#main {
    padding-top: 100px;
    padding-bottom: 100px;
}

.main-section {
    height: 500px;
    background-image: url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?q=80&w=2072&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    text-align: center;
}

#section {
    border-radius: 0px;
}

.main-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.main-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
    color: #ffffff;
}

.main-desc {
    font-size: 1.2rem;
    max-width: 800px;
    line-height: 1.6;
    position: relative;
    z-index: 2;
    color: #ffffff;
}

/* 두 번째 섹션 스타일링 */
#section1 {
    padding-top: 50px;
    padding-bottom: 50px;
    border-radius: 0px;
    margin-top: 0px;
    margin-bottom: 0px;
    background-color: #f8f9fa;
}

.section-group {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 2.5rem;
    color: #333;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: #007bff;
    margin: 20px auto 0;
}

.strategy-subtitle {
    font-size: 1.8rem;
    color: #444;
    margin: 40px 0 20px;
    padding-left: 15px;
    border-left: 4px solid #007bff;
}

/* 카드 스타일링 */
.strategy-list, .region-list, .roadmap-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 0;
    list-style: none;
}

.strategy-item, .region-item, .roadmap-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.strategy-item:hover, .region-item:hover, .roadmap-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.strategy-period, .region-name, .roadmap-step {
    display: block;
    color: #007bff;
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.strategy-desc, .region-desc, .roadmap-desc {
    color: #666;
    line-height: 1.6;
}

.strategy-summary {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-top: 50px;
    text-align: center;
    color: #666;
    line-height: 1.8;
    font-size: 1.1rem;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .strategy-list, .region-list, .roadmap-list {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .strategy-subtitle {
        font-size: 1.5rem;
    }
}