@charset "utf-8";

*, *::before, *::after {
    box-sizing: border-box;
}

a {
    text-decoration: none;
}

.br_pc {
    display: block;
}
.br_res {
    display: none;
}

/* :root{
  --bg:#ffffff;
  --bg-soft:#efeae0;
  --surface:#ffffff;
  --line:#c8c8c8;
  --text:#202020;
  --muted:#666666;
  --accent:#286768;
  --accent-soft:#b7d7d5;
  --accent-2:#5a2042;
  --max:1120px;
  --radius:28px;
  --shadow:0 10px 32px rgba(0,0,0,.05);
} */

:root{
  --bg:#f3f3f0;
  --bg-soft:#ecece8;
  --surface:#ffffff;
  --surface-2:#f8f8f5;
  --line:#d8d8d2;
  --line-strong:#bdbdb5;
  --text:#111111;
  --muted:#66665f;
  --muted-2:#8a8a82;
  --accent:#111111;
  --max:1160px;
  --radius:24px;
  --radius-sm:18px;
  --shadow:0 3px 15px rgba(17,17,17,.06);
  --shadow-soft:0 6px 10px rgba(17,17,17,.1);
  --transition:cubic-bezier(.22,1,.36,1);
  --dots-s:1.25em;
  --dots-w:900;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",sans-serif;
  color:var(--text);
  background:
    linear-gradient(180deg, rgba(255,255,255,.4), rgba(255,255,255,0)),
    var(--bg);
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{
  transition:opacity .25s var(--transition), 
  transform .25s var(--transition), 
  border-color .25s var(--transition), 
  background-color .25s var(--transition), 
  color .25s var(--transition), 
  box-shadow .25s var(--transition);
}
a:hover{
  opacity:.96;
}
img{
  max-width:100%; 
  height:auto; 
  display:block;
}
.l-container{
  width:min(var(--max), calc(100% - 8rem)); 
  margin-inline:auto;
}
.site-header{
  position:sticky; 
  top:0; 
  z-index:100;
  /* backdrop-filter:blur(14px); */
  opacity: 0.95;
  /* background:rgba(243,243,240,.76); */
  border-bottom:1px solid rgba(17,17,17,.08);

  /* 市松模様 */
  --size: 1.8rem;
  --color1: #ffffff;
  --color2: #f7f7f7;

  background-color: var(--color1);
  background-image:
    linear-gradient(45deg,
      var(--color2) 25%,
      transparent 25%,
      transparent 75%,
      var(--color2) 75%,
      var(--color2)
    ),
    linear-gradient(45deg,
      var(--color2) 25%,
      transparent 25%,
      transparent 75%,
      var(--color2) 75%,
      var(--color2)
    );
  background-position: 0 0, var(--size) var(--size);
  background-size: calc(var(--size) * 2) calc(var(--size) * 2);
  /* 市松模様終了 */
}
.dots {
  font-size: var(--dots-s);
  font-weight: var(--dots-w);
}
.subheading-h3 {
  font-size: 1.35rem;
  font-weight: 700;
}
.site-header__inner{
  display:flex; 
  align-items:center; 
  justify-content:space-between; 
  gap:24px; 
  min-height:82px;
}
.site-logo a,
.site-footer .site-logo{
  font-size:1.18rem;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.site-logo img {
  width: 14rem;
}
.site-nav__list{
  display:flex; 
  align-items:center; 
  gap:26px;}
.site-nav__list a:not(.site-nav__cta){
  font-size:.95rem;
  color:var(--muted);
  position:relative;
}
.site-nav__list a:not(.site-nav__cta)::after{
  content:""; 
  position:absolute; 
  left:0; 
  right:0; 
  bottom:-10px; 
  height:1px; 
  background:var(--text);
  transform:scaleX(0); 
  transform-origin:left center; 
  transition:transform .28s var(--transition);
}
.site-nav__list a:not(.site-nav__cta):hover{
  color:var(--text);
}
.site-nav__list a:not(.site-nav__cta):hover::after{
  transform:scaleX(1);
}
.site-nav__cta,.c-button{
  display:inline-flex; 
  align-items:center; 
  justify-content:center; 
  gap:10px;
  min-height:48px; 
  padding:0 22px; 
  border-radius:999px;
  /* border:1px solid var(--muted); */
  font-size:.92rem; 
  font-weight:600; 
  letter-spacing:.04em;
}
.site-nav__cta,.c-button--primary{
  background:var(--text); 
  color:#fff; 
  box-shadow:var(--shadow-soft);
}
.c-button--secondary{
  /* background:transparent;  */
  background-color: #ffffffcc;
  color:var(--text);
  border:1px solid var(--muted);
}
.site-nav__cta:hover,.c-button:hover{
  transform:translateY(-1px); 
  box-shadow:0 6px 10px rgba(17, 17, 17, 0.2);
  font-weight:800; 
}
.c-button--secondary:hover{
  background:var(--muted); 
  color:#fff;
}
.nav-toggle{
  display:none; 
  width:44px; 
  height:44px; 
  border:1px solid rgba(17,17,17,.12); 
  border-radius:50%; 
  background:rgba(255,255,255,.55); 
  position:relative;}
.nav-toggle:before,.nav-toggle:after,.nav-toggle span{
  content:""; 
  position:absolute; 
  left:11px; 
  right:11px; 
  height:1.5px; 
  background:var(--text); 
  transition:transform .25s var(--transition), opacity .25s var(--transition), top .25s var(--transition);
}
.nav-toggle:before{
  top:14px
}
.nav-toggle span{
  top:21px
}
.nav-toggle:after{
  top:28px
}
.nav-toggle.is-open:before{
  top:21px; 
  transform:rotate(45deg)
}
.nav-toggle.is-open span{
  opacity:0
}
.nav-toggle.is-open:after{
  top:21px; 
  transform:rotate(-45deg)
}

.section-fv,.section-pagehead{
  padding:8rem 0 6rem; 
  position:relative; 
  overflow:hidden;
  background-image: url(img-section-fv.png);
  background-size: cover;
  background-position: right;
}
/* .section-fv::before,.section-pagehead::before{
  content:""; 
  position:absolute; 
  inset:0;
  background:
    radial-gradient(circle at 12% 24%, rgba(17,17,17,.05), transparent 24%),
    radial-gradient(circle at 82% 16%, rgba(17,17,17,.04), transparent 20%),
    linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,0));
  pointer-events:none;
} */
/* .section-pagehead{
  background:linear-gradient(180deg,var(--bg-soft), rgba(236,236,232,.2));
} */
.section,.page-section{
  padding: 6rem 0; 
  position:relative;
}
.section + .section,
.page-section + .page-section{
  border-top:1px solid rgba(17,17,17,.08);
}
/* section各背景 */
#philosophy {
  overflow:hidden;
  background-image: url(img-top-philosophy.png);
  background-size: cover;
  background-position: right;
  background-repeat: no-repeat;
}
#featured-project {
  overflow:hidden;
  background-image: url(img-top-wafflesaurus.svg);
  background-size: 150%;
  background-position: top center;
  background-color: rgba(255, 255, 255, 0.9);
  background-blend-mode: lighten;
  background-repeat: no-repeat;
}
#choit {
  overflow:hidden;
  background-image: url(img-choit-bg.png);
  background-size: 150%;
  background-position: top center;
  background-color: rgba(255, 255, 255, 0.5);
  background-blend-mode: lighten;
  background-repeat: no-repeat;
}
#service-menu {
  overflow:hidden;
  background-image: url(img-top-why_dots.png);
  background-size: cover;
  background-position: -0rem 0rem;
  background-color: rgba(255, 255, 255, 0.7);
  background-blend-mode: lighten;
  background-repeat: no-repeat;
  
}
#product-overview {
  overflow:hidden;
  background-image: url(img-consultation.png);
  background-size: cover;
  background-position: left;
  background-repeat: no-repeat;
}
#cta {
  overflow:hidden;
  background-image: url(img-flow.png);
  background-size: cover;
  background-position: right;
  background-repeat: no-repeat;
}
#about {
  overflow:hidden;
  background-image: url(img-about.png);
  background-size: auto 100%;
  background-position: left;
  background-repeat: no-repeat;
}
#product-future {
  overflow:hidden;
  background-image: url(img-future.png);
  background-size: auto 100%;
  background-position: left;
  background-repeat: no-repeat;
}
#guide {
  overflow:hidden;
  background-image: url(img-guide.png);
  background-size: auto 130%;
  background-position: -5rem center;
  background-repeat: no-repeat;
}
#works-policy {
  overflow:hidden;
  background-image: url(img-work-overview.png);
  background-size: auto 110%;
  background-position: -5rem bottom;
  background-repeat: no-repeat;
}


.section-alt{
  /* background:linear-gradient(180deg, rgba(255,255,255,.35), rgba(255,255,255,0)); */
  background: #ffffff;
}
.block-heading{
  margin-bottom:36px; 
  max-width:760px;
}
.block-heading__en,.kv-small{
  font-size:.74rem; 
  letter-spacing:.26em; 
  text-transform:uppercase; 
  color:var(--muted-2); 
  margin-bottom:14px;
}
.kv-small img {
  width: 6rem;
}
.block-heading__ja{
  font-size:clamp(1.9rem, 3vw, 3.2rem); 
  line-height:1.18; 
  letter-spacing:.02em; 
  font-weight:700;
  white-space: nowrap;
}
.feature-grid,.two-col{
  display:grid; 
  grid-template-columns:1.05fr .95fr; 
  gap:52px; 
  align-items:center;
}
.fv-grid{
  display:grid; 
  grid-template-columns: min-content 1fr; 
  gap:52px; 
  align-items:center;
}
.left-blank-grid{
  display:grid; 
  grid-template-columns: 1fr min-content; 
  gap:52px; 
  align-items:center;

  /* background: #6b1616; */
}
.fv-copy h1,.pagehead-copy h1{
  color:#2c2c28; 
  font-size:clamp(3.2rem, 5.6vw, 6.2rem); 
  line-height:1.1; 
  letter-spacing:-.01em; 
  margin-bottom:24px; 
  max-width:10ch;
  white-space: nowrap;
  text-shadow:
    0 0 2rem white,
    0 0 1rem white,
    0 0 1rem white,
    0 0 0.4rem white;
}
.pagehead-copy h1{
  max-width:none;
}
.lead{
  font-size:1.25rem; 
  font-weight: 600;
  color:#2c2c28; 
  max-width:42em;
  padding-left: 2rem;
  white-space: nowrap;
  text-shadow:
    0 0 2rem white,
    0 0 1rem white,
    0 0 1rem white,
    0 0 0.4rem white;
}
.text-block{
  display:grid; 
  gap:20px; 
  max-width:72rem;
}
.philosophy-statement {
  font-size: 1.8rem;
  font-weight: 500;
  line-height: 2.6rem;
  white-space: nowrap;
}
.text-block p,.page-section p,.section p,.section li{
  color:#2b2b27;
}
.note{
  font-size:.93rem; 
  color:var(--muted);
  padding-top: 1rem;
  line-height: 1.35rem;
}
.fv-actions,.cta-actions{
  display:flex; 
  gap:12px; 
  flex-wrap:wrap; 
  margin-top:20px;
  /* padding-left: 2rem; */
  justify-content: center;
}
.fv-visual,.feature-visual,.photo-placeholder,
.diagram-placeholder,.material-card__visual{
  position:relative; 
  overflow:hidden;
  border:1px solid rgba(17,17,17,.08);
  /* background:
    linear-gradient(135deg, rgba(255,255,255,.85), rgba(236,236,232,.9)),
    repeating-linear-gradient(90deg, rgba(17,17,17,.03) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(0deg, rgba(17,17,17,.03) 0 1px, transparent 1px 24px); */
}
.fv-visual,.feature-visual,
.photo-placeholder,.diagram-placeholder{
  width: 100%;
  height:auto; 
  border-radius:1rem; 
  box-shadow:var(--shadow);
}
.fv-visual::before,.feature-visual::before,
.photo-placeholder::before,.diagram-placeholder::before,
.material-card__visual::before {
  content:""; 
  position:absolute; 
  inset:10px; 
  border:1px solid rgba(255, 255, 255, 0.5); 
  border-radius:.75rem;
}
.feature-visual img {
  /* width: auto; */
  max-height:400px; 
  aspect-ratio: auto 2/3;
  object-fit: cover;
}
.material-card__visual img {
  /* width: auto; */
  max-height:400px; 
  aspect-ratio: auto 2/3;
  object-fit: cover;
}
/* .fv-visual::after{
  content:"materials / layout / product";
  position:absolute; 
  left:28px; 
  bottom:24px; 
  color:var(--muted); 
  font-size:.78rem; 
  letter-spacing:.2em; 
  text-transform:uppercase;
} */
/* .feature-visual::after,.diagram-placeholder::after,.photo-placeholder::after{
  content:"visual";
  position:absolute; 
  right:26px; 
  bottom:24px; 
  color:rgba(17,17,17,.28); 
  font-size:.92rem; 
  letter-spacing:.2em; 
  text-transform:uppercase;
} */
.grid-3{
  display:grid; 
  grid-template-columns:repeat(3,1fr); 
  gap:24px;
}
.grid-2{
  display:grid; 
  grid-template-columns:repeat(2,1fr); 
  gap:24px;
}
.card,.material-card,.work-card,.form,.table{
  background:rgba(255,255,255,.82);
  /* border:1px solid rgba(17,17,17,.08); */
  border-radius:24px;
  box-shadow:var(--shadow);
  /* backdrop-filter:blur(6px); */
}
.card-sustenable {
  overflow:hidden;
  background-image: url(img-top-business_01_sustainable.png);
  background-size: cover;
  background-position: top center;
  background-color: rgba(255, 255, 255, 0.7);
  background-blend-mode: lighten;
}
.card-design {
  overflow:hidden;
  background-image: url(img-top-business_02_design_dtp.png);
  background-size: cover;
  background-position: top center;
  background-color: rgba(255, 255, 255, 0.7);
  background-blend-mode: lighten;
}
.card-product {
  overflow:hidden;
  background-image: url(img-top-business_03_product.png);
  background-size: cover;
  background-position: top center;
  background-color: rgba(255, 255, 255, 0.7);
  background-blend-mode: lighten;
}

.flow-card {
  background:rgba(255,255,255,.82);
  border:1px solid rgba(17,17,17,.08);
  border-radius:6px;
  box-shadow:var(--shadow);
  /* backdrop-filter:blur(6px); */
  padding: 0.75rem 1rem 1.5rem;
}
.card{
  padding:30px;
}
.card h3{
  font-size:1.75rem; 
  font-weight:200;
  line-height:1.4; 
  margin-bottom:12px;
  border-bottom: var(--line) 1px solid;
}
.flow-card h4{
  font-size:1.5rem; 
  font-weight:400;
  line-height:1;
  text-align: center;
}
.flow-card-bg {
  background: var(--surface-2);
}

.card:hover,.material-card:hover,
.flow-card:hover,.work-card:hover, table:hover{
  transform:translateY(-3px); 
  box-shadow:0 6px 20px rgba(111, 106, 70, 0.384);
  transition: all 0.3s 0s ease-in-out;
}
.list{
  display:grid; 
  gap:16px; 
  /* max-width:900px; */
}
.list li{
  padding-left:1.35em; 
  position:relative;
}
.list li::before{
  content:"■"; 
  position:absolute; 
  left:0; 
  top:0; 
  color:var(--muted-2);
}
.flow{
  display:grid; 
  grid-template-columns:repeat(4,1fr); 
  gap:16px;
}
/* FLOW Step11 version */
/* .flow{
  display:grid; 
  grid-template-columns:repeat(6,1fr); 
  gap:16px;
} */
/* FLOW Step11 version 終了 */
.flow .card{
  padding:24px; 
  min-height:150px;
}
.flow-step{
  font-size:.72rem; 
  text-transform:uppercase; 
  letter-spacing:.22em; 
  color:var(--muted-2); 
  margin-bottom:10px;
  text-align: center;
}

.choit-logo{
  width: max-content;
  display:grid; 
  grid-template-columns:repeat(2,1fr); 
  gap:1.5rem; 
  margin: 0.75rem auto;
}
.choit-logo img{
  width: auto;
  height: 6rem;
}
.choit-link{
  width: 80%;
  display: flex;
  flex-direction: row;
  /* display:grid;  */
  /* grid-template-columns:repeat(5,1fr);  */
  gap:1.5rem; 
  margin: 0 auto;
  align-items: center;
}
.sns-logo img{
  width: auto;
  height: 5rem;
  object-fit: contain;
}
.ec-logo img{
  width: 12rem;
  height: auto;
  object-fit: contain;
}


.material-grid{
  display:grid; 
  grid-template-columns:repeat(3,1fr); 
  gap:24px; 
  margin-top:30px;
}
.material-card{
  overflow:hidden;
}
.material-card__visual{
  height:188px;
}
.material-card__visual::after{
  content:attr(data-label); 
  position:absolute; 
  right:1.2rem; 
  bottom:0.5rem;
  font-size:2.15rem; 
  font-weight:700; 
  color:rgba(17,17,17,.10); 
  letter-spacing:.08em;
}
.material-card__body{
  padding:24px;
}
.material-card__body h3{
  margin-bottom:10px; 
  font-size:1.08rem;
}
.spec-list{
  display:grid; 
  gap:10px;
}
.spec-list li{
  padding:14px 16px; 
  background:rgba(248,248,245,.9); 
  border:1px solid rgba(17,17,17,.07); 
  border-radius:16px; 
  color:#2e2e2a;
  line-height: 1.45rem;
}
.table{
  width:100%; 
  overflow:hidden;
}
.table th,.table td{
  padding:18px 20px; 
  text-align:left; 
  vertical-align:top; 
  border-top:1px solid rgba(17,17,17,.08);
}
.table tr:first-child th,.table tr:first-child td{
  border-top:none;
}
.table th{
  width:24%; 
  background:rgba(248,248,245,.95); 
  font-weight:600; 
  color:#1b1b18;
}
.timeline{
  display:grid; 
  gap:18px; 
  margin-top:24px;
}
.timeline__item{
  display:grid; 
  grid-template-columns:120px 1fr; 
  gap:20px; 
  padding:18px 0; 
  border-top:1px solid rgba(17,17,17,.08);
}
.timeline__item:first-child{
  border-top:none;
}
.timeline__year{
  font-weight:700; 
  color:#1b1b18;
}
.form{
  display:grid; 
  gap:18px; 
  padding:30px;
}
.form-group{
  display:grid; 
  gap:8px;
}
.form-group label{
  font-weight:600; 
  font-size:.95rem;
}
.form-group input,.form-group textarea,.form-group select{
  width:100%; 
  min-height:54px; 
  padding:14px 16px; 
  border:1px solid rgba(17,17,17,.12); 
  border-radius:16px; 
  background:#fff; 
  color:var(--text);
}
.form-group textarea{
  min-height:180px; 
  resize:vertical;
}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{
  outline:none; 
  border-color:var(--text); 
  box-shadow:0 0 0 4px rgba(17,17,17,.06);
}
.work-grid{
  display:grid; 
  grid-template-columns:repeat(2,1fr); 
  gap:24px;
}
.work-card{
  overflow:hidden;
}
.work-card__thumb{
  /* min-width: 45vw; */
  height: auto;
}
/* .work-card__thumb::after{
  content:"sample"; 
  position:absolute; 
  right:18px; 
  bottom:14px; 
  font-size:.76rem; 
  color:rgba(17,17,17,.32); 
  letter-spacing:.22em; 
  text-transform:uppercase;
} */
.work-card__thumb img {
  /* width: auto; */
  /* max-height:100%;  */
  /* aspect-ratio: auto 2/3; */
  /* object-fit: contain; */
  object-position: center center;
}
.work-card__body{
  height: 100%;
  padding:22px;
  line-height: 1.65rem;
  background:var(--bg);
}
.work-card__body a {
  position: relative;
  color: blue;
  font-weight: 700;
}
.work-card__body a:hover {
  color: rgb(255, 0, 0);
  font-weight: 700;
}

.work-card__body a::after{
  content:""; 
  position:absolute; 
  left:0; 
  right:0; 
  bottom:-4px; 
  height:1px; 
  background:rgb(255, 0, 0);
  transform:scaleX(0); 
  transform-origin:left center; 
  transition:transform .28s var(--transition);
}
.work-card__body a:hover::after{
  transform:scaleX(1);
}
.work-card__body strong {
  font-size: 1.25rem;
}


.work-card__category{
  font-size:.72rem; 
  letter-spacing:.22em; 
  text-transform:uppercase; 
  color:var(--muted-2); 
  margin-bottom:0.25rem;
}
.work-card__title{
  font-size:.9rem; 
  line-height:1.3; 
  color: var(--muted);
  margin-bottom:8px;
}
.grid-text {
  min-width: 40vw;
}

#consultation {
  background:var(--bg);
  background-image:
   linear-gradient(#fff 50%, transparent 50%,transparent 100%)
   ;
  background-size: 0.3rem 0.3rem;
}

.background-dot {
  /* background-color: #fff; */
  background-image:
    radial-gradient(#ebebeb 40%, transparent 50%);
  background-size: 0.35rem 0.35rem;
}




/* フッター */
.site-footer{
  padding:32px 0 16px; 
  /* margin-top:128px;  */
  border-top:1px solid rgba(17,17,17,.08); 
  /* background:linear-gradient(180deg, rgba(236,236,232,.65), rgba(236,236,232,.92)); */
  
  /* 市松模様 */
  --size: 1.8rem;
  --color1: #ffffff;
  --color2: #f7f7f7;

  background-color: var(--color1);
  background-image:
    linear-gradient(45deg,
      var(--color2) 25%,
      transparent 25%,
      transparent 75%,
      var(--color2) 75%,
      var(--color2)
    ),
    linear-gradient(45deg,
      var(--color2) 25%,
      transparent 25%,
      transparent 75%,
      var(--color2) 75%,
      var(--color2)
    );
  background-position: 0 0, var(--size) var(--size);
  background-size: calc(var(--size) * 2) calc(var(--size) * 2);
  /* 市松模様終了 */
}
.site-footer__inner{
  display:flex; 
  flex-direction: row;
  justify-content:space-between; 
  gap:40px;
}

.site-footer__nav {
  width: min-content;
}
.site-footer__nav ul{
  display:grid; 
  grid-template-columns: repeat(7, auto);
  gap:1rem;
  white-space: nowrap;
}
.site-footer__nav a{
  color:var(--muted);
  position:relative;
}
.site-footer__nav a::after{
  content:""; 
  position:absolute; 
  left:0; 
  right:0; 
  bottom:-10px; 
  height:1px; 
  background:var(--text);
  transform:scaleX(0); 
  transform-origin:left center; 
  transition:transform .28s var(--transition);
}
.site-footer__nav a:hover{
  color:var(--text);
}
.site-footer__nav a:hover::after{
  transform:scaleX(1);
}

.site-footer__copy{
  margin-top:28px; 
  color:var(--muted); 
  font-size:.86rem;
  text-align: center;
}
.anchor-offset{
  scroll-margin-top:112px;
}

/* reveal */
.reveal-init{
  opacity:0;
  filter:blur(8px);
  transition:opacity .9s var(--transition), transform .9s var(--transition), filter .9s var(--transition);
  will-change:transform, opacity, filter;
}
.reveal-init[data-reveal="left"]{
  transform:translate3d(-40px,0,0);
}
.reveal-init[data-reveal="right"]{
  transform:translate3d(40px,0,0);
}
.reveal-init[data-reveal="up"]{
  transform:translate3d(0,32px,0);
}
.reveal-init.is-visible{
  opacity:1;
  filter:blur(0);
  transform:translate3d(0,0,0);
}

/* バブルアニメーション */
.value {
  position: relative;
}

#background-animation-container {
  background-color: var(--bg);
  height: 100%;
  left: 0;
  overflow: hidden;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: -1000;
}

.ani-bubble {
  background-color: rgb(222, 222, 222);
  border-radius: 75px;
  height: 150px;
  position: absolute;
  top: 100%;
  width: 150px;

  -webkit-animation: bubblemove 10s linear infinite;
  -moz-animation: bubblemove 10s linear infinite;
  animation: bubblemove 10s linear infinite;
}

@-webkit-keyframes bubblemove {
  from { top: 100%; }
  to   { top: -600px; }
}
@-moz-keyframes bubblemove {
  from { top: 100%; }
  to   { top: -600px; }
}
@keyframes bubblemove {
  from { top: 100%; }
  to   { top: -600px; } /* This must be far enough off screen to allow the largest object to wander off with enough delay before restarting at the bottom, to be caught by the interval timer */
}
/* バブルアニメーション終了 */

@media (max-width: 960px){
  .br_pc {
    display: none;
  }
  .br_res {
      display: block;
  }

  .l-container{
    width:min(var(--max), calc(100% - 32px));
  }
  .site-nav{
    display:none;
  }
  .site-nav.is-open{
    display:block; 
    position:absolute; 
    top:82px; 
    left:0; 
    right:0; 
    background:rgba(243,243,240,.98); 
    border-bottom:1px solid rgba(17,17,17,.08);
  }
  .site-nav.is-open .site-nav__list{
    flex-direction:column; 
    align-items:center; 
    padding:24px 24px 28px;
    font-weight: 600;
  }
  .nav-toggle{
    display:block;
  }
  .section,.page-section {
    padding:3rem 0;
  }
  .section-fv,.section-pagehead {
    padding:3rem 0;
    background-position: top right -3rem;
  }
  .fv-grid,.feature-grid,.two-col,
  .grid-3,.grid-2,.material-grid,
  .work-grid,.flow,.site-footer__inner, 
  .left-blank-grid {
    grid-template-columns:1fr; 
    display:grid;
  }
  .fv-copy h1,.pagehead-copy h1{
    max-width:none;
    font-size:clamp(2.8rem, 4.5vw, 5.8rem); 
    text-shadow:
      0 0 1rem white,
      0 0 0.5rem white,
      0 0 0.5rem white,
      0 0 0.2rem white;
  }
  .lead{
    font-size:1rem; 
    font-weight: 600;
    line-height: 2rem;
    color:#2c2c28; 
    max-width:42em;
    padding-left: 0rem;
    white-space: none;
    text-shadow:
      0 0 1rem white,
      0 0 0.5rem white,
      0 0 0.5rem white,
      0 0 0.2rem white;
  }
  .fv-visual,.feature-visual,.photo-placeholder,
  .diagram-placeholder{
    height:auto; 
  }
  .feature-visual img, .diagram-placeholder img {
    width: 100%;
    max-height:auto; 
    aspect-ratio: auto 2/3;
    object-fit: cover;
  }

  .choit-link{
    width: 100%;
    gap:1rem; 
  }

  .timeline__item{
    grid-template-columns:1fr; gap:8px;
  }
  .site-footer__nav ul{
    display:none; 
  }
  .site-footer__copy{
    margin-top:0rem; 
  }
  .site-footer__brand {
    margin-inline: auto;
    text-align: center;
  }

  .table th,.table td{
    padding:0.7rem 0.7rem; 
  }
  .table th{
    width:5.7rem; 
  }
}

@media (prefers-reduced-motion: reduce){
  html{
    scroll-behavior:auto;
  }
  *,*::before,*::after{
    transition:none !important; 
    animation:none !important;
  }
  .reveal-init{
    opacity:1 !important; 
    filter:none !important; 
    transform:none !important;
  }
}


/* =========================
   News / Column
========================= */
.archive-switch{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

.archive-switch a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 18px;
  border:1px solid rgba(17,17,17,.12);
  border-radius:999px;
  background:#fff;
  color:var(--muted);
}

.archive-switch a.is-current,
.archive-switch a:hover{
  background:var(--text);
  color:#fff;
}

.category-list{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

.category-list a{
  display:inline-block;
  padding:8px 14px;
  border-bottom:1px solid rgba(17,17,17,.15);
  color:var(--muted);
}

.category-list a:hover{
  color:var(--text);
  border-color:var(--text);
}

.post-list{
  gap:24px;
}

.post-card{
  height:100%;
}

.post-card a{
  display:block;
  height:100%;
}

.post-card__meta{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  font-size:.78rem;
  letter-spacing:.12em;
  color:var(--muted-2);
  margin-bottom:12px;
}

.post-card__title{
  font-size:1.3rem;
  line-height:1.45;
  margin-bottom:12px;
}

.post-card__excerpt{
  color:var(--muted);
}

.article-detail{
  max-width:920px;
  margin-inline:auto;
}

.article-header{
  margin-bottom:32px;
}

.article-meta{
  font-size:.82rem;
  letter-spacing:.14em;
  color:var(--muted-2);
  margin-bottom:10px;
}

.article-summary,
.article-related{
  margin-top:36px;
  padding:24px;
}

.article-pager{
  display:flex;
  justify-content:space-between;
  gap:16px;
  margin-top:36px;
}

.is-placeholder{
  opacity:.9;
}

#article-detail a{
  color: var(--muted);
}
#article-detail a:hover{
  color:var(--text);
}

/* =========================
   Article breadcrumb & typography
========================= */
.breadcrumb{
  margin-bottom:24px;
}

.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  font-size:.82rem;
  line-height:1.7;
  color:var(--muted-2);
}

.breadcrumb-list li{
  display:flex;
  align-items:center;
  gap:8px;
}

.breadcrumb-list li:not(:last-child)::after{
  content:"/";
  color:var(--line-strong);
}

.page-news-detail .article-title,
.page-column-detail .article-title{
  font-size:clamp(1.75rem, 2.75vw, 2.75rem);
  line-height:1.28;
  letter-spacing:-.01em;
  font-weight:700;
  color:#2c2c28;
  margin-bottom:2.5rem;
}

.page-news-detail .article-lead,
.page-column-detail .article-lead{
  font-size:1.05rem;
  line-height:1.9;
  color:var(--muted);
  margin-bottom:8px;
}

.page-news-detail .article-body,
.page-column-detail .article-body{
  display:grid;
  gap:18px;
  margin-top:36px;
}

.page-news-detail .article-body h2,
.page-column-detail .article-body h2,
.page-news-detail .article-summary h2,
.page-column-detail .article-summary h2,
.page-news-detail .article-summary h3,
.page-column-detail .article-summary h3,
.page-news-detail .article-related h2,
.page-column-detail .article-related h2,
.page-news-detail .article-related h3,
.page-column-detail .article-related h3{
  font-size:1.45rem;
  line-height:2rem;
  font-weight:700;
  padding-bottom:2px;
  border-bottom:1px solid var(--line);
}

.page-news-detail .article-body p,
.page-column-detail .article-body p{
  font-size:1rem;
  line-height:2;
  color:#2b2b27;
}

.article-related li {
  line-height: 1.25rem;
  margin-top: 0.75rem;
}

.article-related .list {
  gap: 0px;
}

.article-summary li {
  line-height: 1.25rem;
  margin-top: 0.75rem;
}

.article-summary .list {
  gap: 0px;
}

@media (max-width: 960px){
  .article-pager{
    flex-direction:column;
  }

  .page-news-detail .article-title,
  .page-column-detail .article-title{
    font-size:clamp(1.75rem, 7vw, 2.2rem);
    line-height:1.35;
  }

  .page-news-detail .article-body h2,
  .page-column-detail .article-body h2,
  .page-news-detail .article-summary h2,
  .page-column-detail .article-summary h2,
  .page-news-detail .article-summary h3,
  .page-column-detail .article-summary h3,
  .page-news-detail .article-related h2,
  .page-column-detail .article-related h2,
  .page-news-detail .article-related h3,
  .page-column-detail .article-related h3{
    font-size:1.28rem;
  }

  .page-news-detail .article-body p,
  .page-column-detail .article-body p,
  .page-news-detail .article-lead,
  .page-column-detail .article-lead{
    font-size:.98rem;
    line-height:1.9;
  }
}

/* =========================
   Article section spacing & inserted images
========================= */

/* h2の上余白をCSSで管理 */
.page-news-detail .article-body h2,
.page-column-detail .article-body h2{
  margin-top: 2rem;
}

.page-news-detail .article-body > h2:first-child,
.page-column-detail .article-body > h2:first-child{
  margin-top: 0;
}

/* 通常セクション */
.article-section{
  display: grid;
  gap: 1rem;
}

.article-section + .article-section{
  margin-top: 2.5rem;
}

.article-section__content h2{
  margin-top: 0;
  margin-bottom: 1rem;
}

.article-section__content p + p{
  margin-top: .9rem;
}

/* 記事の間に縦差し込みする画像 */
.article-image-block{
  margin: 2.5rem 0;
}

.article-image-block figure{
  margin: 0;
}

.article-image-block__img_3{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}
.article-image-block__img_2{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.article-image-block img{
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  object-fit: cover;
}

.article-image-block__img-text{
  content:attr(data-label); 
  position:relative; 
}
.article-image-block__img-text::after{
  content:attr(data-label); 
  position:absolute; 
  right:0.5rem; 
  bottom:0.25rem;
  font-size:0.75rem; 
  font-weight:700; 
  color:rgba(17,17,17,.5); 
  letter-spacing:-0.01rem;
}

.article-image-block__caption{
  margin-top: .7rem;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--muted);
}

/* 画像なしの通常記事本文の読みやすさも維持 */
.page-news-detail .article-body > p + p,
.page-column-detail .article-body > p + p{
  margin-top: .9rem;
}

@media (max-width: 960px){
  .article-image-block{
    margin: 2rem 0;
  }
}