add at.link

src/web/styles/main.css

@@ -2640,3 +2640,101 @@ button.tab {
     color: #999;
   }
 }
+
+/* ==================== Link Page ==================== */
+.link-container {
+  max-width: 600px;
+  margin: 0 auto;
+  padding: 20px;
+}
+
+.link-empty {
+  text-align: center;
+  color: #888;
+  padding: 40px 20px;
+}
+
+.link-grid {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
+
+.link-item {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+  padding: 20px 24px;
+  border-radius: 12px;
+  text-decoration: none;
+  transition: transform 0.2s, box-shadow 0.2s;
+}
+
+.link-item:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
+}
+
+.link-icon {
+  width: 48px;
+  height: 48px;
+  flex-shrink: 0;
+}
+
+.link-icon svg {
+  width: 100%;
+  height: 100%;
+}
+
+.link-info {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.link-service {
+  font-size: 1.1rem;
+  font-weight: 600;
+}
+
+.link-username {
+  font-size: 0.95rem;
+  opacity: 0.8;
+}
+
+/* GitHub */
+.link-github {
+  background: linear-gradient(135deg, #24292e 0%, #1a1e22 100%);
+  color: #fff;
+}
+
+.link-github:hover {
+  background: linear-gradient(135deg, #2d3339 0%, #24292e 100%);
+}
+
+/* X (Twitter) */
+.link-x {
+  background: linear-gradient(135deg, #000000 0%, #14171a 100%);
+  color: #fff;
+}
+
+.link-x:hover {
+  background: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);
+}
+
+/* YouTube */
+.link-youtube {
+  background: linear-gradient(135deg, #ff0000 0%, #cc0000 100%);
+  color: #fff;
+}
+
+.link-youtube:hover {
+  background: linear-gradient(135deg, #ff1a1a 0%, #ff0000 100%);
+}
+
+/* Dark mode adjustments */
+@media (prefers-color-scheme: dark) {
+  .link-item:hover {
+    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
+  }
+}