:root{color-scheme:light;--bg:#f4f5f7;--paper:#fff;--ink:#282d35;--muted:#838994;--line:#e9ebef;--blue:#376bbb;--bar:76px}
*{box-sizing:border-box}html{scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",sans-serif;-webkit-tap-highlight-color:transparent}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.35}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #7fa9ef;outline-offset:4px}button{color:inherit}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.topbar{height:68px;position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;padding:0 36px;background:rgba(244,245,247,.97);border-bottom:1px solid var(--line)}.back{font-size:25px;color:#616974;display:flex;align-items:center;gap:10px}.back span{font-size:14px}.book-title{font-size:15px;font-weight:600}.book-title span{font-weight:400;color:var(--muted);padding-left:16px;font-size:13px}.quiet{border:1px solid #dfe3e9;background:white;border-radius:7px;padding:9px 14px;font-size:14px}.book-spine{position:fixed;top:190px;left:max(28px,calc(50% - 575px));display:flex;flex-direction:column;gap:8px;color:#a1a6ae;font:12px Georgia,serif;letter-spacing:2px}.book-spine i{width:28px;height:1px;background:#bdc3cc;margin:18px 0}.book-spine small{font:12px "Microsoft YaHei",sans-serif;letter-spacing:1px}.book{max-width:850px;min-height:calc(100svh - 160px);margin:28px auto 110px;padding:32px 72px 30px;background:var(--paper);border:1px solid #eceef1;box-shadow:0 4px 28px #1e2c4610;border-radius:3px}.running-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:26px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted);letter-spacing:1px}.text-button{border:0;padding:4px 0;background:none;color:var(--muted);font-size:12px}.message-heading{display:flex;align-items:center;justify-content:space-between;margin-top:38px;gap:16px}.role{border-radius:4px;padding:6px 12px;background:#edf3ff;color:#426aab;font-size:14px;font-weight:600;letter-spacing:.3px}.role.assistant{background:#eff2f4;color:#57626e}#message-number{font-size:12px;letter-spacing:1px;color:#9097a0}.timestamp{margin:14px 0 32px;font-size:12px;color:#969ba3}.prose{font-family:"Source Han Serif SC","Noto Serif CJK SC","Songti SC",SimSun,serif;font-size:19px;line-height:1.95;overflow-wrap:anywhere;outline:0}.prose p{margin:0 0 1.3em}.prose h1,.prose h2,.prose h3,.prose h4,.prose h5,.prose h6{line-height:1.5;margin:1.7em 0 .9em;font-weight:700}.prose h1{font-size:1.55em}.prose h2{font-size:1.35em}.prose h3{font-size:1.15em}.prose h4,.prose h5,.prose h6{font-size:1em}.prose> :first-child{margin-top:0}.prose strong{font-weight:700}.prose blockquote{margin:1.2em 0;padding:2px 0 2px 20px;border-left:3px solid #cbd6e7;color:#596577}.prose blockquote p:last-child{margin-bottom:0}.prose ul,.prose ol{padding-left:1.65em}.prose li{padding-left:.2em;margin:.35em 0}.prose pre{font-family:Consolas,"Cascadia Mono",monospace;font-size:14px;line-height:1.7;overflow:auto;white-space:pre;padding:20px;border-radius:6px;background:#f5f6f8;border:1px solid #eceef1;max-width:100%;tab-size:4}.prose code{font-family:Consolas,"Cascadia Mono",monospace;font-size:.82em;background:#f0f2f5;border-radius:3px;padding:.15em .3em}.prose pre code{font-size:inherit;background:none;padding:0;white-space:pre;overflow-wrap:normal}.table-scroll{max-width:100%;overflow-x:auto;margin:1.5em 0}.prose table{font-family:"Microsoft YaHei",sans-serif;font-size:14px;line-height:1.7;border-collapse:collapse;min-width:100%;width:max-content;max-width:1000px}.prose th,.prose td{text-align:left;border:1px solid #e1e5eb;padding:10px 14px;max-width:300px;min-width:90px}.prose th{background:#f5f6f8;font-weight:600}.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}.prose img{max-width:100%;height:auto}.page-end{display:flex;align-items:center;justify-content:center;gap:15px;margin-top:50px;color:#b1b6be;font-size:12px}.page-end span{width:28px;height:1px;background:var(--line)}.reader-bar{position:fixed;bottom:0;left:0;right:0;z-index:5;min-height:var(--bar);padding:9px max(24px,calc((100% - 730px)/2)) calc(9px + env(safe-area-inset-bottom));display:flex;align-items:center;justify-content:space-between;gap:16px;background:rgba(255,255,255,.98);border-top:1px solid var(--line)}.page-button{font-size:24px;background:none;border:0;white-space:nowrap;min-height:46px;padding:0 8px;display:flex;gap:12px;align-items:center}.page-button span{font-size:14px}.page-status{background:none;border:0;min-width:125px;padding:2px 10px;text-align:center;font-size:13px;color:#8a919c}.page-status strong{font-size:20px;font-family:Georgia,serif;color:#3d4857;font-weight:400}.page-status small{display:block;margin-top:4px;font-size:12px;color:#9aa0a9}.progress-track{height:2px;position:absolute;left:0;right:0;top:-1px;background:#e7ebf1}#progress-fill{height:100%;background:#7f9fcf;width:0}dialog{border:1px solid #e7eaf0;border-radius:14px;padding:0;width:min(580px,calc(100% - 28px));max-height:80svh;color:var(--ink);box-shadow:0 20px 80px #15213725}dialog::backdrop{background:#17203055}.dialog-head{padding:22px 26px 12px;display:flex;align-items:center;justify-content:space-between}.dialog-head h2{font-size:20px;font-weight:500;margin:0}.close{background:none;border:0;font-size:27px;min-width:42px;min-height:42px;color:#8b939d}.jump-form{display:flex;align-items:center;gap:10px;padding:12px 26px;font-size:14px}.jump-form input{width:90px;border:1px solid #d6dce5;border-radius:6px;padding:10px;font-size:16px}.primary{background:var(--blue);border:0;border-radius:6px;padding:11px 19px;color:white;margin-left:auto}.index-hint{font-size:12px;color:var(--muted);padding:0 26px 12px;margin:0}.page-index{overflow-y:auto;max-height:45svh;border-top:1px solid var(--line);padding:6px 12px 16px}.index-row{width:100%;display:grid;grid-template-columns:36px 70px 1fr;align-items:center;gap:8px;background:none;border:0;border-radius:5px;text-align:left;padding:13px 10px;font-size:13px}.index-row:hover{background:#f3f5f9}.index-row[aria-current=page]{background:#edf3ff;color:#376bbb}.index-row .excerpt{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.index-row .index-role{font-size:11px;color:#8b939e}.note-body{padding:0 26px 28px;font-size:15px;line-height:1.85}.note-body a{display:inline-block;margin-top:10px}.noscript{padding:20px;text-align:center}body:has(dialog[open]){overflow:hidden}
@media(max-width:1150px){.book-spine{display:none}}
@media(max-width:700px){:root{--bar:72px}.topbar{height:58px;padding:0 16px}.book-title{font-size:14px}.book-title span{display:none}.back span{display:none}.quiet{font-size:12px;padding:8px 10px}.book{margin:0 0 92px;padding:22px 25px 28px;border:0;box-shadow:none;min-height:calc(100svh - 150px);border-radius:0}.running-head{padding-bottom:17px}.message-heading{margin-top:28px}.timestamp{margin-bottom:27px}.prose{font-size:18px;line-height:1.95}.prose pre{font-size:13px;padding:15px}.reader-bar{padding-left:18px;padding-right:18px}.page-button{gap:6px;padding:0 4px}.page-button span{font-size:13px}.dialog-head{padding:15px 20px 8px}.jump-form{padding:12px 20px;gap:8px}.jump-form input{width:76px}.index-hint{padding-left:20px}.note-body{padding:0 20px 24px}}
@media(prefers-reduced-motion:no-preference){button{transition:background .15s,color .15s}}