fix: align CTA buttons in pricing cards

Remove inconsistent bottom margin and align-self:end from plan buttons
so both sit at the same grid row position. The trust row (row 5) already
provides bottom spacing for both cards via subgrid.

Author: pc-study

pricing.html

@@ -63,7 +63,7 @@
   font-family:var(--display);letter-spacing:-1px}
 .plan-free .plan-divider{margin:0 32px 16px}
 .plan-free .plan-features{padding:0 32px;margin-bottom:20px}
-.plan-free .plan-btn{margin:0 32px 28px;align-self:end}
+.plan-free .plan-btn{margin:0 32px}
 
 /* PRO PLAN */
 .plan-pop{border-color:rgba(199,70,52,.45);
@@ -85,7 +85,7 @@
 .plan-buy-type{font-size:.78rem;color:var(--text-dim);letter-spacing:1px}
 .plan-pop .plan-divider{margin:0 32px 16px}
 .plan-pop .plan-features{padding:0 32px;margin-bottom:20px}
-.plan-pop .plan-btn{margin:0 32px;align-self:end}
+.plan-pop .plan-btn{margin:0 32px}
 .plan-pop .plan-trust{margin:16px 32px 28px;display:flex;flex-wrap:wrap;gap:4px 14px;justify-content:center}
 .plan-badge{display:inline-block;background:var(--red);color:#fff;
   font-size:.62rem;font-weight:700;padding:3px 12px;border-radius:20px;margin-bottom:12px;letter-spacing:1px;text-transform:uppercase}
@@ -180,7 +180,7 @@
   .plan-big-price-free{font-size:2rem}
   .plan-free .plan-divider{margin:0 20px 14px}
   .plan-free .plan-features{padding:0 20px}
-  .plan-free .plan-btn{margin:0 20px 24px}
+  .plan-free .plan-btn{margin:0 20px}
   .plan-pop .plan-divider{margin:0 20px 14px}
   .plan-pop .plan-features{padding:0 20px}
   .plan-pop .plan-btn{margin:0 20px}

sw.js

@@ -1,4 +1,4 @@
-const CACHE_NAME = 'os-v32';
+const CACHE_NAME = 'os-v33';
 const STATIC_EXTS = /\.(css|js|json|woff2?|ttf|eot|svg|png|jpg|jpeg|webp|ico)$/i;
 const MAX_CACHE_ITEMS = 80;
 const NETWORK_TIMEOUT = 3000;