diff --git a/public/apple-touch-icon.png b/public/apple-touch-icon.png
index bd048fb..5e443a1 100644
Binary files a/public/apple-touch-icon.png and b/public/apple-touch-icon.png differ
diff --git a/public/favicon.ico b/public/favicon.ico
index b18626d..7e0d68a 100644
Binary files a/public/favicon.ico and b/public/favicon.ico differ
diff --git a/public/favicon.png b/public/favicon.png
index bd8817e..aab2d9a 100644
Binary files a/public/favicon.png and b/public/favicon.png differ
diff --git a/src/deck/Deck.vue b/src/deck/Deck.vue
index 3ccef7f..bd2b2e5 100644
--- a/src/deck/Deck.vue
+++ b/src/deck/Deck.vue
@@ -75,7 +75,7 @@ function onTouchEnd(e: TouchEvent) {
       class="pointer-events-none absolute inset-x-0 top-0 z-20 flex items-center justify-between px-6 py-5 text-fg-muted"
     >
       <span class="flex items-center gap-2">
-        <img :src="markUrl" alt="SolLunar" class="size-7 rounded-md object-cover ring-1 ring-line" />
+        <img :src="markUrl" alt="SolLunar" class="size-8 object-contain" />
         <span class="font-display text-sm font-semibold tracking-wide text-fg">SolLunar</span>
       </span>
       <div class="flex items-center gap-3">
diff --git a/src/deck/assets/logo.webp b/src/deck/assets/logo.webp
index 4831c8d..05d2cc9 100644
Binary files a/src/deck/assets/logo.webp and b/src/deck/assets/logo.webp differ
diff --git a/src/deck/assets/mark.png b/src/deck/assets/mark.png
index cc38f7e..f186da8 100644
Binary files a/src/deck/assets/mark.png and b/src/deck/assets/mark.png differ
diff --git a/src/deck/slides/TitleSlide.vue b/src/deck/slides/TitleSlide.vue
index 5c55a21..23814eb 100644
--- a/src/deck/slides/TitleSlide.vue
+++ b/src/deck/slides/TitleSlide.vue
@@ -28,7 +28,7 @@ import logoUrl from '@/deck/assets/logo.webp'
         <img
           :src="logoUrl"
           alt="SolLunar — Energy · Intelligence · Harmony"
-          class="w-56 rounded-3xl shadow-2xl ring-1 ring-line-2 sm:w-64 lg:w-72"
+          class="w-64 drop-shadow-2xl sm:w-72 lg:w-80"
         />
       </div>