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)/home-content-v15.tsx

@@ -10,7 +10,10 @@ import { ArrowRight, Lightbulb, Database, Layers, Code, Puzzle, Server, Quote, C
 import { cn } from '@/lib/utils';
 import { EASE_OUT } from '@/components/ui/page-decoration';
 import { CTAButton } from '@/components/ui/cta-button';
+import { MetricsBasisNote } from '@/components/ui/metrics-basis-note';
 import { COMPANY_INFO, TRUST_SIGNALS, EARLY_ACCESS } from '@/lib/constants';
+import { canonicalCtaLabel, CTA_LABELS } from '@/lib/constants/cta-labels';
+import { canonicalTrustSource } from '@/lib/constants/company';
 import { useSiteConfig } from '@/lib/site-config';
 import { useReducedMotion } from '@/hooks/use-reduced-motion';
 import { type NewsItem } from '@/lib/constants/news';
@@ -100,13 +103,6 @@ const FALLBACK_INSIGHTS = [
     date: '2026-07',
     href: '/services/software',
   },
-  {
-    tag: '共创',
-    title: '首批客户共创计划：与早期客户共同打磨产品',
-    desc: '以真实运营数据验证业务改善，成果在获得客户授权后公开。',
-    date: '2026-06',
-    href: '/contact',
-  },
 ];
 
 // ===== 创始人观点兜底（对标 Accenture CEO Quote，人格化背书）=====
@@ -171,7 +167,7 @@ function HeroSection({ heroData }: {
 
   const heading = heroData?.heading || heroData?.headingBottom || '让每一家企业都拥有数据驱动的决策能力';
   const subheading = heroData?.subheading || heroData?.description || '';
-  const ctaLabel = heroData?.ctaLabel || '预约咨询';
+  const ctaLabel = canonicalCtaLabel(heroData?.ctaLabel) || CTA_LABELS.consult;
   const ctaHref = heroData?.ctaHref || '/contact';
   const secondaryCtaLabel = heroData?.secondaryCtaLabel || '查看产品矩阵';
   const secondaryCtaHref = heroData?.secondaryCtaHref || '/products';
@@ -300,28 +296,17 @@ function HeroStatsBand({ stats }: { stats?: Record<string, any>[] }) {
             ))}
           </div>
         </ScrollReveal>
+        <MetricsBasisNote className="mt-6" />
       </div>
     </section>
   );
 }
 
-// ===== 信任/成果区：可验证信任信号 + 首批客户共创标签 =====
-// 共创计划默认状态条目（如实呈现，无真实案例时不虚构客户）
-const DEFAULT_EARLY_ACCESS_STATUS = [
-  { label: '共创进行中', desc: '我们正与首批客户共同打磨产品与方案，以真实运营数据验证业务改善。' },
-  { label: '产品内测中', desc: '自研产品（如睿视 NovaVis）处于内测阶段，成熟后正式发布。' },
-  { label: '成果授权公开', desc: '案例与可量化成果在获得客户授权后公示——经得起衡量。' },
-];
-
+// ===== 信任/成果区：可验证信任信号 =====
 function TrustSection({ pageCopy }: { pageCopy?: HomePageCopy | null }) {
   const eyebrow = pageCopy?.trustEyebrow || '值得信赖';
   const titleLines = (pageCopy?.trustTitle || '以可衡量的成果\n赢得长期信任').split('\n');
   const signals = (pageCopy?.trustSignals?.length ? pageCopy.trustSignals : TRUST_SIGNALS) as typeof TRUST_SIGNALS;
-  const earlyLabel = pageCopy?.earlyAccessLabel || EARLY_ACCESS.label;
-  const earlyDesc = pageCopy?.earlyAccessDesc || EARLY_ACCESS.desc;
-  const earlyTitle = (pageCopy?.earlyAccessTitle as string) || '首批客户共创计划';
-  const earlyCtaLabel = (pageCopy?.earlyAccessCtaLabel as string) || '成为共创客户';
-  const earlyStatus = (pageCopy?.earlyAccessStatus?.length ? pageCopy.earlyAccessStatus : DEFAULT_EARLY_ACCESS_STATUS) as typeof DEFAULT_EARLY_ACCESS_STATUS;
 
   return (
     <section className="relative py-20 sm:py-28 md:py-36 overflow-hidden bg-bg-secondary" data-testid="trust-section">
@@ -350,44 +335,12 @@ function TrustSection({ pageCopy }: { pageCopy?: HomePageCopy | null }) {
                 </div>
                 <p className="text-sm text-text-secondary leading-relaxed mb-4 flex-1">{item.desc}</p>
                 <div className="text-xs text-text-muted border-t border-border-primary pt-3">
-                  数据来源：{item.source}
+                  数据来源：{canonicalTrustSource(item.source)}
                 </div>
               </div>
             </StaggerReveal>
           ))}
         </div>
-
-        {/* 首批客户共创计划：如实呈现共创/内测/授权公开状态，不虚构客户 */}
-        <StaggerReveal staggerDelay={0.05}>
-          <div className="p-6 sm:p-8 bg-brand-bg border border-[rgba(196,30,58,0.15)]" data-testid="early-access-banner">
-            <div className="flex items-center gap-3 mb-4">
-              <span className="text-[13px] tracking-[0.12em] font-semibold text-brand-ink">
-                {earlyLabel}
-              </span>
-            </div>
-            <h3 className="text-xl sm:text-2xl font-bold text-ink mb-3">
-              {earlyTitle}
-            </h3>
-            <p className="text-sm text-text-secondary leading-relaxed mb-6 max-w-2xl">
-              {earlyDesc}
-            </p>
-            <div className="grid sm:grid-cols-3 gap-4 mb-8">
-              {earlyStatus.map((s) => (
-                <div key={s.label} className="p-4 bg-bg-primary border border-brand/10">
-                  <div className="text-sm font-semibold text-brand-ink mb-1">{s.label}</div>
-                  <div className="text-xs text-text-secondary leading-relaxed">{s.desc}</div>
-                </div>
-              ))}
-            </div>
-            <StaticLink
-              href="/contact"
-              className="group inline-flex shrink-0 items-center min-h-6 gap-2 text-sm font-semibold text-ink hover:text-brand-ink transition-colors"
-            >
-              <span>{earlyCtaLabel}</span>
-              <ArrowRight className="w-4 h-4 transition-transform duration-300 group-hover:translate-x-1" />
-            </StaticLink>
-          </div>
-        </StaggerReveal>
       </div>
     </section>
   );
@@ -538,7 +491,7 @@ function InsightsSection({ pageCopy }: { pageCopy?: HomePageCopy | null }) {
                 </p>
                 <div className="pt-6 border-t border-border-primary">
                   <span className="inline-flex items-center gap-2 text-sm font-semibold text-text-secondary group-hover:text-brand-ink transition-colors">
-                    阅读全文
+                    了解详情
                     <ArrowRight className="w-4 h-4 transition-transform duration-300 group-hover:translate-x-1" />
                   </span>
                 </div>
@@ -596,13 +549,16 @@ function ServicesSection({ services, pageCopy }: { services?: Record<string, any
                     ))}
                   </div>
                   {(service as any).metrics && (
-                    <div className="flex gap-6 mb-8 pb-8 border-b border-border-primary">
-                      {(service as any).metrics.map((m: any, j: number) => (
-                        <div key={j}>
-                          <div className="text-2xl sm:text-3xl font-black text-ink leading-none mb-1">{m.value}</div>
-                          <div className="text-xs text-text-muted font-medium">{m.label}</div>
-                        </div>
-                      ))}
+                    <div className="mb-8 pb-8 border-b border-border-primary">
+                      <div className="flex gap-6 mb-2">
+                        {(service as any).metrics.map((m: any, j: number) => (
+                          <div key={j}>
+                            <div className="text-2xl sm:text-3xl font-black text-ink leading-none mb-1">{m.value}</div>
+                            <div className="text-xs text-text-muted font-medium">{m.label}</div>
+                          </div>
+                        ))}
+                      </div>
+                      <MetricsBasisNote />
                     </div>
                   )}
                   <div className="mt-auto pt-2">
@@ -700,16 +656,9 @@ function CasesSection({ cases, pageCopy }: { cases?: Record<string, any>[]; page
               <h2 className="text-2xl sm:text-3xl md:text-4xl lg:text-5xl font-black text-ink tracking-tight leading-[1.05] mb-8">
                 <StyledTitle lines={casesTitleLines} />
               </h2>
-              <p className="text-text-secondary leading-relaxed text-lg mb-8">
+              <p className="text-text-secondary leading-relaxed text-lg">
                 {casesDesc}
               </p>
-              <StaticLink
-                href="/contact"
-                className="group inline-flex items-center min-h-6 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-ink" />
-              </StaticLink>
             </ScrollReveal>
             <ScrollReveal delay={0.15}>
               <div className="relative overflow-hidden rounded-[2rem] bg-dark-bg p-10 sm:p-12 h-full flex flex-col shadow-card">
@@ -748,7 +697,7 @@ function CasesSection({ cases, pageCopy }: { cases?: Record<string, any>[]; page
                   </ol>
                   <div className="mt-auto">
                     <CTAButton href="/contact" dataTestId="cases-co-creation-cta">
-                      成为首批共创客户
+                      {CTA_LABELS.consult}
                     </CTAButton>
                   </div>
                 </div>
@@ -980,7 +929,7 @@ function NewsSection({ news, pageCopy }: { news?: NewsItem[]; pageCopy?: HomePag
 function CTASection({ heroData, pageCopy }: { heroData?: Record<string, any> | null; pageCopy?: HomePageCopy | null }) {
   const ctaTitleLine1 = heroData?.ctaTitleLine1 || pageCopy?.ctaTitleLine1 || '准备好开始了吗？';
   const ctaTitleLine2 = heroData?.ctaTitleLine2 || pageCopy?.ctaTitleLine2 || '让数据真正转化为业务增长';
-  const ctaLabel = heroData?.ctaLabel || pageCopy?.ctaLabel || '预约咨询';
+  const ctaLabel = canonicalCtaLabel(heroData?.ctaLabel || (pageCopy?.ctaLabel as string)) || CTA_LABELS.consult;
   const ctaHref = heroData?.ctaHref || '/contact';
 
   return (
@@ -1009,7 +958,7 @@ export default function HomeContentV15({ services, cases, stats, heroData, news,
   pageCopy?: HomePageCopy | null;
 }) {
   return (
-    <main>
+    <div>
       {/* 1. Hero：浅色 editorial 画布 + 品牌红单电压（参考 Accenture Radical Relevance） */}
       <HeroSection heroData={heroData} />
 
@@ -1039,6 +988,6 @@ export default function HomeContentV15({ services, cases, stats, heroData, news,
 
       {/* 9. CTA：克制强调，品牌红仅用于按钮 */}
       <CTASection heroData={heroData} pageCopy={pageCopy} />
-    </main>
+    </div>
   );
 }