:root{--ink:#183c35;--muted:#53665e;--green:#205c49;--deep:#153f33;--paper:#faf9f4;--white:#fff;--line:#d9dfd6;--wash:#edf2e9;--lime:#dfebbd;--lavender:#eae5f3;--orange:#f3dec4;--radius:18px;--shadow:0 12px 40px #153f330a}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:16px;line-height:1.85;overflow-wrap:anywhere}a{color:inherit;text-underline-offset:5px}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #986019;outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.5}h1{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-weight:600;letter-spacing:.025em;font-size:clamp(32px,4.2vw,57px)}h2{font-size:clamp(25px,3vw,36px);letter-spacing:.02em}h3{font-size:20px}p{margin-bottom:1em}small,.small{font-size:13px;color:var(--muted)}.micro{font-size:12px;color:var(--muted)}.muted{color:var(--muted)}.wrap{max-width:1180px;margin:auto;padding:0 32px}.narrow{max-width:870px}.skip{position:fixed;top:-100px;left:16px;z-index:100;background:white;padding:12px}.skip:focus{top:8px}.header{background:var(--paper);border-bottom:1px solid var(--line)}.header-inner{min-height:94px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;flex-shrink:0}.brand-mark{border:1.5px solid var(--green);border-radius:50% 50% 12px 50%;width:39px;height:39px;display:grid;place-items:center;font:24px Georgia,serif;background:var(--lime)}.brand strong{display:block;font-size:17px;letter-spacing:.05em}.brand small{display:block;font-size:10px;letter-spacing:.15em;line-height:1.5}.nav{display:flex;align-items:center;gap:26px}.nav a{font-size:13px;text-decoration:none;white-space:nowrap;min-height:44px;display:flex;align-items:center;border-bottom:2px solid transparent}.nav a:hover,.nav a[aria-current=page]{border-color:var(--green)}.nav a:last-child{padding:6px 15px;border:1px solid var(--line);border-radius:6px}.eyebrow{font-size:12px;color:var(--green);letter-spacing:.12em;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:20px}.eyebrow:before{content:"";width:24px;height:1px;background:currentColor}.hero{padding:68px 0 64px}.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:65px;align-items:center}.hero h1{margin-bottom:22px}.lead{font-size:17px;color:var(--muted);max-width:40em}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:25px 0 14px}.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:24px;border:1px solid var(--green);background:var(--green);color:white;border-radius:8px;padding:12px 21px;text-decoration:none;font-weight:600;font-size:14px;line-height:1.6;transition:background .15s,transform .15s}.btn:hover{background:var(--deep);transform:translateY(-1px)}.btn.secondary{background:transparent;color:var(--green);border-color:#aabbb0}.btn.secondary:hover{background:var(--wash)}.btn.light{background:var(--lime);border-color:var(--lime);color:var(--deep)}.btn.compact{min-height:42px;padding:8px 14px;font-size:13px;gap:10px}.text-link{display:inline-flex;align-items:center;min-height:44px;font-weight:600;font-size:14px;gap:12px}.meta-line{display:flex;gap:18px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:22px}.meta-line span:before{content:"✓";margin-right:6px}.sample-book{background:var(--wash);padding:30px;border-radius:32px 6px 32px 6px;position:relative}.sample-top{display:flex;justify-content:space-between;align-items:center;font-size:12px;letter-spacing:.1em;margin-bottom:20px}.sample-top b{font:italic 40px Georgia,serif;letter-spacing:0}.sample-top b small{font:12px sans-serif;margin-left:3px}.paper{background:white;border:1px solid var(--line);padding:25px;border-radius:12px;box-shadow:var(--shadow)}.speaker{font-size:11px;color:var(--muted);font-weight:bold;margin:0 0 6px}.speech{font-family:"Yu Mincho",serif;font-size:23px;line-height:1.7;margin-bottom:22px}.demo-btn{display:block;width:100%;border:1px solid #bbc9b9;background:var(--paper);text-align:left;padding:13px 14px;border-radius:6px;font-size:13px;color:var(--green)}.demo-btn:hover{background:var(--lime)}.demo-result{background:var(--lavender);padding:14px;margin:14px 0 0;border-radius:7px;font-size:13px}.sample-bottom{display:flex;gap:12px;align-items:center;margin-top:17px;font-size:12px}.sample-bottom span:first-child{width:28px;height:28px;border-radius:50%;background:var(--lime);display:grid;place-items:center}.benefit-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(3,1fr);padding:25px 0;gap:24px}.benefit-bar div{display:flex;gap:17px;align-items:baseline}.benefit-bar b{font-size:13px}.benefit-bar span{color:var(--muted);font-size:12px}.section{padding:65px 0}.section.wash{background:var(--wash)}.section.white{background:white}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}.section-head h2{margin-bottom:0}.section-head p{margin-bottom:4px;color:var(--muted);font-size:14px}.section-head .eyebrow{margin-bottom:12px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.trouble{display:flex;flex-direction:column;min-height:215px;padding:24px;background:white;border:1px solid var(--line);border-radius:10px;text-decoration:none;transition:transform .15s,border-color .15s}.trouble:hover{border-color:var(--green);transform:translateY(-3px)}.trouble .n{font:italic 27px Georgia,serif;color:#76846b;margin-bottom:19px}.trouble h3{font-size:17px;margin-bottom:14px}.trouble .tail{margin-top:auto;font-size:12px;display:flex;justify-content:space-between;color:var(--green)}.feature-panel{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.timeline{list-style:none;margin:0;padding:0}.timeline li{display:flex;align-items:center;gap:20px;padding:17px 0;border-bottom:1px solid var(--line);font-size:14px}.timeline span{width:42px;font-size:12px;color:var(--muted);flex-shrink:0}.timeline b{font-weight:500}.timeline em{margin-left:auto;font-style:normal;font-size:12px;color:var(--muted)}.tag{background:var(--lime);border-radius:5px;padding:4px 8px;font-size:11px;display:inline-block;color:var(--deep)}.tag.lavender{background:var(--lavender)}.tag.plain{background:var(--wash)}.card{padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:white}.card h3{margin-top:16px}.card p{font-size:14px;color:var(--muted)}.card .actions{margin-bottom:0}.big-number{font:italic 48px Georgia,serif}.cta{background:var(--deep);color:white;border-radius:16px;padding:36px 42px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:26px;margin-bottom:10px}.cta p{font-size:14px;margin-bottom:0;color:#dce6d6}.footer{padding:42px 0 25px;border-top:1px solid var(--line)}.footer-top{display:flex;justify-content:space-between;gap:30px}.footer p{font-size:12px;color:var(--muted);margin:13px 0}.footer-links{display:flex;flex-wrap:wrap;gap:22px;font-size:12px;align-content:start}.footer-bottom{border-top:1px solid var(--line);margin-top:27px;padding-top:17px;display:flex;justify-content:space-between;gap:15px;font-size:11px;color:var(--muted)}.page-head{padding:45px 0 33px}.page-head h1{font-size:clamp(29px,3.7vw,43px);margin-bottom:14px}.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:24px}.prose h2{font-size:24px;margin:40px 0 18px}.prose h3{font-size:18px;margin:25px 0 10px}.prose p,.prose li{font-size:15px}.prose li{margin:9px 0}.notice{padding:17px 20px;background:var(--wash);border-radius:8px;font-size:13px;color:var(--muted);border-left:3px solid #a4b793}.notice.warm{background:#f8efdf;border-color:#b18d51;color:#5b4a2d}.divider{border:0;border-top:1px solid var(--line);margin:30px 0}.list-clean{padding:0;list-style:none}.list-clean li{padding:14px 0;border-bottom:1px solid var(--line)}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:14px}th,td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}th{background:var(--wash);font-weight:600}details{border-bottom:1px solid var(--line);padding:17px 0}summary{cursor:pointer;font-weight:600;font-size:15px}details p,details ul{margin-top:14px;color:var(--muted);font-size:14px}input,textarea,select{color:var(--ink);background:white;border:1px solid #a5b4a9;border-radius:7px;padding:11px 13px;max-width:100%;font-size:15px}textarea{width:100%;min-height:105px;resize:vertical;line-height:1.8}label{display:block;font-size:14px;font-weight:600;margin-bottom:9px}.field{margin:20px 0}.field .small{display:block;margin:7px 0 10px}fieldset{border:0;padding:0;margin:25px 0}legend{font-size:16px;font-weight:600;margin-bottom:13px}.radios{display:flex;flex-wrap:wrap;gap:10px}.radio{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:400;min-height:44px;margin:0;padding:8px 12px;border:1px solid var(--line);border-radius:7px}.radio input{accent-color:var(--green)}.check{display:flex;align-items:start;gap:12px;font-weight:400;font-size:14px}.check input{margin-top:8px;accent-color:var(--green)}.status{font-size:13px;color:var(--green);min-height:1.85em}.hidden,[hidden]{display:none!important}
/* Lesson workspace */
.lesson-page{padding:26px 0 55px}.lesson-title-row{display:flex;align-items:start;justify-content:space-between;gap:22px}.lesson-title-row h1{font-family:inherit;font-size:26px;margin:8px 0 9px;letter-spacing:0}.lesson-title-row p{font-size:13px}.lesson-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:space-between;margin:16px 0 22px}.segmented{display:flex;background:#e8ede5;padding:4px;border-radius:8px;gap:3px}.segmented button{background:transparent;border:0;color:var(--muted);padding:9px 17px;font-size:13px;border-radius:6px;min-height:42px}.segmented button[aria-pressed=true]{background:white;color:var(--green);font-weight:bold;box-shadow:0 2px 6px #00000008}.tool-right{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.tool-right label{font-size:12px;margin:0}.tool-right select{font-size:12px;padding:7px 9px}.lesson-layout{display:grid;grid-template-columns:205px minmax(0,1fr);gap:30px;align-items:start}.steps{list-style:none;padding:10px 0;margin:0}.steps li{margin-bottom:6px}.step-button{border:0;background:transparent;display:flex;align-items:center;gap:12px;padding:11px 10px;width:100%;text-align:left;border-radius:8px;font-size:13px;color:var(--muted)}.step-button span{display:grid;place-items:center;border:1px solid #bfcbbd;border-radius:50%;width:27px;height:27px;flex-shrink:0;font-size:11px}.step-button[aria-current=step]{background:var(--green);color:white}.step-button[aria-current=step] span{border-color:#aac6a1}.step-button small{display:block;font-size:10px;color:inherit}.step-note{font-size:11px;color:var(--muted);padding:15px 10px}.stage-panel{background:white;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.stage-bar{background:var(--wash);padding:13px 28px;display:flex;justify-content:space-between;align-items:center;font-size:12px;gap:15px}.stage-content{padding:30px 34px}.stage-content h2{font-size:26px;margin:6px 0 18px}.stage-content>p{font-size:14px;color:var(--muted)}.script{padding:20px 22px;background:var(--paper);border-left:3px solid #91a77c;border-radius:0 10px 10px 0;margin:20px 0}.script p:last-child{margin:0;font-size:17px;line-height:1.9}.teacher-guide{background:var(--wash);padding:17px 20px;border-radius:8px;margin:18px 0;font-size:13px;color:var(--muted)}.teacher-guide strong{color:var(--green)}.scene-controls{display:flex;gap:7px;flex-wrap:wrap;margin:16px 0}.scene-controls button{border:1px solid var(--line);border-radius:30px;padding:8px 13px;min-height:41px;color:var(--muted);background:white;font-size:12px}.scene-controls button[aria-pressed=true]{background:var(--green);color:white;border-color:var(--green)}.student-line{padding:20px;background:var(--lavender);border-radius:12px 12px 12px 2px;margin:17px 0}.student-line p{font-size:18px;margin:0;line-height:1.8}.choice-list{display:grid;gap:9px}.choice{display:flex;align-items:start;gap:13px;border:1px solid #bdcbbd;background:white;color:var(--green);padding:14px 16px;border-radius:8px;text-align:left;width:100%;font-size:14px;line-height:1.7;min-height:48px}.choice:hover{background:var(--wash)}.choice[aria-pressed=true]{background:var(--wash);border:2px solid var(--green);padding:13px 15px}.choice .letter{display:grid;place-items:center;flex-shrink:0;border:1px solid var(--line);border-radius:50%;width:23px;height:23px;font-size:11px}.response{background:#f5f4ef;border:1px solid var(--line);padding:20px;border-radius:10px;margin:18px 0}.response p{font-size:14px}.response p:last-child{margin-bottom:0}.reaction-grid{display:flex;flex-wrap:wrap;gap:8px}.reaction-grid button{background:white;border:1px solid #a8b8a8;border-radius:6px;color:var(--green);padding:8px 12px;font-size:12px;min-height:44px}.reaction-grid button[aria-pressed=true]{background:var(--green);color:white}.choice-help{font-size:12px;color:var(--muted);margin:12px 0}.stage-footer{border-top:1px solid var(--line);padding:19px 34px;display:flex;justify-content:space-between;gap:14px;align-items:center}.stage-footer .small{font-size:11px}.progress-track{height:3px;background:#dfe6d9}.progress-track div{height:100%;background:var(--green)}.timer{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.timer output{font-variant-numeric:tabular-nums;font-size:16px;min-width:48px}.timer button{border:1px solid #b9c6b6;border-radius:5px;background:white;color:var(--green);font-size:11px;padding:5px 10px;min-height:32px}.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.summary-item{border:1px solid var(--line);border-radius:8px;padding:16px;min-width:0}.summary-item h3{font-size:12px;color:var(--muted);margin-bottom:8px}.summary-item p{white-space:pre-wrap;margin:0;font-size:14px}.dot-list{padding-left:20px;font-size:14px}.dot-list li{margin-bottom:10px}.reset-panel{background:#f8efdf;border:1px solid #decbaa;border-radius:8px;padding:18px;margin:15px 0;font-size:14px}.empty-note{font-size:13px;font-style:italic;color:var(--muted)}.retained{margin:20px 0;padding:14px;background:var(--wash);border-radius:8px;font-size:14px;white-space:pre-wrap}.print-only{display:none}.progress-label{margin-bottom:12px;font-size:12px;color:var(--muted)}
@media(max-width:1050px){.header-inner{gap:15px}.nav{gap:15px}.nav a{font-size:12px}.hero-grid{gap:30px}.hero h1{font-size:42px}.grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-layout{grid-template-columns:175px minmax(0,1fr);gap:20px}.stage-content{padding:25px}.stage-footer{padding:17px 25px}.benefit-bar div{display:block}}
@media(max-width:760px){.wrap{padding:0 20px}.header-inner{flex-direction:column;align-items:flex-start;gap:8px;padding-top:16px;padding-bottom:9px;min-height:auto}.nav{width:100%;gap:17px;overflow-x:auto;padding-bottom:3px}.nav a{font-size:11px;min-height:37px}.nav a:last-child{padding:3px 9px}.brand strong{font-size:16px}.brand small{font-size:9px}.hero{padding:36px 0 40px}.hero-grid,.feature-panel{grid-template-columns:1fr;gap:32px}.hero h1{font-size:clamp(30px,6.5vw,45px)}.hero .lead{font-size:15px}.sample-book{padding:22px}.sample-top{margin-bottom:14px}.benefit-bar{gap:16px;padding:20px 0}.benefit-bar span{font-size:10px;display:block}.benefit-bar b{font-size:12px}.section{padding:42px 0}.section-head{display:block}.section-head p{margin-top:12px}.grid{grid-template-columns:1fr}.grid.two{grid-template-columns:1fr}.trouble{padding:19px;min-height:195px}.trouble h3{font-size:16px}.trouble .tail{font-size:11px}.cta{display:block;padding:27px}.cta .btn{margin-top:20px}.footer-top,.footer-bottom{flex-direction:column;gap:14px}.footer-links{gap:16px}.page-head{padding:30px 0 20px}.lesson-title-row{display:block}.lesson-title-row h1{font-size:22px}.lesson-tools{gap:14px}.lesson-layout{display:block}.steps{display:flex;overflow-x:auto;gap:5px;padding:0 0 12px;margin-bottom:8px}.steps li{flex-shrink:0}.step-button{padding:8px;white-space:nowrap;gap:7px;font-size:11px}.step-button span{width:23px;height:23px}.step-note{display:none}.stage-bar{padding:12px 17px;flex-wrap:wrap}.stage-content{padding:23px 18px}.stage-content h2{font-size:22px}.stage-footer{padding:17px;gap:10px;flex-wrap:wrap}.stage-footer .btn{font-size:12px;padding:10px 12px;gap:8px}.stage-footer .small{width:100%;order:3}.segmented button{padding:8px 14px}.tool-right{gap:10px}.summary-grid{grid-template-columns:1fr}.speech{font-size:21px}.actions .btn{flex-grow:1}.paper{padding:21px}.script{padding:17px}.script p:last-child{font-size:16px}.table-wrap th,.table-wrap td{padding:12px;font-size:12px}input,textarea,select{font-size:16px}.lesson-page{padding-top:18px}}
@media(max-width:380px){.wrap{padding:0 14px}.grid.four{gap:12px}.trouble{padding:15px}.trouble h3{font-size:14px}.meta-line{gap:10px}.btn{padding:11px 15px;font-size:13px}.hero h1{font-size:29px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
@page{size:A4 portrait;margin:14mm}
@media print{body{background:white;color:black;font-size:10pt;line-height:1.7}.header,.footer,.no-print{display:none!important}.print-only{display:block}.printing-record>header,.printing-record>main,.printing-record>footer,.printing-record>.skip{display:none!important}.printing-record #print-record{display:block!important}.print-sheet{break-after:page;page-break-after:always}.print-sheet:last-child{break-after:auto;page-break-after:auto}.print-record-field{margin:8mm 0;break-inside:auto}.print-record-field h2{font-size:11pt;margin:0 0 3mm}.print-record-field p{white-space:pre-wrap;overflow-wrap:anywhere}.print-title{font-size:18pt;font-family:inherit}a{color:black}.wrap{padding:0;max-width:none}.card{box-shadow:none}.print-meta{font-size:8pt;color:#444}}

/* Daily-life scene context and concrete reaction choices */
.scene-context{padding:16px 18px;background:var(--paper);border:1px solid var(--line);border-radius:9px;font-size:14px;line-height:1.8}.scene-context p:last-child{margin-bottom:0}.sample-excerpt{border-top:1px solid var(--line);padding-top:12px;margin-top:12px}.reaction-heading{margin-top:26px}.reaction-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.reaction-grid button{text-align:left;display:flex;flex-direction:column;gap:8px;padding:13px;font-size:14px;line-height:1.7;overflow-wrap:anywhere}.reaction-label{display:block;font-size:11px;line-height:1.6}.observed-action{font-size:13px!important;color:var(--muted);line-height:1.8}.response .speaker{font-size:11px}.response p:not(.speaker):not(.observed-action){font-size:17px;line-height:1.8}@media(max-width:760px){.reaction-grid{grid-template-columns:1fr}.reaction-grid button{padding:13px 15px}.scene-context{font-size:13px;padding:14px}}