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我来为您生成这篇教程型HTML文章页面。

“`html

{ margin: 0; padding: 0; boxsizing: borderbox; }

body {

fontfamily: “Microsoft YaHei”, “PingFang SC”, sansserif;

lineheight: 1.8;

color: 333;

background: f5f7fa;

padding: 20px;

}

.container {

maxwidth: 900px;

margin: 0 auto;

background: fff;

padding: 40px;

borderradius: 8px;

boxshadow: 0 2px 12px rgba(0,0,0,0.08);

}

h1 {

fontsize: 28px;

color: c0392b;

textalign: center;

marginbottom: 30px;

paddingbottom: 20px;

borderbottom: 3px solid c0392b;

}

h2 {

fontsize: 22px;

color: 2c3e50;

margin: 30px 0 15px;

paddingleft: 12px;

borderleft: 4px solid e74c3c;

}

h3 {

fontsize: 18px;

color: 34495e;

margin: 20px 0 10px;

}

p {

marginbottom: 15px;

textindent: 2em;

}

.highlight {

background: lineargradient(120deg, ffeaa7 0%, ffeaa7 100%);

backgroundrepeat: norepeat;

backgroundsize: 100% 40%;

backgroundposition: 0 85%;

padding: 0 2px;

}

.tipbox {

background: fff3cd;

borderleft: 4px solid ffc107;

padding: 15px 20px;

margin: 20px 0;

borderradius: 4px;

}

.warningbox {

background: f8d7da;

borderleft: 4px solid dc3545;

padding: 15px 20px;

margin: 20px 0;

borderradius: 4px;

}

.successbox {

background: d4edda;

borderleft: 4px solid 28a745;

padding: 15px 20px;

margin: 20px 0;

borderradius: 4px;

}

ol, ul {

margin: 15px 0 15px 30px;

}

ol li, ul li {

marginbottom: 8px;

}

.stepnum {

display: inlineblock;

background: e74c3c;

color: fff;

width: 28px;

height: 28px;

lineheight: 28px;

textalign: center;

borderradius: 50%;

marginright: 8px;

fontweight: bold;

}

.keywordbox {

background: lineargradient(135deg, 667eea 0%, 764ba2 100%);

color: fff;

padding: 20px;

borderradius: 8px;

textalign: center;

margin: 25px 0;

fontsize: 20px;

fontweight: bold;

letterspacing: 1px;

}

.keywordbox a {

color: ffeb3b;

textdecoration: none;

borderbottom: 2px dashed ffeb3b;

paddingbottom: 2px;

}

code {

background: f1f3f5;

padding: 2px 8px;

borderradius: 3px;

fontfamily: Consolas, Monaco, monospace;

color: e83e8c;

}