:root{--paper: #f3ebd9;--paper-2: #f9f3e6;--ink: #1f1810;--ink-soft: #574d3d;--ink-faint: #8a7d62;--line: #ddccab;--seal: #ab382c;--seal-deep: #8a2a22;--seal-tint: #f0dcd6;--on-seal: #fff;--prog: var(--seal);--shadow: 14px 18px 40px -24px rgba(45, 32, 20, .55);--radius: 14px}[data-theme=green]{--paper: #d6e7df;--paper-2: #e2efe9;--ink: #22302b;--ink-soft: #4c5d56;--ink-faint: #82938c;--line: #bcd3c9;--seal: #b23b3b;--seal-deep: #8f2c2c;--seal-tint: #e6dcc9;--shadow: 14px 18px 40px -24px rgba(40, 50, 28, .5)}[data-theme=night]{--paper: #101014;--paper-2: #1b1b20;--ink: #e6e7ea;--ink-soft: #9fa0a6;--ink-faint: #6c6d73;--line: #2b2c32;--seal: #d8a657;--seal-deep: #b98a3f;--seal-tint: #2a2418;--on-seal: #241a06;--shadow: 14px 18px 44px -22px rgba(0, 0, 0, .7)}[data-theme=inkteal]{--paper: #0e1f1b;--paper-2: #17312b;--ink: #eaece1;--ink-soft: #a4b2a9;--ink-faint: #74837b;--line: #294238;--seal: #e88b6e;--seal-deep: #cf7155;--seal-tint: #33211c;--on-seal: #2a1410;--shadow: 14px 18px 44px -22px rgba(0, 0, 0, .7);--prog: #67c189}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;min-height:100dvh;padding:14px;color:var(--ink);font-family:"Noto Serif TC",Songti TC,"Source Han Serif TC",Georgia,serif;font-feature-settings:"palt";line-height:1.6;-webkit-font-smoothing:antialiased;background-color:#4f2817;background-image:repeating-linear-gradient(91deg,rgba(0,0,0,.14) 0 1px,transparent 1px 6px,rgba(0,0,0,.07) 6px 8px,transparent 8px 15px),repeating-linear-gradient(89deg,rgba(255,226,190,.05) 0 2px,transparent 2px 27px),radial-gradient(120% 80% at 50% 0%,rgba(255,225,190,.06),transparent 60%),linear-gradient(118deg,#6f3c25,#532a18 55%,#3c1d11);background-attachment:fixed}[data-theme=green] body{background-color:#3a4a2c;background-image:repeating-linear-gradient(91deg,rgba(0,0,0,.12) 0 1px,transparent 1px 6px,rgba(0,0,0,.06) 6px 8px,transparent 8px 15px),linear-gradient(118deg,#4d6238,#38492a 55%,#28341d);background-attachment:fixed}[data-theme=night] 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50%);border-radius:5px;box-shadow:0 0 0 1px #00000024,0 26px 60px -18px #0000008c}#app:before{content:"";position:fixed;top:14px;bottom:14px;left:14px;right:14px;max-width:760px;margin:0 auto;z-index:-1;pointer-events:none;border-radius:5px;background-image:url(/paper.jpg);background-size:cover;background-position:center;mix-blend-mode:multiply;opacity:.55}[data-theme=night] #app:before,[data-theme=inkteal] #app:before{background-image:radial-gradient(130% 90% at 50% 0%,color-mix(in srgb,var(--paper) 86%,#fff) 0%,transparent 55%),radial-gradient(120% 80% at 50% 100%,color-mix(in srgb,var(--paper) 92%,#000) 0%,transparent 50%);mix-blend-mode:normal;opacity:1}h1{font-weight:900;font-size:clamp(28px,7vw,40px);letter-spacing:.04em;margin:8px 0 4px;position:relative;display:inline-block}h1:after{content:"";position:absolute;left:2px;right:2px;bottom:-6px;height:4px;background:var(--seal);border-radius:2px}h2{font-weight:700;font-size:clamp(20px,5vw,26px);margin:6px 0 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[data-toc=close]{margin-left:auto}.toc-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:12px}.toc-tools[hidden]{display:none}.toc-tools input{min-height:42px;max-width:96px}.toc-tools button{min-height:42px;padding:0 14px;font-size:14px}.toc-info{padding:8px 16px;overflow:auto;flex:1}.toc-inforow{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:15px}.toc-infok{flex:0 0 56px;color:var(--ink);opacity:.55}.toc-infov{flex:1;min-width:0;word-break:break-all}.toc-list{flex:1;overflow:auto;padding:4px 0}.toc-row{padding:13px 16px;border-bottom:1px solid var(--line);cursor:pointer;font-size:15px}.toc-row:hover{background:var(--paper-2)}.toc-current{color:var(--seal);font-weight:700;border-left:4px solid var(--seal);padding-left:12px}.reader-section{padding-bottom:8px}.reader-section+.reader-section{margin-top:14px}.reader-section-title{text-align:center;font-size:clamp(18px,4.8vw,23px);font-weight:700;letter-spacing:.08em;margin:12px 0 24px;padding-top:6px;color:var(--ink)}.reader-section-title:before{content:"";display:block;width:30px;height:3px;border-radius:2px;background:var(--prog);margin:0 auto 16px}.pop-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:27;background:#0000000a}.title-pop{position:fixed;top:52px;left:14px;right:14px;max-width:760px;margin-inline:auto;z-index:28;display:flex;gap:8px;padding:10px;border-radius:12px;background:color-mix(in srgb,var(--paper) 92%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--line);box-shadow:0 14px 34px -12px #00000080;animation:dropdown .16s ease both}.title-pop button{flex:1;min-height:46px;font-size:15px}