/* =========================================================
   RB Trust - Corporate Site
   Base color: navy / blue on white (parent group tone)
   ========================================================= */

:root{
  --navy:#0a2a5e;        /* primary deep navy */
  --blue:#1c4fa0;        /* accent blue */
  --blue-light:#3a73c5;
  --accent:#d24726;      /* CTA vermilion (紺×朱: prominent yet on-tone) */
  --accent-dark:#b3381c;
  --ink:#222;            /* body text */
  --gray:#666;
  --line:#e3e6ec;
  --bg-soft:#f5f7fa;
  --white:#fff;
  --maxw:1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:auto;}
body{
  margin:0;
  font-family:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  line-height:1.8;
  font-size:15px;
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:opacity .2s,color .2s;}
ul{list-style:none;margin:0;padding:0;}

.container{width:90%;max-width:var(--maxw);margin:0 auto;}
.pc-only{display:inline;}
.sp-only{display:none;}

/* ====== Header ====== */
.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:100;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
  transition:box-shadow .3s;
}
.site-header.scrolled{box-shadow:0 2px 14px rgba(0,0,0,.07);}
.header-inner{
  width:90%;max-width:var(--maxw);margin:0 auto;
  height:74px;display:flex;align-items:center;justify-content:space-between;
}
.logo-img{height:42px;width:auto;}
.gnav ul{display:flex;align-items:center;gap:30px;}
.gnav a{
  font-size:14px;font-weight:500;letter-spacing:.03em;color:var(--navy);
  position:relative;padding:6px 0;
}
.gnav > ul > li > a:not(.nav-contact):not(.nav-parent)::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--blue);transition:width .25s;
}
.gnav > ul > li > a:not(.nav-contact):not(.nav-parent):hover::after{width:100%;}
.gnav a.nav-contact{
  background:var(--navy);color:#fff;padding:10px 22px;border-radius:2px;
  font-weight:500;
}
.gnav a.nav-contact::after{display:none;}
.gnav a.nav-contact:hover{background:var(--blue);color:#fff;}
.menu-toggle{
  display:none;flex-direction:column;gap:5px;background:none;border:0;
  cursor:pointer;padding:6px;
}
.menu-toggle span{width:26px;height:2px;background:var(--navy);transition:.3s;}

/* ====== Hero ====== */
/* header + hero = one screen, so the scroll indicator stays in view */
.hero{
  position:relative;margin-top:74px;background:#0a1a33;overflow:hidden;
  height:calc(100vh - 74px);min-height:540px;max-height:900px;
}
.hero-image{position:absolute;inset:0;z-index:1;}
.hero-image img,
.hero-image .hero-video{width:100%;height:100%;display:block;object-fit:cover;}
/* dark scrim so white copy stays legible over the bright video */
.hero::after{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:
    /* left scrim for the headline copy (lightened to match the mobile darkness level) */
    linear-gradient(90deg,rgba(6,16,34,.5) 0%,rgba(6,16,34,.34) 34%,rgba(6,16,34,.08) 62%,rgba(6,16,34,0) 80%),
    /* bottom scrim */
    linear-gradient(0deg,rgba(6,16,34,.4) 0%,rgba(6,16,34,0) 42%);
}
.hero-copy{
  position:absolute;left:8%;top:50%;transform:translateY(-50%);z-index:3;
  color:#fff;text-shadow:0 2px 16px rgba(0,0,0,.55);max-width:620px;
}
.hero-lead{
  font-size:15px;letter-spacing:.25em;margin:0 0 18px;font-weight:600;
  color:#e6efff;
}
.hero-title{
  font-family:"Noto Serif JP",serif;
  font-size:42px;line-height:1.45;font-weight:600;margin:0 0 20px;
  letter-spacing:.04em;
}
.hero-sub{font-size:15px;letter-spacing:.08em;margin:0;font-weight:400;opacity:.95;}

/* ---- hero text: staggered fade-up on load ---- */
@keyframes heroFadeUp{
  from{opacity:0;transform:translateY(26px);}
  to{opacity:1;transform:translateY(0);}
}
.hero-lead,.hero-title,.hero-sub{
  opacity:0;
  animation:heroFadeUp .9s cubic-bezier(.2,.7,.2,1) forwards;
}
.hero-lead{animation-delay:.3s;}
.hero-title{animation-delay:.65s;}
.hero-sub{animation-delay:1.1s;}

/* ---- scroll indicator: appears AFTER the text animation, then bounces ---- */
@keyframes scrollFadeIn{from{opacity:0;}to{opacity:.95;}}
@keyframes scrollBounce{
  0%{transform:translateY(0);opacity:.4;}
  45%{transform:translateY(12px);opacity:1;}
  100%{transform:translateY(0);opacity:.4;}
}
.scroll-indicator{
  position:absolute;left:50%;bottom:30px;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:12px;
  color:#fff;text-shadow:0 1px 10px rgba(0,0,0,.5);
  opacity:0;
  animation:scrollFadeIn .8s ease forwards;
  animation-delay:1.6s;          /* appear shortly after the hero text settles */
}
.scroll-text{font-size:10px;letter-spacing:.3em;font-weight:600;}
.scroll-arrow-wrap{
  display:block;
  animation:scrollBounce 1.5s ease-in-out 2s infinite;  /* lively, continuous bounce */
}
.scroll-arrow{
  display:block;width:13px;height:13px;
  border-right:2px solid #fff;border-bottom:2px solid #fff;
  transform:rotate(45deg);
}
.scroll-indicator:hover{opacity:1;}

/* respect reduced-motion preference */
@media (prefers-reduced-motion: reduce){
  .hero-lead,.hero-title,.hero-sub{opacity:1;animation:none;transform:none;}
  .scroll-indicator{opacity:.95;animation:none;}
  .scroll-arrow-wrap{animation:none;}
}

/* ====== Section commons ====== */
.section{padding:84px 0;}
.section-head{text-align:center;margin-bottom:46px;}
.section-head.left{text-align:left;margin-bottom:28px;}
.section-title-en{
  font-family:"Noto Serif JP",serif;
  font-size:34px;font-weight:600;color:var(--navy);
  letter-spacing:.08em;margin:0;line-height:1.2;
}
.section-title-ja{
  font-size:13px;color:var(--blue);letter-spacing:.15em;font-weight:500;
  margin:10px 0 0;
}
.section-desc{text-align:center;color:var(--gray);margin:0 0 48px;font-size:15.5px;}
.section-more{text-align:center;margin-top:46px;}

.btn-outline{
  display:inline-block;border:1px solid var(--navy);color:var(--navy);
  padding:13px 40px;font-size:14px;font-weight:500;letter-spacing:.06em;
  border-radius:2px;
}
.btn-outline:hover{background:var(--navy);color:#fff;}
.btn-primary{
  display:inline-block;background:var(--navy);color:#fff;border:0;cursor:pointer;
  padding:17px 56px;font-size:16px;font-weight:600;letter-spacing:.08em;
  border-radius:2px;box-shadow:0 6px 18px rgba(10,42,94,.25);
}
.btn-primary:hover{background:var(--blue);}

/* ====== Business ====== */
.section-business{background:#fff;}
.business-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.business-card{
  background:#fff;padding:42px 32px;border-radius:3px;
  border-top:3px solid var(--blue);
  box-shadow:0 4px 20px rgba(10,42,94,.06);
  transition:transform .3s,box-shadow .3s;
}
.business-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(10,42,94,.12);}
.business-card-en{
  font-size:12px;letter-spacing:.14em;color:var(--blue);font-weight:600;margin-bottom:14px;
}
.business-card-title{
  font-family:"Noto Serif JP",serif;font-size:19px;color:var(--navy);
  margin:0 0 16px;font-weight:600;line-height:1.5;
}
.business-card-text{font-size:14px;color:var(--gray);margin:0;line-height:1.85;}
/* ====== Sublease promo (top page, independent section) ====== */
.section-sublease{background:#fff;}
.sublease-promo{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--navy),var(--blue));
  border-radius:14px;padding:56px 60px;color:#fff;
  box-shadow:0 18px 50px rgba(10,42,94,.18);
}
/* water-like light sweeps (slow shimmer behind the content) */
.sublease-promo::before,
.sublease-promo::after{
  content:"";position:absolute;inset:-20%;pointer-events:none;background-repeat:no-repeat;
}
.sublease-promo::before{
  background-image:linear-gradient(115deg,transparent 38%,rgba(255,255,255,.10) 47%,rgba(255,255,255,.20) 50%,rgba(255,255,255,.10) 53%,transparent 62%);
  background-size:220% 100%;
  animation:subleaseShine 7.5s linear infinite;
}
.sublease-promo::after{
  background-image:linear-gradient(100deg,transparent 40%,rgba(150,195,255,.10) 49%,rgba(165,205,255,.17) 51%,transparent 60%);
  background-size:260% 100%;
  animation:subleaseShine 12s linear infinite;
  animation-delay:-3.5s;
}
@keyframes subleaseShine{
  0%{background-position:165% 0;}
  100%{background-position:-65% 0;}
}
.sublease-promo-en{font-size:13px;letter-spacing:.18em;color:#9fc0ff;font-weight:600;margin:0 0 14px;}
.sublease-promo-title{
  font-family:"Noto Serif JP",serif;font-size:28px;font-weight:600;
  line-height:1.5;margin:0 0 18px;
}
.sublease-promo-text{font-size:15px;line-height:2;margin:0 0 22px;color:#e8eefb;max-width:780px;}
.sublease-promo-points{list-style:none;padding:0;margin:0 0 32px;display:flex;flex-wrap:wrap;gap:12px 28px;}
.sublease-promo-points li{position:relative;padding-left:24px;font-size:14.5px;color:#fff;}
.sublease-promo-points li::before{
  content:"";position:absolute;left:0;top:8px;width:11px;height:11px;
  border-radius:50%;background:var(--accent);
}
.sublease-promo-body{position:relative;z-index:1;}
.sublease-promo-btn{background:#fff;color:var(--navy);}
.sublease-promo-btn:hover{background:#dfe8f7;}
@media (prefers-reduced-motion: reduce){
  .sublease-promo::before,.sublease-promo::after{animation:none;}
}

/* ====== Recruit (top page, external link band) ====== */
.section-recruit{background:#fff;}
.recruit-band{
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;border-radius:14px;min-height:240px;
  text-align:center;color:#fff;
  background:linear-gradient(rgba(8,26,60,.55),rgba(8,26,60,.55)),
    url("../images/recruit-bg.png") center/cover no-repeat;
  box-shadow:0 12px 36px rgba(10,42,94,.14);
  transition:box-shadow .3s,transform .3s;
}
.recruit-band:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(10,42,94,.22);}
.recruit-band-body{padding:50px 24px;}
.recruit-en{font-size:13px;letter-spacing:.2em;color:#cfe0ff;font-weight:600;margin:0 0 10px;}
.recruit-title{font-family:"Noto Serif JP",serif;font-size:28px;font-weight:600;margin:0 0 14px;}
.recruit-text{font-size:15px;line-height:1.9;margin:0 0 26px;color:#eef3fb;}
.recruit-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--navy);font-weight:600;font-size:14px;
  padding:13px 32px;border-radius:3px;transition:background .25s;
}
.recruit-band:hover .recruit-btn{background:#dfe8f7;}
.recruit-btn svg{width:15px;height:15px;}
@media (max-width:768px){
  .recruit-title{font-size:23px;}
  .recruit-band-body{padding:40px 20px;}
  .recruit-text{font-size:14px;}
}

/* ====== Sublease: problem & solution ====== */
.section-problem{background:var(--bg-soft);}
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:0 auto 36px;max-width:1000px;}
.problem-card{
  background:#fff7f5;border-left:4px solid var(--accent);border-radius:6px;padding:24px 24px;
}
.problem-card h3{
  font-family:"Noto Serif JP",serif;font-size:17px;color:var(--accent-dark);
  margin:0 0 8px;font-weight:600;
}
.problem-card p{font-size:14px;color:var(--gray);line-height:1.85;margin:0;}
.solution-box{
  background:#fff;border:1px solid var(--blue-light);border-radius:12px;
  padding:36px 40px;max-width:1000px;margin:0 auto;box-shadow:0 6px 24px rgba(10,42,94,.06);
}
.solution-eyebrow{font-size:12.5px;letter-spacing:.12em;color:var(--blue);font-weight:600;margin:0 0 10px;}
.solution-box h3{
  font-family:"Noto Serif JP",serif;font-size:21px;color:var(--navy);
  margin:0 0 16px;font-weight:600;line-height:1.55;
}
.solution-box p{font-size:15px;color:var(--ink);line-height:2;margin:0;}
.solution-box strong{color:var(--blue);font-weight:700;}

/* ====== Sublease: support (residents) — 2-col cards ====== */
.section-support{background:#fff;}
.support-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;max-width:1000px;margin:0 auto;}
.support-card{
  background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:28px 30px;box-shadow:0 4px 18px rgba(10,42,94,.05);
  transition:transform .3s,box-shadow .3s;
}
.support-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(10,42,94,.1);}
.support-card h3{
  font-family:"Noto Serif JP",serif;font-size:17px;color:var(--navy);
  margin:0 0 12px;font-weight:600;line-height:1.5;
  display:flex;align-items:flex-start;gap:11px;
}
.support-card h3::before{
  content:"";flex:0 0 auto;width:9px;height:9px;margin-top:8px;
  border-radius:50%;background:var(--blue);
}
.support-card p{font-size:14px;color:var(--gray);line-height:1.95;margin:0;}

/* ====== Sublease: for companies — checklist ====== */
.section-for-companies{background:var(--bg-soft);}
.checklist{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:18px;}
.check-item{
  display:flex;gap:20px;align-items:flex-start;
  background:#fff;border-radius:10px;padding:26px 30px;
  box-shadow:0 4px 18px rgba(10,42,94,.05);
}
.check-ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;
}
.check-ico svg{width:20px;height:20px;}
.check-body h3{
  font-family:"Noto Serif JP",serif;font-size:17px;color:var(--navy);
  margin:0 0 7px;font-weight:600;line-height:1.5;
}
.check-body p{font-size:14px;color:var(--gray);line-height:1.95;margin:0;}

/* ====== About / Outline ====== */
.section-about{background:var(--white);}
.about-flex{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.about-message{color:var(--ink);font-size:15px;margin:0 0 30px;line-height:2;}
.about-table dl{margin:0;border-top:1px solid var(--line);}
.about-table dl > div{display:flex;border-bottom:1px solid var(--line);padding:16px 4px;}
.about-table dt{
  width:120px;flex-shrink:0;font-weight:600;color:var(--navy);font-size:14px;
}
.about-table dd{margin:0;font-size:14px;color:var(--ink);}

/* ====== Group ====== */
.section-group{background:var(--bg-soft);}
.group-list{
  display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px;max-width:840px;margin:0 auto;
}
.group-list li{border-bottom:1px solid var(--line);}
/* only the direct link/text is block — keep the inline arrow (.ext) on the same line */
.group-list li > a,.group-list li > span{
  display:block;padding:18px 4px;font-size:15px;color:var(--ink);transition:color .2s;
}
.group-list a:hover{color:var(--blue);}
.group-list .ext{display:inline;color:var(--blue);font-size:16px;margin-left:5px;vertical-align:-3px;}

/* ====== Contact CTA ====== */
.section-contact{
  background:linear-gradient(120deg,#0a2a5e 0%,#15407e 100%);
  color:#fff;text-align:center;
}
.contact-title{
  font-family:"Noto Serif JP",serif;font-size:30px;font-weight:600;
  margin:0 0 18px;letter-spacing:.05em;
}
.contact-text{margin:0 0 36px;opacity:.92;font-size:15px;}
.section-contact .btn-primary{background:#fff;color:var(--navy);}
.section-contact .btn-primary:hover{background:#dfe8f7;}
.contact-tel{margin:30px 0 0;font-size:15px;letter-spacing:.04em;}
.contact-tel a{font-weight:600;border-bottom:1px solid rgba(255,255,255,.5);}
.contact-note{margin:8px 0 0;font-size:12px;color:rgba(255,255,255,.5);letter-spacing:.02em;}

/* ====== Footer ====== */
.site-footer{background:#08203f;color:#cdd6e4;padding:56px 0 0;}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:40px;}
.footer-logo{height:40px;width:auto;background:#fff;padding:6px 10px;border-radius:3px;margin-bottom:18px;}
.footer-address{font-size:13px;line-height:1.9;margin:0;color:#aab6c9;}
.footer-nav ul{display:flex;flex-wrap:wrap;gap:14px 26px;}
.footer-nav a{font-size:13.5px;color:#cdd6e4;}
.footer-nav a:hover{color:#fff;}
/* Facebook 公式アイコン（青円＋白f・無加工／最小16px超・周囲に余白を確保） */
.footer-social{margin-top:20px;display:flex;gap:14px;align-items:center;}
.footer-sns{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;transition:opacity .2s,transform .2s;}
.footer-sns:hover{opacity:.85;transform:translateY(-2px);}
.footer-sns svg{width:34px;height:34px;display:block;}
/* X（旧Twitter）は単色グリフのため、他バッジと視覚的に揃うよう少し小さめに */
.footer-sns-x svg{width:22px;height:22px;}
.footer-copy{
  border-top:1px solid rgba(255,255,255,.12);text-align:center;
  padding:20px 0;font-size:12px;color:#a5b3c8;letter-spacing:.05em;
}

/* ====== Header dropdown (企業情報) ====== */
.gnav > ul{height:74px;}
.gnav > ul > li{display:flex;align-items:center;height:100%;}
.has-sub{position:relative;}
.nav-parent{display:inline-flex;align-items:center;gap:8px;}
.nav-parent::after{
  content:"";width:7px;height:7px;
  border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg) translateY(-2px);transition:transform .25s;
}
.has-sub:hover .nav-parent::after{transform:rotate(-135deg) translateY(2px);}
.subnav{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(10px);
  background:#fff;min-width:212px;padding:8px 0;
  border-top:2px solid var(--blue);box-shadow:0 14px 34px rgba(10,42,94,.14);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;z-index:50;
}
.has-sub:hover .subnav{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0);}
.subnav ul{display:block;height:auto;}
.subnav li{display:block;height:auto;}
.subnav a{
  display:block;padding:12px 24px;font-size:13.5px;font-weight:500;
  color:var(--navy);white-space:nowrap;letter-spacing:.02em;
}
.subnav a:hover{background:var(--bg-soft);color:var(--blue);}

/* ====== Header CTA (PC: tel + WEB button) ====== */
.header-right{display:flex;align-items:center;gap:30px;}
.header-cta{display:flex;align-items:center;gap:18px;}
.header-tel{display:flex;flex-direction:column;align-items:flex-end;line-height:1.15;}
.header-tel-label{font-size:11px;color:var(--gray);letter-spacing:.01em;margin-bottom:3px;}
.header-tel-num{font-family:"Noto Serif JP",serif;font-size:21px;font-weight:700;color:var(--navy);letter-spacing:.02em;}
.header-tel:hover .header-tel-num{color:var(--blue);}
.header-web-btn{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--accent);color:#fff;padding:12px 22px;border-radius:3px;
  font-weight:700;font-size:13.5px;letter-spacing:.03em;white-space:nowrap;
  box-shadow:0 3px 10px rgba(210,71,38,.3);
}
.header-web-btn:hover{background:var(--accent-dark);color:#fff;}
.header-web-btn .material-symbols-outlined{font-size:18px;}
.header-tel .material-symbols-outlined{font-size:18px;vertical-align:-3px;margin-right:2px;color:var(--navy);}
/* narrower desktop: keep it from overflowing */
@media (max-width:1120px){
  .header-right{gap:22px;}
  .header-cta{gap:14px;}
  .header-tel-num{font-size:18px;}
  .header-tel-label{font-size:10px;}
}

/* ====== Page head (sub pages) ====== */
.page-head{
  margin-top:74px;color:#fff;text-align:center;padding:66px 0 60px;
  background:linear-gradient(rgba(8,26,60,.74),rgba(8,26,60,.74)),
    url("../images/hero-poster.jpg") center/cover no-repeat;
}
/* per-page header background images */
.page-head.bg-business{
  background-image:linear-gradient(rgba(8,26,60,.7),rgba(8,26,60,.7)),url("../images/head_business.jpg");
}
.page-head.bg-company{
  background-image:linear-gradient(rgba(8,26,60,.66),rgba(8,26,60,.66)),url("../images/head_company.jpg");
}
.page-title-en{
  font-family:"Noto Serif JP",serif;font-size:38px;font-weight:600;
  letter-spacing:.12em;margin:0;line-height:1.2;
}
.page-title-ja{font-size:13px;letter-spacing:.24em;margin:14px 0 0;color:#cfe0ff;font-weight:500;}
.breadcrumb-bar{border-bottom:1px solid var(--line);background:#fff;}
.breadcrumb-bar .container{padding:14px 0;font-size:12.5px;color:var(--gray);}
.breadcrumb-bar a{color:var(--blue);}
.breadcrumb-bar a:hover{text-decoration:underline;}
.breadcrumb-bar .sep{margin:0 10px;color:#bbb;}
.breadcrumb-bar .current{color:var(--ink);}

/* ====== Tab navigation ====== */
.tab-nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:74px;z-index:40;}
.tab-nav ul{display:flex;justify-content:center;flex-wrap:wrap;}
.tab-nav li{flex:0 0 auto;}
.tab-btn{
  display:block;padding:20px 40px;font-size:14.5px;font-weight:500;color:var(--gray);
  position:relative;letter-spacing:.04em;
}
.tab-btn::after{
  content:"";position:absolute;left:0;bottom:-1px;width:100%;height:2px;
  background:var(--blue);transform:scaleX(0);transition:transform .25s;
}
.tab-btn:hover{color:var(--navy);}
.tab-btn.active{color:var(--navy);font-weight:700;}
.tab-btn.active::after{transform:scaleX(1);}

/* tabbed panels (all visible without JS; JS narrows to the active one) */
.tab-area.tabs-enabled .tab-panel{display:none;}
.tab-area.tabs-enabled .tab-panel.active{display:block;}

/* ====== Info table (会社概要) ====== */
.info-table{max-width:820px;margin:0 auto;border-top:1px solid var(--line);}
.info-table dl{margin:0;}
.info-table dl > div{display:flex;border-bottom:1px solid var(--line);padding:20px 4px;}
.info-table dt{width:170px;flex-shrink:0;font-weight:600;color:var(--navy);font-size:14.5px;}
.info-table dd{margin:0;font-size:14.5px;color:var(--ink);line-height:1.8;}

/* ====== Access (地図) ====== */
.access-flex{display:grid;grid-template-columns:330px 1fr;gap:44px;align-items:start;max-width:980px;margin:0 auto;}
.access-info dl{margin:0;border-top:1px solid var(--line);}
.access-info dl > div{border-bottom:1px solid var(--line);padding:18px 4px;}
.access-info dt{font-weight:600;color:var(--navy);font-size:12.5px;letter-spacing:.08em;margin-bottom:7px;}
.access-info dd{margin:0;font-size:14.5px;color:var(--ink);line-height:1.85;}
.access-map{width:100%;height:400px;border-radius:4px;overflow:hidden;box-shadow:0 6px 24px rgba(10,42,94,.1);}
.access-map iframe{display:block;width:100%;height:100%;border:0;}

/* ====== Guideline tab / 遵守の宣言 ====== */
.guideline-actions{text-align:center;margin-top:36px;}
.guideline-dl{display:inline-flex;align-items:center;gap:8px;text-align:left;line-height:1.5;}

.declaration{font-size:14.5px;color:var(--ink);line-height:1.95;text-align:left;}
.declaration > p{margin:0 0 14px;}
.decl-date{text-align:right;color:var(--gray);font-size:13.5px;margin:0 0 18px !important;}
.decl-title{
  font-family:"Noto Serif JP",serif;font-size:19px;color:var(--navy);font-weight:600;
  text-align:center;margin:0 0 24px;line-height:1.5;
}
.decl-ki{text-align:center;letter-spacing:.3em;margin:8px 0 16px !important;}
/* contain the long declaration so the page stays compact (scroll inside the box) */
.decl-scroll{
  max-height:60vh;overflow-y:auto;-webkit-overflow-scrolling:touch;
  border:1px solid var(--line);border-radius:6px;
  padding:24px 26px;background:#fff;
}
.decl-cat{
  font-size:16px;color:var(--navy);font-weight:600;margin:34px 0 16px;
  padding:0 0 8px 12px;border-left:4px solid var(--blue);border-bottom:1px solid var(--line);
}
.decl-cat::before{content:"○ ";}
.decl-subcat{font-size:14.5px;color:var(--navy);font-weight:600;margin:24px 0 12px;}
.decl-subnote{margin:20px 0 12px !important;color:var(--ink);}
.decl-item{display:flex;gap:12px;margin-bottom:15px;}
.decl-no{flex-shrink:0;width:26px;text-align:right;font-weight:700;color:var(--blue);}
.decl-body{flex:1;}
.decl-sub{list-style:none;margin:9px 0 0;padding:0;}
.decl-sub > li{position:relative;padding-left:15px;margin-bottom:7px;color:var(--gray);font-size:14px;line-height:1.85;}
.decl-sub > li::before{content:"・";position:absolute;left:0;color:var(--blue);}
.decl-paren{list-style:none;margin:9px 0 0;padding:0;}
.decl-paren > li{padding-left:2.2em;text-indent:-2.2em;margin-bottom:6px;color:var(--gray);font-size:14px;line-height:1.8;}
.decl-note{
  font-size:13px;color:var(--gray);background:var(--bg-soft);
  padding:11px 14px;border-radius:3px;margin:10px 0;line-height:1.8;
}
.decl-end{text-align:right;margin:24px 0 0 !important;}

/* ====== Company teaser links (top page) ====== */
.section-company-cta{background:#fff;}
.company-links{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:1000px;margin:0 auto;}
.company-link{
  position:relative;display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;
  background:#fff;padding:38px 20px 62px;border-radius:3px;border-top:3px solid var(--blue);
  box-shadow:0 4px 20px rgba(10,42,94,.06);transition:transform .3s,box-shadow .3s;
}
.company-link:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(10,42,94,.12);}
.company-link-en{font-size:12px;letter-spacing:.14em;color:var(--blue);font-weight:600;}
.company-link-ja{font-family:"Noto Serif JP",serif;font-size:18px;color:var(--navy);font-weight:600;}
.company-link .company-link-arrow{
  position:absolute;bottom:18px;left:50%;transform:translateX(-50%);
  width:36px;height:36px;padding:9px;box-sizing:border-box;
  border-radius:50%;background:var(--bg-soft);color:var(--blue);
  transition:background .25s,color .25s;
}
.company-link:hover .company-link-arrow{background:var(--navy);color:#fff;}

/* ====== Business page ====== */
.container-narrow{max-width:760px;}
.section-biz-lead{text-align:center;background:#fff;}
.biz-eyebrow{font-size:13px;letter-spacing:.18em;color:var(--blue);font-weight:600;margin:0 0 18px;}
.biz-lead-title{
  font-family:"Noto Serif JP",serif;font-size:30px;font-weight:600;color:var(--navy);
  line-height:1.6;margin:0 0 26px;letter-spacing:.04em;
}
.biz-lead-text{font-size:15.5px;color:var(--ink);line-height:2;margin:0;}
.biz-lead-text strong{color:var(--blue);font-weight:700;}

.section-strength{background:var(--bg-soft);}
/* anchor jump from the hero SCROLL button stops just below the fixed header */
#strength{scroll-margin-top:74px;}
/* image + text alternating rows */
.feature-rows{display:flex;flex-direction:column;gap:54px;max-width:1000px;margin:0 auto;}
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;}
.feature-row.reverse .feature-img{order:2;}
.feature-img img{width:100%;height:auto;display:block;border-radius:5px;box-shadow:0 8px 26px rgba(10,42,94,.12);}
.feature-no{font-family:"Noto Serif JP",serif;font-size:42px;font-weight:600;color:var(--blue);line-height:1;display:block;margin-bottom:14px;}
.feature-title{font-family:"Noto Serif JP",serif;font-size:23px;color:var(--navy);font-weight:600;margin:0 0 16px;line-height:1.55;}
.feature-text{font-size:14.5px;color:var(--gray);line-height:1.95;margin:0;}
.strength-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.strength-card{background:#fff;padding:40px 30px;border-radius:3px;box-shadow:0 4px 20px rgba(10,42,94,.06);}
.strength-no{font-family:"Noto Serif JP",serif;font-size:32px;color:var(--blue);font-weight:600;display:block;margin-bottom:14px;line-height:1;}
.strength-title{font-family:"Noto Serif JP",serif;font-size:19px;color:var(--navy);font-weight:600;line-height:1.5;margin:0 0 16px;}
.strength-text{font-size:14px;color:var(--gray);line-height:1.9;margin:0;}

.section-scheme{background:#fff;}
/* matching diagram (official SVG) */
.scheme-figure{max-width:920px;margin:0 auto;}
.scheme-figure img{width:100%;height:auto;display:block;}
.scheme{display:flex;align-items:stretch;justify-content:center;gap:10px;max-width:1000px;margin:0 auto;}
.scheme-col{flex:1;border:1px solid var(--line);border-radius:4px;padding:24px 18px;}
.scheme-label{font-weight:700;color:var(--navy);text-align:center;font-size:16px;margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line);}
.scheme-col ul{font-size:13px;color:var(--ink);line-height:1.8;}
.scheme-col li{padding:5px 0;}
.scheme-center{background:var(--navy);color:#fff;display:flex;flex-direction:column;justify-content:center;text-align:center;border-color:var(--navy);}
.scheme-center-logo{font-family:"Noto Serif JP",serif;font-size:22px;font-weight:700;margin:0 0 10px;letter-spacing:.04em;}
.scheme-center-note{font-size:11.5px;opacity:.85;margin:0;line-height:1.7;}
.scheme-arrow{flex:0 0 74px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;}
.scheme-arrow-text{font-size:10.5px;color:var(--blue);text-align:center;line-height:1.5;}
.scheme-arrow::after{content:"\2192";display:inline-block;font-size:26px;line-height:1;color:var(--blue-light);font-weight:700;}

.section-flow{background:var(--bg-soft);}
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.flow-step{background:#fff;border-radius:4px;overflow:hidden;box-shadow:0 4px 20px rgba(10,42,94,.06);}
.flow-step-head{background:var(--navy);color:#fff;padding:17px 22px;display:flex;align-items:center;gap:12px;}
.flow-step-no{font-size:12px;letter-spacing:.1em;opacity:.85;}
.flow-step-name{font-family:"Noto Serif JP",serif;font-size:18px;font-weight:600;}
.flow-list{padding:18px 24px;}
.flow-list li{position:relative;padding:11px 0 11px 22px;border-bottom:1px dashed var(--line);font-size:14px;color:var(--ink);}
.flow-list li:last-child{border-bottom:0;}
.flow-list li::before{content:"";position:absolute;left:0;top:17px;width:8px;height:8px;border-radius:50%;background:var(--blue);}

/* ====== Contact form ====== */
.section-form{background:#fff;}
.form-lead{text-align:center;margin-bottom:46px;}
.form-lead-title{font-family:"Noto Serif JP",serif;font-size:26px;color:var(--navy);font-weight:600;margin:0 0 16px;}
.form-lead-text{font-size:14.5px;color:var(--gray);line-height:1.95;margin:0;}
.form-lead-text a{color:var(--blue);font-weight:600;}
.lead-note{font-size:12px;color:#9aa0aa;margin:8px 0 0;letter-spacing:.02em;}
.form-row{margin-bottom:28px;}
.form-label{display:block;font-weight:600;color:var(--navy);font-size:14.5px;margin-bottom:12px;}
.req{display:inline-block;background:#c0392b;color:#fff;font-size:10px;font-weight:600;padding:2px 8px;border-radius:2px;margin-left:6px;vertical-align:middle;letter-spacing:.05em;}
.contact-form input[type=text],
.contact-form input[type=tel],
.contact-form input[type=email],
.contact-form select,
.contact-form textarea{
  width:100%;padding:13px 14px;border:1px solid #ccd2dc;border-radius:3px;font-size:15px;
  font-family:inherit;color:var(--ink);background:#fff;transition:border-color .2s,box-shadow .2s;
}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(28,79,160,.12);
}
.contact-form textarea{resize:vertical;}
.contact-form select{
  appearance:none;-webkit-appearance:none;padding-right:38px;cursor:pointer;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%231c4fa0' stroke-width='1.6' d='M1 1.5L6 6.5L11 1.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:12px;
}
.radio-group{display:flex;flex-wrap:wrap;gap:14px 28px;}
.radio,.checkbox{display:inline-flex;align-items:center;gap:8px;cursor:pointer;font-size:14.5px;color:var(--ink);}
.radio input,.checkbox input{width:18px;height:18px;accent-color:var(--blue);flex-shrink:0;}
.name-group{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.consent-box{border:1px solid var(--line);border-radius:4px;padding:26px;background:var(--bg-soft);text-align:center;}
.consent-title{font-weight:600;color:var(--navy);margin:0 0 12px;font-size:15px;}
.consent-text{font-size:13.5px;color:var(--gray);line-height:1.95;margin:0 0 18px;}
.consent-text a{color:var(--blue);font-weight:600;text-decoration:underline;}
.consent-box .checkbox{justify-content:center;font-weight:600;color:var(--navy);}
/* スパム対策用の honeypot（画面外に隠す。表示・タブ移動させない） */
.hp-field{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden;}
.form-error{color:#c0392b;text-align:center;font-size:14px;font-weight:600;margin:0 0 18px;}
.contact-form .is-invalid{border-color:#c0392b !important;background:#fdf4f3;}
.is-invalid-group{outline:1px solid #c0392b;outline-offset:8px;border-radius:3px;}
.form-submit{text-align:center;margin-top:36px;}
.form-submit .btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  width:100%;max-width:440px;padding:19px 32px;border-radius:5px;font-size:16px;font-weight:700;
  background:var(--accent);box-shadow:0 3px 10px rgba(210,71,38,.18);
}
.form-submit .btn-primary:focus-visible{outline:3px solid rgba(210,71,38,.4);outline-offset:2px;}
.form-submit .btn-primary:hover{background:var(--accent-dark);box-shadow:0 4px 12px rgba(210,71,38,.24);}
.form-submit .btn-primary .material-symbols-outlined{font-size:20px;}
.form-done{text-align:center;padding:46px 24px;background:var(--bg-soft);border-radius:4px;margin-top:10px;}
.form-done-title{font-family:"Noto Serif JP",serif;font-size:22px;color:var(--navy);font-weight:600;margin:0 0 12px;}
.form-done-text{font-size:14.5px;color:var(--gray);margin:0;line-height:1.9;}

/* ====== Privacy policy ====== */
.section-policy{background:#fff;}
.policy-intro{font-size:15px;color:var(--ink);line-height:2;margin:0 0 40px;}
.policy-block{margin-bottom:36px;}
.policy-h{
  font-size:18px;color:var(--navy);font-weight:600;margin:0 0 14px;
  padding-left:14px;border-left:4px solid var(--blue);line-height:1.5;
}
.policy-block p{font-size:14.5px;color:var(--ink);line-height:1.95;margin:0 0 12px;}
.policy-block p:last-child{margin-bottom:0;}
.policy-list{margin:14px 0;padding-left:24px;}
.policy-list li{font-size:14.5px;color:var(--ink);line-height:1.9;margin-bottom:8px;padding-left:4px;}
.policy-list.disc{list-style:disc;}
.policy-list:not(.disc){list-style:decimal;}
.policy-contact{background:var(--bg-soft);border-radius:4px;padding:24px;margin-top:16px;}
.policy-contact-label{font-weight:600;color:var(--navy);margin:0 0 10px;}
.policy-contact p{margin:0;font-size:14.5px;line-height:1.9;}
.policy-date{text-align:right;font-size:13px;color:var(--gray);margin:40px 0 0;}

/* ====== Inline SVG icons (self-hosted, no webfont — sized by surrounding font-size) ====== */
.material-symbols-outlined{
  width:1em;height:1em;display:inline-block;vertical-align:middle;flex-shrink:0;
}

/* ====== Scroll-to-top button ====== */
.scroll-top{
  position:fixed;right:26px;bottom:26px;z-index:80;
  width:50px;height:50px;border-radius:50%;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  background:var(--navy);color:#fff;box-shadow:0 6px 18px rgba(10,42,94,.3);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s,transform .25s,background .25s,visibility .25s;
}
.scroll-top.show{opacity:.95;visibility:visible;transform:translateY(0);}
.scroll-top:hover{background:var(--blue);opacity:1;}
.scroll-top .material-symbols-outlined{font-size:28px;}

.mobile-cta-bar{display:none;}

/* ====== Strength (asymmetric, top page) ====== */
.strength-layout{display:grid;grid-template-columns:290px 1fr;gap:64px;align-items:start;}
.strength-aside{position:sticky;top:104px;}
.strength-aside .section-title-en{text-align:left;}
.strength-aside .section-title-ja{text-align:left;}
.strength-aside-text{font-size:14px;color:var(--gray);line-height:1.95;margin:22px 0 0;}
.strength-rows{display:flex;flex-direction:column;}
.strength-row{display:flex;gap:30px;padding:30px 0;border-bottom:1px solid var(--line);align-items:flex-start;}
.strength-row:first-child{padding-top:0;}
.strength-row:last-child{border-bottom:0;padding-bottom:0;}
.strength-row-no{
  font-family:"Noto Serif JP",serif;font-size:46px;font-weight:600;color:var(--blue);
  line-height:1;flex-shrink:0;width:64px;
}
.strength-row-body h3{
  font-family:"Noto Serif JP",serif;font-size:20px;color:var(--navy);font-weight:600;
  margin:4px 0 12px;line-height:1.5;
}
.strength-row-body p{font-size:14.5px;color:var(--gray);line-height:1.95;margin:0;}

/* ====== Concept band (full-bleed) ====== */
.concept-band{
  position:relative;padding:96px 0;text-align:center;color:#fff;
  background:linear-gradient(rgba(8,24,56,.82),rgba(8,24,56,.82)),
    url("../images/hero-poster.jpg") center/cover no-repeat;
  background-attachment:fixed;
}
.concept-en{font-size:13px;letter-spacing:.26em;color:#cfe0ff;font-weight:600;margin:0 0 20px;}
.concept-title{
  font-family:"Noto Serif JP",serif;font-size:32px;font-weight:600;line-height:1.65;
  margin:0 0 24px;letter-spacing:.04em;
}
.concept-text{font-size:15px;line-height:2.05;margin:0;opacity:.94;}
.concept-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:32px;
  color:#fff;border:1px solid rgba(255,255,255,.55);padding:12px 30px;border-radius:2px;
  font-size:14px;font-weight:500;letter-spacing:.04em;transition:background .25s,border-color .25s;
}
.concept-link:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.concept-link .material-symbols-outlined{font-size:18px;}

.strength-aside-link{display:block;width:fit-content;min-width:220px;text-align:center;margin:30px auto 0;}
/* desktop shows the in-aside button; mobile shows the one placed after the rows */
.u-sp{display:none;}

/* ====== Flow timeline (top page) ====== */
.timeline{display:flex;justify-content:center;max-width:1000px;margin:0 auto;position:relative;}
/* one continuous line behind all nodes (avoids per-step lines overlapping nodes during the animation) */
.timeline::before{content:"";position:absolute;top:26px;left:16.66%;width:66.66%;height:2px;background:var(--line);z-index:0;}
.tl-step{flex:1;position:relative;display:flex;flex-direction:column;align-items:center;padding:0 14px;}
.tl-node{
  position:relative;z-index:1;width:54px;height:54px;border-radius:50%;
  background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:"Noto Serif JP",serif;font-size:22px;font-weight:600;
  box-shadow:0 4px 14px rgba(10,42,94,.3);margin-bottom:24px;
}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:6px;padding:24px 22px;
  width:100%;text-align:left;box-shadow:0 4px 18px rgba(10,42,94,.05);
}
.tl-step-label{font-size:11px;letter-spacing:.12em;color:var(--blue);font-weight:600;margin:0 0 6px;}
.tl-title{font-family:"Noto Serif JP",serif;font-size:19px;color:var(--navy);font-weight:600;margin:0 0 14px;}
.tl-list{margin:0;}
.tl-list li{position:relative;padding:8px 0 8px 18px;font-size:13.5px;color:var(--ink);border-bottom:1px dashed var(--line);}
.tl-list li:last-child{border-bottom:0;}
.tl-list li::before{content:"";position:absolute;left:0;top:15px;width:6px;height:6px;border-radius:50%;background:var(--blue);}

/* ====== Emphasis underline (draws when element hits viewport center) ====== */
.mark{
  font-weight:600;
  background-image:linear-gradient(#c4912f,#c4912f);
  background-repeat:no-repeat;
  background-position:0 100%;
  background-size:0% 3px;
  padding-bottom:3px;
  transition:background-size .7s cubic-bezier(.4,0,.2,1);
}
.mark.drawn{background-size:100% 3px;}
@media (prefers-reduced-motion: reduce){
  .mark{transition:none;background-size:100% 3px;}
}

/* larger emphasis (no underline). inline-block keeps the phrase from breaking mid-word */
.em{font-size:1.15em;font-weight:700;color:var(--navy);display:inline-block;}

/* hero underline: draws on load, before the scroll indicator appears */
.hero-mark{
  background-image:linear-gradient(#c4912f,#c4912f);
  background-repeat:no-repeat;background-position:0 100%;background-size:0% 4px;
  padding-bottom:6px;
  animation:heroLineDraw .7s cubic-bezier(.4,0,.2,1) forwards;
  animation-delay:1.7s;
}
@keyframes heroLineDraw{to{background-size:100% 4px;}}
@media (prefers-reduced-motion: reduce){
  .hero-mark{animation:none;background-size:100% 4px;}
}

/* ====== Scroll reveal animations ====== */
.reveal{
  opacity:0;transform:translateY(32px);
  transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);
}
.reveal.in-view{opacity:1;transform:none;}
.reveal-group > *{
  opacity:0;transform:translateY(32px);
  transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);
}
.reveal-group.in-view > *{opacity:1;transform:none;}
.reveal-group.in-view > *:nth-child(2){transition-delay:.13s;}
.reveal-group.in-view > *:nth-child(3){transition-delay:.26s;}
.reveal-group.in-view > *:nth-child(4){transition-delay:.39s;}
@media (prefers-reduced-motion: reduce){
  .reveal,.reveal-group > *{opacity:1 !important;transform:none !important;transition:none !important;}
}

/* ====== Responsive ====== */
@media (max-width:900px){
  .company-links{grid-template-columns:repeat(2,1fr);}
  .business-grid{grid-template-columns:1fr;}
  .problem-grid{grid-template-columns:1fr;}
  .support-grid{grid-template-columns:1fr;}
  .check-item{padding:22px 22px;gap:16px;}
  .solution-box{padding:26px 24px;}
  .solution-box h3{font-size:18px;}
  .sublease-promo{padding:34px 24px;}
  .sublease-promo-title{font-size:21px;}
  .sublease-promo-points{flex-direction:column;gap:10px;}
  .about-flex{grid-template-columns:1fr;gap:36px;}
  .group-list{grid-template-columns:1fr;}
  .hero-title{font-size:30px;}
}
@media (max-width:768px){
  .menu-toggle{display:flex;}
  .gnav{
    position:fixed;top:74px;right:0;width:74%;max-width:320px;height:calc(100vh - 74px);
    background:#fff;border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform .3s;padding:24px;
    box-shadow:-6px 0 24px rgba(0,0,0,.08);
  }
  .header-cta{display:none;}
  .header-right{gap:0;}
  .gnav.open{transform:translateX(0);}
  .gnav{overflow-y:auto;}
  .gnav > ul{flex-direction:column;align-items:stretch;gap:0;height:auto;}
  .gnav > ul > li{display:block;height:auto;width:100%;border-bottom:1px solid var(--line);}
  .gnav a{display:block;padding:16px 4px;width:100%;}
  .gnav a.nav-contact{background:none;color:var(--navy);padding:16px 4px;border-radius:0;}
  /* dropdown -> accordion on mobile */
  .has-sub .nav-parent{display:flex;align-items:center;justify-content:space-between;}
  .has-sub .nav-parent::after{margin-left:auto;}
  .has-sub:hover .nav-parent::after{transform:rotate(45deg) translateY(-2px);}
  .has-sub.open .nav-parent::after{transform:rotate(-135deg) translateY(2px);}
  .subnav{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    box-shadow:none;border-top:0;min-width:0;padding:0;background:var(--bg-soft);display:none;
  }
  .has-sub.open .subnav{display:block;}
  /* cancel the desktop hover positioning so a tap doesn't shift the submenu sideways */
  .has-sub:hover .subnav{transform:none;left:auto;}
  .subnav a{padding:14px 16px;font-size:14px;}
  .menu-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .menu-toggle.active span:nth-child(2){opacity:0;}
  .menu-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .pc-only{display:none;}
  .sp-only{display:inline;}
  /* full-screen hero on mobile: header + video = exactly one screen height */
  .hero{height:calc(100vh - 74px);height:calc(100svh - 74px);min-height:460px;}
  /* even, subtle darkening (replace the left-heavy desktop scrim) */
  .hero::after{background:linear-gradient(rgba(6,16,34,.4),rgba(6,16,34,.5));}
  .hero-image{position:absolute;inset:0;z-index:1;}
  .hero-image .hero-video,
  .hero-image img{width:100%;height:100%;object-fit:cover;}
  .hero-copy{left:6%;right:6%;}
  .hero-title{font-size:29px;line-height:1.5;}
  .hero-lead{font-size:13px;margin-bottom:12px;}
  .section{padding:58px 0;}
  .section-title-en{font-size:27px;}
  .footer-inner{flex-direction:column;gap:28px;}
  /* sub pages */
  .page-head{padding:46px 0 42px;}
  .page-title-en{font-size:30px;}
  .tab-nav ul{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;}
  .tab-btn{padding:16px 22px;font-size:13.5px;white-space:nowrap;}
  .info-table dl > div{flex-direction:column;gap:6px;padding:16px 4px;}
  .info-table dt{width:auto;font-size:13px;}
  .access-flex{grid-template-columns:1fr;gap:28px;}
  .access-map{height:300px;}
  .company-links{grid-template-columns:1fr;gap:14px;}
  .company-link{flex-direction:row;align-items:center;justify-content:flex-start;gap:0;padding:18px 20px;text-align:left;}
  .company-link-en{display:none;}
  .company-link-ja{font-size:16px;}
  .company-link .company-link-arrow{position:static;transform:none;width:22px;height:22px;padding:0;background:none;color:var(--blue);margin-left:auto;flex-shrink:0;}
  /* strength asymmetric -> stack */
  .strength-layout{grid-template-columns:1fr;gap:28px;}
  .strength-aside{position:static;}
  .strength-row{gap:18px;padding:24px 0;}
  .strength-row-no{font-size:36px;width:46px;}
  .strength-row-body h3{font-size:18px;}
  /* concept band */
  .concept-band{padding:62px 0;background-attachment:scroll;}
  .concept-title{font-size:22px;}
  .concept-text{font-size:14px;}
  /* timeline -> vertical */
  .timeline{flex-direction:column;max-width:460px;align-items:stretch;}
  .timeline::before{display:none;}
  .tl-step{flex-direction:row;align-items:flex-start;gap:18px;padding:0 0 30px;}
  .tl-step::before{content:"";position:absolute;top:54px;bottom:0;left:26px;width:2px;background:var(--line);z-index:0;}
  .tl-step:last-child::before{display:none;}
  .tl-node{margin-bottom:0;flex-shrink:0;}
  /* business page */
  .biz-lead-title{font-size:21px;}
  .feature-rows{gap:38px;}
  .feature-row{grid-template-columns:1fr;gap:20px;}
  .feature-row.reverse .feature-img{order:0;}
  .feature-title{font-size:19px;}
  .strength-grid{grid-template-columns:1fr;}
  .scheme{flex-direction:column;gap:6px;}
  .scheme-arrow{flex:0 0 auto;padding:4px 0;}
  .scheme-arrow::after{transform:rotate(90deg);}
  /* wide matching diagram: allow horizontal scroll so text stays readable */
  .scheme-figure{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .scheme-figure img{min-width:620px;}
  .flow{grid-template-columns:1fr;}
  /* contact form */
  .radio-group{flex-direction:column;gap:14px;}
  .name-group{grid-template-columns:1fr;}
  /* contact CTA title: keep on one line */
  .contact-title{font-size:21px;white-space:nowrap;}
  /* strength: move the "事業紹介を見る" button below the 3 reasons on mobile */
  .u-pc{display:none;}
  .u-sp{display:block;margin-top:14px;}
  /* scroll-top sits above the mobile CTA bar (when present) */
  .scroll-top{width:44px;height:44px;}
  body:has(.mobile-cta-bar) .scroll-top.show{bottom:72px;}
  .mobile-cta-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:90;
    height:58px;box-shadow:0 -2px 12px rgba(0,0,0,.14);
  }
  .mcta{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    color:#fff;font-size:11.5px;font-weight:600;letter-spacing:.04em;
  }
  .mcta svg{width:19px;height:19px;}
  .mcta .material-symbols-outlined{font-size:20px;}
  .mcta-tel{background:#2f7d4f;}
  .mcta-form{background:var(--accent);flex:1.5;}
  /* keep page content & footer clear of the fixed bar */
  body{padding-bottom:58px;}
  /* lift the hero scroll indicator above the bar */
  .scroll-indicator{bottom:74px;}
}
@media (max-width:420px){
  .hero-title{font-size:25px;}
  .hero-copy{top:46%;}
  .contact-title{font-size:19px;}
}