/* ===========================================
   VTS 智能仿真平台 - 核心功能页专用样式
   =========================================== */

/* 核心功能详细页面样式 */
.features-detail {
    padding: 100px 0;
    background: #ffffff;
}

.feature-detail-item {
    margin-bottom: 100px;
}

.feature-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-detail-item.reverse .feature-detail-content {
    grid-template-columns: 1fr 1fr;
}

.feature-detail-item.reverse .feature-detail-text {
    order: 2;
}

.feature-detail-item.reverse .feature-detail-image {
    order: 1;
}

.feature-detail-text h2 {
    font-size: 2.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.feature-description {
    font-size: 1.1rem;
    color: #7f8c8d;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    padding-left: 2rem;
    position: relative;
    color: #2c3e50;
    line-height: 1.6;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
    font-size: 1.2rem;
}

.detail-img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.detail-img:hover {
    transform: scale(1.02);
}

/* 技术优势样式 */
.tech-advantages {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e3f2fd 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.advantage-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-card h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    font-weight: 600;
}

.advantage-card p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 图标样式 */
.icon-performance::before { content: '⚡'; font-size: 24px; }
.icon-scalability::before { content: '📈'; font-size: 24px; }
.icon-integration::before { content: '🔗'; font-size: 24px; }
.icon-security::before { content: '🔒'; font-size: 24px; }

/* 移动端响应式 */
@media (max-width: 768px) {
    .feature-detail-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .feature-detail-item.reverse .feature-detail-text {
        order: 1;
    }
    
    .feature-detail-item.reverse .feature-detail-image {
        order: 2;
    }
    
    .feature-detail-text h2 {
        font-size: 1.8rem;
        line-height: 1.3;
    }
    
    .feature-description {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}