.changelog-page {
    margin-bottom: 2rem;
}

.changelog-col {
    min-height: 200px;
}

.changelog-col-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: #1a202c;
}

.changelog-roadmap-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.changelog-roadmap-head .changelog-col-title {
    margin-bottom: 0;
}

/* 时间线：ul 一条贯穿虚线 + 真实圆点 DOM（避免空 span 伪元素失效） */
.changelog-timeline-wrap {
    position: relative;
}

.changelog-timeline-pending .changelog-timeline {
    min-height: 4rem;
}

.changelog-timeline {
    --changelog-track-width: 12px;
    --changelog-dot-size: 12px;
    --changelog-dot-offset-top: 0.35rem;
    list-style: none;
    margin: 0;
    padding: 0;
    position: relative;
}

/* 整列表一条连续虚线，分页追加 li 后自动变长 */
.changelog-timeline::before {
    content: '';
    position: absolute;
    left: calc(var(--changelog-track-width) / 2);
    top: calc(var(--changelog-dot-offset-top) + var(--changelog-dot-size) / 2);
    bottom: 0;
    border-left: 2px dashed #cbd5e0;
    transform: translateX(-50%);
    z-index: 0;
    pointer-events: none;
}

.changelog-timeline-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding-bottom: 1.75rem;
    position: relative;
    z-index: 1;
}

.changelog-timeline-item:last-child {
    padding-bottom: 0;
}

.changelog-timeline-track {
    flex: 0 0 var(--changelog-track-width);
    width: var(--changelog-track-width);
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.changelog-timeline-dot {
    display: block;
    width: var(--changelog-dot-size);
    height: var(--changelog-dot-size);
    margin-top: var(--changelog-dot-offset-top);
    border: 2px solid #3182ce;
    border-radius: 50%;
    background-color: #fff;
    box-sizing: border-box;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.changelog-timeline-content {
    flex: 1;
    min-width: 0;
}

.changelog-timeline-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.35rem;
}

.changelog-timeline-time {
    font-size: 0.875rem;
    color: #718096;
}

.changelog-badge-new {
    display: inline-block;
    font-size: 0.75rem;
    line-height: 1.2;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    background: #e53e3e;
    color: #fff;
    font-weight: 500;
}

.changelog-timeline-body {
    font-size: 0.95rem;
    color: #2d3748;
    line-height: 1.6;
    white-space: pre-line;
}

.changelog-timeline-empty {
    color: #718096;
    font-size: 0.9rem;
    padding-left: 0.25rem;
}

.changelog-releases-sentinel {
    height: 1px;
    width: 100%;
    visibility: hidden;
}

.changelog-load-more,
.changelog-load-end {
    font-size: 0.875rem;
    color: #718096;
    text-align: center;
    padding: 0.75rem 0 0.25rem;
}

.changelog-load-more.is-loading {
    color: #3182ce;
}

/* 待开发清单 */
.changelog-roadmap-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.changelog-roadmap-item {
    padding: 0.85rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.changelog-roadmap-item:last-child {
    border-bottom: none;
}

.changelog-roadmap-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.4rem;
}

.changelog-roadmap-tag {
    font-size: 0.75rem;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    background: #edf2f7;
    color: #4a5568;
}

.changelog-roadmap-tag-priority-high {
    background: #fed7d7;
    color: #c53030;
}

.changelog-roadmap-tag-priority-mid {
    background: #feebc8;
    color: #c05621;
}

.changelog-roadmap-tag-status-progress {
    background: #bee3f8;
    color: #2b6cb0;
}

.changelog-roadmap-content {
    font-size: 0.95rem;
    color: #2d3748;
    line-height: 1.55;
    white-space: pre-line;
}

.changelog-roadmap-empty {
    color: #718096;
    font-size: 0.9rem;
}

@media (max-width: 991.98px) {
    .changelog-col-roadmap {
        margin-top: 2rem;
        padding-top: 2rem;
        border-top: 1px solid #e2e8f0;
    }
}