@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;500;700&family=Noto+Sans+JP:wght@400;500;600&display=swap');

:root{
  --bg:#F4F1EA;
  --surface:#FFFBF4;
  --ink:#1A2233;
  --muted:#4A515C;
  --line:#D4CFC2;
  --brand:#A8432B;
  --brand-deep:#7D3020;
  --accent:#3A5D80;
  --rule:#1A2233;
  --radius:4px;
  --radius-sm:2px;
  --shadow:none;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans JP",system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--bg);line-height:1.85;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-deep);text-decoration:underline}
h1,h2,h3,h4,h5{font-family:"Noto Serif JP",serif;color:var(--ink);font-weight:500;line-height:1.4;margin:0 0 .6em;letter-spacing:.01em}
h1{font-size:clamp(2rem,4.3vw,3.1rem);font-weight:700;letter-spacing:.005em}
h2{font-size:clamp(1.5rem,2.7vw,2rem);font-weight:500}
h3{font-size:1.2rem;font-weight:500}
h4{font-size:1.05rem;font-weight:500}
p{margin:0 0 1em;color:var(--ink)}
.container{max-width:1180px;margin:0 auto;padding:0 28px}
.container-narrow{max-width:780px;margin:0 auto;padding:0 28px}

.topnav{background:var(--surface);border-bottom:2px solid var(--rule);position:sticky;top:0;z-index:50}
.topnav-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:18px 28px;max-width:1280px;margin:0 auto}
.brand{display:flex;flex-direction:column;color:var(--ink);font-family:"Noto Serif JP",serif}
.brand-name{font-size:1.15rem;font-weight:700;letter-spacing:.01em}
.brand-sub{font-size:.78rem;color:var(--muted);font-weight:400;margin-top:3px;font-family:"Noto Sans JP",sans-serif}
.nav-list{display:flex;gap:24px;list-style:none;margin:0;padding:0;align-items:center}
.nav-list a{color:var(--ink);font-size:.92rem;font-weight:500;padding:6px 0;position:relative;display:inline-flex;align-items:center;gap:4px}
.nav-list a:hover{color:var(--brand);text-decoration:none}
.nav-item.open .nav-dropdown{display:block}
.nav-dropdown{position:absolute;top:100%;left:0;background:var(--surface);border:1px solid var(--line);border-top:2px solid var(--brand);padding:10px 0;min-width:320px;display:none;z-index:20}
.nav-dropdown li{list-style:none}
.nav-dropdown a{display:block;padding:10px 22px;font-size:.9rem;color:var(--ink);white-space:normal}
.nav-dropdown a:hover{background:var(--bg);color:var(--brand)}
.nav-cta{background:var(--brand);color:#fff;padding:11px 20px;font-size:.88rem;font-weight:500;border:none;letter-spacing:.02em}
.nav-cta:hover{background:var(--brand-deep);color:#fff;text-decoration:none}
.nav-toggle{display:none;background:transparent;border:1px solid var(--line);padding:8px 10px;cursor:pointer}

.hero{position:relative;min-height:560px;display:flex;align-items:center;color:var(--surface);background-image:linear-gradient(rgba(26,34,51,.78),rgba(26,34,51,.65)),url('../visuals/home-hero.jpg');background-size:cover;background-position:center}
.hero-inner{position:relative;z-index:2;padding:80px 0 100px}
.hero-status{display:inline-flex;align-items:center;gap:10px;background:transparent;border:1px solid rgba(244,241,234,.3);padding:7px 14px;font-size:.78rem;letter-spacing:.08em;margin-bottom:26px;text-transform:uppercase}
.hero-status .dot{width:6px;height:6px;background:var(--brand);display:inline-block}
.hero h1{color:#fff;max-width:820px;margin-bottom:18px}
.hero-sub{color:rgba(244,241,234,.88);max-width:640px;font-size:1.05rem}
.toc-list{list-style:none;padding:0;margin:30px 0 36px;max-width:680px}
.toc-list li{padding:14px 0;border-bottom:1px solid rgba(244,241,234,.15);display:flex;gap:20px;align-items:baseline;color:rgba(244,241,234,.92)}
.toc-list .num{font-family:"Noto Serif JP",serif;font-size:1.2rem;color:var(--brand);min-width:32px;font-weight:700}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;font-weight:500;font-size:.94rem;border:1px solid transparent;cursor:pointer;transition:all .2s;font-family:inherit;letter-spacing:.02em}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);color:#fff;text-decoration:none}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;text-decoration:none}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand);color:#fff;text-decoration:none}

section{padding:84px 0}
.section-eyebrow{color:var(--brand);font-size:.78rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;margin-bottom:14px;font-family:"Noto Sans JP",sans-serif}
.section-title{margin-bottom:10px}
.section-lead{color:var(--muted);max-width:700px;margin-bottom:46px;font-size:1.02rem}

.mission{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mission-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.mission-grid img{border-radius:var(--radius)}

.module-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:44px;gap:24px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:26px}
.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px 30px}
.note{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);padding:0;transition:border-color .2s}
.note:hover{border-color:var(--brand)}
.note-media{aspect-ratio:4/3;overflow:hidden;background:var(--line)}
.note-media img{width:100%;height:100%;object-fit:cover}
.note-body{padding:22px 26px 28px;display:flex;flex-direction:column;flex:1}
.note-num{font-family:"Noto Serif JP",serif;color:var(--brand);font-size:.92rem;letter-spacing:.12em;margin-bottom:10px}
.note h3{font-size:1.1rem;margin-bottom:10px;line-height:1.45}
.note-summary{color:var(--muted);font-size:.92rem;margin-bottom:18px;flex:1}
.note-cta{color:var(--brand);font-weight:600;font-size:.88rem;display:inline-flex;align-items:center;gap:6px;letter-spacing:.04em}
.note-cta:hover{gap:10px}
.note-all{background:var(--ink);color:var(--surface);border-color:var(--ink)}
.note-all .note-body{justify-content:center;align-items:flex-start;text-align:left;padding:34px 28px}
.note-all h3,.note-all .note-summary{color:var(--surface)}
.note-all .note-cta{color:var(--surface)}
.note-all .note-num{color:var(--brand)}

.advantages{background:var(--bg)}
.advantages-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.advantage{padding:34px 28px;border-right:1px solid var(--line)}
.advantage:last-child{border-right:none}
.advantage-num{font-family:"Noto Serif JP",serif;color:var(--brand);font-size:1.1rem;font-weight:700;margin-bottom:12px;letter-spacing:.1em}
.advantage h4{margin-bottom:8px}
.advantage p{font-size:.92rem;color:var(--muted);margin:0}

.about{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-grid img{border-radius:var(--radius)}

.closing{background:var(--bg)}
.closing-inner{max-width:720px}
.closing .hero-cta{margin-top:24px}

.faq{background:var(--surface);border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);padding:0}
.faq-item summary{padding:22px 0;cursor:pointer;font-weight:600;font-family:"Noto Serif JP",serif;font-size:1.08rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.4rem;color:var(--brand);font-family:"Noto Serif JP",serif}
.faq-item[open] summary::after{content:"−"}
.faq-item div{padding:0 0 22px;color:var(--muted);font-size:.96rem;max-width:780px}

.methodology{background:var(--bg);border-top:1px solid var(--line)}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin-top:46px}
.principle{padding:0;border-top:2px solid var(--brand);padding-top:24px}
.principle-num{font-family:"Noto Serif JP",serif;color:var(--brand);font-size:.82rem;letter-spacing:.16em;margin-bottom:10px;font-weight:700;text-transform:uppercase}
.principle h4{margin-bottom:8px}
.principle p{color:var(--muted);font-size:.94rem;margin:0}

.glossary{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.glossary-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0;margin-top:36px}
.glossary-item{padding:24px 0;border-bottom:1px solid var(--line);padding-right:28px}
.glossary-item:nth-child(odd){padding-right:28px}
.glossary-item dt{font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.05rem;margin-bottom:6px;color:var(--ink)}
.glossary-item dd{margin:0;color:var(--muted);font-size:.92rem;line-height:1.65}

.breadcrumbs{font-size:.85rem;color:var(--muted);padding:24px 0 0;letter-spacing:.02em}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--brand)}

.page-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:56px 0 44px}
.page-hero h1{margin-bottom:14px}

.article{padding:62px 0 80px;background:var(--surface)}
.article-meta{font-family:"Noto Sans JP",sans-serif;font-size:.82rem;color:var(--muted);margin-bottom:22px;letter-spacing:.06em;text-transform:uppercase}
.article-cover{width:100%;aspect-ratio:16/8;object-fit:cover;margin:28px 0 40px;border-radius:var(--radius)}
.article-body h2{margin-top:52px;padding-top:22px;border-top:2px solid var(--rule)}
.article-body h3{margin-top:36px}
.article-body p{font-size:1.04rem;line-height:1.9}
.article-body ul,.article-body ol{padding-left:1.4em;line-height:1.85}
.article-body li{margin-bottom:6px}
.article-body blockquote{border-left:4px solid var(--brand);padding:14px 22px;background:var(--bg);margin:32px 0;color:var(--muted);font-family:"Noto Serif JP",serif;font-size:.98rem}
.references{margin-top:40px;padding:26px 30px;background:var(--bg);border-left:4px solid var(--accent)}
.references h4{font-family:"Noto Serif JP",serif;margin-top:0;margin-bottom:14px;font-size:1.02rem;letter-spacing:.02em}
.references ul{margin:0;padding-left:1.2em;color:var(--muted);font-size:.92rem}
.references li{margin-bottom:6px}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:60px;padding-top:34px;border-top:2px solid var(--rule)}
.prev-next a{display:block;padding:22px 26px;border:1px solid var(--line);color:var(--ink);background:var(--bg);transition:background .2s}
.prev-next a:hover{background:var(--surface);text-decoration:none;border-color:var(--brand)}
.prev-next .label{font-size:.76rem;color:var(--muted);text-transform:uppercase;letter-spacing:.14em;font-weight:600;margin-bottom:6px;display:block}
.prev-next .title{font-size:.98rem;font-weight:600;color:var(--ink);font-family:"Noto Serif JP",serif}
.prev-next .next{text-align:right}

.list-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;margin-top:40px}

.legal-page{padding:54px 0 84px;background:var(--surface)}
.legal-page .container-narrow h2{margin-top:44px;padding-top:22px;border-top:2px solid var(--rule)}
.legal-page dl dt{font-weight:600;margin-top:20px;font-family:"Noto Serif JP",serif}
.legal-page dl dd{margin:4px 0 0;color:var(--muted)}

.contact-sect{background:var(--bg);padding:70px 0}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:36px}
.contact-info{background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--brand);padding:40px}
.contact-info ul{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:26px}
.contact-info li{display:flex;gap:16px;align-items:flex-start}
.contact-info .ic{flex-shrink:0;color:var(--brand);display:inline-flex;padding:6px;background:var(--bg)}
.contact-info strong{display:block;font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.14em;margin-bottom:5px;font-weight:600}
.contact-info a,.contact-info span{color:var(--ink);word-break:break-all;font-size:.95rem}
.contact-form-card{background:var(--surface);border:1px solid var(--line);padding:40px}
.contact-form-card form{display:grid;gap:20px}
.contact-form-card label{display:block;font-size:.84rem;color:var(--ink);font-weight:500;margin-bottom:6px;letter-spacing:.04em;font-family:"Noto Sans JP",sans-serif}
.contact-form-card input[type=text],.contact-form-card input[type=email],.contact-form-card textarea{width:100%;padding:12px 14px;border:1px solid var(--line);background:var(--bg);font-family:inherit;font-size:.96rem;color:var(--ink);border-radius:var(--radius-sm)}
.contact-form-card textarea{min-height:160px;resize:vertical}
.contact-form-card input:focus,.contact-form-card textarea:focus{outline:none;border-color:var(--brand);background:var(--surface)}
.contact-form-card button{justify-self:flex-start}
.consent-row{display:flex;gap:10px;align-items:flex-start;font-size:.82rem;color:var(--muted);line-height:1.5}
.consent-row input{margin-top:3px}

.map-wrap{padding:0 0 60px;background:var(--bg)}
.map-frame{position:relative;width:100%;height:420px;overflow:hidden;border:1px solid var(--line)}
.map-frame iframe{width:100%;height:100%;border:0}
.map-link{display:inline-block;margin-top:14px;font-size:.88rem}

.footer{background:var(--ink);color:rgba(244,241,234,.82);padding:64px 0 24px;border-top:4px solid var(--brand)}
.footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:44px}
.footer h5{color:var(--surface);font-size:.82rem;letter-spacing:.16em;margin-bottom:22px;text-transform:uppercase;font-family:"Noto Sans JP",sans-serif;font-weight:600}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.footer a{color:rgba(244,241,234,.82);font-size:.92rem}
.footer a:hover{color:var(--surface);text-decoration:underline}
.footer .contact-line{display:flex;gap:12px;margin-bottom:14px;font-size:.92rem;align-items:flex-start}
.footer .contact-line .ic{flex-shrink:0;margin-top:3px;color:var(--brand)}
.footer form{display:grid;gap:10px;margin-top:4px}
.footer input[type=email],.footer input[type=text]{padding:10px 12px;border:1px solid rgba(244,241,234,.2);background:transparent;color:var(--surface);font-size:.9rem;font-family:inherit;border-radius:var(--radius-sm)}
.footer input::placeholder{color:rgba(244,241,234,.5)}
.footer .consent-row{color:rgba(244,241,234,.6);font-size:.78rem}
.footer button[type=submit]{background:var(--brand);color:#fff;border:none;padding:10px 16px;font-family:inherit;font-size:.88rem;font-weight:500;cursor:pointer;border-radius:var(--radius-sm);letter-spacing:.04em}
.footer button[type=submit]:hover{background:var(--brand-deep)}
.footer .copy{text-align:center;border-top:1px solid rgba(244,241,234,.1);margin-top:48px;padding-top:24px;font-size:.8rem;color:rgba(244,241,234,.55);letter-spacing:.04em}
.footer .manage-cookie{background:none;border:none;color:rgba(244,241,234,.82);cursor:pointer;font-family:inherit;font-size:.92rem;padding:0;text-align:left}
.footer .manage-cookie:hover{color:var(--surface);text-decoration:underline}

.cookie-banner{position:fixed;left:0;right:0;bottom:0;background:var(--ink);color:var(--surface);padding:22px 24px;z-index:100;display:none;border-top:4px solid var(--brand)}
.cookie-banner.open{display:block}
.cookie-banner-inner{max-width:1180px;margin:0 auto;display:flex;gap:28px;align-items:center;flex-wrap:wrap}
.cookie-banner h4{color:var(--surface);font-size:1rem;margin:0 0 6px;font-family:"Noto Sans JP",sans-serif}
.cookie-banner p{color:rgba(244,241,234,.75);font-size:.88rem;margin:0;max-width:640px}
.cookie-banner .actions{display:flex;gap:10px;margin-left:auto;flex-wrap:wrap}
.cookie-banner .btn{padding:10px 18px;font-size:.88rem}
.cookie-banner a{color:var(--surface);font-size:.82rem}

.modal-backdrop{position:fixed;inset:0;background:rgba(26,34,51,.6);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal-backdrop.open{display:flex}
.modal-card{background:var(--surface);padding:40px;max-width:420px;width:100%;text-align:center;border-top:4px solid var(--brand)}
.modal-card .ic-ok{color:var(--brand);display:inline-flex;margin-bottom:14px}
.modal-card h4{margin-bottom:8px}
.modal-card p{color:var(--muted);font-size:.95rem;margin:0}

@media (max-width:980px){
  .articles-grid,.advantages-grid,.principles{grid-template-columns:repeat(2,1fr)}
  .advantages-grid{grid-template-rows:auto auto;border-left:1px solid var(--line);border-right:1px solid var(--line)}
  .advantage{border-right:1px solid var(--line)}
  .advantage:nth-child(2n){border-right:none}
  .advantage:nth-child(1),.advantage:nth-child(2){border-bottom:1px solid var(--line)}
  .mission-grid,.about-grid,.contact-grid,.glossary-list{grid-template-columns:1fr;gap:32px}
  .list-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-list{display:none}
  .topnav-inner.open .nav-list{display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:var(--surface);padding:18px 24px;gap:14px;border-bottom:2px solid var(--rule)}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-dropdown{position:static;padding:6px 0 0;border:none;min-width:auto}
  .cookie-banner-inner{flex-direction:column;align-items:flex-start}
  .cookie-banner .actions{margin-left:0;width:100%}
}
@media (max-width:640px){
  section{padding:56px 0}
  .hero{min-height:500px}
  .hero-inner{padding:56px 0 72px}
  .articles-grid,.advantages-grid,.principles{grid-template-columns:1fr}
  .advantage{border-right:none;border-bottom:1px solid var(--line)}
  .advantage:last-child{border-bottom:none}
  .prev-next{grid-template-columns:1fr}
  .prev-next .next{text-align:left}
  .footer-grid{grid-template-columns:1fr}
  .contact-info,.contact-form-card{padding:28px}
}