式 */
.ai-recommended-services {
    padding: 60px 0;
    background-color: var(--ai-bg-dark);
}

.ai-services-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

/* 响应式布局 */
@media (max-width: var(--breakpoint-lg)) {
    .ai-services-cards-grid, .ai-services-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
}

@media (max-width: var(--breakpoint-md)) {
    .ai-services-cards-grid, .ai-services-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    .ai-service-title {
        font-size: 16px;
    }
    
    .ai-service-desc {
        font-size: 0.8125rem; /* 13px 转换为相对单位 */
        min-height: 3.2em; /* 2行 * line-height 1.6 = 3.2em */
        height: 3.2em; /* 固定为两行高度 */
    }
    
    .ai-process-label::before {
        width: 14px;
        height: 14px;
    }
    
    .ai-service-button {
        font-size: 14px;
        padding: 8px 12px;
    }
}

@media (max-width: var(--breakpoint-sm)) {
    .ai-services-cards-grid, .ai-services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .ai-service-content, .ai-service-info {
        padding: 12px;
    }
}

/* 解决方案区域样式 */
.ai-solutions {
    padding: 60px 0;
    background-color: var(--ai-bg-light);
}

.ai-solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.ai-solution-card {
    display: flex;
    flex-direction: column;
    background-color: var(--ai-bg-light);
    border: 1px solid var(--ai-border);
    border-radius: 8px;
    overflow: hidden;
    transition: all var(--transition-time) var(--transition-function);
}

/* 鼠标设备悬停效果 */
@media (hover: hover) and (pointer: fine) {
    .ai-solution-card:hover {
        transform: var(--card-transform-hover);
        box-shadow: var(--card-shadow-hover);
        border-color: var(--ai-primary);
    }
}

/* 触摸设备点击效果 */
@media (hover: none) and (pointer: coarse) {
    .ai-solution-card:active {
        transform: var(--card-transform-active);
        box-shadow: var(--card-shadow-active);
        border-color: var(--ai-primary);
    }
}

.ai-solution-img {
    height: 200px;
    overflow: hidden;
}

.ai-solution-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-time) var(--transition-function);
}

.ai-solution-card:hover .ai-solution-img img {
    transform: var(--card-transform-scale-hover);
}

.ai-solution-info {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ai-solution-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--ai-text-primary);
    margin-bottom: 12px;
}

.ai-solution-desc {
    font-size: 14px;
    color: var(--ai-text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
}

.ai-solution-features {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.ai-solution-feature {
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 12px;
    background-color: var(--ai-secondary);
    color: var(--ai-text-secondary);
}

.ai-solution-btn {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--ai-primary);
    color: white;
    border-radius: 4px;
    font-size: 14px;
    text-align: center;
    transition: background-color 0.3s ease;
}

.ai-solution-btn:hover {
    background-color: var(--ai-primary-dark);
}

/* 合作伙伴区域样式 */
.ai-partners {
    padding: 60px 0;
    background-color: var(--ai-bg-dark);
}

.ai-partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 32px;
    align-items: center;
}

.ai-partner-item {
    text-align: center;
    padding: 20px;
    background-color: var(--ai-bg-light);
    border-radius: 8px;
    transition: all 0.3s ease;
    min-height: 100px; /* 确保图片不存在时也保持相同高度 */
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-partner-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgb(0 0 0 / 8%);
}

.ai-partner-item img {
    max-width: 100px;
    height: auto;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.ai-partner-item:hover img {
    opacity: 1;
}

/* 底部区域样式 */
.ai-market-footer {
    background-color: #1a1a1a;
    color: #999;
}

.ai-footer-top {
    padding: 60px 0;
    border-bottom: 1px solid #333;
}

.ai-footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.ai-footer-title {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.ai-footer-links {
    list-style: none;
}

.ai-footer-links li {
    margin-bottom: 12px;
}

.ai-footer-links a {
    font-size: 14px;
    color: #999;
    transition: color 0.3s ease;
}

.ai-footer-links a:hover {
    color: white;
}

.ai-contact-info {
    margin-bottom: 20px;
}

.ai-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.6;
}

.ai-contact-item i {
    margin-top: 2px;
    color: var(--ai-primary);
}

.ai-social-links {
    display: flex;
    gap: 16px;
}

.ai-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: #333;
    color: #999;
    transition: all 0.3s ease;
    font-size: 18px;
}

.ai-social-link:hover {
    background-color: var(--ai-primary);
    color: white;
    transform: translateY(-2px);
}

.ai-footer-bottom {
    padding: 24px 0;
}

.ai-footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.ai-footer-logo img {
    height: 32px;
    width: auto;
}

.ai-copyright p {
    font-size: 14px;
    margin-bottom: 8px;
}

.ai-footer-policy {
    display: flex;
    gap: 16px;
}

.ai-footer-policy a {
    font-size: 12px;
    color: #666;
    transition: color 0.3s ease;
}

.ai-footer-policy a:hover {
    color: #999;
}

.ai-footer-cert {
    display: flex;
    gap: 16px;
}

.ai-footer-cert img {
    height: 24px;
    width: auto;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.ai-footer-cert img:hover {
    opacity: 1;
}

/* 响应式设计 */
@media (max-width: var(--breakpoint-xl)) {
    /* 大屏幕设备响应式调整 */
    .container {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .ai-nav-items {
        gap: 16px;
    }
    
    .ai-services-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }
    
    .ai-solutions-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 24px;
    }
    
    /* 解决方案布局调整 */
    .ai-solutions-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: var(--breakpoint-lg)) {
    /* 平板设备响应式调整 */
    .ai-nav-items {
        display: none;
    }
    
    .ai-banner-title {
        font-size: 36px;
    }
    
    .ai-banner-desc {
        font-size: 16px;
    }
    
    .ai-banner::before {
        width: 70%;
        opacity: 0.08;
    }
    
    .ai-section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .ai-section-actions {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        width: 100%;
    }
    
    .ai-tabs {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 8px;
    }
    
    .ai-categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 16px;
    }
    
    .ai-services-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 16px;
    }
    
    .ai-solutions-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .ai-partners-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 24px;
    }
    
    .ai-footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .ai-footer-bottom-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 16px;
    }
}

@media (max-width: var(--breakpoint-md)) {
    /* 小平板设备响应式调整 */
    .ai-nav-wrapper {
        padding: 0 16px;
    }
    
    .ai-banner {
        padding: 40px 0;
        min-height: 240px; /* 小平板设备上的最小高度 */
    }
    
    .ai-banner-title {
        font-size: 28px;
    }
    
    .ai-search-box {
        flex-direction: column;
    }
    
    .ai-search-input {
        border-right: 1px solid var(--ai-border);
        border-radius: 6px 6px 0 0;
        margin-bottom: 0;
    }
    
    .ai-search-btn {
        border-radius: 0 0 6px 6px;
        justify-content: center;
    }
    
    .ai-service-img {
        height: 160px;
    }
    
    .ai-solution-img {
        height: 180px;
    }
    
    .ai-footer-top {
        padding: 40px 0;
    }
}

@media (max-width: var(--breakpoint-sm)) {
    /* 移动设备响应式调整 */
    .ai-banner-title {
        font-size: 24px;
    }
    
    .ai-banner-desc {
        font-size: 14px;
    }
    
    .ai-search-tags {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .ai-categories-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .ai-services-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .ai-partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .ai-partner-item {
        padding: 16px;
        min-height: 80px; /* 响应式视图中确保图片不存在时也保持相同高度 */
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .ai-partner-item img {
        max-width: 80px;
    }
    
    .ai-footer-content {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .ai-footer-links li {
        margin-bottom: 8px;
    }
    
    .ai-contact-item {
        margin-bottom: 8px;
        font-size: 13px;
    }
    
    .ai-social-links {
        gap: 12px;
    }
    
    .ai-social-link {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    
    .ai-footer-bottom {
        padding: 16px 0;
    }
    
    .ai-footer-policy {
        flex-direction: column;
        gap: 8px;
        align-items: center;
    }
    
    .ai-footer-cert {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }
}

@media (max-width: var(--breakpoint-xs)) {
    /* 小屏移动设备额外调整 */
    .container {
        padding-left: 12px;
        padding-right: 12px;
    }
    
    .ai-banner-title {
        font-size: 20px;
    }
    
    .ai-nav-wrapper {
        height: 56px;
    }
    
    .logo-img {
        height: 28px;
    }
    
    .ai-market-title {
        font-size: 16px;
    }
    
    .ai-section-title {
        font-size: 24px;
        margin-bottom: 24px;
    }
    
    .ai-tab {
        padding: 5px 12px;
        font-size: 13px;
    }
}

/* 打印样式 */
@media print {
    .ai-nav-container,
    .ai-search-box,
    .ai-search-tags,
    .ai-nav-actions,
    .ai-view-more {
        display: none;
    }
    
    .ai-banner {
        padding: 20px 0;
        background: none;
        min-height: 180px; /* 移动设备上的最小高度 */
    }
    
    .ai-banner::before {
        display: none;
    }
    
    .ai-banner-title {
        font-size: 28px;
        color: #000;
    }
    
    .ai-section-title {
        break-after: avoid;
        border-bottom: 2px solid #ddd;
        padding-bottom: 10px;
    }
    
    .ai-service-card,
    .ai-solution-card {
        break-inside: avoid;
        border: 1px solid #ddd;
    }
}

/* 触摸设备优化 */

/* 默认桌面端布局 */
@media (min-width: var(--breakpoint-xl)) {
    .ai-services-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 24px;
    }
    
    .ai-solutions-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    
    .ai-partners-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 32px;
    }
}

/* 触摸设备优化 - 保持原有过渡效果但更简化 */
@media (hover: none) and (pointer: coarse) {
    .ai-service-card,
    .ai-solution-card {
        transition: transform 0.15s ease, box-shadow 0.15s ease;
    }
}

/* 键盘导航聚焦样式 */
.ai-nav-item:focus,
.ai-tab:focus,
.ai-search-btn:focus,
.ai-service-card:focus,
.ai-solution-card:focus,
.ai-category-card:focus {
    outline-offset: 2px;
    background-color: rgb(0 120 215 / 5%);
}