:root{--ink:#1c3029;--body:#35443f;--red:#e8452f;--line:#d7ddd8;--paper:#fff;--soft:#f5f6f2;--cream:#eeece3;--muted:#68736b}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}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:1.9;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--red);outline-offset:5px}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-feature-settings:'palt';letter-spacing:-.035em}h2{font-size:clamp(30px,3.05vw,46px);font-weight:650;line-height:1.65}h3{font-size:20px;line-height:1.8}p{overflow-wrap:anywhere}.wrap{width:min(1200px,calc(100% - 112px));margin-inline:auto}.section{padding-block:112px}.section-label{display:flex;align-items:center;gap:13px;font-size:14px;font-weight:650;letter-spacing:.05em;margin-bottom:35px}.section-label:before{content:'';width:7px;height:7px;border-radius:50%;background:var(--red);flex-shrink:0}.body-copy{font-size:16px;line-height:2.1;color:var(--body)}.body-copy p+p{margin-top:22px}.skip-link{position:absolute;left:16px;top:-100px;padding:8px 16px;background:white;z-index:100}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(28,48,41,.08)}.header-inner{width:min(1440px,calc(100% - 88px));margin:auto;min-height:92px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:block;flex-shrink:0}.brand img{width:210px;height:auto}#site-nav{display:flex;align-items:center;gap:30px;font-size:13px;font-weight:600}#site-nav a{white-space:nowrap}#site-nav a:not(.nav-contact):hover{color:var(--red)}.nav-contact{border:1px solid var(--line);padding:13px 22px;border-radius:30px;display:flex;gap:27px;align-items:center}.nav-contact span{color:var(--red)}.menu-toggle{display:none}.hero{position:relative;min-height:min(710px,calc(100svh - 92px));isolation:isolate;overflow:hidden;background:#f5f7f7}.hero-image{position:absolute;inset:0;z-index:-1;width:100%;height:100%;object-fit:cover;object-position:center}.hero-content{width:min(1440px,calc(100% - 112px));margin:auto;padding-top:clamp(100px,10.5vw,165px);padding-bottom:100px}.hero h1{font-size:clamp(38px,4.1vw,64px);font-weight:700;line-height:1.5;letter-spacing:-.055em}.hero h1 span{display:block}.hero-content>p{font-size:15px;line-height:2;margin-top:32px}.text-link{display:inline-flex;align-items:center;gap:58px;font-size:13px;font-weight:650;border-bottom:1px solid #84938c;padding:12px 0;margin-top:32px}.text-link span{font-size:20px;color:var(--red)}.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px}.about .body-copy{padding-top:4px}.perspectives{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;margin-top:75px}.perspectives>div{padding:23px 0 29px;border-top:1px solid var(--line)}.perspective-label{font-size:13px;color:var(--muted);margin-bottom:9px}.perspectives h3{font-size:21px;font-weight:500}.signal-definition{border-top:1px solid var(--line);display:grid;grid-template-columns:.65fr 1.8fr;gap:40px;align-items:center;padding-top:37px}.signal-word{font-family:Georgia,'Times New Roman',serif;font-size:80px;line-height:1.1;letter-spacing:-.07em}.signal-word span{color:var(--red)}.signal-definition h3{font-size:18px;font-weight:600;line-height:1.9;letter-spacing:0}.signal-definition div>p{font-size:14px;color:var(--muted);margin-top:10px}.work-photos{width:min(1440px,calc(100% - 80px));margin:67px auto 0}.work-photos img{width:100%;height:auto;aspect-ratio:2.1;object-fit:cover;object-position:center top}.work-photos figcaption{text-align:right;color:var(--muted);font-size:10px;margin-top:7px}.about{padding-bottom:90px}.business{background:var(--soft);padding-bottom:100px}.business-grid{display:grid;grid-template-columns:1fr 1fr;gap:65px;margin-top:60px}.business-grid article{border-top:1px solid var(--ink);padding-top:26px}.business-header{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:35px}.business-header h3{font-size:17px;letter-spacing:0;font-weight:500}.status{font-size:11px;padding:2px 11px;border:1px solid #a5afa8;border-radius:20px;white-space:nowrap}.business-lead{font-size:23px;font-weight:600;line-height:1.8;margin:32px 0 13px;letter-spacing:-.03em}.business-grid article>p:last-child{font-size:16px;line-height:2;color:var(--body)}.consultations{background:var(--soft);padding:0 0 105px}.consultation-intro{border-top:1px solid var(--line);padding-top:45px;display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:start}.consultation-intro h2{font-size:25px}.consultation-intro p{font-size:14px;line-height:2;color:var(--muted)}.consultation-list{list-style:none;padding:0;margin:35px 0 0;display:grid;grid-template-columns:1fr 1fr;column-gap:65px}.consultation-list li{display:flex;align-items:flex-start;gap:22px;border-top:1px solid var(--line);padding:25px 0}.consultation-list li span{color:var(--red);font-family:Georgia,serif;font-size:14px;padding-top:3px}.consultation-list li p{font-size:16px}.future{background:var(--ink);color:white;padding-block:105px}.future-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:85px;align-items:center}.future .section-label{color:#dce1dc}.future h2{font-size:clamp(29px,3vw,44px)}.future .body-copy{color:#e0e7e1}.representative{background:var(--cream)}.representative-grid{display:grid;grid-template-columns:.76fr 1.24fr;gap:90px;align-items:center}.portrait img{width:100%;height:auto;max-height:610px;object-fit:contain;object-position:top center}.representative-copy .body-copy{margin-top:28px;font-size:15px}.representative h2{font-size:clamp(30px,3vw,43px)}.name{display:flex;align-items:baseline;gap:25px;font-size:29px;border-top:1px solid #c7ccbf;padding-top:24px;margin-top:34px}.name span{font-size:13px}.company-details{display:grid;grid-template-columns:.76fr 1.24fr;gap:90px;margin-top:85px;padding-top:45px;border-top:1px solid #c7ccbf}.company-details h3{font-size:20px}.company-details dl{margin:0}.company-details dl>div{display:grid;grid-template-columns:120px 1fr;gap:20px;border-bottom:1px solid #d4d7cd;padding:15px 0;font-size:14px}.company-details dl>div:first-child{padding-top:0}.company-details dt{color:var(--muted)}.company-details dd{margin:0}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px}.contact h2{font-size:clamp(30px,2.8vw,41px)}.contact-intro>p:last-child{margin-top:22px;font-size:14px}.form-row{margin-bottom:24px}.form-row label{display:flex;align-items:center;gap:15px;font-size:14px;font-weight:600;margin-bottom:8px}.form-row label span{font-size:10px;font-weight:400;color:#9a4538}.form-row input,.form-row textarea{width:100%;padding:12px 14px;background:#fafbf9;border:1px solid #c9d0ca;border-radius:2px;color:var(--ink);font-size:16px}.form-row textarea{resize:vertical;min-height:150px}.consent{display:flex;align-items:center;gap:12px;font-size:13px;padding:5px 0 24px}.consent input{width:19px;height:19px;accent-color:var(--ink);flex-shrink:0}.consent a{text-decoration:underline;text-underline-offset:3px}.submit-button{display:flex;align-items:center;justify-content:space-between;gap:45px;width:100%;border:1px solid var(--ink);background:var(--ink);color:white;padding:18px 24px;font-size:15px;transition:background .2s}.submit-button:hover{background:#2e4b3e}.submit-button:disabled{opacity:.6}#form-status{font-size:14px;margin-top:16px}#form-status.error{color:#a62c20}#form-status.success{color:#245b37}.honeypot{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.site-footer{padding-block:45px 25px;border-top:1px solid var(--line)}.footer-top,.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-top>a:last-child{font-size:12px}.footer-bottom{margin-top:36px;font-size:11px;color:var(--muted)}.footer-bottom small{font-size:11px}@media(min-width:1700px){.hero{min-height:770px}.hero-content{padding-top:170px}.hero-image{object-position:center 53%}}@media(max-width:1100px){.wrap{width:calc(100% - 72px)}.header-inner{width:calc(100% - 54px)}.brand img{width:180px}#site-nav{gap:20px;font-size:12px}.intro-grid,.future-grid,.representative-grid,.company-details,.contact-grid{gap:48px}.hero-content{width:calc(100% - 80px)}.hero{min-height:620px}.hero h1{font-size:46px}.hero-image{object-position:45% center}.business-grid,.consultation-intro,.consultation-list{gap:36px}.business-lead{font-size:20px}.perspectives{gap:22px}.perspectives h3{font-size:18px}.signal-definition{grid-template-columns:.65fr 1.6fr}.signal-word{font-size:70px}}@media(max-width:760px){html{scroll-padding-top:82px}.wrap{width:calc(100% - 40px)}.section{padding-block:70px}.header-inner{width:calc(100% - 40px);min-height:76px}.brand img{width:174px}.menu-toggle{display:flex;align-items:center;gap:12px;background:none;border:0;padding:12px 0 12px 12px;color:var(--ink);font-size:12px}.menu-toggle i{width:22px;height:10px;border-top:1px solid currentColor;border-bottom:1px solid currentColor}.menu-toggle[aria-expanded=true] i{height:1px;border-bottom:0}#site-nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:20px;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 10px 20px #1c302908}#site-nav.open{display:flex}#site-nav a{padding:14px 8px;font-size:14px}.nav-contact{border:0;border-top:1px solid var(--line);border-radius:0;justify-content:space-between}.hero{min-height:650px}.hero-content{width:calc(100% - 40px);padding-top:58px;padding-bottom:280px}.hero h1{font-size:clamp(28px,6.8vw,43px);line-height:1.6;letter-spacing:-.055em}.hero-image{object-fit:cover;width:145%;max-width:none;height:66%;top:auto;bottom:0;left:-45%;object-position:right bottom}.hero:after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(#f5f7f7 0%,#f5f7f7 30%,#f5f7f700 60%);pointer-events:none}.hero-content>p{font-size:13px;margin-top:22px}.text-link{margin-top:18px}.section-label{font-size:12px;margin-bottom:24px}.intro-grid,.future-grid,.representative-grid,.company-details,.contact-grid{grid-template-columns:1fr;gap:28px}.desktop-break{display:none}h2{font-size:28px;line-height:1.7}.body-copy{font-size:14px;line-height:2}.body-copy p+p{margin-top:17px}.perspectives{margin-top:38px;grid-template-columns:1fr;gap:0}.perspectives>div{display:grid;grid-template-columns:100px 1fr;align-items:baseline;gap:10px;padding:17px 0}.perspective-label{font-size:12px;margin:0}.perspectives h3{font-size:17px}.signal-definition{grid-template-columns:1fr;gap:20px;padding-top:28px}.signal-word{font-size:60px}.signal-definition h3{font-size:16px}.signal-definition div>p{font-size:13px}.work-photos{width:calc(100% - 40px);margin-top:35px}.work-photos img{aspect-ratio:1.5;object-fit:contain}.work-photos figcaption{font-size:9px}.business-grid{grid-template-columns:1fr;gap:38px;margin-top:36px}.business-header h3{font-size:16px}.business-lead{font-size:20px;margin-top:22px}.business-grid article>p:last-child{font-size:14px}.consultations{padding-bottom:65px}.consultation-intro{grid-template-columns:1fr;gap:15px;padding-top:30px}.consultation-intro h2{font-size:23px}.consultation-intro p{font-size:13px}.consultation-list{grid-template-columns:1fr;gap:0;margin-top:24px}.consultation-list li{padding:19px 0;gap:17px}.consultation-list li p{font-size:14px}.future h2{font-size:29px}.future-grid{gap:30px}.representative-grid{gap:35px}.portrait{width:min(100%,380px);margin:auto}.portrait img{max-height:none}.representative h2{font-size:28px}.representative-copy .body-copy{font-size:14px;margin-top:20px}.name{font-size:25px}.company-details{margin-top:45px;padding-top:30px;gap:22px}.company-details dl>div{grid-template-columns:80px 1fr;gap:15px;font-size:13px}.contact-grid{gap:36px}.contact h2{font-size:28px}.contact-intro>p:last-child{margin-top:15px}.form-row{margin-bottom:20px}.footer-top{align-items:flex-start}.footer-top .brand img{width:160px}.footer-bottom{align-items:flex-start}.site-footer{padding-block:32px 22px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
/* 白い空間と透明な面を、各章へつなぐ仕上げ */
:root{--soft:#f5f7f8;--cream:#f8f9f9;--line:#d8dfe1;--body:#3c494a;--muted:#677477}
.about{background:linear-gradient(180deg,#fff 75%,#fafbfc)}
.perspectives>div{border-top-color:#cdd7db}
.signal-definition{border-top-color:#cdd7db}
.business{background:linear-gradient(135deg,#f2f5f7 0%,#fff 70%)}
.business-grid article{border-top:1px solid #aebec4;position:relative}
.business-grid article:before{content:'';position:absolute;top:-1px;left:0;width:42px;height:1px;background:var(--red)}
.consultations{background:linear-gradient(180deg,#fff,#f8fafb)}
.future{position:relative;isolation:isolate;background:linear-gradient(115deg,#f1f5f7 0%,#fbfcfd 48%,#edf3f6 100%);color:var(--ink);border-block:1px solid #e3e9ec}
.future:before{content:'';position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(114deg,transparent 0%,transparent 46%,#ffffffa6 46.15%,#ffffff35 66%,transparent 66.15%)}
.future .section-label{color:var(--body)}
.future .body-copy{color:var(--body)}
.representative{background:linear-gradient(180deg,#fff 0%,#fff 65%,#f9fbfb 100%)}
.portrait{background:#fff}
.portrait img{mix-blend-mode:multiply}
.name,.company-details{border-top-color:#d4dfe2}
.company-details dl>div{border-bottom-color:#dce4e6}
.contact{background:linear-gradient(135deg,#f7f9fa,#fff 65%)}
.form-row input,.form-row textarea{background:#ffffffd9;border-color:#cbd5d9}
.site-footer{background:#fff}

/* 代表写真は頭部を残し、胸元までのコンパクトな比率にする */
.representative-grid{grid-template-columns:300px minmax(0,1fr);align-items:start;gap:80px}
.portrait{width:300px;max-width:100%;margin:0}
.portrait img{width:100%;height:350px;max-height:350px;object-fit:cover;object-position:center top}
@media(max-width:1100px){.representative-grid{grid-template-columns:280px minmax(0,1fr);gap:44px}.portrait{width:280px}}
@media(max-width:760px){.representative-grid{grid-template-columns:1fr;gap:30px}.portrait{width:250px;margin:0 auto}.portrait img{height:280px;max-height:280px;object-fit:cover;object-position:center top}}

.contact-topics{margin:0 0 24px;padding:0;border:0;min-width:0}.contact-topics legend{font-size:14px;font-weight:600;margin-bottom:12px}.contact-topics legend>span{font-size:10px;font-weight:400;color:#9a4538;margin-left:12px}.contact-topics label{display:flex;align-items:flex-start;gap:12px;padding:9px 0;font-size:14px;cursor:pointer}.contact-topics input{width:19px;height:19px;margin:4px 0 0;accent-color:var(--ink);flex-shrink:0}

/* Representative message refinement */
.representative-copy .body-copy{margin-bottom:1.2em}.representative-copy .name{border:0;padding-top:12px;margin-top:24px}.representative-copy .name strong{font-family:"YuKyokasho","Yu Mincho","Hiragino Mincho ProN",serif;font-weight:500;font-size:36px;letter-spacing:.12em}.representative-copy .name span{font-size:13px}

.name .signature{display:block;width:260px;max-width:100%;height:auto;margin-top:4px}.representative-copy .name{display:block}

.name .signature{width:430px;max-width:100%;height:auto}

/* Hero business description */
.hero-content>p.hero-description{font-size:clamp(22px,2vw,28px);font-weight:500;line-height:1.75;letter-spacing:.025em;margin-top:36px;margin-bottom:0}
@media(max-width:760px){.hero-content>p.hero-description{font-size:clamp(17px,4.4vw,21px);line-height:1.8;letter-spacing:0;margin-top:28px}}

.form-row select{display:block;width:100%;min-height:54px;padding:12px 42px 12px 14px;border:1px solid #cbd1ce;border-radius:0;background-color:#fff;color:var(--ink);font:inherit;font-size:16px;line-height:1.5}.form-row select:focus-visible{outline:2px solid #d94332;outline-offset:2px}

.representative h2.section-label{font-size:14px;line-height:1.6;letter-spacing:.08em;margin:0 0 28px;font-weight:700}.representative-copy h2.section-label+.body-copy{margin-top:0}

.representative-copy .name{margin-top:0;padding-top:0}.representative-copy .name .signature{margin-top:-14px}

/* Representative message: integrated AI perspective */
.representative-copy .message-title{font-size:clamp(26px,2.5vw,36px);line-height:1.6;letter-spacing:.01em;margin:0 0 36px}.representative-copy .section-label{margin-bottom:20px}.representative-copy .message-title+.body-copy{margin-top:0}
@media(max-width:760px){.representative-copy .message-title{font-size:26px;line-height:1.55;margin-bottom:26px}}

.consultation-note{margin:32px 0 0;color:var(--body);font-size:16px;line-height:2;text-align:center}@media(max-width:760px){.consultation-note{font-size:14px;text-align:left;margin-top:24px}.consultation-note br{display:none}}

/* Keep the headline above the ribbon and the description below it.
   The image itself is unchanged; the hero height follows its composition. */
@media(min-width:761px){
  .hero{height:clamp(560px,44vw,1000px);min-height:0}
  .hero-content{position:relative;height:100%;padding-top:clamp(64px,6vw,120px);padding-bottom:0}
  .hero h1{font-size:clamp(32px,3.4vw,64px);line-height:1.5}
  .hero-content>p.hero-description{position:absolute;top:62%;margin:0;font-size:clamp(20px,1.7vw,28px)}
}
@media(max-width:760px){
  .hero h1{font-size:clamp(25px,6.6vw,43px)}
  .hero h1 span{white-space:nowrap}
}
@media(max-width:360px){
  .hero-content>p.hero-description{font-size:15px}
  .menu-toggle{white-space:nowrap;flex-shrink:0}
}

#about-title span{display:block}
@media(min-width:761px){.intro-grid{grid-template-columns:1.15fr 1fr;gap:clamp(32px,4vw,64px)}#about-title{font-size:clamp(25px,2.8vw,42px)}#about-title span{white-space:nowrap}}

/* A continuous thought, framed with quiet rules. */
.signal-intro{margin:64px 0 0;padding:30px 0;border-top:1px solid #cdd7db;border-bottom:1px solid #cdd7db;font-size:clamp(18px,1.65vw,22px);line-height:1.9;font-weight:500;letter-spacing:.01em}
.signal-intro + .signal-definition{margin-top:0;border-top:0;padding-top:36px}
@media(max-width:760px){.signal-intro{margin-top:38px;padding:23px 0;font-size:18px;line-height:2}.signal-intro + .signal-definition{padding-top:28px}}

/* Hero service statement: one coherent two-line block. */
.hero-content>p.hero-description{letter-spacing:-.02em;line-height:1.65;font-weight:650}
.hero-description-purpose,.hero-description-service{display:block;font-size:1em;font-weight:inherit;letter-spacing:inherit;line-height:inherit}
.hero-description-service{margin-top:3px}