The 开通会员 chip rendered in the .jb-red orange gradient instead of the
legacy metallic .payvip-icon gradient. The markup always carried
payvip-icon, but core/buttons.css restates the legacy .but block and is
bundled into public.css, which loads after main.css. Same specificity,
later in the cascade, so its background / color / border / text-shadow
declarations outrank .payvip-icon and replace the payvip surface with
whatever .jb-* skin happens to be on the element.
The reference theme has no such compatibility layer, so there its
.payvip-icon declarations are the last word and the chip shows the
metallic gradient with #ece0e0 text, no border and no text shadow.
A previous fix restored the surface only for the user-card CTA, scoped to
.aksrt-header-userbox .pay-vip.but.payvip-icon, which left the top-nav
chip (and the guest CTA, and the user-card status bar) on the wrong
gradient. Re-assert the legacy .payvip-icon declarations unscoped in
header-userbox.css, which loads after core/buttons.css, and complete the
property set with border: none and text-shadow: none so the chip no
longer carries the 1px transparent border the .but block adds.
Verified with a cascade resolver that replays the real stylesheet load
order (bootstrap, main, public, header-userbox) against the reference
theme's own order: background, color, --this-color, border, text-shadow,
border-radius, padding, margin, font-size, display, overflow and position
now resolve identically for both the publish and the VIP chip.