fix(breadcrumb): add aria-label to news detail breadcrumb for alignment

Also accumulates other pre-existing changes:
- refactor(icons): replace deprecated BarChart3 with TrendingUp
- refactor(services): replace emoji icons with LucideIcon components
- refactor(footer): use logo-white for dark background
- cleanup(archive): remove unused archive components
- cleanup(constants): remove unused types and exports

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

@@ -1,12 +1,13 @@
 'use client';
 
 import { motion } from 'framer-motion';
-import { ArrowUpRight, CheckCircle2 } from 'lucide-react';
+import { ArrowUpRight, CheckCircle2, Zap, Clock, Users, Award, TrendingUp, Shield } from 'lucide-react';
+import type { LucideIcon } from 'lucide-react';
 import type { Service, CaseStudy } from '@/lib/constants/services';
 
 const EASE_OUT = [0.22, 1, 0.36, 1] as const;
 
-const FEATURE_ICONS = ['⚡', '⏱', '👥', '🏆', '📈', '🛡'];
+const FEATURE_ICONS: LucideIcon[] = [Zap, Clock, Users, Award, TrendingUp, Shield];
 
 function DetailHero({ service }: { service: Service }) {
   const firstBenefit = service.benefits?.[0] || '效率提升 40%';
@@ -169,7 +170,7 @@ function FeaturesSection({ service }: { service: Service }) {
         <div className="grid md:grid-cols-2 lg:grid-cols-3 gap-px bg-border-primary">
           {service.features.map((feature, index) => {
             const [title, desc] = feature.split('：');
-            const icon = FEATURE_ICONS[index % FEATURE_ICONS.length];
+            const Icon = FEATURE_ICONS[index % FEATURE_ICONS.length]!;
 
             return (
               <motion.div
@@ -181,7 +182,7 @@ function FeaturesSection({ service }: { service: Service }) {
                 className="group relative p-8 sm:p-10 transition-all duration-500 hover:bg-bg-secondary hover:shadow-lg hover:-translate-y-1 bg-white"
               >
                 <div className="relative z-10">
-                  <div className="text-3xl mb-6">{icon}</div>
+                  <Icon className="w-8 h-8 mb-6 text-brand" />
                   <h3 className="text-lg sm:text-xl font-bold mb-3 text-ink group-hover:text-brand transition-colors duration-300">
                     {desc ? title : feature.slice(0, 10)}
                   </h3>