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<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Box Shadow 生成器 - WebUtils</title>
<!-- SEO Meta Tags -->
<meta name="description" content="可视化创建 CSS box-shadow，支持多层阴影和预设样式" />
<meta name="keywords" content="box-shadow 阴影 css 生成器 预设 多层" />
<meta name="author" content="WebUtils" />
<meta name="robots" content="index, follow" />
<link rel="canonical" href="https://tools.realtime-ai.chat/tools/dev/box-shadow.html" />
<!-- Open Graph -->
<meta property="og:title" content="Box Shadow 生成器 - WebUtils" />
<meta property="og:description" content="可视化创建 CSS box-shadow，支持多层阴影和预设样式" />
<meta property="og:type" content="website" />
<meta property="og:url" content="https://tools.realtime-ai.chat/tools/dev/box-shadow.html" />
<meta property="og:site_name" content="WebUtils" />
<meta property="og:locale" content="zh_CN" />
<!-- Twitter Card -->
<meta name="twitter:card" content="summary" />
<meta name="twitter:title" content="Box Shadow 生成器 - WebUtils" />
<meta name="twitter:description" content="可视化创建 CSS box-shadow，支持多层阴影和预设样式" />
<!-- OG Image -->
<meta property="og:image" content="https://tools.realtime-ai.chat/social-preview.png" />
<meta property="og:image:width" content="1280" />
<meta property="og:image:height" content="640" />
<meta property="og:image:type" content="image/png" />
<meta name="twitter:image" content="https://tools.realtime-ai.chat/social-preview.png" />
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link
href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap"
rel="stylesheet"
/>
<style>
:root {
--bg-deep: #0a0a0f;
--bg-surface: #12121a;
--bg-card: #1a1a24;
--bg-input: #0e0e14;
--text-primary: #e8e8ed;
--text-secondary: #8888a0;
--text-muted: #55556a;
--border-subtle: #2a2a3a;
--border-strong: #3a3a4a;
--accent-cyan: #00f5d4;
--accent-magenta: #f72585;
--accent-green: #10b981;
--accent-red: #f43f5e;
--accent-yellow: #fbbf24;
--accent-blue: #4cc9f0;
--accent-purple: #7b2cbf;
--radius-sm: 4px;
--radius-md: 8px;
--radius-lg: 12px;
--font-sans:
"Space Grotesk", -apple-system, blinkmacsystemfont, "Segoe UI", roboto, sans-serif;
--font-mono: "JetBrains Mono", "Courier New", monospace;
--shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
[data-theme="light"] {
--bg-deep: #fafafa;
--bg-surface: #fff;
--bg-card: #fff;
--bg-input: #f5f5f5;
--text-primary: #1a1a1a;
--text-secondary: #666;
--text-muted: #999;
--border-subtle: #e5e5e5;
--border-strong: #d5d5d5;
--accent-cyan: #00d4b8;
--accent-magenta: #e63975;
--shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
.theme-toggle {
position: fixed;
top: 1rem;
right: 1rem;
width: 40px;
height: 40px;
border-radius: 50%;
border: 1px solid var(--border-subtle);
background: var(--color-bg-card);
cursor: pointer;
font-size: 1.2rem;
z-index: 100;
transition: all 0.2s;
}
.theme-toggle:hover {
transform: scale(1.1);
}
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
font-family: var(--font-sans);
background: var(--color-bg-deep);
color: var(--color-text-primary);
min-height: 100vh;
line-height: 1.6;
}
.bg-grid {
position: fixed;
inset: 0;
background-image:
linear-gradient(rgb(0, 245, 212, 0.03) 1px, transparent 1px),
linear-gradient(90deg, rgb(0, 245, 212, 0.03) 1px, transparent 1px);
background-size: 50px 50px;
pointer-events: none;
z-index: 0;
}
.container {
position: relative;
z-index: 1;
max-width: 1200px;
margin: 0 auto;
padding: 24px;
}
.back-link {
display: inline-flex;
align-items: center;
gap: 8px;
font-family: var(--font-mono);
font-size: 0.9rem;
color: var(--color-text-secondary);
text-decoration: none;
margin-bottom: 24px;
transition: color 0.2s;
}
.back-link:hover {
color: var(--color-accent-cyan);
}
header {
margin-bottom: 32px;
}
h1 {
font-family: var(--font-mono);
font-size: 1.75rem;
font-weight: 700;
margin-bottom: 8px;
background: linear-gradient(
135deg,
var(--color-text-primary) 0%,
var(--color-text-secondary) 100%
);
-webkit-text-fill-color: transparent;
background-clip: text;
}
.desc {
color: var(--color-text-secondary);
font-size: 0.95rem;
}
.main-layout {
display: grid;
grid-template-columns: 1fr 380px;
gap: 24px;
}
@media (width <= 900px) {
.main-layout {
grid-template-columns: 1fr;
}
}
.card {
background: var(--color-bg-card);
border: 2px solid var(--border-subtle);
border-radius: var(--radius-lg);
padding: 24px;
}
.card-title {
font-family: var(--font-mono);
font-size: 0.85rem;
font-weight: 600;
color: var(--text-muted);
text-transform: uppercase;
letter-spacing: 0.05em;
margin-bottom: 16px;
display: flex;
align-items: center;
gap: 8px;
}
/* Preview Area */
.preview-section {
display: flex;
flex-direction: column;
gap: 20px;
}
.preview-container {
background: var(--preview-bg, #1a1a2e);
border-radius: var(--radius-md);
min-height: 300px;
display: flex;
align-items: center;
justify-content: center;
position: relative;
overflow: hidden;
transition: background 0.3s;
}
.preview-box {
width: var(--box-size, 160px);
height: var(--box-size, 160px);
background: var(--box-color, #3a3a5a);
border-radius: var(--box-radius, 16px);
transition: all 0.3s ease;
}
.preview-controls {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
gap: 12px;
}
.preview-control {
display: flex;
flex-direction: column;
gap: 6px;
}
.preview-control label {
font-family: var(--font-mono);
font-size: 0.75rem;
color: var(--text-muted);
text-transform: uppercase;
}
.preview-control input[type="color"] {
width: 100%;
height: 36px;
border: 2px solid var(--border-subtle);
border-radius: var(--radius-sm);
background: var(--color-bg-surface);
cursor: pointer;
padding: 2px;
}
.preview-control input[type="color"]:hover {
border-color: var(--color-accent-cyan);
}
.preview-control input[type="number"] {
width: 100%;
padding: 8px 12px;
font-family: var(--font-mono);
font-size: 0.9rem;
background: var(--color-bg-surface);
border: 2px solid var(--border-subtle);
border-radius: var(--radius-sm);
color: var(--color-text-primary);
outline: none;
}
.preview-control input[type="number"]:focus {
border-color: var(--color-accent-cyan);
box-shadow: 0 0 0 3px var(--glow-cyan);
}
/* CSS Output */
.css-output {
margin-top: 20px;
}
.code-block {
background: var(--color-bg-surface);
border: 2px solid var(--border-subtle);
border-radius: var(--radius-md);
padding: 16px;
font-family: var(--font-mono);
font-size: 0.85rem;
color: var(--color-accent-cyan);
white-space: pre-wrap;
word-break: break-all;
max-height: 150px;
overflow-y: auto;
}
.output-actions {
display: flex;
gap: 8px;
margin-top: 12px;
}
/* Controls Panel */
.controls-panel {
display: flex;
flex-direction: column;
gap: 20px;
}
/* Presets */
.presets-grid {
display: grid;
grid-template-columns: repeat(5, 1fr);
gap: 8px;
}
.preset-btn {
aspect-ratio: 1;
background: var(--color-bg-surface);
border: 2px solid var(--border-subtle);
border-radius: var(--radius-sm);
cursor: pointer;
position: relative;
transition: all 0.2s;
display: flex;
align-items: center;
justify-content: center;
}
.preset-btn:hover {
border-color: var(--color-accent-cyan);
transform: translateY(-2px);
}
.preset-btn.active {
border-color: var(--color-accent-cyan);
box-shadow: 0 0 12px var(--glow-cyan);
}
.preset-preview {
width: 24px;
height: 24px;
background: var(--color-bg-card);
border-radius: 4px;
}
.preset-btn[title]::after {
content: attr(title);
position: absolute;
bottom: 100%;
left: 50%;
transform: translateX(-50%);
background: var(--color-bg-card);
color: var(--color-text-primary);
font-size: 0.7rem;
padding: 4px 8px;
border-radius: var(--radius-sm);
white-space: nowrap;
opacity: 0;
pointer-events: none;
transition: opacity 0.2s;
z-index: 10;
}
.preset-btn:hover::after {
opacity: 1;
}
/* Layers Management */
.layers-header {
display: flex;
align-items: center;
justify-content: space-between;
margin-bottom: 12px;
}
.layers-list {
display: flex;
flex-direction: column;
gap: 6px;
max-height: 150px;
overflow-y: auto;
}
.layer-item {
display: flex;
align-items: center;
gap: 8px;
padding: 10px 12px;
background: var(--color-bg-surface);
border: 2px solid var(--border-subtle);
border-radius: var(--radius-sm);
cursor: pointer;
transition: all 0.2s;
}
.layer-item:hover {
border-color: var(--border-strong);
}
.layer-item.active {
border-color: var(--color-accent-cyan);
background: rgb(0, 245, 212, 0.05);
}
.layer-color {
width: 16px;
height: 16px;
border-radius: 4px;
flex-shrink: 0;
}
.layer-name {
font-family: var(--font-mono);
font-size: 0.8rem;
color: var(--color-text-primary);
flex: 1;
}
.layer-toggle {
width: 20px;
height: 20px;
background: transparent;
border: none;
color: var(--text-muted);
cursor: pointer;
font-size: 0.9rem;
padding: 0;
display: flex;
align-items: center;
justify-content: center;
}
.layer-toggle:hover {
color: var(--color-text-primary);
}
.layer-toggle.hidden {
opacity: 0.4;
}
.layer-delete {
width: 20px;
height: 20px;
background: transparent;
border: none;
color: var(--text-muted);
cursor: pointer;
font-size: 1rem;
padding: 0;
display: flex;
align-items: center;
justify-content: center;
}
.layer-delete:hover {
color: var(--accent-magenta);
}
/* Sliders */
.slider-group {
margin-bottom: 16px;
}
.slider-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 8px;
}
.slider-label {
font-family: var(--font-mono);
font-size: 0.8rem;
color: var(--color-text-secondary);
}
.slider-value {
font-family: var(--font-mono);
font-size: 0.8rem;
color: var(--color-accent-cyan);
background: var(--color-bg-surface);
padding: 2px 8px;
border-radius: var(--radius-sm);
}
.slider-input {
width: 100%;
height: 6px;
appearance: none;
background: var(--border-subtle);
border-radius: 3px;
outline: none;
}
.slider-input::-webkit-slider-thumb {
appearance: none;
width: 16px;
height: 16px;
background: var(--color-accent-cyan);
border-radius: 50%;
cursor: pointer;
transition: transform 0.2s;
}
.slider-input::-webkit-slider-thumb:hover {
transform: scale(1.2);
}
.slider-input::-moz-range-thumb {
width: 16px;
height: 16px;
background: var(--color-accent-cyan);
border-radius: 50%;
cursor: pointer;
border: none;
}
/* Color and Inset Row */
.color-inset-row {
display: flex;
gap: 12px;
align-items: flex-end;
margin-bottom: 16px;
}
.color-picker-group {
flex: 1;
}
.color-picker-group label {
display: block;
font-family: var(--font-mono);
font-size: 0.8rem;
color: var(--color-text-secondary);
margin-bottom: 8px;
}
.color-picker-group input[type="color"] {
width: 100%;
height: 36px;
border: 2px solid var(--border-subtle);
border-radius: var(--radius-sm);
background: var(--color-bg-surface);
cursor: pointer;
padding: 2px;
}
.color-picker-group input[type="color"]:hover {
border-color: var(--color-accent-cyan);
}
.inset-toggle {
display: flex;
align-items: center;
gap: 8px;
padding: 8px 16px;
background: var(--color-bg-surface);
border: 2px solid var(--border-subtle);
border-radius: var(--radius-sm);
cursor: pointer;
transition: all 0.2s;
}
.inset-toggle:hover {
border-color: var(--border-strong);
}
.inset-toggle.active {
border-color: var(--color-accent-cyan);
background: rgb(0, 245, 212, 0.1);
}
.inset-toggle input {
display: none;
}
.inset-toggle span {
font-family: var(--font-mono);
font-size: 0.8rem;
color: var(--color-text-secondary);
}
.inset-toggle.active span {
color: var(--color-accent-cyan);
}
/* Buttons */
.btn {
font-family: var(--font-mono);
font-size: 0.85rem;
font-weight: 500;
padding: 10px 16px;
border: 2px solid var(--border-subtle);
border-radius: var(--radius-sm);
background: var(--color-bg-surface);
color: var(--color-text-secondary);
cursor: pointer;
transition: all 0.2s;
}
.btn:hover {
border-color: var(--color-accent-cyan);
color: var(--color-accent-cyan);
}
.btn-primary {
background: var(--color-accent-cyan);
border-color: var(--color-accent-cyan);
color: var(--color-bg-deep);
}
.btn-primary:hover {
background: transparent;
color: var(--color-accent-cyan);
}
.btn-small {
padding: 6px 12px;
font-size: 0.75rem;
}
.btn-icon {
width: 32px;
height: 32px;
padding: 0;
display: flex;
align-items: center;
justify-content: center;
font-size: 1rem;
}
/* Status Message */
.status {
font-family: var(--font-mono);
font-size: 0.8rem;
padding: 8px 12px;
border-radius: var(--radius-sm);
margin-top: 12px;
opacity: 0;
transition: opacity 0.3s;
}
.status.show {
opacity: 1;
}
.status.success {
background: rgb(0, 245, 212, 0.1);
color: var(--color-accent-cyan);
}
.status.error {
background: rgb(247, 37, 133, 0.1);
color: var(--accent-magenta);
}
/* Footer */
footer {
text-align: center;
margin-top: 48px;
padding: 24px 0;
border-top: 1px solid var(--border-subtle);
}
footer p {
font-family: var(--font-mono);
font-size: 0.85rem;
color: var(--text-muted);
}
footer a {
color: var(--color-accent-cyan);
text-decoration: none;
}
footer a:hover {
text-decoration: underline;
}
/* Scrollbar */
::-webkit-scrollbar {
width: 6px;
height: 6px;
}
::-webkit-scrollbar-track {
background: var(--color-bg-surface);
}
::-webkit-scrollbar-thumb {
background: var(--border-strong);
border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
background: var(--text-muted);
}
.breadcrumb {
background: rgba(255, 255, 255, 0.95);
padding: 8px 15px;
border-radius: 20px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
font-size: 0.85rem;
}
.breadcrumb a {
color: #667eea;
text-decoration: none;
}
.breadcrumb a:hover {
text-decoration: underline;
}
.breadcrumb span {
color: #999;
margin: 0 5px;
}
.visually-hidden {
position: absolute;
width: 1px;
height: 1px;
margin: -1px;
padding: 0;
overflow: hidden;
clip: rect(0, 0, 0, 0);
white-space: nowrap;
border: 0;
}
</style>
</head>
<body>
<nav class="breadcrumb">
<a href="../../index.html">首页</a>
<span>›</span>
Box Shadow 生成器
</nav>
<div class="bg-grid"></div>
<div class="container">
<button class="theme-toggle" onclick="toggleTheme()" title="切换主题" aria-label="🌙">
🌙
</button>
<header>
<h1>Box Shadow 生成器</h1>
<p class="desc">可视化创建 CSS box-shadow，支持多层阴影和预设样式</p>
</header>
<div class="main-layout">
<!-- Left: Preview -->
<div class="preview-section">
<div class="card">
<div class="card-title">
<span>预览</span>
</div>
<div class="preview-container" id="previewContainer">
<div class="preview-box" id="previewBox"></div>
</div>
<div class="preview-controls">
<div class="preview-control">
<label for="input----">背景色</label>
<input type="color" id="bgColor" value="#1a1a2e" aria-label="颜色选择器" />
</div>
<div class="preview-control">
<label for="input----">方块色</label>
<input type="color" id="boxColor" value="#3a3a5a" aria-label="颜色选择器" />
</div>
<div class="preview-control">
<label for="input-----px-">尺寸 (px)</label>
<input
type="number"
id="boxSize"
value="160"
min="40"
max="300"
aria-label="数字输入框"
placeholder="请输入数字输入框"
/>
</div>
<div class="preview-control">
<label for="input-----px-">圆角 (px)</label>
<input
type="number"
id="boxRadius"
value="16"
min="0"
max="150"
aria-label="数字输入框"
placeholder="请输入数字输入框"
/>
</div>
</div>
</div>
<!-- CSS Output -->
<div class="card css-output">
<div class="card-title">
<span>CSS 代码</span>
</div>
<div class="code-block" id="codeOutput">
box-shadow: 0px 4px 12px 0px rgba(0, 0, 0, 0.25);
</div>
<div class="output-actions">
<button class="btn btn-primary" id="copyBtn">复制代码</button>
<button class="btn" id="shareBtn">分享链接</button>
<button class="btn" id="resetBtn">重置</button>
</div>
<div class="status" id="status"></div>
</div>
</div>
<!-- Right: Controls -->
<div class="controls-panel">
<!-- Presets -->
<div class="card">
<div class="card-title">
<span>预设样式</span>
</div>
<div class="presets-grid" id="presetsGrid"></div>
</div>
<!-- Layers -->
<div class="card">
<div class="layers-header">
<div class="card-title" style="margin-bottom: 0">
<span>阴影层</span>
</div>
<button class="btn btn-small btn-icon" id="addLayerBtn" title="添加层">+</button>
</div>
<div class="layers-list" id="layersList"></div>
</div>
<!-- Shadow Controls -->
<div class="card">
<div class="card-title">
<span>阴影参数</span>
</div>
<div class="slider-group">
<div class="slider-header">
<span class="slider-label">X 偏移</span>
<span class="slider-value" id="offsetXValue">0px</span>
</div>
<input
type="range"
class="slider-input"
id="offsetX"
min="-100"
max="100"
value="0"
/>
</div>
<div class="slider-group">
<div class="slider-header">
<span class="slider-label">Y 偏移</span>
<span class="slider-value" id="offsetYValue">4px</span>
</div>
<input
type="range"
class="slider-input"
id="offsetY"
min="-100"
max="100"
value="4"
/>
</div>
<div class="slider-group">
<div class="slider-header">
<span class="slider-label">模糊半径</span>
<span class="slider-value" id="blurValue">12px</span>
</div>
<input type="range" class="slider-input" id="blur" min="0" max="100" value="12" />
</div>
<div class="slider-group">
<div class="slider-header">
<span class="slider-label">扩展半径</span>
<span class="slider-value" id="spreadValue">0px</span>
</div>
<input type="range" class="slider-input" id="spread" min="-50" max="50" value="0" />
</div>
<div class="slider-group">
<div class="slider-header">
<span class="slider-label">透明度</span>
<span class="slider-value" id="opacityValue">25%</span>
</div>
<input type="range" class="slider-input" id="opacity" min="0" max="100" value="25" />
</div>
<div class="color-inset-row">
<div class="color-picker-group">
<label for="input-----">阴影颜色</label>
<input type="color" id="shadowColor" value="#000000" aria-label="颜色选择器" />
</div>
<label class="inset-toggle" id="insetToggle">
<input type="checkbox" id="inset" />
<span>Inset</span>
</label>
</div>
</div>
</div>
</div>
<footer>
<p>
<a href="https://github.com/chicogong/html-tools" target="_blank" rel="noreferrer">
GitHub
</a>
· 纯前端工具 · 无服务器 ·
<a href="../../index.html">WebUtils</a>
</p>
</footer>
</div>
<script>
// Constants
const LS_KEY = "box_shadow_state_v1";
// Preset styles
const PRESETS = [
{
name: "柔和",
layers: [
{
offsetX: 0,
offsetY: 2,
blur: 8,
spread: 0,
color: "#000000",
opacity: 15,
inset: false
}
]
},
{
name: "悬浮",
layers: [
{
offsetX: 0,
offsetY: 8,
blur: 24,
spread: -4,
color: "#000000",
opacity: 30,
inset: false
}
]
},
{
name: "深层",
layers: [
{
offsetX: 0,
offsetY: 4,
blur: 6,
spread: -1,
color: "#000000",
opacity: 10,
inset: false
},
{
offsetX: 0,
offsetY: 10,
blur: 15,
spread: -3,
color: "#000000",
opacity: 10,
inset: false
},
{
offsetX: 0,
offsetY: 20,
blur: 25,
spread: -5,
color: "#000000",
opacity: 10,
inset: false
}
]
},
{
name: "锐利",
layers: [
{
offsetX: 4,
offsetY: 4,
blur: 0,
spread: 0,
color: "#000000",
opacity: 100,
inset: false
}
]
},
{