.page-faq {
  background: var(--ink);
  color: var(--frost);
  font-family: var(--sans);
  padding-bottom: calc(var(--contact-h) + 40px);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--turf);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.page-faq .faq-hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(158deg, rgba(6, 19, 16, 0.5) 0%, rgba(6, 19, 16, 0.86) 52%, rgba(6, 19, 16, 1) 100%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(44px, 9vw, 104px);
  padding-bottom: clamp(32px, 5vw, 68px);
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
  margin: 0 0 22px;
}

.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-faq .label {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime);
  margin: 0;
}

.page-faq .faq-hero__title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--frost);
  margin: 16px 0 0;
  max-width: 17ch;
}

.page-faq .faq-hero__lede {
  max-width: 46ch;
  margin: 22px 0 0;
  font-size: clamp(15px, 2.1vw, 17.5px);
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .faq-hero__stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 18px 34px;
  margin: 34px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 96px;
}

.page-faq .faq-hero__stats .mono {
  font-family: var(--mono);
  font-size: clamp(20px, 3.2vw, 27px);
  letter-spacing: 0.02em;
  color: var(--lime);
  line-height: 1;
}

.page-faq .faq-hero__stats li > span:last-child {
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  padding-top: clamp(36px, 5vw, 72px);
  padding-bottom: clamp(36px, 5vw, 72px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

/* ---------- 分组索引 ---------- */
.page-faq .faq-index__head {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
  margin: 0 0 12px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  gap: 8px;
  flex-wrap: nowrap;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-index__list li {
  flex: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--mist);
  font-size: 13.5px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--frost);
  border-color: var(--lime);
  background: rgba(200, 255, 61, 0.06);
}

.page-faq .faq-index__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--lime);
}

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 84px;
  margin-bottom: clamp(44px, 6vw, 76px);
}

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

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 8px;
  padding-bottom: 16px;
  margin-bottom: 2px;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-group__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
  padding-top: 9px;
}

.page-faq .faq-group__title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 36px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--frost);
  margin: 0;
}

.page-faq .faq-group__note {
  grid-column: 2;
  margin: 0;
  max-width: 54ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--line);
}

.page-faq .qa > summary {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  color: var(--frost);
  transition: color 0.2s var(--ease);
}

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

.page-faq .qa > summary::marker {
  content: "";
}

.page-faq .qa > summary:hover,
.page-faq .qa > summary:focus-visible {
  color: var(--lime);
}

.page-faq .qa[open] > summary {
  color: var(--lime);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(15.5px, 2.2vw, 18px);
  line-height: 1.55;
  letter-spacing: 0;
}

.page-faq .qa[open] .qa__q {
  font-weight: 700;
  line-height: 1.7;
}

.page-faq .qa__mark {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  color: var(--mist);
}

.page-faq .qa[open] .qa__mark {
  color: var(--lime);
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.24s var(--ease);
}

.page-faq .qa__mark::before {
  left: 0;
  right: 0;
  top: 8px;
  height: 2px;
}

.page-faq .qa__mark::after {
  top: 0;
  bottom: 0;
  left: 8px;
  width: 2px;
}

.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
}

.page-faq .qa__a {
  padding: 0 0 22px 34px;
}

.page-faq .qa__a p {
  margin: 0 0 12px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--mist);
}

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

.page-faq .qa__a a {
  color: var(--frost);
  text-decoration: none;
  border-bottom: 1px solid var(--lime);
  transition: color 0.2s var(--ease);
}

.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  color: var(--lime);
}

/* ---------- 参数标签 ---------- */
.page-faq .param {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--frost);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 1px 7px;
  margin: 0 2px;
  cursor: help;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .param:hover {
  border-color: var(--lime);
  color: var(--lime);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 24px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-faq .faq-figure figcaption {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
  padding: 10px 14px;
  border-top: 1px solid var(--line);
}

/* ---------- 联系面板 ---------- */
.page-faq .faq-contact {
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .faq-contact__panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--turf);
}

.page-faq .faq-contact__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
}

.page-faq .faq-contact__card {
  position: relative;
  z-index: 1;
  padding: clamp(22px, 4vw, 46px);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(237, 242, 238, 0.16);
}

.page-faq .faq-contact__title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--frost);
  margin: 14px 0 0;
}

.page-faq .faq-contact__text {
  max-width: 56ch;
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin: 26px 0 28px;
}

.page-faq .faq-contact__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.page-faq .faq-contact__k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-faq .faq-contact__v {
  font-size: 15px;
  line-height: 1.65;
  color: var(--frost);
  word-break: break-word;
}

.page-faq .faq-contact__v a {
  color: var(--frost);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-contact__v a:hover,
.page-faq .faq-contact__v a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 宽屏 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding: 0;
    border-bottom: 0;
  }

  .page-faq .faq-index__list li {
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-index__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
    padding: 11px 10px 11px 16px;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: rgba(200, 255, 61, 0.06);
    border-left-color: var(--lime);
    border-color: rgba(200, 255, 61, 0.06);
    border-left-color: var(--lime);
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 32px;
  }

  .page-faq .qa__a {
    padding-left: 34px;
  }
}

@media (min-width: 1140px) {
  .page-faq .faq-layout {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: 76px;
  }
}

/* ---------- 窄屏 ---------- */
@media (max-width: 560px) {
  .page-faq .qa__a {
    padding-left: 0;
  }

  .page-faq .qa > summary {
    gap: 12px;
  }

  .page-faq .faq-hero__stats {
    gap: 16px 24px;
  }

  .page-faq .faq-hero__stats li {
    min-width: 84px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .qa > summary,
  .page-faq .faq-index__link,
  .page-faq .param {
    transition: none;
  }

  .page-faq .qa[open] .qa__mark::after {
    transform: none;
    opacity: 0;
  }
}
<<<END>>>