:root {
  --bg: #f5efe6;
  --bg-2: #efe4d6;
  --paper: rgba(255, 250, 243, 0.92);
  --paper-strong: #fffaf3;
  --ink: #2c241d;
  --muted: #695749;
  --line: rgba(112, 80, 52, 0.16);
  --accent: #a85f2b;
  --accent-2: #77411d;
  --accent-soft: #f3ddc7;
  --shadow: 0 20px 60px rgba(70, 43, 18, 0.09);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Avenir Next", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  line-height: 1.8;
  background:
    radial-gradient(circle at top left, rgba(168, 95, 43, 0.12), transparent 28%),
    radial-gradient(circle at bottom right, rgba(119, 65, 29, 0.08), transparent 24%),
    linear-gradient(180deg, #fbf7f0 0%, var(--bg) 38%, var(--bg-2) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(120, 88, 55, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 88, 55, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
}

a {
  color: var(--accent-2);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.narrow {
  width: min(860px, calc(100% - 32px));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(251, 247, 240, 0.84);
  border-bottom: 1px solid rgba(112, 80, 52, 0.08);
}

.site-header__inner,
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
}

.site-brand {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", Georgia, serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.96rem;
}

.page-main,
.page-footer {
  padding: 28px 0 56px;
}

.hero-shell {
  padding: 62px 0 30px;
}

.hero-card,
.panel,
.article-card,
.card,
.step,
.notice,
.compare-box {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: clamp(28px, 5vw, 58px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.88), transparent 32%),
    linear-gradient(135deg, #fff0d8 0%, #f5dfca 48%, #ead9cf 100%);
}

.eyebrow,
.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: rgba(255, 251, 245, 0.82);
  border: 1px solid rgba(119, 65, 29, 0.1);
}

h1,
h2,
h3 {
  line-height: 1.28;
  margin: 0 0 16px;
}

h1,
.display {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", Georgia, serif;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 4rem);
  max-width: 11ch;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

h3 {
  font-size: 1.18rem;
}

.lead,
.section-copy,
.lede {
  max-width: 64ch;
  color: var(--muted);
}

.hero-actions,
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.16s ease, background 0.16s ease;
}

.button:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.button-primary {
  background: var(--accent);
  color: #fff;
}

.button-secondary {
  background: rgba(255, 251, 245, 0.62);
  border-color: rgba(119, 65, 29, 0.14);
  color: var(--accent-2);
}

.signal-grid,
.grid {
  display: grid;
  gap: 16px;
}

.signal-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.signal,
.card {
  border-radius: var(--radius-lg);
  padding: 18px 20px;
}

.signal {
  background: rgba(255, 251, 245, 0.74);
  border: 1px solid rgba(119, 65, 29, 0.08);
}

.section {
  padding: 18px 0 26px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 20px;
}

.panel {
  border-radius: var(--radius-xl);
  padding: 28px;
}

.grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.step-list,
.articles {
  display: grid;
  gap: 14px;
}

.step {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 14px;
  padding: 18px;
  border-radius: var(--radius-lg);
}

.step-num {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-weight: 800;
  background: var(--accent-soft);
  color: var(--accent-2);
}

.article-card {
  border-radius: var(--radius-lg);
  padding: 22px;
}

.article-card + .article-card {
  margin-top: 18px;
}

.article-card h1 {
  max-width: none;
  font-size: clamp(2rem, 4.2vw, 3.2rem);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.toc,
.note,
.compare-box,
.notice {
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.toc,
.compare-box {
  background: rgba(255, 244, 230, 0.82);
}

.notice,
.note {
  background: rgba(255, 242, 231, 0.88);
  border-left: 4px solid var(--accent);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin: 20px 0;
}

.product-card {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 250, 244, 0.9);
  border: 1px solid rgba(112, 80, 52, 0.12);
  box-shadow: 0 14px 40px rgba(70, 43, 18, 0.05);
}

.product-card h3 {
  margin-bottom: 10px;
}

.product-badge {
  display: inline-flex;
  align-items: center;
  margin-bottom: 10px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(243, 221, 199, 0.78);
  color: var(--accent-2);
  font-size: 0.8rem;
  font-weight: 700;
}

.product-points {
  margin: 12px 0;
  padding-left: 18px;
}

.product-points li {
  margin-bottom: 6px;
}

.review-cell {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 249, 241, 0.82);
  border: 1px solid rgba(112, 80, 52, 0.1);
}

.review-cell strong {
  display: block;
  margin-bottom: 6px;
}

.cta-box {
  margin-top: 24px;
  padding: 22px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(243, 221, 199, 0.95), rgba(255, 248, 239, 0.95));
  border: 1px solid rgba(168, 95, 43, 0.18);
}

.candidate-stack {
  display: grid;
  gap: 16px;
  margin: 24px 0 28px;
}

.candidate-card {
  position: relative;
  padding: 22px 22px 20px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 252, 246, 0.95), rgba(252, 244, 232, 0.92));
  border: 1px solid rgba(168, 95, 43, 0.18);
  box-shadow: 0 18px 44px rgba(70, 43, 18, 0.07);
}

.candidate-card[data-rank]::before {
  content: attr(data-rank);
  position: absolute;
  top: -14px;
  left: 22px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  box-shadow: 0 6px 16px rgba(168, 95, 43, 0.35);
}

.candidate-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  margin: 6px 0 8px;
}

.candidate-head h3 {
  margin: 0;
  font-size: 1.18rem;
}

.candidate-price {
  font-size: 0.92rem;
  color: var(--accent-2);
  font-weight: 700;
}

.candidate-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
}

.candidate-tags li {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(243, 221, 199, 0.65);
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 700;
}

.candidate-summary {
  margin: 0 0 10px;
  color: var(--ink);
}

.candidate-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin: 12px 0 14px;
}

.candidate-meta div {
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 250, 244, 0.85);
  border: 1px solid rgba(112, 80, 52, 0.1);
  font-size: 0.92rem;
}

.candidate-meta strong {
  display: block;
  margin-bottom: 4px;
  color: var(--accent-2);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.candidate-skip {
  margin: 8px 0 14px;
  padding: 10px 14px;
  border-left: 3px solid rgba(168, 95, 43, 0.45);
  background: rgba(255, 245, 233, 0.6);
  border-radius: 0 12px 12px 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.candidate-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

.candidate-disclosure {
  margin: -4px 0 18px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(255, 244, 230, 0.7);
  font-size: 0.86rem;
  color: var(--muted);
}

.toc-mini {
  margin: 18px 0 22px;
  padding: 14px 18px;
  border-radius: 16px;
  background: rgba(255, 250, 244, 0.85);
  border: 1px solid rgba(112, 80, 52, 0.1);
}

.toc-mini strong {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-2);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.toc-mini ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 4px;
}

.prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 26px 0 8px;
}

.prev-next a {
  display: block;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 250, 244, 0.85);
  border: 1px solid rgba(112, 80, 52, 0.1);
}

.prev-next a span {
  display: block;
  font-size: 0.78rem;
  color: var(--accent-2);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.prev-next a.next {
  text-align: right;
}

@media (max-width: 600px) {
  .prev-next {
    grid-template-columns: 1fr;
  }
}

.changelog {
  display: grid;
  gap: 12px;
  margin: 16px 0 8px;
}

.changelog-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 250, 244, 0.85);
  border: 1px solid rgba(112, 80, 52, 0.1);
}

.changelog-row time {
  color: var(--accent-2);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
}

.changelog-row strong {
  display: block;
  margin-bottom: 4px;
}

.changelog-row p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 600px) {
  .changelog-row {
    grid-template-columns: 1fr;
  }
}

.back-to-top {
  position: fixed;
  bottom: 22px;
  right: 22px;
  z-index: 30;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 14px 30px rgba(168, 95, 43, 0.32);
}

.back-to-top:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.category-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 22px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 244, 230, 0.7);
  border: 1px solid rgba(112, 80, 52, 0.1);
}

.category-jump a {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 250, 244, 0.95);
  border: 1px solid rgba(112, 80, 52, 0.1);
  color: var(--accent-2);
  font-size: 0.86rem;
  font-weight: 700;
}

.category-jump a:hover {
  text-decoration: none;
  background: rgba(243, 221, 199, 0.7);
}

.category-jump strong {
  align-self: center;
  font-size: 0.86rem;
  color: var(--muted);
  margin-right: 6px;
}

.faq-list {
  display: grid;
  gap: 10px;
  margin: 12px 0 8px;
}

.faq-list details {
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255, 250, 244, 0.85);
  border: 1px solid rgba(112, 80, 52, 0.1);
}

.faq-list details[open] {
  background: rgba(255, 244, 230, 0.85);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  color: var(--accent-2);
  font-weight: 800;
  font-size: 1.3rem;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list .faq-answer {
  margin-top: 10px;
  color: var(--ink);
  line-height: 1.75;
}

.cta-box h3 {
  margin-bottom: 10px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.related-links {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.related-links a {
  display: block;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 250, 244, 0.85);
  border: 1px solid rgba(112, 80, 52, 0.1);
}

.related-links a:hover {
  text-decoration: none;
  background: rgba(243, 221, 199, 0.55);
}

.kicker-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 10px 0 20px;
  padding: 0;
  list-style: none;
}

.kicker-list li {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 249, 241, 0.85);
  border: 1px solid rgba(112, 80, 52, 0.1);
  color: var(--accent-2);
  font-size: 0.92rem;
}

.compare-table-wrap {
  overflow-x: auto;
  margin: 20px 0;
}

.legal {
  font-size: 0.94rem;
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: rgba(255, 250, 244, 0.9);
  overflow: hidden;
  border-radius: 16px;
}

th,
td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border: 1px solid rgba(112, 80, 52, 0.12);
}

th {
  background: rgba(243, 221, 199, 0.8);
}

ul {
  padding-left: 20px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.muted {
  color: var(--muted);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 0.94rem;
}

.breadcrumbs span {
  opacity: 0.6;
}

.breadcrumbs a {
  color: var(--muted);
}

.hero-statline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 24px;
}

.hero-statline div {
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 251, 245, 0.76);
  border: 1px solid rgba(112, 80, 52, 0.1);
  font-size: 0.93rem;
}

.article-intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 18px 0 22px;
}

.article-intro-card {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 248, 239, 0.88);
  border: 1px solid rgba(112, 80, 52, 0.08);
}

.article-intro-card strong {
  display: block;
  margin-bottom: 6px;
}

@media (max-width: 760px) {
  .site-header__inner,
  .site-footer,
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .step {
    grid-template-columns: 1fr;
  }

  .step-num {
    width: 48px;
    height: 48px;
  }
}