:root{
  --main:#1F51A2;
  --accent:#F08300;
  --white:#FFFFFF;
  --ink:#182130;
  --muted:#667181;
  --line:#ADB6C4;
  --soft:#F6F8FB;
  --content:1240px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans JP",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--white);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
img{max-width:100%;display:block}

.section-shell{
  width:min(var(--content),calc(100% - 64px));
  margin-inline:auto;
}
.section{
  position:relative;
  padding:112px 0;
}
.white-section{background:var(--white);color:var(--ink)}
.navy-section{background:var(--main);color:var(--white)}

/* Header */
.site-header{
  position:absolute;
  inset:0 0 auto;
  z-index:20;
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 max(32px,calc((100vw - var(--content))/2));
  color:var(--white);
  background:transparent;
  border:0;
}
.brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:800}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;
  color:var(--main);background:var(--white);font-weight:900;
}
.header-nav{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:700}
.header-cta{padding:11px 18px;background:var(--accent);color:var(--white)}
.menu-button{display:none;border:0;background:none;color:var(--white);font-size:26px;padding:8px}

/* Shared typography */
.eyebrow{
  margin:0 0 18px;
  font-size:12px;
  line-height:1.2;
  font-weight:800;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--main);
}
.navy-section .eyebrow{color:var(--white)}
.section-heading{max-width:880px;margin-bottom:58px}
.section-heading h2,
.detail-head h2{
  margin:0 0 20px;
  font-size:clamp(38px,4vw,58px);
  line-height:1.22;
  letter-spacing:-.035em;
  font-weight:800;
}
.section-heading>p:last-child{margin:0;font-size:18px}

/* Buttons */
.button{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:12px 26px;
  border:1px solid transparent;border-radius:3px;
  font-weight:800;line-height:1.2;cursor:pointer;
}
.button-primary{background:var(--accent);color:var(--white)}
.button-outline{background:transparent;color:var(--main);border-color:var(--main)}
.button-disabled{background:transparent;color:#7C8795;border-color:var(--line);cursor:default}
.section-cta{margin-top:48px;text-align:center}

/* Hero — editorial, controlled */
.hero{
  position:relative;
  min-height:800px;
  display:flex;
  align-items:center;
  overflow:hidden;
  background:var(--main);
}
.hero-background{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  display:flex;align-items:flex-end;justify-content:center;
}
.hero-background img{width:100%;height:auto;max-width:none}
.hero .section-shell{position:relative;z-index:1}
.hero-grid{display:block}
.hero-copy{max-width:1160px;padding:118px 0 150px}
.hero .eyebrow{margin-bottom:28px}
.hero h1{
  margin:0 0 46px;
  font-size:clamp(48px,4.8vw,76px);
  line-height:1.08;
  letter-spacing:-.045em;
  font-weight:800;
}
.pc-line{display:inline;white-space:nowrap}
.sp-line{display:none}
.hero-message{
  max-width:820px;
  margin:0 0 20px;
  font-size:clamp(24px,2.25vw,32px);
  line-height:1.5;
  font-weight:700;
  letter-spacing:-.02em;
}
.hero-sub{
  max-width:640px;
  margin:0 0 38px;
  font-size:18px;
  line-height:1.8;
}

/* Pain — editorial numbers, restrained */
#pain{padding-top:120px}
#pain .section-heading{max-width:1000px;margin-bottom:72px}
#pain .section-heading h2{font-size:clamp(42px,4.7vw,64px)}
.pain-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-left:1px solid var(--line);
}
.pain-item{
  min-height:270px;padding:34px 30px;
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
}
.pain-item span{
  display:block;margin-bottom:58px;
  color:var(--main);font-size:22px;line-height:1;font-weight:900;letter-spacing:.06em;
}
.pain-item strong{display:block;margin-bottom:12px;font-size:24px;line-height:1.35;letter-spacing:-.025em}
.pain-item p{margin:0;color:var(--muted)}

/* Concept — editorial headline + simple system */
#concept .section-heading{max-width:1040px;margin-bottom:68px}
#concept .section-heading h2{font-size:clamp(44px,4.8vw,66px)}
.value-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.55);
  border-left:1px solid rgba(255,255,255,.55);
}
.value-item{
  min-height:190px;padding:30px;
  border-right:1px solid rgba(255,255,255,.55);
  border-bottom:1px solid rgba(255,255,255,.55);
}
.value-item span{font-size:28px;font-weight:800;letter-spacing:-.03em}
.value-item p{margin:34px 0 0;max-width:230px}
.role-diagram{
  margin:64px 0 36px;
  display:grid;grid-template-columns:1fr 54px 1fr 54px 1fr;align-items:center;text-align:center;
}
.role-diagram div{padding:28px 20px;border:1px solid rgba(255,255,255,.65)}
.role-diagram small{display:block;margin-bottom:10px;font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.role-diagram strong{font-size:20px}
.role-diagram b{font-size:20px}
.concept-end{max-width:900px;margin:0;font-size:20px;line-height:1.65}
.concept-end strong{font-size:30px;letter-spacing:-.03em}

/* Products — minimal SaaS */
#lineup{background:var(--soft)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.product-card{
  min-height:480px;padding:34px;
  display:flex;flex-direction:column;
  background:var(--white);border:1px solid var(--line);border-radius:3px;
}
.status-badge{
  display:inline-flex;align-items:center;width:max-content;
  min-height:30px;padding:6px 11px;margin-bottom:22px;
  border:1px solid currentColor;border-radius:2px;
  font-size:13px;line-height:1;font-weight:900;letter-spacing:.05em;
}
.status-live{color:var(--main);background:var(--white)}
.status-new{color:var(--white);background:var(--accent);border-color:var(--accent)}
.status-coming{color:#6D7785;background:var(--white);border-color:var(--line)}
.product-card h3{margin:0 0 32px;font-size:32px;line-height:1.18;letter-spacing:-.035em}
.product-card h3 small{font-size:18px;letter-spacing:-.01em}
.target{display:flex;align-items:center;gap:16px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.target p{margin:0}.target small{display:block;margin-bottom:3px;color:#7A8492;font-size:11px;letter-spacing:.08em}.target strong{font-size:17px}
.silhouette{display:block;width:32px;height:32px;background:var(--main);flex:0 0 auto}
.silhouette.person{clip-path:polygon(35% 0,65% 0,75% 28%,68% 45%,88% 58%,100% 100%,0 100%,12% 58%,32% 45%,25% 28%)}
.silhouette.building{clip-path:polygon(0 20%,38% 20%,38% 0,100% 0,100% 100%,0 100%)}
.purpose{margin:26px 0 32px;color:var(--muted)}
.product-card .button{width:100%;margin-top:auto}
.coming-message{margin:52px 0 24px;font-size:30px;line-height:1.4;font-weight:800;letter-spacing:-.03em}
.release-date{margin:0 0 30px;color:var(--muted)}

/* Selector */
.selector-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid rgba(255,255,255,.55);border-left:1px solid rgba(255,255,255,.55);
}
.selector-card{
  min-height:300px;padding:32px;
  display:flex;flex-direction:column;
  border-right:1px solid rgba(255,255,255,.55);border-bottom:1px solid rgba(255,255,255,.55);
}
.selector-no{font-size:24px;line-height:1;font-weight:900;letter-spacing:.06em}
.selector-card strong{margin:46px 0 12px;font-size:25px;line-height:1.35;letter-spacing:-.025em}
.selector-card p{margin:0}.selector-card em{margin-top:auto;padding-top:26px;font-style:normal;font-size:16px;font-weight:800}
.coming-selector em{opacity:.75}

/* Product detail — minimal information architecture */
.detail-head{margin-bottom:56px}
.detail-head h3{margin:12px 0 0;font-size:22px}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.detail-grid>div{padding:32px;border:1px solid var(--line);background:var(--white)}
.navy-section .detail-grid>div{background:transparent;border-color:rgba(255,255,255,.55)}
.detail-grid h4,.steps-block h4{margin:0 0 24px;font-size:24px;line-height:1.35;letter-spacing:-.025em}
.detail-grid ul{margin:0;padding-left:1.25em}.detail-grid li{margin:9px 0}
.checklist{list-style:none;padding-left:0!important}.checklist li::before{content:"✓";margin-right:10px;color:var(--main);font-weight:900}.navy-section .checklist li::before{color:var(--white)}
.steps-block{margin-top:64px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.steps>div{min-height:210px;padding:28px;border:1px solid var(--line);background:var(--white)}
.navy-section .steps>div{background:transparent;border-color:rgba(255,255,255,.55)}
.steps span{display:block;margin-bottom:42px;font-size:24px;line-height:1;font-weight:900}
.steps strong{font-size:20px;letter-spacing:-.02em}.steps p{margin:9px 0 0}
.impact{margin-top:64px;padding:30px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.navy-section .impact{border-color:rgba(255,255,255,.55)}
.impact small{display:block;margin-bottom:12px}.impact strong{font-size:28px;line-height:1.5;letter-spacing:-.03em}

/* IT */
#guide{background:var(--soft)}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.info-grid>div{min-height:230px;padding:28px;background:var(--white);border:1px solid var(--line)}
.info-grid h3{margin:0 0 20px;font-size:21px;letter-spacing:-.02em}.info-grid p{margin:8px 0;color:var(--muted)}

/* FAQ */
.faq-list{border-top:1px solid rgba(255,255,255,.6)}
details{border-bottom:1px solid rgba(255,255,255,.6)}
summary{position:relative;list-style:none;cursor:pointer;padding:24px 48px 24px 0;font-size:18px;font-weight:800}
summary::-webkit-details-marker{display:none}
summary::after{content:"＋";position:absolute;right:0;top:21px;font-size:22px}
details[open] summary::after{content:"−"}
.faq-body{max-width:900px;padding:0 0 24px}.faq-body p{margin:4px 0}

/* Consultation */
.consultation-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px}
.consultation-copy h2{margin:0 0 24px;font-size:clamp(40px,4.2vw,58px);line-height:1.2;letter-spacing:-.035em}
.consultation-copy p{font-size:18px}
.form-card{padding:34px;background:var(--white);border:1px solid var(--line);border-radius:3px}
.form-card label{display:block;margin-bottom:18px;font-weight:700}.form-card label span,.form-card label small{margin-left:8px;color:var(--main);font-size:11px}
.form-card input,.form-card select,.form-card textarea{width:100%;margin-top:7px;padding:12px 13px;border:1px solid var(--line);border-radius:2px;background:var(--white)}
.form-card fieldset{margin:0 0 20px;padding:18px;border:1px solid var(--line)}.form-card legend{padding:0 8px;font-weight:700}.form-card .check{margin:8px 0;font-weight:500}.form-card .check input{width:auto;margin:0 8px 0 0}.form-submit{width:100%;margin-top:8px}.form-note{font-size:12px;color:#6A7480;text-align:left}

.footer-inner{height:100px;display:flex;align-items:center;justify-content:space-between}
.toast{position:fixed;left:50%;bottom:24px;z-index:100;transform:translate(-50%,18px);padding:12px 18px;background:#111827;color:#fff;opacity:0;transition:.25s}.toast.show{opacity:1;transform:translate(-50%,0)}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease}.reveal.visible{opacity:1;transform:none}

@media(max-width:1000px){
  .section-shell{width:min(var(--content),calc(100% - 40px))}
  .header-nav{display:none}.menu-button{display:block}
  .site-header.menu-open .header-nav{display:flex;position:absolute;top:76px;left:20px;right:20px;flex-direction:column;align-items:flex-start;padding:18px 20px;background:var(--white);color:var(--ink);border:1px solid var(--line)}
  .site-header.menu-open .header-nav a{color:var(--ink)}
  .hero{min-height:760px}.hero-copy{padding:120px 0 150px}.hero h1{font-size:clamp(46px,6.5vw,64px)}
  .pain-grid,.value-grid,.product-grid,.selector-grid,.info-grid{grid-template-columns:1fr 1fr}
  .role-diagram{grid-template-columns:1fr;gap:12px}.role-diagram b{transform:rotate(90deg)}
  .detail-grid,.consultation-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}
  .section{padding:92px 0}
}

@media(max-width:620px){
  .section-shell{width:calc(100% - 28px)}
  .site-header{padding:0 20px}
  .brand{font-size:16px}.brand-mark{width:34px;height:34px}
  .hero{min-height:720px}.hero-background img{width:auto;height:100%}.hero-copy{padding:118px 0 170px}
  .pc-line{display:none}.sp-line{display:inline}
  .hero h1{font-size:clamp(42px,12vw,54px);line-height:1.12;margin-bottom:36px}
  .hero-message{font-size:22px;line-height:1.55}.hero-sub{font-size:17px}.hero-message .nowrap,.hero-sub .nowrap{white-space:normal}
  .section{padding:76px 0}
  .section-heading{margin-bottom:44px}.section-heading h2,.detail-head h2,#pain .section-heading h2,#concept .section-heading h2{font-size:38px;line-height:1.25}
  .pain-grid,.value-grid,.product-grid,.selector-grid,.info-grid,.steps{grid-template-columns:1fr}
  .pain-item{min-height:220px}.pain-item span{margin-bottom:38px}
  .product-card{min-height:auto}.selector-card{min-height:250px}.selector-card strong{margin-top:34px}
  .detail-grid{gap:14px}.steps{gap:14px}.consultation-grid{gap:42px}.form-card{padding:22px}
  .section-cta{text-align:left}
}

.nowrap{
  white-space: nowrap;
}