:root {
  --ink: #173638;
  --ink-soft: #4f6768;
  --green: #0d6d65;
  --green-dark: #09534d;
  --mint: #e1f1ed;
  --mint-pale: #f1f8f6;
  --orange: #e77939;
  --orange-dark: #c65c23;
  --cream: #fbf8f1;
  --white: #ffffff;
  --line: #dce8e5;
  --shadow: 0 18px 50px rgba(23, 54, 56, .10);
  --radius: 24px;
  --font-sans: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-serif: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
.container { width: min(1140px, calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 1000; padding: 10px 18px; background: var(--ink); color: white; }
.skip-link:focus { top: 12px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 12px; color: var(--green); font-size: .78rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.eyebrow::before { width: 26px; height: 2px; content: ""; background: var(--orange); }
.section-title { margin: 0; font-family: var(--font-serif); font-size: clamp(2rem, 4vw, 3.15rem); line-height: 1.35; letter-spacing: .03em; }
.section-title span { color: var(--green); }
.section-lead { max-width: 680px; margin: 18px 0 0; color: var(--ink-soft); }
.section-head { margin-bottom: 44px; }
.section-head.center { display: grid; justify-items: center; text-align: center; }
.section { padding: 100px 0; }
.section.soft { background: var(--mint-pale); }
.section.cream { background: var(--cream); }
.button { display: inline-flex; min-height: 56px; align-items: center; justify-content: center; gap: 10px; padding: 0 25px; border: 1px solid transparent; border-radius: 999px; cursor: pointer; font-weight: 800; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(13, 109, 101, .18); }
.button.primary { background: var(--green); color: white; }
.button.orange { background: var(--orange); color: white; }
.button.outline { border-color: var(--green); background: white; color: var(--green); }
.button svg { width: 19px; height: 19px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--green); font-weight: 800; }
.text-link::after { content: "→"; transition: transform .2s; }
.text-link:hover::after { transform: translateX(4px); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid rgba(220, 232, 229, .9); background: rgba(255,255,255,.95); backdrop-filter: blur(12px); }
.header-inner { display: flex; min-height: 82px; align-items: center; gap: 28px; }
.brand { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
.brand-mark { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 50% 50% 46% 54%; background: var(--green); color: white; transform: rotate(-5deg); }
.brand-mark svg { width: 24px; transform: rotate(5deg); }
.brand-copy { line-height: 1.25; }
.brand-name { display: block; font-family: var(--font-serif); font-size: 1.22rem; font-weight: 800; letter-spacing: .06em; }
.brand-tagline { color: var(--ink-soft); font-size: .65rem; letter-spacing: .06em; }
.desktop-nav { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.desktop-nav a { position: relative; padding: 28px 0 25px; color: #365455; font-size: .82rem; font-weight: 700; white-space: nowrap; }
.desktop-nav a::after { position: absolute; right: 0; bottom: 17px; left: 0; height: 2px; content: ""; background: var(--orange); transform: scaleX(0); transition: transform .2s; }
.desktop-nav a:hover::after, .desktop-nav a.current::after { transform: scaleX(1); }
.header-cta { flex-shrink: 0; min-height: 44px; padding-inline: 18px; }
.menu-button { display: none; width: 46px; height: 46px; margin-left: auto; border: 0; border-radius: 50%; background: var(--mint-pale); cursor: pointer; }
.menu-button span { display: block; width: 20px; height: 2px; margin: 5px auto; background: var(--ink); transition: transform .2s, opacity .2s; }

/* Home hero */
.hero { position: relative; overflow: hidden; min-height: 690px; background: #eef2ed; }
.hero-photo { position: absolute; inset: 0; background: url("images/hero-appraisal.webp") center/cover no-repeat; }
.hero-photo::after { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, rgba(250,248,241,.98) 0%, rgba(250,248,241,.95) 31%, rgba(250,248,241,.3) 58%, rgba(250,248,241,0) 78%); }
.hero-inner { position: relative; z-index: 1; display: grid; min-height: 690px; align-items: center; grid-template-columns: .9fr 1.1fr; }
.hero-copy { padding: 70px 0 88px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 13px; border: 1px solid rgba(13,109,101,.25); border-radius: 999px; background: rgba(255,255,255,.82); color: var(--green); font-size: .76rem; font-weight: 800; }
.hero h1 { max-width: 640px; margin: 25px 0 20px; font-family: var(--font-serif); font-size: clamp(2.55rem, 5vw, 4.65rem); line-height: 1.3; letter-spacing: .035em; }
.hero h1 em { position: relative; color: var(--green); font-style: normal; }
.hero h1 em::after { position: absolute; right: 0; bottom: 2px; left: 0; z-index: -1; height: 12px; content: ""; background: #f5cdb6; opacity: .8; }
.hero-lead { max-width: 540px; color: #405d5e; font-size: 1.05rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-notes { display: flex; flex-wrap: wrap; gap: 20px; margin: 27px 0 0; padding: 0; list-style: none; color: var(--ink-soft); font-size: .82rem; font-weight: 700; }
.hero-notes li::before { margin-right: 6px; color: var(--orange); content: "✓"; font-weight: 900; }
.trust-strip { position: relative; z-index: 2; margin-top: -50px; }
.trust-grid { display: grid; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: white; box-shadow: var(--shadow); grid-template-columns: repeat(4,1fr); }
.trust-item { padding: 24px 18px; text-align: center; }
.trust-item + .trust-item { border-left: 1px solid var(--line); }
.trust-item strong { display: block; color: var(--green); font-family: var(--font-serif); font-size: 1.12rem; }
.trust-item span { color: var(--ink-soft); font-size: .75rem; }

/* Cards */
.category-grid { display: grid; gap: 18px; grid-template-columns: repeat(4, 1fr); }
.category-card { position: relative; overflow: hidden; min-height: 240px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: white; transition: transform .2s, box-shadow .2s; }
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.category-card::before { position: absolute; right: -32px; bottom: -58px; width: 160px; height: 160px; border-radius: 50%; content: ""; background: var(--mint); }
.category-icon { position: relative; display: grid; width: 60px; height: 60px; margin-bottom: 36px; place-items: center; border-radius: 18px; background: var(--mint-pale); color: var(--green); }
.category-icon svg { width: 31px; height: 31px; }
.category-card h3 { position: relative; margin: 0 0 8px; font-family: var(--font-serif); font-size: 1.25rem; }
.category-card p { position: relative; margin: 0; color: var(--ink-soft); font-size: .82rem; }
.split { display: grid; align-items: center; gap: 70px; grid-template-columns: 1fr 1fr; }
.visual-card { position: relative; }
.visual-card img { width: 100%; aspect-ratio: 1.15; border-radius: 36px 36px 100px 36px; object-fit: cover; }
.visual-note { position: absolute; right: -18px; bottom: 30px; max-width: 210px; padding: 20px 22px; border-radius: 16px; background: white; box-shadow: var(--shadow); }
.visual-note strong { display: block; color: var(--green); font-family: var(--font-serif); font-size: 1.1rem; }
.visual-note span { color: var(--ink-soft); font-size: .75rem; }
.check-list { display: grid; gap: 15px; margin: 30px 0; padding: 0; list-style: none; }
.check-list li { display: flex; align-items: flex-start; gap: 12px; }
.check-list li::before { display: grid; flex: 0 0 25px; height: 25px; place-items: center; border-radius: 50%; content: "✓"; background: var(--mint); color: var(--green); font-size: .78rem; font-weight: 900; }

.method-grid { display: grid; gap: 24px; grid-template-columns: repeat(3, 1fr); }
.method-card { padding: 34px; border-radius: var(--radius); background: white; box-shadow: 0 10px 34px rgba(23,54,56,.07); }
.method-number { display: flex; align-items: center; gap: 10px; color: var(--orange); font-size: .72rem; font-weight: 900; letter-spacing: .13em; }
.method-card h3 { margin: 18px 0 10px; font-family: var(--font-serif); font-size: 1.5rem; }
.method-card p { min-height: 82px; margin: 0 0 20px; color: var(--ink-soft); font-size: .88rem; }
.method-data { display: grid; gap: 7px; margin-bottom: 22px; padding-top: 17px; border-top: 1px solid var(--line); font-size: .78rem; }
.method-data div { display: flex; justify-content: space-between; }
.method-data span { color: var(--ink-soft); }
.method-data strong { color: var(--green); }

.case-grid { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); }
.case-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.case-image { position: relative; height: 215px; overflow: hidden; background-image: url("images/buyback-items.webp"); background-size: 1450px auto; }
.case-image.camera { background-position: 2% 42%; }
.case-image.watch { background-position: 5% 96%; }
.case-image.bag { background-position: 91% 45%; }
.case-image.cup { background-position: 70% 84%; }
.case-image.box { background-position: 49% 27%; }
.case-image.jewelry { background-position: 43% 91%; }
.case-tag { position: absolute; top: 15px; left: 15px; padding: 5px 10px; border-radius: 999px; background: rgba(255,255,255,.92); color: var(--green); font-size: .7rem; font-weight: 800; }
.case-body { padding: 22px; }
.case-body h3 { min-height: 52px; margin: 0; font-family: var(--font-serif); font-size: 1.03rem; }
.case-price { display: flex; align-items: baseline; gap: 6px; margin-top: 14px; color: var(--orange-dark); }
.case-price strong { font-family: var(--font-serif); font-size: 1.75rem; }
.case-meta { display: flex; justify-content: space-between; margin-top: 10px; color: var(--ink-soft); font-size: .7rem; }
.filter-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; margin: -10px 0 34px; }
.filter-button { padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; background: white; cursor: pointer; color: var(--ink-soft); font-size: .82rem; font-weight: 700; }
.filter-button.active { border-color: var(--green); background: var(--green); color: white; }

.reason-grid { display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); }
.reason-card { padding: 34px 28px; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.reason-card .num { color: #b9d5d0; font-family: var(--font-serif); font-size: 2.8rem; line-height: 1; }
.reason-card h3 { margin: 21px 0 11px; font-family: var(--font-serif); font-size: 1.22rem; }
.reason-card p { margin: 0; color: var(--ink-soft); font-size: .85rem; }

.flow { display: grid; gap: 0; grid-template-columns: repeat(4, 1fr); }
.flow-step { position: relative; padding: 0 24px; text-align: center; }
.flow-step + .flow-step::before { position: absolute; top: 31px; left: -17px; content: "→"; color: #aacac5; font-size: 1.5rem; }
.flow-icon { display: grid; width: 66px; height: 66px; margin: 0 auto 17px; place-items: center; border-radius: 50%; background: var(--green); color: white; font-family: var(--font-serif); font-size: 1.15rem; }
.flow-step h3 { margin: 0 0 7px; font-size: .97rem; }
.flow-step p { margin: 0; color: var(--ink-soft); font-size: .75rem; }

.voice-grid { display: grid; gap: 22px; grid-template-columns: repeat(3,1fr); }
.voice-card { padding: 28px; border-radius: var(--radius); background: white; }
.stars { color: #e99548; letter-spacing: .12em; }
.voice-card blockquote { margin: 16px 0; font-family: var(--font-serif); font-size: 1rem; line-height: 1.85; }
.voice-author { display: flex; align-items: center; gap: 12px; color: var(--ink-soft); font-size: .74rem; }
.avatar { display: grid; width: 39px; height: 39px; place-items: center; border-radius: 50%; background: var(--mint); color: var(--green); font-weight: 900; }

.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-question { display: flex; width: 100%; align-items: center; justify-content: space-between; gap: 20px; padding: 23px 4px; border: 0; background: transparent; cursor: pointer; text-align: left; font-weight: 800; }
.faq-question::before { color: var(--green); content: "Q."; font-family: var(--font-serif); font-size: 1.25rem; }
.faq-question span { flex: 1; }
.faq-question i { position: relative; width: 22px; height: 22px; }
.faq-question i::before, .faq-question i::after { position: absolute; top: 10px; left: 4px; width: 14px; height: 2px; content: ""; background: var(--green); transition: transform .2s; }
.faq-question i::after { transform: rotate(90deg); }
.faq-item.open .faq-question i::after { transform: rotate(0); }
.faq-answer { display: none; padding: 0 44px 24px; color: var(--ink-soft); font-size: .9rem; }
.faq-item.open .faq-answer { display: block; }

/* Lower pages */
.page-hero { padding: 74px 0 70px; background: var(--mint-pale); }
.page-hero .container { display: grid; align-items: end; gap: 35px; grid-template-columns: 1fr auto; }
.page-hero h1 { margin: 8px 0 12px; font-family: var(--font-serif); font-size: clamp(2.4rem, 5vw, 4rem); line-height: 1.3; }
.page-hero p { max-width: 650px; margin: 0; color: var(--ink-soft); }
.page-hero-mark { color: #c8dfda; font-family: var(--font-serif); font-size: clamp(4rem, 10vw, 8rem); line-height: .8; }
.breadcrumbs { padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: .72rem; }
.breadcrumbs a { color: var(--green); }
.notice { padding: 18px 22px; border-left: 4px solid var(--orange); border-radius: 0 12px 12px 0; background: #fff5ed; color: #78513a; font-size: .86rem; }
.items-feature { display: grid; overflow: hidden; border-radius: 32px; background: var(--ink); color: white; grid-template-columns: .95fr 1.05fr; }
.items-feature img { width: 100%; height: 100%; object-fit: cover; }
.items-feature-copy { padding: 58px; }
.items-feature-copy .section-title { font-size: clamp(1.8rem,3vw,2.6rem); }
.items-feature-copy p { color: #c8d8d7; }
.summary-table { width: 100%; border-collapse: collapse; }
.summary-table th, .summary-table td { padding: 18px 22px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.summary-table th { width: 28%; background: var(--mint-pale); color: var(--green); }
.company-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); }
.contact-layout { display: grid; align-items: start; gap: 50px; grid-template-columns: .72fr 1.28fr; }
.contact-side { position: sticky; top: 110px; padding: 32px; border-radius: var(--radius); background: var(--ink); color: white; }
.contact-side h2 { margin: 0 0 16px; font-family: var(--font-serif); }
.contact-side p { color: #c9d7d7; font-size: .86rem; }
.contact-side-list { display: grid; gap: 14px; margin-top: 26px; }
.contact-side-item { padding: 16px; border-radius: 14px; background: rgba(255,255,255,.08); }
.contact-side-item strong { display: block; font-size: .9rem; }
.contact-side-item span { color: #c9d7d7; font-size: .74rem; }
.form-card { padding: 38px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: var(--shadow); }
.form-row { display: grid; gap: 22px; margin-bottom: 22px; grid-template-columns: 1fr 1fr; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .83rem; font-weight: 800; }
.required { margin-left: 5px; color: var(--orange-dark); font-size: .68rem; }
.field input, .field select, .field textarea { width: 100%; padding: 13px 15px; border: 1px solid #cfdedb; border-radius: 10px; background: #fbfdfc; outline: none; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(13,109,101,.1); }
.field textarea { min-height: 150px; resize: vertical; }
.form-note { margin: 18px 0; color: var(--ink-soft); font-size: .75rem; }
.form-success { display: none; padding: 25px; border-radius: 14px; background: var(--mint-pale); color: var(--green); font-weight: 800; }
.form-success.show { display: block; }

/* CTA + footer */
.cta-section { padding: 85px 0; background: var(--green); color: white; }
.cta-inner { display: grid; align-items: center; gap: 60px; grid-template-columns: 1fr auto; }
.cta-section .eyebrow { color: #c9ebe5; }
.cta-section h2 { margin: 0; font-family: var(--font-serif); font-size: clamp(2rem,4vw,3rem); line-height: 1.4; }
.cta-section p { margin: 13px 0 0; color: #d6ebe7; }
.cta-actions { display: flex; gap: 12px; }
.cta-actions .button { background: white; color: var(--green); }
.cta-actions .button.orange { background: var(--orange); color: white; }
.site-footer { padding: 62px 0 28px; background: #102e30; color: white; }
.footer-grid { display: grid; gap: 60px; grid-template-columns: 1.25fr 2fr; }
.footer-intro p { max-width: 380px; color: #a9c2c2; font-size: .8rem; }
.footer-nav { display: grid; gap: 28px; grid-template-columns: repeat(3,1fr); }
.footer-nav h3 { margin: 0 0 14px; color: #d7e7e5; font-size: .78rem; }
.footer-nav a { display: block; margin: 7px 0; color: #9eb8b7; font-size: .75rem; }
.footer-nav a:hover { color: white; }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 45px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); color: #7f9d9d; font-size: .68rem; }
.floating-cta { position: fixed; right: 20px; bottom: 20px; z-index: 90; display: none; gap: 8px; }
.floating-cta a { display: grid; min-width: 58px; height: 58px; place-items: center; border-radius: 50%; box-shadow: 0 10px 28px rgba(0,0,0,.16); color: white; font-size: .66rem; font-weight: 800; }
.floating-cta .phone { background: var(--green); }
.floating-cta .mail { background: var(--orange); }

.reveal { opacity: 1; transform: none; }

@media (max-width: 1040px) {
  .desktop-nav { display: none; }
  .header-cta { margin-left: auto; }
  .menu-button { display: block; margin-left: 0; }
  .mobile-nav { position: fixed; inset: 82px 0 auto; display: none; padding: 16px 24px 26px; border-bottom: 1px solid var(--line); background: white; box-shadow: var(--shadow); }
  .mobile-nav.open { display: grid; }
  .mobile-nav a { padding: 13px 0; border-bottom: 1px solid var(--line); font-weight: 700; }
  .category-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 760px) {
  body { font-size: 15px; }
  .container { width: min(100% - 32px, 1140px); }
  .section { padding: 72px 0; }
  .header-inner { min-height: 72px; }
  .brand-tagline { display: none; }
  .brand-mark { width: 37px; height: 37px; }
  .header-cta { display: none; }
  .mobile-nav { top: 72px; }
  .hero { min-height: auto; }
  .hero-photo { position: relative; height: 310px; background-position: 66% center; }
  .hero-photo::after { background: linear-gradient(0deg, rgba(250,248,241,1), rgba(250,248,241,0) 45%); }
  .hero-inner { display: block; min-height: auto; }
  .hero-copy { padding: 10px 0 85px; }
  .hero h1 { margin-top: 18px; font-size: clamp(2.3rem, 11vw, 3.35rem); }
  .hero-lead { font-size: .94rem; }
  .hero-actions .button { width: 100%; }
  .hero-notes { gap: 8px 15px; }
  .trust-strip { margin-top: -34px; }
  .trust-grid { grid-template-columns: repeat(2,1fr); }
  .trust-item { padding: 18px 10px; }
  .trust-item + .trust-item { border-left: 0; }
  .trust-item:nth-child(even) { border-left: 1px solid var(--line); }
  .trust-item:nth-child(n+3) { border-top: 1px solid var(--line); }
  .split, .items-feature, .contact-layout { grid-template-columns: 1fr; }
  .split { gap: 42px; }
  .visual-note { right: -5px; }
  .category-grid, .method-grid, .case-grid, .reason-grid, .voice-grid { grid-template-columns: 1fr; }
  .category-card { min-height: 210px; }
  .method-card p { min-height: auto; }
  .flow { gap: 26px; grid-template-columns: 1fr 1fr; }
  .flow-step + .flow-step::before { display: none; }
  .page-hero { padding: 52px 0 48px; }
  .page-hero .container { display: block; }
  .page-hero-mark { display: none; }
  .items-feature-copy { padding: 34px 25px; }
  .summary-table th, .summary-table td { display: block; width: 100%; padding: 13px 16px; }
  .summary-table td { padding-top: 10px; }
  .contact-side { position: static; }
  .form-card { padding: 25px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; }
  .cta-actions { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-nav { grid-template-columns: repeat(2,1fr); }
  .footer-bottom { flex-direction: column; gap: 6px; }
  .floating-cta { display: flex; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}