style: slim down landing announcement bar

Remove the [NEW] badge, reduce vertical padding, and use a smaller font
for the purple dashed announcement strip.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: DavertMik

src/components/Announcement.astro

@@ -8,7 +8,6 @@ import { announcement } from '../config/announcement';
     announcement.enabled && (
         <div class="cc-announce-row">
             <a href={announcement.link} class="cc-announce">
-                {announcement.tag && <span class="cc-announce-tag">[{announcement.tag}]</span>}
                 <span class="cc-announce-text">{announcement.text}</span>
             </a>
         </div>
@@ -29,11 +28,11 @@ import { announcement } from '../config/announcement';
         align-items: center;
         justify-content: flex-start;
         gap: 0.5rem;
-        padding: 1rem;
+        padding: 0.5rem 1rem;
         border-radius: 5px;
         border: 2px dashed color-mix(in srgb, var(--cc-announce) 34%, transparent);
         background: color-mix(in srgb, var(--cc-announce) 3%, transparent);
-        font-size: 0.775rem;
+        font-size: 0.7rem;
         font-weight: bold;
         line-height: 1.3;
         color: var(--cc-announce);
@@ -44,12 +43,6 @@ import { announcement } from '../config/announcement';
         border-color: color-mix(in srgb, var(--cc-announce) 55%, transparent);
         background: color-mix(in srgb, var(--cc-announce) 7%, transparent);
     }
-    .cc-announce-tag {
-        flex-shrink: 0;
-        font-weight: 700;
-        letter-spacing: 0.04em;
-        color: var(--cc-announce);
-    }
     .cc-announce-text {
         position: absolute;
         left: 50%;