.page-faq {
  --faq-rail-w: 236px;
  --faq-gap: clamp(26px, 4vw, 60px);
  position: relative;
  padding-bottom: clamp(64px, 9vw, 132px);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-top: clamp(18px, 3vw, 34px);
}
.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}
.page-faq .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s ease, border-color .16s ease;
}
.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}
.page-faq .breadcrumb__sep {
  color: var(--line);
}
.page-faq .breadcrumb__current {
  color: var(--ice);
}

/* ---------- 页首 ---------- */
.page-faq .page-head {
  position: relative;
  padding-top: clamp(30px, 5vw, 76px);
  padding-bottom: clamp(36px, 6vw, 84px);
}
.page-faq .page-head__label {
  display: inline-block;
  margin: 0 0 20px;
  padding-left: 12px;
  border-left: 3px solid var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber);
}
.page-faq .page-head__title {
  margin: 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(2.3rem, 7vw, 5.4rem);
  line-height: 1;
  letter-spacing: -.035em;
  color: var(--ice);
}
.page-faq .page-head__title strong {
  display: block;
  font-weight: 800;
  color: var(--neon);
  letter-spacing: -.04em;
}
.page-faq .page-head__lede {
  max-width: 62ch;
  margin: clamp(20px, 3vw, 32px) 0 0;
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.3vw, 1.0625rem);
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 01 快速上手 ---------- */
.page-faq .faq-quick {
  padding-bottom: clamp(52px, 8vw, 104px);
}
.page-faq .faq-quick .section__head {
  max-width: 70ch;
}
.page-faq .faq-quick .section__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--neon);
}
.page-faq .faq-quick .section__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -.025em;
  color: var(--ice);
}
.page-faq .faq-quick .section__title strong {
  font-weight: 800;
  color: var(--neon);
}
.page-faq .faq-quick .section__note {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-quick__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(24px, 4vw, 44px);
}
.page-faq .faq-quick__figure {
  margin: 0;
}
.page-faq .faq-quick__figure img,
.page-faq .faq-block__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-steplist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-faq .faq-steplist__item {
  position: relative;
  padding: 18px 20px 18px 26px;
  background: var(--stand);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.page-faq .faq-steplist__item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--neon);
  opacity: 0;
  transition: opacity .18s ease;
}
.page-faq .faq-steplist__item:hover {
  border-color: var(--neon);
  transform: translate(-3px, -3px);
  box-shadow: 5px 5px 0 0 rgba(3, 7, 16, .92);
}
.page-faq .faq-steplist__item:hover::before {
  opacity: 1;
}
.page-faq .faq-steplist__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--amber);
}
.page-faq .faq-steplist__title {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice);
}
.page-faq .faq-steplist__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 双层结构：左索引 + 右问答 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-top: clamp(36px, 5vw, 72px);
}

.page-faq .faq-rail {
  padding: 20px 18px;
  background: var(--stand);
  border: 2px solid var(--line);
}
.page-faq .faq-rail__head {
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--amber);
}
.page-faq .faq-rail__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.page-faq .faq-rail__item {
  flex: 0 1 auto;
}
.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 10px;
  border-left: 3px solid transparent;
  font-size: .875rem;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  transition: color .16s ease, border-color .16s ease, background .16s ease;
}
.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--ice);
  border-left-color: var(--neon);
  background: var(--neon-soft);
}
.page-faq .faq-rail__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
}

.page-faq .faq-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(40px, 5vw, 76px);
  min-width: 0;
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-faq .faq-block__head {
  margin-bottom: clamp(18px, 3vw, 28px);
}
.page-faq .faq-block__no {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 10px;
  background: var(--neon);
  color: var(--night);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
}
.page-faq .faq-block__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.55rem, 3.2vw, 2.5rem);
  line-height: 1.14;
  letter-spacing: -.025em;
  color: var(--ice);
}
.page-faq .faq-block__note {
  margin: 0;
  max-width: 58ch;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--mist);
}
.page-faq .faq-block__figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
  max-width: 760px;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-acc {
  display: grid;
  gap: 12px;
}
.page-faq .faq-acc__item {
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.page-faq .faq-acc__item:hover {
  border-color: rgba(57, 255, 136, .55);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 0 rgba(3, 7, 16, .92);
}
.page-faq .faq-acc__item[open] {
  border-color: var(--neon);
  transform: none;
  box-shadow: 6px 6px 0 0 rgba(57, 255, 136, .16);
}
.page-faq .faq-acc__q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: clamp(.9375rem, 1.4vw, 1.0625rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ice);
}
.page-faq .faq-acc__q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-acc__q::marker {
  content: "";
}
.page-faq .faq-acc__q:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}
.page-faq .faq-acc__qno {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  transition: color .18s ease;
}
.page-faq .faq-acc__item[open] .faq-acc__qno {
  color: var(--neon);
}
.page-faq .faq-acc__qt {
  flex: 1 1 auto;
  min-width: 0;
}
.page-faq .faq-acc__sign {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
}
.page-faq .faq-acc__sign::before,
.page-faq .faq-acc__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--neon);
  transform: translateY(-50%);
}
.page-faq .faq-acc__sign::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform .2s ease;
}
.page-faq .faq-acc__item[open] .faq-acc__sign::after {
  transform: translateY(-50%) rotate(0deg);
}
.page-faq .faq-acc__a {
  margin: 0 18px 18px;
  padding: 14px 16px;
  background: rgba(5, 11, 26, .55);
  border-left: 3px solid rgba(57, 255, 136, .5);
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--mist);
}
.page-faq .faq-acc__a p {
  margin: 0;
}
.page-faq .faq-acc__a strong {
  color: var(--ice);
  font-weight: 700;
}
.page-faq .faq-acc__a em {
  font-style: normal;
  font-weight: 600;
  color: var(--neon);
}
.page-faq .faq-acc__a a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 136, .4);
  transition: border-color .16s ease;
}
.page-faq .faq-acc__a a:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 等宽快捷键标签 ---------- */
.page-faq kbd {
  display: inline-block;
  margin: 0 2px;
  padding: 4px 8px;
  background: var(--moss);
  border: 1px solid rgba(57, 255, 136, .4);
  border-bottom-width: 3px;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: .8125rem;
  line-height: 1;
  color: var(--neon);
  transition: transform .15s ease, border-color .15s ease;
}
.page-faq kbd:hover {
  transform: translateY(-2px);
  border-color: var(--neon);
}

/* ---------- 联系卡片 ---------- */
.page-faq .faq-contact {
  display: grid;
  background: var(--stand);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-contact__row:last-child {
  border-bottom: 0;
}
.page-faq .faq-contact__key {
  flex: 0 0 88px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}
.page-faq .faq-contact__val {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--ice);
  overflow-wrap: anywhere;
}
.page-faq .faq-contact__val a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .16s ease;
}
.page-faq .faq-contact__val a:hover {
  border-bottom-color: var(--neon);
}
.page-faq .faq-contact__note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--amber);
  font-size: .875rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 回到顶部 ---------- */
.page-faq .faq-totop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: clamp(34px, 5vw, 60px);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mist);
  text-decoration: none;
  transition: color .16s ease, border-color .16s ease;
}
.page-faq .faq-totop:hover,
.page-faq .faq-totop:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 断点 ---------- */
@media (max-width: 640px) {
  .page-faq .faq-steplist__item,
  .page-faq .faq-acc__item,
  .page-faq .faq-contact {
    box-shadow: 5px 5px 0 0 rgba(3, 7, 16, .92);
  }
  .page-faq .faq-contact__key {
    flex: 0 0 100%;
  }
  .page-faq .faq-acc__a {
    margin: 0 12px 14px;
  }
  .page-faq .faq-acc__q {
    gap: 10px;
    padding: 14px 14px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-quick__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding: 22px 20px;
  }
  .page-faq .faq-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }
  .page-faq .faq-rail__item {
    flex: 1 1 auto;
  }
  .page-faq .faq-rail__link {
    padding: 9px 10px;
  }
  .page-faq .faq-main {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1280px) {
  .page-faq .page-head__lede {
    font-size: 1.125rem;
  }
}
<<<END>>>