:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;background:#eef2eb;color:#193e2e;font-family:system-ui,"Microsoft YaHei",sans-serif;line-height:1.8}main{max-width:760px;margin:auto;padding:32px 24px 80px;background:#fffdf5;min-height:100vh}h1{font-size:28px}h2{font-size:19px;margin-top:28px}a{color:#176646;text-underline-offset:3px}nav{display:flex;gap:24px;flex-wrap:wrap}.date{color:#667b6e;font-size:14px}li{margin:8px 0}footer{border-top:1px solid #bdcabc;margin-top:36px;padding-top:16px}@media(max-width:600px){main{padding:20px 18px 60px}}