.page-faq {
  --faq-text: var(--ink);
  --faq-sub: var(--ink-soft);
  --faq-line: var(--rule-mid);
  --faq-open-bg: rgba(184, 144, 31, 0.07);
  background: var(--warm-white);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: hidden;
}

/* ===== 首屏 ===== */
.page-faq .faq-hero {
  background: var(--midnight);
  color: var(--warm-white);
  padding: 22px 0 0;
  border-bottom: 8px solid var(--gold);
}

.page-faq .faq-crumb {
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
  margin-bottom: 22px;
}

.page-faq .faq-crumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-crumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .faq-crumb-list a {
  color: var(--gold-light);
  text-decoration: none;
}

.page-faq .faq-crumb-list a:hover {
  text-decoration: underline;
}

.page-faq .faq-eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-light);
}

.page-faq h1 {
  margin: 14px 0 16px;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(28px, 6vw, 52px);
  line-height: 1.22;
  letter-spacing: 0.02em;
  color: var(--warm-white);
  max-width: 20em;
}

.page-faq .faq-lede {
  margin: 0 0 26px;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(245, 241, 230, 0.8);
}

.page-faq .faq-index-strip {
  display: flex;
  gap: 0;
  overflow-x: auto;
  border-top: 1px solid var(--line);
  scrollbar-width: thin;
}

.page-faq .faq-index-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 16px;
  border-right: 1px solid var(--line);
  font-size: 13px;
  color: var(--warm-white);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 180ms ease-out, color 180ms ease-out;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: var(--midnight-soft);
  color: var(--gold-light);
}

.page-faq .faq-index-code {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

/* ===== 双栏骨架 ===== */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding-top: 24px;
  padding-bottom: 64px;
}

/* ===== 侧栏索引 ===== */
.page-faq .faq-rail {
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  padding: 10px 0;
  margin-bottom: 8px;
}

.page-faq .faq-rail-title {
  display: none;
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-rail-list {
  display: flex;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--ink-soft, var(--faq-sub));
  text-decoration: none;
  white-space: nowrap;
  border-left: 3px solid transparent;
  transition: color 180ms ease-out, border-color 180ms ease-out;
}

.page-faq .faq-rail-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.08em;
}

.page-faq .faq-rail-link:hover {
  color: var(--ink);
}

.page-faq .faq-rail-link.is-active,
.page-faq .faq-rail-link[aria-current],
.page-faq .faq-rail-link[data-visible="true"] {
  border-left-color: var(--gold);
  color: var(--ink);
  font-weight: 500;
}

/* ===== 分组 ===== */
.page-faq .faq-group {
  padding: 26px 0 10px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-body > .faq-group:first-child {
  border-top: 0;
  padding-top: 8px;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}

.page-faq .faq-group-num {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-faq h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(20px, 3.4vw, 28px);
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: inherit;
}

.page-faq .faq-group-intro {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-sub);
}

/* ===== 折叠问答 ===== */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  background: transparent;
  transition: background-color 200ms ease-out;
}

.page-faq .faq-item[open] {
  background: var(--faq-open-bg);
  box-shadow: inset 3px 0 0 0 var(--gold);
}

.page-faq .faq-item > summary {
  position: relative;
  display: block;
  list-style: none;
  padding: 15px 42px 15px 54px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--faq-text);
  cursor: pointer;
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-item[open] > summary::after {
  content: "\2013";
}

.page-faq .faq-item > summary:focus-visible {
  outline: 1px solid var(--gold-light);
  outline-offset: -3px;
}

.page-faq .faq-q-num {
  position: absolute;
  left: 14px;
  top: 17px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-faq .faq-answer {
  padding: 0 18px 18px 54px;
}

.page-faq .faq-lead {
  position: relative;
  margin: 0 0 12px;
  padding-bottom: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-text);
}

.page-faq .faq-lead::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 48px;
  height: 1px;
  background: var(--gold);
}

.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 28px;
  margin-bottom: 7px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-sub);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-faq .faq-inline-link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(184, 144, 31, 0.5);
}

.page-faq .faq-inline-link:hover {
  color: var(--gold-light);
  border-bottom-color: var(--gold-light);
}

/* ===== 深色分组 ===== */
.page-faq .faq-group--dark {
  --faq-text: var(--warm-white);
  --faq-sub: rgba(245, 241, 230, 0.74);
  --faq-line: rgba(228, 192, 90, 0.24);
  --faq-open-bg: rgba(228, 192, 90, 0.08);
  background: var(--midnight);
  color: var(--warm-white);
  margin: 26px 0 12px;
  padding: 24px 18px 14px;
  border: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group--dark .faq-inline-link {
  color: var(--gold-light);
  border-bottom-color: rgba(228, 192, 90, 0.6);
}

/* ===== 图 ===== */
.page-faq .faq-figure {
  margin: 20px 0 6px;
  border: 1px solid var(--faq-line);
  background: var(--midnight-soft);
}

.page-faq .faq-group:not(.faq-group--dark) .faq-figure {
  background: var(--paper);
}

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

.page-faq .faq-figure figcaption {
  padding: 9px 12px;
  border-top: 1px solid var(--faq-line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--faq-sub);
}

/* ===== 联系方式块 ===== */
.page-faq .faq-contact-box {
  margin: 18px 0 10px;
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--rule-mid);
  border-left: 3px solid var(--gold);
}

.page-faq .faq-contact-row {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.7;
  word-break: break-all;
}

.page-faq .faq-contact-row span {
  display: inline-block;
  min-width: 62px;
  margin-right: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-faq .faq-contact-row a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
}

.page-faq .faq-contact-row a:hover {
  color: var(--gold);
}

.page-faq .faq-contact-note {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-soft, var(--faq-sub));
}

/* ===== 结尾引导 ===== */
.page-faq .faq-tail {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 8px solid var(--gold);
}

.page-faq .faq-tail-text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-sub);
}

.page-faq .faq-tail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

.page-faq .faq-tail-link {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--rule-mid);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 180ms ease-out, color 180ms ease-out, background-color 180ms ease-out;
}

.page-faq .faq-tail-link:hover {
  border-color: var(--gold);
  color: var(--midnight);
  background: var(--paper);
}

/* ===== 桌面 ===== */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding-top: 30px;
  }

  .page-faq .faq-item > summary {
    padding: 17px 48px 17px 62px;
    font-size: 16px;
  }

  .page-faq .faq-q-num {
    left: 18px;
    top: 20px;
    font-size: 12px;
  }

  .page-faq .faq-answer {
    padding: 0 40px 20px 62px;
  }

  .page-faq .faq-group--dark {
    padding: 30px 30px 18px;
  }

  .page-faq .faq-figure {
    margin-top: 24px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-shell {
    grid-template-columns: 248px minmax(0, 1fr);
    column-gap: 52px;
    padding-top: 40px;
    padding-bottom: 88px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--hdr-total) + 20px);
    align-self: start;
    border: 1px solid var(--rule-mid);
    border-left: 3px solid var(--gold);
    padding: 16px 0 18px;
    margin-bottom: 0;
  }

  .page-faq .faq-rail-title {
    display: block;
    padding: 0 16px;
  }

  .page-faq .faq-rail-list {
    display: block;
    overflow: visible;
  }

  .page-faq .faq-rail-link {
    display: flex;
    width: 100%;
    padding: 9px 16px;
    white-space: normal;
    font-size: 13px;
  }

  .page-faq .faq-group {
    padding-top: 34px;
  }

  .page-faq .faq-body > .faq-group:first-child {
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-link,
  .page-faq .faq-rail-link,
  .page-faq .faq-item,
  .page-faq .faq-tail-link {
    transition: none;
  }
}
<<<END>>>