.page-faq {
  --faq-line: rgba(122, 90, 46, .28);
  --faq-line-soft: rgba(122, 90, 46, .16);
  background: var(--ink-900);
  color: var(--text-body);
  font-family: var(--font-body);
}

/* ---------- 首屏搜索带 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 40px) 0 52px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
}

.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(14, 17, 22, .62) 0%, rgba(14, 17, 22, .9) 58%, var(--ink-900) 100%);
}

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

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 18em;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--text-strong);
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--text-body);
}

.page-faq .faq-search {
  margin-top: 36px;
  max-width: 760px;
}

.page-faq .faq-search__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ochre-300);
}

.page-faq .faq-search__input {
  width: 100%;
  margin-top: 10px;
  padding: 10px 2px 12px;
  background: transparent;
  border: 0;
  border-bottom: 2px solid var(--yellow-400);
  border-radius: 0;
  color: var(--text-strong);
  font-family: var(--font-body);
  font-size: clamp(16px, 2.6vw, 21px);
  line-height: 1.4;
}

.page-faq .faq-search__input::placeholder {
  color: var(--text-dim);
}

.page-faq .faq-search__input:focus-visible {
  outline: 2px solid var(--yellow-400);
  outline-offset: 6px;
}

.page-faq .faq-search__hint {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-pill);
  color: var(--text-body);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--yellow-400);
  color: var(--text-strong);
  background: rgba(242, 194, 48, .08);
  outline: none;
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--ochre-300);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding: 52px 0;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-group--sea {
  background: linear-gradient(180deg, rgba(15, 58, 95, .34), rgba(15, 58, 95, .12));
  border-bottom-color: rgba(62, 127, 168, .28);
}

.page-faq .faq-group__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-group__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--ochre-300);
}

.page-faq .faq-group--sea .faq-group__num {
  color: var(--sea-400);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--text-strong);
}

.page-faq .faq-group__intro {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-group__intro a {
  color: var(--sea-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-list {
  margin-top: 26px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
  transition: box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .qa[open] {
  box-shadow: inset 3px 0 0 var(--turquoise-400);
  background: rgba(47, 164, 142, .05);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text-strong);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1.3;
  color: var(--yellow-400);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

.page-faq .qa[open] .qa__q {
  padding-left: 16px;
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--yellow-400);
  outline-offset: 2px;
}

.page-faq .qa__a {
  padding: 0 0 20px;
}

.page-faq .qa[open] .qa__a {
  padding-left: 16px;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-body);
}

.page-faq .qa__a a {
  color: var(--sea-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 术语表 ---------- */
.page-faq .faq-terms {
  padding: 52px 0;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-terms__head {
  margin-bottom: 30px;
}

.page-faq .faq-group__num--inline {
  margin-bottom: 8px;
}

.page-faq .terms-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-faq .faq-terms__figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-faq .term-group {
  padding-top: 30px;
}

.page-faq .term-group:first-child {
  padding-top: 0;
}

.page-faq .term-group__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--sand-100);
}

.page-faq .term-group__count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-dim);
}

.page-faq .term-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-faq .term {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 3px 10px;
  padding: 13px 14px;
  background: var(--ink-700);
}

.page-faq .term__char {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1.1;
  color: var(--ochre-300);
}

.page-faq .term__name {
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-strong);
}

.page-faq .term__desc {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 仍需帮助 ---------- */
.page-faq .faq-help {
  padding: 52px 0 68px;
}

.page-faq .faq-help__card {
  position: relative;
  padding: 30px 22px;
  border-radius: var(--radius-lg);
  background: var(--sand-100);
  color: #17191d;
  overflow: hidden;
}

.page-faq .faq-help__card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, rgba(122, 90, 46, .12) 0 1px, transparent 1px 44px);
  pointer-events: none;
}

.page-faq .faq-help__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--ochre-600);
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: #101216;
}

.page-faq .faq-help__text {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: #3b3a35;
}

.page-faq .faq-help__list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  max-width: 60ch;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.75;
  color: #3b3a35;
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--turquoise-400);
}

.page-faq .faq-help__actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-help__actions .btn--ghost {
  border-color: rgba(16, 18, 22, .32);
  color: #101216;
}

.page-faq .faq-help__actions .btn--ghost:hover,
.page-faq .faq-help__actions .btn--ghost:focus-visible {
  border-color: var(--ochre-600);
  color: var(--ochre-600);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-group,
  .page-faq .faq-terms,
  .page-faq .faq-help {
    padding-top: 68px;
    padding-bottom: 68px;
  }

  .page-faq .term-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-help__card {
    padding: 40px 36px;
  }

  .page-faq .faq-search__hint {
    font-size: 13.5px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--header-h) + 64px);
    padding-bottom: 64px;
  }

  .page-faq .faq-group__inner {
    grid-template-columns: 92px minmax(0, 1fr);
    column-gap: 36px;
    align-items: start;
  }

  .page-faq .faq-group__num {
    grid-column: 1;
    grid-row: 1 / span 2;
    margin-bottom: 0;
    font-size: 60px;
  }

  .page-faq .faq-group__head,
  .page-faq .faq-list {
    grid-column: 2;
  }

  .page-faq .qa__q {
    font-size: 16.5px;
    padding: 19px 0;
  }
}

@media (min-width: 1024px) {
  .page-faq .terms-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-terms__figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 1200px) {
  .page-faq .term-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__link,
  .page-faq .qa {
    transition: none;
  }
}
<<<END>>>