:root{--paper:#f5f8fc;--ink:#183457;--muted:#506581;--line:#ccd8e8;--green:#245da1;--gold:#32659e;--white:#ffffff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:108px}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Yu Gothic','Meiryo',sans-serif;font-size:17px;line-height:1.9}a{color:inherit;text-underline-offset:5px}button,input,textarea{font:inherit}button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #347ac3;outline-offset:5px}p{margin:0 0 22px}h1,h2,h3{line-height:1.45;letter-spacing:.015em;margin:0 0 24px;text-wrap:pretty}h1{font-size:clamp(36px,4vw,58px);font-weight:650;letter-spacing:-.025em}h2{font-size:clamp(29px,3vw,42px);font-weight:600}h3{font-size:23px;font-weight:650}img,video{max-width:100%;display:block}section[id]{scroll-margin-top:108px}.wrap{max-width:1200px;margin:auto;padding-left:42px;padding-right:42px}.section{padding-top:100px;padding-bottom:100px}.eyebrow{font-size:12px;letter-spacing:.18em;font-weight:700;color:var(--gold);margin-bottom:22px}.small{font-size:14px;color:var(--muted);line-height:1.85}.site-header{position:sticky;top:0;background:rgba(245,248,252,.97);z-index:10;min-height:92px;display:flex;align-items:center;justify-content:space-between;padding:16px max(32px,calc((100vw - 1116px)/2));border-bottom:1px solid var(--line);gap:24px}.brand{font-family:Georgia,serif;font-style:italic;font-size:40px;text-decoration:none;line-height:1}.brand span{font-family:'Yu Gothic','Meiryo',sans-serif;font-size:10px;letter-spacing:.12em;display:block;margin-top:9px;font-style:normal}.site-header nav{display:flex;align-items:center;gap:29px;font-size:14px;font-weight:700}.site-header nav a{text-decoration:none;padding:8px 0}.site-header nav a:hover{color:var(--gold)}.site-header nav .nav-contact{border:1px solid var(--ink);padding:9px 19px}.menu-button{display:none}.skip{position:fixed;left:16px;top:-100px;background:white;padding:8px;z-index:30}.skip:focus{top:10px}.hero{display:grid;grid-template-columns:1.2fr 1fr;align-items:center;min-height:670px;gap:28px;padding-top:70px;padding-bottom:60px}.intro{font-size:18px;line-height:2;color:var(--muted);margin-bottom:32px}.hero-note{font-family:'Yu Mincho',serif;font-size:15px;color:var(--muted);margin-top:35px}.thread-art{background:#e4e6dc;aspect-ratio:1;position:relative;border-radius:50% 50% 4px 50%;padding:10px}.thread-art svg{width:100%;height:auto}.thread-art text{fill:var(--green);font-size:15px;letter-spacing:3px}.thread-art p{position:absolute;bottom:8px;right:15px;font-size:10px;letter-spacing:.18em}.actions{display:flex;flex-wrap:wrap;gap:12px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;background:var(--green);color:white;padding:14px 23px;min-height:54px;text-decoration:none;font-size:15px;font-weight:700;border:1px solid var(--green);line-height:1.6;transition:background .15s}.button:hover{background:#194779}.button.outline{background:transparent;color:var(--green)}.button.outline:hover{background:#e4edf8}.button.light{background:var(--paper);color:var(--green);border-color:var(--paper)}.section-heading{max-width:730px;margin-bottom:48px}.section-heading>p:last-child{color:var(--muted)}#services{border-top:1px solid var(--line)}.service-row{display:grid;grid-template-columns:60px 240px 1fr;gap:26px;padding:36px 0;border-top:1px solid var(--line)}.service-row h3{padding-top:5px}.service-row p{margin-bottom:15px}.number{font:italic 30px Georgia,serif;color:var(--gold)}.inline-list{list-style:none;display:flex;flex-wrap:wrap;gap:8px 16px;padding:0;margin:15px 0;color:var(--muted);font-size:14px}.inline-list li:before{content:'・';color:var(--gold)}.text-link{display:inline-block;font-size:15px;font-weight:700;margin-top:10px}.study-feature{background:var(--green);color:var(--paper);padding:70px 0}.feature-grid{display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:75px}.study-feature .eyebrow{color:#ddc9a5}.feature-grid>div>p:not(.eyebrow){max-width:550px;margin-bottom:30px}.status{font:600 12px 'Yu Gothic',sans-serif;letter-spacing:.08em;display:inline-block;border:1px solid currentColor;padding:3px 10px;margin-left:8px}.video-preview{position:relative;width:240px;justify-self:center;text-decoration:none;border:1px solid #9cae9f;padding:10px;background:var(--paper);box-shadow:15px 15px 0 #3e6360}.video-preview img{width:100%;height:335px;object-fit:cover;object-position:top}.video-preview>span{display:flex;justify-content:space-between;color:var(--green);font-size:14px;padding:12px 5px 4px}.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px 0;gap:25px}.stats>div{border-right:1px solid var(--line);padding-right:20px}.stats>div:last-child{border-right:0}.stats strong{font:52px Georgia,serif}.stats strong span{font:16px 'Yu Gothic',sans-serif;margin-left:6px}.stats p{font-size:14px;color:var(--muted);margin:10px 0 0}.voices{margin-top:60px;display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.voices>h3{grid-column:1/-1;margin-bottom:0}.voices blockquote{border-top:2px solid #adc2dd;margin:0;padding-top:24px;font-size:16px}.voices cite{font-style:normal;font-size:13px;color:var(--muted)}.about{background:#eaf0f8}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}.serif-quote{font-family:'Yu Mincho',serif;font-size:20px;margin-top:35px}details{margin-top:28px;border-top:1px solid #b8cbe1;border-bottom:1px solid #b8cbe1}summary{cursor:pointer;font-weight:700;padding:20px 0;font-size:16px}details .container{padding-bottom:24px}details h3{font-size:19px;margin-top:22px}details p,details blockquote{font-size:15px}details blockquote{margin:20px 0;padding-left:18px;border-left:2px solid var(--gold)}.story-quote>p{font-size:13px}.company-section{display:grid;grid-template-columns:1fr 1.8fr;gap:70px}.company-table{border-collapse:collapse;width:100%;font-size:16px}.company-table th,.company-table td{padding:19px 0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.company-table th{font-weight:600;width:115px;padding-right:20px}.contact{background:#e2ecf8}.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px}.contact aside{border-top:1px solid #b8cbe1;margin-top:35px;padding-top:25px}.contact aside h3{font-size:18px;margin-bottom:12px}.contact aside p{font-size:15px;margin-bottom:0}.contact-form label{display:block;font-size:15px;font-weight:700;margin-bottom:7px}.form-group{margin-bottom:20px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}input,textarea{display:block;background:var(--white);border:1px solid #9eaea4;border-radius:0;width:100%;padding:12px;color:var(--ink);font-size:16px}textarea{resize:vertical;min-height:160px}.required{color:#855435}.contact-note{font-size:13px;color:var(--muted)}.submit-btn{background:var(--green);color:white;border:0;padding:14px 38px;font-weight:700;cursor:pointer;font-size:16px}.footer-inner{max-width:1200px;margin:auto;padding:45px 42px;display:flex;justify-content:space-between;align-items:flex-start;gap:30px}.footer-inner>div{display:flex;flex-direction:column;gap:12px;font-size:13px}.footer-inner small{font-size:11px;color:var(--muted)}.breadcrumb{display:block;font-size:13px;color:var(--muted);margin-bottom:40px;text-decoration:none}.study-hero{padding-top:35px;padding-bottom:85px;border-bottom:1px solid var(--line)}.study-hero h1{max-width:900px;font-size:clamp(38px,5vw,65px)}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:50px}.two-columns article{padding-top:26px;border-top:1px solid var(--line)}.two-columns h3{margin-top:15px}.audience-note{margin-top:25px;font-size:15px;color:var(--muted)}.sample-section{background:#eaf0f8;padding:75px 0}.sample-grid{display:grid;grid-template-columns:1fr .85fr;gap:80px;align-items:center}.sample-grid video{width:360px;height:auto;justify-self:center;box-shadow:0 12px 40px #18345714;background:#f4f1e9}.sample-grid p{max-width:510px}.lesson-list{list-style:none;padding:0;margin:0}.lesson-list li{display:grid;grid-template-columns:65px 1fr;gap:25px;padding:28px 0;border-top:1px solid var(--line)}.lesson-list li>span{font:italic 28px Georgia,serif;color:var(--gold)}.lesson-list p{max-width:760px;margin-bottom:0}.lesson-list h3{margin-bottom:12px}.curriculum>.small{margin-top:26px}.notice-section{padding:80px 0;background:#e1e7db;text-align:center}.narrow{max-width:820px}.notice-section h2{margin-top:20px}.notice-section .small{margin-top:22px;margin-bottom:0}.notice-section .status{margin-left:0}.notice-section .eyebrow{margin-bottom:15px}
@media(max-width:1000px){.site-header{padding:16px 25px}.site-header nav{gap:17px;font-size:13px}.hero{min-height:580px}.service-row{grid-template-columns:45px 190px 1fr;gap:20px}.contact-grid{gap:35px}.feature-grid,.sample-grid{gap:40px}.footer-inner{flex-wrap:wrap}.hero .actions{flex-direction:column;align-items:flex-start}}
@media(max-width:720px){body{font-size:16px;line-height:1.95}.wrap{padding-left:24px;padding-right:24px}.section{padding-top:60px;padding-bottom:60px}.site-header{min-height:78px;padding:13px 24px}.brand{font-size:34px}.brand span{font-size:9px}.menu-button{display:block;background:transparent;border:1px solid #718bab;padding:9px 13px;font-size:13px;color:var(--ink);min-height:44px}.site-header nav{display:none;position:absolute;top:100%;left:0;right:0;padding:20px 24px 28px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:8px;font-size:16px}.site-header nav.open{display:flex}.site-header nav a{padding:12px 0}.site-header nav .nav-contact{padding:12px;margin-top:8px}.hero{grid-template-columns:1fr;min-height:0;gap:30px;padding-top:48px;padding-bottom:50px}.hero h1{font-size:35px}.intro{font-size:16px;line-height:1.95}.hero .actions{align-items:stretch}.button{font-size:15px;padding:14px 18px}.hero-note{margin-top:26px;font-size:14px}.thread-art{width:230px;justify-self:center}.thread-art p{font-size:8px}.hero .eyebrow{margin-bottom:18px}.desktop{display:none}.section-heading{margin-bottom:32px}h2{font-size:29px}h3{font-size:21px}.service-row{grid-template-columns:35px 1fr;gap:10px 16px;padding:27px 0}.service-row>div{grid-column:2}.service-row h3{margin-bottom:8px}.inline-list{display:block;font-size:14px}.inline-list li{margin-bottom:4px}.feature-grid,.about-grid,.contact-grid,.company-section,.sample-grid,.two-columns{grid-template-columns:1fr;gap:30px}.study-feature{padding:55px 0}.feature-grid .button{width:100%}.video-preview{width:230px;margin:15px auto}.stats{grid-template-columns:1fr 1fr;gap:24px 16px}.stats>div:nth-child(2){border-right:0}.stats strong{font-size:44px}.stats p{font-size:12px}.voices{grid-template-columns:1fr;gap:28px;margin-top:45px}.voices blockquote{font-size:16px}.voices blockquote p{margin-bottom:12px}.serif-quote{font-size:18px;margin-top:25px}.company-table{font-size:14px}.company-table th{width:90px;padding-right:12px}.form-row{grid-template-columns:1fr;gap:0}.submit-btn{width:100%}.footer-inner{padding:35px 24px;flex-direction:column;gap:25px}.study-hero{padding-top:25px;padding-bottom:55px}.study-hero h1{font-size:36px}.study-hero .button{width:100%}.study-hero .status{margin-left:0;margin-top:10px}.sample-section{padding:55px 0}.sample-grid video{width:100%;max-width:360px}.two-columns{gap:28px}.lesson-list li{grid-template-columns:32px 1fr;gap:16px}.lesson-list h3{font-size:20px}.notice-section{padding:55px 0}.notice-section .button{width:100%}html{scroll-padding-top:94px}section[id]{scroll-margin-top:94px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.phrase{display:inline-block}

.dm-contact{border-top:2px solid #8cafd4;padding-top:25px}.dm-contact ul{padding-left:1.3em;margin:0 0 20px}.dm-contact>p{font-size:15px}.dm-contact .dm-handle{margin-top:15px;font-size:14px}.dm-contact .button{width:100%;max-width:390px}

.thread-art.thread-photo{padding:0;background:transparent;border-radius:3px;overflow:hidden}.thread-photo img{width:100%;height:100%;object-fit:contain}@media(max-width:720px){.thread-art.thread-photo{width:min(100%,320px)}}

/* Text-led opening: no hero image. */
.hero{display:block;min-height:0;padding-top:82px;padding-bottom:80px}.hero-copy{max-width:850px}.hero h1{font-size:clamp(36px,4.6vw,62px)}.hero .intro{max-width:720px}.hero .actions{flex-direction:row;align-items:center}.hero-note{margin-bottom:0}@media(max-width:720px){.hero{padding-top:46px;padding-bottom:48px}.hero h1{font-size:35px}.hero .actions{flex-direction:column;align-items:stretch}}

/* Corporate site only: preserve rhythm after removing study promotion. */
#expertise{border-top:1px solid var(--line)}.voices{grid-template-columns:repeat(2,minmax(0,1fr))}@media(max-width:720px){.voices{grid-template-columns:1fr}}