@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&display=swap');

/* a-blog cms 本文専用 公式サイトの配色と書体に統一 */
#kc-duct-page{
  --duct-blue:#1d2088;
  --duct-green:#009d85;
  --duct-text:#333;
  --duct-muted:#666;
  --duct-pale:#f3f7f9;
  --duct-line:#dde5e8;
  position:relative;
  width:90vw;
  max-width:none;
  margin:0 calc(50% - 45vw);
  padding:0;
  container:kc-duct / inline-size;
  isolation:isolate;
  background:#fff;
  color:var(--duct-text);
  font-family:'Noto Sans JP',sans-serif;
  font-size:15px;
  font-weight:400;
  line-height:2;
  letter-spacing:.035em;
  text-align:left;
  word-break:normal;
  line-break:strict;
  overflow-wrap:break-word;
}
#kc-duct-page *,#kc-duct-page *::before,#kc-duct-page *::after{box-sizing:border-box}
#kc-duct-page :where(h1,h2,h3,p,figure,ul,ol){margin:0;padding:0;font-family:inherit;letter-spacing:inherit}
#kc-duct-page section{display:block;float:none;width:auto;max-width:none;margin:0;border:0;border-radius:0;box-shadow:none}
#kc-duct-page [id]{scroll-margin-top:120px}
#kc-duct-page h1,#kc-duct-page h2,#kc-duct-page h3{position:static;background:none;border:0;padding:0;box-shadow:none;font-weight:700;color:var(--duct-blue);line-height:1.65;text-wrap:pretty}
#kc-duct-page h1::before,#kc-duct-page h1::after,#kc-duct-page h2::before,#kc-duct-page h2::after,#kc-duct-page h3::before,#kc-duct-page h3::after{content:none}
#kc-duct-page h1{font-size:clamp(27px,4.1cqw,52px);letter-spacing:.045em}
#kc-duct-page h2{font-size:clamp(23px,3cqw,36px);margin-bottom:24px}
#kc-duct-page h3{font-size:19px;margin-bottom:16px}
#kc-duct-page p{font-size:15px;line-height:2.05;margin:0 0 20px}
#kc-duct-page p:last-child{margin-bottom:0}
#kc-duct-page .phrase{display:inline-block;max-width:100%;vertical-align:baseline}
#kc-duct-page .sentence{display:inline}
#kc-duct-page .sentence+.sentence::before{content:none}
#kc-duct-page a{color:var(--duct-blue);text-decoration:none;box-shadow:none}
#kc-duct-page a:focus-visible,#kc-duct-page summary:focus-visible{outline:3px solid var(--duct-green);outline-offset:5px}
#kc-duct-page img{display:block;max-width:100%;height:auto;border:0;border-radius:0;box-shadow:none}
#kc-duct-page .hero{padding:26px 0 0}
#kc-duct-page .hero-copy{padding:0 0 30px}
#kc-duct-page .eyebrow{margin-bottom:16px;font-size:12px;font-weight:700;color:var(--duct-green);line-height:1.8}
#kc-duct-page .hero h1 .phrase{display:block}
#kc-duct-page .hero-lead{font-size:16px;font-weight:700;line-height:1.9;margin:22px 0;color:var(--duct-text)}
#kc-duct-page .audience-pills{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 24px}
#kc-duct-page .audience-pills span{font-size:12px;color:var(--duct-blue);border:1px solid #c9d1e2;border-radius:3px;padding:4px 10px;background:#fff}
#kc-duct-page .hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
#kc-duct-page .button{display:inline-flex;min-height:52px;align-items:center;justify-content:space-between;gap:20px;width:100%;padding:14px 20px;border:1px solid var(--duct-green);border-radius:3px;background:var(--duct-green);color:#fff;font-size:14px;font-weight:700;line-height:1.8;text-align:center;transition:background .2s}
#kc-duct-page .button:hover{background:#007f6b;border-color:#007f6b;color:#fff}
#kc-duct-page .text-link{font-size:13px;border-bottom:1px solid var(--duct-blue);padding:0 0 4px}
#kc-duct-page .hero-note{font-size:12px;color:var(--duct-muted);margin-top:20px}
#kc-duct-page .brand-hero-photo{position:relative;margin:0;aspect-ratio:4/3;overflow:hidden}
#kc-duct-page .brand-hero-photo img{width:100%;height:100%;object-fit:cover}
#kc-duct-page .brand-hero-photo figcaption{position:absolute;bottom:0;left:0;right:0;background:rgba(29,32,136,.87);color:#fff;padding:13px 16px;font-size:12px;line-height:1.8}
#kc-duct-page .duct-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--duct-line);border:1px solid var(--duct-line);margin:28px 0 0}
#kc-duct-page .duct-links a{display:flex;align-items:center;justify-content:space-between;gap:8px;background:#fff;padding:14px 12px;font-size:12px;font-weight:700;min-height:52px}
#kc-duct-page .duct-links a:hover{background:var(--duct-pale)}
#kc-duct-page .duct-links span{color:var(--duct-green)}
#kc-duct-page .section{padding:54px 0}
#kc-duct-page .section-kicker{display:flex;align-items:center;gap:12px;justify-content:space-between;border-bottom:1px solid var(--duct-line);padding-bottom:14px;margin-bottom:30px;font-size:11px;line-height:1.8;color:var(--duct-muted)}
#kc-duct-page .section-kicker>span:first-child{font-weight:700;color:var(--duct-green);flex-shrink:0}
#kc-duct-page .section-kicker>span:last-child{text-align:right}
#kc-duct-page .intro-copy{max-width:880px;margin:auto}
#kc-duct-page .intro-copy h2{text-align:center;margin-bottom:28px}
#kc-duct-page .intro-copy>p:first-of-type{font-weight:700;color:var(--duct-blue)}
#kc-duct-page .airflow-section{border-top:1px solid var(--duct-line)}
#kc-duct-page .airflow-intro>div{margin-bottom:20px}
#kc-duct-page .airflow-overview{margin:22px 0 28px}
#kc-duct-page .airflow-cases{display:grid;gap:18px}
#kc-duct-page .airflow-card{display:flex;flex-direction:column;background:var(--duct-pale);border-top:3px solid var(--duct-green);padding:24px 20px}
#kc-duct-page .airflow-index{font-size:12px;font-weight:700;color:var(--duct-green);margin-bottom:14px}
#kc-duct-page .airflow-card h3{font-size:19px}
#kc-duct-page .airflow-card p{font-size:14px}
#kc-duct-page .fix-line{border-top:1px solid #d5dfe4;margin-top:auto;padding-top:18px}
#kc-duct-page .fix-line>b{font-size:13px;color:var(--duct-blue)}
#kc-duct-page .fix-line ul{list-style:disc;margin:10px 0 0;padding-left:1.35em;font-size:13px;line-height:2}
#kc-duct-page .fix-line li{padding:0;margin:0;background:none;border:0;list-style:disc}
#kc-duct-page .fix-line li::before{content:none}
#kc-duct-page .audience-section{border-top:1px solid var(--duct-line)}
#kc-duct-page .audience-overview{margin:20px 0 28px}
#kc-duct-page .audience-grid{display:grid;gap:16px}
#kc-duct-page .audience-grid article{border:1px solid var(--duct-line);padding:24px 20px}
#kc-duct-page .audience-grid article>span{font-size:11px;color:var(--duct-green);font-weight:700}
#kc-duct-page .audience-grid h3{margin-top:12px}
#kc-duct-page .audience-grid p{font-size:14px}
#kc-duct-page .solution{background:var(--duct-pale);padding:32px 20px}
#kc-duct-page .solution-top p{color:var(--duct-text)}
#kc-duct-page .approach-grid{display:grid;gap:16px;margin:26px 0}
#kc-duct-page .approach-card{background:#fff;padding:24px 20px;border:1px solid var(--duct-line)}
#kc-duct-page .card-top{display:flex;align-items:center;gap:12px;color:var(--duct-green);font-size:12px;font-weight:700;margin-bottom:18px}
#kc-duct-page .card-top>span:first-child{display:grid;place-items:center;background:var(--duct-blue);color:#fff;border-radius:50%;width:34px;height:34px;flex:none}
#kc-duct-page .approach-card p{font-size:14px}
#kc-duct-page .solution>p{font-size:12px;color:var(--duct-muted)}
#kc-duct-page .scenes-grid{display:grid;gap:20px}
#kc-duct-page .scene-card{margin:0}
#kc-duct-page .scene-image{position:relative;aspect-ratio:3/2;overflow:hidden}
#kc-duct-page .scene-image img{width:100%;height:100%;object-fit:cover}
#kc-duct-page .scene-image>span,#kc-duct-page .price-photo>span{position:absolute;top:12px;left:12px;background:rgba(29,32,136,.88);padding:4px 9px;color:#fff;font-size:10px}
#kc-duct-page .scene-card figcaption{display:flex;flex-direction:column;gap:5px;margin-top:14px;padding:0;background:none}
#kc-duct-page .scene-card figcaption>span{font-size:11px;color:var(--duct-green);font-weight:700}
#kc-duct-page .scene-card figcaption>b{font-size:16px;color:var(--duct-blue)}
#kc-duct-page .pricing-section{border-top:1px solid var(--duct-line)}
#kc-duct-page .price-columns{display:grid;gap:28px;margin-top:30px}
#kc-duct-page .price-column{display:grid;border:1px solid var(--duct-line);background:#fff}
#kc-duct-page .price-photo{position:relative;aspect-ratio:3/2;overflow:hidden}
#kc-duct-page .price-photo img{width:100%;height:100%;object-fit:cover}
#kc-duct-page .price-copy{padding:24px 20px}
#kc-duct-page .price-label{color:var(--duct-green);font-size:12px;font-weight:700;margin:0 0 10px}
#kc-duct-page .price-copy h3{font-size:21px}
#kc-duct-page .price-value{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px;margin:18px 0 22px;padding:14px 0;border-block:1px solid var(--duct-line);color:var(--duct-blue)}
#kc-duct-page .price-value small{font-size:12px;margin-right:4px}
#kc-duct-page .price-value strong{font-size:clamp(30px,4.5cqw,46px);font-family:inherit;font-weight:700;line-height:1.3;white-space:nowrap;letter-spacing:0}
#kc-duct-page .price-value strong span{font-size:.6em;margin:0 4px}
#kc-duct-page .price-value>b{font-size:16px}
#kc-duct-page .price-copy>p:last-child{font-size:14px}
#kc-duct-page .price-note{background:var(--duct-pale);padding:22px 20px;margin-top:24px}
#kc-duct-page .price-note>b{display:block;color:var(--duct-blue);font-size:14px;margin-bottom:12px}
#kc-duct-page .price-note p{font-size:12px;color:var(--duct-muted);margin-bottom:12px}
#kc-duct-page .flow-section{border-top:1px solid var(--duct-line)}
#kc-duct-page .flow-list{list-style:none;counter-reset:none;padding:0;margin:28px 0 20px;border-top:1px solid var(--duct-line)}
#kc-duct-page .flow-list>li{display:grid;grid-template-columns:60px minmax(0,1fr);gap:14px;border-bottom:1px solid var(--duct-line);margin:0;padding:22px 0;list-style:none;background:none;counter-increment:none}
#kc-duct-page .flow-list>li::before,#kc-duct-page .flow-list>li::marker{content:none}
#kc-duct-page .flow-step{display:flex;flex-direction:column;color:var(--duct-green);font-size:11px;line-height:1.8}
#kc-duct-page .flow-step b{font-size:23px;color:var(--duct-blue)}
#kc-duct-page .flow-list h3{font-size:17px;margin:0 0 8px}
#kc-duct-page .flow-list p{font-size:14px}
#kc-duct-page .flow-footnote p{font-size:12px;color:var(--duct-muted)}
#kc-duct-page .faq-section{border-top:1px solid var(--duct-line)}
#kc-duct-page .faq-list{border-top:1px solid var(--duct-line)}
#kc-duct-page .faq-list details{border-bottom:1px solid var(--duct-line);margin:0;padding:0}
#kc-duct-page .faq-list summary{list-style:none;display:grid;grid-template-columns:24px minmax(0,1fr) 20px;gap:10px;cursor:pointer;padding:20px 0;font-size:14px;font-weight:700;line-height:1.9;color:var(--duct-blue)}
#kc-duct-page .faq-list summary::-webkit-details-marker{display:none}
#kc-duct-page .faq-list summary>span{color:var(--duct-green);font-size:15px}
#kc-duct-page .faq-list summary i{position:relative;display:block;width:18px;height:24px}
#kc-duct-page .faq-list summary i::before,#kc-duct-page .faq-list summary i::after{content:'';position:absolute;width:14px;height:2px;background:var(--duct-green);top:11px;left:2px}
#kc-duct-page .faq-list summary i::after{transform:rotate(90deg)}
#kc-duct-page .faq-list details[open] summary i::after{transform:rotate(0)}
#kc-duct-page .faq-list details>p{font-size:14px;padding:0 30px 22px 34px;margin:0}
#kc-duct-page .contact-section{background:var(--duct-pale);border-top:4px solid var(--duct-green);padding:30px 20px;margin-bottom:50px}
#kc-duct-page .contact-content h2{font-size:clamp(24px,3.1cqw,38px)}
#kc-duct-page .contact-content h2>.phrase,#kc-duct-page .contact-invitation{display:block}
#kc-duct-page .contact-invitation .phrase{display:inline-block}
#kc-duct-page .contact-content p{font-size:14px}
#kc-duct-page .contact-card{display:flex;flex-direction:column;gap:16px;background:#fff;border:1px solid var(--duct-line);padding:24px 18px;margin-top:26px}
#kc-duct-page .contact-card>span{font-size:12px;font-weight:700;color:var(--duct-blue)}
#kc-duct-page .phone-link{display:flex;flex-direction:column;gap:2px;border-bottom:1px solid var(--duct-line);padding-bottom:16px}
#kc-duct-page .phone-link>span{font-size:12px;color:var(--duct-muted)}
#kc-duct-page .phone-link>b{font-size:24px;font-weight:700;letter-spacing:.04em;white-space:nowrap}
#kc-duct-page .contact-card small{font-size:12px;color:var(--duct-muted);line-height:1.9}
#kc-duct-page .hero-art,#kc-duct-page .hero-index,#kc-duct-page .ticker,#kc-duct-page .airflow-mark,#kc-duct-page .card-icon,#kc-duct-page .flow-symbol,#kc-duct-page .contact-shape{display:none}

/* 横幅が確保できたときだけ段組みにする */
@container kc-duct (min-width:640px){
  #kc-duct-page .hero{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding-top:36px;align-items:center}
  #kc-duct-page .hero-copy{padding:0}
  #kc-duct-page .brand-hero-photo{aspect-ratio:4/5}
  #kc-duct-page .button{width:auto;min-width:220px}
  #kc-duct-page .duct-links{grid-template-columns:repeat(4,minmax(0,1fr));margin-top:40px}
  #kc-duct-page .duct-links a{font-size:13px;padding:18px 16px}
  #kc-duct-page .section{padding:64px 0}
  #kc-duct-page .section-kicker{margin-bottom:36px;font-size:12px}
  #kc-duct-page .audience-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  #kc-duct-page .audience-grid article{padding:24px 18px}
  #kc-duct-page .scenes-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  #kc-duct-page .solution{padding:36px 28px}
  #kc-duct-page .price-column{grid-template-columns:1fr 1fr;align-items:stretch}
  #kc-duct-page .price-column:nth-child(2) .price-photo{order:2}
  #kc-duct-page .price-photo{aspect-ratio:auto;min-height:340px}
  #kc-duct-page .price-photo img{position:absolute;inset:0}
  #kc-duct-page .price-copy{padding:30px 28px}
  #kc-duct-page .flow-list>li{grid-template-columns:90px minmax(0,1fr);padding:26px 0}
  #kc-duct-page .flow-step{flex-direction:row;align-items:baseline;gap:12px}
  #kc-duct-page .contact-section{padding:36px 28px}
}
@container kc-duct (min-width:960px){
  #kc-duct-page .hero{gap:52px;padding-top:48px}
  #kc-duct-page .brand-hero-photo{aspect-ratio:6/5}
  #kc-duct-page .hero-lead{font-size:19px}
  #kc-duct-page .section{padding:80px 0}
  #kc-duct-page .airflow-intro,#kc-duct-page .audience-heading,#kc-duct-page .solution-top,#kc-duct-page .pricing-heading{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
  #kc-duct-page .airflow-intro h2,#kc-duct-page .audience-heading h2,#kc-duct-page .solution-top h2,#kc-duct-page .pricing-heading h2{margin:0}
  #kc-duct-page .airflow-overview{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin:28px 0 36px}
  #kc-duct-page .airflow-overview p{margin:0}
  #kc-duct-page .airflow-cases,#kc-duct-page .approach-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  #kc-duct-page .airflow-card,#kc-duct-page .approach-card{padding:28px 24px}
  #kc-duct-page .audience-overview{max-width:850px;margin:24px 0 36px}
  #kc-duct-page .solution{padding:48px 36px}
  #kc-duct-page .solution .section-kicker{grid-column:1/-1}
  #kc-duct-page .price-copy{padding:40px}
  #kc-duct-page .price-copy h3{font-size:25px}
  #kc-duct-page .price-photo{min-height:380px}
  #kc-duct-page .faq-layout{display:grid;grid-template-columns:.65fr 1.35fr;gap:60px}
  #kc-duct-page .contact-section{padding:48px 36px;margin-bottom:70px}
  #kc-duct-page .contact-content{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
  #kc-duct-page .contact-card{margin-top:0;padding:30px}
  #kc-duct-page .contact-card .button{width:100%;min-width:0}
}
@media(prefers-reduced-motion:reduce){#kc-duct-page *,#kc-duct-page *::before,#kc-duct-page *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}


/* 実際の施工写真 10枚をスワイプ・矢印・番号で切り替え */
#kc-duct-page .cases-section{border-top:1px solid var(--duct-line)}
#kc-duct-page .case-slider{margin-top:28px;min-width:0}
#kc-duct-page .case-track{position:relative;display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:#b8c7cf var(--duct-pale);padding:0 0 16px;margin:0;list-style:none;direction:ltr}
#kc-duct-page .case-track:focus-visible{outline:3px solid var(--duct-green);outline-offset:5px}
#kc-duct-page .case-slide{flex:0 0 88%;min-width:0;margin:0;scroll-snap-align:start;scroll-snap-stop:always;list-style:none}
#kc-duct-page .case-photo{display:block;aspect-ratio:3/4;background:var(--duct-pale);overflow:hidden;border:1px solid var(--duct-line)}
#kc-duct-page .case-photo img{width:100%;height:100%;object-fit:contain}
#kc-duct-page .case-slide figcaption{display:flex;align-items:baseline;gap:10px;padding:14px 0 0;margin:0;background:none;line-height:1.8;color:var(--duct-blue);font-size:14px;font-weight:700}
#kc-duct-page .case-slide figcaption>span{font-size:12px;color:var(--duct-green);flex:none}
#kc-duct-page .case-controls{display:flex;align-items:center;justify-content:center;gap:20px;margin-top:14px}
#kc-duct-page .case-arrow{display:grid;place-items:center;width:48px;height:48px;padding:0;border:1px solid var(--duct-blue);border-radius:50%;background:#fff;color:var(--duct-blue);font:700 21px/1 'Noto Sans JP',sans-serif;cursor:pointer;transition:background .2s,color .2s}
#kc-duct-page .case-arrow:hover:not(:disabled){background:var(--duct-blue);color:#fff}
#kc-duct-page .case-arrow:disabled{border-color:var(--duct-line);color:#a8b1b5;cursor:default}
#kc-duct-page .case-counter{font-size:14px;color:var(--duct-blue);font-weight:700;min-width:100px;text-align:center;font-variant-numeric:tabular-nums}
#kc-duct-page .case-dots{display:flex;gap:2px;justify-content:safe center;overflow:auto;padding:12px 0 2px}
#kc-duct-page .case-dot{flex:none;min-width:28px;min-height:36px;border:0;border-bottom:2px solid transparent;border-radius:0;padding:5px 4px;background:none;color:#707b83;font:400 12px/1.7 'Noto Sans JP',sans-serif;cursor:pointer}
#kc-duct-page .case-dot[aria-current=true]{border-bottom-color:var(--duct-green);color:var(--duct-blue);font-weight:700}
#kc-duct-page .case-dot:hover{background:var(--duct-pale);color:var(--duct-blue)}
#kc-duct-page .case-note{font-size:12px;color:var(--duct-muted);margin-top:14px;text-align:center}
#kc-duct-page .duct-links a:last-child{grid-column:1/-1}
@container kc-duct (min-width:640px){#kc-duct-page .case-slide{flex-basis:calc((100% - 20px)/2)}#kc-duct-page .case-track{gap:20px}#kc-duct-page .duct-links{grid-template-columns:repeat(5,minmax(0,1fr))}#kc-duct-page .duct-links a:last-child{grid-column:auto}#kc-duct-page .case-dots{gap:8px}#kc-duct-page .case-dot{min-width:34px}}
@container kc-duct (min-width:960px){#kc-duct-page .case-slide{flex-basis:calc((100% - 48px)/3)}#kc-duct-page .case-track{gap:24px}#kc-duct-page .case-slide figcaption{font-size:15px}}