feat(ui): 营销站 UI/UE/UX 治理 P0→P3 收官

复评（impeccable critique）全部 Priority Issues 与 Minor Observations 落地：
- P0 数字口径：MetricsBasisNote 单一真源 + metrics-basis.test fs 防线，接入
  products/solutions/services/home/about；纯渲染端加角注，不动 DB/seed 值
- P1 转化断头路：敬请期待态 + 404 语境出口 + services 空态双出口
- P1 首页并卡：TrustSection 早鸟横幅并入 CasesSection 单张深色共创卡
- P2 CTA 治理：CONSULT_CTA_ALLOWLIST 白名单 + 逐字符扫描器，/contact CTA 全归一
- P3 polish：footer 补 服务/公司列、contact 死三元/空槽/toast、GlobalErrorTracker 幂等日志
- 文档同源：PRODUCT/CONTEXT 动效带统一 180–280ms；DESIGN.md 立 The 10px Floor；
  font-floor.test 守卫禁止再引入 <10px（保留 10/11px 有意 Bain 微标签）

Gates: type-check 0 · jest 1581/132 · lint 0e/126w · contrast 7/7 · headings 10/10

src/app/(marketing)/services/service-detail-content-v4.tsx

@@ -2,6 +2,7 @@
 
 import { motion } from 'framer-motion';
 import { CTAButton } from '@/components/ui/cta-button';
+import { CTA_LABELS } from '@/lib/constants/cta-labels';
 import { CheckCircle2, Zap, Clock, Users, Award, TrendingUp, Shield } from 'lucide-react';
 import type { LucideIcon } from 'lucide-react';
 import type { Service } from '@/lib/constants/services';
@@ -15,14 +16,14 @@ function DetailHero({ service }: { service: Service }) {
   const firstBenefit = service.benefits?.[0] || '效率提升 40%';
 
   return (
-    <section className="relative min-h-[85vh] flex items-center overflow-hidden bg-bg-primary">
-      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10 w-full py-28 sm:py-36 md:py-44 lg:py-56">
+    <section className="relative overflow-hidden bg-bg-primary">
+      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10 w-full py-16 sm:py-20 lg:py-28">
         <div className="max-w-4xl">
           <motion.h1
             initial={{ opacity: 0, y: 40 }}
             animate={{ opacity: 1, y: 0 }}
             transition={{ duration: 0.3, delay: 0.2, ease: EASE_OUT }}
-            className="text-4xl sm:text-5xl md:text-6xl lg:text-7xl xl:text-8xl font-black text-ink leading-[0.92] tracking-tightest mb-10 sm:mb-12 md:mb-16"
+            className="text-3xl sm:text-4xl md:text-5xl lg:text-6xl font-black text-ink leading-[0.95] tracking-tightest mb-6 sm:mb-8"
           >
             <div className="block">{service.title}</div>
             <div className="block mt-4 sm:mt-6">
@@ -45,7 +46,7 @@ function DetailHero({ service }: { service: Service }) {
             initial={{ opacity: 0, y: 30 }}
             animate={{ opacity: 1, y: 0 }}
             transition={{ duration: 0.3, delay: 0.5, ease: EASE_OUT }}
-            className="text-lg md:text-xl text-text-secondary max-w-2xl leading-relaxed mb-12 sm:mb-16"
+            className="text-lg md:text-xl text-text-secondary max-w-2xl leading-relaxed mb-10 sm:mb-12"
           >
             {service.description}
           </motion.p>
@@ -54,36 +55,10 @@ function DetailHero({ service }: { service: Service }) {
             initial={{ opacity: 0, y: 30 }}
             animate={{ opacity: 1, y: 0 }}
             transition={{ duration: 0.3, delay: 0.7, ease: EASE_OUT }}
-            className="grid grid-cols-3 gap-8 mb-12 sm:mb-16 max-w-xl"
-          >
-            <div>
-              <div className="text-3xl sm:text-4xl font-black text-brand-ink tracking-tight leading-none mb-2">
-                10+
-              </div>
-              <div className="text-sm text-text-muted">人核心团队</div>
-            </div>
-            <div>
-              <div className="text-3xl sm:text-4xl font-black text-ink tracking-tight leading-none mb-2">
-                6
-              </div>
-              <div className="text-sm text-text-muted">款自研产品</div>
-            </div>
-            <div>
-              <div className="text-3xl sm:text-4xl font-black text-ink tracking-tight leading-none mb-2">
-                100%
-              </div>
-              <div className="text-sm text-text-muted">结果导向交付</div>
-            </div>
-          </motion.div>
-
-          <motion.div
-            initial={{ opacity: 0, y: 30 }}
-            animate={{ opacity: 1, y: 0 }}
-            transition={{ duration: 0.3, delay: 0.9, ease: EASE_OUT }}
             className="flex flex-col sm:flex-row gap-4 sm:gap-6"
           >
             <CTAButton href="/contact" dataTestId="service-detail-hero-primary" className="min-h-[52px]">
-              免费咨询
+              {CTA_LABELS.consult}
             </CTAButton>
             <CTAButton href="#cases" variant="secondary" className="min-h-[52px] touch-manipulation">
               查看案例
@@ -276,7 +251,7 @@ function CTASection() {
           </p>
           <div className="flex flex-col sm:flex-row gap-4 sm:gap-6">
             <CTAButton href="/contact" dataTestId="service-detail-bottom-primary" className="min-h-[52px]">
-              预约免费咨询
+              {CTA_LABELS.consult}
             </CTAButton>
             <CTAButton href="/services" variant="secondary" dataTestId="service-detail-bottom-secondary" className="min-h-[52px]">
               返回服务列表
@@ -290,7 +265,7 @@ function CTASection() {
 
 export default function ServiceDetailContentV4({ service }: { service: Service }) {
   return (
-    <main className="min-h-screen bg-bg-primary text-ink">
+    <div className="min-h-screen bg-bg-primary text-ink">
       <DetailHero service={service} />
       <OverviewSection service={service} />
       <FeaturesSection service={service} />
@@ -298,6 +273,6 @@ export default function ServiceDetailContentV4({ service }: { service: Service }
       <L3EmptyFallback caseStudies={service.caseStudies} />
       <CaseStudiesSection caseStudies={service.caseStudies} id="cases" heading="真实案例，可衡量的成果" />
       <CTASection />
-    </main>
+    </div>
   );
 }