.page-faq {
  --faq-measure: 34em;
  --faq-hair: 1px;
  background:
    radial-gradient(880px 520px at 84% -10%, rgba(53, 224, 208, 0.1), transparent 64%),
    radial-gradient(720px 460px at 2% 16%, rgba(242, 72, 140, 0.08), transparent 62%),
    var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-faq .lp-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-faq .lp-index::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--neon);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-top: calc(var(--header-h) + clamp(36px, 7vw, 88px));
  padding-bottom: clamp(36px, 6vw, 72px);
}

.page-faq .faq-hero__inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  gap: clamp(30px, 5vw, 64px);
  align-items: end;
}

.page-faq .lp-breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mute);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .lp-breadcrumb a {
  color: var(--mute);
  text-decoration: none;
  transition: color 240ms var(--ease);
}

.page-faq .lp-breadcrumb a:hover,
.page-faq .lp-breadcrumb a:focus-visible {
  color: var(--amber-soft);
}

.page-faq .lp-breadcrumb__sep {
  color: var(--line);
}

.page-faq .faq-hero__index {
  margin-bottom: 18px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(38px, 7.6vw, 96px);
  line-height: 0.94;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(20px, 3vw, 32px);
  color: var(--paper);
}

.page-faq .faq-hero__hl {
  color: var(--amber-soft);
}

.page-faq .faq-hero__lead {
  max-width: var(--faq-measure);
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: 0.01em;
  margin: 0;
  color: rgba(244, 247, 245, 0.78);
}

.page-faq .faq-hero__fig {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero__fig::before {
  content: "";
  position: absolute;
  inset: -1px -1px auto;
  height: 2px;
  background: var(--neon);
  z-index: 1;
}

.page-faq .faq-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--faq-hair) solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-hero__fig figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

/* ---------- 主体布局 ---------- */

.page-faq .faq-body {
  padding-bottom: clamp(48px, 8vw, 104px);
}

.page-faq .faq-layout {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  gap: clamp(32px, 5vw, 72px);
}

/* ---------- 侧栏目录 ---------- */

.page-faq .faq-nav {
  border-top: var(--faq-hair) solid var(--line);
  padding-top: 18px;
}

.page-faq .faq-nav__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-nav__item {
  flex: 0 0 auto;
}

.page-faq .faq-nav__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 12px;
  border: var(--faq-hair) solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 240ms var(--ease), background 240ms var(--ease), color 240ms var(--ease);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  border-color: var(--cyan);
  color: var(--amber-soft);
}

.page-faq .faq-nav__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.page-faq .faq-nav__hint {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

.page-faq .faq-nav__hint a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(44px, 7vw, 88px);
  padding-top: clamp(32px, 5vw, 60px);
  border-top: var(--faq-hair) solid var(--line);
}

.page-faq .faq-group__title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 12px 0 0;
  color: var(--paper);
}

.page-faq .faq-group__lead {
  margin: 14px 0 clamp(20px, 3vw, 32px);
  max-width: 38em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mute);
}

.page-faq .faq-fig {
  margin: 0 0 clamp(22px, 3vw, 34px);
  max-width: 440px;
}

.page-faq .faq-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--faq-hair) solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-fig figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

/* ---------- 折叠条目 ---------- */

.page-faq .faq-list {
  border-top: var(--faq-hair) solid var(--line);
}

.page-faq .faq-item {
  border-bottom: var(--faq-hair) solid var(--line);
  transition: background 240ms var(--ease);
}

.page-faq .faq-item:hover {
  background: rgba(244, 247, 245, 0.03);
}

.page-faq .faq-item__h {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-item__btn {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 20px 4px 20px 18px;
  background: none;
  border: 0;
  border-radius: var(--radius);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: clamp(16px, 1.7vw, 19px);
  font-weight: 500;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: color 240ms var(--ease);
}

.page-faq .faq-item__btn::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: var(--cyan);
  opacity: 0;
  transition: opacity 300ms var(--ease);
}

.page-faq .faq-item__btn[aria-expanded="true"]::before {
  opacity: 1;
}

.page-faq .faq-item__btn:hover,
.page-faq .faq-item__btn:focus-visible {
  color: var(--amber-soft);
}

.page-faq .faq-item__btn:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 3px;
}

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

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 4px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--amber);
  transition: transform 320ms var(--ease), background 320ms var(--ease);
}

.page-faq .faq-item__icon::before {
  width: 14px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__icon::after {
  width: 1.5px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__btn[aria-expanded="true"] .faq-item__icon::before {
  transform: translate(-50%, -50%) rotate(45deg);
  background: var(--cyan);
}

.page-faq .faq-item__btn[aria-expanded="true"] .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(45deg);
  background: var(--cyan);
}

.page-faq .faq-item__panel {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows 340ms var(--ease);
}

.page-faq .faq-item__btn[aria-expanded="false"] + .faq-item__panel {
  grid-template-rows: 0fr;
}

.page-faq .faq-item__inner {
  overflow: hidden;
  min-height: 0;
}

.page-faq .faq-item__inner p {
  margin: 0;
  padding: 0 4px 22px 18px;
  max-width: var(--faq-measure);
  font-size: 15.5px;
  line-height: 1.9;
  letter-spacing: 0.01em;
  color: rgba(244, 247, 245, 0.76);
}

.page-faq .faq-item__inner a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  transition: color 240ms var(--ease);
}

.page-faq .faq-item__inner a:hover,
.page-faq .faq-item__inner a:focus-visible {
  color: var(--amber-soft);
}

.page-faq .faq-item__inner a:focus-visible {
  outline: 1px solid var(--amber);
  outline-offset: 2px;
}

/* ---------- 收尾 ---------- */

.page-faq .faq-cta {
  padding-bottom: clamp(56px, 9vw, 120px);
}

.page-faq .faq-cta__inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: clamp(28px, 5vw, 56px) var(--gutter);
  position: relative;
  border-top: 2px solid transparent;
  border-image: var(--neon) 1;
  background:
    linear-gradient(180deg, rgba(18, 48, 42, 0.85), rgba(10, 27, 23, 0.2));
}

.page-faq .faq-cta__index {
  color: var(--rose);
}

.page-faq .faq-cta__index::before {
  background: var(--rose);
}

.page-faq .faq-cta__title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(26px, 4vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  color: var(--paper);
}

.page-faq .faq-cta__text {
  max-width: 40em;
  margin: 14px 0 clamp(22px, 3vw, 32px);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 247, 245, 0.78);
}

.page-faq .faq-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-item__inner p {
    font-size: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, 250px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-faq .faq-nav__list {
    flex-direction: column;
    gap: 2px;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-nav__item {
    flex: 0 1 auto;
  }

  .page-faq .faq-nav__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: none;
    padding: 9px 10px 9px 14px;
    white-space: normal;
    font-size: 15px;
  }

  .page-faq .faq-nav__link:hover,
  .page-faq .faq-nav__link:focus-visible {
    border-left-color: var(--cyan);
    background: var(--glass);
  }

  .page-faq .faq-fig {
    max-width: 460px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    column-gap: clamp(48px, 6vw, 96px);
  }

  .page-faq .faq-item__inner p {
    padding-left: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__panel,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-item__btn,
  .page-faq .faq-nav__link {
    transition-duration: 1ms;
  }
}
<<<END>>>