chore: clean up mobile test files and update components

src/app/globals.css

@@ -38,9 +38,9 @@
   
   /* 文字色系 - 墨色层次 */
   --color-text-primary: #1C1C1C;
-  --color-text-secondary: #2D2D2D;
-  --color-text-tertiary: #4A4A4A;
-  --color-text-muted: #6B6B6B;
+  --color-text-secondary: #3D3D3D;
+  --color-text-tertiary: #5C5C5C;
+  --color-text-muted: #8C8C8C;
   
   /* 边框色系 */
   --color-border-primary: #E5E5E5;
@@ -211,38 +211,12 @@
   
   input:focus, textarea:focus {
     outline: none;
-    box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.3);
-  }
-  
-  button:focus-visible, a:focus-visible {
-    outline: 2px solid #C41E3A;
-    outline-offset: 2px;
   }
   
   ::selection {
     background-color: var(--color-text-primary);
     color: var(--color-bg-primary);
   }
-  
-  @media (prefers-contrast: high) {
-    :root {
-      --color-text-primary: #000000;
-      --color-text-secondary: #1A1A1A;
-      --color-text-tertiary: #2A2A2A;
-      --color-border-primary: #000000;
-      --color-border-secondary: #1A1A1A;
-    }
-  }
-  
-  @media (prefers-reduced-motion: reduce) {
-    *,
-    *::before,
-    *::after {
-      animation-duration: 0.01ms !important;
-      animation-iteration-count: 1 !important;
-      transition-duration: 0.01ms !important;
-    }
-  }
 }
 
 @layer utilities {

src/components/layout/breadcrumb.tsx

@@ -1,7 +1,7 @@
 'use client';
 
 import Link from 'next/link';
-import { ChevronRight, Home, ArrowLeft } from 'lucide-react';
+import { ChevronRight, Home } from 'lucide-react';
 
 interface BreadcrumbItem {
   label: string;
@@ -10,31 +10,20 @@ interface BreadcrumbItem {
 
 interface BreadcrumbProps {
   items: BreadcrumbItem[];
-  showBackButton?: boolean;
-  onBackClick?: () => void;
 }
 
-export function Breadcrumb({ items, showBackButton = false, onBackClick }: BreadcrumbProps) {
+export function Breadcrumb({ items }: BreadcrumbProps) {
   return (
-    <nav aria-label="breadcrumb" className="flex items-center space-x-2 text-sm text-[#4A4A4A] py-4 px-4 md:px-0">
-      {showBackButton && (
-        <button
-          onClick={onBackClick}
-          className="flex items-center mr-2 hover:text-[#C41E3A] transition-colors focus:outline-none focus:ring-2 focus:ring-[#C41E3A] focus:ring-offset-2"
-          aria-label="返回"
-        >
-          <ArrowLeft className="w-5 h-5" />
-        </button>
-      )}
-      <Link href="/" className="flex items-center hover:text-[#C41E3A] transition-colors focus:outline-none focus:ring-2 focus:ring-[#C41E3A] focus:ring-offset-2 rounded" aria-label="首页">
+    <nav aria-label="breadcrumb" className="flex items-center space-x-2 text-sm text-[#5C5C5C] py-4">
+      <Link href="/" className="flex items-center hover:text-[#C41E3A] transition-colors">
         <Home className="w-4 h-4" />
       </Link>
       {items.map((item, index) => (
         <div key={index} className="flex items-center">
-          <ChevronRight className="w-4 h-4 text-[#E5E5E5] flex-shrink-0" aria-hidden="true" />
+          <ChevronRight className="w-4 h-4 text-[#E5E5E5]" />
           <Link
             href={item.href}
-            className="ml-2 hover:text-[#C41E3A] transition-colors focus:outline-none focus:ring-2 focus:ring-[#C41E3A] focus:ring-offset-2 rounded truncate max-w-[120px] md:max-w-none"
+            className="ml-2 hover:text-[#C41E3A] transition-colors"
           >
             {item.label}
           </Link>