右键菜单优化

src/styles/site.css

@@ -377,6 +377,53 @@ a {
   white-space: nowrap;
 }
 
+.context-menu-native-hint {
+  position: fixed;
+  right: max(16px, env(safe-area-inset-right));
+  bottom: max(16px, env(safe-area-inset-bottom));
+  z-index: 900;
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  max-width: min(300px, calc(100vw - 32px));
+  border: 1px solid rgba(255, 255, 255, 0.58);
+  border-radius: 999px;
+  padding: 8px 12px;
+  color: #4f565b;
+  font-size: 0.84rem;
+  font-weight: 650;
+  line-height: 1.3;
+  background:
+    linear-gradient(145deg, rgba(255, 255, 255, 0.78), rgba(235, 248, 231, 0.68)),
+    rgba(245, 252, 241, 0.82);
+  box-shadow:
+    inset 0 1px 0 rgba(255, 255, 255, 0.86),
+    0 12px 30px rgba(44, 55, 63, 0.14);
+  backdrop-filter: blur(16px) saturate(165%);
+  -webkit-backdrop-filter: blur(16px) saturate(165%);
+  opacity: 0;
+  pointer-events: none;
+  transform: translate3d(0, 8px, 0);
+  transition:
+    opacity 0.18s ease,
+    transform 0.18s ease;
+}
+
+.context-menu-native-hint.is-visible {
+  opacity: 1;
+  transform: translate3d(0, 0, 0);
+}
+
+.context-menu-native-hint kbd {
+  border: 1px solid rgba(178, 194, 170, 0.52);
+  border-radius: 7px;
+  padding: 1px 6px;
+  color: var(--accent);
+  font: inherit;
+  background: rgba(255, 255, 255, 0.52);
+  box-shadow: inset 0 -1px 0 rgba(44, 55, 63, 0.08);
+}
+
 .nav-links a:hover,
 .nav-random:hover,
 .nav-search:hover,
@@ -858,6 +905,24 @@ a {
   color: #c1cdd2;
 }
 
+:root[data-theme='dark'] .context-menu-native-hint {
+  border-color: rgba(166, 184, 194, 0.2);
+  color: #e2ecef;
+  background:
+    linear-gradient(145deg, rgba(27, 39, 47, 0.9), rgba(10, 17, 22, 0.82)),
+    rgba(14, 22, 28, 0.84);
+  box-shadow:
+    inset 0 1px 0 rgba(255, 255, 255, 0.1),
+    0 12px 30px rgba(0, 0, 0, 0.32);
+}
+
+:root[data-theme='dark'] .context-menu-native-hint kbd {
+  border-color: rgba(166, 184, 194, 0.2);
+  color: var(--accent);
+  background: rgba(255, 255, 255, 0.08);
+  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.18);
+}
+
 .hero {
   width: min(var(--wide-width), calc(100% - (var(--page-gutter) * 2)));
   min-height: 360px;