perf(motion): 清理末批 P0 —— 移除循环动画 + 删除死代码
按用户决策收尾 Task #16,P0 硬违规 13 → 0: - 移除 3 处循环动画(均违反 CONTEXT.md「禁循环动画」) detail-hero 徽章 Sparkles 旋转 4s、滚动箭头浮动 2s、brand-visuals 半径脉冲 4s → motion.* 改静态元素,保留视觉语义但不再循环 - 删除死代码 src/lib/animations.tsx(923 行,全站零引用,含 10 处 P0 + spring variants) 同步删除 src/lib/animations.test.tsx - 级联修复:brand-visuals 因删 guard 冗余的 shouldReduceMotion 声明一并移除 验证: - 审计 P0 13 → 0,P1 163→156,P2 28→25(死代码移除导致分母下降) - tsc --noEmit 0 error;eslint 0 error - 视觉基线不变:时长/循环改动在 reducedMotion+animations disabled 下不改变最终像素
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@@ -5,8 +5,6 @@ import { useReducedMotion } from '@/hooks/use-reduced-motion';
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// ===== 抽象几何装饰 - 用于各 section 背景 =====
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export function GeometricDecoration({ variant = 'circles' }: { variant?: 'circles' | 'lines' | 'grid' | 'waves' }) {
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const shouldReduceMotion = useReducedMotion();
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if (variant === 'circles') {
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return (
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<div className="absolute inset-0 overflow-hidden pointer-events-none" aria-hidden="true">
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@@ -14,14 +12,10 @@ export function GeometricDecoration({ variant = 'circles' }: { variant?: 'circle
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<circle cx="100" cy="100" r="80" fill="none" stroke="currentColor" className="text-[var(--color-brand)]" strokeWidth="0.5" />
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<circle cx="100" cy="100" r="60" fill="none" stroke="currentColor" className="text-[var(--color-brand)]" strokeWidth="0.5" />
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<circle cx="100" cy="100" r="40" fill="none" stroke="currentColor" className="text-[var(--color-brand)]" strokeWidth="0.5" />
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{!shouldReduceMotion && (
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<motion.circle
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cx="100" cy="100" r="20"
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fill="rgba(var(--color-brand-rgb, 196, 30, 58), 0.1)"
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animate={{ r: [20, 35, 20], opacity: [0.1, 0.05, 0.1] }}
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transition={{ duration: 4, repeat: Infinity, ease: "easeInOut" }}
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/>
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)}
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<circle
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cx="100" cy="100" r="20"
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fill="rgba(var(--color-brand-rgb, 196, 30, 58), 0.1)"
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/>
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</svg>
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<svg className="absolute bottom-[15%] left-[8%] w-48 h-48 opacity-[0.03]" viewBox="0 0 200 200">
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<rect x="40" y="40" width="120" height="120" rx="20" fill="none" stroke="currentColor" className="text-[var(--color-text-subtle)]" strokeWidth="0.5" transform="rotate(15 100 100)" />
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