.page-faq {
  background: var(--ink-0);
  color: var(--cloud);
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(4rem, 12vw, 9rem);
  overflow-x: hidden;
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(1.6rem, 4vw, 2.6rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 0;
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-hero h1 {
  margin: 0.9rem 0 0;
  font-family: var(--font-cjk);
  font-weight: 300;
  font-size: clamp(2.1rem, 8.2vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.015em;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: clamp(1.2rem, 3.5vw, 1.9rem) 0 0;
  max-width: 34em;
  font-size: var(--step-17);
  line-height: 1.75;
  color: var(--cloud);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.8rem;
  margin: clamp(1.6rem, 4vw, 2.3rem) 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: var(--step-14);
  color: var(--mist);
}

.page-faq .faq-hero__meta b {
  font-family: var(--font-latin);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-right: 0.4rem;
  font-variant-numeric: tabular-nums;
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  margin-top: clamp(2.5rem, 7vw, 4.5rem);
  display: grid;
  gap: clamp(2.2rem, 6vw, 3.5rem);
  min-width: 0;
}

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

/* ---------- 主题索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__figure {
  margin: 0 0 1.6rem;
}

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 5;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--ink-1);
}

.page-faq .faq-index__label {
  margin: 0 0 0.7rem;
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

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

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

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.72rem 0.2rem;
  color: var(--cloud);
  text-decoration: none;
  font-size: var(--step-14);
  line-height: 1.5;
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--gold-hi);
  transform: translateX(0.35rem);
  outline: none;
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-faq .faq-index__num {
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.12em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-index__count {
  margin-left: auto;
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--mist);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* ---------- 主题分组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(2.6rem, 8vw, 5rem);
  scroll-margin-top: 6rem;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.6rem 1rem;
  align-items: center;
  padding-top: 1.4rem;
  border-top: 2px solid var(--gold);
  margin-bottom: 1.5rem;
}

.page-faq .faq-group__num {
  display: inline-block;
  background: var(--copper);
  color: var(--cloud);
  font-family: var(--font-latin);
  font-size: var(--step-14);
  letter-spacing: 0.12em;
  line-height: 1.2;
  padding: 0.3rem 0.62rem;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-cjk);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(1.5rem, 4.6vw, 2.1rem);
  line-height: 1.15;
  color: var(--cloud);
}

.page-faq .faq-group__note {
  grid-column: 1 / -1;
  margin: 0;
  max-width: 42em;
  font-size: var(--step-14);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-media {
  margin: 0 0 1.8rem;
  padding-left: 1rem;
  border-left: 2px solid var(--copper);
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 520px;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--ink-1);
}

.page-faq .faq-media figcaption {
  max-width: 520px;
  margin-top: 0.7rem;
  font-size: var(--step-12);
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.25s var(--ease);
}

.page-faq .faq-item[open] {
  background: var(--ink-1);
}

.page-faq .faq-item[open]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), var(--teal-deep));
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin: 0;
  padding: 1.1rem 1rem 1.1rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-cjk);
  font-size: clamp(1rem, 3.3vw, 1.15rem);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--cloud);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item__q::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover {
  color: var(--gold-hi);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.12em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  padding-top: 0.25em;
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-latin);
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1;
  color: var(--gold);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
  color: var(--gold-hi);
}

.page-faq .faq-item__a {
  padding: 0 clamp(1rem, 3vw, 1.5rem) 1.5rem;
  font-size: var(--step-17);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-item__a p {
  margin: 0 0 0.85rem;
  max-width: 34em;
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0 0 0.9rem;
  padding: 0;
  display: grid;
  gap: 0.5rem;
  max-width: 34em;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 2.2rem;
  color: var(--cloud);
  line-height: 1.7;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.45em;
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.12em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__more {
  margin: 1.4rem 0 0;
}

.page-faq .faq-group__more a {
  display: inline-block;
  font-family: var(--font-latin);
  font-size: var(--step-14);
  letter-spacing: 0.06em;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--teal-deep);
  padding-bottom: 0.15rem;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-group__more a:hover,
.page-faq .faq-group__more a:focus-visible {
  color: var(--gold-hi);
  border-bottom-color: var(--gold-hi);
  outline: none;
}

/* ---------- 收束 ---------- */
.page-faq .faq-closing {
  margin-top: clamp(2rem, 6vw, 3.5rem);
  padding-top: 1.4rem;
  max-width: 46em;
  display: grid;
  gap: 1.1rem;
}

.page-faq .faq-closing__scale {
  height: 9px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 12px);
}

.page-faq .faq-closing__text {
  margin: 0;
  font-size: var(--step-17);
  line-height: 1.75;
  color: var(--mist);
  max-width: 34em;
}

.page-faq .faq-closing p {
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-item__a {
    padding-left: calc(2.2rem + 1.1rem);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 3.2fr) minmax(0, 8fr);
    gap: clamp(2.5rem, 5vw, 4rem);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 5.5rem;
  }

  .page-faq .faq-media {
    margin-bottom: 2.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__q::after,
  .page-faq .faq-group__more a {
    transition: none;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    transform: none;
  }
}