feat(ui): optimize CTA buttons with contextual copy and fix static export build issues

CTA Optimization:

- Implement scenario-based CTA text across 6 key locations

- Add responsive Header CTA with icon+compact design

- Enhance CTA Section with vision-driven copy

Bug Fixes:

- Fix useSearchParams() build failure with dynamic import wrapper

- Remove useSearchParams() from PageTransition component

- Fix React 19 useEffect lint errors via useSyncExternalStore

UI Enhancements:

- Add ripple effects and gradient animations to Button

- Enhance loading skeleton with branded pulse animation

src/components/sections/hero-section-v2.tsx

@@ -4,6 +4,7 @@ import { useCallback, useRef, useState } from 'react';
 import { motion } from 'framer-motion';
 import { StaticLink } from '@/components/ui/static-link';
 import { Button } from '@/components/ui/button';
+import { HeroInkBackground } from '@/components/ui/hero-ink-background';
 import { COMPANY_INFO } from '@/lib/constants';
 import { ArrowRight, MessageSquare, Search, Rocket, Handshake } from 'lucide-react';
 import { useReducedMotion } from '@/hooks/use-reduced-motion';
@@ -51,13 +52,7 @@ export function HeroSectionV2() {
       aria-labelledby="hero-heading"
       className="relative min-h-screen flex flex-col justify-center overflow-hidden bg-[var(--color-bg-primary)]"
     >
-      <div
-        className="pointer-events-none absolute inset-0"
-        style={{
-          background:
-            'radial-gradient(ellipse at 15% 40%, rgba(var(--color-brand-primary-rgb), 0.05) 0%, transparent 55%), radial-gradient(ellipse at 85% 25%, rgba(var(--color-primary-rgb), 0.04) 0%, transparent 50%), radial-gradient(ellipse at 50% 90%, rgba(var(--color-brand-primary-rgb), 0.03) 0%, transparent 40%)',
-        }}
-      />
+      <HeroInkBackground />
 
       <div className="container-wide py-24 md:py-32 lg:py-40 relative z-10 flex-1 flex items-center">
         <div className="grid grid-cols-1 lg:grid-cols-2 gap-12 lg:gap-20 items-center w-full">
@@ -102,7 +97,7 @@ export function HeroSectionV2() {
             >
               <Button size="lg" asChild>
                 <StaticLink href="/contact">
-                  立即咨询
+                  免费获取定制方案
                   <ArrowRight className="w-4 h-4 ml-2" />
                 </StaticLink>
               </Button>