.page-products {
  --prod-accent: var(--c-accent);
  --prod-green: var(--c-green);
  --prod-blue: var(--c-blue);
  --prod-silver: var(--c-silver);
  --prod-ink: var(--c-ink);
  --prod-cream: var(--c-bg);
  --prod-card: var(--c-card);
  --prod-muted: var(--c-muted);
  overflow-x: hidden;
  color: var(--c-ink);
  background: var(--c-bg);
}

.page-products .prod-section-head {
  margin-bottom: 24px;
}

.page-products .prod-section-head .section-marker {
  display: inline-block;
  margin-bottom: 8px;
}

.page-products .prod-section-head .section-title {
  margin: 0 0 8px;
}

.page-products .prod-section-head .section-desc {
  margin: 0;
  max-width: 70ch;
  color: var(--c-muted);
}

.page-products .prod-points {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-products .prod-points li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px dashed var(--c-silver);
}

.page-products .prod-points li::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  background: var(--c-green);
  transform: translateY(4px) rotate(45deg);
}

.page-products .prod-points li strong {
  font-family: var(--font-head);
  font-size: 0.92rem;
  white-space: nowrap;
}

.page-products .prod-points li strong::after {
  content: "：";
}

.page-products .prod-points li span {
  color: var(--c-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-products .plate--green {
  border-top: 5px solid var(--c-green);
}

.page-products .plate--blue {
  border-top: 5px solid var(--c-blue);
}

.page-products .prod-cover {
  position: relative;
  padding-top: 0;
  border-bottom: 3px solid var(--c-ink);
  background: var(--prod-cream);
}

.page-products .prod-cover::before {
  content: "";
  display: block;
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--prod-accent) 0 48px,
    var(--prod-blue) 48px 96px,
    var(--prod-green) 96px 144px,
    var(--prod-silver) 144px 192px
  );
}

.page-products .prod-cover .site-container {
  padding-top: 20px;
  padding-bottom: 32px;
}

.page-products .prod-cover .breadcrumb {
  margin-bottom: 20px;
  font-size: 0.88rem;
}

.page-products .prod-cover .breadcrumb a {
  color: var(--c-blue);
  text-decoration: none;
  border-bottom: 1px dashed var(--c-silver);
}

.page-products .prod-cover .breadcrumb a:hover {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
}

.page-products .prod-cover .breadcrumb span[aria-current] {
  color: var(--c-muted);
}

.page-products .prod-cover-layout {
  display: grid;
  gap: 24px;
}

.page-products .prod-cover-copy .tag {
  display: inline-block;
  margin-bottom: 12px;
}

.page-products .prod-cover-copy h1 {
  margin: 0 0 6px;
}

.page-products .prod-cover-copy .lede {
  font-family: var(--font-head);
  font-size: 1.25rem;
  line-height: 1.4;
  color: var(--c-accent);
  margin: 0 0 12px;
}

.page-products .prod-cover-desc {
  margin: 0;
  max-width: 70ch;
  color: var(--c-muted);
  line-height: 1.75;
}

.page-products .prod-cover-meta {
  margin: 0;
  border-top: 2px solid var(--c-ink);
  border-bottom: 2px solid var(--c-ink);
  background: var(--prod-card);
}

.page-products .prod-cover-meta div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--c-silver);
}

.page-products .prod-cover-meta div:last-child {
  border-bottom: 0;
}

.page-products .prod-cover-meta dt {
  color: var(--c-muted);
  font-size: 0.82rem;
}

.page-products .prod-cover-meta dd {
  margin: 0;
  font-family: var(--font-head);
  font-size: 0.95rem;
  text-align: right;
}

.page-products .prod-cover-stamp {
  margin-top: 18px;
  border: 2px solid var(--c-ink);
  padding: 12px;
  font-family: var(--font-head);
  font-size: 0.82rem;
  text-align: center;
  background: var(--prod-card);
  box-shadow: 4px 4px 0 var(--c-silver);
  transform: rotate(-1deg);
}

.page-products .prod-cover-media {
  margin-top: 8px;
}

.page-products .prod-toc {
  padding: 40px 0;
  background: var(--prod-card);
  border-bottom: 2px solid var(--c-ink);
}

.page-products .prod-toc-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-products .prod-toc-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  padding: 20px;
  background: var(--prod-cream);
  text-decoration: none;
  color: var(--c-ink);
  align-items: start;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-products .prod-toc-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-3px);
  box-shadow: 4px 8px 0 rgba(232, 91, 56, 0.2);
}

.page-products .prod-toc-num {
  grid-row: span 2;
  font-family: var(--font-head);
  font-size: 2.6rem;
  line-height: 1;
  color: var(--c-accent);
  padding-right: 14px;
  border-right: 2px solid var(--c-silver);
  margin-right: 2px;
}

.page-products .prod-toc-num--green {
  color: var(--c-green);
}

.page-products .prod-toc-num--blue {
  color: var(--c-blue);
}

.page-products .prod-toc-num--ink {
  color: var(--c-ink);
}

.page-products .prod-toc-name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  line-height: 1.3;
}

.page-products .prod-toc-desc {
  grid-column: 2;
  color: var(--c-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.page-products .prod-manual {
  padding: 42px 0 52px;
  background: var(--prod-cream);
}

.page-products .prod-manual-inner {
  display: grid;
  gap: 28px;
}

.page-products .prod-manual-aside {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-products .prod-manual-aside .section-desc {
  color: var(--c-muted);
  line-height: 1.7;
}

.page-products .prod-guide-locator {
  border: 2px solid var(--c-ink);
  background: var(--prod-card);
  padding: 12px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  box-shadow: 3px 3px 0 var(--c-silver);
}

.page-products .prod-guide-locator span {
  color: var(--c-muted);
}

.page-products .prod-guide-locator strong {
  font-family: var(--font-head);
  color: var(--c-blue);
  font-size: 1.2rem;
}

.page-products .prod-manual-aside .media-frame {
  margin-top: 6px;
}

.page-products .prod-manual-content {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-products .prod-steps {
  border: 2px solid var(--c-ink);
  background: var(--prod-card);
  padding: 18px;
  box-shadow: 4px 4px 0 var(--c-silver);
}

.page-products .prod-steps h3 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: var(--fz-h3);
}

.page-products .prod-steps ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: prod-steps;
}

.page-products .prod-steps li {
  position: relative;
  counter-increment: prod-steps;
  padding-left: 44px;
  margin-bottom: 14px;
  min-height: 30px;
  color: var(--c-muted);
  line-height: 1.6;
}

.page-products .prod-steps li:last-child {
  margin-bottom: 0;
}

.page-products .prod-steps li::before {
  content: counter(prod-steps, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: -2px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-family: var(--font-head);
  font-size: 0.78rem;
  background: var(--c-accent);
  color: var(--c-bg);
}

.page-products .prod-steps li span {
  display: block;
  font-family: var(--font-head);
  font-size: 0.9rem;
  color: var(--c-ink);
}

.page-products .prod-feature-list {
  display: grid;
  gap: 12px;
}

.page-products .prod-feature-item {
  border: 1px solid var(--c-silver);
  border-left: 5px solid var(--c-blue);
  background: var(--prod-card);
  padding: 14px 16px;
}

.page-products .prod-feature-item strong {
  font-family: var(--font-head);
  display: block;
  margin-bottom: 4px;
}

.page-products .prod-feature-item p {
  margin: 0;
  color: var(--c-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-products .prod-feedback {
  padding: 42px 0 52px;
  background: var(--prod-card);
  border-top: 2px solid var(--c-silver);
  border-bottom: 2px solid var(--c-silver);
}

.page-products .prod-feedback-grid {
  display: grid;
  gap: 28px;
}

.page-products .prod-feedback-copy {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-products .prod-feedback .timeline {
  border-left: 2px solid var(--c-green);
  margin: 4px 0 0;
  padding-left: 24px;
}

.page-products .prod-feedback .timeline-item {
  position: relative;
  padding-bottom: 20px;
}

.page-products .prod-feedback .timeline-item:last-child {
  padding-bottom: 0;
}

.page-products .prod-feedback .timeline-item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 4px;
  width: 12px;
  height: 12px;
  background: var(--c-green);
  border: 2px solid var(--c-bg);
  transform: rotate(45deg);
}

.page-products .prod-feedback .timeline-date {
  font-size: 0.78rem;
  font-family: var(--font-head);
  color: var(--c-green);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.page-products .prod-feedback .timeline-title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  margin: 4px 0;
}

.page-products .prod-feedback .timeline-content {
  color: var(--c-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin: 0;
}

.page-products .prod-beta {
  padding: 46px 0 54px;
  background: var(--c-ink);
  color: var(--c-bg);
}

.page-products .prod-beta .section-marker {
  color: var(--c-accent);
  border-color: var(--c-accent);
}

.page-products .prod-beta .section-title {
  color: var(--c-bg);
}

.page-products .prod-beta .section-desc {
  color: rgba(250, 245, 236, 0.82);
  line-height: 1.7;
}

.page-products .prod-beta-inner {
  display: grid;
  gap: 28px;
}

.page-products .prod-beta-copy {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-products .prod-beta-badge {
  display: grid;
  place-items: center;
  border: 3px solid var(--c-bg);
  background: var(--c-accent);
  padding: 24px 16px;
  text-align: center;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.3);
}

.page-products .prod-beta-version {
  font-family: var(--font-head);
  font-size: 2.6rem;
  line-height: 1;
  color: var(--c-bg);
}

.page-products .prod-beta-label {
  font-family: var(--font-head);
  font-size: 0.82rem;
  letter-spacing: 2px;
  color: rgba(250, 245, 236, 0.82);
  margin-top: 6px;
}

.page-products .prod-beta .plate {
  background: var(--prod-card);
}

.page-products .prod-beta .plate--blue {
  border-top-color: var(--c-blue);
}

.page-products .prod-beta .prod-points li {
  border-bottom-color: rgba(184, 188, 196, 0.35);
}

.page-products .prod-beta .prod-points li::before {
  background: var(--c-accent);
}

.page-products .prod-beta .prod-points li span {
  color: rgba(250, 245, 236, 0.8);
}

.page-products .prod-beta .btn--secondary {
  background: transparent;
  border: 2px solid var(--c-bg);
  color: var(--c-bg);
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.12);
}

.page-products .prod-beta .btn--secondary:hover {
  background: var(--c-bg);
  color: var(--c-ink);
}

.page-products .prod-beta-media {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-products .prod-beta-note {
  background: var(--prod-card);
  border: 2px solid var(--c-ink);
  padding: 14px;
  color: var(--c-ink);
  display: flex;
  gap: 10px;
  align-items: center;
}

.page-products .prod-beta-note p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
}

.page-products .prod-content {
  padding: 42px 0 48px;
  background: var(--prod-cream);
}

.page-products .prod-content-grid {
  display: grid;
  gap: 28px;
}

.page-products .prod-content-tree {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-products .prod-tree-root {
  border: 3px solid var(--c-ink);
  background: var(--c-ink);
  color: var(--c-bg);
  font-family: var(--font-head);
  font-size: 1.1rem;
  padding: 14px 18px;
  letter-spacing: 1px;
  box-shadow: 4px 4px 0 var(--c-silver);
}

.page-products .prod-branch {
  border: 2px solid var(--c-ink);
  background: var(--prod-card);
  box-shadow: 3px 3px 0 var(--c-silver);
}

.page-products .prod-branch summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 12px;
  padding: 14px 16px;
  font-family: var(--font-head);
  font-size: 1rem;
  line-height: 1.4;
}

.page-products .prod-branch summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-branch summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-body);
  font-weight: 700;
  color: var(--c-accent);
}

.page-products .prod-branch[open] summary::after {
  content: "－";
}

.page-products .prod-branch summary em {
  font-style: normal;
  font-family: var(--font-body);
  font-size: 0.76rem;
  color: var(--c-muted);
  background: var(--c-bg);
  border: 1px solid var(--c-silver);
  padding: 2px 8px;
  white-space: nowrap;
}

.page-products .prod-branch p {
  margin: 0;
  padding: 10px 16px 14px;
  color: var(--c-muted);
  font-size: 0.92rem;
  line-height: 1.65;
  border-top: 1px dashed var(--c-silver);
}

.page-products .prod-content-media {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-products .prod-content-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.page-products .prod-stat {
  border: 2px solid var(--c-ink);
  background: var(--prod-card);
  padding: 12px 8px;
  text-align: center;
}

.page-products .prod-stat strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1.35rem;
  line-height: 1.2;
}

.page-products .prod-stat span {
  display: block;
  font-size: 0.72rem;
  color: var(--c-muted);
  line-height: 1.4;
  margin-top: 4px;
}

.page-products .prod-content-links {
  margin-top: 28px;
  padding: 18px;
  border: 2px solid var(--c-ink);
  background: var(--c-blue);
  color: var(--c-bg);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  box-shadow: 5px 5px 0 var(--c-silver);
}

.page-products .prod-content-links p {
  flex: 1 1 100%;
  margin: 0;
  font-family: var(--font-head);
  font-size: 1rem;
}

.page-products .prod-content-links .btn--ghost {
  background: transparent;
  border: 2px solid var(--c-bg);
  color: var(--c-bg);
  box-shadow: none;
}

.page-products .prod-content-links .btn--ghost:hover {
  background: var(--c-bg);
  color: var(--c-blue);
}

.page-products .prod-support {
  background: var(--c-accent);
  color: var(--c-bg);
  padding: 42px 0;
}

.page-products .prod-support-inner {
  display: grid;
  gap: 20px;
  text-align: center;
  align-items: center;
}

.page-products .prod-support .section-title {
  color: var(--c-bg);
  margin: 0 0 8px;
}

.page-products .prod-support .section-desc {
  color: rgba(250, 245, 236, 0.88);
  margin: 0 auto;
  max-width: 60ch;
  line-height: 1.7;
}

.page-products .prod-support-btn {
  background: var(--c-ink);
  border: 2px solid var(--c-ink);
  color: var(--c-bg);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.25);
  justify-self: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-products .prod-support-btn:hover {
  transform: translateY(-2px);
  box-shadow: 4px 6px 0 rgba(0, 0, 0, 0.3);
}

@media (min-width: 720px) {
  .page-products .prod-cover-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
  }

  .page-products .prod-cover-media {
    grid-column: 1 / -1;
  }

  .page-products .prod-toc-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .prod-feedback-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 32px;
  }

  .page-products .prod-content-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 32px;
  }

  .page-products .prod-content-links p {
    flex: 1 1 auto;
  }
}

@media (min-width: 1024px) {
  .page-products .prod-manual-inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
  }

  .page-products .prod-manual-aside {
    position: sticky;
    top: 20px;
  }

  .page-products .prod-beta-inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 40px;
  }

  .page-products .prod-toc-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .prod-support-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    text-align: left;
  }

  .page-products .prod-support .section-desc {
    margin: 0;
  }

  .page-products .prod-support-btn {
    justify-self: end;
  }
}