/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    background-color: #f8f9fa;
    color: #333;
    overflow-x: hidden;
    line-height: 1.6;
}

/* 轮播图样式 */
.carousel-img {
    height: 100vh;
    object-fit: cover;
    filter: brightness(0.85);
}

.carousel-caption {
    background: rgba(0, 0, 0, 0.4);
    padding: 20px;
    border-radius: 10px;
}

.carousel-caption h5 {
    font-size: 2rem;
    font-weight: 700;
}

.carousel-caption p {
    font-size: 1.2rem;
}

/* 顶部标题区域 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 0 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.hero-section p {
    font-size: 1.3rem;
    opacity: 0.9;
}

/* 音乐控制区域 */
.music-control {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(118, 75, 162, 0.9);
    color: white;
    padding: 12px 25px;
    border-radius: 50px;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 10px;
}

.music-control audio {
    width: 200px;
}

/* 纪念册内容区域 */
.memory-section {
    padding: 80px 0 60px;
}

.section-title {
    color: #764ba2;
    font-size: 2.2rem;
    font-weight: 600;
}

.section-divider {
    width: 80px;
    height: 3px;
    background: #764ba2;
    margin: 15px auto;
    opacity: 0.8;
}

/* 优化卡片布局，改为flex确保高度统一 */
.memory-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    margin-bottom: 30px;
    transition: all 0.4s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.memory-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

/* 优化图片缩放原点和过渡效果 */
.memory-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    transition: transform 0.5s ease;
    transform-origin: center;
}

.memory-card:hover .memory-img {
    transform: scale(1.05);
    filter: brightness(0.95);
}

.memory-content {
    padding: 25px;
    flex: 1; /* 让内容区域自动填充剩余高度 */
}

.memory-content h3 {
    color: #764ba2;
    margin-bottom: 15px;
    font-size: 1.6rem;
    font-weight: 600;
}

.memory-content p {
    color: #666;
    font-size: 1rem;
    line-height: 1.7;
}

/* 页脚样式 */
footer {
    background: #222;
    color: white;
    text-align: center;
    padding: 40px 0;
    margin-top: 60px;
}

footer p {
    margin: 0;
    opacity: 0.9;
}

/* 响应式适配 - 平板 (≥768px 且 <992px) */
@media (max-width: 991.98px) and (min-width: 768px) {
    .carousel-img {
        height: 60vh;
    }
    
    .music-control audio {
        width: 180px;
    }
}

/* 响应式适配 - 手机横屏 (≥576px 且 <768px) */
@media (max-width: 767.98px) and (min-width: 576px) {
    .carousel-img {
        height: 50vh;
    }
    
    .carousel-caption h5 {
        font-size: 1.5rem;
    }
    
    .carousel-caption p {
        font-size: 1rem;
    }
    
    .hero-section {
        padding: 40px 0 30px;
    }
    
    .hero-section h1 {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .memory-img {
        height: 220px;
    }
    
    .music-control {
        bottom: 15px;
        right: 15px;
        padding: 8px 15px;
    }
    
    .music-control audio {
        width: 150px;
    }
}

/* 响应式适配 - 手机竖屏 (<576px) */
@media (max-width: 575.98px) {
    .carousel-img {
        height: 40vh;
    }
    
    .carousel-caption {
        padding: 10px;
    }
    
    .hero-section h1 {
        font-size: 1.8rem;
    }
    
    .hero-section p {
        font-size: 1.1rem;
    }
    
    .memory-content {
        padding: 20px 15px;
    }
    
    .memory-content h3 {
        font-size: 1.4rem;
    }
    
    .music-control {
        flex-direction: column;
        padding: 10px;
        border-radius: 15px;
        align-items: center;
        width: fit-content;
        margin: 0 auto;
    }
    
    .music-control audio {
        width: 180px;
        margin-top: 8px;
    }
    
    footer {
        padding: 30px 15px;
    }
}

/* 超小屏幕适配 (<375px) */
@media (max-width: 374.98px) {
    .carousel-img {
        height: 35vh;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .memory-img {
        height: 200px;
    }
}