:root{--paper:#f5f2e9;--surface:#fbf9f3;--ink:#292d26;--muted:#686e60;--line:#dedfd2;--accent:#4a6042;--soft:#e9eddd;--lime:#d9e5b0;--reader-size:22px;--reader-leading:2;--reading-width:44rem;--reader-font:"Songti SC","Noto Serif CJK SC","Source Han Serif SC","STSong","SimSun",serif;--ui-font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color-scheme:light}
:root[data-theme=light]{--paper:#fff;--surface:#f7f8f5;--ink:#242b25;--muted:#65705f;--line:#e2e6de;--soft:#edf2e7;color-scheme:light}
:root[data-theme=dark]{--paper:#191e1a;--surface:#222922;--ink:#dbe0d4;--muted:#9aa493;--line:#394237;--accent:#c2d79a;--soft:#2e392a;--lime:#c9dca5;color-scheme:dark}
*{box-sizing:border-box}html{scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.65 var(--ui-font);-webkit-font-smoothing:antialiased}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{color:inherit;cursor:pointer}button{border:0;background:none}a{color:inherit;text-decoration:none}button:disabled{opacity:.35;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:5px}input[type=search]::-webkit-search-cancel-button{cursor:pointer}svg{width:20px;height:20px;display:block;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}[hidden]{display:none!important}main:focus{outline:none}::selection{background:var(--lime);color:#222a20}.skip-link{position:fixed;top:10px;left:15px;transform:translateY(-180%);z-index:100;background:var(--ink);color:var(--paper);padding:10px 20px;border-radius:8px}.skip-link:focus{transform:none}.site-header{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;height:90px;padding:0 max(28px,calc((100vw - 1280px)/2));background:var(--paper);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-weight:650;line-height:1.3;letter-spacing:.12em}.brand small{display:block;font-size:9px;font-weight:500;letter-spacing:.17em;margin-top:5px;color:var(--muted)}.brand-mark{display:grid;place-items:center;background:var(--ink);color:var(--paper);width:38px;height:40px;font-family:var(--reader-font);font-size:23px}.site-header nav{display:flex;align-items:center;gap:22px}.nav-button,.icon-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-width:42px;min-height:44px}.nav-button{font-size:13px}.nav-button:hover,.icon-button:hover{color:var(--accent)}.icon-button{border-radius:10px;flex-shrink:0}.icon-button:hover{background:var(--soft)}.eyebrow{display:block;color:var(--muted);font-size:10px;letter-spacing:.2em;font-weight:600;line-height:1.5}.home-shell{max-width:1180px;margin:auto;padding:70px 32px 0}.hero{display:grid;grid-template-columns:minmax(260px,385px) 1fr;gap:clamp(48px,7vw,116px);align-items:center}.cover-stage{position:relative;padding:15px 0 22px 12px}.cover-stage:before{content:"";position:absolute;left:35px;top:39px;right:-9px;bottom:4px;background:var(--line);opacity:.6}.book-cover{position:relative;aspect-ratio:3/4;background:#2d3b2e;color:#ecf0d9;padding:30px 35px 25px;overflow:hidden;box-shadow:8px 15px 30px #1823151a}.cover-small{position:relative;z-index:1;font:10px/1.5 var(--ui-font);letter-spacing:.22em;display:block}.cover-title{position:relative;z-index:1;font:600 clamp(63px,7.7vw,100px)/1.18 var(--reader-font);letter-spacing:.1em;margin:47px 0 25px}.cover-title span{display:block}.cover-rule{position:absolute;top:0;bottom:0;left:12px;border-left:1px solid #dce6ba44}.cover-orbit{position:absolute;left:8%;top:51%;width:100%;height:90%;border:1px solid #c5d6a24d;border-radius:50%;transform:rotate(-24deg)}.cover-orbit:before,.cover-orbit:after{content:"";position:absolute;border:1px solid #c5d6a23d;border-radius:50%;inset:28px}.cover-orbit:after{inset:62px}.cover-grid{position:absolute;bottom:0;right:0;width:55%;height:34%;background:repeating-linear-gradient(90deg,transparent 0 17px,#c0d29d24 18px 19px),repeating-linear-gradient(0deg,transparent 0 17px,#c0d29d24 18px 19px);clip-path:polygon(0 100%,0 48%,20% 48%,20% 24%,42% 24%,42% 0,67% 0,67% 34%,100% 34%,100% 100%)}.cover-bottom{position:absolute;left:35px;bottom:28px;z-index:1;font-size:10px;letter-spacing:.18em}.edition-badge{display:inline-flex;align-items:center;gap:8px;color:var(--accent);background:var(--soft);font-size:11px;letter-spacing:.1em;padding:7px 12px;border-radius:4px}.edition-badge:before{content:"";width:5px;height:5px;border-radius:100%;background:var(--accent)}.hero-copy h1{font:600 clamp(42px,4.5vw,62px)/1.2 var(--reader-font);letter-spacing:.12em;margin:25px 0 10px}.english-title{color:var(--muted);font-size:13px;letter-spacing:.22em;margin:0 0 27px}.hero-lead{font:400 clamp(19px,1.8vw,24px)/1.8 var(--reader-font);margin:0 0 20px}.hero-description{max-width:455px;color:var(--muted);font-size:14px;line-height:2;margin:0}.book-meta{display:flex;gap:0;align-items:center;list-style:none;padding:0;margin:27px 0;color:var(--muted);font-size:12px}.book-meta li+li:before{content:"/";display:inline-block;margin:0 15px;color:var(--line)}.hero-actions{display:flex;align-items:center;gap:24px;margin-top:31px}.primary-button{display:inline-flex;align-items:center;justify-content:space-between;gap:35px;min-height:50px;padding:13px 23px;background:var(--ink);color:var(--paper);font-size:13px;border-radius:4px}.primary-button:hover{background:var(--accent);color:var(--paper)}.secondary-button{display:inline-flex;align-items:center;gap:10px;min-height:44px;color:var(--accent);font-size:13px}.hero-footnote{margin:19px 0 0;color:var(--muted);font-size:11px}.resume-card{margin-top:30px;max-width:455px;padding:18px 20px;border:1px solid var(--line);border-radius:5px;text-align:left;width:100%;display:grid;grid-template-columns:1fr auto;gap:10px}.resume-card:hover{background:var(--surface)}.resume-card .eyebrow{font-size:9px}.resume-card strong{display:block;font-weight:500;font-size:14px;margin:4px 0}.resume-card .resume-percent{font-size:12px;color:var(--muted)}.resume-card svg{align-self:center}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:20px}.section-heading h2{font:500 25px/1.5 var(--reader-font);margin:8px 0 0;letter-spacing:.08em}.section-heading p{font-size:12px;color:var(--muted);margin:0}.chapter-preview{margin-top:83px;padding-top:34px;border-top:1px solid var(--line)}.chapter-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 28px}.chapter-card{display:flex;align-items:center;gap:17px;min-height:81px;border-bottom:1px solid var(--line);padding:14px 0;text-align:left;width:100%}.chapter-card:hover .chapter-name{color:var(--accent);transform:translateX(3px)}.chapter-number{font:14px/1 var(--ui-font);color:var(--muted);letter-spacing:.05em;font-variant-numeric:tabular-nums;min-width:24px}.chapter-text{flex:1;min-width:0}.chapter-name{display:block;font-size:14px;transition:transform .15s;overflow-wrap:anywhere}.chapter-caption{display:block;font-size:10px;color:var(--muted);margin-top:5px}.chapter-card .reading-dot{height:5px;width:5px;background:var(--accent);border-radius:100%}.site-footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:60px;padding:24px 0 32px;font-size:10px;letter-spacing:.08em;color:var(--muted)}.contents-page{max-width:1080px;margin:0 auto;padding:55px 32px 0}.contents-page h1{font:500 40px/1.3 var(--reader-font);letter-spacing:.1em;margin:15px 0}.contents-page .search-field{max-width:420px;margin:30px 0 14px}.contents-page .chapter-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 45px}.contents-topline{display:flex;justify-content:space-between;gap:20px}.back-link{display:inline-flex;gap:6px;align-items:center;color:var(--muted);font-size:12px}.reading-layout{max-width:1240px;display:grid;grid-template-columns:195px minmax(0,1fr);gap:55px;margin:0 auto;padding:42px 30px 120px}.reading-sidebar{position:sticky;top:125px;align-self:start;max-height:calc(100dvh - 170px);overflow:auto;padding-right:12px}.sidebar-book{font:500 19px var(--reader-font);letter-spacing:.1em;margin:6px 0 25px}.side-chapter{display:flex;gap:12px;padding:10px 0;color:var(--muted);font-size:12px;line-height:1.8;text-align:left;width:100%}.side-chapter span:first-child{font-size:10px;line-height:2.1;opacity:.7;min-width:19px;font-variant-numeric:tabular-nums}.side-chapter[aria-current=page]{color:var(--accent);font-weight:600}.sidebar-all{border-top:1px solid var(--line);margin-top:15px;padding-top:20px;width:100%;display:flex;align-items:center;gap:12px;font-size:12px;color:var(--accent)}.sidebar-footer{font-size:10px;line-height:1.8;color:var(--muted);margin-top:26px}.reading-main{width:100%;max-width:var(--reading-width);margin:0 auto}.chapter-heading{position:relative;padding:13px 0 38px;border-bottom:1px solid var(--line);margin-bottom:40px}.chapter-heading .eyebrow{margin-bottom:17px}.chapter-heading h1{font:500 clamp(31px,3.3vw,45px)/1.5 var(--reader-font);letter-spacing:.09em;margin:0 0 19px;overflow-wrap:anywhere}.chapter-heading .chapter-meta{font-size:11px;color:var(--muted);letter-spacing:.04em}.chapter-heading .chapter-meta span+span:before{content:"·";padding:0 12px}.prose{font:400 var(--reader-size)/var(--reader-leading) var(--reader-font);letter-spacing:.035em;overflow-wrap:break-word;line-break:strict}.prose p{margin:0 0 1.22em;text-indent:2em;scroll-margin-top:112px}.prose strong{font-weight:650}.prose hr{width:55px;margin:2.6em auto;border:0;border-top:1px solid var(--line)}.prose .target-paragraph{background:var(--soft);border-radius:4px;transition:background 2.5s}.chapter-end{display:flex;align-items:center;gap:16px;color:var(--muted);font-size:10px;letter-spacing:.2em;margin:50px 0}.chapter-end:before,.chapter-end:after{content:"";height:1px;background:var(--line);flex:1}.chapter-pagination{display:grid;grid-template-columns:1fr 1fr;gap:16px}.page-link{border:1px solid var(--line);border-radius:5px;display:flex;align-items:center;gap:15px;padding:18px;min-height:83px;text-align:left;background:var(--surface)}.page-link.next{flex-direction:row-reverse;text-align:right}.page-link .caption{font-size:10px;color:var(--muted);display:block;margin-bottom:5px}.page-link strong{font-size:13px;font-weight:500}.page-link:hover{border-color:var(--accent)}.book-end{text-align:center;padding:20px 0 35px}.book-end h2{font:500 26px var(--reader-font);margin-bottom:27px}.reader-dock{position:fixed;bottom:0;left:0;right:0;z-index:22;background:var(--paper);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.dock-inner{max-width:900px;display:flex;align-items:center;gap:20px;margin:auto;height:67px;padding:0 24px}.dock-progress{display:grid;grid-template-columns:1fr auto;flex:1;gap:6px 12px;font-size:10px;min-width:0;color:var(--muted)}#dock-title{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}#dock-percent{font-variant-numeric:tabular-nums}.progress-track{height:2px;grid-column:1/-1;background:var(--line);overflow:hidden}.progress-track i{display:block;width:0;height:100%;background:var(--accent);transition:width .1s}.focus-mode .site-header,.focus-mode .reading-sidebar{display:none}.focus-mode .reading-layout{display:block;padding-top:60px}.focus-mode .reading-main{margin:auto}.focus-exit{position:fixed;top:17px;right:20px;z-index:30;display:flex;align-items:center;gap:8px;font-size:11px;border:1px solid var(--line);padding:9px 12px;border-radius:30px;background:var(--paper)}.focus-exit svg{width:15px;height:15px}.panel-dialog{color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:27px 30px;max-height:calc(100dvh - 60px);width:min(620px,calc(100vw - 32px));box-shadow:0 30px 100px #0003}.panel-dialog::backdrop{background:#10181070;backdrop-filter:blur(4px)}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:24px}.panel-heading h2{font:500 25px/1.4 var(--reader-font);letter-spacing:.05em;margin:8px 0 0}.panel-heading .eyebrow{font-size:8px}.panel-heading>.icon-button{align-self:flex-start;margin:-8px -10px 0 0}.tabs{display:flex;gap:26px;border-bottom:1px solid var(--line);margin-bottom:23px}.tab{padding:0 0 12px;font-size:13px;border-bottom:2px solid transparent;margin-bottom:-1px;color:var(--muted)}.tab span{font-size:10px;margin-left:5px}.tab.is-active{border-bottom-color:var(--accent);color:var(--accent)}.search-field{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:5px;padding:9px 12px;background:var(--surface);color:var(--muted)}.search-field input{border:0;background:transparent;color:var(--ink);font-size:13px;min-width:0;width:100%;min-height:25px;outline:none}.search-field:focus-within{border-color:var(--accent);outline:1px solid var(--accent)}.search-field svg{width:17px;height:17px;flex-shrink:0}.search-field.large{padding:12px 15px}.drawer-list{margin-top:13px;max-height:55dvh;overflow:auto;padding-right:5px}.drawer-list .chapter-card{min-height:65px}.drawer-list .chapter-caption{font-size:9px}.drawer-list .chapter-name{font-size:13px}.empty-state{text-align:center;padding:38px 15px;color:var(--muted);font-size:13px;line-height:1.9}.empty-state svg{width:26px;height:26px;margin:0 auto 15px}.bookmark-row{display:flex;gap:10px;align-items:center;border-bottom:1px solid var(--line);padding:10px 0}.bookmark-open{display:block;text-align:left;flex:1;min-width:0;padding:5px 0}.bookmark-open strong{display:block;font-weight:500;font-size:13px}.bookmark-open p{font:13px/1.8 var(--reader-font);color:var(--muted);margin:5px 0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.bookmark-open time{font-size:9px;color:var(--muted)}.search-summary{font-size:11px;margin:14px 0 5px;color:var(--muted)}.search-results{max-height:55dvh;overflow:auto}.search-result{display:block;width:100%;text-align:left;border-bottom:1px solid var(--line);padding:17px 0}.search-result small{display:block;color:var(--accent);font-size:10px;margin-bottom:8px}.search-result p{margin:0;color:var(--muted);font-size:13px;line-height:1.9}.search-result mark{background:var(--lime);color:#273020;padding:1px 2px}.settings-dialog{max-width:430px}.settings-dialog fieldset{padding:0;margin:0 0 23px;border:0;min-width:0}.settings-dialog legend{font-size:12px;width:100%;margin-bottom:12px}.settings-dialog output{float:right;color:var(--muted);font-size:11px}.theme-options{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}.theme-choice{font-size:10px;color:var(--muted);padding:0}.theme-choice i{display:block;border:1px solid var(--line);border-radius:5px;height:41px;margin-bottom:6px}.theme-choice.paper i{background:#f5f2e9}.theme-choice.light i{background:#fff}.theme-choice.dark i{background:#222b23}.theme-choice.system i{background:linear-gradient(110deg,#f5f2e9 50%,#222b23 50%)}.theme-choice[aria-pressed=true] i{outline:2px solid var(--accent);outline-offset:2px}.theme-choice[aria-pressed=true]{color:var(--accent)}input[type=range]{width:100%;accent-color:var(--accent);height:22px}.range-row{display:flex;align-items:center;gap:14px}.adjust-button{font-size:14px;min-height:38px;min-width:36px;border:1px solid var(--line);border-radius:4px}.type-preview{font:var(--reader-size)/var(--reader-leading) var(--reader-font);text-align:center;margin:15px 0 0}.segmented{display:flex;border:1px solid var(--line);border-radius:5px;padding:3px;gap:4px}.segmented button{flex:1;font-size:11px;padding:9px 7px;border-radius:3px}.segmented button[aria-pressed=true]{background:var(--soft);color:var(--accent)}.settings-bottom{border-top:1px solid var(--line);padding-top:10px}.settings-bottom p{font-size:10px;color:var(--muted);margin-bottom:8px}.text-button{font-size:11px;color:var(--accent);padding:4px 0}.toast{position:fixed;left:50%;bottom:95px;transform:translate(-50%,12px);opacity:0;pointer-events:none;z-index:60;padding:10px 18px;border-radius:7px;background:var(--ink);color:var(--paper);font-size:12px;transition:opacity .15s,transform .15s;white-space:nowrap}.toast.is-visible{opacity:1;transform:translate(-50%,0)}.storage-notice{position:fixed;bottom:78px;left:18px;right:18px;max-width:440px;padding:9px 14px;font-size:11px;background:var(--soft);border:1px solid var(--line);border-radius:5px;z-index:25}.loading-state{min-height:65vh;display:flex;flex-direction:column;justify-content:center;align-items:center;color:var(--muted);font-size:12px;letter-spacing:.1em}.loading-mark{font:34px var(--reader-font);color:var(--accent)}.error-state{max-width:520px;margin:80px auto;padding:0 25px;text-align:center}.error-state h1{font:28px var(--reader-font)}.error-state p{font-size:13px;color:var(--muted);line-height:1.9}.error-state button{margin:20px auto}.noscript-message{margin:35px auto;padding:20px;max-width:600px;text-align:center}.noscript-message a{text-decoration:underline}
@media(min-width:1400px){.reading-layout{gap:80px}.reading-main{transform:translateX(-10px)}}
@media(max-width:1000px){.hero{grid-template-columns:minmax(240px,320px) 1fr;gap:45px}.home-shell{padding-top:45px}.cover-title{font-size:76px;margin-top:35px}.book-cover{padding-left:29px}.cover-bottom{left:29px}.hero-copy h1{font-size:43px}.hero-description{font-size:13px}.reading-layout{grid-template-columns:155px minmax(0,1fr);gap:30px}.chapter-heading h1{font-size:34px}.chapter-grid{gap:0 21px}.site-header nav{gap:15px}}
@media(max-width:760px){.site-header{height:72px;padding:0 20px}.site-header nav{gap:7px}.nav-button{font-size:12px;gap:5px}.brand{font-size:14px;gap:9px}.brand-mark{height:34px;width:32px;font-size:21px}.brand small{font-size:8px;letter-spacing:.1em}.home-shell{padding:33px 24px 0}.hero{grid-template-columns:1fr;gap:29px}.cover-stage{width:210px;justify-self:center;padding:6px 0 12px 6px}.cover-stage:before{left:21px;top:20px;right:-6px;bottom:2px}.book-cover{padding:20px 23px}.cover-title{font-size:58px;margin:26px 0 10px}.cover-small{font-size:7px}.cover-bottom{left:23px;bottom:19px;font-size:7px}.cover-rule{left:8px}.hero-copy{text-align:center}.hero-copy h1{font-size:39px;margin-top:20px;letter-spacing:.15em}.english-title{font-size:10px;margin-bottom:20px}.hero-lead{font-size:20px;line-height:1.85;margin-bottom:14px}.hero-description{max-width:430px;margin:auto;font-size:13px;line-height:2}.book-meta,.hero-actions{justify-content:center}.book-meta{margin:23px 0}.hero-actions{margin-top:23px;gap:20px}.hero-footnote{font-size:10px}.resume-card{text-align:left;margin:22px auto 0}.chapter-preview{margin-top:44px;padding-top:27px}.section-heading h2{font-size:23px}.section-heading p{font-size:10px}.chapter-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}.chapter-card{gap:10px;min-height:77px}.chapter-name{font-size:13px}.chapter-number{font-size:12px;min-width:19px}.site-footer{margin-top:35px;padding-bottom:25px;flex-direction:column;gap:6px}.reading-layout{display:block;padding:27px 24px 108px}.reading-sidebar{display:none}.chapter-heading{padding:10px 0 25px;margin-bottom:31px}.chapter-heading .eyebrow{font-size:9px;margin-bottom:16px}.chapter-heading h1{font-size:32px;letter-spacing:.06em}.chapter-heading .chapter-meta{font-size:10px}.prose{letter-spacing:.025em}.prose p{margin-bottom:1.15em}.chapter-end{margin:34px 0}.dock-inner{height:62px;padding:0 14px;gap:10px}.dock-progress{font-size:9px;gap:5px 8px}.reader-dock .icon-button{min-width:39px}.chapter-pagination{gap:10px}.page-link{padding:14px 11px;gap:8px;min-height:79px}.page-link svg{width:17px;height:17px}.page-link strong{font-size:12px}.page-link .caption{font-size:9px}.contents-page{padding:32px 24px 0}.contents-page h1{font-size:33px}.contents-topline{align-items:flex-start}.contents-page .chapter-grid{gap:0 24px}.panel-dialog{padding:23px 21px;max-height:calc(100dvh - 28px)}.panel-heading h2{font-size:23px}.contents-dialog{width:calc(100vw - 24px)}.drawer-list,.search-results{max-height:57dvh}.theme-options{gap:8px}.toast{max-width:calc(100vw - 35px);font-size:11px}.focus-mode .reading-layout{padding-top:48px}}
@media(max-width:420px){.site-header{padding:0 15px}.site-header nav{gap:2px}.nav-button{min-width:37px}.nav-button svg{width:17px;height:17px}.brand{letter-spacing:.08em}.home-shell{padding-left:22px;padding-right:22px}.hero-actions{gap:17px}.primary-button{padding:12px 20px;gap:27px}.chapter-grid,.contents-page .chapter-grid{grid-template-columns:1fr}.chapter-preview .chapter-card{min-height:67px}.chapter-preview .chapter-card:nth-child(n+5){display:none}.reading-layout{padding-left:20px;padding-right:20px}.chapter-heading h1{font-size:29px}.dock-inner{gap:4px}.panel-heading .eyebrow{font-size:7px}.chapter-heading .chapter-meta span+span:before{padding:0 8px}.book-meta li+li:before{margin:0 11px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.site-header,.reading-sidebar,.reader-dock,.chapter-pagination,.focus-exit,dialog,.toast{display:none!important}.reading-layout{display:block;padding:0}.reading-main{max-width:none}.prose{font-size:12pt;line-height:1.8}body{background:#fff;color:#000}}

/* Keep paragraph geometry stable while modal dialogs hide the page scrollbar. */
html{scrollbar-gutter:stable}
