refactor(hero-section): 移除未使用的动画导入并优化样式类名

删除未使用的动画组件导入(FadeUp, StaggerContainer等)
将min-w-[180px]替换为更简洁的min-w-45
调整背景渐变类名从bg-gradient-to-b到bg-linear-to-b

src/components/sections/hero-section.tsx

@@ -1,9 +1,9 @@
 'use client';
 
 import { useEffect, useRef, useState } from 'react';
-import { motion, AnimatePresence } from 'framer-motion';
+import { motion } from 'framer-motion';
 import { RippleButton, SealButton } from '@/components/ui/ripple-button';
-import { FadeUp, StaggerContainer, StaggerItem, CountUp, FloatingElement, SplitText, GradientText, MagneticButton, BlurReveal, CounterWithEffect } from '@/lib/animations';
+import { SplitText, GradientText, MagneticButton, BlurReveal, CounterWithEffect } from '@/lib/animations';
 import { InkDecoration, InkBackground } from '@/components/ui/ink-decoration';
 import { COMPANY_INFO, STATS } from '@/lib/constants';
 import { ArrowRight, Shield, Zap, Award } from 'lucide-react';
@@ -64,7 +64,7 @@ export function HeroSection() {
     <section 
       id="home" 
       ref={sectionRef}
-      className="relative min-h-screen flex items-center pt-16 overflow-hidden bg-gradient-to-b from-[#FAFAFA] to-white"
+      className="relative min-h-screen flex items-center pt-16 overflow-hidden bg-linear-to-b from-[#FAFAFA] to-white"
     >
       <InkBackground />
       <InkDecoration variant="balanced" />
@@ -115,7 +115,7 @@ export function HeroSection() {
               <SealButton 
                 size="lg"
                 onClick={() => handleScrollTo('contact')}
-                className="min-w-[180px]"
+                className="min-w-45"
               >
                 立即咨询
                 <ArrowRight className="w-4 h-4 ml-2" />
@@ -126,7 +126,7 @@ export function HeroSection() {
                 size="lg"
                 variant="outline"
                 onClick={() => handleScrollTo('about')}
-                className="min-w-[180px]"
+                className="min-w-45"
               >
                 了解更多
               </RippleButton>