/* YOSUKA — editorial layout and diagrams. */
:root{--section-y:clamp(76px,8vw,124px);--maxw:1240px;--text-light:#747474}
section{isolation:isolate}
section>.wrap{position:relative;z-index:1}
h2{letter-spacing:-.045em!important}
h2::after{display:none}
.eyebrow{font-size:.72rem;letter-spacing:.12em}
.lead{max-width:760px;font-size:1rem!important}
.btn-primary,.mobile-cta{background:var(--sun-dark-red)}
.btn-primary{font-size:1rem;min-height:56px;padding:16px 28px}
.btn-primary .arrow{margin-left:24px}
.nav-inner{padding-top:18px;padding-bottom:18px}
.nav-cta{font-size:.83rem}
.hero{padding:92px 0 44px;background:#f7f7f7}
.hero::before{height:100%;width:47%;left:auto;background:linear-gradient(90deg,transparent,rgba(255,255,255,.72));z-index:-1}
.hero-word{position:absolute;top:12px;left:24px;color:#e9e9e9;font:700 clamp(42px,7.3vw,118px)/1 'Eina03',sans-serif;letter-spacing:-.05em;white-space:nowrap;pointer-events:none}
.hero-grid{grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.hero h1{font-size:clamp(34px,3.8vw,54px);line-height:1.32;letter-spacing:-.05em}
.hero .eyebrow{max-width:480px;line-height:1.8;font-size:.72rem;margin-bottom:28px;letter-spacing:.025em;text-transform:none}
.hero-lead{font-size:1.06rem;line-height:2;margin-top:27px}
.hero-support{font-size:.78rem;color:#666;margin-top:15px;line-height:1.9}
.hero-cta{margin-top:28px}
.hero .sub-links{margin-top:17px}
.hero .sub-link.outline{background:transparent;border:0;border-bottom:1px solid #aaa;color:#444;padding:0 0 5px;font-size:.82rem}
.hero .sub-link.outline:hover{color:var(--sun-dark-red);border-color:currentColor}
.hero-visual{width:100%;gap:0;padding:16px 0}
.hero-map{width:100%;height:auto;display:block;overflow:visible}
.visual-caption,.visual-foot{display:flex;justify-content:space-between;gap:12px;width:100%;font:600 9px/1.5 'Eina03',sans-serif;letter-spacing:.12em;color:#777;padding:12px 2px;border-top:1px solid #d7d7d7}
.visual-foot{font-family:var(--f-jp);letter-spacing:.04em;font-size:10px;padding-bottom:0}
.summary{gap:0;margin-top:54px;border-top:1px solid #d4d4d4}
.summary-card{border:0;background:transparent;padding:30px 28px 0;overflow:visible}
.summary-card:first-child{padding-left:0}
.summary-card:last-child{padding-right:0}
.summary-card+.summary-card{border-left:1px solid #d4d4d4}
.summary-card .num{position:static;display:block;font-size:.8rem;color:var(--sun-dark-red);margin-bottom:16px;letter-spacing:.12em}
.summary-card h3{font-size:1.06rem}
.summary-card p{font-size:.82rem;line-height:1.9;max-width:350px}
.section-marker{display:flex;align-items:center;gap:14px;margin-bottom:36px;font:600 10px/1 'Eina03',sans-serif;letter-spacing:.16em;color:#888}
.section-marker span:first-child{color:var(--sun-dark-red);border:1px solid #d5d5d5;width:35px;height:35px;display:grid;place-items:center;letter-spacing:0}
.section-marker::after{content:'';height:1px;background:#ddd;flex:1;margin-left:16px}
#problem{background:#fff}
#problem::before{content:'';position:absolute;right:0;top:110px;width:220px;height:220px;background:repeating-linear-gradient(135deg,transparent 0 12px,#eee 12px 13px);clip-path:polygon(100% 0,100% 100%,0 0);z-index:-1}
#problem .ask-line{text-align:left;margin-top:36px;margin-bottom:0}
#problem .ask-line span{border:0;padding:0;font-size:.85rem;color:#777}
.cards3{gap:32px;margin-top:26px}
.card3{display:block;padding:0 0 26px;border:0;border-bottom:2px solid #ddd;background:transparent}
.card3-ico{width:100%;height:140px;border-radius:0;background:#f8f8f8;position:relative;margin-bottom:24px;overflow:hidden}
.card3-ico img{display:block;width:100%;height:100%;object-fit:cover}
.card3 p{font-size:.88rem;line-height:1.9}
.card3 h3{font-size:1.05rem;margin-bottom:13px}
#scenario{background:#f7f7f7}
#scenario h2{line-height:1.36}
#scenario .phase4-grid{gap:0;border-top:1px solid #ccc;margin-top:45px}
#scenario .phase4-card{border:0;border-right:1px solid #ddd;background:transparent;padding:28px 22px 16px;min-height:0}
#scenario .phase4-card:first-child{padding-left:0}
#scenario .phase4-card:last-child{border-right:0}
#scenario .phase4-card::after{display:none}
#scenario .phase-no{font-size:12px;color:var(--sun-dark-red)}
.stage-art{display:block;width:112px;height:84px;margin:20px 0;fill:none;stroke:#999;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.stage-art .ink{stroke:var(--sun-red);stroke-width:2}
#scenario .phase4-card h3{font-size:1rem;min-height:0;line-height:1.6}
#scenario .phase4-card p{font-size:.84rem}
.phase-meta{font-size:.76rem!important}
.demo-video-block{display:flex;flex-direction:column;align-items:center;gap:0;padding:0;background:transparent;border:0;margin:64px 0 0;text-align:center}
.demo-video-caption{margin-top:18px;font-size:.9rem;line-height:1.6;font-weight:700;color:var(--text-dark)}
.demo-video-caption small{font-size:.75rem;font-weight:400;color:#777}
.demo-video-frame{width:min(100%,630px);max-width:630px;margin:0 auto;padding:0;border:0;box-shadow:none;background:transparent}
.proof-strip{border:0;border-top:2px solid var(--sun-red);background:transparent;padding:34px 0 0}
.proof-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.proof-item b{color:var(--sun-dark-red)}
.proof-sub,.proof-item span{font-size:.83rem}
#how{background:#fff;background-image:linear-gradient(#f1f1f1 1px,transparent 1px),linear-gradient(90deg,#f1f1f1 1px,transparent 1px);background-size:48px 48px}
#how>.wrap>.lead{background:#fff}
.flow4{gap:18px;margin-top:44px}
.flow-step{min-height:0;padding:25px 21px;box-shadow:0 12px 30px #00000004}
.flow-no{font-size:.75rem;color:#777}
.flow-step.highlight{background:#fff;border-color:var(--sun-red);box-shadow:0 12px 32px #ff220012}
.flow-step.highlight::before{content:'CORE';position:absolute;right:16px;top:21px;font:600 10px 'Eina03',sans-serif;color:var(--sun-dark-red);letter-spacing:.12em}
.flow-step p{font-size:.84rem;line-height:1.9}
.flow-step h3{font-size:.95rem}
.flow-step .stage-art{margin:16px 0 22px}
.conn{padding:22px;background:#f7f7f7;border:1px solid #e1e1e1}
.conn-tag{font-size:.82rem;border:0}
.conn .note-small{font-size:.77rem}
.term-note{padding:24px;margin-top:24px}
.term-note p{font-size:.85rem}
.loop4-wrap{background:#fff;padding:26px;border:1px solid #ddd}
.loop4-title{font-size:1rem}
.loop-step{border:0;border-top:2px solid #ddd;text-align:left;padding:18px 10px 5px;font-size:.85rem}
.loop-step span{color:var(--sun-dark-red);margin-bottom:10px}
.ringi{font-size:.82rem;background:#fff;border:1px solid #ddd;border-left:3px solid var(--sun-gold);box-shadow:none}
#usecases{background:#f7f7f7}
.usecase-grid{gap:32px}
.usecase-card{padding:0 28px 28px;gap:20px;border:1px solid #ddd}
.case-visual{margin:0 -28px;padding:18px 24px 0;background:#eee;overflow:hidden}
.case-index{font:600 10px 'Eina03',sans-serif;letter-spacing:.14em;color:#777}
.case-visual svg{display:block;height:165px;width:100%;fill:#fff;stroke:#aaa;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.case-visual svg .ink{stroke:var(--sun-red);fill:none;stroke-width:2}
.case-2 .case-visual,.case-3 .case-visual{background-color:#f3f3f3;background-image:radial-gradient(#d6d6d6 1px,transparent 1px);background-size:16px 16px}
.uc-head{margin-top:4px;gap:12px}
.uc-tag{font-size:.7rem;color:var(--sun-dark-red);background:none;padding:0;letter-spacing:.04em}
.uc-head h3{font-size:1.2rem;line-height:1.65}
.uc-before,.uc-after{font-size:.84rem;line-height:1.85;min-height:0;padding:14px}
.uc-after{background:#fff;border:1px solid #e3b3ac;border-top:3px solid var(--sun-red)}
.uc-before{border-color:#eee}
.uc-values{gap:5px}
.uc-values li{font-size:.81rem;border:0;padding-top:4px;padding-bottom:4px}
.uc-meta{font-size:.79rem}
.uc-meta th,.uc-why{font-size:.75rem}
.cta-mid-band{position:relative;background:#fff;border:0;border-top:2px solid var(--sun-red);display:flex;justify-content:space-between;align-items:center;gap:24px;text-align:left;padding:34px}
.cta-mid-band h3{margin:0;font-size:1.5rem}
.cta-mid-band .sub-links{display:none}
#patterns{background:#fff}
.pattern-col{border:0;border-top:2px solid #ddd;background:#f7f7f7;padding:26px}
.pattern-col p{font-size:.85rem}
.layer-chips{gap:8px;margin-top:24px}
.layer-chip{background:#fff;border:1px solid #ddd;min-height:50px}
.layer-chip.new{border-color:#e3b3ac;background:#fff;box-shadow:inset 4px 0 var(--sun-red)}
#security{background:#f7f7f7}
.sec4-card{background:transparent;border:0;border-left:1px solid #d5d5d5;padding:6px 24px}
.sec4-ico{background:#fff;width:60px;height:60px;margin-bottom:22px}
.sec4-card p{font-size:.84rem;line-height:1.85}
#process{background:#fff}
#process .phase4-grid{gap:0}
#process .phase4-card{border:0;border-top:3px solid #ddd;padding:25px 24px;background:linear-gradient(#f7f7f7,white)}
#process .phase4-card:nth-child(3){border-color:var(--sun-red)}
#process .phase-no{color:var(--sun-dark-red);font-size:2.5rem;font-weight:300}
#process .phase4-card::after{top:0;right:0;transform:translate(50%,-55%);background:#fff;padding:0 6px}
#process .phase4-card p{font-size:.84rem}
#comparison{background:#f7f7f7}
#faq{background:#fff}
#faq .acc{border:0;border-top:1px solid #ddd}
#faq .acc+.acc{margin-top:0}
#cta-final{background:#f7f7f7;background-image:radial-gradient(#dcdcdc 1px,transparent 1px);background-size:20px 20px}
.cta-block{background:#fff;border:1px solid #ddd;padding:56px 40px}
@media(min-width:1500px){.hero{padding-top:114px}.hero-grid{gap:56px}.hero h1{font-size:54px}}
@media(max-width:1000px){.hero-grid{grid-template-columns:1fr 1fr;gap:16px}.hero h1{font-size:clamp(30px,3.8vw,38px)}.hero .nw{white-space:normal}.hero-lead{font-size:.92rem}.hero .eyebrow{font-size:.63rem}.hero-support{font-size:.7rem}.flow4{grid-template-columns:repeat(2,1fr)}.flow-step::after{display:none}.demo-video-block{padding:28px;gap:24px}.proof-item{padding-left:14px;padding-right:14px}.proof-item b{font-size:34px}.proof-item small{font-size:.73rem}}
@media(max-width:760px){.hero{padding-top:70px}.hero-grid{grid-template-columns:1fr;gap:36px}.hero h1{font-size:clamp(28px,5.6vw,40px)}.hero .eyebrow{font-size:.72rem}.hero-lead{font-size:1rem}.hero-support{font-size:.77rem}.hero-visual{max-width:580px;margin:auto}.summary{grid-template-columns:1fr;margin-top:26px}.summary-card,.summary-card:first-child,.summary-card:last-child{padding:24px 0;border:0;border-bottom:1px solid #ddd}.summary-card p{max-width:none}.summary-card .num{float:left;margin:6px 18px 40px 0}.summary-card+.summary-card{border-left:0}.cards3{grid-template-columns:1fr;gap:24px}.card3{display:grid;grid-template-columns:120px 1fr;gap:20px;align-items:center}.card3-ico{height:130px;margin:0}.card3-ico::before,.card3-ico::after{width:20px}.card3 h3{font-size:1rem}.card3 p{font-size:.82rem}.section-marker{margin-bottom:26px}#scenario .phase4-grid{grid-template-columns:repeat(2,1fr)}#scenario .phase4-card:first-child{padding-left:22px}#scenario .phase4-card:nth-child(2){border-right:0}.demo-video-block{grid-template-columns:1fr;padding:24px}.demo-video-block>.note-small{grid-column:1}.usecase-grid{grid-template-columns:1fr}.usecase-card{gap:18px}.uc-ba{grid-template-columns:1fr 24px 1fr}.uc-ba-arrow{transform:none;height:auto}.cta-mid-band{display:block;padding:28px}.cta-mid-band h3{margin-bottom:22px}.pattern-grid{grid-template-columns:1fr}.sec4-grid{grid-template-columns:repeat(2,1fr)}#process .phase4-grid{grid-template-columns:repeat(2,1fr)}#process .phase4-card::after{display:none}.loop4{grid-template-columns:repeat(2,1fr)}.loop-step::after{display:none}.proof-grid{grid-template-columns:1fr 1fr;gap:24px}.proof-item{padding:20px 10px 0!important;border:0}.cta-block{padding:40px 22px}}
@media(max-width:440px){.hero{padding-top:62px}.hero-map{margin-top:8px}.visual-caption{font-size:8px}.visual-foot{font-size:8px}.card3{grid-template-columns:86px 1fr;gap:16px}.card3-ico{height:118px}.card3-ico svg{width:48px;height:48px}.flow4{gap:14px}.flow-step{padding:18px 14px}.flow-step h3{font-size:.82rem;overflow-wrap:anywhere}.flow-step p{font-size:.77rem}.flow-step.highlight::before{right:10px;font-size:8px}.stage-art{width:90px;height:70px}.uc-ba{grid-template-columns:1fr}.uc-ba-arrow{transform:rotate(90deg);height:18px}.usecase-card{padding-left:22px;padding-right:22px}.case-visual{margin-left:-22px;margin-right:-22px}.sec4-card{padding:6px 14px}.sec4-card h3{font-size:.88rem}.sec4-card p{font-size:.78rem}#scenario .phase4-card{padding:20px 14px!important}#process .phase4-card{padding:20px 14px}.loop4-wrap{padding:20px 16px}.proof-item b{font-size:30px}}
/* Generated editorial images and compact scenario narratives. */
.case-visual{position:relative;height:230px;padding:0;background:#f2f1ef!important;background-image:none!important}
.case-visual img{display:block;width:100%;height:100%;object-fit:cover}
.case-index{position:absolute;left:22px;top:18px;z-index:1;background:#ffffffd9;border:1px solid #ffffffab;padding:7px 10px;color:#555;backdrop-filter:blur(6px)}
.usecase-card{gap:18px}
.uc-head h3{font-size:1.25rem}
.uc-ba{gap:8px}
.uc-before,.uc-after{min-height:148px}
.uc-audience{font-size:.75rem;color:#777;border-top:1px solid #ddd;padding-top:17px;margin-top:auto}
.uc-audience b{font-weight:700;color:#333;margin-left:12px}
#how .lead,#patterns .lead,#security .lead,#process .lead{max-width:870px}
@media(max-width:760px){.case-visual{height:clamp(190px,48vw,270px)}.uc-before,.uc-after{min-height:0}}
@media(max-width:440px){.case-visual{height:195px}.uc-audience b{display:block;margin:5px 0 0}}
/* At tablet widths the comparison table remains internally scrollable. */
@media(min-width:561px) and (max-width:900px){#comparison .tbl-wrap{max-width:100%;overflow-x:auto}#comparison .comp{width:760px;min-width:760px}}
@media(max-width:860px){#process .phase4-card::after{display:none}}

/* Sun* site-inspired hero CTA: two-line label, bright red pill and a simple chevron. */
.hero .hero-cta .btn-primary{position:relative;width:min(100%,310px);min-height:78px;justify-content:space-between;gap:20px;padding:14px 26px 14px 34px;border-radius:999px;background:var(--sun-red);text-align:left;box-shadow:none;transition:background .25s,transform .25s}
.hero .hero-cta .btn-primary:hover{background:var(--sun-dark-red);transform:translateY(-2px)}
.hero .hero-cta .btn-primary:active{transform:translateY(0)}
.hero-cta-label{display:flex;flex-direction:column;gap:4px;font-size:.92rem;line-height:1.35;letter-spacing:.02em}
.hero-cta-label,.hero .hero-cta .btn-primary .arrow{position:relative;z-index:1}
.hero-cta-label>span{font-family:var(--f-en);font-weight:700;letter-spacing:.04em}
.hero-cta-label strong{font-size:1.07rem;font-weight:800;white-space:nowrap}
.hero .hero-cta .btn-primary .arrow{font-family:var(--f-en);font-size:2.5rem;font-weight:300;line-height:1;margin:0;transform:translateY(-2px);transition:transform .2s}
.hero .hero-cta .btn-primary:hover .arrow{transform:translate(3px,-2px)}
.summary-card:first-child p{max-width:none}
.hero-map .route-motion circle{filter:drop-shadow(0 0 4px rgba(255,34,0,.34))}
@keyframes yosuka-glow{0%,100%{opacity:.2;transform:scale(.98)}50%{opacity:.48;transform:scale(1.12)}}
.hero-map .yosuka-halo{filter:blur(17px);transform-box:fill-box;transform-origin:center;animation:yosuka-glow 4.4s ease-in-out infinite}
@media(max-width:560px){.hero .hero-cta .btn-primary{width:min(100%,310px);min-height:78px;padding:14px 26px 14px 34px}}
@media(prefers-reduced-motion:reduce){.hero-map .route-motion{display:none}.hero-map .yosuka-halo{animation:none;opacity:.2;transform:none}.hero .hero-cta .btn-primary,.hero .hero-cta .btn-primary .arrow{transition:none}}
@media(max-width:860px){.card3-ico{height:clamp(118px,38vw,260px)}}
@media(max-width:760px){.card3{display:block}.card3-ico{margin:0 0 18px}}
@media(max-width:1000px){.demo-video-block{gap:0;padding:0}}
@media(max-width:760px){
  .demo-video-block{padding:0}
  .proof-grid{grid-template-columns:1fr}
  .proof-item{padding:22px 0!important;border:0!important;border-top:1px solid var(--border)!important}
  .proof-item:first-child{border-top:0!important}
  .proof-item:nth-child(n+3){margin-top:0}
}