:root{
  --lab-primary:#234f3a;
  --lab-secondary:#1b1f1d;
  --lab-accent:#c9b27a;
  --lab-bg:#faf7f1;
  --lab-bg-soft:#f3ede1;
  --lab-text:#222620;
  --lab-muted:#6b6f68;
  --lab-line:#dcd3bf;
  --lab-white:#ffffff;
  --lab-radius:14px;
  --lab-shadow-sm:0 2px 4px rgba(27,31,29,0.08);
  --lab-shadow-lg:0 8px 24px rgba(27,31,29,0.10);
  --lab-maxw:1160px;
  --lab-font-body:"Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  --lab-font-mono:"IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--lab-font-body);
  color:var(--lab-text);
  background:var(--lab-bg);
  line-height:1.75;
  font-feature-settings:"palt";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--lab-primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4,h5{color:var(--lab-secondary);line-height:1.35;margin:0 0 0.6em;font-weight:700;letter-spacing:0.01em}
h1{font-size:clamp(1.8rem, 3vw + 1rem, 2.6rem)}
h2{font-size:clamp(1.5rem, 1.5vw + 1rem, 2rem)}
h3{font-size:1.25rem}
h4{font-size:1.08rem}
p{margin:0 0 1em}
.skip-link{position:absolute;left:-999px;top:0;background:var(--lab-secondary);color:#fff;padding:0.6rem 1rem;z-index:999}
.skip-link:focus{left:1rem;top:1rem}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,247,241,0.94);
  backdrop-filter:saturate(1.1) blur(6px);
  border-bottom:1px solid var(--lab-line);
}
.header-inner{
  max-width:var(--lab-maxw);margin:0 auto;
  padding:0.9rem 1.25rem;
  display:flex;justify-content:space-between;align-items:center;gap:1.5rem;
}
.brand{display:flex;align-items:center;gap:0.65rem;color:var(--lab-secondary)}
.brand:hover{text-decoration:none}
.brand-mark{
  width:42px;height:42px;border-radius:10px;
  background:var(--lab-primary);color:var(--lab-accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:1.3rem;font-weight:700;
  box-shadow:var(--lab-shadow-sm);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:1rem;font-weight:700}
.brand-sub{font-size:0.72rem;color:var(--lab-muted);font-family:var(--lab-font-mono)}
.site-nav{display:flex;align-items:center;gap:1.25rem}
.nav-list{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:1.25rem}
.nav-list a,.dropdown-toggle{
  background:none;border:0;cursor:pointer;
  color:var(--lab-secondary);font:inherit;font-size:0.95rem;
  padding:0.35rem 0;
}
.nav-list a:hover,.dropdown-toggle:hover{color:var(--lab-primary)}
.has-dropdown{position:relative}
.dropdown-toggle::after{content:" v";color:var(--lab-muted);font-family:var(--lab-font-mono);font-size:0.75rem;margin-left:0.3rem}
.dropdown-menu{
  position:absolute;top:calc(100% + 0.5rem);left:0;
  min-width:240px;background:var(--lab-white);
  border:1px solid var(--lab-line);border-radius:var(--lab-radius);
  box-shadow:var(--lab-shadow-lg);padding:0.5rem;
  list-style:none;margin:0;z-index:60;
}
.dropdown-menu li a{display:block;padding:0.55rem 0.75rem;border-radius:8px;font-size:0.9rem}
.dropdown-menu li a:hover{background:var(--lab-bg-soft);text-decoration:none}
.nav-cta{
  background:var(--lab-primary);color:var(--lab-white);
  padding:0.55rem 1.1rem;border-radius:999px;
  font-size:0.9rem;font-weight:500;
  border:1px solid var(--lab-primary);
}
.nav-cta:hover{background:#1b3f2e;text-decoration:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:0.75rem 1.4rem;border-radius:10px;border:1px solid transparent;
  font:inherit;font-weight:500;cursor:pointer;
  transition:background 0.2s, border-color 0.2s;
  text-align:center;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--lab-primary);color:#fff;border-color:var(--lab-primary)}
.btn-primary:hover{background:#1b3f2e;border-color:#1b3f2e}
.btn-ghost{background:transparent;color:var(--lab-primary);border-color:var(--lab-primary)}
.btn-ghost:hover{background:rgba(35,79,58,0.08)}
.btn-lg{padding:0.95rem 1.8rem;font-size:1.02rem}

.section-wrap{max-width:var(--lab-maxw);margin:0 auto;padding:3.5rem 1.25rem}
.eyebrow{
  display:inline-block;
  color:var(--lab-primary);
  font-family:var(--lab-font-mono);font-size:0.78rem;
  letter-spacing:0.14em;text-transform:uppercase;margin-bottom:0.6rem;
}
.section-head{margin-bottom:2rem;max-width:760px}
.section-lead{color:var(--lab-muted)}

.hero{background:var(--lab-bg)}
.hero-bento{
  max-width:var(--lab-maxw);margin:0 auto;padding:2.5rem 1.25rem 3.5rem;
  display:grid;gap:1rem;
  grid-template-columns:repeat(12,1fr);
  grid-template-areas:
    "tiles tiles tiles tiles tiles tiles visual visual visual visual visual visual"
    "copy copy copy copy copy copy copy visual visual visual visual visual";
}
.hero-tiles{grid-area:tiles;display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.tile{
  background:var(--lab-white);
  border:1px solid var(--lab-line);
  border-radius:var(--lab-radius);
  padding:1.1rem 1rem;
  box-shadow:var(--lab-shadow-sm);
  display:flex;flex-direction:column;gap:0.2rem;
  transition:border-color 0.2s, box-shadow 0.2s;
}
.tile:hover{border-color:var(--lab-primary);box-shadow:var(--lab-shadow-lg)}
.tile-label{font-size:0.78rem;color:var(--lab-muted);font-family:var(--lab-font-mono);letter-spacing:0.08em}
.tile-num{font-size:1.6rem;color:var(--lab-secondary);font-family:var(--lab-font-mono);font-weight:500}
.tile-caption{font-size:0.85rem;color:var(--lab-text)}
.hero-copy{grid-area:copy;align-self:end;padding-top:0.5rem}
.hero-copy h1{margin-bottom:1rem}
.hero-sub{color:var(--lab-muted);font-size:1.02rem;margin-bottom:1.5rem;max-width:640px}
.hero-cta{display:flex;gap:0.75rem;flex-wrap:wrap}
.hero-visual{
  grid-area:visual;
  min-height:560px;border-radius:var(--lab-radius);
  background-image:linear-gradient(135deg, rgba(27,31,29,0.15), rgba(27,31,29,0.05)), url('../visuals/bento-hero-study.jpg');
  background-size:cover;background-position:center;
  box-shadow:var(--lab-shadow-lg);
  border:1px solid var(--lab-line);
}
@media (max-width:900px){
  .hero-bento{
    grid-template-columns:1fr;
    grid-template-areas:
      "tiles"
      "visual"
      "copy";
  }
  .hero-tiles{grid-template-columns:repeat(3,1fr)}
  .hero-visual{min-height:320px}
}
@media (max-width:560px){
  .hero-tiles{grid-template-columns:1fr}
}

.about-block{background:var(--lab-white);border-top:1px solid var(--lab-line);border-bottom:1px solid var(--lab-line)}
.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:2rem;align-items:center}
.about-figure{margin:0;border-radius:var(--lab-radius);overflow:hidden;border:1px solid var(--lab-line);box-shadow:var(--lab-shadow-sm)}
.about-figure img{aspect-ratio:4/3;object-fit:cover;width:100%}
.about-copy p{color:var(--lab-text)}
@media (max-width:800px){.about-grid{grid-template-columns:1fr}}

.grid-block{background:var(--lab-bg)}
.bento-grid{
  display:grid;gap:1.1rem;
  grid-template-columns:repeat(3,1fr);
  grid-auto-rows:minmax(200px,auto);
}
.bento-card{
  background:var(--lab-white);border:1px solid var(--lab-line);
  border-radius:var(--lab-radius);overflow:hidden;
  box-shadow:var(--lab-shadow-sm);
  transition:border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.bento-card:hover{border-color:var(--lab-primary);box-shadow:var(--lab-shadow-lg);transform:translateY(-2px)}
.bento-card .card-link{display:flex;flex-direction:column;height:100%;color:inherit}
.bento-card .card-link:hover{text-decoration:none}
.bento-card figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:var(--lab-bg-soft)}
.bento-card figure img{width:100%;height:100%;object-fit:cover}
.card-body{padding:1.1rem 1.2rem 1.3rem;display:flex;flex-direction:column;gap:0.4rem}
.card-tag{
  font-family:var(--lab-font-mono);font-size:0.72rem;letter-spacing:0.12em;
  color:var(--lab-primary);text-transform:uppercase;
}
.card-body h3{margin:0.15rem 0}
.card-body p{color:var(--lab-muted);font-size:0.95rem;flex:1}
.card-cta{color:var(--lab-primary);font-size:0.92rem;font-weight:500;margin-top:0.4rem}
.bento-span-2{grid-column:span 2}
@media (max-width:900px){
  .bento-grid{grid-template-columns:repeat(2,1fr)}
  .bento-span-2{grid-column:span 2}
}
@media (max-width:560px){
  .bento-grid{grid-template-columns:1fr}
  .bento-span-2{grid-column:span 1}
}

.achievements-block{background:var(--lab-bg-soft)}
.stat-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.stat-tile{
  background:var(--lab-white);border:1px solid var(--lab-line);
  border-radius:var(--lab-radius);padding:1.3rem 1.2rem;
  box-shadow:var(--lab-shadow-sm);
}
.stat-num{display:block;font-family:var(--lab-font-mono);font-size:1.8rem;color:var(--lab-primary);font-weight:500;margin-bottom:0.3rem}
.stat-label{display:block;font-weight:500;margin-bottom:0.4rem}
.stat-note{display:block;font-size:0.82rem;color:var(--lab-muted);line-height:1.5}
.editorial-note{margin-top:1.2rem;font-size:0.85rem;color:var(--lab-muted);padding:0.9rem 1rem;border-left:3px solid var(--lab-accent);background:var(--lab-white);border-radius:0 8px 8px 0}
@media (max-width:900px){.stat-tiles{grid-template-columns:repeat(2,1fr)}}
@media (max-width:500px){.stat-tiles{grid-template-columns:1fr}}

.mission-block{background:var(--lab-white);border-top:1px solid var(--lab-line);border-bottom:1px solid var(--lab-line)}
.mission-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:2rem;align-items:center}
.mission-figure{margin:0;border-radius:var(--lab-radius);overflow:hidden;border:1px solid var(--lab-line);box-shadow:var(--lab-shadow-sm)}
.mission-figure img{aspect-ratio:4/3;object-fit:cover;width:100%}
@media (max-width:800px){.mission-grid{grid-template-columns:1fr}.mission-grid .mission-figure{order:-1}}

.glossary-block{background:var(--lab-bg)}
.glossary-list{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin:0}
.glossary-item{
  background:var(--lab-white);border:1px solid var(--lab-line);
  border-radius:var(--lab-radius);padding:1.1rem 1.2rem;
  box-shadow:var(--lab-shadow-sm);
}
.glossary-item dt{font-family:var(--lab-font-mono);color:var(--lab-primary);font-size:1rem;letter-spacing:0.04em;margin-bottom:0.3rem}
.glossary-item dd{margin:0;color:var(--lab-text);font-size:0.95rem}
.glossary-more{margin-top:1.2rem}
@media (max-width:700px){.glossary-list{grid-template-columns:1fr}}

.advantages-block{background:var(--lab-bg-soft)}
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.pillar{
  background:var(--lab-white);border:1px solid var(--lab-line);
  border-radius:var(--lab-radius);padding:1.3rem 1.2rem;
  box-shadow:var(--lab-shadow-sm);
}
.pillar h4{color:var(--lab-primary);margin-bottom:0.5rem}
.pillar p{color:var(--lab-muted);font-size:0.93rem;margin:0}
@media (max-width:900px){.pillars{grid-template-columns:repeat(2,1fr)}}
@media (max-width:500px){.pillars{grid-template-columns:1fr}}

.closing-cta{background:var(--lab-primary);color:#fff}
.closing-cta h2{color:#fff}
.closing-cta p{color:rgba(255,255,255,0.88)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.closing-cta .btn-primary{background:var(--lab-accent);border-color:var(--lab-accent);color:var(--lab-secondary)}
.closing-cta .btn-primary:hover{background:#b89c60;border-color:#b89c60}

.site-footer{background:var(--lab-secondary);color:#d3d5cf;padding:3rem 0 1.5rem}
.footer-inner{
  max-width:var(--lab-maxw);margin:0 auto;padding:0 1.25rem;
  display:grid;grid-template-columns:1fr 1fr;gap:2rem;
}
.footer-col h3{color:#fff;font-size:1.05rem;margin-bottom:0.9rem}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0.55rem}
.footer-col a{color:#d3d5cf}
.footer-col a:hover{color:var(--lab-accent)}
.contact-lines li{display:flex;gap:0.6rem;align-items:flex-start;font-size:0.92rem;line-height:1.6}
.contact-lines .ico{
  display:inline-block;min-width:36px;
  font-family:var(--lab-font-mono);font-size:0.72rem;
  color:var(--lab-accent);letter-spacing:0.08em;padding-top:0.15rem;
}
.policy-list li a{font-size:0.92rem}
.copyright{
  max-width:var(--lab-maxw);margin:2.5rem auto 0;padding:1.2rem 1.25rem 0;
  border-top:1px solid #2a2f2c;color:#9ea39a;font-size:0.82rem;text-align:center;
}
@media (max-width:700px){.footer-inner{grid-template-columns:1fr}}

.cookie-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:200;
  background:var(--lab-secondary);color:#f0ebde;
  border-top:3px solid var(--lab-accent);
  box-shadow:0 -4px 18px rgba(0,0,0,0.15);
}
.cookie-inner{
  max-width:var(--lab-maxw);margin:0 auto;padding:1.1rem 1.25rem;
  display:flex;gap:1.25rem;align-items:center;justify-content:space-between;flex-wrap:wrap;
}
.cookie-copy{flex:1;min-width:260px}
.cookie-copy h2{color:#fff;font-size:1.05rem;margin:0 0 0.3rem}
.cookie-copy p{margin:0;font-size:0.88rem;color:#d3d5cf}
.cookie-copy a{color:var(--lab-accent);text-decoration:underline}
.cookie-actions{display:flex;gap:0.6rem;flex-wrap:wrap}
.cookie-bar .btn-ghost{color:#f0ebde;border-color:rgba(240,235,222,0.5)}
.cookie-bar .btn-ghost:hover{background:rgba(255,255,255,0.08)}
.cookie-bar .btn-primary{background:var(--lab-accent);border-color:var(--lab-accent);color:var(--lab-secondary)}
.cookie-bar .btn-primary:hover{background:#b89c60;border-color:#b89c60}

.page-hero{
  background:var(--lab-bg-soft);border-bottom:1px solid var(--lab-line);
  padding:3rem 1.25rem 2.2rem;
}
.page-hero .inner{max-width:var(--lab-maxw);margin:0 auto}
.page-hero h1{margin-bottom:0.6rem}
.page-hero p{color:var(--lab-muted);max-width:720px}
.breadcrumb{font-size:0.84rem;color:var(--lab-muted);margin-bottom:1rem}
.breadcrumb a{color:var(--lab-muted)}
.breadcrumb a:hover{color:var(--lab-primary)}

.contact-wrap{max-width:var(--lab-maxw);margin:0 auto;padding:3rem 1.25rem}
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:2rem;align-items:start}
.contact-info{
  background:var(--lab-white);border:1px solid var(--lab-line);
  border-radius:var(--lab-radius);padding:1.6rem;box-shadow:var(--lab-shadow-sm);
}
.contact-info h2{font-size:1.2rem;margin-bottom:1rem}
.contact-info ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1rem}
.contact-info li{display:flex;gap:0.9rem;align-items:flex-start}
.contact-info .ico-badge{
  flex:none;width:38px;height:38px;border-radius:10px;
  background:var(--lab-bg-soft);color:var(--lab-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--lab-font-mono);font-size:0.72rem;letter-spacing:0.08em;
}
.contact-info .label{display:block;font-size:0.78rem;color:var(--lab-muted);font-family:var(--lab-font-mono);letter-spacing:0.08em;margin-bottom:0.1rem}
.contact-info .value{color:var(--lab-text);font-size:0.98rem;line-height:1.6}
.contact-form{
  background:var(--lab-white);border:1px solid var(--lab-line);
  border-radius:var(--lab-radius);padding:1.8rem;box-shadow:var(--lab-shadow-lg);
}
.form-row{display:flex;flex-direction:column;gap:0.4rem;margin-bottom:1.1rem}
.form-row label{font-size:0.9rem;font-weight:500}
.form-row input,.form-row textarea{
  font:inherit;padding:0.7rem 0.85rem;border:1px solid var(--lab-line);
  border-radius:10px;background:var(--lab-bg);color:var(--lab-text);
  transition:border-color 0.2s, box-shadow 0.2s;
}
.form-row input:focus,.form-row textarea:focus{
  outline:0;border-color:var(--lab-primary);
  box-shadow:0 0 0 3px rgba(35,79,58,0.15);
  background:#fff;
}
.form-row textarea{min-height:150px;resize:vertical}
.consent-row{display:flex;gap:0.5rem;align-items:flex-start;font-size:0.85rem;color:var(--lab-muted);margin-bottom:1.1rem}
.consent-row a{color:var(--lab-primary);text-decoration:underline}
.map-wrap{
  max-width:var(--lab-maxw);margin:0 auto 3rem;padding:0 1.25rem;
}
.map-frame{
  position:relative;width:100%;
  border-radius:var(--lab-radius);overflow:hidden;
  border:1px solid var(--lab-line);box-shadow:var(--lab-shadow-sm);
}
.map-frame iframe{display:block;width:100%;height:420px;border:0}
.map-external{margin-top:0.8rem;font-size:0.88rem}
@media (max-width:800px){.contact-grid{grid-template-columns:1fr}.map-frame iframe{height:320px}}

.article-body{max-width:820px;margin:0 auto;padding:2.5rem 1.25rem}
.byline{font-family:var(--lab-font-mono);font-size:0.85rem;color:var(--lab-muted);margin-bottom:1.5rem;letter-spacing:0.04em}
.article-body h1{margin-bottom:0.8rem}
.article-body h2{margin-top:2.2rem;padding-top:1.2rem;border-top:1px solid var(--lab-line)}
.article-body h3{margin-top:1.6rem}
.article-body figure{margin:1.8rem 0;border-radius:var(--lab-radius);overflow:hidden;border:1px solid var(--lab-line);box-shadow:var(--lab-shadow-sm)}
.article-body figure img{aspect-ratio:16/9;object-fit:cover;width:100%}
.article-body figcaption{padding:0.6rem 1rem;font-size:0.82rem;color:var(--lab-muted);background:var(--lab-bg-soft);font-style:normal}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
.article-body li{margin-bottom:0.35em}
.prev-next{
  max-width:820px;margin:2rem auto 3rem;padding:1.5rem 1.25rem;
  border-top:1px solid var(--lab-line);
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
}
.prev-next a{
  display:flex;flex-direction:column;gap:0.3rem;
  padding:0.9rem 1.1rem;border:1px solid var(--lab-line);
  border-radius:10px;background:var(--lab-white);
  flex:1;min-width:240px;color:var(--lab-text);
  transition:border-color 0.2s, box-shadow 0.2s;
}
.prev-next a:hover{border-color:var(--lab-primary);box-shadow:var(--lab-shadow-sm);text-decoration:none}
.prev-next .direction{font-family:var(--lab-font-mono);font-size:0.72rem;color:var(--lab-muted);letter-spacing:0.1em;text-transform:uppercase}
.prev-next .title{font-weight:500;color:var(--lab-primary)}
.prev-next .next{text-align:right;align-items:flex-end}

.list-page{max-width:var(--lab-maxw);margin:0 auto;padding:2.5rem 1.25rem 4rem}
.list-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
@media (max-width:700px){.list-grid{grid-template-columns:1fr}}

.policy-page{max-width:820px;margin:0 auto;padding:2.5rem 1.25rem 4rem}
.policy-page h2{margin-top:2rem}
.policy-page h3{margin-top:1.4rem}
.policy-page dl{display:grid;grid-template-columns:160px 1fr;gap:0.7rem 1.2rem;margin:1rem 0}
.policy-page dt{font-weight:500;color:var(--lab-secondary)}
@media (max-width:600px){.policy-page dl{grid-template-columns:1fr}}

.modal-backdrop{
  position:fixed;inset:0;background:rgba(27,31,29,0.55);
  display:flex;align-items:center;justify-content:center;
  z-index:300;padding:1rem;
}
.modal-card{
  background:#fff;border-radius:var(--lab-radius);
  max-width:440px;width:100%;padding:1.8rem;
  box-shadow:var(--lab-shadow-lg);text-align:center;
}
.modal-card h3{margin-bottom:0.6rem}
.modal-card p{color:var(--lab-muted);margin-bottom:0.3rem}
.modal-close{margin-top:1rem}

.focus-visible:focus-visible,button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--lab-primary);outline-offset:2px;
}