:root{--paper:#f7f4ed;--surface:#fcfaf5;--ink:#302f28;--muted:#79786d;--accent:#a44732;--accent-soft:#f0e3d9;--olive:#747b58;--line:#ddd9ce;--serif:"Noto Serif SC","Songti SC",serif;--sans:"Inter","PingFang SC","Microsoft YaHei",sans-serif;--read-size:18px;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:108px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select{font:inherit;color:inherit}button,a,input,summary,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}button{background:none;border:0}a,button{touch-action:manipulation}a:hover{color:var(--accent)}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:5px}::selection{background:#d9ba9e77}svg{width:22px;height:22px;flex-shrink:0}img{max-width:100%}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3,h4{font-family:var(--serif);font-weight:600}h1{line-height:1.45}p{color:var(--muted)}.wrap{max-width:1240px;margin:auto;padding:0 40px}.header{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.header-inner{height:88px;max-width:1400px;margin:auto;padding:0 42px;display:flex;align-items:center;gap:32px}.brand{display:flex;gap:12px;align-items:center;flex-shrink:0}.brand-icon{background:var(--accent);color:#fff9e9;width:42px;height:42px;border-radius:3px;font-family:var(--serif);font-size:16px;letter-spacing:1px;display:grid;place-items:center;border:3px double #ba6c56}.brand-name{font-family:var(--serif);font-size:21px;letter-spacing:2px;line-height:1.4}.brand-name small{display:block;font-family:var(--sans);font-size:8px;letter-spacing:2.1px;color:var(--muted);margin-top:4px}.header nav{display:flex;gap:27px;margin:auto}.header nav a{font-size:13px;white-space:nowrap;position:relative;padding:32px 0}.header nav a.active{color:var(--accent)}.header nav a.active:after{content:'';position:absolute;bottom:21px;height:2px;width:16px;left:calc(50% - 8px);background:var(--accent)}.header nav small{font-size:9px;color:var(--muted);margin-left:4px}.header-actions{display:flex;align-items:center}.search-open{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.search-open svg{width:17px}.search-open kbd{margin-left:10px;border:1px solid var(--line);padding:0 5px;border-radius:3px;font-size:10px}.icon-button{min-width:36px;min-height:36px;display:grid;place-items:center;border-radius:5px;font-size:23px}.icon-button:hover{background:var(--accent-soft)}.menu-toggle{display:none}.skip{position:fixed;left:20px;top:-60px;background:var(--accent);padding:10px 20px;color:white;z-index:200}.skip:focus{top:10px}.eyebrow{display:flex;align-items:center;gap:10px;font-size:11px;letter-spacing:2px;color:var(--accent);text-transform:uppercase}.eyebrow:before{content:'';width:22px;height:1px;background:currentColor}.hero{display:grid;grid-template-columns:1.08fr 1fr;gap:20px;align-items:center;padding-top:68px;padding-bottom:56px;position:relative}.hero h1{font-size:49px;font-weight:500;letter-spacing:2px;margin:27px 0 22px;line-height:1.55}.hero h1 em{color:var(--accent);font-style:normal;position:relative}.hero h1 em:after{content:'';position:absolute;bottom:-6px;left:0;width:100%;height:7px;border-top:1px solid #c39075;border-radius:50%}.hero-lead{font-size:14px;max-width:445px;line-height:2.1;color:#787568}.hero-actions{display:flex;align-items:center;gap:24px;margin:30px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:24px;border:1px solid var(--accent);background:var(--accent);color:#fffbf3;min-height:44px;padding:11px 21px;border-radius:4px;font-size:13px;transition:background .2s,transform .2s}.btn:hover{background:#8b3b29;color:white;transform:translateY(-2px)}.btn.outline{background:transparent;border-color:var(--line);color:var(--ink)}.btn.outline:hover{border-color:var(--accent);color:var(--accent)}.text-link{font-size:12px;display:inline-flex;align-items:center;gap:15px}.hero-note{font-size:11px;color:#8b877a;display:flex;gap:9px;align-items:center}.hero-note:before{content:'';width:5px;height:5px;border-radius:50%;background:var(--olive)}.hero-art{position:relative;margin:0 -10px 0 0}.hero-art img{width:100%;display:block}.hero-art figcaption{text-align:center;font-size:10px;color:#99907e;letter-spacing:1px;margin-top:0}.semester{position:absolute;right:40px;top:25px;font-size:9px;letter-spacing:1.6px;color:#9b9383}.stats-band{display:flex;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0;align-items:center}.stats-quote{font-family:var(--serif);font-size:16px;color:#777061;flex:1;letter-spacing:1px}.stat{padding:0 35px;display:flex;gap:11px;align-items:baseline;border-left:1px solid var(--line)}.stat b{font-family:Georgia,serif;font-size:28px;font-weight:400;color:#555443}.stat span{font-size:11px;color:var(--muted)}.section{padding:58px 0 0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:25px}.section-heading h2{font-size:25px;font-weight:500;letter-spacing:1px;margin:7px 0 6px}.section-heading p{font-size:12px;margin:0}.overline{font-size:9px;color:var(--muted);letter-spacing:2px;font-family:var(--sans)}.paths{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.path-card{padding:26px 27px 23px;background:#efe9de;border:1px solid #e5ded0;border-radius:6px;position:relative;transition:transform .2s,border-color .2s}.path-card:hover{transform:translateY(-4px);border-color:#b5a58a;color:inherit}.path-card:nth-child(2){background:#edf0e6;border-color:#dce0d1}.path-card:nth-child(3){background:#f1e5dc;border-color:#e7d8ca}.path-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.path-top svg{width:26px;height:26px;stroke:#8a6b46}.path-card:nth-child(2) svg{stroke:var(--olive)}.path-card:nth-child(3) svg{stroke:var(--accent)}.pill{border:1px solid #cfc7b7;color:#82775f;font-size:9px;border-radius:20px;padding:2px 9px;letter-spacing:.8px}.path-card h3{font-size:21px;margin:0 0 12px;font-weight:500}.path-card p{font-size:12px;line-height:1.9;margin:0 0 23px;max-width:280px}.path-bottom{border-top:1px solid #d8cfbe;display:flex;justify-content:space-between;padding-top:14px;font-size:11px;color:#685c49}.curriculum{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.module{border-top:2px solid #a6977c;padding-top:22px}.module:nth-child(2){border-color:var(--olive)}.module:nth-child(3){border-color:var(--accent)}.module-head{display:flex;align-items:center;gap:14px;margin-bottom:20px}.module-index{font:36px Georgia,serif;color:#c0b599}.module:nth-child(2) .module-index{color:#a8af97}.module:nth-child(3) .module-index{color:#c69681}.module-head h3{font-size:18px;margin:0 0 2px;font-weight:500}.module-head p{font-size:10px;margin:0}.chapter-row{display:flex;align-items:center;padding:16px 0;border-top:1px solid var(--line);gap:13px;font-size:12px}.chapter-row .num{font-size:10px;color:#928571;font-family:monospace}.chapter-row .arrow{margin-left:auto;color:#a39b89}.chapter-row .done-dot{color:var(--olive)}.case-preview{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:6px;overflow:hidden}.case-mini{padding:25px;border-right:1px solid var(--line);transition:background .2s}.case-mini:last-child{border:0}.case-mini:hover{background:var(--surface)}.company-mark{height:40px;width:40px;border:1px solid #c9bfae;display:grid;place-items:center;font-family:var(--serif);font-size:18px;letter-spacing:-1px;color:#836748;border-radius:50%;margin-bottom:19px}.case-mini h3{font-size:17px;margin:0 0 7px}.case-mini p{font-size:11px;margin:0 0 22px}.case-mini small{font-size:9px;color:var(--muted)}.case-mini .text-link{float:right}.closing{margin:60px 0 0;padding:32px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.closing p{font-family:var(--serif);font-size:18px;letter-spacing:2px;color:#5e5b4e;margin:0}.closing span{font-size:11px;color:var(--muted)}.footer{max-width:1320px;margin:65px auto 0;border-top:1px solid var(--line);padding:30px 40px 35px;display:flex;justify-content:space-between;gap:25px;font-size:10px;color:var(--muted)}.footer p{margin:9px 0}.footer-brand{font-family:var(--serif);font-size:15px;letter-spacing:1px;color:#514e43}.footer-brand span{font-family:Georgia,serif;font-size:12px;font-style:italic;letter-spacing:0;margin-left:10px;color:#9b927f}.footer-right{text-align:right}.footer-right a{border-bottom:1px dotted #9e947f;padding-bottom:3px}.page-intro{padding:54px 0 32px;max-width:850px}.page-intro h1{font-size:38px;font-weight:500;margin:14px 0}.page-intro p{line-height:1.9;max-width:650px}.page-intro .eyebrow{font-size:10px}.page-intro .badge{margin-left:12px}.badge{font-family:var(--sans);display:inline-block;font-size:10px;color:var(--muted);border:1px solid var(--line);border-radius:3px;padding:3px 9px;vertical-align:middle;letter-spacing:0}.reading-status{border:1px solid var(--line);border-radius:6px;padding:21px 24px;display:flex;gap:20px;justify-content:space-between;align-items:center;background:var(--surface);margin:5px 0 36px}.reading-status p{margin:4px 0 0;font-size:11px}.reading-status strong{font-weight:500}.progress-track{height:3px;background:var(--line);border-radius:4px;overflow:hidden}.progress-track span{height:100%;display:block;background:var(--olive)}.progress-summary{width:220px}.progress-summary span{font-size:11px;color:var(--muted)}.progress-summary .progress-track{margin-top:8px}.full-module{display:grid;grid-template-columns:240px 1fr;gap:50px;margin:35px 0 45px;border-top:1px solid var(--line);padding-top:32px}.full-module aside .module-index{font-size:46px}.full-module aside h2{font-size:24px;margin:12px 0}.full-module aside p{font-size:12px;line-height:1.9}.lesson-item{padding:23px 0;display:flex;gap:21px;border-bottom:1px solid var(--line);align-items:center}.lesson-item:first-child{padding-top:0}.lesson-num{font-family:Georgia,serif;font-size:26px;color:#a99c85;width:32px;flex-shrink:0}.lesson-item h3{font-size:18px;margin:0 0 7px}.lesson-item p{font-size:12px;margin:0}.lesson-item .lesson-time{margin-left:auto;font-size:10px;color:var(--muted);white-space:nowrap}.filter-bar{display:flex;gap:9px;align-items:center;flex-wrap:wrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0;margin:4px 0 28px}.filter-chip{padding:7px 14px;border:1px solid transparent;border-radius:30px;font-size:12px;color:var(--muted)}.filter-chip:hover{color:var(--accent)}.filter-chip.active{background:var(--ink);color:var(--paper)}.filter-search{margin-left:auto;position:relative}.filter-search input{background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:8px 12px;width:205px;font-size:12px}.result-count{font-size:11px;color:var(--muted);margin:0 0 16px}.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.case-card{padding:25px;border:1px solid var(--line);border-radius:5px;background:var(--surface);transition:border-color .2s,transform .2s}.case-card:hover{border-color:var(--accent);transform:translateY(-3px);color:inherit}.case-card-top{display:flex;justify-content:space-between;margin-bottom:15px}.case-card .company-mark{margin:0}.case-number{font-family:Georgia,serif;font-size:26px;color:#bbae98}.case-card h2{font-size:21px;margin:18px 0 5px}.case-card .subtitle{font-family:var(--serif);font-size:15px;color:#7b705b;margin:0 0 13px}.case-card .case-code{font:10px var(--sans);letter-spacing:.5px;color:var(--muted)}.case-card-footer{display:flex;justify-content:space-between;font-size:10px;border-top:1px solid var(--line);padding-top:15px;margin-top:24px;color:var(--muted)}.case-card-footer b{font-weight:400;color:var(--accent)}.inline-note{padding:18px 22px;background:var(--accent-soft);font-size:12px;border-radius:5px;color:#7b6550;margin:26px 0}.empty{text-align:center;color:var(--muted);padding:35px 20px;font-size:13px}.loading{text-align:center;padding:120px;color:var(--muted)}
/* Reader */
.reader-progress{position:fixed;top:88px;left:0;right:0;height:2px;z-index:35;background:transparent}.reader-progress span{height:100%;display:block;background:var(--accent);width:0}.reader-layout{display:grid;grid-template-columns:225px minmax(0,760px) 180px;gap:38px;max-width:1400px;margin:auto;padding:38px 35px}.reader-sidebar,.reader-toc{position:sticky;top:122px;max-height:calc(100vh - 150px);overflow:auto;align-self:start;scrollbar-width:thin}.reader-sidebar .back{font-size:11px;color:var(--muted);display:block;margin-bottom:26px}.reader-sidebar .side-label{font-size:10px;color:#9a8c74;letter-spacing:1px;margin:20px 0 8px}.reader-sidebar a.side-chapter{display:flex;gap:9px;padding:9px 10px;font-size:11px;border-radius:3px;color:#7b776b;align-items:baseline;margin:2px 0}.side-chapter .num{font:10px monospace}.reader-sidebar a.side-chapter.active{background:var(--accent-soft);color:var(--accent)}.reader-main{min-width:0}.reader-breadcrumb{font-size:11px;color:var(--muted);margin:0 0 24px}.reader-title{font-size:33px;line-height:1.5;font-weight:500;margin:14px 0}.reader-subtitle{font-family:var(--serif);font-size:22px;color:#8f6e52;margin-top:-2px}.reader-meta{display:flex;gap:14px;color:var(--muted);font-size:10px;flex-wrap:wrap}.reader-toolbar{margin:25px 0 30px;padding:12px 0;display:flex;align-items:center;justify-content:space-between;gap:8px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.reader-toolbar button{font-size:11px;border:1px solid var(--line);border-radius:4px;padding:5px 10px;min-height:32px}.reader-toolbar button:hover,.reader-toolbar button[aria-pressed=true]{background:var(--accent-soft);border-color:#c7a98b}.font-tools{display:flex;gap:6px;align-items:center}.reader-toolbar .tool-label{font-size:10px;color:var(--muted);margin-right:5px}.reader-toolbar .toolbar-right{display:flex;gap:6px}.reader-toc h3{font-family:var(--sans);font-size:11px;font-weight:500;padding-bottom:14px;border-bottom:1px solid var(--line);margin:0 0 12px}.reader-toc a{display:block;font-size:10px;color:var(--muted);line-height:1.8;padding:7px 0 7px 11px;border-left:1px solid var(--line)}.reader-toc a.sub{font-size:9px;padding-left:20px}.reader-toc a:hover,.reader-toc a.active{border-left-color:var(--accent);color:var(--accent)}.reader-toc .progress-label{font-size:10px;color:var(--muted);margin:22px 0 8px}.mobile-toc{display:none}.prose{font-family:var(--serif);font-size:var(--read-size);line-height:2.1;overflow-wrap:anywhere;color:var(--ink)}.prose p{color:inherit;margin:0 0 1.3em}.prose h2{font-size:1.42em;line-height:1.6;margin:2.4em 0 1em;border-bottom:1px solid var(--line);padding-bottom:.6em;color:var(--ink);scroll-margin-top:112px}.prose h3{font-size:1.12em;line-height:1.7;color:var(--accent);margin:1.9em 0 .8em;scroll-margin-top:112px}.prose h4{margin:1.5em 0 .7em;font-size:1.05em}.prose strong{font-weight:700}.prose a{color:var(--accent);text-decoration:underline;text-decoration-color:#c7a989;text-underline-offset:3px}.prose ul,.prose ol{padding-left:1.5em;margin:1em 0 1.6em}.prose li{padding-left:.2em;margin:.45em 0}.prose blockquote{background:color-mix(in srgb,var(--accent-soft) 55%,var(--paper));margin:1.5em 0;padding:1.2em 1.45em;border-left:3px solid #ba8c6a;font-size:.92em;border-radius:0 4px 4px 0}.prose blockquote p:last-child{margin:0}.prose figure{margin:1.7em 0}.prose img{display:block;max-width:100%;height:auto;margin:24px auto;cursor:zoom-in;background:#fff;border:1px solid var(--line);border-radius:3px}.prose figcaption{font-family:var(--sans);font-size:11px;text-align:center;color:var(--muted)}.prose .table-scroll{overflow:auto;max-width:100%;margin:1.5em 0;scrollbar-width:thin;border:1px solid var(--line);border-radius:4px}.prose table{border-collapse:collapse;width:100%;font-family:var(--sans);font-size:12px;line-height:1.8;min-width:480px}.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);min-width:85px;vertical-align:top}.prose th{background:#eae4d8;color:#594d3d;font-weight:500}.prose td{background:var(--surface)}.prose tr:nth-child(even) td{background:var(--paper)}.prose td p:last-child{margin:0}.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}.prose .math.display{display:block;max-width:100%;overflow-x:auto;font-size:.93em;padding:4px 0}.katex-display{margin:1em 0}.katex{font-size:1.1em}.prose .katex-error{color:inherit!important}.reader-end{margin-top:55px;border-top:1px solid var(--line);padding-top:30px}.reader-end-note{text-align:center;color:var(--muted);font-size:11px;margin-bottom:20px}.complete-button{display:flex;margin:20px auto 35px}.next-prev{display:flex;justify-content:space-between;gap:20px}.next-prev a{max-width:48%;font-size:13px}.next-prev small{display:block;color:var(--muted);font-size:10px;margin-bottom:6px}.reader-layout.focus{grid-template-columns:minmax(0,800px);justify-content:center}.reader-layout.focus .reader-sidebar,.reader-layout.focus .reader-toc{display:none}.reader-layout.focus .mobile-toc{display:block}.saved-list{margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}.saved-list h4{font:11px var(--sans);color:var(--muted)}.saved-list a{display:block;font-size:11px;margin:9px 0;color:var(--accent)}
/* Project and course information */
.project-hero{display:grid;grid-template-columns:1fr 320px;gap:60px;align-items:center;padding-bottom:32px}.project-hero .page-intro{padding-bottom:0}.project-summary{margin-top:55px;border:1px solid #d9c9b5;background:#eee5d7;border-radius:5px;padding:24px 28px}.project-summary h3{font-size:19px;font-weight:500;margin-bottom:15px}.project-summary dl{margin:0;font-size:12px}.project-summary dl div{display:flex;justify-content:space-between;padding:9px 0;border-top:1px solid #d9c9b5}.project-summary dd{margin:0;color:#6e604c}.project-layout{display:grid;grid-template-columns:1fr 300px;gap:45px}.project-content h2{font-size:23px;margin:30px 0 20px}.project-step{display:grid;grid-template-columns:40px 1fr;gap:20px;padding:25px 0;border-top:1px solid var(--line)}.step-number{font-family:Georgia,serif;font-size:25px;color:#b5a181}.project-step h3{font-size:17px;margin:0 0 8px}.project-step p{font-size:13px;line-height:1.95;margin:0}.project-sidebar{padding-top:30px;align-self:start;position:sticky;top:105px}.checklist{padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:5px}.checklist h3{font-size:18px;margin-bottom:8px}.checklist .check-note{font-size:11px}.checklist label{display:flex;gap:10px;padding:13px 0;border-bottom:1px solid var(--line);font-size:12px;cursor:pointer}.checklist input{accent-color:var(--olive);width:16px;height:16px;margin:2px 0;flex-shrink:0}.checklist .progress-track{margin:15px 0 7px}.checklist .check-count{font-size:10px;color:var(--muted)}.rubric{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:24px 0}.rubric div{border:1px solid var(--line);background:var(--surface);padding:20px 15px;border-radius:4px}.rubric strong{font:28px Georgia,serif;color:var(--accent);display:block;margin-bottom:12px}.rubric b{font-size:12px;font-weight:500}.rubric p{font-size:11px;line-height:1.8;margin:8px 0 0}.source-details{margin:20px 0;border:1px solid var(--line);border-radius:4px;background:var(--surface)}.source-details summary{padding:16px 20px;font-size:12px;cursor:pointer}.source-details .source-body{padding:0 20px 20px;font-size:14px;overflow:auto}.source-body table{width:100%;border-collapse:collapse;min-width:500px}.source-body td{border:1px solid var(--line);padding:8px}.about-grid{display:grid;grid-template-columns:1fr 320px;gap:60px}.about-copy h2{font-size:24px;margin:38px 0 18px}.about-copy p{font-size:14px;line-height:2}.info-card{align-self:start;margin-top:38px;border:1px solid var(--line);background:var(--surface);padding:25px}.info-card h3{font-size:18px}.info-card dl{margin:0}.info-card dl div{display:flex;justify-content:space-between;font-size:12px;padding:13px 0;border-top:1px solid var(--line)}.info-card dt{color:var(--muted)}.info-card dd{margin:0}.grade-row{display:flex;gap:7px;margin:20px 0}.grade-row span{display:block;min-width:65px;padding:12px 8px;background:#e6e0d4;font-size:11px;text-align:center}.grade-row span:last-child{background:#a44732;color:#fff}.grade-row b{display:block;font:22px Georgia,serif;margin-bottom:8px}.faq details{padding:17px 0;border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-size:14px}.faq details p{font-size:13px;margin:15px 0 0}.back-top{display:block;margin-top:22px;font-size:11px;color:var(--muted)}
/* Dialogs */
dialog{color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:0;max-width:calc(100vw - 32px)}dialog::backdrop{background:#29261c70;backdrop-filter:blur(5px)}#search-dialog{width:650px;margin:13vh auto auto;box-shadow:0 20px 100px #2d271b33}.search-top{display:flex;justify-content:space-between;align-items:center;padding:13px 22px;font-size:12px;color:var(--muted)}.search-field{display:flex;align-items:center;gap:12px;padding:0 24px 20px;border-bottom:1px solid var(--line)}.search-field input{border:0;outline:0;background:transparent;width:100%;font-size:17px}.search-field svg{color:var(--accent)}#search-results{overflow:auto;max-height:55vh;padding:8px 16px}.search-result{display:block;padding:14px 12px;border-radius:4px}.search-result:hover{background:var(--accent-soft)}.search-result strong{font-family:var(--serif);font-size:16px;font-weight:500}.search-result small{font-size:10px;color:var(--accent);margin-left:12px}.search-result p{font-size:12px;margin:5px 0 0;line-height:1.8}.search-result mark{background:#e8cba7;color:#704122}.search-bottom{display:flex;justify-content:space-between;padding:12px 24px;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}#image-dialog{width:min(1200px,96vw);max-height:95vh;text-align:center;padding:42px 20px 16px;background:#fff}#image-dialog .icon-button{position:absolute;top:5px;right:8px;color:#333}#image-dialog img{max-height:78vh;max-width:100%;object-fit:contain}#image-dialog p{font-size:12px;margin:10px 0 0;color:#6e685a}#toast{position:fixed;bottom:30px;left:50%;transform:translate(-50%,15px);opacity:0;pointer-events:none;background:var(--ink);color:var(--paper);padding:11px 23px;font-size:12px;border-radius:5px;z-index:100;transition:.2s}#toast.show{opacity:1;transform:translate(-50%,0)}body[data-theme=dark]{--paper:#252720;--surface:#2c2e27;--ink:#e0dfd1;--muted:#aaa99b;--accent:#dc9c7d;--accent-soft:#403a2d;--line:#44463b;color-scheme:dark}body[data-theme=dark] .prose th{background:#464438;color:#ece0c7}body[data-theme=dark] .reader-title{color:var(--ink)}
@media(min-width:1500px){.hero{padding-top:82px;padding-bottom:66px}.hero h1{font-size:54px}}
@media(max-width:1150px){.header-inner{padding:0 25px;gap:22px}.header nav{gap:18px}.search-open kbd{display:none}.wrap{padding:0 30px}.hero{padding-top:64px;padding-bottom:48px}.hero h1{font-size:40px}.hero-lead{font-size:13px}.stats-quote{font-size:14px}.stat{padding:0 23px}.reader-layout{grid-template-columns:190px minmax(0,1fr);gap:30px;padding:32px 28px}.reader-toc{display:none}.mobile-toc{display:block;margin:0 0 24px;border-bottom:1px solid var(--line);padding-bottom:15px}.mobile-toc summary{font-size:12px;cursor:pointer}.mobile-toc a{display:block;font-size:12px;padding:7px 0;color:var(--muted)}.project-layout{gap:30px;grid-template-columns:1fr 265px}.case-mini{padding:22px}.path-card{padding:23px}.about-grid{gap:35px}.project-hero{gap:35px}}
@media(max-width:850px){.header-inner{height:74px}.header nav{display:none;position:absolute;top:74px;left:0;right:0;padding:15px 24px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;gap:0}.header nav.open{display:flex}.header nav a{padding:12px 0}.header nav a.active:after{display:none}.header-actions{margin-left:auto;gap:12px}.menu-toggle{display:grid}.brand-name{font-size:18px}.brand-icon{width:36px;height:36px;font-size:14px}.brand-name small{font-size:7px}.search-open span{display:none}.hero{grid-template-columns:1.15fr 1fr;gap:0;padding-top:62px;padding-bottom:40px}.hero h1{font-size:33px;letter-spacing:1px}.hero-art{margin:0 -20px 0 -15px}.eyebrow{font-size:9px;letter-spacing:1px}.hero-lead{font-size:12px}.hero-actions{gap:16px}.btn{padding:10px 15px;gap:15px;font-size:12px}.hero-note{font-size:10px}.stats-quote{display:none}.stats-band{justify-content:space-evenly;padding:18px 0}.stat{padding:0 25px}.stat:first-of-type{border:0}.paths{gap:13px}.path-card{padding:19px}.path-card h3{font-size:18px}.path-card p{font-size:11px}.path-top{margin-bottom:22px}.curriculum{gap:20px}.module-head{gap:10px}.module-head h3{font-size:16px}.module-index{font-size:30px}.chapter-row{font-size:11px;gap:8px}.case-preview{grid-template-columns:repeat(2,1fr)}.case-mini:nth-child(2){border-right:0}.case-mini:nth-child(-n+2){border-bottom:1px solid var(--line)}.case-grid{grid-template-columns:repeat(2,1fr)}.filter-search{margin-left:0}.full-module{grid-template-columns:180px 1fr;gap:25px}.full-module aside h2{font-size:21px}.reader-progress{top:74px}.reader-layout{display:block;padding:28px 30px;max-width:830px}.reader-sidebar{display:none}.reader-title{font-size:29px}.reader-toc{display:none}.prose{font-size:var(--read-size);line-height:2}.project-hero{grid-template-columns:1fr 255px;gap:20px}.project-summary{padding:22px}.project-layout{grid-template-columns:1fr}.project-sidebar{position:static;padding:0}.project-summary{margin-top:25px}.about-grid{grid-template-columns:1fr 260px;gap:28px}.grade-row{flex-wrap:wrap}.grade-row span{flex:1!important}.hero-art figcaption{font-size:8px}.closing p{font-size:16px}.closing span{font-size:10px}.reader-layout.focus{display:block}.footer{margin-top:45px}.project-sidebar{max-width:none}.checklist{margin-top:20px}}
@media(max-width:580px){.wrap{padding:0 22px}.header-inner{padding:0 20px}.hero{display:block;padding-top:46px;padding-bottom:35px}.semester{top:18px;right:23px;font-size:8px}.hero h1{font-size:39px;line-height:1.55;margin-top:24px;letter-spacing:1px}.hero-lead{font-size:13px;max-width:100%;line-height:2}.hero-art{margin:-7px auto 0;max-width:340px}.hero-art figcaption{margin-top:-7px}.hero-actions{margin:25px 0 18px}.hero-note{font-size:10px}.hero-art img{margin-top:10px}.stats-band{padding:18px 0}.stat{display:block;padding:0 22px;text-align:center}.stat b{font-size:27px;display:block}.stat span{font-size:10px}.section{padding-top:39px}.section-heading{align-items:start;gap:13px;margin-bottom:20px}.section-heading h2{font-size:23px}.section-heading .text-link{font-size:10px;gap:5px;white-space:nowrap;padding-top:23px}.section-heading p{font-size:11px}.paths{grid-template-columns:1fr;gap:14px}.path-card{padding:22px 24px}.path-top{margin-bottom:12px}.path-card h3{font-size:21px}.path-card p{font-size:12px;max-width:100%;margin-bottom:18px}.curriculum{grid-template-columns:1fr;gap:30px}.module{padding-top:18px}.module-head h3{font-size:20px}.module-head p{font-size:11px}.module-head{gap:17px}.chapter-row{font-size:13px;padding:14px 0}.module-index{font-size:35px}.case-mini{padding:22px 18px}.case-mini h3{font-size:17px}.closing{display:block;margin-top:40px;padding:24px 0 0}.closing p{font-size:15px;letter-spacing:1px;margin-bottom:10px}.footer{display:block;padding:25px 22px;font-size:10px;margin-top:36px}.footer-right{text-align:left;margin-top:23px}.page-intro{padding:36px 0 23px}.page-intro h1{font-size:31px}.page-intro p{font-size:13px}.reading-status{flex-wrap:wrap;padding:20px;gap:15px}.reading-status .progress-summary{width:100%;order:3}.full-module{grid-template-columns:1fr;gap:20px;padding-top:25px;margin:25px 0 35px}.full-module aside{display:grid;grid-template-columns:45px 1fr;column-gap:13px}.full-module aside h2{font-size:22px;margin:2px 0 8px}.full-module aside p{grid-column:2;margin:0}.full-module aside .module-index{font-size:36px;grid-row:1/3}.lesson-item{gap:15px;padding:19px 0;flex-wrap:wrap}.lesson-item h3{font-size:17px}.lesson-item p{font-size:11px;max-width:260px}.lesson-item .lesson-time{display:none}.lesson-num{font-size:24px}.filter-bar{gap:5px;padding:13px 0}.filter-chip{font-size:11px;padding:7px 11px}.filter-search{width:100%;margin-top:8px}.filter-search input{width:100%;font-size:12px}.case-grid{grid-template-columns:1fr;gap:14px}.case-card{padding:23px}.case-card-top{float:right;gap:20px}.case-card .company-mark{width:35px;height:35px;font-size:15px}.case-card .case-number{font-size:23px}.case-card h2{margin-top:8px}.case-card .subtitle{font-size:15px}.case-card-footer{clear:both}.reader-layout{padding:24px 21px}.reader-title{font-size:27px}.reader-toolbar{flex-wrap:wrap;gap:12px}.reader-toolbar button{font-size:11px;padding:5px 9px}.tool-label{display:none}.reader-subtitle{font-size:19px}.prose{line-height:2.05;--read-size:17px}.prose h2{font-size:1.28em}.prose blockquote{padding:1em;font-size:.94em}.prose table{font-size:12px;min-width:480px}.reader-meta{gap:10px}.project-hero{display:block;padding-bottom:10px}.project-summary{margin-top:5px;padding:20px 23px}.project-summary dl{display:flex;gap:20px;flex-wrap:wrap}.project-summary dl div{gap:12px}.project-summary h3{font-size:18px;margin-bottom:6px}.project-step{gap:13px;grid-template-columns:28px 1fr}.project-step h3{font-size:17px}.project-step p{font-size:12px}.rubric{grid-template-columns:repeat(2,1fr)}.about-grid{display:flex;flex-direction:column;gap:0}.info-card{order:-1;margin-top:0}.about-copy h2{font-size:22px;margin-top:30px}.about-copy p{font-size:13px}.grade-row{gap:6px}.grade-row span{min-width:55px;padding:10px 5px;font-size:10px}.grade-row b{font-size:20px}.search-field input{font-size:14px}.search-bottom{font-size:9px;padding:12px 17px}.search-bottom span{display:none}#toast{width:max-content;max-width:90vw;text-align:center}.page-intro .badge{margin-left:0;display:table;margin-top:12px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
@media print{body>*{display:none!important}body:after{display:block;content:'《公司金融学》课程内部学习材料。请在课程网站在线阅读，未经许可请勿复制或传播。';font-size:16px;padding:40px;color:#333}}
/* Keep clipped formula accessibility layers inside the viewport; tables and formulas retain their own horizontal scrolling. */
body{overflow-x:clip}
html{overflow-x:hidden}
/* Anchor KaTeX's visually hidden MathML beside its formula so long expressions
   cannot expand the document viewport outside their scrolling container. */
.katex{position:relative}

/* Keep equation numbers in normal flow: long formulas must scroll with their
   numbers instead of running underneath an absolutely positioned tag. */
.prose .katex-display > .katex > .katex-html:has(> .tag){display:flex;align-items:baseline;width:max-content;min-width:100%}
.prose .katex-display > .katex > .katex-html:has(> .tag)::before{content:"";margin-right:auto}
.prose .katex-display > .katex > .katex-html:has(> .tag) > .base{flex:none}
.prose .katex-display > .katex > .katex-html > .tag{position:static;flex:none;margin-left:auto;padding-left:1.5em}