.dual-track-nav{display:flex;gap:14px;flex-wrap:wrap;margin:18px auto;padding:16px 22px;max-width:1120px;border:1px solid var(--card-border,#d7dfdf);border-radius:14px;background:var(--card-bg,#eef3f5);color:var(--card-title,#243344);font:14px "Microsoft YaHei",sans-serif}.dual-track-nav a{padding:8px 12px;text-decoration:none}.dual-track-nav a:not(:first-child){background:var(--card-accent,#315b75);color:white;border-radius:8px}.dual-trace{font:13px/1.8 "Microsoft YaHei",sans-serif;color:var(--card-muted,#657184);margin:12px 0}.dual-trace summary{cursor:pointer}.dual-trace a{text-decoration:underline}@media print{.dual-track-nav,.dual-trace{display:none!important}}
.hub-shell > .dual-track-nav{grid-column:1 / -1;width:100%;min-width:0;margin:0}