/* Banner轮播图（统一于 common.css） */



.banner-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
   
    animation: fadeInUp 1s ease-out;
}

.banner-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.banner-btn {
    background: #D2691E;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.banner-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(210, 105, 30, 0.3);
}

/* 轮播图控制按钮（统一于 common.css） */

/* 指示点 */
/* 指示点（统一于 common.css） */


/* 主要内容区域 */
.main-content {
    background: #F5F4F0;
}

/* 文化发展区域 */
.culture-section {
    padding: 0 20px;
    text-align: center;
    position: relative;
    max-width:1200px;
    margin: 0 auto 30px;
}


.culture-section > * {
    position: relative;
    z-index: 2;
}

/* 图片网格布局 */
.culture-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 0 auto;
}

.culture-gallery img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.6s ease, box-shadow 0.35s ease;
}

.culture-gallery img:hover {
    transform: scale(1.04);
    box-shadow: 0 0 20px rgba(181, 90, 75, 0.36), 0 12px 26px rgba(0,0,0,0.12);
}

/* 丝绸之路地图区域 */
.silk-road-section {
    text-align: center;
    margin-bottom: 80px;
}

.silk-road-map {
    width: 100%;
    height: 400px;
    margin: 0 auto 50px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid rgba(181, 90, 75, 0.18);
    box-shadow: 0 14px 32px rgba(61, 36, 22, 0.12);
    position: relative;
    transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.silk-road-map::after {
    content: "点击查看全图与图文介绍";
    position: absolute;
    left: 24px;
    bottom: 22px;
    padding: 8px 14px;
    border-radius: 4px;
    color: #fff;
    font-family: "STKaiti", "KaiTi", serif;
    font-size: 14px;
    letter-spacing: 0;
    background: rgba(74, 39, 31, 0.58);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.35s ease, transform 0.35s ease;
    pointer-events: none;
}

.silk-road-map img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.silk-road-map:hover {
    transform: translateY(-4px);
    border-color: rgba(181, 90, 75, 0.48);
    box-shadow: 0 0 22px rgba(181, 90, 75, 0.38), 0 18px 38px rgba(61, 36, 22, 0.16);
}

.silk-road-map:hover img {
    transform: scale(1.04);
}

.silk-road-map:hover::after {
    opacity: 1;
    transform: translateY(0);
}



.silk-road-description {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    text-align: left;
}

/* 内容容器 */
.content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 艺术传承区域 */
.art-heritage-section {
    margin-top: 30px;
}

.heritage-title {
    font-size: 20px;
    color: #8B4513;
    margin-bottom: 20px;
}

.heritage-description {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 40px;
}

/* 艺术表现区域 */
.art-expression-section {
    background: #B5530A;
    margin: 0 -20px;
    padding: 60px 20px;
    text-align: center;
}

.expression-container {
    max-width: 1200px;
    margin: 0 auto;
}

.expression-title {
    font-size: 28px;
    color: white;
    margin-bottom: 30px;
}

.expression-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: center;
}

.expression-text {
    text-align: left;
}

.expression-text h4 {
    font-size: 20px;
    color: white;
    margin-bottom: 15px;
}

.expression-text p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255,255,255,0.9);
    margin-bottom: 15px;
}

.expression-image {
    width: 100%;
    height: 250px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 12px 28px rgba(0,0,0,0.14);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.expression-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.expression-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 20px rgba(246, 221, 139, 0.42), 0 18px 36px rgba(0,0,0,0.18);
}

.expression-image:hover img {
    transform: scale(1.04);
}

/* 了解更多区域 */
.learn-more-section {
    margin: 80px 0;
    text-align: center;
}

.learn-more-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 40px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.learn-more-title {
    font-size: 28px;
    color: #8B4513;
    margin-bottom: 20px;
}

.learn-more-description {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 40px;
}

.learn-more-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.learn-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #D2691E;
    color: white;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(210, 105, 30, 0.3);
}

.learn-more-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(210, 105, 30, 0.4);
}

.learn-more-btn.secondary {
    background: white;
    color: #D2691E;
    border: 2px solid #D2691E;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.learn-more-btn.secondary:hover {
    background: #D2691E;
    color: white;
}

/* 艺术分类 */
.art-categories-section {
    max-width: 1200px;
    margin: 0 auto;
    padding-bottom: 50px;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.category-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.category-item:hover {
    transform: translateY(-5px);
}

.category-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.category-item-content {
    padding: 20px;
}

.category-item-title {
    font-size: 16px;
    color: #8B4513;
    font-weight: bold;
    margin-bottom: 10px;
}

.category-item-description {
    font-size: 13px;
    line-height: 1.6;
    color: #666;
}




/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .banner-title {
        font-size: 32px;
    }
    
    .banner-subtitle {
        font-size: 16px;
    }
    
    .culture-gallery {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .silk-road-map {
        height: 260px;
        margin-bottom: 28px;
    }

    .silk-road-map::after {
        left: 14px;
        right: 14px;
        bottom: 14px;
        text-align: center;
        opacity: 1;
        transform: none;
    }
    
    .expression-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        margin-bottom: 30px;
    }
    
    .timeline-content {
        width: 100%;
        margin-left: 30px;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline-dot {
        left: 15px;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
}