:root{
  --stj-bg:#f7f3ec;
  --stj-bg-alt:#ece4d6;
  --stj-ink:#1b1a17;
  --stj-ink-soft:#3a362f;
  --stj-line:#b8aa90;
  --stj-amber:#c46a1a;
  --stj-amber-deep:#8f4a0d;
  --stj-card:#fffaf1;
  --stj-shadow:0 10px 28px rgba(27,26,23,0.09);
  --stj-serif:'Shippori Mincho B1', 'Noto Serif JP', serif;
  --stj-sans:'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --stj-radius:0px;
  --stj-gap:28px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--stj-sans);
  background:var(--stj-bg);
  color:var(--stj-ink);
  line-height:1.78;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{font-family:var(--stj-serif);color:var(--stj-ink);font-weight:600;letter-spacing:0.02em;line-height:1.28}
h1{font-size:clamp(2.1rem,4.5vw,3.6rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:18px}
h3{font-size:1.32rem;margin-bottom:12px}
h4{font-size:1.1rem;margin-bottom:10px}
p{margin-bottom:14px;color:var(--stj-ink-soft)}
a{color:var(--stj-amber-deep);text-decoration:none;transition:color 0.2s ease}
a:hover{color:var(--stj-amber)}
img{max-width:100%;display:block}
.material-symbols-outlined{font-variation-settings:'FILL' 0,'wght' 400,'GRAD' 0,'opsz' 24;vertical-align:middle}
.stj-container{max-width:1240px;margin:0 auto;padding:0 32px}
.stj-container-narrow{max-width:880px;margin:0 auto;padding:0 32px}
.stj-header{
  background:var(--stj-bg);
  border-bottom:1px solid var(--stj-line);
  position:sticky;top:0;z-index:50;
}
.stj-header-inner{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:36px;
  padding:18px 0;
}
.stj-mobile-toggle,
.stj-mobile-nav-shell{display:none}
.stj-logo{display:flex;align-items:center;gap:10px;font-family:var(--stj-serif);font-size:1.25rem;color:var(--stj-ink);font-weight:600}
.stj-logo span.material-symbols-outlined{color:var(--stj-amber);font-size:28px}
.stj-logo small{display:block;font-family:var(--stj-sans);font-size:11px;color:var(--stj-ink-soft);letter-spacing:0.08em;font-weight:400}
.stj-nav{display:flex;justify-content:center;gap:28px;flex-wrap:wrap}
.stj-nav>li{list-style:none;position:relative}
.stj-nav>li>a{
  font-size:14.5px;color:var(--stj-ink);padding:8px 0;
  display:inline-flex;align-items:center;gap:4px;
  border-bottom:1px solid transparent;transition:border 0.2s;
}
.stj-nav>li>a:hover{border-bottom-color:var(--stj-amber)}
.stj-submenu{
  position:absolute;top:100%;left:0;min-width:320px;
  background:var(--stj-card);border:1px solid var(--stj-line);
  box-shadow:var(--stj-shadow);padding:16px 0;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:all 0.2s;
}
.stj-nav>li:hover .stj-submenu,.stj-nav>li:focus-within .stj-submenu{opacity:1;visibility:visible;transform:translateY(0)}
.stj-submenu li{list-style:none}
.stj-submenu a{display:block;padding:10px 20px;font-size:13.5px;color:var(--stj-ink-soft)}
.stj-submenu a:hover{background:var(--stj-bg-alt);color:var(--stj-amber-deep)}
.stj-cta-btn{
  background:var(--stj-ink);color:var(--stj-bg);
  padding:12px 22px;font-size:13.5px;letter-spacing:0.05em;
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--stj-ink);cursor:pointer;
  transition:all 0.2s;font-family:var(--stj-sans);
}
.stj-cta-btn:hover{background:var(--stj-amber);border-color:var(--stj-amber);color:#fff}
.stj-cta-secondary{
  background:transparent;color:var(--stj-ink);
  border:1px solid var(--stj-ink);
  padding:12px 22px;font-size:13.5px;letter-spacing:0.05em;
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  transition:all 0.2s;font-family:var(--stj-sans);
}
.stj-cta-secondary:hover{background:var(--stj-ink);color:var(--stj-bg)}
.stj-hero{
  display:grid;
  grid-template-columns:60% 40%;
  min-height:620px;
  border-bottom:1px solid var(--stj-line);
}
.stj-hero-img{
  background-image:url('../media/magazine-classroom-hero.jpg');
  background-size:cover;background-position:center;
  position:relative;
}
.stj-hero-img::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(27,26,23,0.15) 0%,rgba(27,26,23,0.45) 100%);
}
.stj-hero-text{
  padding:80px 56px;
  display:flex;flex-direction:column;justify-content:center;
  background:var(--stj-card);
}
.stj-hero-eyebrow{
  font-size:12px;letter-spacing:0.22em;text-transform:uppercase;
  color:var(--stj-amber-deep);margin-bottom:22px;font-weight:500;
}
.stj-hero-title{margin-bottom:20px}
.stj-hero-sub{font-size:1.05rem;color:var(--stj-ink-soft);margin-bottom:36px;max-width:460px}
.stj-hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.stj-section{padding:96px 0;border-bottom:1px solid var(--stj-line)}
.stj-section-alt{background:var(--stj-bg-alt)}
.stj-section-title{margin-bottom:14px}
.stj-section-eyebrow{
  font-size:12px;letter-spacing:0.22em;text-transform:uppercase;
  color:var(--stj-amber-deep);margin-bottom:16px;display:block;
}
.stj-mission-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.stj-mission-img{aspect-ratio:4/3;background:var(--stj-bg-alt);overflow:hidden}
.stj-mission-img img{width:100%;height:100%;object-fit:cover}
.stj-mission-text h2{margin-bottom:20px}
.stj-mission-text p{font-size:1.02rem;margin-bottom:16px}
.stj-article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:48px}
.stj-article-card{background:var(--stj-card);position:relative;overflow:hidden;transition:transform 0.3s ease}
.stj-article-card:hover{transform:translateY(-4px)}
.stj-article-card-media{position:relative;aspect-ratio:4/3;overflow:hidden}
.stj-article-card-media img{width:100%;height:100%;object-fit:cover;transition:transform 0.6s}
.stj-article-card:hover .stj-article-card-media img{transform:scale(1.04)}
.stj-article-card-media::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(27,26,23,0) 40%,rgba(27,26,23,0.75) 100%);
}
.stj-article-card-title{
  position:absolute;bottom:22px;left:22px;right:22px;
  color:#fff;font-family:var(--stj-serif);font-size:1.18rem;
  line-height:1.4;z-index:2;
}
.stj-article-card-body{padding:22px 24px 26px}
.stj-article-card-meta{
  font-size:12px;color:var(--stj-amber-deep);
  letter-spacing:0.15em;text-transform:uppercase;margin-bottom:10px;
}
.stj-article-card-excerpt{font-size:14.5px;color:var(--stj-ink-soft);margin-bottom:16px}
.stj-article-card-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--stj-ink);
  border-bottom:1px solid var(--stj-ink);padding-bottom:2px;
}
.stj-article-card-link:hover{color:var(--stj-amber);border-color:var(--stj-amber)}
.stj-about-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:72px;align-items:center}
.stj-about-img{aspect-ratio:1/1;background:var(--stj-bg-alt);overflow:hidden}
.stj-about-img img{width:100%;height:100%;object-fit:cover}
.stj-glossary-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px}
.stj-glossary-item{
  background:var(--stj-card);padding:24px 26px;
  border-left:3px solid var(--stj-amber);
}
.stj-glossary-term{font-family:var(--stj-serif);font-size:1.05rem;color:var(--stj-ink);margin-bottom:8px;display:flex;align-items:center;gap:8px}
.stj-glossary-term .material-symbols-outlined{color:var(--stj-amber);font-size:20px}
.stj-glossary-def{font-size:14px;color:var(--stj-ink-soft)}
.stj-glossary-more{margin-top:36px;text-align:center}
.stj-advantages-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:48px}
.stj-advantage{
  background:var(--stj-card);padding:36px 30px;
  border-top:3px solid var(--stj-amber);
}
.stj-advantage-icon{
  width:52px;height:52px;display:flex;align-items:center;justify-content:center;
  background:var(--stj-bg-alt);margin-bottom:20px;
}
.stj-advantage-icon .material-symbols-outlined{color:var(--stj-amber-deep);font-size:30px}
.stj-advantage h3{margin-bottom:12px;font-size:1.15rem}
.stj-advantage p{font-size:14.5px;margin-bottom:0}
.stj-closing{
  background:var(--stj-ink);color:var(--stj-bg);
  text-align:center;padding:96px 0;
}
.stj-closing h2{color:#fff;margin-bottom:18px}
.stj-closing p{color:rgba(247,243,236,0.85);font-size:1.05rem;max-width:640px;margin:0 auto 36px}
.stj-closing .stj-cta-btn{background:var(--stj-amber);border-color:var(--stj-amber)}
.stj-closing .stj-cta-btn:hover{background:#fff;color:var(--stj-ink);border-color:#fff}
.stj-closing .stj-cta-secondary{background:transparent;border-color:rgba(247,243,236,0.5);color:var(--stj-bg)}
.stj-closing .stj-cta-secondary:hover{background:var(--stj-bg);color:var(--stj-ink)}
.stj-footer{
  background:var(--stj-bg-alt);
  padding:72px 0 28px;
  border-top:1px solid var(--stj-line);
}
.stj-footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;margin-bottom:56px}
.stj-footer h4{font-family:var(--stj-serif);font-size:1rem;margin-bottom:22px;letter-spacing:0.06em}
.stj-footer-contact li{
  list-style:none;display:flex;gap:12px;margin-bottom:14px;
  font-size:14px;color:var(--stj-ink-soft);
}
.stj-footer-contact .material-symbols-outlined{color:var(--stj-amber-deep);font-size:20px;flex-shrink:0}
.stj-footer-policies li{list-style:none;margin-bottom:10px}
.stj-footer-policies a{font-size:14px;color:var(--stj-ink-soft)}
.stj-footer-policies a:hover{color:var(--stj-amber-deep)}
.stj-footer-bottom{
  border-top:1px solid var(--stj-line);padding-top:24px;
  text-align:center;font-size:12.5px;color:var(--stj-ink-soft);
  letter-spacing:0.05em;
}
.stj-cookie-bar{
  display:none;background:var(--stj-ink);color:var(--stj-bg);
  padding:28px 32px;
}
.stj-cookie-bar.is-active{display:block}
.stj-cookie-inner{
  max-width:1240px;margin:0 auto;
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
}
.stj-cookie-text{font-size:14px;line-height:1.7}
.stj-cookie-text a{color:var(--stj-amber);border-bottom:1px solid var(--stj-amber)}
.stj-cookie-actions{display:flex;gap:12px;flex-wrap:wrap}
.stj-cookie-btn{
  padding:10px 22px;font-size:13px;cursor:pointer;
  border:1px solid var(--stj-bg);background:transparent;color:var(--stj-bg);
  transition:all 0.2s;font-family:var(--stj-sans);
}
.stj-cookie-btn.is-primary{background:var(--stj-amber);border-color:var(--stj-amber)}
.stj-cookie-btn:hover{background:var(--stj-bg);color:var(--stj-ink);border-color:var(--stj-bg)}
.stj-cookie-btn.is-primary:hover{background:#fff;color:var(--stj-ink)}
.stj-page-hero{
  padding:112px 0 72px;background:var(--stj-card);
  border-bottom:1px solid var(--stj-line);
}
.stj-page-hero-eyebrow{
  font-size:12px;letter-spacing:0.22em;text-transform:uppercase;
  color:var(--stj-amber-deep);margin-bottom:20px;display:block;
}
.stj-page-hero h1{max-width:820px;margin-bottom:24px}
.stj-page-hero-lead{max-width:760px;font-size:1.08rem;color:var(--stj-ink-soft)}
.stj-contact-grid{
  display:grid;grid-template-columns:1fr 1.3fr;gap:64px;
}
.stj-contact-info li{
  list-style:none;display:flex;gap:16px;
  padding:20px 0;border-bottom:1px solid var(--stj-line);
}
.stj-contact-info li:last-child{border-bottom:none}
.stj-contact-info .material-symbols-outlined{color:var(--stj-amber-deep);font-size:28px;flex-shrink:0}
.stj-contact-info strong{display:block;font-family:var(--stj-serif);font-size:1rem;margin-bottom:4px;color:var(--stj-ink)}
.stj-contact-info span{font-size:14.5px;color:var(--stj-ink-soft);line-height:1.7}
.stj-form-card{
  background:var(--stj-card);padding:48px 44px;
  border:1px solid var(--stj-line);
}
.stj-form-card h2{font-family:var(--stj-serif);margin-bottom:12px}
.stj-form-card p{margin-bottom:28px}
.stj-form-field{margin-bottom:22px}
.stj-form-field label{
  display:block;font-size:13px;letter-spacing:0.08em;
  margin-bottom:8px;color:var(--stj-ink);font-weight:500;
}
.stj-form-field input,
.stj-form-field textarea{
  width:100%;padding:13px 14px;font-size:14.5px;
  border:1px solid var(--stj-line);background:var(--stj-bg);
  font-family:var(--stj-sans);color:var(--stj-ink);
  transition:border 0.2s;
}
.stj-form-field input:focus,
.stj-form-field textarea:focus{outline:none;border-color:var(--stj-amber)}
.stj-form-field textarea{min-height:140px;resize:vertical}
.stj-form-consent{display:flex;gap:10px;margin-bottom:24px;font-size:13px;color:var(--stj-ink-soft)}
.stj-form-consent input{margin-top:3px}
.stj-form-consent a{color:var(--stj-amber-deep);border-bottom:1px solid var(--stj-amber-deep)}
.stj-map-wrap{margin-top:56px;border:1px solid var(--stj-line)}
.stj-map-wrap iframe{display:block;width:100%;height:320px;border:0}
.stj-map-link{
  margin-top:14px;font-size:13.5px;
  display:inline-flex;align-items:center;gap:6px;
}
.stj-legal{padding:96px 0}
.stj-legal-content{max-width:820px}
.stj-legal-content h2{margin-top:48px;margin-bottom:18px;font-size:1.6rem}
.stj-legal-content h2:first-child{margin-top:0}
.stj-legal-content h3{margin-top:28px;font-size:1.2rem}
.stj-legal-content p{margin-bottom:14px}
.stj-legal-content ul{margin:0 0 18px 22px}
.stj-legal-content li{margin-bottom:8px;color:var(--stj-ink-soft)}
.stj-legal-updated{
  background:var(--stj-bg-alt);padding:18px 22px;
  border-left:3px solid var(--stj-amber);
  font-size:14px;color:var(--stj-ink-soft);margin-bottom:36px;
}
.stj-list-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:48px;
  margin-top:16px;
}
.stj-list-card{
  background:var(--stj-card);
  display:grid;grid-template-columns:40% 60%;
  border:1px solid var(--stj-line);
}
.stj-list-card-media{aspect-ratio:1/1;overflow:hidden}
.stj-list-card-media img{width:100%;height:100%;object-fit:cover}
.stj-list-card-body{padding:30px 30px 28px;display:flex;flex-direction:column;justify-content:center}
.stj-list-card-body .meta{font-size:11.5px;letter-spacing:0.18em;color:var(--stj-amber-deep);text-transform:uppercase;margin-bottom:10px}
.stj-list-card-body h3{font-size:1.15rem;margin-bottom:10px}
.stj-list-card-body p{font-size:13.5px;margin-bottom:16px}
.stj-list-card-body a{font-size:13px;display:inline-flex;align-items:center;gap:4px;color:var(--stj-ink);border-bottom:1px solid var(--stj-ink);padding-bottom:2px;width:fit-content}
.stj-list-card-body a:hover{color:var(--stj-amber);border-color:var(--stj-amber)}
.stj-article-page{padding:80px 0 96px}
.stj-article-hero{max-width:820px;margin:0 auto 48px}
.stj-article-eyebrow{font-size:12px;letter-spacing:0.22em;color:var(--stj-amber-deep);text-transform:uppercase;margin-bottom:20px;display:block}
.stj-article-hero h1{margin-bottom:20px}
.stj-article-byline{font-size:13px;color:var(--stj-ink-soft);letter-spacing:0.06em}
.stj-article-cover{max-width:1080px;margin:0 auto 56px;aspect-ratio:16/7;overflow:hidden;border:1px solid var(--stj-line)}
.stj-article-cover img{width:100%;height:100%;object-fit:cover}
.stj-article-body{max-width:760px;margin:0 auto}
.stj-article-body p{font-size:1.02rem;line-height:1.92;margin-bottom:18px;color:var(--stj-ink-soft)}
.stj-article-body h2{margin-top:52px;margin-bottom:18px;font-size:1.7rem}
.stj-article-body h3{margin-top:36px;font-size:1.3rem}
.stj-article-qna{
  background:var(--stj-bg-alt);padding:32px 34px;
  border-left:3px solid var(--stj-amber);margin:28px 0;
}
.stj-article-qna strong{font-family:var(--stj-serif);color:var(--stj-amber-deep);display:block;margin-bottom:8px;font-size:1rem;letter-spacing:0.06em}
.stj-article-qna p{margin-bottom:0;color:var(--stj-ink)}
.stj-article-prevnext{
  max-width:820px;margin:72px auto 0;
  display:grid;grid-template-columns:1fr 1fr;gap:24px;
  border-top:1px solid var(--stj-line);padding-top:32px;
}
.stj-article-prevnext a{
  display:block;padding:18px 20px;background:var(--stj-card);
  border:1px solid var(--stj-line);transition:all 0.2s;
}
.stj-article-prevnext a:hover{border-color:var(--stj-amber);transform:translateY(-2px)}
.stj-article-prevnext span.meta{display:block;font-size:11px;letter-spacing:0.18em;color:var(--stj-amber-deep);text-transform:uppercase;margin-bottom:6px}
.stj-article-prevnext span.title{font-family:var(--stj-serif);font-size:1rem;color:var(--stj-ink)}
.stj-article-prevnext .next{text-align:right}
.stj-modal{
  position:fixed;inset:0;background:rgba(27,26,23,0.7);
  display:none;align-items:center;justify-content:center;z-index:100;
  padding:24px;
}
.stj-modal.is-active{display:flex}
.stj-modal-card{
  background:var(--stj-card);padding:40px 36px;max-width:440px;
  text-align:center;border:1px solid var(--stj-line);
}
.stj-modal-card .material-symbols-outlined{color:var(--stj-amber);font-size:52px;margin-bottom:16px}
.stj-modal-card h3{margin-bottom:10px}
.stj-modal-card p{font-size:14px;margin-bottom:22px}
.stj-modal-close{
  background:var(--stj-ink);color:var(--stj-bg);
  padding:10px 28px;font-size:13px;border:none;cursor:pointer;
  letter-spacing:0.06em;font-family:var(--stj-sans);
}
.stj-reveal{opacity:0;transform:translateY(24px);transition:opacity 0.8s ease,transform 0.8s ease}
.stj-reveal.is-visible{opacity:1;transform:translateY(0)}
@media (max-width:960px){
  .stj-container,.stj-container-narrow{padding:0 24px}
  .stj-header-inner{
    grid-template-columns:minmax(0,1fr) auto;
    gap:16px;
    padding:14px 0;
  }
  .stj-logo{
    min-width:0;
    width:100%;
    font-size:1.05rem;
    line-height:1.2;
  }
  .stj-logo>span:last-child{
    min-width:0;
    display:block;
    overflow-wrap:anywhere;
  }
  .stj-logo small{margin-top:4px;font-size:10px;letter-spacing:0.05em}
  .stj-header-inner>.stj-cta-btn{display:none}
  .stj-mobile-toggle{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    position:fixed;top:14px;right:24px;z-index:96;
    padding:10px 12px;border:1px solid var(--stj-line);
    background:var(--stj-card);color:var(--stj-ink);cursor:pointer;
    font-family:var(--stj-sans);font-size:12px;letter-spacing:0.08em;
    text-transform:uppercase;
    box-shadow:0 8px 20px rgba(27,26,23,0.08);
  }
  .stj-mobile-toggle .material-symbols-outlined{font-size:20px}
  .stj-mobile-nav-shell{
    display:block;position:fixed;inset:0;z-index:95;
    opacity:0;pointer-events:none;transition:opacity 0.2s ease;
  }
  .stj-mobile-nav-shell.is-open{opacity:1;pointer-events:auto}
  .stj-mobile-nav-backdrop{
    position:absolute;inset:0;background:rgba(27,26,23,0.45);
  }
  .stj-mobile-nav{
    position:absolute;top:0;right:0;height:100%;width:min(92vw,420px);
    background:var(--stj-card);border-left:1px solid var(--stj-line);
    box-shadow:var(--stj-shadow);padding:88px 24px 32px;
    overflow-y:auto;transform:translateX(100%);transition:transform 0.25s ease;
  }
  .stj-mobile-nav-shell.is-open .stj-mobile-nav{transform:translateX(0)}
  .stj-mobile-nav-close{
    position:absolute;top:18px;right:18px;
    width:44px;height:44px;border:1px solid var(--stj-line);
    background:var(--stj-bg);color:var(--stj-ink);
    display:inline-flex;align-items:center;justify-content:center;
    cursor:pointer;
  }
  .stj-mobile-nav-list,
  .stj-mobile-nav-list li,
  .stj-mobile-nav-list .stj-submenu{list-style:none}
  .stj-mobile-nav-list{display:flex;flex-direction:column;gap:8px}
  .stj-mobile-nav-list>li{padding-bottom:10px;border-bottom:1px solid rgba(184,170,144,0.45)}
  .stj-mobile-nav-list>li:last-child{padding-bottom:0;border-bottom:none}
  .stj-mobile-nav-list>li>a{
    display:flex;align-items:center;justify-content:space-between;gap:8px;
    padding:8px 0;font-size:15px;color:var(--stj-ink);border-bottom:none;
  }
  .stj-mobile-nav-list .stj-submenu{
    position:static;min-width:0;background:transparent;border:none;box-shadow:none;
    padding:4px 0 0;opacity:1;visibility:visible;transform:none;
  }
  .stj-mobile-nav-list .stj-submenu a{
    padding:8px 0 8px 14px;font-size:13.5px;color:var(--stj-ink-soft);
    border-left:1px solid rgba(184,170,144,0.8);
  }
  .stj-mobile-nav-cta{
    margin-top:22px;width:100%;justify-content:center;
  }
  body.stj-menu-open{overflow:hidden}
  .stj-hero{grid-template-columns:1fr;min-height:auto}
  .stj-hero-img{min-height:320px}
  .stj-hero-text{padding:56px 32px}
  .stj-mission-grid,.stj-about-grid,.stj-contact-grid,.stj-footer-grid{grid-template-columns:1fr;gap:48px}
  .stj-article-grid,.stj-advantages-grid{grid-template-columns:1fr;gap:28px}
  .stj-list-grid{grid-template-columns:1fr;gap:28px}
  .stj-list-card{grid-template-columns:1fr}
  .stj-glossary-list{grid-template-columns:1fr}
  .stj-nav{display:none}
  .stj-cookie-inner{grid-template-columns:1fr}
  .stj-section{padding:72px 0}
  .stj-article-prevnext{grid-template-columns:1fr}
}
@media (max-width:640px){
  .stj-container,.stj-container-narrow{padding:0 16px}
  .stj-header-inner{gap:12px}
  .stj-logo{font-size:0.95rem}
  .stj-logo small{display:none}
  .stj-mobile-toggle{
    top:12px;
    right:16px;
    width:44px;
    height:44px;
    padding:0;
    gap:0;
  }
  .stj-mobile-toggle span:last-child{display:none}
  .stj-hero-img{min-height:240px}
  .stj-hero-text{padding:40px 16px}
  .stj-hero-sub,
  .stj-page-hero-lead,
  .stj-closing p,
  .stj-article-body p{font-size:0.97rem}
  .stj-hero-actions,
  .stj-cookie-actions{gap:10px}
  .stj-hero-actions .stj-cta-btn,
  .stj-hero-actions .stj-cta-secondary,
  .stj-closing .stj-cta-btn,
  .stj-closing .stj-cta-secondary,
  .stj-cookie-actions .stj-cookie-btn{
    width:100%;
    justify-content:center;
  }
  .stj-section{padding:56px 0}
  .stj-page-hero{padding:84px 0 52px}
  .stj-legal{padding:64px 0}
  .stj-form-card,
  .stj-article-qna,
  .stj-advantage,
  .stj-glossary-item,
  .stj-list-card-body,
  .stj-modal-card{padding:28px 22px}
  .stj-contact-info li{gap:12px}
  .stj-form-consent{align-items:flex-start}
  .stj-article-cover{
    margin-bottom:40px;
    aspect-ratio:4/3;
  }
  .stj-article-body h2{margin-top:40px;font-size:1.45rem}
  .stj-article-body h3{margin-top:28px;font-size:1.18rem}
  .stj-article-prevnext{margin-top:56px}
  .stj-article-prevnext .next{text-align:left}
  .stj-closing{padding:72px 0}
  .stj-footer{padding:56px 0 24px}
  .stj-footer-grid{gap:40px;margin-bottom:40px}
  .stj-cookie-bar{padding:22px 16px}
}