.page-faq {
  --faq-line: rgba(216, 213, 200, 0.2);
  --faq-body: rgba(234, 243, 238, 0.78);
  background: var(--night);
  color: var(--mint);
  overflow-x: hidden;
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-masthead {
  position: relative;
  padding-block: clamp(20px, 3.5vw, 40px) clamp(30px, 5vw, 56px);
}

.page-faq .faq-masthead .eyebrow {
  color: var(--whistle);
}

.page-faq .faq-title {
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: clamp(38px, 8.6vw, 78px);
  line-height: 1.04;
  letter-spacing: -0.035em;
  color: var(--paper);
  margin: 16px 0 0;
  max-width: 14em;
}

.page-faq .faq-title em {
  font-style: normal;
  color: var(--whistle);
}

.page-faq .faq-deck {
  margin: clamp(18px, 3vw, 28px) 0 0;
  max-width: 40em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .masthead-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-faq .masthead-figures .stat {
  background: var(--field);
  padding: 15px 16px 17px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .masthead-figures .stat-figure {
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 34px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--whistle);
}

.page-faq .masthead-figures .stat-label {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--mute);
}

/* ---------- 顶部问题地图 ---------- */
.page-faq .q-map-wrap {
  border-block: 1px solid var(--faq-line);
  background: linear-gradient(90deg, rgba(18, 58, 50, 0.92), rgba(11, 42, 37, 0.92));
  padding-block: 12px;
  margin-bottom: clamp(30px, 5vw, 58px);
  padding-inline: var(--gutter);
}

.page-faq .q-map {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .q-map a {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: inline-flex;
  align-items: center;
  padding: 8px 15px;
  border: 1px solid rgba(201, 242, 77, 0.38);
  border-radius: var(--radius-pill);
  color: var(--mint);
  font-size: 13px;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .q-map a:hover,
.page-faq .q-map a:focus-visible {
  background: var(--whistle);
  border-color: var(--whistle);
  color: var(--night);
}

/* ---------- 章节 ---------- */
.page-faq .faq-chapter {
  padding-block: clamp(32px, 5vw, 58px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-chapter:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-faq .chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: center;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-faq .chapter-num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.8vw, 28px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--whistle);
  align-self: start;
  padding-top: 4px;
}

.page-faq .chapter-head h2 {
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: clamp(23px, 4.4vw, 33px);
  line-height: 1.16;
  letter-spacing: -0.025em;
  color: var(--paper);
  margin: 0;
  align-self: start;
}

.page-faq .chapter-sub {
  grid-column: 2;
  margin: 2px 0 0;
  max-width: 38em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa-list {
  display: block;
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
  scroll-margin-top: 120px;
}

.page-faq .qa:first-child {
  border-top: 1px solid var(--faq-line);
}

.page-faq .qa summary {
  list-style: none;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 14px;
  gap: 0 14px;
  align-items: center;
  padding: 17px 0;
  cursor: pointer;
  transition: color 0.2s var(--ease);
}

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

.page-faq .qa-num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--whistle);
  opacity: 0.75;
}

.page-faq .qa-q {
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(16.5px, 3.5vw, 20px);
  line-height: 1.48;
  letter-spacing: -0.012em;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

.page-faq .qa summary:hover .qa-q,
.page-faq .qa summary:focus-visible .qa-q {
  color: var(--whistle-lit);
}

.page-faq .qa-caret {
  width: 9px;
  height: 9px;
  justify-self: end;
  border-right: 2px solid var(--whistle);
  border-bottom: 2px solid var(--whistle);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.25s var(--ease);
}

.page-faq .qa[open] .qa-caret {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-faq .qa-body {
  padding: 0 0 22px 54px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .qa-conclusion {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  max-width: 44em;
}

.page-faq .qa-conclusion span {
  font-weight: 600;
  color: var(--paper);
  padding-bottom: 3px;
  background-image: linear-gradient(var(--whistle), var(--whistle));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 2px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.page-faq .qa-body p:not(.qa-conclusion) {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-body);
  max-width: 46em;
}

.page-faq .qa-body a {
  color: var(--whistle);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 242, 77, 0.45);
  padding-bottom: 1px;
}

.page-faq .qa-body a:hover {
  color: var(--whistle-lit);
  border-bottom-color: var(--whistle-lit);
}

/* ---------- 章节图文排布 ---------- */
.page-faq .chapter-body--media {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}

.page-faq .chapter-media {
  margin: 0;
}

.page-faq .chapter-media .media {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--field);
  overflow: hidden;
}

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

.page-faq .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 求助区块 ---------- */
.page-faq .faq-chapter--help {
  border-top: 1px solid var(--faq-line);
}

.page-faq .help-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid rgba(201, 242, 77, 0.3);
  border-radius: var(--radius-lg);
  background: linear-gradient(158deg, var(--field) 0%, rgba(34, 49, 92, 0.92) 100%);
  box-shadow: var(--shadow-sheet);
  overflow: hidden;
}

.page-faq .help-line {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .help-line .num {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-faq .help-card a {
  color: var(--whistle);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 242, 77, 0.45);
  padding-bottom: 1px;
}

.page-faq .help-card a:hover {
  color: var(--whistle-lit);
  border-bottom-color: var(--whistle-lit);
}

.page-faq .help-note {
  margin: 18px 0 10px;
  font-size: 14px;
  color: var(--mint);
  letter-spacing: 0.01em;
}

.page-faq .help-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  max-width: 38em;
}

.page-faq .help-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-body);
}

.page-faq .help-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 8px;
  height: 2px;
  background: var(--whistle);
}

.page-faq .help-tail {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
  max-width: 40em;
}

.page-faq .help-card-side {
  display: none;
  position: relative;
}

.page-faq .help-big {
  font-family: var(--font-mono);
  font-size: clamp(90px, 16vw, 168px);
  font-weight: 700;
  line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 2px rgba(201, 242, 77, 0.45);
  letter-spacing: -0.04em;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .masthead-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .chapter-body--media {
    grid-template-columns: minmax(0, 1.6fr) minmax(228px, 0.82fr);
    gap: clamp(26px, 4vw, 46px);
  }

  .page-faq .chapter-body--media-rev {
    grid-template-columns: minmax(228px, 0.82fr) minmax(0, 1.6fr);
  }

  .page-faq .chapter-body--media-rev .chapter-media {
    order: 0;
  }

  .page-faq .chapter-body--media-rev .qa-list {
    order: 1;
  }

  .page-faq .help-card {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

  .page-faq .help-card-side {
    display: block;
  }
}

@media (min-width: 1260px) {
  .page-faq .q-map-wrap {
    padding-inline: calc((100vw - var(--wrap)) / 2);
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 519px) {
  .page-faq .qa summary {
    grid-template-columns: 34px minmax(0, 1fr) 12px;
    gap: 0 12px;
  }

  .page-faq .qa-body {
    padding-left: 46px;
    padding-bottom: 18px;
  }

  .page-faq .qa-num {
    font-size: 11.5px;
  }

  .page-faq .qa-conclusion {
    font-size: 15.5px;
  }

  .page-faq .faq-title {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .q-map a,
  .page-faq .qa-caret,
  .page-faq .qa-q {
    transition: none;
  }
}
<<<END>>>