/* AI应用页面样式 */
:root {
    --primary-color: #2563EB;
    --gradient-bg: linear-gradient(135deg, #3B82F6, #1D4ED8);
    --dark-bg: #0F172A;
    --card-bg: #1E293B;
    --text-primary: #E2E8F0;
    --text-secondary: #94A3B8;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 导航按钮样式 */
.nav-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 3rem 0;
}

.nav-button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    background: #ffffff;
    color: #1a202c;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.nav-button:hover {
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.nav-button.active {
    background: var(--primary-color);
    color: #ffffff;
    border-color: transparent;
}

/* 内容区域样式 */
.content-section {
    display: none;
    padding: 2rem 0;
}

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

/* AI大模型部署样式 */
.model-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding: 2rem 0;
}

.model-item {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.model-item h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.content-text {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
    font-size: 1rem;
    flex-grow: 1;  /* 让文本区域填充剩余空间 */
}

.content-image {
    margin-top: auto;  /* 图片固定在底部 */
}

.content-image img {
    width: 100%;
    height: auto;
    max-width: 300px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* AI平台软件供应样式 */
.platform-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 2rem 0;
}

.platform-item {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2.5rem;
    display: grid;
    grid-template-columns: 1.2fr 1fr;  /* 文字区域稍宽一些 */
    gap: 3rem;
    align-items: center;
}

.platform-item .text-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.platform-item h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.platform-item .content-text {
    color: var(--text-secondary);
    line-height: 1.6;
}

.platform-item .content-text p {
    margin-bottom: 1rem;
}

.feature-list {
    list-style-type: disc;
    padding-left: 1.5rem;
    margin: 1rem 0;
}

.feature-list li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.platform-item .content-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.platform-item .content-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* AI Agent定制开发样式 */
.agent-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;  /* 修改为顶部对齐 */
}

.info-item {
    margin-bottom: 2rem;
}

.info-item h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.info-item .content-text {
    margin-bottom: 1.5rem;
}

/* Hero 区域样式 */
.hero-section {
    position: relative;
    height: 550px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;  /* 确保内容在图片上层 */
    text-align: center;
    padding: 2rem;
    max-width: 800px;
}

.hero-title {
    font-size: 3rem;
    color: #ffffff;  /* 确保文字颜色为白色 */
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);  /* 添加文字阴影增加可读性 */
}

.hero-description {
    font-size: 1.5rem;
    color: #ffffff;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;  /* 确保图片在底层 */
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 响应式布局 */
@media (max-width: 1200px) {
    .model-content {
        grid-template-columns: repeat(2, 1fr);  /* 平板显示两列 */
    }
}

@media (max-width: 992px) {
    .agent-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-button {
        width: 100%;
    }

    .model-content {
        grid-template-columns: 1fr;  /* 手机显示单列 */
    }
}

/* 响应式调整 */
@media (max-width: 1240px) {
    .container,
    .model-content,
    .platform-content,
    .agent-content {
        max-width: 100%;
        padding: 0 2rem;
    }
}

@media (max-width: 768px) {
    .platform-item {
        padding: 1.5rem;
    }
    
    .feature-list {
        padding-left: 1.5rem;
    }
}

@media (max-width: 1024px) {
    .platform-item {
        grid-template-columns: 1fr;
        padding: 2rem;
    }

    .platform-item .content-image {
        order: -1;  /* 在小屏幕上图片显示在上方 */
    }
}