/* 页面标题样式 */
.page-header {
    text-align: center;
    padding: 4rem 0;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    margin-bottom: 2rem;
}

.page-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 案例筛选按钮样式 */
.case-filter {
    margin-bottom: 3rem;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.8rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: white;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 案例卡片样式 */
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
}

.case-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.case-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.case-card:hover .case-image img {
    transform: scale(1.05);
}

.case-content {
    padding: 1.5rem;
}

.case-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(26, 115, 232, 0.1);
    color: var(--primary-color);
    border-radius: 4px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.case-content h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.case-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* 案例统计数据样式 */
.case-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat .number {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.stat .label {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* 查看详情按钮样式 */
.case-detail-btn {
    width: 100%;
    padding: 0.8rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.case-detail-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(26, 115, 232, 0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .case-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    .filter-buttons {
        flex-direction: column;
        align-items: stretch;
        padding: 0 1rem;
    }

    .filter-btn {
        width: 100%;
        text-align: center;
    }

    .case-stats {
        grid-template-columns: 1fr;
    }
}