fix(web): normalize "Runs on" platform logo sizing

web/src/pages/index.astro

@@ -463,7 +463,7 @@ const platformGroups = [
                 {g.items.map((p) => (
                   <div class="plat-tile">
                     <span class={`plat-chip${p.darkChip ? ' plat-chip--dark' : ''}`} aria-hidden="true">
-                      <img class="plat-logo" src={`/logos/png/${p.logo}.png`} alt="" loading="lazy" decoding="async" width="26" height="26" />
+                      <img class="plat-logo" data-logo={p.logo} src={`/logos/png/${p.logo}.png`} alt="" loading="lazy" decoding="async" width="26" height="26" />
                     </span>
                     <span class="plat-name">{p.name}</span>
                   </div>
@@ -1105,7 +1105,14 @@ const platformGroups = [
         box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5);
         transition: box-shadow 0.18s ease;
       }
-      .plat-logo { display: block; width: 26px; height: 26px; object-fit: contain; }
+      /* Logos are pre-trimmed to a tight, centred square canvas, so a single
+         box size gives even optical weight. Square marks sit at 25px; wide
+         wordmarks (Oracle, IBM, Ubicloud) are capped by width so they read at
+         the same stroke weight without ballooning the chip vertically. */
+      .plat-logo { display: block; width: 25px; height: 25px; object-fit: contain; }
+      .plat-logo[data-logo='oracle'] { width: 30px; height: 30px; }
+      .plat-logo[data-logo='ibm'] { width: 28px; height: 28px; }
+      .plat-logo[data-logo='ubicloud'] { width: 29px; height: 29px; }
       /* Tiger Data's badge is a pale yellow circle with a white tiger cutout —
          it vanishes on the light neutral chip. Give just that tile a dark chip
          so the badge reads clearly in both the light and dark themes. */