.page-faq {
  --faq-text: #C9DCD3;
  --faq-panel: rgba(19, 46, 39, .72);
  --faq-panel-open: rgba(19, 46, 39, .96);
  display: block;
  padding-bottom: clamp(64px, 8vw, 110px);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding-block: 24px 0;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(20px, 3vw, 34px) 0;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-faq .faq-hero__frame {
  position: relative;
  isolation: isolate;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: clamp(30px, 4.6vw, 54px);
  background:
    radial-gradient(115% 130% at 0% 0%, rgba(200, 162, 74, .20), transparent 58%),
    radial-gradient(90% 120% at 100% 100%, rgba(56, 232, 200, .12), transparent 62%),
    linear-gradient(158deg, rgba(19, 46, 39, .96), rgba(11, 31, 26, .92));
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-faq .faq-hero__frame::before {
  content: "";
  position: absolute;
  inset: 13px;
  border: 1px dashed rgba(127, 154, 144, .24);
  border-radius: calc(var(--radius-xl) - 12px);
  pointer-events: none;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(32px, 5.4vw, 56px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--paper);
  margin: 16px 0 0;
  max-width: 20ch;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 48ch;
  color: var(--faq-text);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.82;
}

.page-faq .faq-jump {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(5, 11, 9, .42);
  color: var(--paper);
  font-size: 13.5px;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--gold-bright);
  color: var(--gold-bright);
  background: rgba(200, 162, 74, .12);
}

.page-faq .faq-jump .mono {
  color: var(--cyan);
  font-size: 12px;
}

.page-faq .faq-hero__media {
  margin: 0;
  min-height: 250px;
  height: 100%;
}

.page-faq .faq-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 双栏知识库 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 3.4vw, 38px);
  padding-top: clamp(34px, 4.6vw, 58px);
}

.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(19, 46, 39, .90), rgba(11, 31, 26, .86));
  padding: 22px 20px 18px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index__list li + li {
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 2px;
  color: var(--faq-text);
  font-size: 14.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: color .18s ease, transform .18s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--gold-bright);
  transform: translateX(3px);
}

.page-faq .faq-index__list .mono {
  color: var(--cyan);
  font-size: 12px;
  flex: none;
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 问答分区 ---------- */
.page-faq .faq-block {
  scroll-margin-top: 104px;
}

.page-faq .faq-block + .faq-block {
  margin-top: clamp(46px, 6vw, 74px);
  padding-top: clamp(34px, 4.4vw, 50px);
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-block .section-lead {
  max-width: 58ch;
}

.page-faq .faq-list {
  margin-top: clamp(20px, 2.6vw, 28px);
}

.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--faq-panel);
  overflow: hidden;
  transition: border-color .2s ease, background-color .2s ease;
}

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item[open] {
  border-color: var(--line);
  background: var(--faq-panel-open);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 17px 20px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  transition: color .18s ease;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.4;
  color: var(--gold);
  transition: color .18s ease;
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--cyan);
}

.page-faq .faq-item summary:hover {
  color: var(--gold-bright);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .faq-answer {
  padding: 0 20px 20px;
  color: var(--faq-text);
  font-size: 15px;
  line-height: 1.86;
}

.page-faq .faq-answer p {
  margin: 0;
}

.page-faq .faq-answer p + p {
  margin-top: 10px;
}

.page-faq .faq-answer a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-decoration-color: rgba(232, 197, 106, .40);
  text-underline-offset: 3px;
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  color: var(--cyan);
  text-decoration-color: rgba(56, 232, 200, .50);
}

.page-faq .faq-answer .mono {
  color: var(--gold-bright);
}

/* ---------- 窄注释块 ---------- */
.page-faq .faq-note {
  margin-top: 22px;
  padding: 16px 20px;
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: linear-gradient(90deg, rgba(200, 162, 74, .10), rgba(200, 162, 74, .02));
}

.page-faq .faq-note__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .faq-note p:last-child {
  margin: 0;
  color: var(--faq-text);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(5, 11, 9, .50);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 12px 18px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(150deg, rgba(19, 46, 39, .95), rgba(11, 31, 26, .95));
}

.page-faq .faq-contact .contact-row {
  display: grid;
  gap: 4px;
  padding: 16px 20px;
}

.page-faq .faq-contact .contact-row + .contact-row {
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-contact .contact-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-faq .faq-contact .contact-value {
  color: var(--paper);
  font-size: 15px;
  line-height: 1.65;
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-contact .contact-row {
    grid-template-columns: 100px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-faq .faq-item summary {
    font-size: 16.5px;
  }
}

@media (min-width: 1020px) {
  .page-faq .faq-body {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 54px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }
}

@media (max-width: 400px) {
  .page-faq .faq-hero__frame {
    padding: 26px 20px;
  }

  .page-faq .faq-item summary,
  .page-faq .faq-answer {
    padding-inline: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .faq-index__list a,
  .page-faq .faq-item,
  .page-faq .faq-item summary,
  .page-faq .faq-item summary::after {
    transition: none;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    transform: none;
  }
}