.tabs {
  min-width: 0;
}

.tab-list {
  display: flex;
  max-width: 100%;
  gap: 8px;
  margin: 0 0 28px;
  padding: 6px;
  overflow-x: auto;
  border-radius: var(--radius-pill);
  background: var(--color-panel-strong);
  scrollbar-width: thin;
}

.tab-list [role="tab"] {
  min-width: max-content;
  min-height: 44px;
  padding: 9px 20px;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-ink-soft);
}

.tab-list [role="tab"]:hover {
  color: var(--color-brand-deep);
}

.tab-list [role="tab"][aria-selected="true"] {
  background: var(--color-brand);
  color: var(--color-white-text);
  box-shadow: var(--shadow-far);
}

[role="tabpanel"][hidden] {
  display: none;
}

.jump-toc {
  position: sticky;
  top: 12px;
  z-index: 20;
  display: flex;
  max-width: 100%;
  gap: 8px;
  margin-bottom: 40px;
  padding: 8px;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  box-shadow: var(--shadow-far);
}

.jump-toc a {
  min-width: max-content;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  color: var(--color-ink-soft);
  font-size: 14px;
  text-decoration: none;
}

.jump-toc a:hover {
  background: var(--color-green-soft);
  color: var(--color-brand-deep);
}

.faq-list {
  border-top: 1px solid var(--color-line);
}

.faq-item {
  border-bottom: 1px solid var(--color-line);
}

.faq-item summary {
  position: relative;
  padding: 22px 46px 22px 0;
  color: var(--color-ink);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

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

.faq-item summary::after {
  position: absolute;
  top: 22px;
  right: 8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-green-soft);
  color: var(--color-brand-deep);
  content: "+";
  line-height: 24px;
  text-align: center;
}

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

.faq-answer {
  max-width: 76ch;
  padding: 0 46px 22px 0;
  color: var(--color-ink-soft);
}

.term-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.term-card {
  min-width: 0;
  padding: 24px;
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
}

.term-card__name {
  margin-bottom: 8px;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 400;
}

.term-card p {
  margin-bottom: 0;
  color: var(--color-ink-soft);
}

.client-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  padding: clamp(22px, 4vw, 36px);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-mid);
}

.client-card + .client-card {
  margin-top: 22px;
}

.client-card__title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.client-card__actions {
  display: flex;
  align-content: flex-start;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.badge {
  display: inline-flex;
  max-width: 100%;
  min-height: 28px;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  overflow: hidden;
  border-radius: var(--radius-pill);
  color: var(--color-ink);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.25;
}

.badge::before {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.badge--primary {
  background: var(--color-green-soft);
  color: var(--color-brand-deep);
}

.badge--recommend {
  background: var(--color-amber-soft);
  color: var(--color-amber-ink);
}

.badge--retired {
  background: var(--color-panel-strong);
  color: var(--color-ink-soft);
}

.badge--blue {
  background: var(--color-blue-soft);
  color: var(--color-blue);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.article-card {
  display: flex;
  min-width: 0;
  min-height: 100%;
  flex-direction: column;
  padding: 25px;
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-far);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.article-card:hover {
  box-shadow: var(--shadow-mid);
  transform: translateY(-3px);
}

.article-card__meta {
  margin-bottom: 14px;
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-size: 12px;
}

.article-card h3 {
  margin-bottom: 13px;
  font-size: 23px;
}

.article-card p {
  color: var(--color-ink-soft);
}

.article-card__link {
  margin-top: auto;
  font-weight: 600;
  text-decoration: none;
}

.callout {
  position: relative;
  margin: 28px 0;
  padding: 20px 22px 20px 52px;
  border-radius: var(--radius-card);
  background: var(--color-green-soft);
  color: var(--color-ink);
}

.callout::before {
  position: absolute;
  top: 21px;
  left: 22px;
  width: 14px;
  height: 14px;
  border: 3px solid var(--color-brand);
  border-radius: 50%;
  content: "";
}

.callout--warning {
  background: var(--color-amber-soft);
  color: var(--color-amber-ink);
}

.callout--warning::before {
  border-color: var(--color-warning);
}

.callout--blue {
  background: var(--color-blue-soft);
  color: var(--color-ink);
}

.callout--blue::before {
  border-color: var(--color-blue);
}

.dl-fab {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 70;
  display: flex;
  max-width: min(340px, calc(100vw - 32px));
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  border-radius: var(--radius-pill);
  background: var(--color-brand);
  color: var(--color-white-text);
  box-shadow: var(--shadow-near);
  text-decoration: none;
}

.dl-fab:hover {
  background: var(--color-brand-deep);
  color: var(--color-white-text);
}

.dl-fab__icon {
  display: grid;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  place-items: center;
  border-radius: 50%;
  background: var(--color-canvas);
  color: var(--color-brand-deep);
}

.dl-fab__icon svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.dl-fab__text {
  min-width: 0;
  color: var(--color-white-text);
  line-height: 1.35;
}

.dl-fab__text strong,
.dl-fab__text small {
  display: block;
  color: inherit;
}

.dl-fab__text small {
  font-size: 12px;
}

.download-guide-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 48px;
  padding: 28px;
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
}

.download-guide-card__copy p {
  margin-bottom: 0;
  color: var(--color-ink-soft);
}

.ui-mock {
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-mid);
}

.ui-mock__head {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--color-line);
}

.ui-mock__body {
  padding: 16px;
}

.ui-row {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
}

.ui-row + .ui-row {
  border-top: 1px solid var(--color-panel-strong);
}

.ui-row__main {
  min-width: 0;
  flex: 1;
}

.ui-row__note {
  color: var(--color-ink-soft);
  font-size: 12px;
}

.switch {
  position: relative;
  width: 34px;
  height: 19px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-line);
}

.switch::after {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--color-canvas);
  box-shadow: var(--shadow-far);
  content: "";
}

.switch.is-on {
  background: var(--color-brand);
}

.switch.is-on::after {
  right: 2px;
  left: auto;
}

@media (max-width: 820px) {
  .article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .client-card {
    grid-template-columns: 1fr;
  }

  .client-card__actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .term-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

  .tab-list {
    border-radius: var(--radius-card);
  }

  .download-guide-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .dl-fab {
    right: 16px;
    bottom: 16px;
    left: 16px;
    max-width: none;
  }
}