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“`html

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

body { fontfamily: “Microsoft YaHei”, “PingFang SC”, sansserif; lineheight: 1.8; color: 333; background: f5f5f5; padding: 20px; }

.container { maxwidth: 900px; margin: 0 auto; background: fff; padding: 40px; borderradius: 8px; boxshadow: 0 2px 10px rgba(0,0,0,0.05); }

h1 { color: 1a1a1a; fontsize: 26px; marginbottom: 20px; paddingbottom: 15px; borderbottom: 3px solid f0b90b; }

h2 { color: 1a1a1a; fontsize: 22px; margin: 30px 0 15px; paddingleft: 12px; borderleft: 4px solid f0b90b; }

h3 { color: 333; fontsize: 18px; margin: 20px 0 10px; }

p { marginbottom: 15px; textindent: 2em; }

ol, ul { margin: 15px 0 15px 40px; }

ol li, ul li { marginbottom: 10px; }

.tipbox { background: fffbe6; border: 1px solid ffe58f; borderleft: 4px solid f0b90b; padding: 15px 20px; margin: 20px 0; borderradius: 4px; }

.tipbox strong { color: d48806; }

.warningbox { background: fff1f0; border: 1px solid ffa39e; borderleft: 4px solid f5222d; padding: 15px 20px; margin: 20px 0; borderradius: 4px; }

.warningbox strong { color: cf1322; }

.stepnum { display: inlineblock; background: f0b90b; color: fff; width: 28px; height: 28px; lineheight: 28px; textalign: center; borderradius: 50%; fontweight: bold; marginright: 8px; }

.highlight { color: f0b90b; fontweight: bold; }

.toc { background: fafafa; padding: 20px 30px; borderradius: 6px; marginbottom: 30px; }

.toc h3 { margintop: 0; }

.toc ul { liststyle: none; marginleft: 0; }

.toc a { color: f0b90b; textdecoration: none; }