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0;color:var(--ink-soft);font-size:.85rem;letter-spacing:.04em}.join-legend{display:flex;align-items:center;gap:8px;color:var(--ink-soft);margin:0 0 10px}.join-legend i{width:28px;height:0;border-top:4px solid var(--vermilion);border-radius:4px;display:inline-block}.join-index{list-style:none;padding:0;display:grid;gap:12px;margin:18px 0 28px}.join-card h2{margin-bottom:6px}.join-index-num{margin:0 0 4px;color:var(--vermilion);font-family:var(--serif)}.join-pairs{margin-top:8px;color:var(--ink-soft)}.join-showcase{display:grid;gap:16px;margin-top:12px}.join-showcase .join-word svg{height:280px}.join-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:12px}.join-gallery .is-long{grid-column:1 / -1}.join-gallery .is-long svg{height:200px}.item-switch{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 8px}.item-switch button{font:inherit;min-height:44px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer}.item-switch button.is-on{border-color:var(--vermilion)}.item-done{color:#1f7a45;font-size:.78rem;letter-spacing:.03em}.join-next{margin-top:28px}.model-pane .join-word svg,.model-pane .join-model{width:100%;height:auto;max-height:240px;display:block}.practice-row.is-wide .trace-box{width:100%;max-width:none}.mistake-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}.mistake-card{background:var(--card);border-radius:14px;box-shadow:var(--shadow);padding:10px 12px 12px;border:1.5px solid rgba(34,28,24,.18);min-width:0}.mistake-card.is-mistake{border:1.5px dashed var(--vermilion)}.mistake-card header{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.mistake-card h3{margin:0;font-family:var(--serif);font-weight:500;font-size:1.05rem;line-height:1.3}.mistake-card 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.cta-row{justify-content:center}.explainer-progress{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:4px;margin-top:12px}.explainer-progress span{display:block;height:4px;background:#221c181f;border-radius:99px;overflow:hidden}.explainer-progress i{display:block;height:100%;background:var(--vermilion)}.scene-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.scene-chips button{min-height:44px;display:inline-flex;align-items:center;gap:8px;padding:4px 12px 4px 6px;border-radius:999px;border:1px solid rgba(34,28,24,.22);background:var(--card);color:var(--ink);font:inherit;cursor:pointer;text-align:left}.scene-chips button.is-on{border-color:var(--vermilion);background:#fff}.chip-num{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#efe4d4;font-family:var(--serif);flex:none}.chip-title{line-height:1.2}.explainer-controls{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.explainer-controls .btn[aria-pressed=true]{border-color:var(--vermilion)}.key-hint{color:var(--ink-soft);font-size:.88rem;margin:10px 0 0}.explainer-transcript{margin-top:16px}.explainer-transcript summary{cursor:pointer;min-height:44px;display:flex;align-items:center;font-family:var(--serif);font-size:1.2rem}.explainer-transcript p{margin:8px 0;max-width:42rem}.transcript-num{color:var(--vermilion);font-family:var(--serif);margin-right:6px}.explainer-back{margin-top:22px}.explainer-intro{display:block;width:100%;max-height:420px;margin:0 0 16px;border-radius:12px;background:#1c1814}html[data-large=true] .scene-chips button{min-height:48px}@media(max-width:720px){.mistake-pair{grid-template-columns:1fr}.join-showcase .join-word svg{height:180px}.explainer-caption{font-size:1rem;min-height:5.4rem;padding:12px 14px}.explainer-end{padding:16px 12px}.scene-chips button{flex:1 1 calc(50% - 8px)}}.lazy-video{position:relative;display:block;width:100%;min-width:0;max-width:100%;aspect-ratio:var(--lazy-aspect, 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.lazy-video-toggle{pointer-events:auto;right:10px;bottom:10px}.hero-media:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:1;pointer-events:none;background:linear-gradient(90deg,#f6f0e4f5,#f6f0e4f0 30%,#f6f0e4e6 46%,#f6f0e49e 68%,#f6f0e466)}.hero-copy,.hero-visual,.hero>.cta-row{position:relative;z-index:1}.hero-visual,.hero>.cta-row{pointer-events:none}.hero-visual .stage,.hero-visual button,.hero-visual a,.hero>.cta-row a,.hero>.cta-row button{pointer-events:auto}.guide-card{display:flex;flex-direction:column;align-items:stretch;gap:12px}.guide-card h2{margin-bottom:0}.guide-card .transcript{margin:0;max-width:42rem}.guide-note{margin:0;max-width:42rem;color:var(--ink-soft);font-size:.86rem}.explainer-still{display:block;width:100%;aspect-ratio:16 / 9;object-fit:cover;border-radius:10px;margin:0 0 12px;background:#efe6d6}.explainer-intro.lazy-video{max-height:none;max-width:720px;margin:0 0 16px;background:#efe6d6}.read-teaser{display:grid;gap:14px 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0}.wordmark{font-size:1.2rem}}@media(max-width:800px){.nav-link{min-height:44px;display:flex;align-items:center}}.course-pointer{margin:0 0 10px}.course-home-card p:last-child{margin:14px 0 0}.course-continue-row{margin:18px 0 14px}.course-continue{min-height:52px;max-width:100%;padding-inline:1.3rem;font-size:1.05rem;text-align:center;white-space:normal}.course-inkbar{height:6px;border-radius:99px;background:#221c181a;overflow:hidden;margin-top:8px}.course-inkbar span{display:block;height:100%;background:var(--ink);border-radius:inherit}.course-minutes{color:var(--ink-soft);margin:0 0 8px}.course-tag{color:var(--ink-soft);margin:0 0 8px;font-size:.95rem}.course-stepper{flex-wrap:wrap;row-gap:6px;max-width:100%;padding-bottom:4px}.course-stepper button{min-height:44px}@media(max-width:720px){.course-stepper,.course-chips{max-width:100%}.course-stepper button{padding:6px 9px}}.course-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 14px}.course-chips button{min-height:44px;min-width:44px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;cursor:pointer}.course-chips button.is-on{border-color:var(--vermilion)}.narrator{display:flex;gap:12px;align-items:flex-start;margin:8px 0 18px;padding:12px 14px;border:1px solid rgba(34,28,24,.16);border-radius:18px;background:#fffaf3b8}.narrator-main{min-width:0;flex:1}.narrator-kicker{margin:0 0 8px;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft)}.guide-portrait{width:44px;height:44px;border-radius:50%;object-fit:cover;flex:none;display:block}.guide-portrait.is-large{width:72px;height:72px}.narrator-controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.narrator-rate{display:inline-flex;align-items:center;gap:8px;min-height:44px}.narrator select{min-height:44px;font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:999px;padding:0 12px}.course-caption{margin:12px 0 0;padding:10px 14px;min-height:2.8rem;border-radius:12px;background:#fffaf3d9;border:1px solid var(--line)}.narrator-note{color:var(--ink-soft);margin:8px 0 0}.course-transcript{margin-top:10px}.course-transcript summary{min-height:44px;display:flex;align-items:center;cursor:pointer}.course-transcript p{color:var(--ink-soft)}.say-line{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center}.say-line span{font-family:var(--serif)}.course-stack{display:grid;gap:22px}.course-review-item{padding-top:8px;border-top:1px solid var(--line)}.course-lock h2{font-size:1.35rem}.course-lock p{margin:10px 0}.course-lock-note{display:inline-flex;align-items:center;gap:6px;color:var(--ink-soft)}.lock-icon{width:16px;height:16px;flex:none}.ink-check{width:12px;height:12px;display:block}.unit-grid{display:grid;gap:16px}.unit-card h3{margin-top:4px}.unit-card h3 a{color:var(--ink);text-decoration:none}.unit-card h3 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li{padding-left:2px}.unit-lesson-list{margin-top:22px}.unit-video-slot{position:relative;aspect-ratio:16 / 9;border-radius:14px;overflow:hidden;background:#2a231c;margin-bottom:14px}.unit-video-slot img{width:100%;height:100%;object-fit:cover;display:block}.unit-video-slot .slot-label{position:absolute;left:14px;bottom:14px;margin:0;max-width:calc(100% - 28px);padding:8px 12px;border-radius:999px;background:#f6f0e4eb;color:var(--ink)}.course-overview{margin-top:4px}.guide-quote{display:flex;gap:14px;align-items:flex-start;margin:0 0 16px;padding:14px 16px;border:1px solid var(--line);border-radius:18px;background:#fffaf3e0}.guide-quote p{margin:0;font-family:var(--serif);font-size:1.15rem;line-height:1.45;color:var(--ink)}.lesson-preview-title{margin:0 0 8px;font-size:1.15rem}.lesson-shapes{display:flex;flex-wrap:wrap;gap:12px 14px;align-items:flex-end;margin:0 0 14px}.lesson-shape{margin:0;width:84px}.lesson-shape svg,.lesson-shape .lesson-glyph{width:100%;height:auto;display:block}.lesson-shape figcaption{margin:4px 0 0;text-align:center;font-size:.8rem;color:var(--ink-soft)}.lesson-shapes .lesson-join{width:min(200px,100%);margin:0}.lesson-shapes .lesson-join svg{width:100%;height:auto;display:block}.lesson-intro-next{margin:0;color:var(--ink-soft)}.course-name{display:grid;gap:8px;margin:8px 0 14px;max-width:28rem}.course-name input:not([type=checkbox]),.certificate-name-field input{display:block;width:100%;min-height:44px;margin-top:6px;padding:8px 12px;font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:12px}.remember-name{display:flex;align-items:center;gap:8px;min-height:44px}.remember-name input[type=checkbox]{width:1.05rem;height:1.05rem;min-height:0;margin:0;flex:none;accent-color:var(--ink)}.course-questions{display:grid;gap:16px}.course-questions fieldset{border:1px solid var(--line);border-radius:14px;background:var(--card);margin:0;padding:12px 14px 8px}.course-questions legend{padding:0 4px;font-family:var(--serif)}.course-questions label{display:flex;align-items:center;gap:10px;min-height:44px}.course-summary ul{list-style:none;padding:0;margin:12px 0;display:grid;gap:0}.course-summary li{padding:8px 0;border-top:1px solid var(--line)}.course-letter{display:grid;gap:2px}.letter-line{display:flex;justify-content:flex-start}.letter-line.is-close{justify-content:flex-end}.letter-line.is-faint{opacity:.2}.letter-line-draw{max-width:100%}.letter-line-draw .stage{margin:0}.letter-line-draw .stage-svg,.letter-line-draw .course-still{width:100%;max-height:none;height:auto;display:block}.letter-play{margin:12px 0 4px}.course-still{width:min(100%,640px);height:auto;display:block}.letter-sheet{display:grid;gap:2px}.letter-read-line{display:flex;flex-wrap:wrap;align-items:flex-end;gap:2px 8px;width:100%}.letter-read-line.is-close{justify-content:flex-end}.letter-read-line .cursive-word{flex:0 0 auto;max-width:100%}.letter-read-line .cursive-word svg{display:block;max-width:100%;height:auto}.certificate-tools-title{font-size:1.35rem}.certificate-name-field{display:block;max-width:28rem;margin:8px 0}.certificate-thumb{position:relative;width:min(100%,360px);margin-top:12px}.certificate-thumb-label{display:inline-block;margin:0 0 8px;padding:3px 8px;border-radius:999px;border:1px solid rgba(34,28,24,.18);background:#fbf6eceb;color:var(--ink-soft);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase}.certificate-thumb-window{position:relative;overflow:hidden;border-radius:10px;box-shadow:var(--shadow)}.certificate-thumb-sheet{width:780px;transform-origin:top left;pointer-events:none}.certificate-thumb-sheet .certificate-sheet{width:780px;max-width:none;margin:0}.certificate-sheet{position:relative;max-width:920px;margin:18px auto;padding:36px 40px 28px;background:radial-gradient(ellipse at 12% 0%,rgba(255,250,240,.9),transparent 46%),linear-gradient(180deg,#fbf6ec,#f3e7d2);border:1px solid #2a211c;box-shadow:inset 0 0 0 7px #fbf6ec,inset 0 0 0 8px #2a211cd9;text-align:center}.certificate-seal{width:52px;height:52px;margin:0 auto 8px;display:block}.certificate-sheet h1{font-size:clamp(1.8rem,4vw,2.6rem);margin-bottom:8px;padding-inline:4.5rem}.certificate-kicker{margin:0;letter-spacing:.08em;text-transform:uppercase;font-size:.78rem;color:var(--ink-soft)}.certificate-name{width:min(100%,520px);height:auto;max-height:130px;margin:6px auto 4px;display:block}.certificate-blank{margin:18px auto;min-height:64px;border-bottom:1px solid rgba(34,28,24,.35);max-width:360px;color:var(--ink-soft);font-family:var(--serif);font-size:1.4rem}.certificate-body{max-width:38rem;margin:8px auto 12px}.certificate-date{margin:0;font-family:var(--serif)}.certificate-footer{margin:16px 0 0;color:var(--ink-soft);letter-spacing:.04em}.preview-ribbon{position:absolute;top:18px;right:18px;margin:0;padding:4px 10px;border:1px solid var(--ink);letter-spacing:.14em;text-transform:uppercase;font-size:.72rem}html[data-large=true] .course .trace-box{width:min(100%,560px)}html[data-large=true] .course .stage-svg,html[data-large=true] .course .model-svg{width:min(100%,560px);max-height:none}html[data-large=true] .course-lesson-meta,html[data-large=true] .narrator-note,html[data-large=true] .course-caption{font-size:1.05rem}.packet-spotlight{margin:26px 0 4px;min-width:0}.packet-spotlight .card{min-width:0}.packet-spotlight h2{margin-bottom:6px}.packet-spotlight h2 a{color:var(--ink);text-decoration:none}.packet-spotlight h2 a:hover{color:var(--indigo)}.packet-band>p{max-width:40rem}.packet-download{display:grid;gap:8px;margin-top:14px;min-width:0;max-width:100%}.packet-download .btn-primary{justify-self:start;max-width:100%;height:auto;white-space:normal;text-align:center;line-height:1.3}.packet-download p{margin:0;min-width:0;max-width:100%;color:var(--ink-soft)}.packet-alts{line-height:1.65}.packet-alt-label,.packet-alt-meta{white-space:nowrap}.packet-alt-meta{font-size:.92em}.packet-sep{color:var(--ink-soft)}.packet-note a{white-space:nowrap}.packet-units{display:grid;min-width:0}.packet-unit{padding:16px 0;border-top:1px solid var(--line);min-width:0}.packet-unit h3 a{color:inherit;text-decoration:none}.packet-unit h3 a:hover{color:var(--indigo)}.packet-inside{margin:0 0 4px;color:var(--ink-soft);max-width:46rem}.packet-files{list-style:none;margin:0;padding:0;display:grid;min-width:0}.packet-files a{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:2px 16px;max-width:100%;min-height:44px;padding:8px 0;text-decoration:none}.packet-files a:hover .packet-file-name{text-decoration:underline}.packet-file-name{min-width:0}.packet-file-meta{color:var(--ink-soft)}@media(max-width:420px){.packet-download .btn-primary{justify-self:stretch}}@media(max-width:720px){.certificate-sheet{padding:28px 18px 20px}.preview-ribbon{top:10px;right:10px}.course-lesson{padding-right:0}}@media(min-width:860px){.unit-grid{grid-template-columns:1fr 1fr}.unit-lesson-list .course-lesson{grid-template-columns:minmax(0,1fr) auto;align-items:center}.unit-lesson-list .course-lesson-meta{justify-content:flex-end;padding-left:0}}@page certificate{size:letter landscape;margin:.4in}@media print{html.print-certificate .app{min-height:0!important;display:block!important}html.print-certificate body,html.print-certificate .app,html.print-certificate .certificate-page,html.print-certificate .certificate-sheet{page:certificate}html.print-certificate .site-header,html.print-certificate .site-footer,html.print-certificate .skip,html.print-certificate .no-print,.certificate-page .certificate-tools,.certificate-page .certificate-thumb,.preview-ribbon{display:none!important}.certificate-page{padding:0!important;margin:0!important;max-width:none!important}.certificate-sheet{page:certificate;box-shadow:inset 0 0 0 7px #fff,inset 0 0 0 8px #2a211c;margin:0 auto!important;max-width:none;break-inside:avoid;page-break-inside:avoid;break-after:avoid;page-break-after:avoid}.certificate-sheet h1{font-size:28pt;padding-inline:0;margin-bottom:4px}.certificate-seal{width:40px;height:40px}.certificate-name{max-height:1.15in}.certificate-blank{min-height:.55in;margin:8px auto}.certificate-body{font-size:12.5pt;margin:6px auto 8px}.certificate-footer{margin-top:10px}}@media(prefers-reduced-motion:reduce){.course-inkbar span{transition:none}}.first-note-video{margin:1.15rem 0 .2rem;min-width:0;max-width:100%}.first-note-video figcaption{margin:8px 0 0;color:var(--ink-soft);font-size:.85rem;line-height:1.45}.first-note-transcript{margin:.15rem 0 .4rem;min-width:0;max-width:100%}.first-note-transcript summary{cursor:pointer;min-height:44px;display:flex;align-items:center}.first-note-transcript p{margin:.15rem 0 .5rem;color:var(--ink-soft)}.first-note h2{margin-top:1.45rem}.first-note h3{margin:1.05rem 0 .2rem;font-family:var(--sans);font-size:1.02rem;font-weight:650;letter-spacing:0;line-height:1.35}