/* ============================================================
   共通スタイル / Financial Tokenization Site
   https://service.paycierge.com/tokenization/common.css
   ============================================================ */

:root {
  --bg: #f6f8fb;
  --panel: #ffffff;
  --panel-soft: #f0f4fa;
  --ink: #182033;
  --muted: #697386;
  --line: #dce3ee;
  --primary: #005bac;
  --primary-dark: #003f7a;
  --accent: #00a3c7;
  --accent-soft: #e8f8fb;
  --green-soft: #eefbf3;
  --orange-soft: #fff6e4;
  --purple-soft: #f4eefe;
  --shadow: 0 18px 45px rgba(23,38,66,.12);
  --radius-xl: 28px;
  --radius-lg: 18px;
  --max: 1180px;
  --article: 780px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.85;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }

/* Container */
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---- Header / Nav ---- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo-wrap { display: inline-flex; align-items: center; gap: 12px; }
.logo-img { width: 120px; height: auto; display: block; }
.brand-title { display: inline-flex; flex-direction: column; line-height: 1.25; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: var(--muted);
}
.nav-links a:hover { color: var(--primary); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 11px 16px;
  font-weight: 800;
  font-size: 14px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 12px 30px rgba(0,91,172,.25);
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-secondary { color: var(--primary); background: #fff; border-color: var(--line); }
.btn-secondary:hover { border-color: var(--primary); }

/* ---- Hero ---- */
.hero, .article-hero {
  background:
    radial-gradient(circle at 12% 20%, rgba(0,163,199,.18), transparent 26%),
    radial-gradient(circle at 92% 18%, rgba(0,91,172,.16), transparent 30%),
    linear-gradient(180deg, #fff 0%, #edf3fb 100%);
  border-bottom: 1px solid var(--line);
}
.hero { padding: 80px 0 68px; }
.article-hero { padding: 58px 0 42px; }

.eyebrow {
  display: inline-flex;
  color: var(--primary);
  background: var(--accent-soft);
  border: 1px solid rgba(0,163,199,.24);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .05em;
}
.hero h1 {
  margin: 22px 0 18px;
  max-width: 1080px;
  font-size: clamp(38px, 5.2vw, 64px);
  line-height: 1.14;
  letter-spacing: -.055em;
}
.article-hero h1 {
  margin: 22px 0 18px;
  max-width: 1080px;
  font-size: clamp(38px, 5.2vw, 64px);
  line-height: 1.14;
  letter-spacing: -.055em;
}
.hero h1 .nowrap { white-space: nowrap; color: var(--primary); }
.lead, .article-lead { font-size: 18px; color: #4d596d; max-width: 860px; margin: 0 0 28px; }
.catch { margin: 0 0 10px; color: var(--primary); font-size: 18px; font-weight: 900; }
.article-title { max-width: 950px; margin: 0 0 18px; font-size: clamp(32px, 5vw, 52px); line-height: 1.22; letter-spacing: -.04em; }
.article-labels { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.article-meta2 { display: flex; gap: 16px; flex-wrap: wrap; color: var(--muted); font-size: 13px; font-weight: 700; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 20px;
}
.breadcrumbs a { color: var(--primary); font-weight: 800; }

/* ---- Sections ---- */
.section { padding: 76px 0; }
.section-white { background: #fff; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-bottom: 28px; }
.section-kicker { color: var(--primary); font-size: 13px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 8px; }
h2.page-title, .section h2 { margin: 0; font-size: clamp(28px, 4vw, 42px); line-height: 1.25; letter-spacing: -.035em; }
.section-desc { margin: 0; color: var(--muted); max-width: 560px; }

/* ---- Cards ---- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 10px 24px rgba(23,38,66,.06);
  transition: .18s ease;
}
.card:hover { transform: translateY(-2px); border-color: rgba(0,91,172,.36); box-shadow: var(--shadow); }
.article-card { min-height: 290px; display: flex; flex-direction: column; justify-content: space-between; }
.card-thumb { margin: -4px -4px 16px; border-radius: 16px; overflow: hidden; background: var(--accent-soft); border: 1px solid rgba(0,91,172,.08); }
.card-thumb img { width: 100%; height: 150px; object-fit: cover; display: block; }
.card h3 { margin: 0 0 10px; color: var(--ink); font-size: 20px; line-height: 1.45; }
.card p { margin: 0 0 16px; color: var(--muted); font-size: 14px; }

.category, .label {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 900;
  color: var(--primary);
  background: var(--accent-soft);
  margin-bottom: 14px;
}
.category.tech, .label.tech { background: #eef2ff; color: #3046a0; }
.category.case, .label.case { background: var(--green-soft); color: #1e7d48; }
.category.global, .label.global { background: var(--orange-soft); color: #9a6200; }
.category.report, .label.report { background: var(--purple-soft); color: #6b3bad; }

.article-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 18px; color: var(--muted); font-size: 13px; font-weight: 700; }

/* ---- Filter ---- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.filter-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--primary);
  border-radius: 999px;
  padding: 9px 14px;
  font-weight: 900;
  cursor: pointer;
}
.filter-btn.active, .filter-btn:hover { color: #fff; background: var(--primary); }

/* ---- Grids ---- */
.column-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.quick-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.quick-card {
  display: block;
  min-height: 150px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: #fff;
  box-shadow: 0 10px 24px rgba(23,38,66,.06);
}
.quick-card:hover { transform: translateY(-2px); border-color: rgba(0,91,172,.36); box-shadow: var(--shadow); transition: .18s ease; }
.quick-card strong { display: block; margin-bottom: 10px; font-size: 20px; line-height: 1.35; }
.quick-card p { margin: 0; color: var(--muted); font-size: 14px; }

.download-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.download-card { display: grid; grid-template-columns: 86px 1fr; gap: 20px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-xl); padding: 24px; }
.download-icon { width: 86px; height: 104px; display: grid; place-items: center; border-radius: 14px; background: linear-gradient(180deg, var(--primary), var(--accent)); color: #fff; font-weight: 900; font-size: 18px; }

.subsection-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  margin-top: 34px;
  padding: 26px 28px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--primary);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 8px 20px rgba(23,38,66,.06);
}
.subsection-card h3 { margin: 0 0 8px; font-size: 22px; line-height: 1.35; }
.subsection-card p { margin: 0; color: var(--muted); }

/* ---- Article layout (2-column with sidebar) ---- */
.layout {
  display: grid;
  grid-template-columns: minmax(0, var(--article)) 300px;
  gap: 48px;
  align-items: start;
  padding: 50px 0 80px;
}
.article-body {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 42px;
  box-shadow: 0 12px 30px rgba(23,38,66,.06);
}
.article-body h2 { margin: 46px 0 18px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 30px; line-height: 1.35; }
.article-body h3 { margin: 30px 0 12px; font-size: 22px; line-height: 1.45; color: var(--ink); }
.article-body p { margin: 0 0 18px; color: #2d3748; font-size: 16px; }
.article-body ul, .article-body ol { margin: 0 0 22px; padding-left: 1.4em; }
.article-body li { margin: 6px 0; color: #2d3748; }

.summary-box, .point-box { border-radius: var(--radius-lg); padding: 22px; margin: 28px 0; }
.summary-box { background: var(--accent-soft); border: 1px solid rgba(0,163,199,.25); }
.point-box { background: var(--panel-soft); border: 1px solid var(--line); }
.summary-box h2, .point-box h3 { margin: 0 0 10px; padding: 0; border: none; font-size: 20px; }

.figure-box { margin: 30px 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; }
.figure-visual { padding: 24px; background: linear-gradient(180deg, #fff, #f9fbff); }
.caption { padding: 12px 16px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }

/* ---- Sidebar ---- */
.side { position: sticky; top: 96px; display: grid; gap: 16px; }
.side-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 20px; box-shadow: 0 10px 24px rgba(23,38,66,.05); }
.toc, .related-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; color: var(--muted); font-size: 14px; }
.download-side { color: #fff; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); }
.download-side p { color: rgba(255,255,255,.78); margin: 0 0 14px; font-size: 14px; }
.download-side .btn { color: var(--primary); background: #fff; }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; margin: 28px 0; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.table-wrap table { width: 100%; border-collapse: collapse; background: #fff; min-width: 640px; }
.table-wrap th, .table-wrap td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 14px; }
.table-wrap th { background: var(--panel-soft); font-weight: 900; color: var(--ink); }
.table-wrap tr:last-child td { border-bottom: none; }

/* ---- Diagrams & Flow ---- */
.diagram-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.diagram-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.diagram-card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 16px; box-shadow: 0 8px 18px rgba(23,38,66,.04); }
.diagram-card h4 { margin: 0 0 8px; font-size: 16px; }
.diagram-card p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.65; }
.diagram-note { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 14px; }
.diagram-note div { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 14px; font-size: 13px; }

.flow-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; align-items: center; }
.flow-box { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 14px; text-align: center; font-weight: 800; font-size: 14px; min-height: 72px; display: grid; place-items: center; }
.flow-box.primary { background: linear-gradient(180deg, #eaf5ff, #fff); color: var(--primary); }
.flow-box.green { background: linear-gradient(180deg, #effcf4, #fff); color: #1e7d48; }
.flow-box.orange { background: linear-gradient(180deg, #fff8ea, #fff); color: #9a6200; }
.arrow { text-align: center; color: var(--primary); font-weight: 900; font-size: 22px; }

.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.timeline .node { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 16px; }
.timeline .node strong { color: var(--primary); display: block; margin-bottom: 8px; }
.checklist { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.check { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.smallnote { color: var(--muted); font-size: 12px; }

/* ---- Author box ---- */
.author-box { display: grid; grid-template-columns: 76px 1fr; gap: 16px; align-items: center; margin-top: 40px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel-soft); }
.author-avatar { width: 76px; height: 76px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--primary), var(--accent)); font-weight: 900; }
.related-links { display: grid; gap: 10px; margin-top: 12px; }
.related-links a { display: block; color: var(--primary); font-weight: 800; }

/* ---- Page visuals (float-wrapped images) ---- */
.page-visual-wrap {
  float: right;
  width: 280px;
  max-width: 280px;
  margin: 8px 0 20px 28px;
}
.page-visual-card { border-radius: 16px; overflow: hidden; border: 1px solid rgba(0,91,172,.10); background: #fff; box-shadow: 0 8px 20px rgba(14,30,60,.06); }
.page-visual-card img { display: block; width: 100%; height: auto; }
.page-visual-caption { display: none; }
.article-cover {
  float: right;
  width: 280px;
  max-width: 280px;
  margin: 8px 0 20px 28px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(0,91,172,.10);
  background: #fff;
  box-shadow: 0 8px 20px rgba(14,30,60,.06);
}
.article-cover img { display: block; width: 100%; height: auto; }
.article-cover-caption { display: none; }
.site-footer, footer, .footer { clear: both; }

/* ---- Footer ---- */
.site-footer {
  padding: 42px 0 30px;
  background: #07182d;
  color: rgba(255,255,255,.72);
  font-size: 13px;
  border-top: none;
}
.site-footer .footer-inner { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; color: rgba(255,255,255,.72); }
.site-footer .footer-brand-area { display: block; width: 100%; }
.site-footer .footer-brand { display: block; width: auto; height: auto; background: transparent; border: none; border-radius: 0; }
.site-footer .logo-wrap { display: inline-flex; align-items: center; }
.site-footer .logo-img { width: 120px; height: auto; display: block; }
.site-footer .footer-brand-sub { margin-top: 12px; color: rgba(255,255,255,.72); font-size: 13px; }
.site-footer .footer-links-row { margin-top: 28px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.16); }
.site-footer .footer-links-row ul { display: flex; flex-wrap: wrap; justify-content: flex-start; gap: 12px 22px; margin: 0; padding: 0; list-style: none; }
.site-footer .footer-links-row a { color: rgba(255,255,255,.78); font-size: 13px; }
.site-footer .footer-links-row a:hover { color: #fff; text-decoration: underline; }
.site-footer .footer-bottom { margin-top: 22px; color: rgba(255,255,255,.72); font-size: 13px; }

/* ---- Responsive ---- */
@media (max-width: 980px) {
  .quick-links, .cards, .column-grid, .download-grid, .layout,
  .diagram-grid-3, .diagram-grid-4, .checklist, .timeline, .diagram-note {
    grid-template-columns: 1fr;
  }
  .side { position: static; }
  .flow-row { grid-template-columns: 1fr; }
  .arrow { transform: rotate(90deg); }
  .section-head { display: block; }
  .subsection-card { display: block; }
}
@media (max-width: 900px) {
  .page-visual-wrap, .article-cover {
    float: none;
    width: 100%;
    max-width: 420px;
    margin: 18px auto;
  }
}
@media (max-width: 720px) {
  .nav { padding: 14px 0; }
  .nav-links { display: none; }
  .hero h1 .nowrap { white-space: normal; }
  .download-card { grid-template-columns: 1fr; }
}