.page-faq {
  background: var(--c-salt);
  color: var(--c-ink);
  font-family: var(--font-body);
  padding-bottom: clamp(40px, 7vw, 88px);
  overflow-x: hidden;
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding-top: 18px;
  font-size: 0.8125rem;
  color: var(--c-mist);
}

.page-faq .breadcrumbs a {
  color: var(--c-glacier);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover {
  color: var(--c-teal);
  text-decoration: underline;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  margin-top: 16px;
  padding: clamp(28px, 5vw, 64px) 0 clamp(28px, 4vw, 52px);
  background:
    radial-gradient(120% 100% at 92% 0%, rgba(240, 122, 43, 0.16), rgba(240, 122, 43, 0) 58%),
    linear-gradient(158deg, var(--c-lake) 0%, var(--c-salt) 68%);
  border-bottom: 1px solid var(--c-grid);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(11, 92, 122, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 92, 122, 0.07) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(122deg, #000 0%, transparent 68%);
  mask-image: linear-gradient(122deg, #000 0%, transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 5.2vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--c-teal);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(0.9688rem, 1.1vw, 1.0625rem);
  line-height: 1.8;
  color: var(--c-ink);
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 15px;
  border: 1px solid var(--c-grid);
  border-radius: var(--radius-pill);
  background: var(--c-snow);
  color: var(--c-glacier);
  font-size: 0.875rem;
  text-decoration: none;
  transition: border-color 240ms var(--ease-out), color 240ms var(--ease-out), transform 240ms var(--ease-out);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--c-orange);
  color: var(--c-ember);
  transform: translateY(-1px);
}

/* ---------- Pinned cards ---------- */
.page-faq .faq-pinned {
  padding: clamp(32px, 5vw, 60px) 0 clamp(8px, 1.5vw, 16px);
}

.page-faq .faq-pinned__head {
  margin-bottom: clamp(18px, 2.6vw, 28px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-grid);
}

.page-faq .faq-pinned__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.4vw, 1.625rem);
  letter-spacing: -0.01em;
  color: var(--c-teal);
}

.page-faq .faq-pinned__head p {
  margin: 8px 0 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-faq .pinned-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-faq .pinned-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--c-snow);
  border: 1px solid var(--c-grid);
  border-radius: var(--radius-sharp);
}

.page-faq .pinned-card.is-pinned {
  border-left: 4px solid var(--c-ember);
  background: linear-gradient(180deg, #FFF4ED 0%, var(--c-snow) 62%);
  box-shadow: 0 22px 44px -36px rgba(195, 58, 16, 0.7);
}

.page-faq .pinned-card__top {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-faq .pinned-card__num {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  color: var(--c-mist);
}

.page-faq .pinned-card.is-pinned .pinned-card__num {
  color: var(--c-ember);
}

.page-faq .pinned-card__flag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: var(--c-ember);
  color: var(--c-snow);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.page-faq .pinned-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  line-height: 1.45;
  color: var(--c-teal);
}

.page-faq .pinned-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .pinned-card__link {
  margin-top: auto;
  padding-top: 6px;
  width: fit-content;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-glacier);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .pinned-card__link:hover,
.page-faq .pinned-card__link:focus-visible {
  color: var(--c-ember);
}

/* ---------- Layout ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 48px);
  padding-top: clamp(28px, 4vw, 48px);
}

.page-faq .faq-body {
  min-width: 0;
}

/* ---------- TOC ---------- */
.page-faq .faq-toc {
  align-self: start;
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-faq .faq-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-grid);
}

.page-faq .faq-toc__list li {
  border-bottom: 1px solid var(--c-grid);
}

.page-faq .faq-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 2px;
  font-size: 0.9375rem;
  color: var(--c-ink);
  text-decoration: none;
  transition: color 200ms var(--ease-out), padding-left 200ms var(--ease-out);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--c-teal);
  padding-left: 6px;
}

.page-faq .faq-toc__list .mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--c-orange);
}

/* ---------- Sections ---------- */
.page-faq .faq-section {
  scroll-margin-top: 96px;
}

.page-faq .faq-section + .faq-section {
  margin-top: clamp(36px, 5vw, 64px);
}

.page-faq .faq-section__head {
  position: relative;
  margin-bottom: clamp(14px, 2vw, 20px);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-grid);
}

.page-faq .faq-section__mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--c-orange);
}

.page-faq .faq-section__title {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.6vw, 1.75rem);
  letter-spacing: -0.01em;
  color: var(--c-teal);
}

.page-faq .faq-section__note {
  margin: 6px 0 0;
  font-size: 0.875rem;
  color: var(--c-mist);
}

/* ---------- Path figure ---------- */
.page-faq .faq-path {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  padding: 14px;
  background: var(--c-snow);
  border: 1px solid var(--c-grid);
  border-radius: var(--radius-sharp);
}

.page-faq .faq-path svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-path figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--c-mist);
}

/* ---------- Accordion ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--c-grid);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--c-grid);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--c-ink);
  transition: color 200ms var(--ease-out), background-color 200ms var(--ease-out);
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  line-height: 1;
  color: var(--c-glacier);
}

.page-faq .faq-item[open] > summary::after {
  content: "–";
  color: var(--c-ember);
}

.page-faq .faq-item > summary:hover {
  color: var(--c-teal);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 3px;
}

.page-faq .faq-item__num {
  flex: none;
  min-width: 26px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-orange);
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--c-ember);
}

.page-faq .faq-item__q {
  min-width: 0;
}

.page-faq .faq-item__a {
  margin: 0 2px 0 38px;
  padding: 14px 0 18px;
  border-top: 1px solid var(--c-grid);
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--c-ink);
  max-width: 66ch;
}

.page-faq .faq-item__a .mono {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--c-ember);
}

/* ---------- Figures ---------- */
.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
  border: 1px solid var(--c-grid);
  border-radius: var(--radius-sharp);
  background: var(--c-lake);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- Inline links ---------- */
.page-faq .faq-inline-link {
  margin: 18px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--c-mint);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .faq-inline-link a {
  color: var(--c-glacier);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-inline-link a:hover,
.page-faq .faq-inline-link a:focus-visible {
  color: var(--c-ember);
}

/* ---------- Contact ---------- */
.page-faq .faq-contact {
  position: relative;
  overflow: hidden;
  margin-top: clamp(40px, 6vw, 80px);
  padding: clamp(26px, 4vw, 48px);
  background: var(--c-deep);
  border-radius: var(--radius-sharp);
  color: var(--c-snow);
  scroll-margin-top: 96px;
}

.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 80% at 6% 0%, rgba(15, 110, 140, 0.55), rgba(15, 110, 140, 0) 62%),
    radial-gradient(50% 70% at 96% 100%, rgba(240, 122, 43, 0.32), rgba(240, 122, 43, 0) 66%);
  pointer-events: none;
}

.page-faq .faq-contact__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 44px);
}

.page-faq .faq-contact__intro h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.375rem, 2.8vw, 2rem);
  letter-spacing: -0.01em;
  color: var(--c-snow);
}

.page-faq .faq-contact__lead {
  margin: 14px 0 22px;
  max-width: 48ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
}

.page-faq .faq-contact__lead a {
  color: var(--c-orange);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-contact__lead a:hover,
.page-faq .faq-contact__lead a:focus-visible {
  color: #FFB27A;
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(199, 219, 226, 0.28);
}

.page-faq .faq-contact__item {
  padding: 13px 0;
  border-bottom: 1px solid rgba(199, 219, 226, 0.28);
}

.page-faq .faq-contact__item dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}

.page-faq .faq-contact__item dd {
  margin: 6px 0 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-snow);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__item dd.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-faq .faq-contact__item dd a {
  color: var(--c-snow);
  text-decoration: none;
  border-bottom: 1px solid var(--c-orange);
}

.page-faq .faq-contact__item dd a:hover,
.page-faq .faq-contact__item dd a:focus-visible {
  color: #FFB27A;
}

/* ---------- Media queries ---------- */
@media (min-width: 640px) {
  .page-faq .faq-item__a {
    margin-left: 38px;
    padding-left: 0;
  }
}

@media (min-width: 760px) {
  .page-faq .pinned-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-path {
    padding: 20px;
  }

  .page-faq .faq-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(16px, 2.4vw, 32px);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-pad) + 82px);
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-faq .faq-path svg {
    max-height: 200px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-item > summary,
  .page-faq .faq-toc__list a {
    transition: none;
  }

  .page-faq .faq-chip:hover {
    transform: none;
  }
}

已按协议输出。