feat: one breadcrumb, same place and style on every inner page

- Plugin: vc_breadcrumb_trail()/vc_breadcrumb_html(); tours, region, city
  and tag pages show Home / (Region) / Page in the banner instead of the
  generic 'Tour & Travel' label; the tour page uses the same helper
- Theme: blog list shows Home / Blog; blog post title, breadcrumb and
  meta move into the banner like the other pages
- Shared style: title's colour (white in photo banners, black on About),
  softer links, current page bold and shortened if long - also on phones
- Plugin 1.9.6, theme 1.0.16

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

viator-collector/includes/class-vc-display.php

@@ -266,6 +266,17 @@ class VC_Display {
 					. '.vc-fullwidth .site-content,.vc-fullwidth .ast-container,'
 					. '.vc-fullwidth .entry-content,.vc-fullwidth .site-main>article'
 					. '{overflow:visible!important;}',
+				// Breadcrumb — one style on every page (the theme's design pages use
+				// the same rules): takes the colour of the title it sits above,
+				// links softer, current page bold and shortened if long.
+				'.vc-app.vc-app .crumbs{color:inherit;}',
+				'.vc-app.vc-app .crumbs__list{color:inherit;font-size:.8125rem;font-weight:500;}',
+				'.vc-app.vc-app .crumbs__list a{opacity:.75;}',
+				'.vc-app.vc-app .crumbs__list a:hover{opacity:1;}',
+				'.vc-app.vc-app .crumbs__list [aria-current]{max-width:min(40ch,60vw);overflow:hidden;font-weight:700;text-overflow:ellipsis;white-space:nowrap;}',
+				'.vc-app.vc-app .hero__content>.crumbs{margin-block-end:calc(var(--sp-1) * -1);}',
+				// In a banner the title is white, so the breadcrumb is too.
+				'.vc-app.vc-app .hero .crumbs{color:var(--c-white);}',
 				// FAQ question buttons must stay flat — Astra gives <button> a shadow.
 				'.vc-app.vc-app .acc__q{box-shadow:none!important;}',
 				// Astra colours every heading on the element itself (h1–h6 and