/* 页面横幅样式 */
.page-banner {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    margin-bottom: 2rem;
}

.page-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* 时间轴部分样式 */
.timeline-section {
    padding: 2rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 1rem auto 2rem;
    color: #666;
}

.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: #4a6741;
}

.timeline-item {
    width: 100%;
    margin-bottom: 4rem;
    position: relative;
}

.timeline-content {
    width: calc(50% - 2rem);
    padding: 1.5rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: auto;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: auto;
}

.time-period {
    position: absolute;
    top: -2rem;
    background: #4a6741;
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.timeline-item:nth-child(odd) .time-period {
    left: 0;
}

.timeline-item:nth-child(even) .time-period {
    right: 0;
}

.timeline-content h3 {
    color: #4a6741;
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.history-image {
    width: 100%;
    height: 200px;
    margin: 1rem 0;
    overflow: hidden;
    border-radius: 8px;
}

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

/* 文化影响部分样式 */
.culture-impact {
    padding: 2rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.impact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.impact-item {
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.impact-item h3 {
    color: #4a6741;
    margin-bottom: 1rem;
}

.impact-item p {
    color: #666;
}

/* 响应式设计 */
@media (min-width: 768px) {
    .impact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .impact-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}