/* 通用样式 */
body {
    padding-top: 56px;
}

/* 轮播图样式 */
.carousel-item {
    height: 500px;
}

.carousel-item img {
    object-fit: cover;
    height: 100%;
}

.carousel-caption {
    background: rgba(0, 0, 0, 0.5);
    padding: 20px;
    border-radius: 10px;
}

/* 卡片样式 */
.card {
    margin-bottom: 20px;
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.card-img-top {
    height: 200px;
    object-fit: cover;
}

/* 页脚样式 */
footer {
    position: relative;
    bottom: 0;
    width: 100%;
}

/* 关于页面样式 */
.about-header {
    position: relative;
    height: 400px;
    overflow: hidden;
    margin-bottom: 30px;
}

.about-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-overlay h1 {
    font-size: 3rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.about-content h4 {
    color: #333;
    margin-bottom: 20px;
}

.about-content p {
    line-height: 1.8;
    color: #666;
}