feat: 完成navbar隐藏优化和侧边栏冻结功能

- 优化navbar滚动隐藏逻辑，更敏感响应
- 添加返回顶部按钮，固定在右下角
- 实现profile页面侧边栏真正冻结效果
- 修复首页滑动指示器位置
- 优化整体布局确保首屏内容完整显示

src/app/page.tsx

@@ -1,65 +1,304 @@
-import Image from "next/image";
+'use client';
+
+import { useState, useEffect } from 'react';
+import Link from 'next/link';
+import { motion, useScroll, useTransform } from 'framer-motion';
+import { 
+  ArrowRightIcon, 
+  ShieldCheckIcon, 
+  CloudArrowUpIcon, 
+  ShareIcon,
+  CubeIcon,
+  UserGroupIcon,
+  SparklesIcon,
+  RocketLaunchIcon
+} from '@heroicons/react/24/outline';
 
 export default function Home() {
+  const { scrollYProgress } = useScroll();
+  const opacity = useTransform(scrollYProgress, [0, 0.3], [1, 0]);
+  const scale = useTransform(scrollYProgress, [0, 0.3], [1, 0.8]);
+  
+  const [mousePosition, setMousePosition] = useState({ x: 0, y: 0 });
+  const [isHovered, setIsHovered] = useState(false);
+
+  useEffect(() => {
+    const handleMouseMove = (e: MouseEvent) => {
+      setMousePosition({ x: e.clientX, y: e.clientY });
+    };
+    window.addEventListener('mousemove', handleMouseMove);
+    return () => window.removeEventListener('mousemove', handleMouseMove);
+  }, []);
+
+  const features = [
+    {
+      icon: ShieldCheckIcon,
+      title: "Yggdrasil认证",
+      description: "完整的Minecraft Yggdrasil API支持，安全可靠的用户认证系统",
+      color: "from-amber-400 to-orange-500"
+    },
+    {
+      icon: CloudArrowUpIcon,
+      title: "云端存储",
+      description: "无限皮肤存储空间，自动备份，随时随地访问你的皮肤库",
+      color: "from-orange-400 to-red-500"
+    },
+    {
+      icon: ShareIcon,
+      title: "社区分享",
+      description: "与全球玩家分享创作，发现灵感，建立你的粉丝群体",
+      color: "from-red-400 to-pink-500"
+    },
+    {
+      icon: CubeIcon,
+      title: "3D预览",
+      description: "实时3D皮肤预览，360度旋转查看，支持多种渲染模式",
+      color: "from-pink-400 to-purple-500"
+    }
+  ];
+
+  const stats = [
+    { number: "50K+", label: "注册用户" },
+    { number: "200K+", label: "皮肤上传" },
+    { number: "1M+", label: "月活用户" },
+    { number: "99.9%", label: "服务可用性" }
+  ];
+
   return (
-    <div className="flex min-h-screen items-center justify-center bg-zinc-50 font-sans dark:bg-black">
-      <main className="flex min-h-screen w-full max-w-3xl flex-col items-center justify-between py-32 px-16 bg-white dark:bg-black sm:items-start">
-        <Image
-          className="dark:invert"
-          src="/next.svg"
-          alt="Next.js logo"
-          width={100}
-          height={20}
-          priority
+    <div className="min-h-screen bg-gradient-to-br from-slate-50 via-orange-50 to-amber-50 dark:from-gray-900 dark:via-gray-800 dark:to-gray-900">
+      {/* Animated Background */}
+      <div className="fixed inset-0 overflow-hidden pointer-events-none">
+        <div className="absolute -top-40 -right-40 w-80 h-80 bg-gradient-to-br from-orange-400/20 to-amber-400/20 rounded-full blur-3xl animate-pulse"></div>
+        <div className="absolute -bottom-40 -left-40 w-80 h-80 bg-gradient-to-tr from-pink-400/20 to-orange-400/20 rounded-full blur-3xl animate-pulse delay-1000"></div>
+        <div 
+          className="absolute w-32 h-32 bg-gradient-to-r from-orange-400/30 to-amber-400/30 rounded-full blur-2xl transition-all duration-300 ease-out"
+          style={{
+            left: mousePosition.x - 64,
+            top: mousePosition.y - 64,
+            transform: isHovered ? 'scale(1.5)' : 'scale(1)'
+          }}
         />
-        <div className="flex flex-col items-center gap-6 text-center sm:items-start sm:text-left">
-          <h1 className="max-w-xs text-3xl font-semibold leading-10 tracking-tight text-black dark:text-zinc-50">
-            To get started, edit the page.tsx file.
-          </h1>
-          <p className="max-w-md text-lg leading-8 text-zinc-600 dark:text-zinc-400">
-            Looking for a starting point or more instructions? Head over to{" "}
-            <a
-              href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-              className="font-medium text-zinc-950 dark:text-zinc-50"
-            >
-              Templates
-            </a>{" "}
-            or the{" "}
-            <a
-              href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-              className="font-medium text-zinc-950 dark:text-zinc-50"
-            >
-              Learning
-            </a>{" "}
-            center.
-          </p>
-        </div>
-        <div className="flex flex-col gap-4 text-base font-medium sm:flex-row">
-          <a
-            className="flex h-12 w-full items-center justify-center gap-2 rounded-full bg-foreground px-5 text-background transition-colors hover:bg-[#383838] dark:hover:bg-[#ccc] md:w-[158px]"
-            href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
+      </div>
+
+      {/* Hero Section */}
+      <motion.section 
+        style={{ opacity, scale }}
+        className="relative min-h-screen flex items-center justify-center px-4 sm:px-6 lg:px-8 overflow-hidden"
+      >
+        <div className="relative z-10 max-w-7xl mx-auto text-center">
+          <motion.div
+            initial={{ opacity: 0, y: 30 }}
+            animate={{ opacity: 1, y: 0 }}
+            transition={{ duration: 0.8, ease: "easeOut" }}
           >
-            <Image
-              className="dark:invert"
-              src="/vercel.svg"
-              alt="Vercel logomark"
-              width={16}
-              height={16}
+            {/* Logo Animation */}
+            <motion.div 
+              className="mb-8 flex justify-center"
+              initial={{ scale: 0, rotate: -180 }}
+              animate={{ scale: 1, rotate: 0 }}
+              transition={{ duration: 1, type: "spring", stiffness: 100 }}
+            >
+              <div className="relative">
+                <div className="w-24 h-24 bg-gradient-to-br from-orange-400 via-amber-500 to-orange-600 rounded-3xl flex items-center justify-center shadow-2xl">
+                  <span className="text-4xl font-bold text-white">CS</span>
+                </div>
+                <motion.div 
+                  className="absolute -inset-2 bg-gradient-to-br from-orange-400/30 to-amber-500/30 rounded-3xl blur-lg"
+                  animate={{ scale: [1, 1.1, 1] }}
+                  transition={{ duration: 2, repeat: Infinity }}
+                />
+              </div>
+            </motion.div>
+
+            <h1 className="text-6xl md:text-8xl font-black text-gray-900 dark:text-white mb-6 tracking-tight">
+              <span className="bg-gradient-to-r from-orange-500 via-amber-500 to-orange-600 bg-clip-text text-transparent">
+                CarrotSkin
+              </span>
+            </h1>
+            
+            <motion.p 
+              className="text-xl md:text-2xl text-gray-600 dark:text-gray-300 mb-8 max-w-3xl mx-auto font-light leading-relaxed"
+              initial={{ opacity: 0, y: 20 }}
+              animate={{ opacity: 1, y: 0 }}
+              transition={{ delay: 0.3, duration: 0.6 }}
+            >
+              新一代 <span className="font-semibold text-orange-500">Minecraft Yggdrasil</span> 皮肤站
+              <br className="hidden sm:block" />
+              为创作者打造的现代化皮肤管理平台
+            </motion.p>
+
+            <motion.div 
+              className="flex flex-col sm:flex-row gap-4 justify-center items-center"
+              initial={{ opacity: 0, y: 20 }}
+              animate={{ opacity: 1, y: 0 }}
+              transition={{ delay: 0.5, duration: 0.6 }}
+            >
+              <Link 
+                href="/register" 
+                className="group relative overflow-hidden bg-gradient-to-r from-orange-500 to-amber-500 text-white font-semibold py-4 px-8 rounded-2xl transition-all duration-300 hover:shadow-2xl hover:shadow-orange-500/25"
+                onMouseEnter={() => setIsHovered(true)}
+                onMouseLeave={() => setIsHovered(false)}
+              >
+                <span className="relative z-10 flex items-center space-x-2">
+                  <span>立即开始</span>
+                  <ArrowRightIcon className="w-5 h-5 group-hover:translate-x-1 transition-transform" />
+                </span>
+                <motion.div 
+                  className="absolute inset-0 bg-gradient-to-r from-amber-500 to-orange-500"
+                  initial={{ x: '-100%' }}
+                  whileHover={{ x: 0 }}
+                  transition={{ duration: 0.3 }}
+                />
+              </Link>
+              
+              <Link 
+                href="/skins" 
+                className="group border-2 border-orange-200 dark:border-orange-700 text-orange-600 dark:text-orange-400 font-semibold py-4 px-8 rounded-2xl transition-all duration-300 hover:bg-orange-500 hover:text-white hover:border-orange-500"
+              >
+                <span className="flex items-center space-x-2">
+                  <span>探索皮肤库</span>
+                  <SparklesIcon className="w-5 h-5 group-hover:rotate-12 transition-transform" />
+                </span>
+              </Link>
+            </motion.div>
+          </motion.div>
+        </div>
+
+        {/* Scroll Indicator */}
+        <motion.div 
+          className="absolute bottom-12 left-1/2 transform -translate-x-1/2"
+          animate={{ y: [0, 10, 0] }}
+          transition={{ duration: 2, repeat: Infinity }}
+        >
+          <div className="w-6 h-10 border-2 border-orange-400 rounded-full flex justify-center">
+            <motion.div 
+              className="w-1 h-3 bg-orange-400 rounded-full mt-2"
+              animate={{ y: [0, 16, 0] }}
+              transition={{ duration: 2, repeat: Infinity }}
             />
-            Deploy Now
-          </a>
-          <a
-            className="flex h-12 w-full items-center justify-center rounded-full border border-solid border-black/[.08] px-5 transition-colors hover:border-transparent hover:bg-black/[.04] dark:border-white/[.145] dark:hover:bg-[#1a1a1a] md:w-[158px]"
-            href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            Documentation
-          </a>
+          </div>
+        </motion.div>
+      </motion.section>
+
+      {/* Stats Section */}
+      <section className="py-20 px-4 sm:px-6 lg:px-8">
+        <div className="max-w-7xl mx-auto">
+          <div className="grid grid-cols-2 lg:grid-cols-4 gap-8">
+            {stats.map((stat, index) => (
+              <motion.div
+                key={index}
+                initial={{ opacity: 0, y: 30 }}
+                whileInView={{ opacity: 1, y: 0 }}
+                transition={{ delay: index * 0.1, duration: 0.6 }}
+                viewport={{ once: true }}
+                className="text-center group"
+              >
+                <div className="text-4xl md:text-5xl font-black bg-gradient-to-r from-orange-500 to-amber-500 bg-clip-text text-transparent mb-2">
+                  {stat.number}
+                </div>
+                <div className="text-gray-600 dark:text-gray-400 font-medium">
+                  {stat.label}
+                </div>
+                <div className="h-1 w-16 bg-gradient-to-r from-orange-400 to-amber-400 mx-auto mt-3 rounded-full group-hover:w-24 transition-all duration-300"></div>
+              </motion.div>
+            ))}
+          </div>
         </div>
-      </main>
+      </section>
+
+      {/* Features Section */}
+      <section className="py-20 px-4 sm:px-6 lg:px-8 relative">
+        <div className="max-w-7xl mx-auto">
+          <motion.div
+            initial={{ opacity: 0, y: 30 }}
+            whileInView={{ opacity: 1, y: 0 }}
+            transition={{ duration: 0.8 }}
+            viewport={{ once: true }}
+            className="text-center mb-16"
+          >
+            <h2 className="text-4xl md:text-5xl font-black text-gray-900 dark:text-white mb-6">
+              为创作者而生的
+              <span className="bg-gradient-to-r from-orange-500 to-amber-500 bg-clip-text text-transparent"> 强大功能</span>
+            </h2>
+            <p className="text-xl text-gray-600 dark:text-gray-400 max-w-3xl mx-auto font-light">
+              从上传到分享，从管理到展示，每一个细节都为提升你的创作体验而设计
+            </p>
+          </motion.div>
+
+          <div className="grid grid-cols-1 lg:grid-cols-2 gap-8">
+            {features.map((feature, index) => (
+              <motion.div
+                key={index}
+                initial={{ opacity: 0, x: index % 2 === 0 ? -50 : 50 }}
+                whileInView={{ opacity: 1, x: 0 }}
+                transition={{ delay: index * 0.1, duration: 0.6 }}
+                viewport={{ once: true }}
+                className="group relative"
+              >
+                <div className="bg-white/70 dark:bg-gray-800/70 backdrop-blur-lg rounded-3xl p-8 shadow-xl hover:shadow-2xl transition-all duration-300 border border-white/20 dark:border-gray-700/50">
+                  <div className={`w-16 h-16 bg-gradient-to-br ${feature.color} rounded-2xl flex items-center justify-center mb-6 shadow-lg group-hover:scale-110 transition-transform duration-300`}>
+                    <feature.icon className="w-8 h-8 text-white" />
+                  </div>
+                  <h3 className="text-2xl font-bold text-gray-900 dark:text-white mb-4">
+                    {feature.title}
+                  </h3>
+                  <p className="text-gray-600 dark:text-gray-300 leading-relaxed">
+                    {feature.description}
+                  </p>
+                </div>
+              </motion.div>
+            ))}
+          </div>
+        </div>
+      </section>
+
+      {/* CTA Section */}
+      <section className="py-20 px-4 sm:px-6 lg:px-8 relative overflow-hidden">
+        <div className="absolute inset-0 bg-gradient-to-br from-orange-500 via-amber-500 to-orange-600">
+          <div className="absolute inset-0 bg-black/10"></div>
+        </div>
+        
+        <motion.div 
+          className="relative z-10 max-w-4xl mx-auto text-center"
+          initial={{ opacity: 0, y: 30 }}
+          whileInView={{ opacity: 1, y: 0 }}
+          transition={{ duration: 0.8 }}
+          viewport={{ once: true }}
+        >
+          <motion.div
+            animate={{ rotate: 360 }}
+            transition={{ duration: 20, repeat: Infinity, ease: "linear" }}
+            className="w-32 h-32 bg-white/10 rounded-full flex items-center justify-center mx-auto mb-8"
+          >
+            <RocketLaunchIcon className="w-16 h-16 text-white/80" />
+          </motion.div>
+          
+          <h2 className="text-4xl md:text-5xl font-black text-white mb-6">
+            准备开启创作之旅？
+          </h2>
+          <p className="text-xl text-white/90 mb-8 max-w-2xl mx-auto font-light">
+            加入CarrotSkin，体验新一代Minecraft皮肤管理平台，让你的创意无限绽放
+          </p>
+          
+          <div className="flex flex-col sm:flex-row gap-4 justify-center">
+            <Link 
+              href="/register" 
+              className="group bg-white text-orange-600 hover:bg-gray-100 font-bold py-4 px-8 rounded-2xl transition-all duration-300 inline-flex items-center space-x-2 shadow-2xl"
+            >
+              <span>免费注册</span>
+              <ArrowRightIcon className="w-5 h-5 group-hover:translate-x-1 transition-transform" />
+            </Link>
+            
+            <Link 
+              href="/api" 
+              className="border-2 border-white/30 text-white hover:bg-white/10 font-bold py-4 px-8 rounded-2xl transition-all duration-300 inline-flex items-center space-x-2"
+            >
+              <span>查看API文档</span>
+              <UserGroupIcon className="w-5 h-5" />
+            </Link>
+          </div>
+        </motion.div>
+      </section>
     </div>
   );
 }