/* A personal reference website, not a sequence of presentation slides. */
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*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font:1rem/1.85 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}a{color:var(--blue);text-underline-offset:4px}a:hover{color:#133f51}a:focus-visible{outline:2px solid var(--blue);outline-offset:5px}h1,h2,h3,p{margin-top:0}p{margin-bottom:18px}h1,h2,h3{line-height:1.55}h2{font-size:1.25rem;font-weight:600}h3{font-size:1.0625rem;font-weight:600}.wrap{width:min(1060px,calc(100% - 64px));margin:auto}.skip{position:absolute;top:-100px}.skip:focus{top:8px;background:white;padding:10px;z-index:10}
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