:root{--ink:#172d29;--muted:#687570;--green:#17664f;--deep:#123f39;--line:#e0e7e3;--pale:#f2f7f4;--paper:#fff;--side:258px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:#fff;color:var(--ink);font:16px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #d39e45;outline-offset:4px}button{color:var(--ink)}.skip{position:fixed;top:-80px;left:10px;z-index:100;background:#fff;padding:12px}.skip:focus{top:8px}.header{height:86px;position:fixed;z-index:30;inset:0 0 auto;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 34px;gap:34px}.brand{display:flex;align-items:center;gap:14px;font-size:19px;font-weight:700;letter-spacing:.02em}.brand-icon{background:var(--deep);color:white;width:39px;height:42px;border-radius:9px;display:grid;place-items:center;font-size:30px;font-weight:400}.brand small{display:block;font-size:10px;font-weight:500;letter-spacing:1.6px;color:var(--muted);line-height:1.4}.header nav{display:flex;gap:28px;margin-left:auto;font-size:14px;height:100%;align-items:center}.header nav a{height:100%;display:flex;align-items:center;border-bottom:2px solid transparent}.header nav a.active{color:var(--green);border-bottom-color:var(--green);font-weight:600}.institution{font-size:14px;color:var(--muted);border-left:1px solid var(--line);padding-left:28px}.sidebar{position:fixed;left:0;top:86px;bottom:0;width:var(--side);border-right:1px solid var(--line);padding:30px 20px 20px;background:#f9fbfa;overflow:auto;display:flex;flex-direction:column;z-index:20}.side-label{font-size:14px;font-weight:600;padding:0 10px 22px;display:flex;justify-content:space-between}.side-label span{font-size:12px;color:var(--muted);font-weight:400}.side-home{font-size:15px;padding:9px 12px;border-radius:5px}.sidebar a:hover,.sidebar a.active{background:#e7f0eb;color:var(--green)}.nav-module{margin-top:25px}.nav-module>a{display:flex;align-items:start;gap:11px;font-size:14px;padding:8px 10px;font-weight:600;border-radius:5px}.nav-module .num{font:12px/2 monospace;color:#7a8e84}.nav-module small{display:block;margin:2px 0 0 36px;color:var(--muted);font-size:12px}.side-bottom{border-top:1px solid var(--line);margin-top:auto;padding-top:18px}.side-bottom a{font-size:14px;display:block;padding:6px 10px;border-radius:4px}.side-bottom p{margin:20px 10px 0;color:var(--muted);font-size:12px}.workspace{margin-left:var(--side);padding-top:86px}.breadcrumb{height:57px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 46px;font-size:12px;color:var(--muted)}main{max-width:1250px;margin:auto;padding:44px 48px 80px;min-height:70vh}.page-grid{display:grid;grid-template-columns:minmax(0,1fr) 180px;gap:48px}.page-toc{align-self:start;position:sticky;top:120px;font-size:13px;border-left:1px solid var(--line);padding-left:22px}.page-toc p{font-size:12px;color:var(--muted);margin:0 0 16px}.page-toc a{display:block;margin-bottom:13px;color:#55675f}.page-toc a:hover{color:var(--green)}.page-toc .toc-note{margin-top:30px;border-top:1px solid var(--line);padding-top:20px;font-size:13px;line-height:1.9}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--green);font-size:12px;letter-spacing:1.6px;font-weight:600;margin-bottom:19px}.eyebrow:before{content:"";height:2px;width:26px;background:var(--green)}h1,h2,h3,h4{line-height:1.4;letter-spacing:-.03em}h1{font-size:clamp(34px,4.2vw,57px);margin:0 0 12px;font-weight:700}h1 em{color:var(--green);font-style:normal}h2{font-size:26px;margin:0}h3{font-size:21px;margin:0 0 17px}p{margin:16px 0}.english{color:#7b8a82;font-size:16px;letter-spacing:.4px;margin:0 0 24px}.intro{font-size:17px;color:#52665b;line-height:1.9;max-width:680px;margin:20px 0 25px}.actions{display:flex;gap:12px;flex-wrap:wrap}.button{border:1px solid #ccd8d0;border-radius:6px;padding:10px 18px;font-size:14px;background:white;display:inline-flex;align-items:center;justify-content:center;gap:12px;line-height:1.5}.button:hover{background:#edf5ef}.button.primary{background:var(--green);color:white;border-color:var(--green)}.button.primary:hover{background:var(--deep)}.metadata{display:flex;gap:22px;font-size:12px;color:var(--muted);margin:26px 0 31px;flex-wrap:wrap}.metadata strong{font-size:16px;color:var(--ink);margin-right:4px}.hero-figure{border:1px solid var(--line);margin:20px 0 0;overflow:hidden;border-radius:7px;background:#fafcfb}.hero-figure img{width:100%;height:auto;display:block;padding:18px;background:#fff;max-height:300px;object-fit:contain}.hero-figure figcaption{border-top:1px solid var(--line);padding:10px 18px;font-size:12px;display:flex;justify-content:space-between;color:var(--muted)}.section{margin-top:54px;scroll-margin-top:110px}.section-heading{display:flex;justify-content:space-between;gap:14px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:21px}.section-heading span{font-size:10px;letter-spacing:1.4px;color:#829089}.section>p{color:#53645b}.module-card{display:grid;grid-template-columns:46px minmax(0,1fr) 24px;gap:15px;padding:23px 0;border-bottom:1px solid var(--line)}.module-card:hover h3{color:var(--green)}.module-no{font:26px/1.4 Georgia,serif;color:#82a090}.module-card h3{font-size:19px;margin:0 0 8px}.module-card p{font-size:14px;color:var(--muted);margin:5px 0}.module-card .module-pages{font-size:12px;color:var(--green)}.module-arrow{align-self:center;color:var(--green)}.note{padding:18px 22px;background:var(--pale);border-left:3px solid #438267;margin:25px 0;font-size:14px}.note p{margin:5px 0 0;color:#52645b}.teacher{display:flex;gap:24px;align-items:center;padding:23px 0}.teacher-mark{border-radius:50%;background:var(--deep);color:white;font:25px/1 serif;width:64px;height:64px;display:grid;place-items:center;flex-shrink:0}.teacher strong{font-size:20px}.teacher p{font-size:14px;margin:2px 0;color:var(--muted)}.teacher a{color:var(--green)}.reading-header{padding-bottom:26px;border-bottom:1px solid var(--line)}.reading-header h1{font-size:38px}.reading-header .intro{font-size:16px}.module-title{background:var(--deep);color:#fff;padding:28px 30px;margin:45px 0 32px;border-radius:5px}.module-title small{display:block;letter-spacing:1.6px;color:#b7d3c4;font-size:11px;margin-bottom:10px}.module-title h2{font-size:27px}.module-title p{margin:8px 0 0;color:#cce0d4;font-size:14px}.topic{margin:36px 0 48px;scroll-margin-top:115px}.topic-heading{display:flex;justify-content:space-between;align-items:baseline;gap:18px}.topic-heading a{white-space:nowrap;font-size:12px;color:var(--green)}.topic p{color:#40534a}.topic figure{margin:22px 0}.topic figure img{max-width:100%;max-height:490px;object-fit:contain;background:#fff;border:1px solid var(--line);padding:10px;border-radius:4px;cursor:zoom-in}.topic figcaption{font-size:12px;color:var(--muted);margin-top:8px}.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:26px 0}.flow span{background:var(--pale);border-top:2px solid #76a28c;padding:15px 10px;font-size:13px}.flow b{display:block;font-size:14px;color:var(--green);margin-bottom:6px}.steps{padding-left:23px}.steps li{padding:6px 0}.table-wrap{max-width:100%;overflow:auto;border:1px solid var(--line);border-radius:5px;margin:23px 0}table{width:100%;border-collapse:collapse;text-align:left;min-width:480px;font-size:14px}td,th{padding:14px 16px;border-bottom:1px solid var(--line)}th{background:var(--pale);font-weight:600}tr:last-child td{border-bottom:0}.citation{font-size:13px!important;color:#74817b!important;border-top:1px solid var(--line);padding-top:15px}details{border:1px solid var(--line);padding:16px 20px;border-radius:5px;background:#fcfdfc;margin:24px 0}summary{cursor:pointer;font-size:14px;font-weight:600}details p{font-size:14px;margin-bottom:3px}.question-label{font-size:11px;color:var(--green);letter-spacing:.8px;margin-bottom:8px}.glossary-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 30px;margin-top:30px}.term{padding:23px 0;border-top:1px solid var(--line)}.term strong{color:var(--green);font-size:19px}.term h3{font-size:16px;margin:5px 0}.term p{font-size:14px;color:var(--muted);margin:7px 0}.term a{font-size:13px;color:var(--green)}.resources-list{padding:0;list-style:none}.resources-list li{padding:20px 0;border-bottom:1px solid var(--line)}.resources-list strong{display:block;font-size:17px}.resources-list p{color:var(--muted);font-size:14px;margin:5px 0}.resources-list a{font-size:14px;color:var(--green)}footer{margin:0 48px;border-top:1px solid var(--line);padding:23px 0;display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.mobile{display:none}.slide-toolbar{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:23px;flex-wrap:wrap}.slide-toolbar .controls{display:flex;gap:8px;align-items:center}.slide-toolbar select{padding:7px 10px;border:1px solid var(--line);border-radius:4px;max-width:100%;font-size:14px;background:#fff}.slide-sheet{background:#fff;border:1px solid var(--line);border-radius:8px;min-height:480px;padding:30px 34px;box-shadow:0 10px 35px #173d2810}.slide-label{font-size:11px;letter-spacing:1px;color:var(--green);display:flex;justify-content:space-between;margin-bottom:16px}.slide-sheet h1{font-size:clamp(24px,3vw,36px);margin-bottom:23px;overflow-wrap:anywhere}.slide-text p{margin:8px 0;font-size:16px;overflow-wrap:anywhere}.slide-media{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:22px 0}.slide-media.single{grid-template-columns:1fr}.slide-media figure{margin:0;text-align:center}.slide-media img{width:100%;max-height:65vh;object-fit:contain;cursor:zoom-in;border:1px solid #edf1ee}.slide-media figcaption{font-size:12px;color:var(--muted)}.animation-button{border:1px solid var(--line);background:var(--pale);font-size:12px;border-radius:4px;padding:5px 14px;margin:7px}.slide-footer{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:23px}.slide-footer span{font-size:13px;color:var(--muted)}button:disabled{opacity:.4;cursor:default}.slide-progress{height:3px;background:var(--line);margin-top:27px}.slide-progress span{display:block;height:100%;background:var(--green)}.help{font-size:12px;color:var(--muted);text-align:center;margin:17px 0}#main:fullscreen{overflow:auto;background:var(--pale);padding:28px 5vw;max-width:none}#main:fullscreen .slide-sheet{min-height:75vh}#main:fullscreen .slide-media img{max-height:50vh}dialog{border:1px solid var(--line);padding:25px;max-width:95vw;max-height:94vh;border-radius:8px}dialog::backdrop{background:#061c18da}dialog img{display:block;max-width:85vw;max-height:75vh;object-fit:contain;margin-top:25px}dialog button{float:right;border:0;background:var(--pale);padding:7px 16px;border-radius:4px}dialog p{font-size:12px;color:var(--muted)}.error{padding:25px;border:1px solid #bd6359;background:#fff6f3}.noscript{margin:200px 20px 20px 280px}code{background:var(--pale);border-radius:3px;padding:2px 5px;font-size:.9em}
@media(min-width:1600px){main{padding-top:60px}.page-grid{gap:70px}}
@media(max-width:1200px){:root{--side:232px}.page-grid{grid-template-columns:minmax(0,1fr)}.page-toc{display:none}.header{gap:20px;padding:0 25px}.institution{display:none}main{padding:35px}.breadcrumb{padding:0 35px}.header nav{gap:20px}.brand{font-size:17px}.brand small{font-size:9px}.hero-figure img{max-height:330px}}
@media(max-width:760px){.header{height:74px;padding:0 18px;gap:12px}.brand{font-size:16px;gap:9px}.brand small{font-size:8px;letter-spacing:.7px}.brand-icon{width:32px;height:36px;font-size:25px}.header nav{display:none}.mobile{display:block;margin-left:auto;border:1px solid var(--line);border-radius:4px;background:#fff;padding:6px 10px;font-size:12px}.sidebar{top:74px;transform:translateX(-101%);width:265px;box-shadow:10px 0 25px #123f3918}.sidebar.open{transform:translateX(0)}.workspace{margin-left:0;padding-top:74px}.breadcrumb{height:48px;padding:0 20px}.breadcrumb>span:last-child{display:none}main{padding:30px 20px 50px}h1{font-size:37px}.english{font-size:13px}h2{font-size:23px}.intro{font-size:16px}.metadata{gap:14px}.hero-figure img{padding:7px}.hero-figure figcaption{font-size:11px;padding:8px 11px}.hero-figure figcaption span:last-child{display:none}.section{margin-top:37px}.section-heading span{display:none}.module-card{grid-template-columns:33px 1fr 15px;gap:9px}.module-card h3{font-size:17px}.teacher{gap:15px}.teacher p{overflow-wrap:anywhere}.reading-header h1{font-size:30px}.module-title{padding:22px;margin-top:28px}.topic-heading{display:block}.topic-heading h3{margin-bottom:5px}.topic-heading a{display:inline-block;margin-bottom:8px}.flow{grid-template-columns:1fr 1fr}.glossary-grid{grid-template-columns:1fr}.slide-sheet{padding:20px 16px;min-height:400px}.slide-media{grid-template-columns:1fr}.slide-toolbar{align-items:stretch}.slide-toolbar select{width:100%}.slide-toolbar .controls{width:100%}.slide-toolbar .controls button{flex:1;font-size:12px}.slide-footer .button{padding:9px 12px}.slide-label{font-size:10px}.slide-footer span{font-size:11px}footer{margin:0 20px;font-size:11px}#main:fullscreen{padding:15px}.noscript{margin:120px 20px}.section-heading{gap:10px}.topic{scroll-margin-top:95px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.header,.sidebar,.breadcrumb,.page-toc,.actions,.slide-toolbar,.slide-footer,.help,footer,.topic-heading a{display:none}.workspace{margin:0;padding:0}main{padding:0;max-width:none}.page-grid{display:block}.module-title{break-after:avoid}figure,table,details{break-inside:avoid}details>p{display:block}h2,h3{break-after:avoid}a{color:inherit}.slide-sheet{box-shadow:none;border:0}}

.slide-media video{display:block;width:100%;max-height:65vh;background:#10251f}#main:fullscreen{width:100%;height:100%;overflow:auto;background:#f2f7f4;padding:25px 5vw;max-width:none}.slide-media img[hidden]{display:none}

.slide-embed{margin:22px 0}.video-frame{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;border:1px solid var(--line);border-radius:6px;background:#081d18;box-shadow:0 10px 28px #173d2814}.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.slide-embed>p{margin:12px 0 0;text-align:right}@media(max-width:760px){.slide-embed{margin:16px 0}.slide-embed>p .button{width:100%}}

/* Purple course theme and self-study presentation layout */
:root{--ink:#28163d;--muted:#746580;--green:#6d28d9;--deep:#3b176b;--line:#e7dcf0;--pale:#f7f1fc;--paper:#fff}
body{background:linear-gradient(180deg,#fff 0,#fdfbff 55%,#faf6fe 100%)}
.sidebar{background:#fcf9ff}.sidebar a:hover,.sidebar a.active{background:#f0e7fa}.button:hover{background:#f5effb}.note{border-left-color:#8b5cf6}.module-title{background:linear-gradient(135deg,#321052,#5b2190)}.teacher-mark,.brand-icon{background:linear-gradient(145deg,#321052,#7c3aed)}
.slide-sheet{padding:0;overflow:hidden;border-color:#dfcfeb;box-shadow:0 20px 55px #4c1d6f17;background:linear-gradient(145deg,#fff 0%,#fdfaff 100%)}
.slide-label{margin:0;padding:14px 30px;background:#f6effb;border-bottom:1px solid var(--line);color:#67319b}
.slide-heading{padding:28px 32px 20px;border-bottom:1px solid #eee5f4}
.slide-heading>span{display:inline-block;color:#7c3aed;font-size:11px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;margin-bottom:7px}
.slide-heading h1{margin:0 0 10px;font-size:clamp(26px,3.1vw,42px);color:#2d1445}
.slide-heading p{max-width:920px;margin:0;color:#665372;font-size:15px;line-height:1.8}
.slide-composition{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(280px,.8fr);gap:0;min-height:430px}
.visual-column{padding:26px 28px 30px;display:flex;align-items:center;background:radial-gradient(circle at 15% 15%,#f5ecff 0,transparent 38%)}
.visual-column>.slide-media,.visual-column>.slide-embed,.visual-column>.concept-stage{width:100%}
.study-column{border-left:1px solid var(--line);padding:27px 26px;background:#fcfaff;display:flex;flex-direction:column;gap:22px;justify-content:center}
.mini-label{display:block;color:#7c3aed;font-size:10px;font-weight:800;letter-spacing:1.4px;text-transform:uppercase;margin-bottom:10px}
.key-points ul{list-style:none;margin:0;padding:0}.key-points li{position:relative;padding:9px 0 9px 18px;border-bottom:1px solid #eee5f4;font-size:13px;line-height:1.65;color:#483655}.key-points li:before{content:"";position:absolute;left:0;top:18px;width:6px;height:6px;border-radius:50%;background:#8b5cf6}.key-points li:last-child{border-bottom:0}
.reading-cue{padding:18px 20px;border-radius:10px;background:#f4eafd}.reading-cue p{margin:0;font-size:14px;color:#564263}
.slide-media{margin:0;gap:12px}.slide-media figure{background:#fff;border:1px solid #eadff2;border-radius:9px;overflow:hidden;box-shadow:0 8px 22px #4c1d6f0c}.slide-media img{border:0;max-height:58vh;padding:8px}.slide-media figcaption{padding:6px 10px 9px}.slide-media.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}.slide-media.gallery img{max-height:27vh}
.concept-stage{min-height:310px;border-radius:14px;padding:42px;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;background:radial-gradient(circle at 75% 25%,#a855f7 0,transparent 35%),linear-gradient(135deg,#2e1065,#6b21a8 58%,#9333ea)}.concept-stage span{font-size:11px;letter-spacing:2px;color:#e9d5ff}.concept-stage strong{font-size:29px;margin-top:8px}.concept-stage p{margin:5px 0 0;color:#f3e8ff}
.discussion{margin:0;background:#fff;border-color:#ddcbed;border-radius:10px;padding:0;overflow:hidden}.discussion summary{padding:16px 18px;list-style:none;display:grid;gap:5px;color:#352040}.discussion summary::-webkit-details-marker{display:none}.discussion summary>span{font-size:10px;color:#7c3aed;font-weight:800;letter-spacing:1.2px}.discussion summary>small{font-size:11px;color:#8d7b98;font-weight:400}.discussion[open] summary{background:#f7f0fc}.discussion>p{margin:0;padding:15px 18px;border-top:1px solid var(--line);color:#5c4968;font-size:13px}
.raw-copy{margin:12px 0 0;padding:9px 12px;background:#fff}.raw-copy summary{font-size:12px;color:#6d28d9}.raw-copy p{font-size:12px;line-height:1.65;margin:8px 0;color:#6a5a72}
.topic-enrichment{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:25px 0;padding:20px 22px;background:linear-gradient(135deg,#f8f2fc,#fdfaff);border:1px solid var(--line);border-radius:9px}.topic-enrichment ul{margin:0;padding-left:19px}.topic-enrichment li,.topic-enrichment p{font-size:14px;color:#574663;margin:5px 0}
.slide-guidance{display:grid;gap:10px}.slide-guidance>div{padding:13px 15px;border-left:3px solid #8b5cf6;background:#f6effc;border-radius:0 8px 8px 0}.slide-guidance>div+div{border-left-color:#c084fc;background:#fbf7fe}.slide-guidance .mini-label{margin-bottom:4px}.slide-guidance p{margin:0;color:#513e5e;font-size:12.5px;line-height:1.7}.lecture-expansion{margin:24px 0 28px;padding:24px 26px;border:1px solid #ddcfeb;border-radius:10px;background:linear-gradient(135deg,#faf6fd,#fff)}.lecture-expansion-title span{display:block;color:#7c3aed;font-size:10px;font-weight:800;letter-spacing:1.3px;margin-bottom:4px}.lecture-expansion-title h4{margin:0;font-size:18px;color:#3d2252}.lecture-expansion>p{margin:13px 0;color:#51405c;font-size:14px;line-height:1.85}.lecture-expansion ol{margin:15px 0 0;padding:0;counter-reset:lecture-step;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.lecture-expansion li{list-style:none;counter-increment:lecture-step;position:relative;padding:11px 12px 11px 38px;background:#f4ecfa;border-radius:7px;color:#544060;font-size:13px;line-height:1.65}.lecture-expansion li:before{content:counter(lecture-step);position:absolute;left:12px;top:12px;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;background:#6d28d9;color:#fff;font-size:10px;font-weight:700}
.print-controls{display:flex;align-items:end;justify-content:space-between;gap:30px;padding:24px 28px;margin-bottom:30px;background:#f6effb;border:1px solid var(--line);border-radius:10px}.print-controls h1{font-size:34px}.print-controls p{max-width:720px;margin:8px 0 0;color:var(--muted)}.print-cover{display:none}.print-outline{padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.print-outline p{display:flex;justify-content:space-between;border-bottom:1px solid #eee5f4;padding:9px 0;margin:0}.print-outline span{color:var(--muted)}.print-module>.module-title{margin-top:55px}.print-question{padding:16px 20px;margin:22px 0;background:#f8f3fc;border-left:3px solid #8b5cf6}.print-question p{margin:5px 0}.print-end{margin-top:60px;padding:35px;background:#3b176b;color:#fff;border-radius:8px}
.video-frame{background:#241038;box-shadow:0 16px 36px #32105224}
#main:fullscreen{background:#f8f2fc}.slide-progress span{background:linear-gradient(90deg,#6d28d9,#a855f7)}dialog::backdrop{background:#1f0b31e8}
@media(max-width:980px){.slide-composition{grid-template-columns:1fr}.study-column{border-left:0;border-top:1px solid var(--line)}.visual-column{padding:20px}.slide-media.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.slide-label{padding:11px 16px}.slide-heading{padding:22px 17px 17px}.slide-heading p{font-size:14px}.visual-column{padding:14px}.study-column{padding:20px 17px}.topic-enrichment,.lecture-expansion ol{grid-template-columns:1fr}.lecture-expansion{padding:20px 18px}.slide-media.gallery{grid-template-columns:1fr}.slide-media.gallery img{max-height:48vh}.print-controls{display:block}.print-controls button{margin-top:18px;width:100%}}
@media print{body{background:#fff;font-size:11pt;color:#241532}.print-course{max-width:none}.print-controls{display:none}.print-cover{display:flex;min-height:88vh;page-break-after:always;flex-direction:column;justify-content:center;padding:12mm;background:linear-gradient(145deg,#301050,#6d28d9);color:#fff}.print-cover h1{font-size:34pt;margin:10mm 0 2mm}.print-cover h2{font-size:17pt;font-weight:400}.print-outline{page-break-after:always}.print-module{page-break-before:always}.print-module>.module-title{margin-top:0}.topic{break-before:auto;margin:10mm 0}.topic-enrichment,.lecture-expansion{background:#faf7fc}.lecture-expansion{break-inside:avoid}.discussion{break-inside:avoid}.discussion>p{display:block}.print-end{page-break-before:always;background:#3b176b!important;color:#fff!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}.hero-figure,.topic figure{break-inside:avoid}.slide-app{display:none}}

/* Beginner terminology system */
.term-panel{margin:0;border:0;border-top:1px solid var(--line);border-radius:0;background:#fff;padding:0}.term-panel>summary{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 30px;color:#4c1d75;list-style:none;background:#fbf8fe}.term-panel>summary::-webkit-details-marker{display:none}.term-panel>summary span{font-size:15px}.term-panel>summary small{font-size:11px;color:#806b90;font-weight:500}.term-panel-intro{padding:18px 30px 0;color:#715f7d;font-size:13px}.beginner-term-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:22px 30px 30px}.beginner-term-card{border:1px solid #e5d8ee;border-radius:12px;padding:20px;background:linear-gradient(145deg,#fff,#fdfaff);box-shadow:0 7px 22px #4c1d6f0b;break-inside:avoid}.term-title{display:flex;align-items:baseline;justify-content:space-between;gap:14px;border-bottom:1px solid #eee5f4;padding-bottom:10px;margin-bottom:10px}.term-title strong{color:#5b21b6;font-size:17px}.term-title span{font-size:11px;color:#8a7697;text-align:right}.beginner-term-card>p{font-size:14px;line-height:1.75;color:#493653;margin:0 0 14px}.term-example,.term-note{display:grid;grid-template-columns:62px 1fr;gap:9px;padding:9px 11px;border-radius:7px;font-size:12px;line-height:1.65}.term-example{background:#f4ecfb;color:#594269;margin-bottom:8px}.term-note{background:#fff8ea;color:#5f4d2d}.term-example b{color:#6d28d9}.term-note b{color:#a16207}.topic-terms{background:#fcf9ff;border-color:#e5d8ee}.topic-terms>summary{color:#5b21b6}.topic-terms>summary small{font-weight:400;color:#8a7697;margin-left:7px}.topic-terms .beginner-term-grid{padding:18px 0 0}.beginner-term-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr))}.beginner-term-grid.compact .beginner-term-card{padding:15px;box-shadow:none}.beginner-term-grid.compact .term-title{display:block}.beginner-term-grid.compact .term-title span{display:block;text-align:left;margin-top:3px}.beginner-term-grid.compact .beginner-term-card>p{margin-bottom:0;font-size:13px}.term-more{text-align:right!important;font-size:12px!important}.term-more a{color:#6d28d9}.glossary-guide{max-width:820px;margin:28px 0;padding:22px 24px;background:#f7f0fc;border:1px solid var(--line);border-radius:12px}.glossary-guide p{color:#665372;margin:5px 0 18px}.glossary-guide label{display:block;font-size:12px;color:#5b21b6;font-weight:700;margin-bottom:6px}.glossary-guide input{width:min(100%,520px);padding:12px 14px;border:1px solid #d8c6e6;border-radius:8px;background:#fff;color:var(--ink)}.glossary-guide span{display:inline-block;margin-left:12px;color:#806b90;font-size:12px}.glossary-terms{padding:8px 0 30px}.empty-terms{padding:28px;background:#faf6fd;color:var(--muted);border-radius:8px}.print-glossary{page-break-before:always}.print-glossary>.beginner-term-grid{padding:12px 0}.print-glossary .beginner-term-card{box-shadow:none}
@media(max-width:760px){.beginner-term-grid,.beginner-term-grid.compact{grid-template-columns:1fr;padding:16px}.term-panel>summary{padding:15px 17px;align-items:flex-start;flex-direction:column;gap:2px}.term-panel-intro{padding:15px 17px 0}.topic-terms .beginner-term-grid{padding:14px 0 0}.glossary-guide span{display:block;margin:9px 0 0}.term-title{display:block}.term-title span{display:block;text-align:left;margin-top:2px}}
@media print{.term-panel,.topic-terms{display:none}.print-glossary .beginner-term-grid{grid-template-columns:1fr 1fr;gap:4mm}.print-glossary .beginner-term-card{padding:4mm}.print-glossary .term-title strong{font-size:12pt}.print-glossary .beginner-term-card>p{font-size:9.5pt}.print-glossary .term-example,.print-glossary .term-note{font-size:8.5pt}.print-glossary h2{font-size:22pt}}