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Add dark mode and automatically fit users' system/browser mode #27

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55 changes: 55 additions & 0 deletions app/components/DarkModeToggle.tsx
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Original file line number Diff line number Diff line change
@@ -0,0 +1,55 @@
"use client";
import { useEffect, useState } from "react";

export default function DarkModeToggle() {
const [isDark, setIsDark] = useState(false);

// On mount, check localStorage or system preference
useEffect(() => {
const saved = localStorage.getItem("theme");
if (
saved === "dark" ||
(!saved && window.matchMedia("(prefers-color-scheme: dark)").matches)
) {
setIsDark(true);
document.documentElement.classList.add("dark");
} else {
setIsDark(false);
document.documentElement.classList.remove("dark");
}
}, []);

// Toggle handler
const toggle = () => {
const next = !isDark;
setIsDark(next);
if (next) {
document.documentElement.classList.add("dark");
localStorage.setItem("theme", "dark");
} else {
document.documentElement.classList.remove("dark");
localStorage.setItem("theme", "light");
}
};

return (
<button
aria-label="Toggle dark mode"
onClick={toggle}
style={{
position: "fixed",
top: 16,
right: 16,
zIndex: 100,
background: "none",
border: "none",
cursor: "pointer",
fontSize: 24,
color: isDark ? "#ededed" : "#171717",
transition: "color 0.2s",
}}
>
{isDark ? "🌙" : "☀️"}
</button>
);
}
0 public/images/word/word-img-01.png → ...sics/pytorch/index.assets/word-img-01.png
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0 public/images/word/word-img-02.png → ...sics/pytorch/index.assets/word-img-02.png
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4 changes: 2 additions & 2 deletions app/docs/ai/llm-basics/pytorch/index.mdx
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Expand Up @@ -35,8 +35,8 @@ PyTorch是现代深度学习最重要的框架之一，特别在研究和大模
## 核心概念

- **张量 (Tensor)**：PyTorch 的核心数据结构，支持 GPU 加速的多维数组
![](/images/word/word-img-01.png)
![](/images/word/word-img-02.png)
![](./index.assets/word-img-01.png)
![](./index.assets/word-img-02.png)
- **自动梯度 (Autograd)**：动态计算图与自动微分系统
- **神经网络模块 (nn.Module)**：模块化构建神经网络
- **训练循环**：优化器、损失函数、学习率调度等
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3 changes: 3 additions & 0 deletions app/layout.tsx
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Expand Up @@ -4,6 +4,8 @@ import { RootProvider } from "fumadocs-ui/provider";
import Script from "next/script";
import "./globals.css";

import DarkModeToggle from "@/app/components/DarkModeToggle";

const geistSans = localFont({
src: "./fonts/GeistVF.woff",
variable: "--font-geist-sans",
Expand All @@ -30,6 +32,7 @@ export default function RootLayout({
<body
className={`${geistSans.variable} ${geistMono.variable} antialiased`}
>
<DarkModeToggle />
<RootProvider>{children}</RootProvider>
<Script
src="https://www.googletagmanager.com/gtag/js?id=G-ED4GVN8YVW"
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