/* ========================================
   时光轴样式
   ======================================== */

/* 文章日历样式 - 响应式优化 */
.calendar-container {
    display: flex;
    flex-direction: column;
    gap: clamp(2rem, 3vw, 3rem);
}

.calendar-year {
    margin-bottom: 2rem;
}

.calendar-year-title {
    color: #2c5f7c;
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
}

/* GitHub风格日历 - 自适应优化 + 居中 */
.github-calendar {
    background: white;
    border-radius: 12px;
    padding: clamp(1rem, 2vw, 1.5rem);
    overflow-x: auto;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
}

.github-calendar-graph {
    display: inline-block;
    min-width: fit-content;
}

.github-calendar-months {
    display: flex;
    margin-bottom: 8px;
    padding-left: 30px;
}

.github-calendar-month-spacer {
    width: 30px;
}

.github-calendar-month {
    font-size: 0.75rem;
    color: #666;
    font-weight: 500;
}

.github-calendar-body {
    display: flex;
    gap: 4px;
}

.github-calendar-weekdays {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding-right: 4px;
}

.github-calendar-weekday {
    height: 11px;
    line-height: 11px;
    font-size: 0.65rem;
    color: #666;
    text-align: right;
}

.github-calendar-weeks {
    display: flex;
    gap: 3px;
}

.github-calendar-week {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.github-calendar-day {
    width: 11px;
    height: 11px;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid rgba(27, 31, 35, 0.06);
}

.github-calendar-day.empty {
    background: transparent;
    border: none;
    cursor: default;
}

.github-calendar-day.level-0 {
    background: #ebedf0;
}

.github-calendar-day.level-1 {
    background: #c6e48b;
}

.github-calendar-day.level-2 {
    background: #7bc96f;
}

.github-calendar-day.level-3 {
    background: #239a3b;
}

.github-calendar-day.level-4 {
    background: #196127;
}

.github-calendar-day:not(.empty):hover {
    border: 1px solid rgba(27, 31, 35, 0.3);
    transform: scale(1.2);
}

.github-calendar-legend {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    margin-top: 12px;
    font-size: 0.75rem;
    color: #666;
}

.github-calendar-legend-item {
    width: 11px;
    height: 11px;
    border-radius: 2px;
    border: 1px solid rgba(27, 31, 35, 0.06);
}

.github-calendar-legend-item.level-0 {
    background: #ebedf0;
}

.github-calendar-legend-item.level-1 {
    background: #c6e48b;
}

.github-calendar-legend-item.level-2 {
    background: #7bc96f;
}

.github-calendar-legend-item.level-3 {
    background: #239a3b;
}

.github-calendar-legend-item.level-4 {
    background: #196127;
}

/* 时间列表样式 - 响应式优化 */
.timeline-list-container {
    max-width: min(1000px, 100%);
    width: 100%;
    margin: 0 auto;
}

.timeline-year-section {
    margin-bottom: clamp(2rem, 3vw, 3rem);
}

.timeline-year-header {
    background: linear-gradient(135deg, #4fc3f7 0%, #2c5f7c 100%);
    color: white;
    padding: clamp(0.8rem, 1.5vw, 1rem) clamp(1.5rem, 2vw, 2rem);
    border-radius: 25px;
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    font-weight: 600;
    text-align: center;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px rgba(79, 195, 247, 0.3);
}

.timeline-articles-list {
    background: white;
    border-radius: 15px;
    padding: clamp(1rem, 2vw, 1.5rem);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.timeline-article-item {
    display: flex;
    align-items: center;
    gap: clamp(0.5rem, 1vw, 1rem);
    padding: clamp(0.8rem, 1.5vw, 1rem);
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s;
    cursor: pointer;
    border-radius: 8px;
}

.timeline-article-item:last-child {
    border-bottom: none;
}

.timeline-article-item:hover {
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.05) 0%, rgba(44, 95, 124, 0.05) 100%);
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(79, 195, 247, 0.15);
}

.timeline-article-date {
    min-width: clamp(100px, 15vw, 120px);
    color: #4fc3f7;
    font-weight: 600;
    font-size: clamp(0.85rem, 1.2vw, 0.95rem);
    white-space: nowrap;
}

.timeline-article-title {
    flex: 1;
    color: #2c5f7c;
    font-size: clamp(0.95rem, 1.3vw, 1.05rem);
    line-height: 1.5;
}

.timeline-article-category {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: #2c5f7c;
    padding: clamp(0.25rem, 0.5vw, 0.3rem) clamp(0.6rem, 1vw, 0.8rem);
    border-radius: 15px;
    font-size: clamp(0.75rem, 1vw, 0.85rem);
    font-weight: 500;
    white-space: nowrap;
}

/* 时间轴样式 - 响应式优化 */
.timeline-axis-container {
    max-width: min(1200px, 100%);
    width: 100%;
    margin: 0 auto;
    position: relative;
    padding: clamp(1.5rem, 2vw, 2rem) 0;
}

/* 中间的时间线 */
.timeline-axis-container::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #4fc3f7 0%, #2c5f7c 100%);
    transform: translateX(-50%);
}

.timeline-year-marker {
    position: relative;
    text-align: center;
    margin: 3rem 0;
}

.timeline-year-badge {
    display: inline-block;
    background: linear-gradient(135deg, #4fc3f7 0%, #2c5f7c 100%);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(79, 195, 247, 0.4);
    position: relative;
    z-index: 2;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
}

.timeline-item.left {
    justify-content: flex-start;
}

.timeline-item.right {
    justify-content: flex-end;
}

.timeline-content {
    width: 45%;
    position: relative;
}

.timeline-item.left .timeline-content {
    padding-right: 3rem;
}

.timeline-item.right .timeline-content {
    padding-left: 3rem;
}

/* 时间节点 */
.timeline-dot {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: white;
    border: 4px solid #4fc3f7;
    border-radius: 50%;
    z-index: 3;
    box-shadow: 0 0 0 4px rgba(79, 195, 247, 0.2);
    transition: all 0.3s;
}

.timeline-item:hover .timeline-dot {
    transform: translate(-50%, -50%) scale(1.3);
    box-shadow: 0 0 0 8px rgba(79, 195, 247, 0.3);
}

/* 连接线 */
.timeline-connector {
    position: absolute;
    top: 50%;
    width: 3rem;
    height: 2px;
    background: #4fc3f7;
}

.timeline-item.left .timeline-connector {
    right: 0;
}

.timeline-item.right .timeline-connector {
    left: 0;
}

/* 文章卡片 */
.timeline-article-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s;
    cursor: pointer;
}

.timeline-article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.timeline-article-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.timeline-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.timeline-article-card:hover .timeline-article-image img {
    transform: scale(1.1);
}

.timeline-article-category-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(79, 195, 247, 0.9);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.timeline-article-body {
    padding: 1.5rem;
}

.timeline-article-header h3 {
    color: #2c5f7c;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.timeline-article-meta {
    color: #999;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.timeline-article-excerpt {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.timeline-article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid #f0f0f0;
}

.timeline-article-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: #999;
}

.timeline-article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.timeline-article-tag {
    background: #f0f8ff;
    color: #4fc3f7;
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* 响应式设计 - 多断点优化 */

/* 大屏幕 (1200px - 1600px) */
@media (min-width: 1200px) and (max-width: 1600px) {
    .github-calendar {
        padding: 1.2rem;
    }
}

/* 中等屏幕 (1024px - 1199px) */
@media (min-width: 1024px) and (max-width: 1199px) {
    .github-calendar {
        padding: 1rem;
    }
    
    .github-calendar-day {
        width: 10px;
        height: 10px;
    }
    
    .github-calendar-legend-item {
        width: 10px;
        height: 10px;
    }
}

/* 平板屏幕 (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .github-calendar {
        padding: 0.9rem;
    }
    
    .github-calendar-day {
        width: 9px;
        height: 9px;
    }
    
    .github-calendar-weeks {
        gap: 2px;
    }
    
    .github-calendar-week {
        gap: 2px;
    }
    
    .github-calendar-legend-item {
        width: 9px;
        height: 9px;
    }
    
    .timeline-article-item {
        flex-wrap: wrap;
    }
}

/* 手机屏幕 (<768px) */
@media (max-width: 767px) {
    .github-calendar {
        padding: 0.8rem;
    }
    
    .github-calendar-month {
        font-size: 0.7rem;
    }
    
    .github-calendar-weekday {
        font-size: 0.6rem;
        height: 9px;
        line-height: 9px;
    }
    
    .github-calendar-day {
        width: 8px;
        height: 8px;
    }
    
    .github-calendar-weeks {
        gap: 2px;
    }
    
    .github-calendar-week {
        gap: 2px;
    }
    
    .github-calendar-legend {
        font-size: 0.7rem;
    }
    
    .github-calendar-legend-item {
        width: 8px;
        height: 8px;
    }
    
    .timeline-axis-container::before {
        left: 30px;
    }
    
    .timeline-item {
        justify-content: flex-end !important;
    }
    
    .timeline-content {
        width: calc(100% - 60px) !important;
        padding-left: 3rem !important;
        padding-right: 0 !important;
    }
    
    .timeline-dot {
        left: 30px !important;
    }
    
    .timeline-connector {
        left: 30px !important;
        right: auto !important;
    }
    
    .timeline-article-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .timeline-article-date {
        min-width: auto;
        font-size: 0.85rem;
    }
    
    .timeline-article-title {
        font-size: 0.95rem;
    }
    
    .timeline-article-category {
        font-size: 0.75rem;
        padding: 0.25rem 0.6rem;
    }
}