:root {
  --ink: #18201f;
  --muted: #64716e;
  --line: #dce3df;
  --paper: #f7f8f5;
  --white: #ffffff;
  --forest: #0c473b;
  --forest-2: #143e36;
  --copper: #b47853;
  --shadow: 0 24px 70px rgba(22, 32, 30, 0.14);
  --radius: 8px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans JP", system-ui, sans-serif; line-height: 1.7; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.site-header { position: fixed; inset: 0 0 auto; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px clamp(18px, 4vw, 54px); background: rgba(247, 248, 245, 0.88); border-bottom: 1px solid rgba(220, 227, 223, 0.7); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 250px; }
.brand-mark { display: grid; width: 52px; height: 42px; place-items: center; color: var(--white); background: var(--forest); border-radius: 8px; font-family: Inter, sans-serif; font-size: 13px; font-weight: 800; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 16px; line-height: 1.1; }
.brand small { color: var(--muted); font-size: 11px; }
.site-nav { display: flex; align-items: center; gap: 22px; color: #34413e; font-size: 14px; font-weight: 700; }
.site-nav a { padding: 8px 0; }
.nav-cta { padding: 10px 16px !important; color: var(--white); background: var(--forest); border-radius: 8px; }
.nav-toggle { display: none; }
.hero { display: grid; grid-template-columns: minmax(0, .95fr) minmax(420px, 1.05fr); gap: clamp(32px, 5vw, 78px); align-items: center; min-height: 92vh; padding: 118px clamp(20px, 5vw, 72px) 42px; }
.hero-copy { max-width: 660px; }
.eyebrow { margin: 0 0 14px; color: var(--copper); font-family: Inter, sans-serif; font-size: 12px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 22px; font-size: clamp(40px, 4.4vw, 56px); line-height: 1.08; letter-spacing: 0; }
h2 { margin-bottom: 20px; font-size: clamp(30px, 4vw, 52px); line-height: 1.13; letter-spacing: 0; }
h3 { margin-bottom: 8px; font-size: 18px; line-height: 1.35; }
.lead { max-width: 610px; color: #46534f; font-size: clamp(16px, 1.6vw, 19px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 34px 0; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 20px; border: 1px solid transparent; border-radius: 8px; font-weight: 800; cursor: pointer; }
.button.primary { color: var(--white); background: var(--forest); box-shadow: 0 16px 32px rgba(12, 71, 59, .22); }
.button.ghost { color: var(--forest); background: rgba(255,255,255,.7); border-color: var(--line); }
.purpose-nav { max-width: 680px; }
.purpose-nav > p { margin-bottom: 10px; color: var(--muted); font-size: 13px; font-weight: 800; }
.purpose-nav > div { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.purpose-nav a { display: grid; gap: 3px; padding: 14px; background: rgba(255,255,255,.72); border: 1px solid var(--line); border-radius: var(--radius); }
.purpose-nav strong, .purpose-nav span { display: block; }
.purpose-nav strong { font-size: 14px; }
.purpose-nav span { color: var(--muted); font-size: 12px; }
.hero-visual { position: relative; min-height: 540px; overflow: hidden; background: #dfe3df; border-radius: 8px; box-shadow: var(--shadow); }
.hero-visual img { width: 100%; height: 100%; min-height: 540px; object-fit: cover; }
.status-panel { position: absolute; right: 22px; bottom: 22px; max-width: 270px; padding: 18px; color: var(--white); background: rgba(18,35,32,.78); border: 1px solid rgba(255,255,255,.16); border-radius: 8px; backdrop-filter: blur(14px); }
.status-panel span, .status-panel strong { display: block; }
.status-panel span { color: #c9d8d2; font-family: Inter, sans-serif; font-size: 12px; font-weight: 800; }
.trust-band { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; padding: 18px clamp(20px, 5vw, 72px); color: #35423f; background: var(--white); border-block: 1px solid var(--line); font-weight: 700; }
.trust-band span { padding: 8px 14px; background: var(--paper); border-radius: 8px; }
.section { padding: clamp(72px, 9vw, 124px) clamp(20px, 5vw, 72px); }
.split, .two-column, .contact { display: grid; grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr); gap: clamp(30px, 5vw, 72px); align-items: start; }
#trust.split { grid-template-columns: minmax(0, .75fr) minmax(640px, 1.25fr); }
.split > div:first-child, .section-heading, .contact-copy { max-width: 720px; }
.section p { color: var(--muted); }
.process, .service-grid, .symptom-grid, .faq-list { display: grid; gap: 14px; }
.process { grid-template-columns: repeat(3, 1fr); }
.process article, .service-grid article, .list-panel > div, details, .recycle-box, .contact-form { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.process article { overflow: hidden; padding: 0; min-height: 250px; }
.process img { width: 100%; height: 170px; object-fit: cover; }
.process span, .process h3, .process p { margin-inline: 24px; }
.process span { display: block; margin-top: 22px; margin-bottom: 48px; color: var(--copper); font-family: Inter, sans-serif; font-weight: 800; }
.process p { margin-bottom: 24px; }
.muted { background: #edf1ed; }
.service-grid { grid-template-columns: repeat(4, 1fr); margin-top: 34px; }
.service-grid article { padding: 24px; }
.dark-panel { min-height: 460px; padding: clamp(28px, 4vw, 46px); color: var(--white); background: linear-gradient(135deg, var(--forest), #102522); border-radius: var(--radius); }
.dark-panel p { color: #c9d8d2; }
.list-panel { display: grid; gap: 14px; }
.list-panel > div { padding: 24px; }
.support, .recycle, .company { background: var(--white); }
.row-heading { display: flex; max-width: none; align-items: end; justify-content: space-between; gap: 24px; }
.text-link { display: inline-flex; margin-top: 12px; color: var(--forest); font-weight: 800; border-bottom: 2px solid currentColor; }
.symptom-grid { grid-template-columns: repeat(4, 1fr); margin-top: 30px; }
.symptom-grid a { display: flex; min-height: 62px; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 18px; color: var(--forest); background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); font-weight: 800; }
.symptom-grid a::after { content: "→"; color: var(--copper); font-family: Inter, sans-serif; }
.buying-guide { display: grid; grid-template-columns: minmax(0, .95fr) minmax(360px, 1.05fr); gap: clamp(24px, 4vw, 46px); align-items: center; margin-top: 26px; overflow: hidden; color: var(--white); background: var(--forest-2); border-radius: var(--radius); }
.buying-guide > div { padding: clamp(28px, 5vw, 52px); }
.buying-guide h3 { margin-bottom: 16px; font-size: clamp(24px, 3vw, 38px); }
.buying-guide p { color: #d5e2dc; }
.buying-guide img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; }
.recycle-box { padding: clamp(26px, 4vw, 48px); background: linear-gradient(135deg, rgba(12,71,59,.08), rgba(180,120,83,.12)), var(--paper); }
.recycle-box span { color: var(--copper); font-family: Inter, sans-serif; font-weight: 800; }
.faq-list { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: none; }
details { padding: 20px 24px; }
summary { color: var(--ink); font-weight: 800; cursor: pointer; }
details p { margin: 14px 0 0; }
.company { grid-template-columns: minmax(260px, .55fr) minmax(720px, 1.45fr); }
.company-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.company-grid div { display: grid; grid-template-columns: 130px 1fr; gap: 18px; align-items: center; padding: 18px 20px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.company-grid span { color: var(--muted); font-size: 13px; font-weight: 800; }
.company-grid strong { color: var(--ink); font-size: 15px; }
.contact { color: var(--white); background: var(--forest-2); }
.contact p { color: #c9d8d2; }
.contact-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; padding: clamp(22px, 4vw, 34px); color: var(--ink); }
.contact-form label { display: grid; gap: 7px; color: #33403d; font-size: 13px; font-weight: 800; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; min-height: 46px; padding: 12px 13px; color: var(--ink); background: #f8faf8; border: 1px solid #d8e0dc; border-radius: 8px; font: inherit; }
.contact-form textarea { resize: vertical; }
.order-field[hidden], [data-quantity-field][hidden], .hidden { display: none; }
.order-field span { color: var(--muted); font-size: 12px; font-weight: 700; }
.form-status { margin: 0; padding: 14px 16px; border-radius: 8px; font-size: 13px; font-weight: 800; line-height: 1.7; }
.form-status.is-success { color: #123f31; background: #e8f4ef; border: 1px solid #b9d7ca; }
.form-status.is-error { color: #5c1c1c; background: #fff1ef; border: 1px solid #efc5bf; }
.full { grid-column: 1 / -1; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 32px clamp(20px, 5vw, 72px); color: #c9d8d2; background: #0d1715; }
.site-footer strong, .site-footer a { color: var(--white); }
.site-footer p { margin: 4px 0 0; }
.site-footer a { font-weight: 800; }
.support-page { min-height: 100vh; padding: clamp(28px, 5vw, 72px); background: var(--paper); }
.breadcrumb { display: inline-flex; margin-bottom: 34px; color: var(--forest); font-weight: 800; }
.support-hero { max-width: 980px; margin-bottom: 42px; }
.support-hero h1 { max-width: 900px; font-size: clamp(40px, 6vw, 72px); }
.support-hero p { max-width: 780px; color: var(--muted); font-size: 18px; }
.support-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 380px); gap: 18px; align-items: start; max-width: 1180px; }
.support-article, .support-aside { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.support-article { padding: clamp(26px, 4vw, 44px); }
.support-article h2, .support-aside h2 { font-size: 22px; }
.support-article h2:not(:first-child) { margin-top: 36px; }
.support-article p, .support-article li, .support-aside p { color: var(--muted); }
.support-article ol { margin: 0; padding-left: 1.35em; }
.support-article li + li { margin-top: 10px; }
.support-aside { position: sticky; top: 100px; padding: 26px; }
.support-aside .button { width: 100%; margin-top: 12px; }
@media (max-width: 1080px) {
  .hero, .split, .two-column, .contact, #trust.split { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .service-grid, .symptom-grid { grid-template-columns: repeat(2, 1fr); }
  .buying-guide, .support-layout { grid-template-columns: 1fr; }
  .support-aside { position: static; }
}
@media (max-width: 820px) {
  .nav-toggle { display: grid; width: 44px; height: 44px; place-items: center; background: var(--white); border: 1px solid var(--line); border-radius: 8px; }
  .nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); }
  .site-nav { position: fixed; top: 78px; left: 14px; right: 14px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 14px; background: var(--white); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px; }
  .nav-cta { text-align: center; }
  .hero { padding-top: 106px; }
  .purpose-nav > div, .process, .symptom-grid, .faq-list, .company-grid { grid-template-columns: 1fr; }
  .hero-visual, .hero-visual img { min-height: 380px; }
  .row-heading { display: block; }
}
@media (max-width: 620px) {
  .brand { min-width: 0; }
  .brand small { display: none; }
  h1 { font-size: 40px; }
  h2 { font-size: 30px; }
  .hero-actions, .button { width: 100%; }
  .service-grid, .contact-form, .company-grid div, .buying-guide { grid-template-columns: 1fr; }
  .status-panel { left: 16px; right: 16px; bottom: 16px; }
  .site-footer { display: block; }
  .site-footer a { display: inline-flex; margin-top: 14px; }
}