/* ========================================
   共用组件样式 - 从aiyiyi.html迁移
   ======================================== */

/* 快速导航栏样式 */
.quick-nav {
    background: var(--gradient-primary);
    padding: var(--padding-card) 0;
    margin-bottom: var(--padding-section);
    box-shadow: var(--shadow-card);
}

.quick-nav-items {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.quick-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--border-radius-lg) var(--padding-card);
    background: rgba(255,255,255,0.1);
    border-radius: var(--border-radius-lg);
    color: white;
    text-decoration: none;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    min-width: 100px;
}

.quick-nav-item:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    color: white;
}

.quick-nav-item i {
    font-size: 24px;
    margin-bottom: 8px;
    color: #fff;
}

.quick-nav-item span {
    font-size: 14px;
    font-weight: 500;
    text-align: center;
}

/* 核心服务网格样式 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--padding-section);
    margin-top: 40px;
}

.service-item {
    background: white;
    padding: var(--padding-section);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-card-hover);
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid #f0f0f0;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-card-active);
    border-color: var(--color-gradient-primary);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--margin-element);
    transition: var(--transition-normal);
}

.service-item:hover .service-icon {
    background: var(--gradient-primary-reverse);
    transform: scale(1.1);
}

.service-icon i {
    font-size: 32px;
    color: white;
}

.service-item h3 {
    font-size: 1.3em;
    margin: var(--margin-element) 0 var(--border-radius-lg);
    color: #333;
    font-weight: 600;
}

.service-item p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 25px;
    font-size: 0.95em;
}

.service-link {
    display: inline-block;
    padding: var(--border-radius-md) 25px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: var(--transition-normal);
    font-size: 0.9em;
}

.service-link:hover {
    background: var(--gradient-primary-reverse);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102,126,234,0.4);
    color: white;
}

/* 内容区块样式 */
.content-block {
    margin-bottom: 4rem;
}

.content-block h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--color-neutral-900);
    text-align: center;
    position: relative;
}

.content-block h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-gold);
}

/* 图片容器样式 */
.image-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-md);
    background-color: var(--color-neutral-100);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-container::before {
    content: '';
    display: block;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.image-container img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 图文交互区域 */
.interactive-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
}

.interactive-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-neutral-900);
}

.interactive-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-neutral-700);
    margin-bottom: 1rem;
}

.interactive-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    display: block;
    max-width: 100%;
}

.interactive-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

/* 价值主张样式 */
.value-proposition {
    background: var(--gradient-gold);
    color: var(--color-white);
    padding: 3rem;
    border-radius: var(--border-radius-md);
    text-align: center;
    margin: 3rem 0;
}

.value-proposition h3 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.value-proposition p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 响应式设计 - 共用组件 */
@media (max-width: 1024px) {
    .interactive-section {
        gap: 2.5rem;
    }
    
    .image-container::before {
        padding-bottom: 60%; /* 调整平板设备的宽高比 */
    }
}

@media (max-width: 768px) {
    .quick-nav-items {
        gap: 20px;
    }
    
    .quick-nav-item {
        padding: 12px 15px;
        min-width: 80px;
    }
    
    .quick-nav-item i {
        font-size: 20px;
    }
    
    .quick-nav-item span {
        font-size: 12px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .service-item {
        padding: 25px 20px;
    }
    
    .service-icon {
        width: 60px;
        height: 60px;
    }
    
    .service-icon i {
        font-size: 24px;
    }
    
    .interactive-section {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .interactive-image {
        height: 250px;
    }
    
    .image-container::before {
        padding-bottom: 56.25%; /* 保持16:9比例 */
    }
    
    .value-proposition h3 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .interactive-section {
        gap: 1.5rem;
    }
    
    .interactive-image {
        height: 200px;
    }
    
    .image-container::before {
        padding-bottom: 65%; /* 移动端稍微调整比例 */
    }
    
    .interactive-content h3 {
        font-size: 1.3rem;
    }
    
    .interactive-content p {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .value-proposition p {
        font-size: 1rem;
    }
}

/* ========================================
   文章中心模块样式
   ======================================== */

.article-center-widget {
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f2ff 100%);
    border-radius: var(--border-radius-md);
    padding: var(--padding-card);
    margin: var(--padding-section) 0;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(102, 126, 234, 0.1);
    position: relative;
    overflow: hidden;
}

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

.article-center-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--border-radius-lg);
    gap: 10px;
}

.article-center-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
}

.article-center-title {
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
    font-family: 'Noto Sans SC', sans-serif;
}

.article-list {
    display: grid;
    gap: 12px;
}

.article-item {
    background: white;
    border-radius: var(--border-radius-sm);
    padding: var(--border-radius-lg);
    border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition-normal);
    cursor: pointer;
}

.article-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
    border-color: rgba(102, 126, 234, 0.2);
}

.article-item-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-neutral-900);
    margin-bottom: var(--border-radius-sm);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-item-summary {
    font-size: 14px;
    color: #7f8c8d;
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    font-size: 12px;
    color: #95a5a6;
}

.article-item-date {
    display: flex;
    align-items: center;
    gap: 4px;
}

.article-item-category {
    background: var(--gradient-primary);
    color: white;
    padding: 2px var(--border-radius-sm);
    border-radius: var(--border-radius-md);
    font-size: 11px;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .article-center-widget {
        margin: var(--margin-element) 0;
        padding: var(--border-radius-lg);
    }
    
    .article-center-title {
        font-size: 16px;
    }
    
    .article-item {
        padding: var(--border-radius-md);
    }
    
    .article-item-title {
        font-size: 15px;
    }
    
    .article-item-summary {
        font-size: 13px;
    }
}