/* Changelog 样式 */
.changelog-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.page-title {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 2.5rem;
    text-align: center;
}

/* 空状态 */
.changelog-empty {
    text-align: center;
    padding: 4rem 2rem;
}
.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}
.empty-text {
    color: var(--muted);
    font-size: 1rem;
}

/* 时间线 */
.changelog-timeline {
    position: relative;
    padding-left: 2rem;
}

.changelog-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
    padding-left: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    transform: translateX(-4px);
}

.timeline-date {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.version-badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    background: var(--accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
}

.date-text {
    color: var(--muted);
    font-size: 0.875rem;
}

.timeline-content {
    background: var(--paper);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
}

.change-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.75rem;
    padding-left: 0.5rem;
    border-left: 3px solid var(--accent);
}

.change-title.added {
    border-left-color: #22c55e;
}
.change-title.fixed {
    border-left-color: #ef4444;
}
.change-title.improved {
    border-left-color: #3b82f6;
}
.change-title.removed {
    border-left-color: #f97316;
}

.change-body {
    color: var(--ink);
    line-height: 1.7;
    font-size: 0.95rem;
}

.change-body ul {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
}

.change-body li {
    margin-bottom: 0.4rem;
}

/* 响应式 */
@media (max-width: 640px) {
    .changelog-container {
        padding: 1.5rem 1rem;
    }
    .page-title {
        font-size: 1.5rem;
    }
    .changelog-timeline {
        padding-left: 1.5rem;
    }
    .changelog-timeline::before {
        width: 1px;
    }
    .timeline-item::before {
        width: 8px;
        height: 8px;
        transform: translateX(-3.5px);
    }
}