:root{
  --green-dark:#0F3D2E;
  --green:#1A5A42;
  --cream:#F6F5F2;
  --beige:#BFAE9F;
  --ink:#1A1A1A;
  --gray:#4A4A4A;
  --line:#E0E0E0;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:'Noto Sans JP','Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--ink);background:var(--cream);
  line-height:1.9;font-weight:300;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--green)}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.container.narrow{max-width:760px}
.center{text-align:center}
.center-text{text-align:center}

/* header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(246,245,242,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{max-width:1120px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--green-dark);font-weight:600;letter-spacing:.14em}
.brand img{width:38px;height:38px;object-fit:contain}
.site-nav{display:flex;align-items:center;gap:22px}
.site-nav a{text-decoration:none;color:var(--gray);font-size:.86rem;letter-spacing:.06em}
.site-nav a:hover{color:var(--green)}
.site-nav .nav-cta{background:var(--green-dark);color:#fff;padding:8px 18px;border-radius:999px;font-weight:500}
.site-nav .nav-cta:hover{background:var(--green);color:#fff}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--green-dark);margin:5px 0;transition:.3s}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden}
.hero-bg,.hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,61,46,.55),rgba(15,61,46,.72))}
.hero-content{position:relative;padding:140px 24px 90px;max-width:860px}
.hero-logo img{width:190px;height:190px;object-fit:contain;margin:0 auto 26px}
.hero h1{font-family:'Inter',sans-serif;font-size:clamp(1.7rem,4.6vw,3.1rem);font-weight:600;letter-spacing:.18em;line-height:1.5}
.hero-sub{font-size:clamp(1.15rem,2.6vw,1.6rem);letter-spacing:.5em;margin-top:22px;font-weight:400}
.hero-lead{margin-top:14px;font-size:1rem;letter-spacing:.12em;opacity:.92}
.hero-actions{margin-top:38px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-size:.72rem;letter-spacing:.4em;opacity:.85;text-transform:uppercase}
.btn{display:inline-block;text-decoration:none;padding:13px 32px;border-radius:999px;font-weight:500;letter-spacing:.08em;font-size:.95rem;transition:.25s;border:1px solid transparent;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--green-dark);color:#fff}
.btn-primary:hover{background:var(--green)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.65)}
.btn-ghost:hover{background:rgba(255,255,255,.25)}
.btn-large{padding:15px 52px;font-size:1rem}

/* sections */
.section{padding:110px 0}
.section-alt{background:#fff}
.section-eyebrow{text-align:center;color:var(--green);letter-spacing:.3em;font-size:.8rem;font-weight:500;text-transform:uppercase}
.section-title{font-size:clamp(1.5rem,3.4vw,2.2rem);font-weight:600;text-align:center;line-height:1.7;margin:10px 0 18px;color:var(--green-dark)}
.section-title.light{color:#fff}
.section-lead{text-align:center;color:var(--gray);margin-bottom:44px}
.section p{margin-bottom:1.4em}
.subsection-title{text-align:center;font-size:1.3rem;font-weight:600;color:var(--green-dark);margin:64px 0 22px}
.note{text-align:center;color:var(--gray);font-size:.92rem;margin-top:26px}
.wide-img img{width:100%;border-radius:var(--radius);margin:10px 0 40px}

/* cards */
.grid{display:grid;gap:22px;margin-top:44px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px}
.section .card{background:#fff}
.section-alt .card{background:var(--cream)}
.card h3{font-size:1.12rem;font-weight:600;margin-bottom:10px;color:var(--green-dark);line-height:1.6}
.card p{color:var(--gray);font-size:.95rem;margin-bottom:0}
.num{font-family:'Inter',sans-serif;color:var(--beige);font-size:1.5rem;font-weight:600;letter-spacing:.1em;margin-bottom:10px}
.x-card{text-align:center}
.x-symbol{font-size:2.3rem;color:var(--green);font-weight:300;line-height:1.2;margin-bottom:12px}
.domain-icon{font-size:1.9rem;margin-bottom:12px}
.eco-card ul{list-style:none;margin-top:12px}
.eco-card li{color:var(--gray);font-size:.93rem;padding:7px 0;border-top:1px dashed var(--line)}
.eco-sub{color:var(--green);font-weight:500}
.origin-card h3 span{font-size:.9rem;color:var(--beige);font-weight:500;margin-left:6px}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:7px;margin:4px 0 14px}
.tags li{background:rgba(26,90,66,.08);color:var(--green);font-size:.76rem;padding:3px 11px;border-radius:999px;font-weight:400}

/* vision */
.vision{position:relative;padding:120px 0;color:#fff;overflow:hidden}
.vision-bg,.vision-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.vision-overlay{position:absolute;inset:0;background:rgba(15,61,46,.82)}
.vision-content{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px}
.vision-label{letter-spacing:.4em;font-size:.82rem;color:var(--beige);font-weight:500}
.vision-block h2{font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.7;font-weight:600;margin:14px 0 16px}
.vision-block p{opacity:.92}

/* philosophy */
.philosophy-lead{font-size:1.2rem;color:var(--green);font-weight:500;margin-bottom:26px}

/* contact */
.contact{background:var(--green-dark);color:#fff}
.contact-lead{text-align:center;opacity:.92}
.contact-form{margin-top:46px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:38px 34px}
.form-row{margin-bottom:22px}
.form-row label{display:block;font-size:.9rem;margin-bottom:8px;font-weight:400}
.req{background:#b3452e;color:#fff;font-size:.68rem;padding:2px 8px;border-radius:999px;margin-left:6px;vertical-align:middle}
.form-row input[type=text],.form-row input[type=email],.form-row select,.form-row textarea{
  width:100%;padding:13px 15px;border-radius:9px;border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.96);color:var(--ink);font-family:inherit;font-size:.97rem;font-weight:300}
.form-row.check label{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;cursor:pointer}
.form-row.check input{margin-top:7px;width:17px;height:17px;accent-color:var(--beige)}
.form-row.check a{color:var(--beige)}
.form-status{text-align:center;min-height:1.6em;font-size:.93rem;margin-bottom:14px}
.form-status.ok{color:#a9dcc2}
.form-status.ng{color:#f2b8a2}
.contact .btn-primary{background:var(--beige);color:var(--green-dark)}
.contact .btn-primary:hover{background:#fff}
.contact-sns{text-align:center;margin-top:38px;font-size:.93rem;opacity:.92}
.contact-sns a{color:var(--beige)}

/* footer */
.site-footer{background:#0b2e22;color:#cfd8d2;padding:56px 0 40px}
.footer-inner{text-align:center}
.footer-brand{display:flex;align-items:center;justify-content:center;gap:10px;color:#fff;font-weight:600;letter-spacing:.14em;margin-bottom:24px}
.footer-brand img{width:42px;height:42px;object-fit:contain}
.footer-nav{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:center;margin-bottom:26px}
.footer-nav a{color:#cfd8d2;text-decoration:none;font-size:.86rem}
.footer-nav a:hover{color:#fff}
.copyright{font-size:.8rem;opacity:.65}

/* legal page */
.legal{padding:150px 0 100px}
.legal h1{font-size:1.7rem;color:var(--green-dark);font-weight:600;margin-bottom:12px}
.legal h2{font-size:1.08rem;color:var(--green-dark);font-weight:600;margin:34px 0 8px}
.legal p,.legal li{color:var(--gray);font-size:.95rem}
.legal ul{padding-left:1.4em;margin-bottom:1em}
.legal .updated{color:var(--beige);font-size:.85rem;margin-bottom:30px}
.back-link{display:inline-block;margin-top:44px}

/* responsive */
@media (max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .vision-content{grid-template-columns:1fr;gap:44px}
}
@media (max-width:720px){
  .section{padding:78px 0}
  .nav-toggle{display:block}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;
    background:var(--cream);padding:14px 24px 22px;border-bottom:1px solid var(--line);gap:4px}
  .site-nav.open{display:flex}
  .site-nav a{padding:9px 4px}
  .site-nav .nav-cta{text-align:center;margin-top:8px}
  .grid-4,.grid-3{grid-template-columns:1fr}
  .hero-logo img{width:140px;height:140px}
  .hero-sub{letter-spacing:.3em}
  .contact-form{padding:28px 20px}
}

/* AIO: FAQ */
.faq{margin-top:40px;text-align:left}
.faq-item{border-top:1px solid var(--line);padding:22px 4px}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item dt{font-weight:600;color:var(--green-dark);margin-bottom:8px}
.faq-item dt::before{content:"Q. ";color:var(--green)}
.faq-item dd{color:var(--gray)}
.faq-item dd::before{content:"A. ";font-weight:600;color:var(--green)}