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)/solutions/solutions-content-v3.tsx

@@ -74,19 +74,19 @@ function HeroSection({ pageCopy }: { pageCopy?: PageCopy | null }) {
             transition={{ duration: 0.8, delay: 0.7, ease: EASE_OUT }}
             className="flex flex-col sm:flex-row gap-4 sm:gap-6"
           >
-            <a
+            <StaticLink
               href="/contact"
               className="group inline-flex items-center justify-center gap-3 px-10 py-5 font-semibold text-base bg-brand text-white transition-all duration-300 hover:bg-brand/90 min-h-[52px] touch-manipulation"
             >
               {ctaPrimary}
               <ArrowUpRight className="w-4 h-4 transition-transform duration-300 group-hover:translate-x-0.5 group-hover:-translate-y-0.5" />
-            </a>
-            <a
+            </StaticLink>
+            <StaticLink
               href="/products"
               className="inline-flex items-center justify-center gap-3 px-10 py-5 font-semibold text-base text-ink border border-border-primary hover:border-ink/30 transition-all duration-300 min-h-[52px] touch-manipulation"
             >
               {ctaSecondary}
-            </a>
+            </StaticLink>
           </motion.div>
 
           <motion.div
@@ -240,19 +240,19 @@ function CTASection({ pageCopy }: { pageCopy?: PageCopy | null }) {
             {ctaDescription}
           </p>
           <div className="flex flex-col sm:flex-row gap-4 sm:gap-6">
-            <a
+            <StaticLink
               href="/contact"
               className="group inline-flex items-center justify-center gap-3 px-10 py-5 font-semibold text-base bg-brand text-white transition-all duration-300 hover:bg-brand/90 min-h-[52px] touch-manipulation"
             >
               获取定制方案
               <ArrowUpRight className="w-4 h-4 transition-transform duration-300 group-hover:translate-x-0.5 group-hover:-translate-y-0.5" />
-            </a>
-            <a
+            </StaticLink>
+            <StaticLink
               href="/products"
               className="inline-flex items-center justify-center gap-3 px-10 py-5 font-semibold text-base text-ink border border-border-primary hover:border-ink/30 transition-all duration-300 min-h-[52px] touch-manipulation"
             >
               浏览产品
-            </a>
+            </StaticLink>
           </div>
         </motion.div>
       </div>