/* ========================================
   照片卡片样式
   ======================================== */

/* 照片卡片堆叠容器 - 第1屏居中 */
.section-romantic .card-stack-container {
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    z-index: 100; /* 提高z-index确保在最上层 */
    margin-top: -50px; /* 视觉微调 */
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px; /* 确保有足够高度 */
}

.card-stack {
    position: relative;
    width: 200px;
    height: 280px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.card-stack:hover {
    transform: scale(1.05);
}

.card {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(234, 143, 157, 0.4), inset 0 0 20px rgba(255, 255, 255, 0.1);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    transform-origin: center bottom;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover::before {
    opacity: 1;
}

.card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 18px;
}

.card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
    background: linear-gradient(135deg, rgba(234, 143, 157, 0.3), rgba(255, 182, 193, 0.2));
    border-radius: 18px;
}

.card-placeholder .icon {
    font-size: 56px;
    margin-bottom: 15px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

/* 照片上传按钮区域 */
.card-upload-controls {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999;
    display: flex;
    gap: 15px;
}

.card-upload-btn {
    padding: 14px 32px;
    border: none;
    border-radius: 30px;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.9), rgba(255, 140, 180, 0.9));
    backdrop-filter: blur(10px);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 32px rgba(234, 143, 157, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.3);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-upload-btn:hover {
    background: linear-gradient(135deg, rgba(255, 107, 157, 1), rgba(255, 140, 180, 1));
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(234, 143, 157, 0.6);
}

.card-upload-btn:active {
    transform: translateY(-1px);
}

/* 照片预览模态框 */
.photo-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.photo-modal.active {
    display: flex;
    opacity: 1;
}

.photo-modal img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
    animation: modalZoom 0.3s ease;
}

@keyframes modalZoom {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.photo-modal-close {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-modal-close:hover {
    background: rgba(255, 107, 157, 0.8);
    transform: rotate(90deg);
}

/* 照片计数器 */
.photo-counter {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    border-radius: 20px;
    color: white;
    font-size: 14px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 堆叠状态 */
.card:not(:first-child) {
    opacity: 0;
    transform: translateY(0) rotate(0deg) scale(1);
}

/* 展开状态 - 使用贝塞尔曲线让动画更丝滑 */
.card-stack:hover .card {
    opacity: 1;
}

.card-stack:hover .card:nth-child(1) {
    transform: translateY(0) rotate(-50deg) translateX(-280px) scale(0.92);
}

.card-stack:hover .card:nth-child(2) {
    transform: translateY(-10px) rotate(-33deg) translateX(-180px) scale(0.95);
}

.card-stack:hover .card:nth-child(3) {
    transform: translateY(-15px) rotate(-17deg) translateX(-90px) scale(0.97);
}

.card-stack:hover .card:nth-child(4) {
    transform: translateY(-20px) rotate(0deg) translateX(0) scale(1);
}

.card-stack:hover .card:nth-child(5) {
    transform: translateY(-15px) rotate(17deg) translateX(90px) scale(0.97);
}

.card-stack:hover .card:nth-child(6) {
    transform: translateY(-10px) rotate(33deg) translateX(180px) scale(0.95);
}

.card-stack:hover .card:nth-child(7) {
    transform: translateY(0) rotate(50deg) translateX(280px) scale(0.92);
}

/* 悬停时的额外效果 - 不改变transform，只改变视觉样式 */
.card-stack:hover .card:hover {
    box-shadow: 0 30px 80px rgba(234, 143, 157, 0.8), inset 0 0 40px rgba(255, 255, 255, 0.4);
    z-index: 100;
    border-color: rgba(255, 255, 255, 0.8);
    border-width: 3px;
    filter: brightness(1.2) drop-shadow(0 0 20px rgba(255, 107, 157, 0.6));
}