.page-faq {
  background: var(--ink-night);
  color: var(--sand-paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-faq .faq-crumbs {
  padding-top: 18px;
  padding-bottom: 4px;
}

.page-faq .faq-crumbs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
}

.page-faq .faq-crumbs__list a {
  color: var(--text-soft);
  text-decoration: none;
}

.page-faq .faq-crumbs__list a:hover {
  color: var(--fluo-cyan);
}

.page-faq .faq-crumbs__list li + li::before {
  content: "／";
  margin-right: 8px;
  color: var(--mountain-mist);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: 22px 0 72px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 36px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 8vw, 66px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 14px 0 20px;
  color: var(--signal-white);
  max-width: 15ch;
}

.page-faq .faq-hero .lede {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-soft);
  max-width: 38ch;
  margin: 0;
}

.page-faq .faq-hero__note {
  margin: 22px 0 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fluo-cyan);
  text-transform: uppercase;
}

.page-faq .faq-hero__panel {
  position: relative;
  isolation: isolate;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  overflow: hidden;
}

.page-faq .faq-hero__map {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  max-width: 100%;
  height: auto;
}

.page-faq .faq-index {
  position: relative;
  padding: 24px 18px 26px;
}

.page-faq .faq-index__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fluo-cyan);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 14px;
  border-left: 2px solid var(--line);
  color: var(--text-soft);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.4;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover {
  color: var(--signal-white);
  border-left-color: var(--line-strong);
  background: rgba(61, 240, 207, 0.06);
}

.page-faq .faq-index__link.is-active {
  color: var(--fluo-cyan);
  border-left-color: var(--fluo-cyan);
  background: rgba(61, 240, 207, 0.09);
}

.page-faq .faq-index__no {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mountain-mist);
}

.page-faq .faq-index__link.is-active .faq-index__no {
  color: var(--fluo-cyan);
}

/* ---------- 章节 ---------- */

.page-faq .faq-section {
  padding: 60px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 140px;
}

.page-faq .faq-section--navy {
  background: var(--pitch-navy);
}

.page-faq .faq-section--indigo {
  background: var(--indigo-deep);
}

.page-faq .faq-section--wine {
  background: var(--wine-deep);
}

.page-faq .faq-section--felt {
  background: var(--green-felt);
}

.page-faq .faq-section--base {
  background: linear-gradient(180deg, var(--ink-night) 0%, #0b1a29 100%);
}

.page-faq .faq-section__inner {
  display: grid;
  gap: 28px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

.page-faq .faq-section h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 5.6vw, 40px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 12px 0 12px;
  color: var(--signal-white);
}

.page-faq .faq-section__intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
  max-width: 36ch;
}

.page-faq .faq-section .eyebrow {
  margin: 0;
}

/* ---------- 问答列表 ---------- */

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

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--sand-paper);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary:hover {
  color: var(--fluo-cyan);
}

.page-faq .faq-item summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-left: auto;
  align-self: center;
  border-right: 2px solid var(--fluo-cyan);
  border-bottom: 2px solid var(--fluo-cyan);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(-135deg);
}

.page-faq .faq-item__no {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fluo-cyan);
}

.page-faq .faq-item__a {
  padding: 0 30px 22px 32px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 44em;
}

.page-faq .faq-flag {
  display: inline-block;
  padding: 0 7px;
  border-radius: 4px;
  background: rgba(61, 240, 207, 0.16);
  color: var(--fluo-cyan);
  font-weight: 600;
}

.page-faq .faq-copy {
  display: inline-flex;
  align-items: center;
  margin-top: 16px;
  padding: 7px 15px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-copy:hover {
  color: var(--fluo-cyan);
  border-color: var(--fluo-cyan);
}

.page-faq .faq-copy[data-copied] {
  color: var(--stand-orange);
  border-color: var(--stand-orange);
}

/* ---------- 图 ---------- */

.page-faq .faq-media {
  margin: 4px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--glass);
}

.page-faq .faq-media .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-faq .faq-media .media__caption {
  display: block;
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
  border-top: 1px solid var(--line);
}

/* ---------- 结尾动作 ---------- */

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 24px 0 0;
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-cta__text {
  flex: 1 1 220px;
  margin: 0;
  font-size: 15px;
  color: var(--text-soft);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-hero__grid,
  .page-faq .faq-section__inner {
    padding: 0 40px;
  }

  .page-faq .faq-list {
    border-top-color: var(--line-strong);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 40px 0 104px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-hero__panel {
    margin-top: 8px;
  }

  .page-faq .faq-index {
    padding: 30px 26px 32px;
  }

  .page-faq .faq-section {
    padding: 104px 0;
  }

  .page-faq .faq-section__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 72px;
    align-items: start;
  }

  .page-faq .faq-section__head {
    position: sticky;
    top: 148px;
  }

  .page-faq .faq-item summary {
    font-size: 17.5px;
    padding: 24px 2px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item summary::after,
  .page-faq .faq-index__link,
  .page-faq .faq-copy {
    transition: none;
  }
}
<<<END>>>