:root{color-scheme:light;--ink:#252c29;--muted:#6b746f;--green:#244b40;--line:#e1e6e2}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:#fcfdfc;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.8;letter-spacing:0}a{color:inherit;text-decoration:none}a:hover{color:var(--green)}a:focus-visible,summary:focus-visible{outline:2px solid #b66543;outline-offset:6px}.wrap{width:min(1080px,calc(100% - 64px));margin-inline:auto}.skip{position:fixed;top:-100px;left:20px;background:white;padding:8px 16px;z-index:5}.skip:focus{top:10px}.masthead{height:88px;display:flex;align-items:center;justify-content:space-between}.wordmark{font-family:"Songti SC",SimSun,serif;font-size:23px;font-weight:700;display:flex;align-items:center;gap:10px}.dot{width:7px;height:7px;border-radius:50%;background:#b66543}nav{display:flex;gap:32px;font-size:14px}.cover{height:360px;position:relative;isolation:isolate;background:#36514b;color:white}.cover>img{position:absolute;width:100%;height:100%;inset:0;object-fit:cover;object-position:center 47%;z-index:-2}.cover:after{content:"";position:absolute;inset:0;background:rgba(12,30,24,.31);z-index:-1}.cover-content{height:100%;display:flex;flex-direction:column;justify-content:center}.eyebrow{font-size:10px;font-weight:600;line-height:1.6;margin:0 0 15px}.cover .eyebrow{color:#f1f5f1}h1{font-family:"Songti SC",SimSun,serif;font-size:48px;line-height:1.35;font-weight:500;margin:0 0 19px}.intro{font-size:15px;line-height:1.9;margin:0;color:#f5f7f5}.body-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:88px;padding-top:55px;padding-bottom:72px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding-bottom:20px}.section-heading h2{font-size:18px;margin:0;font-weight:600}.section-heading>span{font-size:10px;color:var(--muted)}.entry{border-bottom:1px solid var(--line)}summary{list-style:none;cursor:pointer;padding:26px 0 23px}summary::-webkit-details-marker{display:none}.entry-meta{display:flex;justify-content:space-between;align-items:center;color:var(--green);font-size:11px;margin-bottom:9px}.entry-meta>span{color:#9baba3;font-family:Georgia,serif}.entry-title{display:block;font-family:"Songti SC",SimSun,serif;font-size:24px;line-height:1.6;font-weight:600;margin-bottom:8px}.excerpt{display:block;color:var(--muted);font-size:13px;line-height:1.9}.read{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--green);margin-top:16px}.read>span{font-size:16px}summary:hover .entry-title{color:var(--green)}details[open] .read>span{transform:rotate(90deg)}.entry-body{padding:0 0 24px;font-size:14px;line-height:2;color:#46554b;max-width:65ch}.entry-body p{margin:0 0 14px}aside{padding-top:6px;scroll-margin-top:24px}.about-rule{width:30px;border-top:3px solid #b66543;margin-bottom:23px}aside .eyebrow{font-size:9px;color:var(--muted);margin-bottom:12px}aside h2{font-family:"Songti SC",SimSun,serif;font-size:22px;font-weight:500;margin:0 0 18px}aside>p:not(.eyebrow){color:var(--muted);font-size:13px;line-height:2;margin:0 0 14px}.topics{margin-top:28px;border-top:1px solid var(--line);padding-top:20px}.topics h3{font-size:12px;font-weight:600;margin:0 0 8px}.topics p{font-size:12px;color:var(--muted);margin:0}blockquote{margin:32px 0 0;font-family:"Songti SC",SimSun,serif;font-size:19px;line-height:1.9;color:var(--green)}footer{border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:90px;font-size:11px;color:var(--muted)}
@media(max-width:720px){.wrap{width:calc(100% - 40px)}.masthead{height:72px}.wordmark{font-size:21px}nav{gap:22px;font-size:13px}.cover{height:300px}h1{font-size:38px}.cover .eyebrow{font-size:9px}.intro{font-size:13px}.body-grid{grid-template-columns:minmax(0,1fr);gap:44px;padding-top:32px;padding-bottom:40px}.section-heading{padding-bottom:16px}.section-heading>span{font-size:9px}.section-heading h2{font-size:17px}.entry-title{font-size:22px}aside{border-top:1px solid var(--line);padding-top:30px}aside>p{max-width:48ch}blockquote{margin-top:24px}footer{min-height:76px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}