.continuity-rail-shell{position:sticky;top:78px;z-index:14;margin:0 0 14px;padding:14px 16px;background:rgba(255,255,255,.97);border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 24px rgba(33,46,73,.07);backdrop-filter:blur(14px)}.continuity-rail-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:10px}.continuity-rail-head h2{margin:2px 0 0;font-size:1rem}.continuity-rail-head .link-button{padding:4px 0}.continuity-rail-summary{margin:0 0 10px;color:var(--muted);font-size:.78rem;line-height:1.4}.continuity-rail-track{display:flex;gap:8px;overflow-x:auto;padding:2px 2px 8px;scroll-snap-type:x proximity;overscroll-behavior-inline:contain}.continuity-stop{position:relative;display:grid;grid-template-columns:auto 14px minmax(150px,220px);align-items:start;gap:8px;flex:0 0 auto;min-width:230px;max-width:290px;text-align:left;border:1px solid var(--line);background:var(--surface2);border-radius:14px;padding:10px 11px;cursor:pointer;scroll-snap-align:start;color:var(--text)}.continuity-stop:hover,.continuity-stop:focus-visible{border-color:#9db7d3;background:#f4f8fc;outline:0}.continuity-stop-date{font-size:.72rem;font-weight:800;color:var(--brand);white-space:nowrap;padding-top:2px}.continuity-stop-marker{width:10px;height:10px;border-radius:50%;background:var(--brand);margin-top:3px;box-shadow:0 0 0 3px #e9f0f8}.continuity-stop-body{display:grid;gap:2px;min-width:0}.continuity-stop-body strong{font-size:.82rem;overflow-wrap:anywhere}.continuity-stop-label{font-size:.78rem;color:var(--muted);line-height:1.35;overflow-wrap:anywhere}.continuity-stop-source{width:max-content;max-width:100%;margin-top:3px;border:1px solid var(--line);border-radius:999px;padding:2px 6px;font-size:.62rem;font-weight:800;letter-spacing:.035em;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.continuity-rail-empty{width:100%;padding:12px;border:1px dashed var(--line);border-radius:12px;color:var(--muted);font-size:.84rem}.timeline-item.continuity-focus{border-radius:12px;background:#f4f8fc;box-shadow:inset 3px 0 0 var(--brand);padding-left:10px;padding-right:10px}.timeline-item.continuity-focus:focus{outline:2px solid #9db7d3;outline-offset:3px}@media(max-width:760px){.continuity-rail-shell{top:72px;margin-left:-4px;margin-right:-4px;padding:12px}.continuity-rail-head{display:grid;gap:4px}.continuity-stop{grid-template-columns:1fr 12px;min-width:210px}.continuity-stop-date{grid-column:1}.continuity-stop-marker{grid-column:2;grid-row:1}.continuity-stop-body{grid-column:1/-1}.continuity-rail-track{padding-bottom:10px}}