fix: add --surface-subtle token, restore info grouping, and apply theme-aware favorite color

- Add --surface-subtle (oklch 3% opacity) to replace rgba(0,0,0,0.03)
- Fix info items, creator-info, civitai-view, modal-send-btn, header-actions
  to use --surface-subtle instead of --surface-hover
- Keep true hover states on --surface-hover
- Use light #d4a017 / dark #ffc107 for --favorite-color based on theme
- Replace hardcoded #ffc107 and #d4a017 with var(--favorite-color)

static/css/components/card.css

@@ -1,12 +1,12 @@
-/* 卡片网格布局 */
+/* Card grid layout */
 .card-grid {
     display: grid;
     grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); /* Base size */
     gap: 12px; /* Consistent gap for both row and column spacing */
     row-gap: 20px; /* Increase vertical spacing between rows */
     margin-top: var(--space-2);
-    padding-top: 4px; /* 添加顶部内边距，为悬停动画提供空间 */
-    padding-bottom: 4px; /* 添加底部内边距，为悬停动画提供空间 */
+    padding-top: 4px;
+    padding-bottom: 4px;
     width: 100%; /* Ensure it takes full width of container */
     max-width: 1400px; /* Base container width */
     margin-left: auto;
@@ -360,15 +360,19 @@
     align-self: flex-end;
 }
 
-.card-actions i:hover {
+.card-actions i:hover,
+.card-actions i:focus-visible {
     opacity: 0.9;
     transform: scale(1.1);
     background-color: rgba(255, 255, 255, 0.1);
+    outline: 2px solid var(--lora-accent);
+    outline-offset: 2px;
+    border-radius: var(--border-radius-xs);
 }
 
 .favorite-active {
-    color: #d4a017 !important;
-    text-shadow: 0 0 5px rgba(212, 160, 23, 0.5);
+    color: var(--favorite-color) !important;
+    text-shadow: 0 0 5px var(--favorite-glow);
 }
 
 @media (max-width: 1200px) {
@@ -404,9 +408,13 @@
     text-shadow: none;
 }
 
-.model-link a:hover {
+.model-link a:hover,
+.model-link a:focus-visible {
     opacity: 0.8;
     text-decoration: none;
+    outline: 2px solid var(--lora-accent);
+    outline-offset: 2px;
+    border-radius: var(--border-radius-xs);
 }
 
 /* Updated model name to fix text cutoff issues */