初始提交：AI医疗展示网站，包含回到顶部按钮功能（排除大文件）

src/components/Hero.jsx

@@ -0,0 +1,200 @@
+import React from 'react';
+import { motion } from 'framer-motion';
+import { Brain, Heart, Activity, Stethoscope, TrendingUp, Network } from 'lucide-react';
+
+const Hero = () => {
+  const iconVariants = {
+    hidden: { opacity: 0, scale: 0 },
+    visible: { 
+      opacity: 0.1, 
+      scale: 1,
+      transition: { duration: 1, delay: 0.5 }
+    },
+    float: {
+      y: [-10, 10, -10],
+      transition: { duration: 3, repeat: Infinity, ease: "easeInOut" }
+    }
+  };
+
+  const textVariants = {
+    hidden: { opacity: 0, y: 50 },
+    visible: { 
+      opacity: 1, 
+      y: 0,
+      transition: { duration: 0.8, ease: "easeOut" }
+    }
+  };
+
+  const badgeVariants = {
+    hidden: { opacity: 0, scale: 0.8 },
+    visible: { 
+      opacity: 1, 
+      scale: 1,
+      transition: { duration: 0.6, delay: 1.2 }
+    }
+  };
+
+  return (
+    <section id="hero" className="relative min-h-screen flex items-center justify-center medical-gradient overflow-hidden">
+      {/* 背景装饰图标 */}
+      <motion.div
+        className="absolute top-20 left-20 text-white"
+        variants={iconVariants}
+        initial="hidden"
+        animate={["visible", "float"]}
+      >
+        <Heart className="w-24 h-24" />
+      </motion.div>
+      
+      <motion.div
+        className="absolute top-32 right-32 text-white"
+        variants={iconVariants}
+        initial="hidden"
+        animate={["visible", "float"]}
+        style={{ animationDelay: '1s' }}
+      >
+        <Brain className="w-20 h-20" />
+      </motion.div>
+      
+      <motion.div
+        className="absolute bottom-32 left-32 text-white"
+        variants={iconVariants}
+        initial="hidden"
+        animate={["visible", "float"]}
+        style={{ animationDelay: '2s' }}
+      >
+        <Activity className="w-16 h-16" />
+      </motion.div>
+      
+      <motion.div
+        className="absolute bottom-40 right-40 text-white"
+        variants={iconVariants}
+        initial="hidden"
+        animate={["visible", "float"]}
+        style={{ animationDelay: '1.5s' }}
+      >
+        <Stethoscope className="w-14 h-14" />
+      </motion.div>
+
+      {/* 主要内容 */}
+      <div className="relative z-10 text-center text-white px-4 max-w-6xl mx-auto">
+        <motion.h1
+          className="text-5xl md:text-7xl font-bold mb-8 leading-tight"
+          variants={textVariants}
+          initial="hidden"
+          animate="visible"
+        >
+          AI如何协助并
+          <br />
+          <span className="bg-gradient-to-r from-blue-200 to-purple-200 bg-clip-text text-transparent">
+            赋能医生
+          </span>
+        </motion.h1>
+        
+        <motion.p
+          className="text-xl md:text-2xl mb-12 text-white/90 font-light"
+          variants={textVariants}
+          initial="hidden"
+          animate="visible"
+          transition={{ delay: 0.3 }}
+        >
+          新一代大模型原生临床研究智能解决方案
+        </motion.p>
+        
+        <motion.div
+          className="medical-card p-8 mb-12 max-w-2xl mx-auto"
+          variants={textVariants}
+          initial="hidden"
+          animate="visible"
+          transition={{ delay: 0.6 }}
+        >
+          <div className="text-gray-800 space-y-3">
+            <div className="flex items-center justify-center space-x-3">
+              <div className="w-2 h-2 bg-blue-500 rounded-full"></div>
+              <span className="text-lg font-medium">北京数耀科技有限公司</span>
+            </div>
+            <div className="flex items-center justify-center space-x-3">
+              <div className="w-2 h-2 bg-green-500 rounded-full"></div>
+              <span className="text-lg font-medium">2025年6月</span>
+            </div>
+          </div>
+        </motion.div>
+        
+        {/* AI科技元素 */}
+        <motion.div
+          className="flex flex-wrap justify-center items-center gap-8 text-white/80"
+          variants={badgeVariants}
+          initial="hidden"
+          animate="visible"
+        >
+          <motion.div 
+            className="flex flex-col items-center space-y-2"
+            whileHover={{ scale: 1.1, y: -5 }}
+            transition={{ type: "spring", stiffness: 400, damping: 10 }}
+          >
+            <div className="w-16 h-16 bg-white/20 rounded-full flex items-center justify-center backdrop-blur-sm">
+              <Brain className="w-8 h-8" />
+            </div>
+            <span className="text-sm font-medium">人工智能</span>
+          </motion.div>
+          
+          <motion.div 
+            className="flex flex-col items-center space-y-2"
+            whileHover={{ scale: 1.1, y: -5 }}
+            transition={{ type: "spring", stiffness: 400, damping: 10 }}
+          >
+            <div className="w-16 h-16 bg-white/20 rounded-full flex items-center justify-center backdrop-blur-sm">
+              <Stethoscope className="w-8 h-8" />
+            </div>
+            <span className="text-sm font-medium">智慧医疗</span>
+          </motion.div>
+          
+          <motion.div 
+            className="flex flex-col items-center space-y-2"
+            whileHover={{ scale: 1.1, y: -5 }}
+            transition={{ type: "spring", stiffness: 400, damping: 10 }}
+          >
+            <div className="w-16 h-16 bg-white/20 rounded-full flex items-center justify-center backdrop-blur-sm">
+              <TrendingUp className="w-8 h-8" />
+            </div>
+            <span className="text-sm font-medium">数据分析</span>
+          </motion.div>
+          
+          <motion.div 
+            className="flex flex-col items-center space-y-2"
+            whileHover={{ scale: 1.1, y: -5 }}
+            transition={{ type: "spring", stiffness: 400, damping: 10 }}
+          >
+            <div className="w-16 h-16 bg-white/20 rounded-full flex items-center justify-center backdrop-blur-sm">
+              <Network className="w-8 h-8" />
+            </div>
+            <span className="text-sm font-medium">智能系统</span>
+          </motion.div>
+        </motion.div>
+      </div>
+
+      {/* 滚动指示器 */}
+      <motion.div
+        className="absolute bottom-8 left-1/2 transform -translate-x-1/2"
+        initial={{ opacity: 0, y: 20 }}
+        animate={{ opacity: 1, y: 0 }}
+        transition={{ delay: 2, duration: 0.8 }}
+      >
+        <motion.div
+          className="w-6 h-10 border-2 border-white/50 rounded-full flex justify-center"
+          animate={{ y: [0, 10, 0] }}
+          transition={{ duration: 2, repeat: Infinity }}
+        >
+          <motion.div
+            className="w-1 h-3 bg-white/70 rounded-full mt-2"
+            animate={{ opacity: [1, 0.3, 1] }}
+            transition={{ duration: 2, repeat: Infinity }}
+          />
+        </motion.div>
+      </motion.div>
+    </section>
+  );
+};
+
+export default Hero;
+