.page-faq {
  --faq-rail: 208px;
  --faq-gap: clamp(20px, 3vw, 44px);
  background: var(--bg);
  color: var(--fg);
  padding-bottom: clamp(56px, 9vw, 120px);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-block: clamp(14px, 3vw, 26px) clamp(20px, 3.4vw, 36px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.page-faq .breadcrumb a {
  color: var(--fg-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-portal {
  padding-bottom: clamp(28px, 5vw, 60px);
}
.page-faq .faq-portal__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}
.page-faq .faq-portal__lead .eyebrow {
  color: var(--gold);
}
.page-faq .faq-portal h1 {
  margin-block: clamp(12px, 2vw, 20px) clamp(16px, 2.4vw, 26px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 74px);
  line-height: 1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.page-faq .faq-hl {
  color: var(--lime);
  text-decoration: underline;
  text-decoration-thickness: 4px;
  text-underline-offset: 6px;
  text-decoration-color: rgba(199, 242, 60, 0.45);
}
.page-faq .faq-portal__lede {
  max-width: 58ch;
  margin: 0;
  color: var(--fg-soft);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.78;
}

.page-faq .faq-portal__board {
  padding: clamp(20px, 2.6vw, 30px);
  background: linear-gradient(158deg, rgba(6, 16, 31, 0.97), rgba(11, 27, 51, 0.9));
  border: 1px solid var(--line-gold);
  clip-path: var(--chamfer-l);
  box-shadow: var(--shadow-panel);
}
.page-faq .faq-portal__board-title {
  margin: 0;
  color: var(--scarf);
}
.page-faq .faq-portal__list {
  display: grid;
  gap: 2px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-portal__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 4px;
  color: var(--milk);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px dashed rgba(201, 150, 43, 0.24);
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.page-faq .faq-portal__list a:hover,
.page-faq .faq-portal__list a:focus-visible {
  color: var(--lime);
  padding-left: 12px;
}
.page-faq .faq-portal__list .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
}
.page-faq .faq-portal__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fg-faint);
}

/* ---------- 布局：左索引 + 右问答 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: clamp(30px, 5vw, 60px);
}

.page-faq .faq-rail {
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 16px;
}
.page-faq .faq-rail__label {
  margin: 0 0 10px;
  color: var(--gold);
}
.page-faq .faq-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-rail__link {
  display: block;
  padding: 7px 13px;
  color: var(--fg-soft);
  font-size: 13.5px;
  line-height: 1.4;
  text-decoration: none;
  background: rgba(56, 80, 110, 0.22);
  clip-path: var(--chamfer-s);
  transition: background-color 0.2s ease, color 0.2s ease;
}
.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--night);
  background: var(--lime);
}
.page-faq .faq-rail__seat {
  display: none;
  margin: 16px 0 0;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  border-top: 1px dashed var(--line-gold);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  counter-reset: qa;
  padding-top: clamp(26px, 4vw, 50px);
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--header-offset) + 24px);
}
.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-faq .faq-block__head {
  max-width: 68ch;
}
.page-faq .faq-block__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}
.page-faq .faq-block h2 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 850;
  font-size: clamp(23px, 3.3vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}
.page-faq .faq-block__lede {
  margin: 0;
  max-width: 62ch;
  color: var(--fg-soft);
  font-size: 15.5px;
  line-height: 1.72;
}
.page-faq .faq-block__body {
  margin-top: clamp(14px, 2vw, 24px);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  counter-increment: qa;
  border-top: 1px solid var(--line-soft);
}
.page-faq .qa:last-child {
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .qa summary {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) 16px;
  gap: 12px;
  align-items: start;
  padding: clamp(13px, 1.9vw, 20px) 0;
  cursor: pointer;
  list-style: none;
  color: var(--milk);
  font-size: clamp(15.5px, 1.5vw, 17.5px);
  font-weight: 650;
  line-height: 1.55;
}
.page-faq .qa summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}
.page-faq .qa__no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--slate);
  transition: color 0.2s ease;
}
.page-faq .qa__no::before {
  content: counter(qa, decimal-leading-zero);
}
.page-faq .qa[open] .qa__no {
  color: var(--lime);
}
.page-faq .qa__text {
  min-width: 0;
}
.page-faq .qa__mark {
  justify-self: end;
  width: 9px;
  height: 9px;
  margin-top: 6px;
  border-right: 2px solid var(--scarf);
  border-bottom: 2px solid var(--scarf);
  transform: rotate(45deg);
  transition: transform 0.24s ease, border-color 0.24s ease;
}
.page-faq .qa[open] .qa__mark {
  border-color: var(--lime);
  transform: rotate(225deg);
}
.page-faq .qa__a {
  padding-bottom: clamp(15px, 2.2vw, 26px);
  max-width: 74ch;
  color: var(--fg-soft);
  font-size: 15.5px;
  line-height: 1.78;
}
.page-faq .qa__a p {
  margin: 0;
}
.page-faq .qa__a a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  color: var(--milk);
}
.page-faq .qa[open] .qa__a {
  animation: faq-drop 0.22s ease both;
}
@keyframes faq-drop {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 区块配图 ---------- */
.page-faq .faq-block__media {
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 6px;
  background: var(--ink);
  border: 1px solid var(--line-gold);
  clip-path: var(--chamfer-l);
}
.page-faq .faq-block__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-block__media figcaption {
  padding: 10px 6px 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--fg-faint);
}

/* ---------- 收尾行动块 ---------- */
.page-faq .faq-coda {
  display: grid;
  gap: 14px;
  margin-top: clamp(44px, 7vw, 92px);
  padding: clamp(26px, 4.4vw, 52px);
  background: linear-gradient(118deg, rgba(255, 90, 43, 0.18), rgba(11, 27, 51, 0) 62%), var(--ink);
  border-left: 3px solid var(--flame);
  clip-path: var(--chamfer-l);
}
.page-faq .faq-coda__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 850;
  font-size: clamp(22px, 3.2vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.01em;
}
.page-faq .faq-coda__text {
  margin: 0;
  max-width: 58ch;
  color: var(--fg-soft);
  font-size: 15.5px;
  line-height: 1.75;
}
.page-faq .faq-coda__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .qa__a {
    padding-left: 38px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-portal__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-offset) + 18px);
    padding: 0 0 0 16px;
    border-bottom: 0;
    border-left: 1px solid var(--line-gold);
  }
  .page-faq .faq-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }
  .page-faq .faq-rail__link {
    background: transparent;
    padding: 8px 8px 8px 0;
    clip-path: none;
    border-left: 0;
  }
  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    color: var(--lime);
    background: transparent;
    padding-left: 8px;
  }
  .page-faq .faq-rail__seat {
    display: block;
  }
  .page-faq .faq-coda {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: center;
    column-gap: clamp(24px, 3vw, 48px);
  }
  .page-faq .faq-coda__text {
    grid-column: 1;
  }
  .page-faq .faq-coda__acts {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-content: flex-end;
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[open] .qa__a {
    animation: none;
  }
  .page-faq .qa__mark,
  .page-faq .qa__no,
  .page-faq .faq-rail__link,
  .page-faq .faq-portal__list a {
    transition: none;
  }
  .page-faq .faq-portal__list a:hover,
  .page-faq .faq-portal__list a:focus-visible {
    padding-left: 4px;
  }
}
<<<END>>>