:root{--paper:#f5f3eb;--white:#fffef9;--ink:#203e35;--green:#216652;--green-dark:#164e3d;--sage:#e9eedf;--line:#dce1d5;--muted:#66766b;--clay:#956449;--peach:#f1dfd0;--radius:24px;--content:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Noto Sans JP','Hiragino Kaku Gothic ProN','Yu Gothic',Meiryo,sans-serif;line-height:1.85;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%;height:auto}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--clay);outline-offset:5px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.5;letter-spacing:.025em}h1{font-size:clamp(2rem,4.2vw,3.4rem)}h2{font-size:clamp(1.65rem,3vw,2.3rem);margin-bottom:20px}h3{font-size:1.3rem}p{margin-bottom:1.1em}small,.small{font-size:.86rem}.muted{color:var(--muted)}.eyebrow{display:block;font-size:.78rem;font-weight:700;letter-spacing:.16em;color:var(--green);margin-bottom:16px}.wrap{width:min(var(--content),calc(100% - 64px));margin-inline:auto}.section{padding-block:76px}.section-tight{padding-block:40px}.center{text-align:center}.center p{margin-inline:auto}.lead{font-size:1.1rem;max-width:740px;color:var(--muted)}.btn{display:inline-flex;gap:18px;align-items:center;justify-content:center;min-height:50px;padding:12px 25px;border-radius:99px;border:1px solid var(--green);background:var(--green);color:#fff;font-weight:700;font-size:.92rem;line-height:1.5;transition:background .18s,transform .18s}.btn:hover{background:var(--green-dark);transform:translateY(-2px)}.btn.outline{background:transparent;color:var(--green)}.btn.outline:hover{background:var(--sage)}.btn.light{background:var(--white);color:var(--green);border-color:transparent}.text-link{display:inline-block;font-weight:700;color:var(--green);border-bottom:1px solid #9cb2a7;padding-bottom:3px}.text-link:hover{border-bottom-color:var(--green)}.badge{display:inline-flex;align-items:center;justify-content:center;background:var(--green);color:#fff;font-size:.85rem;font-weight:700;padding:5px 22px;border-radius:99px;line-height:1.5}.badge.clay{background:var(--clay)}.badges{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin:22px 0}.skip{position:absolute;left:16px;top:-90px;z-index:1000;background:#fff;padding:12px}.skip:focus{top:10px}.site-header{background:rgba(255,254,249,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.header-inner{width:min(1380px,calc(100% - 48px));margin:auto;min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;flex-direction:column;white-space:nowrap;line-height:1.2}.brand strong{font-size:1.45rem;letter-spacing:.03em}.brand span{font-size:.63rem;letter-spacing:.21em;color:var(--muted);margin-top:9px}.site-nav{display:flex;align-items:center;gap:22px;font-size:.81rem;font-weight:700}.site-nav>a:not(.btn){padding-block:12px;border-bottom:2px solid transparent}.site-nav>a[aria-current=page]:not(.btn){border-color:var(--green)}.site-nav .btn{font-size:.79rem;min-height:44px;padding:10px 18px}.nav-toggle{display:none;border:1px solid var(--line);background:var(--white);border-radius:99px;padding:9px 17px;color:var(--ink)}.site-footer{border-top:1px solid var(--line);padding:36px 0;color:var(--muted);font-size:.82rem}.footer-row{display:flex;justify-content:space-between;gap:24px;align-items:center;flex-wrap:wrap}.footer-links{display:flex;gap:22px;flex-wrap:wrap}.site-footer .copyright{margin:22px 0 0;font-size:.72rem}.breadcrumbs{font-size:.78rem;color:var(--muted);padding-top:28px}.breadcrumbs a{text-decoration:underline;text-underline-offset:4px}.page-intro{padding:50px 0 42px}.page-intro h1{margin-bottom:22px}.page-intro .eyebrow{margin-bottom:12px}.page-intro .lead{margin-bottom:0}.hero{padding:32px 0 0}.carousel{position:relative}.slide[hidden]{display:none}.hero-slide{position:relative;min-height:550px;display:grid;grid-template-columns:48% 52%;align-items:center;padding:35px 0 45px}.hero-photo{grid-column:2;grid-row:1;width:100%;height:490px;object-fit:cover;border-radius:var(--radius);object-position:60% center}.hero-copy{grid-column:1;grid-row:1;position:relative;z-index:1;background:var(--white);border-radius:var(--radius);padding:42px 44px;margin-right:-58px;box-shadow:0 10px 40px #203e3505}.hero-copy h1,.hero-copy h2{font-size:clamp(1.9rem,3.1vw,2.7rem);margin-bottom:24px}.hero-copy p{color:var(--muted);font-size:1rem;margin-bottom:28px}.hero-copy .eyebrow{font-size:.76rem}.carousel-controls{display:flex;justify-content:center;align-items:center;gap:13px;padding:0 0 14px}.round-button{border:1px solid var(--line);background:var(--white);color:var(--green);border-radius:50%;width:36px;height:36px;line-height:1}.dot{width:11px;height:11px;border-radius:50%;border:1px solid var(--green);padding:0;background:transparent}.dot[aria-pressed=true]{background:var(--green)}.selfstudy-slide{border-radius:var(--radius);background:var(--peach);padding:55px 65px;min-height:550px;display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center}.selfstudy-slide h2{font-size:clamp(2rem,3.1vw,2.65rem)}.selfstudy-slide .people{display:grid;gap:18px}.person-panel{border:1px solid #c6ae97;border-radius:20px;padding:26px;background:#fffef9c9}.person-panel svg{color:var(--green);width:37px;height:37px;margin-bottom:12px}.person-panel p{font-size:1.1rem;font-weight:700;margin:0}.micro-note{font-size:.78rem;color:var(--muted)}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}.course-card{display:flex;flex-direction:column;min-height:230px;background:var(--white);border:1px solid var(--line);padding:30px;border-radius:var(--radius);transition:transform .18s,border-color .18s}.course-card:hover{transform:translateY(-4px);border-color:#a1b7a9}.course-card .number{font-family:Georgia,serif;font-style:italic;font-size:1.1rem;color:var(--green);margin-bottom:18px}.course-card h3{margin-bottom:12px;font-size:1.35rem}.course-card p{font-size:.92rem;color:var(--muted)}.course-card .text-link{margin-top:auto;align-self:start;font-size:.88rem}.course-formats{margin:26px 0 0;color:var(--muted);text-align:center;font-size:.9rem}.review-panel{background:var(--sage);border-radius:30px;padding:46px 34px;text-align:center}.review-panel h2{margin-bottom:12px}.review-panel .review-lead{font-size:1.05rem;font-weight:700;margin:0 0 28px}.review-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}.review-grid figure{margin:0;background:var(--white);border-radius:22px;overflow:hidden;padding:14px;display:flex;flex-direction:column}.review-grid .screenshot{height:310px;display:flex;align-items:center;justify-content:center}.review-grid img{width:100%;height:100%;object-fit:contain}.review-grid figcaption{padding:12px 0 4px;font-size:.82rem;font-weight:700;color:var(--muted)}.review-panel .closing{font-weight:700;color:var(--green);font-size:1.05rem;margin:26px 0 0}.price-heading{text-align:center;margin-bottom:36px}.price-heading h2{margin-bottom:14px}.price-highlight{display:block;width:fit-content;max-width:100%;margin:27px auto 15px;background:#e5ebdd;border-radius:99px;padding:13px 55px;font-size:clamp(1.3rem,2.5vw,2rem);font-weight:700;line-height:1.6}.price-tax{color:var(--muted);font-size:.85rem}.prices{display:grid;grid-template-columns:1fr 1fr;gap:28px}.price-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.price-card h3{background:var(--green);color:#fff;padding:20px 15px;text-align:center;margin:0;font-size:1.65rem}.price-content{padding:20px 24px 24px}.price-content>.muted{text-align:center;font-size:.9rem}.price-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:15px 10px 26px}.price-row strong,.package strong{font-size:clamp(1.8rem,3vw,2.8rem);line-height:1.4;white-space:nowrap}.price-row span,.package-title{font-size:1.1rem;font-weight:700}.package{background:var(--sage);border-radius:16px;padding:22px 19px;text-align:center}.package-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.package .unit{display:block;text-align:right;font-size:.95rem;margin-top:6px}.saving{color:#795a32;font-weight:700;font-size:.88rem;margin:22px 0 0}.pricing-notes{font-size:.86rem;color:var(--muted);margin-top:24px}.pricing-notes p{margin-bottom:8px}.homepage-contact{background:var(--sage);border-radius:var(--radius);padding:40px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}.homepage-contact h2{font-size:1.55rem}.homepage-contact p{font-size:.88rem}.trial-mini{text-align:center}.trial-mini p{font-size:.8rem;color:var(--muted);margin-top:15px;margin-bottom:0}.content-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:38px}.content-panel h2{font-size:1.6rem}.content-panel+.content-panel{margin-top:28px}.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.split>img{border-radius:var(--radius);width:100%;aspect-ratio:4/3;object-fit:cover}.section-heading{max-width:780px;margin-bottom:36px}.level-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:30px 0}.level{background:var(--sage);padding:22px 16px;border-radius:16px;text-align:center}.level span{display:block;color:var(--muted);font-size:.75rem;margin-bottom:10px}.level strong{font-size:1.1rem}.details-list{padding-left:1.3em;margin:0}.details-list li{padding:6px 0}.materials-note{background:var(--sage);padding:22px 26px;border-radius:16px;margin-top:28px}.materials-note h3{margin-bottom:8px;font-size:1rem}.materials-note p{margin-bottom:0;font-size:.92rem}.subnav{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.subnav a{border:1px solid var(--line);background:var(--white);border-radius:99px;padding:8px 20px;font-size:.85rem}.subnav a:hover{background:var(--sage)}.rules{margin-top:28px}.rules details{border-top:1px solid var(--line);padding:18px 0}.rules details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:20px}summary:after{content:'＋';color:var(--green)}details[open]>summary:after{content:'−'}details p{margin:15px 0 0;color:var(--muted);font-size:.93rem}.wide-photo{width:100%;height:400px;object-fit:cover;border-radius:var(--radius)}.step-list{counter-reset:steps;display:grid;gap:24px;padding:0;list-style:none}.step-list li{counter-increment:steps;display:grid;grid-template-columns:50px 1fr;gap:18px;align-items:start}.step-list li:before{content:'0' counter(steps);background:var(--sage);color:var(--green);font-family:Georgia,serif;font-style:italic;border-radius:50%;width:44px;height:44px;display:grid;place-items:center;font-size:1.2rem}.step-list h3{margin-bottom:8px}.step-list p{color:var(--muted);margin-bottom:0;font-size:.95rem}.product{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}.product .product-img{background:var(--sage);padding:24px;height:270px;display:flex;align-items:center;justify-content:center}.product .product-img img{width:100%;height:100%;object-fit:contain}.product-body{padding:32px;flex:1;display:flex;flex-direction:column}.product .price{font-size:2.2rem;font-weight:700;margin:0;line-height:1.4}.product .price small{font-size:.85rem;font-weight:400}.product .product-sub{font-size:.88rem;color:var(--muted);margin-top:8px}.product-body ul{padding-left:1.3em;font-size:.93rem}.product-body .btn{align-self:start;margin-top:auto}.product-body h3{font-size:1.5rem;margin-bottom:14px}.teacher-intro{display:grid;grid-template-columns:.35fr 1fr;gap:65px;align-items:start}.teacher-label{font-family:Georgia,serif;font-size:6rem;line-height:1;color:var(--green);letter-spacing:-.04em;margin:10px 0 20px}.teacher-role{color:var(--muted);font-size:.85rem}.teacher-copy h2{font-size:1.8rem}.teacher-copy p{font-size:1.02rem}.credentials{display:grid;grid-template-columns:1fr 1fr;gap:28px}.credentials figure{margin:0;background:var(--white);border:1px solid var(--line);border-radius:20px;padding:22px}.certificate-link{display:block;width:100%;border:0;background:white;padding:0}.certificate-link img{width:100%;height:270px;object-fit:contain}.credentials figcaption{padding-top:18px;font-size:.9rem;font-weight:700;text-align:center}.certificate-hint{font-size:.77rem;color:var(--muted);display:block;text-align:center;margin-top:6px}.modal{border:0;border-radius:18px;padding:20px;background:var(--white);color:var(--ink);max-width:min(1000px,94vw);max-height:94vh}.modal::backdrop{background:#152e25b8}.modal img{max-height:78vh;object-fit:contain}.modal-head{display:flex;justify-content:space-between;gap:20px;margin-bottom:12px;align-items:center}.modal-close{border:1px solid var(--line);border-radius:99px;background:white;padding:6px 16px;color:var(--ink)}.media-section{padding-block:20px 60px}.media-title{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:30px}.media-title h2{margin:0}.media-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.media-card{background:var(--white);border:1px solid var(--line);border-radius:20px;overflow:hidden;display:flex;flex-direction:column}.media-card .media-thumb{position:relative;aspect-ratio:16/9;background:var(--sage);display:grid;place-items:center;overflow:hidden}.media-card .media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}.media-card a:hover img{transform:scale(1.03)}.play-icon{position:absolute;background:var(--green);color:white;border:3px solid white;border-radius:50%;width:58px;height:58px;display:grid;place-items:center;font-size:22px;box-shadow:0 3px 16px #0003}.media-card .media-body{padding:24px}.media-card time,.media-date{font-size:.76rem;color:var(--muted);display:block;margin-bottom:12px}.media-card h3{font-size:1.07rem;margin-bottom:14px}.media-card p{font-size:.87rem;color:var(--muted)}.media-card .text-link{font-size:.85rem}.media-note{font-size:.8rem;color:var(--muted);margin-top:24px}.contact-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px}.contact-item{padding:18px 0;border-bottom:1px solid var(--line)}.contact-item:first-child{padding-top:0}.contact-item dt{font-size:.8rem;color:var(--muted);margin-bottom:6px}.contact-item dd{margin:0;font-size:1rem;overflow-wrap:anywhere}.map-box{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--sage);min-height:340px;display:grid;place-items:center;text-align:center;padding:30px}.map-box iframe{width:100%;height:340px;border:0}.map-box.loaded{padding:0}.form-wrap{background:white;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;min-height:420px;display:grid;place-items:center;padding:40px;text-align:center}.form-wrap.loaded{padding:0;display:block}.form-wrap iframe{width:100%;height:1380px;border:0;display:block}.trial-article{max-width:900px;margin-inline:auto}.reply-note{font-size:.95rem;margin-top:26px;text-align:center;color:var(--muted)}.reply-note a{color:var(--green);font-weight:700}.cta-strip{border-top:1px solid var(--line);margin-top:54px;padding-top:35px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta-strip p{margin:0;font-weight:700;font-size:1.15rem}.video-modal{width:min(1000px,95vw)}.video-frame{aspect-ratio:16/9;width:100%;border:0}.dialog-alternative{font-size:.85rem;margin:15px 0 0;color:var(--green)}.no-js-note{margin:20px;padding:20px;background:var(--sage)}.photo-caption{color:var(--muted);font-size:.73rem;margin-top:10px;text-align:right}.back-link{margin-bottom:24px;font-size:.85rem;color:var(--green)}.updated{font-size:.75rem;color:var(--muted)}@media(min-width:1500px){.header-inner{min-height:106px}}@media(max-width:1150px){.site-nav{gap:14px;font-size:.74rem}.brand strong{font-size:1.22rem}.header-inner{gap:15px;width:calc(100% - 40px)}.site-nav .btn{font-size:.73rem;padding-inline:14px}.hero-copy{padding:32px}.hero-slide{min-height:510px}.hero-photo{height:450px}.review-grid .screenshot{height:270px}}@media(max-width:940px){.nav-toggle{display:block}.header-inner{min-height:80px}.site-nav{display:none;position:absolute;top:80px;left:0;right:0;background:var(--white);border-bottom:1px solid var(--line);padding:24px 32px;flex-direction:column;align-items:stretch;gap:7px;font-size:.95rem;max-height:calc(100dvh - 80px);overflow:auto}.site-nav.open{display:flex}.site-nav .btn{font-size:.95rem;margin-top:10px}.site-nav>a:not(.btn){border-bottom:1px solid var(--line)}.hero-slide{grid-template-columns:45% 55%}.hero-copy h1{font-size:2rem}.hero-copy{margin-right:-70px;padding:28px}.hero-photo{height:430px}.selfstudy-slide{padding:35px;gap:26px}.selfstudy-slide h2{font-size:2rem}.grid-3{gap:16px}.course-card{padding:22px}.course-card h3{font-size:1.13rem}.split{gap:28px}.teacher-intro{gap:30px}.price-content{padding:18px}.price-row,.package-top{flex-wrap:wrap}.price-row strong,.package strong{font-size:2.2rem}.media-cards{gap:16px}.media-card .media-body{padding:18px}.homepage-contact{gap:26px;padding:30px}.level-list{grid-template-columns:1fr 1fr}}@media(max-width:680px){.wrap{width:calc(100% - 36px)}.section{padding-block:50px}.section-tight{padding-block:25px}.header-inner{width:calc(100% - 36px)}.brand strong{font-size:1.25rem}.brand span{font-size:.58rem}.hero{padding-top:20px}.hero-slide{display:flex;flex-direction:column-reverse;padding:0 0 20px;min-height:0}.hero-photo{height:300px;border-radius:20px}.hero-copy{margin:-30px 12px 0;align-self:stretch;padding:28px 24px;border-radius:20px}.hero-copy h1,.hero-copy h2{font-size:1.8rem;line-height:1.6}.hero-copy .eyebrow{font-size:.68rem}.hero-copy p{font-size:.92rem}.selfstudy-slide{display:block;padding:32px 24px;min-height:0}.selfstudy-slide h2{font-size:1.75rem}.selfstudy-slide .people{margin-top:24px;gap:12px}.person-panel{padding:17px;display:flex;align-items:center;gap:15px}.person-panel svg{flex:0 0 30px;width:30px;height:30px;margin:0}.person-panel p{font-size:.93rem}.carousel-controls{padding-top:8px}.grid-3,.grid-2,.prices,.review-grid,.split,.credentials,.homepage-contact,.teacher-intro,.contact-layout{grid-template-columns:1fr}.grid-3{gap:16px}.course-card{min-height:190px;padding:25px}.course-card h3{font-size:1.35rem}.course-card .number{margin-bottom:12px}.course-formats{font-size:.8rem}.review-panel{padding:30px 18px;border-radius:23px}.review-panel h2{font-size:1.55rem}.review-panel .review-lead{font-size:.94rem}.badges{gap:9px}.badge{font-size:.76rem;padding:5px 18px}.review-grid{gap:18px}.review-grid .screenshot{height:300px}.review-grid figure{padding:10px}.review-panel .closing{font-size:.94rem}.price-highlight{font-size:1.3rem;padding:12px 25px}.price-card h3{font-size:1.45rem}.price-content{padding:22px}.price-row strong,.package strong{font-size:2.25rem}.package-top{flex-wrap:nowrap}.package-title{font-size:.98rem}.price-tax{font-size:.77rem}.price-heading{margin-bottom:25px}.homepage-contact{padding:28px 24px}.homepage-contact h2{font-size:1.45rem}.trial-mini{padding-top:15px;border-top:1px solid #cdd7c5}.trial-mini .btn{width:100%}.page-intro{padding:35px 0 25px}.page-intro h1{font-size:2rem}.lead{font-size:1rem}.content-panel{padding:26px 22px}.level-list{gap:10px}.split>img{order:0}.teacher-intro{gap:10px}.teacher-label{font-size:3.8rem;margin-bottom:10px}.teacher-copy p{font-size:.95rem}.certificate-link img{height:230px}.media-cards{grid-template-columns:1fr}.media-title{align-items:start;flex-direction:column;gap:10px}.media-title h2{font-size:1.55rem}.media-card h3{font-size:1.1rem}.media-card .media-body{padding:23px}.media-section{padding-bottom:40px}.product .product-img{height:230px}.product-body{padding:25px}.wide-photo{height:260px}.cta-strip{align-items:start;flex-direction:column;gap:20px}.site-footer{padding:28px 0}.footer-row{gap:18px}.footer-links{gap:10px 20px;font-size:.77rem}.form-wrap{padding:25px 20px}.reply-note{font-size:.86rem}.map-box{padding:22px}.photo-caption{text-align:left}.section-heading{margin-bottom:24px}.step-list li{grid-template-columns:40px 1fr;gap:13px}.step-list li:before{width:36px;height:36px;font-size:1rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.lesson-tags{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 25px}.lesson-tags span{background:var(--sage);color:var(--green);border-radius:99px;padding:5px 18px;font-size:.85rem;font-weight:700}.single-product{max-width:740px;margin-inline:auto}.single-product .product-img{height:auto;min-height:240px;padding:28px}.single-product .product-img img{max-height:340px;object-fit:contain}.single-product .product-body{padding:32px 38px}@media(max-width:680px){.single-product .product-body{padding:25px}.single-product .product-img{padding:18px;min-height:180px}}