style(globals): 添加设置页输入框和代码高亮样式

- 添加 settings-input 输入框样式类
- 添加 Prism.js 代码语法高亮样式（VS Code Dark+ 主题）
- 支持多种代码 token 类型的颜色配置

src/app/globals.css

@@ -262,3 +262,113 @@ body {
   border-color: var(--color-primary);
   box-shadow: var(--shadow-input-focus);
 }
+
+/* ========================================
+   设置页面输入框
+   ======================================== */
+.settings-input {
+  appearance: none;
+  background-color: var(--color-bg-primary);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  padding: 8px 12px;
+  font-size: 14px;
+  color: var(--color-text-primary);
+}
+
+.settings-input::placeholder {
+  color: var(--color-text-placeholder);
+}
+
+.settings-input:focus {
+  outline: none;
+  border-color: var(--color-primary);
+  box-shadow: var(--shadow-input-focus);
+}
+
+.settings-input:disabled {
+  background-color: var(--color-bg-tertiary);
+  cursor: not-allowed;
+}
+
+/* ========================================
+   Prism.js 代码高亮样式 (VS Code Dark+)
+   ======================================== */
+code[class*="language-"],
+pre[class*="language-"] {
+  color: #d4d4d4;
+  text-shadow: none;
+  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
+  direction: ltr;
+  text-align: left;
+  white-space: pre;
+  word-spacing: normal;
+  word-break: normal;
+  line-height: 1.5;
+  tab-size: 4;
+  hyphens: none;
+}
+
+.token.comment,
+.token.prolog,
+.token.doctype,
+.token.cdata {
+  color: #6a9955;
+}
+
+.token.punctuation {
+  color: #d4d4d4;
+}
+
+.token.property,
+.token.tag,
+.token.boolean,
+.token.number,
+.token.constant,
+.token.symbol,
+.token.deleted {
+  color: #b5cea8;
+}
+
+.token.selector,
+.token.attr-name,
+.token.string,
+.token.char,
+.token.builtin,
+.token.inserted {
+  color: #ce9178;
+}
+
+.token.operator,
+.token.entity,
+.token.url,
+.language-css .token.string,
+.style .token.string {
+  color: #d4d4d4;
+}
+
+.token.atrule,
+.token.attr-value,
+.token.keyword {
+  color: #569cd6;
+}
+
+.token.function,
+.token.class-name {
+  color: #dcdcaa;
+}
+
+.token.regex,
+.token.important,
+.token.variable {
+  color: #d16969;
+}
+
+.token.important,
+.token.bold {
+  font-weight: bold;
+}
+
+.token.italic {
+  font-style: italic;
+}