/* ============================================================
   changelog.css · 更新日志页：版本时间线
   ============================================================ */

.timeline { position: relative; padding-left: 34px; }

.timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--blob-2), transparent);
}

.tl-item { position: relative; margin-bottom: 40px; }

.tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 34px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  box-shadow: 0 0 0 5px var(--bg), 0 0 18px rgba(0, 113, 227, 0.65);
}

.tl-card { padding: clamp(24px, 3.4vw, 40px); }

.tl-head { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }

.tl-ver {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.tl-tag {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #34c759, #248a3d);
  box-shadow: 0 6px 16px rgba(52, 199, 89, 0.4);
}

.tl-tag.latest { background: linear-gradient(135deg, var(--accent-2), var(--accent)); box-shadow: 0 6px 16px rgba(0, 113, 227, 0.4); }

.tl-group { margin-bottom: 26px; }
.tl-group:last-child { margin-bottom: 0; }

.tl-group h4 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 750;
  letter-spacing: 0.02em;
  margin-bottom: 14px;
}

.tl-group h4 .g-dot { width: 9px; height: 9px; border-radius: 3px; transform: rotate(45deg); }
.g-add { background: #34c759; box-shadow: 0 0 10px rgba(52, 199, 89, 0.6); }
.g-fix { background: #ff9f0a; box-shadow: 0 0 10px rgba(255, 159, 10, 0.6); }
.g-imp { background: #0a84ff; box-shadow: 0 0 10px rgba(10, 132, 255, 0.6); }

.tl-group ul { list-style: none; display: grid; gap: 12px; }

.tl-group li {
  position: relative;
  padding: 14px 18px 14px 20px;
  border-radius: var(--r-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-hi);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  color: var(--text-2);
  font-size: 14.5px;
  line-height: 1.8;
  transition: transform 0.4s var(--spring);
}

.tl-group li:hover { transform: translateX(5px); }
.tl-group li b { color: var(--text); }