:root {
  --ink: #17221c;
  --muted: #637067;
  --paper: #f5f2e9;
  --surface: #fffdf7;
  --forest: #153d2d;
  --lime: #d7f06a;
  --rust: #b74727;
  --line: #d8d9cf;
  --radius: 3px;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.75; }
a { color: inherit; text-underline-offset: .22em; }
button, input, select, textarea { font: inherit; }
.shell { width: min(1120px, calc(100% - 36px)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 20; background: white; padding: 10px; }
.skip-link:focus { top: 12px; }
.site-header { border-bottom: 1px solid rgba(23,34,28,.18); background: rgba(245,242,233,.96); }
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; text-decoration: none; letter-spacing: .04em; }
.brand-mark { display: grid; place-items: center; width: 32px; height: 32px; color: var(--lime); background: var(--forest); border-radius: 50%; font-family: Georgia, serif; }
nav { display: flex; align-items: center; gap: 22px; font-size: .82rem; font-weight: 700; }
nav a { text-decoration: none; }
.hero { min-height: 610px; padding-block: 90px 74px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; position: relative; }
.hero::after { content: "四\Aつ\Aの\A視\A点"; white-space: pre; position: absolute; right: 5%; top: 75px; color: transparent; -webkit-text-stroke: 1px rgba(21,61,45,.18); font: 900 clamp(3.5rem, 9vw, 8rem)/.82 Georgia, serif; transform: rotate(4deg); pointer-events: none; }
.eyebrow { margin: 0 0 14px; color: var(--rust); font: 800 .72rem/1.2 ui-monospace, SFMono-Regular, monospace; letter-spacing: .16em; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.28; letter-spacing: -.035em; }
.hero h1 { margin: 0 0 26px; font-size: clamp(3rem, 8vw, 7.5rem); font-weight: 800; line-height: 1.03; letter-spacing: -.075em; z-index: 1; }
.hero h1 em { color: var(--forest); font-style: normal; }
.hero-copy { max-width: 600px; margin-bottom: 32px; font-size: clamp(1rem, 2vw, 1.24rem); color: #49564e; }
.button { display: inline-flex; gap: 24px; align-items: center; justify-content: space-between; min-height: 48px; padding: 11px 18px; border: 1px solid var(--forest); border-radius: var(--radius); background: var(--forest); color: white; text-decoration: none; font-weight: 800; cursor: pointer; }
.button:hover { background: #0b2e20; }
.button.full { display: flex; width: 100%; }
.section { padding-block: 74px; }
.section-heading { margin-bottom: 30px; }
.section-heading h2, .page-hero h1, .detail-section h2, .report-section h2 { font-size: clamp(1.8rem, 4vw, 3.1rem); margin-bottom: 0; }
.section-heading.row { display: flex; align-items: end; justify-content: space-between; gap: 18px; }
.vertical-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.vertical-tile { min-height: 270px; padding: 28px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); text-decoration: none; position: relative; background: transparent; transition: background-color .15s ease, color .15s ease; }
.vertical-tile:hover { background: var(--forest); color: white; }
.tile-number, .tile-label { font: 700 .7rem ui-monospace, SFMono-Regular, monospace; letter-spacing: .12em; }
.tile-label { margin-left: 14px; color: var(--rust); }
.vertical-tile h3 { margin: 52px 0 10px; font-size: 1.55rem; }
.vertical-tile p { max-width: 430px; margin-bottom: 0; font-size: .88rem; color: var(--muted); }
.vertical-tile:hover p { color: #dce4df; }
.tile-arrow { position: absolute; right: 24px; top: 21px; font-size: 1.6rem; }
.latest-section { background: var(--surface); border-block: 1px solid var(--line); }
.property-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.property-card { min-width: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.property-card > a { display: block; min-height: 320px; padding: 23px; text-decoration: none; }
.property-card:hover { border-color: var(--forest); box-shadow: 4px 4px 0 var(--lime); }
.card-top { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: .74rem; }
.status { display: inline-flex; align-items: center; gap: 7px; font-size: .72rem; font-weight: 800; }
.status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #7c877e; }
.status-active::before { background: #2b8b54; box-shadow: 0 0 0 3px #dcecdf; }
.status-ended_confirmed::before { background: var(--ink); }
.status-source_unavailable::before, .status-stale::before { background: #d4911d; }
.price { margin: 34px 0 3px; font: 800 clamp(1.7rem, 4vw, 2.5rem)/1.15 Georgia, "Yu Mincho", serif; letter-spacing: -.03em; }
.location { margin-bottom: 7px; color: var(--rust); font-size: .78rem; font-weight: 800; letter-spacing: .07em; }
.property-card h3 { margin-bottom: 18px; font-size: 1.18rem; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badges span, .badges a { padding: 4px 8px; border: 1px solid #bdc7bf; border-radius: 99px; background: #f4f6ef; font-size: .67rem; font-weight: 800; text-decoration: none; }
.details-link { display: block; margin-top: 26px; font-size: .78rem; font-weight: 800; }
.empty-state { padding: 42px; border: 1px dashed #a9b1aa; text-align: center; color: var(--muted); }
.principles { display: grid; grid-template-columns: 1fr 2fr; gap: 36px; }
.principles h2 { font-size: clamp(2.1rem, 6vw, 4.6rem); }
.principles > div p { max-width: 680px; }
.page-hero { padding-block: 80px 55px; }
.page-hero h1 { max-width: 900px; margin-bottom: 20px; }
.lede { max-width: 720px; color: var(--muted); font-size: 1.12rem; }
.narrow-top { padding-top: 20px; }
.caution, .notice { margin-bottom: 50px; padding: 19px 22px; border-left: 5px solid var(--lime); background: var(--forest); color: white; }
.caution p, .notice p { margin: 4px 0 0; color: #e6ede8; }
.notice.warning { border-left-color: #edaa2e; }
.result-heading { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px solid var(--ink); margin-bottom: 22px; }
.result-heading h2 { font-size: 1.25rem; }
.property-hero { padding-block: 72px 48px; }
.property-kicker { display: flex; gap: 24px; color: var(--muted); font-size: .8rem; margin-bottom: 35px; }
.property-hero h1 { max-width: 850px; font-size: clamp(2.1rem, 6vw, 5.3rem); margin-bottom: 28px; }
.detail-price { font: 800 clamp(2rem, 5vw, 4rem)/1 Georgia, "Yu Mincho", serif; }
.badges.large a { padding: 6px 12px; }
.detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 70px; padding-block: 45px 90px; align-items: start; }
.detail-section { padding-block: 32px; border-top: 1px solid var(--line); }
.detail-section h2 { margin-bottom: 22px; }
.summary { font-size: 1.08rem; }
.unknown-list { display: grid; gap: 8px; padding-left: 1.3em; }
.evidence-list { display: grid; gap: 12px; }
.evidence-list > div { padding: 18px; background: var(--surface); border: 1px solid var(--line); }
.evidence-list p { margin: 8px 0; }
.evidence-list span { color: var(--muted); font-size: .72rem; }
.timeline { list-style: none; padding: 0; }
.timeline li { display: grid; grid-template-columns: 115px 1fr; gap: 2px 18px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.timeline li span { grid-row: span 2; color: var(--muted); font-size: .75rem; }
.timeline small { color: var(--muted); }
.source-panel { position: sticky; top: 20px; padding: 24px; background: var(--surface); border: 1px solid var(--line); }
.source-panel h2 { font-size: 1.35rem; }
.source-panel dl > div { display: flex; justify-content: space-between; gap: 18px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: .78rem; }
.source-panel dt { color: var(--muted); }
.source-note { margin: 15px 0 0; color: var(--muted); font-size: .7rem; }
.report-section { padding-block: 70px; background: #e6e4da; }
.report-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.report-form, .filters { display: grid; gap: 15px; }
.report-form label, .filters label { display: grid; gap: 5px; font-size: .78rem; font-weight: 800; }
input, select, textarea { width: 100%; padding: 11px 12px; border: 1px solid #98a198; border-radius: var(--radius); background: white; color: var(--ink); }
textarea { min-height: 130px; resize: vertical; }
.honeypot { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.search-layout { display: grid; grid-template-columns: 260px 1fr; gap: 50px; padding-bottom: 90px; align-items: start; }
.filters { padding: 22px; background: var(--surface); border: 1px solid var(--line); }
.filters h2 { font-size: 1.2rem; }
.filters fieldset { border: 0; padding: 8px 0; }
.filters legend { font-size: .78rem; font-weight: 800; margin-bottom: 8px; }
.filters .check { display: flex; grid-template-columns: auto 1fr; align-items: center; gap: 8px; font-weight: 500; }
.filters .check input { width: auto; }
.prose { max-width: 800px; }
.prose h2 { margin-top: 46px; font-size: 1.55rem; }
footer { padding-block: 50px; background: var(--forest); color: white; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.footer-grid p { color: #b9c8c0; font-size: .8rem; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; align-content: start; font-size: .76rem; }
@media (max-width: 760px) {
  .shell { width: min(100% - 28px, 1120px); }
  .header-inner { min-height: 62px; }
  nav a:nth-child(2) { display: none; }
  .hero { min-height: 520px; padding-block: 65px; }
  .hero::after { opacity: .45; right: 0; }
  .hero h1 { font-size: clamp(2.9rem, 14vw, 5.2rem); }
  .vertical-grid, .property-grid, .principles, .detail-layout, .report-inner, .search-layout, .footer-grid { grid-template-columns: 1fr; }
  .vertical-tile { min-height: 225px; }
  .property-card > a { min-height: 290px; }
  .section { padding-block: 55px; }
  .section-heading.row { align-items: start; }
  .principles { gap: 8px; }
  .detail-layout { gap: 20px; }
  .source-panel { position: static; order: -1; }
  .report-inner { gap: 30px; }
  .timeline li { grid-template-columns: 90px 1fr; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }