/* ========================================
 * [about_timeline] — 个人历程时间线
 * 配对短代码: shortcodes/about_timeline.php
 * ======================================== */

.about-timeline-list {
  position: relative;
  padding-left: 0;
}

.about-timeline-item {
  display: flex;
}

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

/* 竖线 + 圆点 */
.about-timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 12px;
}

.about-timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: 2px solid color-mix(in srgb, var(--color-primary) 30%, transparent);
  flex-shrink: 0;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary) 12%, transparent);
  transition: box-shadow var(--transition-base) var(--ease-in-out);
}

.about-timeline-item:hover .about-timeline-dot {
  box-shadow: 0 0 0 8px color-mix(in srgb, var(--color-primary) 20%, transparent);
}

.about-timeline-line {
  width: 2px;
  flex: 1;
  background: var(--color-border);
  margin-top: var(--space-2);
}

/* 内容区 */
.about-timeline-body {
  flex: 1;
  min-width: 0;
  margin-left: var(--space-5);
  padding-bottom: var(--space-6);
}

.about-timeline-year {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
}

.about-timeline-title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  line-height: var(--leading-tight);
}

.about-timeline-desc {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

@media (max-width: 767px) {
  .about-timeline-body {
    margin-left: var(--space-4);
    padding-bottom: var(--space-5);
  }
}