*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,'Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif;font-size:16px;line-height:1.9;overflow-wrap:anywhere}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:5px}a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img,svg{max-width:100%;display:block}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.45;letter-spacing:.025em}h1{font-size:clamp(36px,4.8vw,70px)}h2{font-size:clamp(28px,3.2vw,46px);margin-bottom:30px}h3{font-size:23px;margin:20px 0 16px}p+p{margin-top:20px}small{font-size:12px}p{max-width:100%}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.17em;margin-bottom:25px}.header{padding:24px 5%;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);gap:24px}.brand{display:flex;align-items:center;gap:14px;flex-shrink:0}.brand .logo{width:58px;height:34px;mix-blend-mode:multiply}.brand b{font-size:27px;letter-spacing:.12em}.desktop-nav{display:flex;align-items:center;gap:27px;font-size:13px;font-weight:600}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:48px;padding:17px 26px;background:var(--ink);color:var(--paper);font-size:14px;line-height:1.5;min-height:52px}.button:hover{background:var(--accent);color:var(--paper);text-decoration:none}.button.small{padding:13px 20px;min-height:44px}.mobile-menu{display:none}.skip{position:absolute;left:10px;top:-100px;background:var(--paper);padding:12px;z-index:10}.skip:focus{top:10px}.section{max-width:1240px;margin:auto;padding:100px 44px;border-bottom:1px solid var(--line)}.hero{padding:72px 6% 24px;position:relative;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;min-height:710px}.hero-sub{margin:28px 0 34px;font-size:15px}.hero-caption{font-size:13px;margin-top:45px}.hero-visual{min-width:0}.photo img{width:100%;height:470px;object-fit:cover}.photo figcaption{font-size:12px;margin-top:15px;display:flex;justify-content:space-between;gap:10px}.photo figcaption span{font-size:10px;opacity:.7}.hero-bottom{grid-column:1/-1;display:flex;justify-content:space-between;font-size:9px;letter-spacing:.14em;margin-top:20px}.about{display:grid;grid-template-columns:1fr 1.3fr;gap:100px}.aside-copy{font-size:20px;line-height:2.2;margin-top:65px}.about .applications{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px;font-size:12px}.applications span{border:1px solid var(--line);padding:5px 12px}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:35px}.section-head h2{margin-bottom:0}.section-head>p{font-size:14px}.service-grid,.works-grid,.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:38px}.service-grid article{background:var(--panel);padding:42px}.number{font-size:12px;letter-spacing:.12em}.label{font-size:12px;font-weight:700;margin-bottom:18px}.service-grid small{display:block;margin-top:22px}.text-link{display:block;font-size:13px;font-weight:700;margin-top:25px}.media-placeholder{background:var(--panel);aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:20px;padding:28px;color:var(--ink)}.media-placeholder>span{font-size:36px}.works-grid .eyebrow{margin-top:26px;margin-bottom:0}.works-grid p:not(.eyebrow){font-size:14px}.blog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}.blog-art{height:205px;background:var(--panel);padding:25px;font-size:27px;line-height:1.15;font-weight:700;letter-spacing:-.03em;display:flex;flex-direction:column;justify-content:space-between;margin-bottom:20px}.blog-art span{font-size:12px;font-weight:400;letter-spacing:.1em}.blog-grid h3{font-size:19px;margin:14px 0}.blog-grid article:nth-child(2) .blog-art{background:var(--soft)}.blog-grid details{font-size:12px;margin-top:15px}.operator{display:grid;grid-template-columns:1fr 1.3fr;gap:100px}.contact{padding:100px 24px;text-align:center;background:var(--soft)}.contact h2{font-size:clamp(30px,3.5vw,50px)}.contact p{font-size:14px}.contact .button{margin-top:35px}.contact details{max-width:570px;margin:24px auto 0;font-size:12px}.contact details p{font-size:12px;margin-top:14px}footer{padding:50px 6%;display:flex;gap:30px;flex-wrap:wrap;justify-content:space-between;align-items:center;font-size:11px}footer nav{display:flex;flex-wrap:wrap;gap:12px 24px;max-width:650px}.footer-brand{font-size:27px;letter-spacing:.12em;font-weight:700}.footer-brand small{display:block;font-size:9px;font-weight:400;letter-spacing:.06em}.page-heading{padding:85px max(6%,24px) 80px;border-bottom:1px solid var(--line)}.page-heading p:not(.eyebrow){margin-top:25px}.use-cases .section-head{align-items:start}.use-hint,.use-footnote{font-size:13px;margin:24px 0}.use-list details{border-top:1px solid var(--line);padding:24px 0}summary{cursor:pointer}details summary{min-height:36px}.use-case summary{display:flex;gap:20px;align-items:center}.use-title{flex:1;font-weight:700}.use-title small{display:block;font-weight:400;margin-top:5px}.use-number{font-size:12px}.use-plus{font-size:25px}.use-body{padding:24px 32px;font-size:14px}.use-body aside{margin-top:20px;border-left:2px solid var(--accent);padding-left:20px}.quality-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;margin-top:35px}.quality-list>div{border-top:1px solid var(--line);padding-top:20px}.quality-list h3{font-size:19px}.quality-list p{font-size:14px}.price-grid{margin-top:40px}.price-grid article{padding:35px;background:var(--panel)}.price-grid h3{margin-top:0}.price-grid dl{margin:0}.price-grid dl>div{padding:20px 0;border-top:1px solid var(--line)}dt{font-size:14px}dt small{display:block;font-size:11px}dd{margin:8px 0 0;font-size:26px;font-weight:700}dd small{font-weight:400;font-size:11px;margin-left:10px}.price-notes, #price>p{font-size:13px}.price-notes details{padding:20px 0;border-bottom:1px solid var(--line)}.price-notes{margin-top:25px}.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:25px}.flow-grid>div,.flow-grid>article{border-top:1px solid var(--line);padding-top:25px}.flow h3{font-size:18px}.flow p:not(.eyebrow){font-size:14px}.faq details{padding:24px 0;border-top:1px solid var(--line)}.faq details p{font-size:14px;margin-top:20px}.faq summary{font-weight:600}.faq summary span{float:right}.article-heading{max-width:1050px;margin:auto;padding:85px 40px 60px}.article-heading h1{font-size:clamp(30px,3.4vw,47px);line-height:1.6}.article-heading>p:last-child{font-size:12px;margin-top:24px}.article-layout{max-width:1200px;margin:0 auto;padding:0 40px 100px;display:grid;grid-template-columns:260px minmax(0,720px);gap:65px;align-items:start}.toc{position:sticky;top:30px;background:var(--panel);padding:22px;font-size:12px}.toc summary{font-size:14px;font-weight:700}.toc ol{padding-left:20px}.toc li{padding:5px 0}.prose{min-width:0;font-size:16px;line-height:2.1}.prose h2{font-size:27px;line-height:1.6;margin:65px 0 24px;border-top:1px solid var(--line);padding-top:30px}.prose h3{font-size:20px;margin:35px 0 18px}.prose p{margin:0 0 22px}.prose ul,.prose ol{padding-left:24px;margin:24px 0}.prose li{margin-bottom:10px}.prose a{text-decoration:underline;text-underline-offset:5px}.pro-note{background:var(--panel);border-left:3px solid var(--accent);padding:25px 30px;margin:30px 0}.pro-note p:last-child{margin-bottom:0}.table-wrap{margin:30px 0;width:100%}table{width:100%;border-collapse:collapse;font-size:13px;line-height:1.8;table-layout:fixed}th,td{text-align:left;padding:15px 12px;border:1px solid var(--line);vertical-align:top;overflow-wrap:anywhere}th{background:var(--panel)}.people{width:100%;mix-blend-mode:multiply}.wave{height:90px;width:100%;display:flex;align-items:center;gap:5px}.wave i{display:block;flex:1;height:var(--h);background:var(--accent);border-radius:20px}.audio .wave{height:65px;max-width:260px}.hero-visual>.wave{display:none}
@media(max-width:1000px){.desktop-nav{gap:14px;font-size:11px}.brand b{font-size:23px}.hero{gap:28px}.about,.operator{gap:45px}.article-layout{grid-template-columns:210px minmax(0,1fr);gap:35px}.section{padding:75px 30px}.flow-grid{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.header{padding:16px 20px}.brand .logo{width:44px;height:40px}.brand b{font-size:23px}.desktop-nav{display:none}.mobile-menu{display:block;font-size:13px}.mobile-menu>summary{padding:9px 4px}.mobile-menu nav{position:absolute;top:80px;left:20px;right:20px;z-index:5;background:var(--paper);border:1px solid var(--line);box-shadow:0 15px 35px #0002;padding:20px;display:grid;gap:15px}.hero{padding:46px 24px 24px;grid-template-columns:minmax(0,1fr);min-height:0;gap:34px}.hero h1{font-size:36px}.hero-sub{font-size:13px;line-height:1.9;margin:22px 0 26px}.hero-caption{margin-top:22px}.photo img{height:290px}.photo figcaption{font-size:10px}.hero-bottom{font-size:8px;gap:16px;align-items:center}.hero-bottom span{max-width:200px}.section{padding:65px 24px}.about,.operator{grid-template-columns:minmax(0,1fr);gap:30px}.aside-copy{margin-top:0;font-size:16px}.section-head{display:block}.section-head>p{margin-top:22px}.service-grid,.works-grid,.price-grid,.blog-grid{grid-template-columns:minmax(0,1fr);gap:35px}.service-grid article{padding:28px}.blog-art{height:210px}.blog-grid h3{font-size:21px}.contact{padding:70px 24px}.contact h2{font-size:31px}.contact p{font-size:13px}footer{padding:40px 24px;display:block}footer nav{margin:25px 0}footer>a{display:block;margin-top:16px}.page-heading{padding:55px 24px}.page-heading h1{font-size:37px}.quality-list,.flow-grid{grid-template-columns:minmax(0,1fr)}.use-body{padding:24px 0}.use-case summary{gap:12px}.use-title{font-size:15px}.price-grid article{padding:24px}dd{font-size:25px}.article-heading{padding:50px 24px 35px}.article-heading h1{font-size:29px}.article-layout{padding:0 24px 65px;grid-template-columns:minmax(0,1fr);gap:35px}.toc{position:static}.prose{font-size:16px;line-height:2.05}.prose h2{font-size:24px;margin-top:50px}.prose h3{font-size:19px}.pro-note{padding:22px}.table-wrap th,.table-wrap td{padding:10px 7px;font-size:11px}.eyebrow{font-size:10px}.hero-visual .people{max-height:300px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.wave i{animation:none!important}*{transition:none!important}}

.brand .logo{flex-shrink:0;overflow:hidden}@media(max-width:760px){.brand .logo{width:44px;height:28px}}

/* A — editorial */
:root{--paper:#f4f2ed;--ink:#262e2a;--accent:#4e6556;--panel:#e8e9e1;--soft:#e1e5dd;--line:#c4c9bf}h1,h2,.aside-copy{font-family:'Yu Mincho','Hiragino Mincho ProN',serif;font-weight:500}.hero{grid-template-columns:1.05fr 1fr;padding-top:70px;padding-bottom:30px}.hero-visual{margin-top:45px}.photo img{height:490px}.hero-copy{z-index:1}.hero h1{font-size:clamp(36px,4.4vw,65px);line-height:1.65;letter-spacing:.065em}.hero .eyebrow{padding-left:35px;border-left:1px solid var(--accent)}.service-grid article{background:transparent;padding:30px 0;border-top:1px solid var(--ink)}.service-grid{gap:70px}.blog-art{font-family:Georgia,serif;font-weight:400;font-size:36px}.contact h2{line-height:1.7}.section-head h2{line-height:1.65}@media(max-width:760px){.hero{grid-template-columns:minmax(0,1fr);padding-top:40px}.hero h1{font-size:35px}.hero-visual{margin-top:0}.photo img{height:300px}.service-grid{gap:30px}}

/* A3 — visible motion, always outside the reading surface */
.reading-track{position:fixed;inset:0 0 auto;height:4px;background:var(--line);z-index:20;pointer-events:none}
.reading-track span{display:block;height:100%;background:var(--accent);transform:scaleX(0);transform-origin:left}
body{position:relative;isolation:isolate}
.ambient-layer{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:2;color:var(--accent)}
.ambient-layer .seat-art{position:absolute;width:520px;max-width:none;left:-460px;top:25%;opacity:.34;transform:translateY(var(--ambient-y,0px))}
.ambient-layer .float-shape{position:absolute;width:100px;color:var(--accent);opacity:.32;transform:translateY(var(--float-y,0px))}
.float-1{left:-65px;top:12%}.float-2{right:-65px;top:32%}.float-3{left:-70px;top:72%}.float-4{right:-70px;top:85%}
.header,footer{background:var(--paper)}
.section,.article-layout,.article-heading,.page-heading{background:var(--paper)}
.motion-stage{position:relative;isolation:isolate}
.motion-ribbon{height:90px;position:relative;overflow:hidden;grid-column:1/-1;width:100%;margin-bottom:35px;pointer-events:none;color:var(--accent)}
.hero .motion-ribbon,.contact .motion-ribbon{height:245px}
.hero{padding-top:24px}
.motion-ribbon .seat-art{position:absolute;width:520px;max-width:none;left:50%;top:0;transform:translateX(-50%);opacity:.34}
.seat-art svg{width:100%;overflow:visible}
.chair-left,.chair-right{transform-box:fill-box;transform-origin:center bottom}
.chair-left{transform:translateX(var(--left-x,-80px)) rotate(var(--left-turn,-10deg))}
.chair-right{transform:translateX(var(--right-x,80px)) rotate(var(--right-turn,10deg))}
.boundary-wave{position:absolute;width:calc(100% + 500px);max-width:none;left:-250px;bottom:0;height:65px;opacity:.38;transform:translateX(var(--wave-x,0px)) scaleY(var(--amplitude,1));transform-origin:center}
.boundary-wave svg{width:100%;height:100%;max-width:none}
.contact{padding-top:30px}.contact .motion-ribbon{max-width:1152px;margin:0 auto 40px}
.reveal-ready{transition:opacity .7s ease,transform .7s ease}.reveal-ready:not(.revealed){opacity:0;transform:translateY(26px)}
.prose h2{position:relative;padding-top:85px}
.prose h2 .article-wave{position:absolute;top:0;left:0;right:0;height:55px;overflow:hidden;pointer-events:none;color:var(--accent)}
.prose h2 .boundary-wave{height:40px}
@media(max-width:760px){
 .ambient-layer .seat-art{width:420px;left:-410px;opacity:.3}
 .ambient-layer .float-shape{width:65px}.float-1{left:-55px}.float-2{right:-55px}.float-3{left:-57px}.float-4{right:-57px}
 .hero .motion-ribbon,.contact .motion-ribbon{height:180px}
 .motion-ribbon .seat-art{width:330px;top:5px}
 .motion-ribbon{height:65px;margin-bottom:24px}
 .boundary-wave{height:45px}
 .hero{padding-top:25px}.contact{padding-top:25px}
}
@media(prefers-reduced-motion:reduce){
 .seat-art .chair-left,.seat-art .chair-right{transform:none!important}
 .ambient-layer .seat-art{transform:none!important}
 .float-shape,.boundary-wave{transform:none!important}
 .reveal-ready{opacity:1!important;transform:none!important;transition:none!important}
 .reading-track span{transform:scaleX(1)!important}
}

.page-heading .motion-ribbon,.article-heading .motion-ribbon{height:245px}
@media(max-width:760px){.page-heading .motion-ribbon,.article-heading .motion-ribbon{height:180px}}

/* A4 (Claude Code): side floating chairs removed (本人：「横でふわふわしてる椅子はうざい」). Top band smaller so the copy sits higher. */
.ambient-layer .seat-art{display:none!important}
.hero .motion-ribbon,.page-heading .motion-ribbon,.article-heading .motion-ribbon{height:130px;margin-bottom:10px}
.hero .motion-ribbon .seat-art,.page-heading .motion-ribbon .seat-art,.article-heading .motion-ribbon .seat-art{width:300px}
.hero{padding-top:28px}
@media(max-width:760px){.hero .motion-ribbon,.page-heading .motion-ribbon,.article-heading .motion-ribbon{height:105px}.hero .motion-ribbon .seat-art,.page-heading .motion-ribbon .seat-art,.article-heading .motion-ribbon .seat-art{width:230px}}

.works-grid p.work-voice{margin-top:18px;padding-left:14px;border-left:3px solid #4e6556;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:15px;line-height:1.8}.works-grid p.work-voice small{display:block;margin-top:6px;font-family:inherit;font-size:12px;opacity:.7}

.price-included{margin-top:35px;padding:28px 30px;background:var(--panel);border-radius:10px}.price-included h3{font-size:19px;margin-bottom:18px}.incl-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.incl-label{font-size:13px;font-weight:700;color:var(--accent);margin:0 0 8px}.price-included ul{margin:0;padding-left:1.1em}.price-included li{font-size:14px;line-height:1.8}.incl-note{font-size:13px;margin:16px 0 0;opacity:.75}@media(max-width:760px){.incl-cols{grid-template-columns:minmax(0,1fr);gap:18px}.price-included{padding:22px 18px}}


/* WordPress integration (build_site_from_design.py) */
body.taidan-site{--green:var(--accent)}
.taidan-site .header .desktop-nav a[aria-current="page"]:not(.button){text-decoration:underline;text-underline-offset:6px}
.taidan-site .media-embed{aspect-ratio:16/9;background:var(--panel)}
.taidan-site .media-embed iframe{width:100%;height:100%;border:0;display:block}
.taidan-site .audio-embed iframe{width:100%;height:232px;border:0;border-radius:12px;display:block}
.taidan-site .work-link{display:inline-block;font-size:13px;font-weight:700;margin-top:14px}
.taidan-site .blog-grid a{display:block}
.taidan-site .blog-grid .blog-art.has-thumb{padding:0;overflow:hidden}
.taidan-site .blog-grid .blog-art.has-thumb img{width:100%;height:100%;object-fit:cover}
.taidan-site .journal-empty{font-size:14px}
.taidan-site .pagination{display:flex;gap:16px;justify-content:center;margin-top:50px;font-size:14px}
.taidan-site .article-meta{font-size:12px;margin-top:24px}
.taidan-site .prose img{height:auto}
.taidan-site .prose figure{margin:30px 0}
.taidan-site .prose blockquote{background:var(--panel);border-left:3px solid var(--accent);padding:25px 30px;margin:30px 0}
.taidan-site .prose blockquote p:last-child{margin-bottom:0}
.taidan-site .prose table{display:table}
.taidan-site .prose .wp-block-table{overflow-x:auto;margin:30px 0}
/* Contact Form 7 inside the design */
.taidan-site .taidan-contact-form{max-width:740px;margin:40px auto 0;text-align:left;padding:38px;background:var(--paper);border:1px solid var(--line)}
.taidan-site .taidan-contact-form .form-intro{padding-bottom:22px;border-bottom:1px solid var(--line);font-size:14px}
.taidan-site .wpcf7 label{display:block;font-size:14px;font-weight:700;margin-top:22px}
.taidan-site .wpcf7 input[type=text],.taidan-site .wpcf7 input[type=email],.taidan-site .wpcf7 input[type=tel],.taidan-site .wpcf7 input[type=url],.taidan-site .wpcf7 select,.taidan-site .wpcf7 textarea{width:100%;margin-top:8px;padding:13px 14px;border:1px solid var(--line);background:#fff;font:inherit;font-weight:400;color:var(--ink)}
.taidan-site .wpcf7 textarea{min-height:170px}
.taidan-site .wpcf7 input[type=submit]{margin-top:28px;border:0;background:var(--ink);color:var(--paper);padding:18px 36px;font:inherit;font-weight:700;cursor:pointer}
.taidan-site .wpcf7 input[type=submit]:hover{background:var(--accent)}
.taidan-site .wpcf7-list-item{margin:6px 16px 0 0;font-weight:400}
.taidan-site .wpcf7-radio{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:8px}
.taidan-site .wpcf7-radio .wpcf7-list-item{margin:0}
.taidan-site .wpcf7-radio label{display:flex;align-items:center;gap:8px;margin-top:0;font-weight:400;cursor:pointer}
.taidan-site .wpcf7 input[type=radio]{width:18px;height:18px;margin:0;accent-color:var(--accent)}
.taidan-site .wpcf7-not-valid-tip{font-size:12px}
.taidan-site .wpcf7 form .wpcf7-response-output{margin:24px 0 0;padding:14px;font-size:14px}
@media(max-width:760px){.taidan-site .taidan-contact-form{padding:24px}}