:root {
  --navy: #0a3d70;
  --navy-deep: #082d52;
  --blue-soft: #eef6fc;
  --orange: #f47a20;
  --orange-dark: #d85e0d;
  --cream: #fff9f0;
  --ink: #17202a;
  --muted: #607080;
  --line: #dce5ec;
  --white: #fff;
  --shadow: 0 16px 44px rgba(15, 48, 76, .11);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #f7f8f9;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.75;
  overflow-wrap: anywhere;
}
img { display: block; max-width: 100%; }
a { color: var(--navy); }
button, select { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid rgba(8,45,82,.08);
  backdrop-filter: blur(12px);
}
.header-inner {
  width: min(1120px, calc(100% - 32px));
  min-height: 76px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand-logo { display: inline-flex; align-items: center; }
.brand-logo img { width: 154px; height: auto; }
.header-cta, .button-primary, .button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 24px;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.header-cta, .button-primary {
  color: #fff;
  background: var(--orange);
  box-shadow: 0 8px 18px rgba(244,122,32,.22);
}
.button-secondary { color: var(--navy); background: #fff; border: 2px solid var(--navy); }
.header-cta:hover, .button-primary:hover, .button-secondary:hover { transform: translateY(-2px); }

.page-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto 72px;
  background: #fff;
  box-shadow: var(--shadow);
}
.breadcrumb {
  padding: 18px 26px;
  color: var(--muted);
  font-size: .9rem;
}
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.breadcrumb li:not(:last-child)::after { content: "›"; margin-left: 6px; color: #9aa8b5; }

.hero { padding: 0 24px 40px; background: linear-gradient(180deg,#fff 0%,var(--cream) 100%); }
.hero-figure { position: relative; margin: 0 0 32px; border-radius: 0 0 24px 24px; overflow: hidden; background: #e7edf2; }
.hero-figure img { width: 100%; height: min(52vw,590px); object-fit: cover; }
.hero-caption {
  position: absolute;
  right: 14px;
  bottom: 12px;
  max-width: calc(100% - 28px);
  padding: 6px 12px;
  border-radius: 8px;
  color: #fff;
  background: rgba(13,25,36,.78);
  font-size: .76rem;
}
.hero-grid { display: grid; grid-template-columns: minmax(0,1.65fr) minmax(280px,.75fr); gap: 32px; align-items: end; }
.eyebrow { margin: 0 0 8px; color: var(--orange-dark); font-size: .9rem; font-weight: 900; letter-spacing: .1em; }
h1 { margin: 0; color: #172027; font-size: clamp(2rem,5vw,3.65rem); line-height: 1.24; letter-spacing: -.035em; }
.hero-lead { max-width: 720px; margin: 18px 0 0; font-size: 1.04rem; }
.fact-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.fact-card { min-height: 92px; padding: 16px; border: 1px solid #eedfcb; border-radius: 16px; background: rgba(255,255,255,.72); }
.fact-card span { display: block; color: var(--muted); font-size: .82rem; }
.fact-card strong { display: block; margin-top: 3px; color: var(--navy-deep); font-size: 1.03rem; }

.anchor-nav { position: sticky; top: 76px; z-index: 30; display: grid; grid-template-columns: repeat(5,1fr); border-block: 1px solid var(--line); background: rgba(255,255,255,.97); }
.anchor-nav a { padding: 14px 8px; border-right: 1px solid var(--line); color: var(--navy); font-size: .88rem; font-weight: 800; text-align: center; text-decoration: none; }
.anchor-nav a:last-child { border-right: 0; }
.anchor-nav a:hover { background: var(--blue-soft); }

.content-section { padding: 56px 42px; scroll-margin-top: 138px; }
.content-section:nth-of-type(even) { background: #fbfcfd; }
.section-heading { margin: 0; color: var(--navy-deep); font-size: clamp(1.65rem,3.2vw,2.35rem); line-height: 1.35; }
.section-lead { max-width: 830px; margin: 10px 0 28px; color: var(--muted); }
.notice { margin: 24px 0; padding: 16px 18px; border-left: 5px solid var(--orange); border-radius: 10px; background: var(--cream); }

.finder { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: var(--blue-soft); }
.finder label { display: grid; gap: 8px; color: var(--navy-deep); font-weight: 800; }
.finder select { width: 100%; min-height: 50px; padding: 8px 42px 8px 14px; border: 1px solid #b9cbd8; border-radius: 12px; background: #fff; color: var(--ink); }
.filter-status { grid-column: 1/-1; margin: 0; color: var(--muted); font-size: .9rem; }

.history-list { display: grid; min-width: 0; gap: 22px; }
.generation-card { width: 100%; min-width: 0; max-width: 100%; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 9px 28px rgba(19,60,93,.07); overflow: clip; }
.generation-card[hidden] { display: none; }
.generation-summary { list-style: none; display: grid; grid-template-columns: 88px minmax(0,1fr) auto; gap: 20px; align-items: center; padding: 24px; cursor: pointer; }
.generation-summary::-webkit-details-marker { display: none; }
.generation-number { display: grid; place-items: center; width: 74px; aspect-ratio: 1; border-radius: 22px; color: #fff; background: linear-gradient(145deg,var(--navy),#1675ae); font-size: 1.7rem; font-weight: 900; }
.generation-number small { font-size: .66rem; }
.generation-title p { margin: 0 0 3px; color: var(--orange-dark); font-size: .86rem; font-weight: 800; }
.generation-title h3 { margin: 0; color: var(--navy-deep); font-size: 1.3rem; line-height: 1.4; }
.summary-action { min-width: 105px; padding: 10px 14px; border-radius: 999px; color: var(--navy); background: var(--blue-soft); font-weight: 900; text-align: center; }
.generation-card[open] .summary-action::before { content: "閉じる"; }
.generation-card:not([open]) .summary-action::before { content: "詳しく見る"; }
.generation-card:first-child:not([open]) .summary-action { animation: attentionPulse 1.15s ease 2; }
@keyframes attentionPulse { 50% { color:#fff; background:var(--orange); box-shadow:0 0 0 7px rgba(244,122,32,.16); } }
.generation-body { min-width: 0; padding: 0 24px 26px; border-top: 1px solid var(--line); }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; padding: 0; list-style: none; }
.tag-list li { padding: 5px 11px; border-radius: 999px; color: var(--navy); background: var(--blue-soft); font-size: .83rem; font-weight: 800; }
.generation-meta { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin: 18px 0; }
.generation-meta div { padding: 14px; border-radius: 14px; background: #f6f8fa; }
.generation-meta dt { color: var(--muted); font-size: .78rem; }
.generation-meta dd { margin: 3px 0 0; font-weight: 800; }
.table-wrap { width: 100%; min-width: 0; max-width: 100%; overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; min-width: 720px; border-collapse: collapse; font-size: .89rem; }
th, td { padding: 12px 13px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { color: #fff; background: var(--navy); white-space: nowrap; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
tbody th { color: var(--navy-deep); background: #f7fafc; }

.equipment-photo { margin: 0 0 24px; border-radius: 20px; overflow: hidden; background: #dce3e8; }
.equipment-photo img { width: 100%; height: auto; object-fit: cover; }
.equipment-photo figcaption { padding: 8px 12px; color: var(--muted); background: #fff; font-size: .78rem; }
.equipment-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.equipment-card { padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.equipment-icon { display: inline-grid; place-items: center; min-width: 54px; min-height: 38px; margin-bottom: 12px; padding: 4px 10px; border-radius: 10px; color: #fff; background: var(--navy); font-size: .82rem; font-weight: 900; letter-spacing: .04em; }
.equipment-card h3 { margin: 0; color: var(--navy-deep); font-size: 1.04rem; }
.equipment-card p { margin: 7px 0 0; color: var(--muted); font-size: .88rem; }

.check-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; counter-reset: check; }
.check-card { position: relative; min-height: 170px; padding: 22px; border-radius: 18px; background: var(--blue-soft); counter-increment: check; }
.check-card::before { content: counter(check, decimal-leading-zero); display: block; color: var(--orange-dark); font-size: 1.5rem; font-weight: 900; }
.check-card h3 { margin: 6px 0; color: var(--navy-deep); font-size: 1.05rem; }
.check-card p { margin: 0; color: var(--muted); font-size: .87rem; }

.cta-panel { display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; padding: 34px; border-radius: 24px; color: #fff; background: linear-gradient(125deg,var(--navy-deep),var(--navy)); }
.cta-panel h2 { margin: 0; font-size: clamp(1.5rem,3vw,2.2rem); }
.cta-panel p { margin: 10px 0 0; color: rgba(255,255,255,.82); }
.cta-actions { display: grid; gap: 10px; min-width: 220px; }
.cta-panel .button-secondary { color: #fff; border-color: #fff; background: transparent; }

.faq-list { display: grid; gap: 10px; }
.faq-item { border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.faq-item summary { padding: 15px 18px; color: var(--navy-deep); font-weight: 850; cursor: pointer; }
.faq-item p { margin: 0; padding: 0 18px 18px; color: var(--muted); }
.sources { margin: 28px 0 0; padding: 18px 22px; border-radius: 16px; background: #f5f7f9; }
.sources h3 { margin: 0 0 8px; font-size: 1rem; }
.sources ul { margin: 0; padding-left: 20px; }
.sources li { margin: 4px 0; font-size: .86rem; }

.catalog-intro { padding: 56px 42px 24px; background: linear-gradient(145deg,var(--navy-deep),#0d5b91); color: #fff; }
.catalog-intro h1 { color: #fff; }
.catalog-intro p { max-width: 760px; color: rgba(255,255,255,.84); }
.maker-section { padding: 40px 42px; }
.maker-section h2 { margin: 0; color: var(--navy-deep); }
.maker-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 18px; }
.maker-heading__eyebrow { margin: 0 0 2px; color: var(--orange-dark); font-size: .78rem; font-weight: 900; letter-spacing: .08em; }
.maker-heading__help { margin: 0 0 3px; color: var(--muted); font-size: .88rem; }
.kana-filter-box { margin: 0 0 28px; padding: 18px 20px 14px; border: 1px solid #cadbe7; border-radius: 18px; background: var(--blue-soft); }
.kana-filter { gap: 8px; }
.kana-filter--desktop { display: grid; grid-template-columns: minmax(88px,1.25fr) repeat(10,minmax(44px,.8fr)) minmax(76px,1.1fr); }
.kana-filter--mobile { display: none; }
.kana-filter-button {
  min-height: 48px;
  padding: 8px 10px;
  border: 1px solid #abc3d4;
  border-radius: 12px;
  color: var(--navy-deep);
  background: #fff;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 3px 8px rgba(15,48,76,.05);
  transition: color .16s ease, background .16s ease, border-color .16s ease, transform .16s ease;
}
.kana-filter-button:hover { border-color: var(--navy); background: #f8fbfd; transform: translateY(-1px); }
.kana-filter-button:focus-visible { outline: 3px solid rgba(244,122,32,.42); outline-offset: 2px; }
.kana-filter-button.is-active,
.kana-filter-button[aria-pressed="true"] { color: #fff; border-color: var(--navy); background: var(--navy); box-shadow: 0 6px 15px rgba(10,61,112,.2); }
.kana-filter-status { margin: 11px 2px 0; color: var(--navy-deep); font-size: .84rem; font-weight: 700; }
.model-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.model-card { display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; color: var(--ink); background: #fff; box-shadow: 0 8px 26px rgba(19,60,93,.07); text-decoration: none; }
.model-card[hidden] { display: none !important; }
.model-card img { width: 100%; height: 190px; object-fit: cover; object-position: center; }
.model-card-body { flex: 1; padding: 16px; }
.model-card small { color: var(--orange-dark); font-weight: 900; }
.model-card h3 { margin: 4px 0; color: var(--navy-deep); font-size: 1.25rem; }
.model-card p { margin: 0; color: var(--muted); font-size: .85rem; }
.kana-no-results { margin: 0 0 24px; }

.site-footer { padding: 32px 16px 96px; color: #74818d; text-align: center; font-size: .84rem; }
.mobile-cta { display: none; }
.no-results { display: none; padding: 22px; border-radius: 16px; background: #fff4e9; color: #84440f; }
.no-results.is-visible { display: block; }

@media (max-width: 860px) {
  .hero-grid, .cta-panel { grid-template-columns: 1fr; }
  .fact-grid { grid-template-columns: repeat(4,1fr); }
  .equipment-grid, .check-grid, .model-grid { grid-template-columns: repeat(2,1fr); }
  .model-card img { height: 220px; }
  .cta-actions { grid-template-columns: 1fr 1fr; min-width: 0; }
}
@media (max-width: 680px) {
  body { padding-bottom: 70px; }
  .header-inner { width: min(100% - 24px,1120px); min-height: 64px; }
  .brand-logo img { width: 126px; }
  .header-cta { min-height: 42px; padding: 8px 15px; font-size: .86rem; }
  .page-shell { width: 100%; margin-bottom: 0; box-shadow: none; }
  .breadcrumb { padding: 14px 16px; font-size: .78rem; }
  .hero { padding: 0 14px 30px; }
  .hero-figure { margin-bottom: 24px; border-radius: 0 0 18px 18px; }
  .hero-figure img { height: 300px; }
  .hero-caption { position: static; max-width: none; border-radius: 0; font-size: .7rem; }
  h1 { font-size: clamp(2rem,11vw,3rem); }
  .hero h1 { font-size: clamp(1.9rem,9.2vw,2.5rem); }
  .hero-lead { font-size: .94rem; }
  .fact-grid { grid-template-columns: 1fr 1fr; }
  .fact-card { min-height: 82px; padding: 13px; }
  .anchor-nav { top: 64px; overflow-x: auto; grid-template-columns: repeat(5,minmax(110px,1fr)); }
  .anchor-nav a { padding: 11px 7px; font-size: .78rem; }
  .content-section, .catalog-intro, .maker-section { padding: 42px 16px; scroll-margin-top: 118px; }
  .maker-heading { display: block; margin-bottom: 14px; }
  .maker-heading__help { margin-top: 5px; font-size: .82rem; }
  .kana-filter-box { margin-bottom: 22px; padding: 14px 12px 12px; border-radius: 16px; }
  .kana-filter--desktop { display: none; }
  .kana-filter--mobile { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 7px; }
  .kana-filter--mobile .kana-filter-button[data-kana=""],
  .kana-filter--mobile .kana-filter-button[data-kana="latin"],
  .kana-filter--mobile .kana-filter-button[data-kana="ra"],
  .kana-filter--mobile .kana-filter-button[data-kana="wa"] { grid-column: span 2; }
  .kana-filter-button { min-height: 46px; padding: 7px 6px; border-radius: 10px; font-size: .92rem; }
  .kana-filter-status { margin-top: 9px; font-size: .78rem; }
  .finder { grid-template-columns: 1fr; padding: 18px; }
  .filter-status { grid-column: 1; }
  .generation-summary { grid-template-columns: 64px minmax(0,1fr); gap: 12px; padding: 18px 14px; }
  .generation-number { width: 58px; border-radius: 17px; font-size: 1.3rem; }
  .generation-title h3 { font-size: 1.08rem; }
  .summary-action { grid-column: 1/-1; min-width: 0; padding: 8px 12px; }
  .generation-body { padding: 0 14px 18px; }
  .generation-meta { grid-template-columns: 1fr; }
  .equipment-grid, .check-grid, .model-grid { grid-template-columns: 1fr; }
  .model-card img { height: clamp(190px,52vw,230px); }
  .equipment-photo img { height: auto; }
  .cta-panel { padding: 26px 20px; }
  .cta-actions { grid-template-columns: 1fr; }
  .mobile-cta { position: fixed; z-index: 60; left: 10px; right: 10px; bottom: max(8px,env(safe-area-inset-bottom)); display: grid; grid-template-columns: 1fr 1.2fr; gap: 8px; padding: 8px; border-radius: 18px; background: rgba(255,255,255,.96); box-shadow: 0 7px 28px rgba(0,0,0,.19); }
  .mobile-cta a { min-height: 48px; padding: 8px 12px; font-size: .84rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}