refactor(link): 营销页站内链接统一 StaticLink（静态托管适配）+ 删除 0 引用死代码组件 + QA 页 client/server 拆分

src/app/(marketing)/home-content-v14.tsx

@@ -5,6 +5,7 @@ import Image from 'next/image';
 import { motion } from 'framer-motion';
 import { ScrollReveal, StaggerReveal } from '@/components/ui/scroll-reveal';
 import { Badge } from '@/components/ui/badge';
+import { StaticLink } from '@/components/ui/static-link';
 import { HeroProductVisual } from '@/components/sections/hero-product-visual';
 import { ArrowRight, Lightbulb, Database, Layers, Code, Puzzle, Server } from 'lucide-react';
 import { cn } from '@/lib/utils';
@@ -335,13 +336,13 @@ function TrustSection({ pageCopy }: { pageCopy?: HomePageCopy | null }) {
                 </div>
               ))}
             </div>
-            <a
+            <StaticLink
               href="/contact"
               className="group inline-flex shrink-0 items-center gap-2 text-sm font-semibold text-ink hover:text-brand transition-colors"
             >
               <span>{earlyCtaLabel}</span>
               <ArrowRight className="w-4 h-4 transition-transform duration-300 group-hover:translate-x-1" />
-            </a>
+            </StaticLink>
           </div>
         </StaggerReveal>
       </div>
@@ -398,7 +399,10 @@ function NarrativeSection({ pageCopy }: { pageCopy?: HomePageCopy | null }) {
             <StaggerReveal key={act.number} staggerDelay={0.08}>
               <div className="group relative h-full bg-white p-8 sm:p-10 md:p-12 transition-colors duration-300 hover:bg-bg-secondary">
                 <div className="flex items-start justify-between mb-8">
-                  <span className="text-4xl sm:text-5xl font-black text-text-hint tabular-nums leading-none">
+                  <span
+                    aria-hidden="true"
+                    className="text-4xl sm:text-5xl font-black text-text-hint tabular-nums leading-none"
+                  >
                     {act.number}
                   </span>
                 </div>
@@ -524,13 +528,13 @@ function CasesSection({ cases, pageCopy }: { cases?: Record<string, any>[]; page
               <p className="text-text-secondary leading-relaxed text-lg mb-8">
                 {casesDesc}
               </p>
-              <a
+              <StaticLink
                 href="/contact"
                 className="group inline-flex items-center gap-3 text-ink font-semibold text-sm"
               >
                 成为首批共创客户
                 <ArrowRight className="w-4 h-5 transition-transform duration-300 group-hover:translate-x-2 text-text-secondary group-hover:text-brand" />
-              </a>
+              </StaticLink>
             </ScrollReveal>
             <ScrollReveal delay={0.15}>
               <div className="bain-card p-10 sm:p-12 bg-bg-secondary">
@@ -556,13 +560,13 @@ function CasesSection({ cases, pageCopy }: { cases?: Record<string, any>[]; page
             </h2>
           </ScrollReveal>
           <ScrollReveal delay={0.1}>
-            <a
+            <StaticLink
               href="/cases"
               className="group inline-flex items-center gap-3 text-ink font-semibold text-sm"
             >
               查看全部案例
               <ArrowRight className="w-4 h-5 transition-transform duration-300 group-hover:translate-x-2 text-text-secondary group-hover:text-brand" />
-            </a>
+            </StaticLink>
           </ScrollReveal>
         </div>