/* 朝花夕拾页面样式 */

.main-content {
    padding: 40px 0;
}

.content-wrapper {
    display: flex;
    gap: 30px;
}

.memories-section {
    flex: 1;
}

/* 时间轴容器 */
.timeline-container {
    padding: 0 0 20px 0;
}

/* 时间轴 */
.timeline {
    position: relative;
    padding-left: 40px;
}

/* 时间轴线 */
.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--secondary-color), var(--primary-color));
}

.timeline-item {
    position: relative;
    margin-bottom: 30px;
}

/* 时间轴标记点 */
.timeline-marker {
    position: absolute;
    left: -36px;
    top: 20px;
    width: 16px;
    height: 16px;
    background: var(--card-background);
    border: 3px solid var(--secondary-color);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-marker {
    background: var(--secondary-color);
    transform: scale(1.2);
}

.timeline-item .timeline-label.expanded .timeline-marker {
    background: var(--secondary-color);
}

/* 时间轴内容 */
.timeline-content {
    background: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 2px 10px var(--shadow-color);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

/* 时间轴标签（可点击部分） */
.timeline-label {
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 15px;
    position: relative;
}

.timeline-label:hover {
    background: var(--hover-color);
}

.timeline-label.expanded {
    background: rgba(180, 215, 0, 0.05);
}

.timeline-date {
    font-size: 1.2rem;
    color: var(--secondary-color);
    font-weight: 600;
    min-width: 80px;
}

.timeline-title {
    flex: 1;
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
}

.timeline-note {
    flex: 2;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.timeline-toggle-icon {
    font-size: 1rem;
    color: var(--secondary-color);
    transition: transform 0.3s ease;
}

.timeline-label.expanded .timeline-toggle-icon {
    transform: rotate(180deg);
}

/* 时间轴详情（展开内容） */
.timeline-detail {
    padding: 0 20px 20px 20px;
    border-top: 1px dashed var(--border-color);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 图片展示区 */
.timeline-images {
    display: grid;
    gap: 15px;
    margin: 20px 0;
}

/* PC端：1-4张图片都同行排列 */
.timeline-images.grid-1 {
    grid-template-columns: 1fr;
}

.timeline-images.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.timeline-images.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.timeline-images.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* 5张及以上：每行4张，剩余换行 */
.timeline-images.grid-5,
.timeline-images.grid-6,
.timeline-images.grid-7,
.timeline-images.grid-8,
.timeline-images.grid-9,
.timeline-images.grid-10,
.timeline-images.grid-11,
.timeline-images.grid-12,
.timeline-images.grid-13,
.timeline-images.grid-14,
.timeline-images.grid-15,
.timeline-images.grid-16 {
    grid-template-columns: repeat(4, 1fr);
}

.timeline-images img {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

/* 单张图片：保持原比例，不强制拉伸 */
.timeline-images.grid-1 img {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    margin: 0 auto;
}

.timeline-images img:hover {
    transform: scale(1.05);
}

/* 文字内容区 */
.timeline-text {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin: 15px 0;
}

.timeline-text p {
    margin-bottom: 15px;
}

.timeline-text blockquote {
    border-left: 3px solid var(--secondary-color);
    padding-left: 15px;
    margin: 20px 0;
    font-style: italic;
    color: var(--text-primary);
}

/* 图片灯箱效果 */
.image-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.image-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.image-lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    font-size: 3rem;
    color: white;
    cursor: pointer;
    transition: transform 0.3s ease;
    line-height: 1;
}

.lightbox-close:hover {
    transform: rotate(90deg);
}

@media (max-width: 768px) {
    .lightbox-close {
        top: 15px;
        right: 20px;
        font-size: 2.5rem;
    }

    .image-lightbox img {
        max-width: 95%;
        max-height: 85%;
    }
}

/* 响应式适配 */
@media (max-width: 1024px) {
    .content-wrapper {
        flex-direction: column;
    }

    .memories-section {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 10px 0 0 0;
    }

    .timeline-detail {
        padding: 0 20px 0 20px;
    }

    .timeline-item {
        margin-bottom: 10px;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline::before {
        left: 5px;
    }

    .timeline-marker {
        left: -29px;
        width: 12px;
        height: 12px;
    }

    .timeline-label {
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
        padding: 5px 5px;
        position: relative;
    }

    .timeline-date {
        min-width: auto;
        font-size: 1rem;
    }

    .timeline-title-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        gap: 10px;
    }

    .timeline-title {
        flex: 1;
        font-size: 1.1rem;
    }

    .timeline-note {
        font-size: 0.9rem;
        width: 100%;
    }

    .timeline-toggle-icon {
        position: static;
        transform: none;
        margin-left: auto;
    }

    .timeline-label.expanded .timeline-toggle-icon {
        transform: rotate(180deg);
    }

    .timeline-images {
        gap: 10px;
        margin: 5px 0;
    }

    /* 移动端：1-3张 - 最多2张一行 */
    .timeline-images.grid-1 {
        grid-template-columns: 1fr;
    }

    .timeline-images.grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .timeline-images.grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 移动端：4张及以上 - 每行2张 */
    .timeline-images.grid-4,
    .timeline-images.grid-5,
    .timeline-images.grid-6,
    .timeline-images.grid-7,
    .timeline-images.grid-8,
    .timeline-images.grid-9,
    .timeline-images.grid-10,
    .timeline-images.grid-11,
    .timeline-images.grid-12,
    .timeline-images.grid-13,
    .timeline-images.grid-14,
    .timeline-images.grid-15,
    .timeline-images.grid-16 {
        grid-template-columns: repeat(2, 1fr);
    }
}