:root{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#20352b;background:#f3f6f4;font-size:16px;line-height:1.5;color-scheme:light}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:0;min-height:46px;padding:11px 16px;border-radius:12px;background:#e5eee8;color:#244b36}button:disabled{opacity:.5;cursor:wait}button:focus-visible,a:focus-visible{outline:3px solid #598b6e;outline-offset:3px}input,select{width:100%;padding:13px;border:1px solid #d5dfd8;border-radius:12px;background:#fff;color:#20352b;font-size:16px;min-width:0}h1,h2,h3,p{margin:0}h1{font-size:24px;font-weight:650}h2{font-size:23px}header{position:sticky;top:0;z-index:5;background:#ffffffed;backdrop-filter:blur(12px);border-bottom:1px solid #e4ebe6}.bar{max-width:720px;margin:auto;padding:16px 20px;display:flex;align-items:center;gap:12px;justify-content:space-between}.container{max-width:720px;margin:auto;padding:24px 20px 48px}.login{max-width:440px;margin:8vh auto 0;padding:24px}.brand{width:56px;height:56px;background:#245943;color:white;border-radius:18px;display:grid;place-items:center;font-size:26px;margin-bottom:28px}.sub{color:#687a6d;font-size:14px;margin:10px 0 22px}label{display:block;margin:18px 0 8px}label>span{display:block;margin-bottom:8px}.row{display:flex;gap:8px;align-items:center}.row input{flex:1}.check{display:flex;align-items:center;gap:9px;font-size:15px;min-height:44px}.check input{width:20px;height:20px;flex:none}.primary{background:#245943;color:#fff;width:100%;margin-top:18px}.quiet{background:transparent;padding:8px 10px}.error{color:#a63830;margin-top:12px;min-height:24px;font-size:14px}.doc{display:flex;align-items:center;gap:16px;width:100%;text-align:left;background:white;padding:20px;margin-top:12px;border:1px solid #e1e8e3;border-radius:16px;box-shadow:0 3px 12px #20352b04}.doc-icon{background:#ecf3ee;color:#42674f;padding:10px 7px;border-radius:9px;font-size:12px;flex:none}.doc-text{flex:1;min-width:0}.doc strong{font-size:18px;font-weight:550;display:block;overflow-wrap:anywhere}.meta{font-size:13px;color:#758278;margin-top:8px}.date{color:#6a7a6e;font-size:14px;margin:26px 0 8px}.tools{display:grid;grid-template-columns:1fr 125px;gap:10px}.empty{text-align:center;padding:50px 10px;color:#687a6d}.stack{display:grid;gap:14px}.reading-title{font-size:15px;font-weight:550;flex:1;overflow-wrap:anywhere}.reader{max-width:100%;padding:12px 8px 90px;overflow:auto}.pdf-page{background:white;margin:0 auto 14px;box-shadow:0 2px 8px #0001;min-height:120px;position:relative}.pdf-page canvas{display:block;width:100%;height:100%}.page-label{text-align:center;color:#718077;font-size:12px;padding:8px}.reader-tools{position:fixed;bottom:0;left:0;right:0;padding:8px 12px calc(8px + env(safe-area-inset-bottom));z-index:6;background:#ffffffed;border-top:1px solid #dce4de;display:flex;justify-content:center;gap:8px;align-items:center;flex-wrap:wrap}.reader-tools input{width:62px;padding:9px}.reader-tools button{padding:9px 13px}.share-name{margin-bottom:24px;overflow-wrap:anywhere}.download{display:block;text-align:center;background:#245943;color:white;border-radius:12px;padding:13px;text-decoration:none}.loading{padding:48px 20px;text-align:center}.status{color:#54705d;font-size:14px;min-height:22px;margin:12px 0}.back-top{display:block;margin:24px auto} @media(min-width:760px){.login{margin-top:10vh}.container{padding-top:32px}.doc:hover{border-color:#9db7a5}.reader{padding-inline:30px}}@media(max-width:360px){.bar,.container{padding-left:14px;padding-right:14px}.tools{grid-template-columns:1fr}.reading-title{font-size:14px}}
/* Flowing mobile document reading */
.article-shell{max-width:800px;margin:0 auto;padding:12px 24px 110px;background:#fff;min-height:calc(100dvh - 80px)}
.markdown{font-size:20px;line-height:1.95;overflow-wrap:anywhere;color:#25352c;letter-spacing:.02em}
.markdown h1{font-size:1.5em;line-height:1.45;margin:.6em 0 1em;font-weight:700}.markdown h2{font-size:1.25em;line-height:1.55;margin:1.8em 0 .8em;padding-bottom:.45em;border-bottom:2px solid #e7eee9}.markdown h3{font-size:1.1em;line-height:1.65;margin:1.5em 0 .7em;font-weight:650}.markdown h4,.markdown h5,.markdown h6{font-size:1em;margin:1.3em 0 .6em}.markdown p{margin:.85em 0}.markdown strong{font-weight:700;color:#163b27}.markdown ul,.markdown ol{padding-left:1.4em;margin:.9em 0}.markdown li{padding-left:.15em;margin:.65em 0}.markdown li p{margin:.4em 0}.markdown blockquote{border-left:4px solid #779b83;background:#f2f6f3;margin:1.2em 0;padding:.4em 1em;color:#45614d}.markdown hr{border:0;border-top:1px solid #dfe7e1;margin:1.8em 0}.markdown a{color:#24633e;text-underline-offset:4px}.markdown img{max-width:100%;height:auto}.markdown pre{overflow:auto;padding:16px;background:#f3f5f3;border-radius:8px;line-height:1.6}.markdown code{font-size:.9em;white-space:break-spaces}.markdown pre code{white-space:pre}.markdown table{width:100%;border-collapse:collapse;font-size:.95em;line-height:1.75}.markdown th,.markdown td{text-align:left;vertical-align:top;border:1px solid #dce5df;padding:12px}.markdown th{background:#eef4ef}.table-wrap{overflow-x:auto;margin:1.2em 0}#contents{margin:12px 0 26px;padding:14px 16px;background:#f2f6f3;border-radius:12px}#contents summary{cursor:pointer;min-height:32px;color:#365f44;font-size:17px}#contents nav{display:grid;margin-top:12px;gap:4px}.toc-link{text-align:left;overflow-wrap:anywhere;background:transparent;font-size:16px;line-height:1.6}.level-h3{padding-left:26px}.markdown [id]{scroll-margin-top:96px}.reader-tools{font-size:16px;gap:12px}.reader-tools #progress{font-size:14px;color:#687a6d}.reader-tools button:disabled{cursor:default}.article-shell>.status:empty,.article-shell>.error:empty{display:none}
@media(max-width:600px){.article-shell{padding:12px 20px 110px}.markdown table,.markdown tbody,.markdown tr,.markdown td{display:block;width:100%}.markdown thead{display:none}.markdown tr{margin-bottom:18px;border:1px solid #dae5dd;border-radius:12px;overflow:hidden}.markdown td{border:0;border-bottom:1px solid #e5ece7;padding:12px 14px;min-width:0}.markdown td:last-child{border:0}.markdown td::before{content:attr(data-label);display:block;font-size:.8em;color:#587160;font-weight:600;margin-bottom:4px}.markdown td:empty{display:none}.table-wrap{overflow:visible}.markdown blockquote{padding:.3em .75em}.bar{gap:8px}.bar .quiet{white-space:nowrap}.reading-title{font-size:16px;line-height:1.45}}