'use client';

import { useRef } from 'react';
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 { HeroParticleField, type HeroVariant } from '@/components/sections/hero-particle-field';
import { ArrowRight, Lightbulb, Database, Layers, Code, Puzzle, Server, Quote, Calendar } from 'lucide-react';
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 { weakestBasis } from '@/lib/constants/metrics-basis';
import { useSiteConfig } from '@/lib/site-config';
import { useReducedMotion } from '@/hooks/use-reduced-motion';
import { type NewsItem } from '@/lib/constants/news';
import { NEWS } from '@/lib/constants/news';

// ===== 服务图标映射：将字符串键名映射为 Lucide 组件 =====
const SERVICE_ICON_MAP: Record<string, React.ReactNode> = {
  Lightbulb: <Lightbulb className="w-7 h-7" />,
  Code: <Code className="w-7 h-7" />,
  Server: <Server className="w-7 h-7" />,
  Puzzle: <Puzzle className="w-7 h-7" />,
};

// ===== 服务数据降级兜底（4 条，保证 sm:grid-cols-2 网格完整，避免孤儿格）=====
const FALLBACK_SERVICES = [
  {
    subtitle: 'Strategy Consulting',
    title: '数字化转型战略咨询',
    desc: '从业务诊断到数字化路线图，帮助企业识别高价值场景，规划可落地的转型路径，确保每一分投入都能产生可衡量的业务回报。',
    highlights: ['业务诊断', '数字化蓝图', '实施路线图', 'ROI 评估'],
    metrics: [
      { value: '40%', label: '平均运营效率提升' },
      { value: '6个月', label: '战略到试点周期' },
    ],
    href: '/services/consulting',
    icon: <Lightbulb className="w-7 h-7" />,
  },
  {
    subtitle: 'Software Delivery',
    title: '企业软件定制开发',
    desc: '基于自研产品矩阵与工程化交付流程，提供从需求分析、架构设计到持续运维的全栈软件开发服务，支撑业务数字化落地。',
    highlights: ['需求分析', '架构设计', '敏捷开发', '持续运维'],
    metrics: [
      { value: '6', label: '款自研产品' },
      { value: '24/7', label: '运维支持' },
    ],
    href: '/services/software',
    icon: <Code className="w-7 h-7" />,
  },
  {
    subtitle: 'Data Intelligence',
    title: '数据智能与 AI 应用',
    desc: '构建企业级数据平台与 AI 能力，打通数据孤岛，沉淀数据资产，让决策从经验驱动转向数据驱动。',
    highlights: ['数据中台', 'AI 建模', '可视化分析', '预测决策'],
    metrics: [
      { value: '98%', label: '数据质量达标率' },
      { value: '10x', label: '分析效率提升' },
    ],
    href: '/services/data',
    icon: <Database className="w-7 h-7" />,
  },
  {
    subtitle: 'Solution Delivery',
    title: '行业解决方案落地',
    desc: '基于核心团队的行业实践，提供从方案设计、系统开发到上线运维的一站式交付，确保数字化转型真正落地生根。',
    highlights: ['行业套件', '定制开发', '系统集成', '持续运维'],
    metrics: [
      { value: '6', label: '行业场景覆盖' },
      { value: '99.9%', label: '系统可用性' },
    ],
    href: '/services/solutions',
    icon: <Layers className="w-7 h-7" />,
  },
];

// ===== 行业洞察兜底数据（对标 Accenture Insights：类型标签 + 卡片）=====
// 零编造原则：全部为可验证的方法论/观点类内容，链接真实页面；不做虚构研究报告
const FALLBACK_INSIGHTS = [
  {
    tag: '方法论',
    title: '数字化转型诊断：从哪里开始，如何衡量',
    desc: '从业务目标出发的四步诊断法——梳理断点、量化差距、排定优先级、定义验收指标。',
    date: '2026-08',
    href: '/methodology',
  },
  {
    tag: '观点',
    title: '私有化部署：为什么核心数据需要留在企业内',
    desc: '合规要求之外，数据主权正在成为企业数字化决策的第一优先级。',
    date: '2026-08',
    href: '/services/data',
  },
  {
    tag: '方法论',
    title: '从需求到交付：全流程陪伴式实施如何降低转型风险',
    desc: '诊断 → 设计 → 交付 → 运维，每一阶段都有明确的交付物与衡量指标。',
    date: '2026-07',
    href: '/services/software',
  },
];

// ===== 创始人观点兜底（对标 Accenture CEO Quote，人格化背书）=====
// 零编造原则：不虚构具体人名/原话；姓名职务为空时仅展示观点立场，真实引言可在 CMS page-copy 配置
const FALLBACK_FOUNDER_QUOTE = {
  // 排版约束：3 行均势（17 / 18 / 13 字），避开"量。"孤儿字。
  // 配合 blockquote 的 whitespace-pre-line 渲染换行。
  text: '我们相信，数字化不是一次性项目，\n而是持续迭代的能力建设。\n每一份投入，都应当经得起衡量。',
  name: '睿新致远创始团队',
  role: '技术咨询 · 数字化转型同行者',
};

// ===== 首页结构性文案类型（page-copy CMS 覆盖，未配置时走硬编码兜底）=====
type HomePageCopy = Record<string, any>;

// 多行标题渲染：按 \n 分段，输出 <br/> 换行
function StyledTitle({ lines }: { lines: (string | undefined)[] }) {
  return (
    <>
      {lines.map((line, i) => (
        <span key={i}>
          {i > 0 && <br />}
          {line}
        </span>
      ))}
    </>
  );
}

// ===== 品牌 CTA 按钮已抽离为可复用 UI 组件：@/components/ui/cta-button =====

// ===== Hero 区：浅色画布 + 精密工程网格科技感 + 品牌红单电压 =====
// 设计方向（2026-08-31 重设计，参考 Accenture Radical Relevance；2026-09-01 科技感升级）：
// - 声明先行：H1 → 主张 → CTA，一屏只负责「一句话说清你是谁 + 一个行动」
// - 数据指标下沉为独立成果带（HeroStatsBand），由滚动触发（Glance 层），不再挤在 hero 内
// - 单一电压：hero 内只有品牌红一个彩色；连线走墨色（浅底）/中性灰（深底），不抢品牌红
// - 字重收敛：大标题 700（原 900），对齐 Accenture「字重 9→3」的克制
// - 科技感引擎：HeroParticleField 变体（固定种子、reduced-motion/自动化降级 → 快照零漂移）
//
// ===== HERO_VARIANT 观感开关（默认 'grid'：浅色底 + 工程网格科技感）=====
// 定调：Hero 保持浅色背景（与全站浅色咨询风一致），科技感由「精密工程网格 + 动态粒子 + 墨色细连线」承担，
// 不做深色 Hero。深色变体保留待选（改这一行即生效，无需改其它代码）：
//   'grid'          浅色工程网格 + 品牌红漂移节点 + 墨色细连线 ← 默认落地
//   'network'       深色节点网络（品牌红节点 + 中性灰连线）
//   'constellation' 深色数据星图（品牌红脉冲节点 + 暗白次级点 + 竖向数据流）
//   'spotlight'     深色聚光 + 粒子 + 工程网格（纵深最强，复用 L2 光标聚光）
const HERO_VARIANT: HeroVariant = 'grid';

function HeroSection({ heroData }: {
  heroData?: Record<string, any> | null;
}) {
  const containerRef = useRef<HTMLDivElement>(null);
  const spotRef = useRef<HTMLDivElement>(null);
  const siteConfig = useSiteConfig();
  const reduceMotion = useReducedMotion();

  // 科技感变体开关（见文件顶部 HERO_VARIANT 注释）：深色变体统一走深色画布 + 主题感知文字
  const dark = HERO_VARIANT !== 'grid';
  const showGrid = HERO_VARIANT === 'constellation' || HERO_VARIANT === 'spotlight'; // 深色工程网格
  const showLightGrid = HERO_VARIANT === 'grid'; // 浅色工程网格（墨色 hairline，精密质感）
  const showCursorGlow = HERO_VARIANT === 'spotlight';

  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 = 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';
  const slogan = siteConfig.slogan || COMPANY_INFO.slogan;

  // reduced-motion 守卫：与 ScrollReveal 同范式——reduce 时传空 initial/animate，
  // 元素直接以自然（可见）状态渲染，零位移/淡入；默认（非 reduce，含首帧 null）正常动画。
  const rise = (y: number, delay: number, duration = 0.3) => ({
    initial: reduceMotion ? {} : { opacity: 0, y },
    animate: reduceMotion ? {} : { opacity: 1, y: 0 },
    transition: { duration: reduceMotion ? 0 : duration, delay: reduceMotion ? 0 : delay, ease: EASE_OUT },
  });

  return (
    <section
      ref={containerRef}
      className={`relative min-h-[90vh] flex items-center overflow-hidden ${dark ? 'bg-dark-bg text-white' : 'bg-bg-primary'}`}
      data-testid="hero-section"
      onPointerMove={(e) => {
        if (!spotRef.current || !containerRef.current) return;
        const rect = containerRef.current.getBoundingClientRect();
        spotRef.current.style.setProperty('--spot-x', `${e.clientX - rect.left}px`);
        spotRef.current.style.setProperty('--spot-y', `${e.clientY - rect.top}px`);
      }}
    >
      {/* L1 工程网格：浅底墨色 hairline（grid）/ 深底白色 hairline（constellation、spotlight） */}
      {showLightGrid && (
        <div className="absolute inset-0 pointer-events-none hero-grid-overlay--light" aria-hidden="true" />
      )}
      {showGrid && (
        <div className="absolute inset-0 pointer-events-none hero-grid-overlay--dark" aria-hidden="true" />
      )}
      {/* L2 品牌红光标聚光（仅 spotlight 变体 + 非 reduced-motion）：跟随鼠标，仅写 2 个 CSS 变量，无 canvas、无逐帧 JS */}
      {showCursorGlow && !reduceMotion && (
        <div ref={spotRef} className="absolute inset-0 pointer-events-none hero-spot-glow opacity-70" aria-hidden="true" />
      )}
      {/* L3 动态粒子（品牌红点缀 + 科技感变体）：rAF 持续循环漂移；
           reduced-motion / 自动化环境下降级为一次性静态帧（连线/星图位置由固定种子复现 → 快照零漂移） */}
      <HeroParticleField variant={HERO_VARIANT} dark={dark} />

      <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 md:py-24 lg:py-24">
        <div className="grid items-center gap-16">
        <div className="max-w-4xl">
          {/* 品牌口号 Badge：画布上的品牌红信号（深底走 brand-light 保证对比度；hero 不重复渲染 Logo，避免与导航栏重复） */}
          {slogan && (
            <motion.div
              {...rise(20, 0.03)}
              className="mb-6"
            >
              <span className={`inline-flex items-center gap-2 px-3 py-1.5 rounded-full text-sm font-medium border ${dark ? 'bg-brand/10 text-brand-light border-brand/30' : 'bg-brand/5 text-brand-ink border-brand/15'}`}>
                {slogan}
              </span>
            </motion.div>
          )}

          {/* 主标题：大胆、直接（深底白色 / 浅底墨色，随 HERO_VARIANT 切换） */}
          <motion.h1
            {...rise(40, 0.06, 0.45)}
            className={`text-4xl sm:text-5xl md:text-6xl lg:text-6xl 2xl:text-7xl font-bold leading-[1.05] tracking-tight mb-7 sm:mb-8 ${dark ? 'text-white' : 'text-ink'}`}
          >
            {heading}
          </motion.h1>

          {/* 主张：紧随声明之后，回答「凭什么信你」（声明先行，数据下沉至成果带） */}
          {subheading && (
          <motion.p
            {...rise(30, 0.16)}
            className={`text-lg sm:text-xl max-w-2xl leading-relaxed mb-10 ${dark ? 'text-white/70' : 'text-text-secondary'}`}
          >
              {subheading}
            </motion.p>
          )}

          {/* CTA 按钮组 */}
          <motion.div
            {...rise(30, 0.24)}
            className="flex flex-col sm:flex-row sm:items-center gap-4 sm:gap-6"
          >
            <CTAButton href={ctaHref} dataTestId="hero-primary-cta">{ctaLabel}</CTAButton>
            {secondaryCtaLabel && (
              <a
                href={secondaryCtaHref}
                data-testid="hero-secondary-link"
                className={`group inline-flex items-center gap-2 text-sm font-medium transition-colors duration-200 py-4 ${dark ? 'text-white/70 hover:text-white' : 'text-text-secondary hover:text-ink'}`}
              >
                {secondaryCtaLabel}
                <ArrowRight className="w-4 h-4 transition-transform duration-normal group-hover:translate-x-1" />
              </a>
            )}
          </motion.div>
        </div>
        </div>
      </div>
    </section>
  );
}

// ===== Hero 成果带：数据指标下沉为独立带（声明先行，Glance 层滚动触发）=====
// 设计意图：hero 一屏只负责「一句话声明 + 一个行动」，硬指标移出后由滚动触发，
// 既是 Accenture「single stream 逐步展开」的落地，也避免一屏信息过载。
function HeroStatsBand({ stats }: { stats?: Record<string, any>[] }) {
  const hasValidStats = stats?.length && stats[0]?.value;
  const displayStats = hasValidStats ? stats!.slice(0, 3) : [];
  if (displayStats.length === 0) return null;
  return (
    <section
      data-testid="hero-stats"
      aria-label="关键成果指标"
      className="relative border-t border-border-primary bg-bg-primary"
    >
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 py-12 sm:py-16">
        <ScrollReveal>
          <div className="flex flex-wrap gap-8 sm:gap-12 md:gap-16">
            {displayStats.map((stat, i) => (
              <div key={i} className="flex items-baseline gap-2">
                <span className={cn(
                  'text-3xl sm:text-4xl md:text-5xl font-mono font-bold tabular-nums leading-none',
                  i === 0 ? 'text-brand-ink' : 'text-ink'
                )}>
                  {stat.value}
                </span>
                <span className="text-sm text-text-secondary whitespace-nowrap">
                  {stat.label}
                </span>
              </div>
            ))}
          </div>
        </ScrollReveal>
        <MetricsBasisNote basis={weakestBasis(displayStats.map((s) => s.basis))} className="mt-6" />
      </div>
    </section>
  );
}

// ===== 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;

  return (
    <section className="relative py-20 sm:py-28 md:py-36 overflow-hidden bg-bg-secondary" data-testid="trust-section">
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
        <ScrollReveal className="mb-16 sm:mb-20">
          <div className="flex items-center gap-3 mb-6">
            <div className="w-10 h-px bg-brand" />
            <span className="text-[13px] tracking-[0.12em] font-semibold text-brand-ink">
              {eyebrow}
            </span>
          </div>
          <h2 className="text-2xl sm:text-3xl md:text-4xl lg:text-5xl font-black text-ink tracking-tight leading-[1.05]">
            <StyledTitle lines={titleLines} />
          </h2>
        </ScrollReveal>

        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-6 mb-10">
          {signals.map((item, i) => (
            <StaggerReveal key={i} staggerDelay={0.06}>
              <div className="bain-card p-6 sm:p-7 h-full flex flex-col">
                <div className="flex items-baseline gap-2 mb-3">
                  <span className="text-xl sm:text-2xl font-black text-ink leading-none">
                    {item.value}
                  </span>
                  <span className="text-sm font-semibold text-text-secondary">{item.label}</span>
                </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：{canonicalTrustSource(item.source)}
                </div>
              </div>
            </StaggerReveal>
          ))}
        </div>
      </div>
    </section>
  );
}

// ===== 章节式叙事区：问题 → 方法 → 结果（Storytelling-Driven）=====
const NARRATIVE_ACTS = [
  {
    number: '01',
    title: '诊断现状',
    desc: '从业务目标出发，梳理流程断点、数据孤岛与瓶颈环节，形成可量化的诊断结论。',
    href: '/services/consulting',
    cta: '了解诊断方法',
  },
  {
    number: '02',
    title: '设计路径',
    desc: '基于诊断结论设计系统架构与实施路线图，明确每一阶段的交付物与衡量指标。',
    href: '/services/solutions',
    cta: '查看方案设计',
  },
  {
    number: '03',
    title: '交付成果',
    desc: '以自研产品组合与专业实施团队完成交付，用真实运营数据验证业务改善，持续迭代。',
    href: '/products',
    cta: '浏览产品矩阵',
  },
];

function NarrativeSection({ pageCopy }: { pageCopy?: HomePageCopy | null }) {
  const narrativeTitle = (pageCopy?.narrativeTitle || '从问题到结果，\n一条可量化的路径').split('\n');
  const NARRATIVE_ACTS_CMS = (pageCopy?.narrativeActs?.length ? pageCopy.narrativeActs : NARRATIVE_ACTS) as Array<{
    number: string;
    title: string;
    desc: string;
    href: string;
    cta: string;
  }>;

  return (
    <section className="relative py-20 sm:py-28 md:py-36 overflow-hidden bg-bg-primary" data-testid="narrative-section">
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
        <ScrollReveal className="mb-16 sm:mb-20">
          <h2 className="text-2xl sm:text-3xl md:text-4xl lg:text-5xl font-black text-ink tracking-tight leading-[1.05]">
            <StyledTitle lines={narrativeTitle} />
          </h2>
        </ScrollReveal>

        <div className="grid md:grid-cols-3 gap-px bg-border-primary">
          {NARRATIVE_ACTS_CMS.map((act) => (
            <StaggerReveal key={act.number} staggerDelay={0.05}>
              <div className="group relative h-full bg-bg-primary p-8 sm:p-10 md:p-12 transition-colors duration-normal hover:bg-bg-secondary">
                <div className="flex items-start justify-between mb-8">
                  <span
                    aria-hidden="true"
                    className="text-4xl sm:text-5xl font-black text-text-hint tabular-nums leading-none"
                  >
                    {act.number}
                  </span>
                </div>
                <h3 className="text-xl lg:text-2xl font-bold text-ink mb-4 group-hover:text-brand-ink transition-colors duration-normal">
                  {act.title}
                </h3>
                <p className="text-text-secondary leading-relaxed mb-8 text-sm">
                  {act.desc}
                </p>
                <div className="pt-6 border-t border-border-primary">
                  <a
                    href={act.href}
                    className="group/link inline-flex items-center min-h-6 gap-2 text-sm font-semibold text-text-secondary group-hover:text-brand-ink transition-colors"
                  >
                    <span>{act.cta}</span>
                    <ArrowRight className="w-4 h-4 transition-transform duration-normal group-hover/link:translate-x-1" />
                  </a>
                </div>
              </div>
            </StaggerReveal>
          ))}
        </div>
      </div>
    </section>
  );
}

// ===== 行业洞察区（对标 Accenture Insights：类型标签 + 内容卡片，思想领导力支柱）=====
function InsightsSection({ pageCopy }: { pageCopy?: HomePageCopy | null }) {
  const eyebrow = (pageCopy?.insightsEyebrow as string) || 'Insights';
  const titleLines = ((pageCopy?.insightsTitle as string) || '我们的思考，\n以实践为锚').split('\n');
  const desc = (pageCopy?.insightsDescription as string) || '方法论、观点与共创进展——可验证的思考，不空谈趋势。';
  const items = (pageCopy?.insightsItems?.length ? pageCopy.insightsItems : FALLBACK_INSIGHTS) as Array<{
    tag: string;
    title: string;
    desc: string;
    date?: string;
    href: string;
  }>;

  return (
    <section className="relative py-20 sm:py-28 md:py-36 overflow-hidden bg-bg-primary" data-testid="insights-section">
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
        <div className="flex flex-col md:flex-row md:items-end md:justify-between gap-8 mb-16 sm:mb-20">
          <ScrollReveal className="md:max-w-3xl">
            <div className="flex items-center gap-3 mb-6">
              <div className="w-10 h-px bg-brand" />
              <span className="text-[13px] tracking-[0.12em] font-semibold text-brand-ink">
                {eyebrow}
              </span>
            </div>
            <h2 className="text-2xl sm:text-3xl md:text-4xl lg:text-5xl font-black text-ink tracking-tight leading-[1.05]">
              <StyledTitle lines={titleLines} />
            </h2>
            <p className="mt-6 text-base sm:text-lg text-text-secondary leading-relaxed max-w-2xl">
              {desc}
            </p>
          </ScrollReveal>
          <ScrollReveal delay={0.1}>
            <StaticLink
              href="/news"
              className="group inline-flex items-center min-h-6 gap-3 text-ink font-semibold text-sm"
            >
              查看全部洞察
              <ArrowRight className="w-4 h-5 transition-transform duration-normal group-hover:translate-x-2 text-text-secondary group-hover:text-brand-ink" />
            </StaticLink>
          </ScrollReveal>
        </div>

        <div className="grid grid-cols-1 md:grid-cols-2 gap-px bg-border-primary border border-border-primary">
          {items.slice(0, 4).map((insight, i) => (
            <StaggerReveal key={i} staggerDelay={0.05}>
              <a
                href={insight.href}
                className="group flex flex-col h-full bg-bg-primary p-8 sm:p-10 md:p-12 transition-colors duration-normal hover:bg-bg-secondary"
              >
                <div className="flex items-center justify-between mb-8">
                  <span className="text-[13px] tracking-[0.12em] font-semibold text-brand-ink">
                    {insight.tag}
                  </span>
                  {insight.date && (
                    <span className="text-xs text-text-muted tabular-nums">{insight.date}</span>
                  )}
                </div>
                <h3 className="text-xl lg:text-2xl font-bold text-ink mb-4 leading-[1.25] group-hover:text-brand-ink transition-colors duration-normal">
                  {insight.title}
                </h3>
                <p className="text-text-secondary leading-relaxed mb-8 text-sm flex-1">
                  {insight.desc}
                </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">
                    了解详情
                    <ArrowRight className="w-4 h-4 transition-transform duration-normal group-hover:translate-x-1" />
                  </span>
                </div>
              </a>
            </StaggerReveal>
          ))}
        </div>
      </div>
    </section>
  );
}

// ===== 服务区：等宽三列卡片 + 兜底数据 =====
function ServicesSection({ services, pageCopy }: { services?: Record<string, any>[]; pageCopy?: HomePageCopy | null }) {
  const hasValidData = services?.length && (services![0] as any)?.subtitle;
  const SERVICE_ITEMS = hasValidData
    ? services!.map((s: Record<string, any>) => ({
        ...s,
        icon: SERVICE_ICON_MAP[s.icon as string] || <Server className="w-7 h-7" />,
      })) as Record<string, any>[]
    : FALLBACK_SERVICES;
  const servicesTitle = (pageCopy?.servicesTitle || '从战略到落地，\n可量化的一站式服务').split('\n');

  return (
    <section className="relative py-20 sm:py-28 md:py-36 overflow-hidden bg-bg-secondary">
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
        <div className="max-w-3xl mb-16 sm:mb-20">
          <ScrollReveal>
            <h2 className="text-2xl sm:text-3xl md:text-4xl lg:text-5xl font-black text-ink tracking-tight leading-[1.05]">
              <StyledTitle lines={servicesTitle} />
            </h2>
          </ScrollReveal>
        </div>

        <div className="grid gap-6 sm:grid-cols-2">
          {SERVICE_ITEMS.map((service, i) => (
            <StaggerReveal key={i} staggerDelay={0.05}>
              <a href={service.href} className="group bain-card block p-8 sm:p-10 md:p-12 h-full flex flex-col">
                <div className="flex flex-col flex-1">
                  <div className="flex items-start justify-between mb-10">
                    <div className="w-12 h-12 flex items-center justify-center bg-bg-secondary text-text-secondary" aria-hidden="true">
                      {service.icon}
                    </div>
                  </div>
                  <div className="mb-6">
                    <span className="block text-sm text-text-muted mb-3 font-medium">{service.subtitle}</span>
                    <h3 className="text-xl lg:text-2xl font-bold text-ink">{service.title}</h3>
                  </div>
                  <p className="text-text-secondary leading-relaxed mb-8 text-sm">{service.desc}</p>
                  <div className="flex flex-wrap gap-2 mb-8">
                    {(Array.isArray(service.highlights) ? service.highlights : []).map((h: string, j: number) => (
                      <span key={j} className="px-3 py-1.5 text-xs text-text-muted border border-border-primary font-medium">
                        {h}
                      </span>
                    ))}
                  </div>
                  {(service as any).metrics && (
                    <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 basis={weakestBasis(((service as any).metrics as any[]).map((m) => m.basis))} />
                    </div>
                  )}
                  <div className="mt-auto pt-2">
                    <div className="inline-flex items-center gap-2 text-sm font-semibold text-text-secondary group-hover:text-brand-ink transition-colors">
                      <span>了解详情</span>
                      <ArrowRight className="w-4 h-4 transition-transform duration-normal group-hover:translate-x-1" />
                    </div>
                  </div>
                </div>
              </a>
            </StaggerReveal>
          ))}
        </div>
      </div>
    </section>
  );
}

// ===== 创始人观点区（对标 Accenture CEO Quote：大引言 + 署名，人格化背书）=====
function FounderQuoteSection({ pageCopy }: { pageCopy?: HomePageCopy | null }) {
  const eyebrow = (pageCopy?.founderQuoteEyebrow as string) || '创始团队观点';
  const quoteText = (pageCopy?.founderQuoteText as string) || FALLBACK_FOUNDER_QUOTE.text;
  const quoteName = (pageCopy?.founderQuoteName as string) || FALLBACK_FOUNDER_QUOTE.name;
  const quoteRole = (pageCopy?.founderQuoteRole as string) || FALLBACK_FOUNDER_QUOTE.role;

  return (
    <section className="relative py-20 sm:py-28 md:py-36 overflow-hidden bg-brand-section" data-testid="founder-quote-section">
      {/* 背景纹理：极淡白色点阵（Bain 式深红区块 + 克制质感） */}
      <div className="absolute inset-0 pointer-events-none opacity-[0.05]"
        style={{
          backgroundImage: `radial-gradient(circle at 75% 25%, rgba(255,255,255,0.5) 1px, transparent 1px)`,
          backgroundSize: '48px 48px',
        }}
      />
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
        <ScrollReveal className="max-w-4xl mx-auto text-center">
          <div className="bg-bg-primary/95 rounded-2xl p-8 sm:p-10 md:p-12 max-w-3xl mx-auto shadow-sm border border-brand/10">
            <div className="flex items-center justify-center gap-3 mb-8">
              <div className="w-10 h-px bg-brand/40" />
              <span className="text-[13px] tracking-[0.12em] font-semibold text-brand-ink">
                {eyebrow}
              </span>
              <div className="w-10 h-px bg-brand/40" />
            </div>
            <Quote className="w-10 h-10 mx-auto mb-8 text-brand-ink/40" aria-hidden="true" />
            <blockquote className="text-base sm:text-xl md:text-[28px] font-medium text-ink leading-[1.7] mb-10 border-l-0 pl-0 m-0 max-w-[640px] mx-auto whitespace-pre-line">
              {quoteText}
            </blockquote>
            {(quoteName || quoteRole) && (
              <div className="flex flex-col items-center gap-1">
                {quoteName && (
                  <div className="text-base font-semibold text-ink">{quoteName}</div>
                )}
                {quoteRole && (
                  <div className="text-sm text-text-secondary">{quoteRole}</div>
                )}
              </div>
            )}
          </div>
        </ScrollReveal>
      </div>
    </section>
  );
}

// ===== 共创流程（可验证方法论，不虚构客户）=====
const CO_CREATION_STEPS = [
  { step: '01', title: '业务诊断', desc: '深入理解业务场景，识别高价值切入点' },
  { step: '02', title: '方案共创', desc: '与核心团队共同设计解决方案与实施路径' },
  { step: '03', title: '验证发布', desc: '以真实运营数据验证成效，经授权后公开案例' },
];

// ===== 案例区：Client Spotlight（对标 Accenture：深色大卡 spotlight + 其余小卡）=====
function CasesSection({ cases, pageCopy }: { cases?: Record<string, any>[]; pageCopy?: HomePageCopy | null }) {
  const hasValidData = cases?.length && cases[0]?.metrics;
  const CASE_ITEMS = hasValidData ? cases! : [];
  const casesEyebrow = pageCopy?.casesEyebrow || '共创进行时';
  const casesTitleLines = (pageCopy?.casesTitle || '每一个项目，\n都以业务改善为衡量标准').split('\n');
  const casesDesc = pageCopy?.casesDescription || '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。';
  const earlyLabel = pageCopy?.earlyAccessLabel || EARLY_ACCESS.label;
  const earlyDesc = pageCopy?.earlyAccessDesc || EARLY_ACCESS.desc;

  if (CASE_ITEMS.length === 0) {
    return (
      <section className="relative py-20 sm:py-28 md:py-36 overflow-hidden bg-bg-primary">
        <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
          <div className="grid lg:grid-cols-2 gap-12 items-center">
            <ScrollReveal>
              <div className="flex items-center gap-3 mb-6">
                <div className="w-10 h-px bg-brand" />
                <span className="text-[13px] tracking-[0.12em] font-semibold text-brand-ink">
                  {casesEyebrow}
                </span>
              </div>
              <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">
                {casesDesc}
              </p>
            </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">
                {/* 背景纹理：极淡白色点阵（对标埃森哲深色 spotlight 画布） */}
                <div
                  className="absolute inset-0 pointer-events-none opacity-[0.05]"
                  style={{
                    backgroundImage: `radial-gradient(circle at 75% 25%, rgba(255,255,255,0.5) 1px, transparent 1px)`,
                    backgroundSize: '48px 48px',
                  }}
                />
                <div className="relative z-10 flex flex-col h-full">
                  <div className="flex items-center gap-3 mb-6">
                    <div className="w-10 h-px bg-brand" />
                    <span className="text-[13px] tracking-[0.12em] font-semibold text-brand-light">
                      {casesEyebrow}
                    </span>
                  </div>
                  <Quote className="w-8 h-8 mb-6 text-white/30" aria-hidden="true" />
                  <div className="text-4xl sm:text-5xl font-black text-white tabular-nums leading-none mb-4">
                    {earlyLabel}
                  </div>
                  <p className="text-white/70 leading-relaxed mb-10">{earlyDesc}</p>
                  <ol className="space-y-5 mb-10">
                    {CO_CREATION_STEPS.map((s) => (
                      <li key={s.step} className="flex items-start gap-4">
                        <span className="text-sm font-black text-brand-light tabular-nums leading-6 shrink-0">
                          {s.step}
                        </span>
                        <div>
                          <div className="text-sm font-semibold text-white mb-0.5">{s.title}</div>
                          <div className="text-sm text-white/60 leading-relaxed">{s.desc}</div>
                        </div>
                      </li>
                    ))}
                  </ol>
                  <div className="mt-auto">
                    <CTAButton href="/contact" dataTestId="cases-co-creation-cta">
                      {CTA_LABELS.consult}
                    </CTAButton>
                  </div>
                </div>
              </div>
            </ScrollReveal>
          </div>
        </div>
      </section>
    );
  }

  const [spotlightCase, ...restCases] = CASE_ITEMS;
  const spotlightTestimonial = spotlightCase?.testimonial as Record<string, any> | undefined;

  return (
    <section className="relative py-20 sm:py-28 md:py-36 overflow-hidden bg-bg-primary">
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
        <div className="flex flex-col md:flex-row md:items-end md:justify-between gap-8 mb-16 sm:mb-20">
          <ScrollReveal className="md:max-w-3xl">
            <h2 className="text-2xl sm:text-3xl md:text-4xl lg:text-5xl font-black text-ink tracking-tight leading-[1.05]">
              <StyledTitle lines={casesTitleLines} />
            </h2>
          </ScrollReveal>
          <ScrollReveal delay={0.1}>
            <StaticLink
              href="/cases"
              className="group inline-flex items-center min-h-6 gap-3 text-ink font-semibold text-sm"
            >
              查看全部案例
              <ArrowRight className="w-4 h-5 transition-transform duration-normal group-hover:translate-x-2 text-text-secondary group-hover:text-brand-ink" />
            </StaticLink>
          </ScrollReveal>
        </div>

        {/* Client Spotlight 大卡：深色画布 + 客户引言 + 量化成果（对标 Accenture） */}
        {spotlightCase && (
          <ScrollReveal className="mb-6">
            <a
              href={spotlightCase.href || `/cases/${spotlightCase.slug || ''}`}
              className="group relative block overflow-hidden rounded-[2rem] bg-dark-bg p-10 sm:p-14 h-full flex flex-col shadow-card"
            >
              {/* 背景纹理：极淡白色点阵 */}
              <div
                className="absolute inset-0 pointer-events-none opacity-[0.05]"
                style={{
                  backgroundImage: `radial-gradient(circle at 75% 25%, rgba(255,255,255,0.5) 1px, transparent 1px)`,
                  backgroundSize: '48px 48px',
                }}
              />
              <div className="relative z-10 flex flex-col lg:flex-row lg:items-stretch gap-10 lg:gap-16">
                <div className="flex flex-col flex-1">
                  <div className="flex items-center gap-3 mb-8">
                    <Badge className="bg-white/10 text-white border-transparent">
                      {spotlightCase.industry}
                    </Badge>
                    {spotlightCase.verified && (
                      <Badge className="bg-brand/15 text-brand-light border-brand/30">
                        已获客户授权
                      </Badge>
                    )}
                  </div>
                  <h3 className="text-2xl sm:text-3xl lg:text-4xl font-black text-white leading-[1.15] mb-8">
                    {spotlightCase.title}
                  </h3>
                  {spotlightTestimonial?.quote && (
                    <blockquote className="max-w-2xl">
                      <Quote className="w-6 h-6 text-brand-light mb-4" aria-hidden="true" />
                      <p className="text-white/80 text-lg leading-relaxed">
                        {spotlightTestimonial.quote}
                      </p>
                      {(spotlightTestimonial.author || spotlightTestimonial.name) && (
                        <footer className="mt-4 text-sm text-white/60">
                          {spotlightTestimonial.author || spotlightTestimonial.name}
                          {spotlightTestimonial.role && ` · ${spotlightTestimonial.role}`}
                        </footer>
                      )}
                    </blockquote>
                  )}
                  <div className="mt-auto pt-6 border-t border-white/10 flex items-center justify-between gap-6 flex-wrap">
                    <span className="inline-flex items-center gap-2 text-sm font-semibold text-white group-hover:text-brand-light transition-colors">
                      查看完整案例
                      <ArrowRight className="w-4 h-4 transition-transform duration-normal group-hover:translate-x-1" />
                    </span>
                  </div>
                </div>
                <div className="lg:w-[38%] shrink-0">
                  <div className="grid grid-cols-3 lg:grid-cols-1 gap-6 lg:gap-8 h-full">
                    {spotlightCase.metrics?.slice(0, 3).map((metric: Record<string, any>, j: number) => (
                      <div key={j} className={cn('lg:py-4', j < 2 && 'lg:border-b lg:border-white/10')}>
                        <div className={cn(
                          'text-3xl sm:text-4xl font-black leading-none mb-2 tabular-nums',
                          j === 0 ? 'text-brand-light' : 'text-white'
                        )}>
                          {metric.value}
                        </div>
                        <div className="text-sm text-white/60 font-medium leading-tight">
                          {metric.label}
                        </div>
                      </div>
                    ))}
                  </div>
                </div>
              </div>
            </a>
          </ScrollReveal>
        )}

        {restCases.length > 0 && (
          <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
            {restCases.map((caseItem, i) => (
              <ScrollReveal key={i} delay={i * 0.1}>
                <a
                  href={caseItem.href || `/cases/${caseItem.slug || ''}`}
                  className="group bain-card block p-8 sm:p-10 h-full flex flex-col"
                >
                  <div className="flex items-center gap-3 mb-8">
                    <Badge className="bg-bg-secondary text-ink border-transparent">
                      {caseItem.industry}
                    </Badge>
                  </div>

                  <h3 className="text-xl lg:text-2xl font-bold text-ink mb-8 leading-[1.2]">
                    {caseItem.title}
                  </h3>

                  <div className="grid grid-cols-3 gap-4 mb-8">
                    {(Array.isArray(caseItem.metrics) ? caseItem.metrics : []).slice(0, 3).map((metric: Record<string, any>, j: number) => (
                      <div key={j}>
                        <div className={cn(
                          'text-xl sm:text-2xl font-black leading-none mb-2',
                          j === 0 ? 'text-brand-ink' : 'text-ink'
                        )}>
                          {metric.value}
                        </div>
                        <div className="text-xs text-text-secondary font-medium leading-tight">
                          {metric.label}
                        </div>
                      </div>
                    ))}
                  </div>

                  <div className="mt-auto pt-4 border-t border-border-primary">
                    <div className="inline-flex items-center gap-2 text-sm font-semibold text-text-secondary group-hover:text-brand-ink transition-colors">
                      <span>了解详情</span>
                      <ArrowRight className="w-4 h-4 transition-transform duration-normal group-hover:translate-x-1" />
                    </div>
                  </div>
                </a>
              </ScrollReveal>
            ))}
          </div>
        )}
      </div>
    </section>
  );
}

// ===== 新闻动态区（对标 Accenture News：最近 3 条 + 查看全部入口）=====
function NewsSection({ news, pageCopy }: { news?: NewsItem[]; pageCopy?: HomePageCopy | null }) {
  const eyebrow = (pageCopy?.newsEyebrow as string) || '新闻动态';
  const titleLines = ((pageCopy?.newsTitle as string) || '公司要闻\n与研发动态').split('\n');
  const ctaLabel = (pageCopy?.newsCtaLabel as string) || '查看全部新闻';
  const NEWS_ITEMS = (news?.length ? news.slice(0, 3) : NEWS.slice(0, 3)) as NewsItem[];

  return (
    <section className="relative py-20 sm:py-28 md:py-36 overflow-hidden bg-bg-secondary" data-testid="news-section">
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
        <div className="flex flex-col md:flex-row md:items-end md:justify-between gap-8 mb-16 sm:mb-20">
          <ScrollReveal className="md:max-w-3xl">
            <div className="flex items-center gap-3 mb-6">
              <div className="w-10 h-px bg-brand" />
              <span className="text-[13px] tracking-[0.12em] font-semibold text-brand-ink">
                {eyebrow}
              </span>
            </div>
            <h2 className="text-2xl sm:text-3xl md:text-4xl lg:text-5xl font-black text-ink tracking-tight leading-[1.05]">
              <StyledTitle lines={titleLines} />
            </h2>
          </ScrollReveal>
          <ScrollReveal delay={0.1}>
            <StaticLink
              href="/news"
              className="group inline-flex items-center min-h-6 gap-3 text-ink font-semibold text-sm"
            >
              {ctaLabel}
              <ArrowRight className="w-4 h-5 transition-transform duration-normal group-hover:translate-x-2 text-text-secondary group-hover:text-brand-ink" />
            </StaticLink>
          </ScrollReveal>
        </div>

        <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
          {NEWS_ITEMS.map((item, i) => (
            <ScrollReveal key={item.id} delay={i * 0.1}>
              <StaticLink
                href={`/news/${item.id}`}
                className="group bain-card block p-8 sm:p-9 h-full flex flex-col"
              >
                <div className="flex items-center gap-3 mb-6">
                  <Badge variant="outline" className="text-xs border-brand/30 text-brand-ink">
                    {item.category}
                  </Badge>
                  <span className="flex items-center gap-1.5 text-xs text-text-muted">
                    <Calendar className="w-3.5 h-3.5" aria-hidden="true" />
                    {item.date}
                  </span>
                </div>
                <h3 className="text-lg lg:text-xl font-bold text-ink mb-4 leading-[1.3] line-clamp-2 group-hover:text-brand-ink transition-colors duration-normal">
                  {item.title}
                </h3>
                <p className="text-sm text-text-secondary leading-relaxed mb-6 line-clamp-2 flex-1">
                  {item.excerpt}
                </p>
                <div className="pt-4 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
                    <ArrowRight className="w-4 h-4 transition-transform duration-normal group-hover:translate-x-1" />
                  </span>
                </div>
              </StaticLink>
            </ScrollReveal>
          ))}
        </div>
      </div>
    </section>
  );
}

// ===== CTA 区：克制强调，品牌红仅用于按钮 =====
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 = canonicalCtaLabel(heroData?.ctaLabel || (pageCopy?.ctaLabel as string)) || CTA_LABELS.consult;
  const ctaHref = heroData?.ctaHref || '/contact';

  return (
    <section className="relative py-24 sm:py-32 md:py-40 overflow-hidden bg-bg-secondary">
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
        <ScrollReveal className="max-w-3xl">
          <h2 className="text-2xl sm:text-3xl md:text-4xl lg:text-5xl font-black text-ink tracking-tight leading-[1.05] mb-10 sm:mb-14">
            {ctaTitleLine1}
            <br />
            {ctaTitleLine2}
          </h2>
          <CTAButton href={ctaHref}>{ctaLabel}</CTAButton>
        </ScrollReveal>
      </div>
    </section>
  );
}

// ===== 主页面组件 =====
export default function HomeContentV15({ services, cases, stats, heroData, news, pageCopy }: {
  services?: Record<string, any>[];
  cases?: Record<string, any>[];
  stats?: Record<string, any>[];
  heroData?: Record<string, any> | null;
  news?: NewsItem[];
  pageCopy?: HomePageCopy | null;
}) {
  return (
    <div>
      {/* 1. Hero：浅色 editorial 画布 + 品牌红单电压（参考 Accenture Radical Relevance） */}
      <HeroSection heroData={heroData} />

      {/* 1.5 成果带：数据指标下沉，滚动触发（Glance 层，声明先行的承接） */}
      <HeroStatsBand stats={stats} />

      {/* 2. 信任区：量化数据成果展示 */}
      <TrustSection pageCopy={pageCopy} />

      {/* 3. 章节式叙事：问题 → 方法 → 结果 */}
      <NarrativeSection pageCopy={pageCopy} />

      {/* 4. 行业洞察：思想领导力支柱（对标 Accenture Insights） */}
      <InsightsSection pageCopy={pageCopy} />

      {/* 5. 服务区：等宽卡片 + 兜底数据 */}
      <ServicesSection services={services} pageCopy={pageCopy} />

      {/* 6. 创始人观点：人格化背书（对标 Accenture CEO Quote） */}
      <FounderQuoteSection pageCopy={pageCopy} />

      {/* 7. 案例区：轻量快照卡片 */}
      <CasesSection cases={cases} pageCopy={pageCopy} />

      {/* 8. 新闻动态：持续动态（对标 Accenture News） */}
      <NewsSection news={news} pageCopy={pageCopy} />

      {/* 9. CTA：克制强调，品牌红仅用于按钮 */}
      <CTASection heroData={heroData} pageCopy={pageCopy} />
    </div>
  );
}