.page-faq {
  --faq-hair: rgba(174, 186, 202, 0.16);
  --faq-wash: rgba(139, 230, 216, 0.06);
  --faq-warm: rgba(255, 90, 54, 0.12);
}

.page-faq .page-faq-head {
  padding-block: 1.25rem 2.75rem;
}

.page-faq .breadcrumbs {
  margin-bottom: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--line);
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--teal-glow);
  border-bottom-color: var(--teal-glow);
}

.page-faq .faq-hd .display {
  margin: 0.55rem 0 1.15rem;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.05rem, 7.4vw, 4.3rem);
  line-height: 1.03;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-faq .faq-hd .lede {
  max-width: var(--measure);
  color: var(--mist);
  font-size: clamp(0.96rem, 2.4vw, 1.06rem);
  line-height: 1.85;
  margin: 0;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.6rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--paper);
  border-color: var(--signal);
  background: var(--faq-warm);
}

/* ---- 索引 ---- */
.page-faq .page-faq-index {
  padding-block: 2.5rem 3rem;
}

.page-faq .faq-index-grid {
  display: grid;
  gap: 2rem;
}

.page-faq .faq-index-main .display--tight {
  margin: 0 0 0.9rem;
  font-size: clamp(1.45rem, 4.4vw, 2rem);
  font-weight: 450;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-index-main .prose {
  max-width: var(--measure);
  color: var(--mist);
  line-height: 1.85;
  font-size: 0.95rem;
  margin: 0 0 1.6rem;
}

.page-faq .faq-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-links a {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 0.15rem 0.6rem;
  padding: 0.9rem 0.5rem 0.9rem 0;
  text-decoration: none;
  color: var(--paper);
  transition: background var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-faq .faq-links a:hover,
.page-faq .faq-links a:focus-visible {
  background: linear-gradient(90deg, var(--faq-warm), rgba(255, 90, 54, 0) 72%);
  padding-left: 0.6rem;
}

.page-faq .faq-links-num {
  grid-row: span 2;
  font-size: 0.76rem;
  color: var(--teal);
  padding-top: 0.22rem;
}

.page-faq .faq-links-label {
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.page-faq .faq-links-note {
  font-size: 0.79rem;
  color: var(--mist);
  line-height: 1.55;
}

.page-faq .faq-index-figure {
  margin: 0;
}

.page-faq .faq-index-figure img,
.page-faq .faq-support-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.94) contrast(1.02);
}

.page-faq .media-caption {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--mist);
  line-height: 1.6;
}

/* ---- 问答块 ---- */
.page-faq .faq-block {
  padding-block: 2.4rem 0.6rem;
  border-top: 1px solid var(--line);
  scroll-margin-top: 1.25rem;
}

.page-faq .faq-block h2 {
  margin: 0.3rem 0 1.2rem;
  font-size: clamp(1.4rem, 4.6vw, 2rem);
  font-weight: 450;
  letter-spacing: 0.01em;
  color: var(--paper);
}

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

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  border-left: 3px solid transparent;
  transition: background var(--dur) var(--ease), border-left-color var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  background: var(--ink-800);
  border-left-color: var(--signal);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 0.92rem 0.85rem;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  font-size: 0.96rem;
  line-height: 1.6;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--teal-glow);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  background: var(--faq-wash);
}

.page-faq .faq-a {
  padding: 0 0.95rem 1.1rem 1rem;
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.85;
}

.page-faq .faq-a p {
  margin: 0 0 0.7rem;
  max-width: var(--measure);
}

.page-faq .faq-a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-path {
  display: inline-block;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--line);
  background: rgba(11, 22, 38, 0.55);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--paper);
  line-height: 1.6;
}

.page-faq .faq-path .mono {
  color: var(--teal);
  margin-right: 0.4rem;
  letter-spacing: 0.1em;
}

.page-faq .faq-a .tag--signal,
.page-faq .faq-a .tag--teal,
.page-faq .faq-a .tag--amber {
  font-size: 0.74rem;
  vertical-align: baseline;
}

/* ---- 客服 ---- */
.page-faq .faq-support {
  padding-block: 3rem;
  scroll-margin-top: 1.25rem;
}

.page-faq .faq-support-grid {
  display: grid;
  gap: 2rem;
}

.page-faq .faq-support-copy .display--tight {
  margin: 0.35rem 0 0.9rem;
  font-size: clamp(1.5rem, 4.8vw, 2.2rem);
  font-weight: 450;
  color: var(--paper);
}

.page-faq .faq-support-copy .prose {
  max-width: var(--measure);
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.85;
  margin: 0 0 1.75rem;
}

.page-faq .faq-contact-list {
  display: grid;
  gap: 0.85rem;
  margin: 0 0 1.6rem;
  padding: 0;
}

.page-faq .faq-contact-row {
  padding-left: 0.85rem;
  border-left: 2px solid var(--line);
}

.page-faq .faq-contact-row dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--teal);
  margin-bottom: 0.15rem;
}

.page-faq .faq-contact-row dd {
  margin: 0;
  color: var(--paper);
  font-size: 0.96rem;
  line-height: 1.65;
  word-break: break-word;
}

.page-faq .faq-copy-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0 0 2rem;
}

.page-faq .faq-copy[data-copied="true"] {
  border-color: var(--teal);
  color: var(--teal-glow);
}

.page-faq .faq-prep {
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  background: rgba(11, 22, 38, 0.5);
}

.page-faq .faq-prep h3 {
  margin: 0 0 0.7rem;
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--teal-glow);
}

.page-faq .faq-prep ul {
  margin: 0;
  padding-left: 1.05rem;
  color: var(--mist);
  font-size: 0.88rem;
  line-height: 1.9;
}

.page-faq .faq-prep li::marker {
  color: var(--signal);
}

.page-faq .faq-support-figure {
  margin: 0;
}

/* ---- 收尾 ---- */
.page-faq .faq-tail {
  padding-block: 2.6rem 3.4rem;
  border-top: 1px solid var(--line);
}

.page-faq .faq-tail-inner .display--tight {
  margin: 0 0 0.8rem;
  font-size: clamp(1.35rem, 4.4vw, 1.85rem);
  font-weight: 450;
  color: var(--paper);
}

.page-faq .faq-tail-inner .prose {
  max-width: var(--measure);
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.85;
  margin: 0 0 1.4rem;
}

.page-faq .faq-tail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.4rem;
}

.page-faq .faq-tail-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.15rem;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-tail-links a:hover,
.page-faq .faq-tail-links a:focus-visible {
  color: var(--teal-glow);
  border-bottom-color: var(--teal-glow);
}

@media (min-width: 720px) {
  .page-faq .faq-links {
    grid-template-columns: 1fr 0.78fr;
    column-gap: 1.6rem;
  }

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

  .page-faq .faq-a {
    padding-left: 1.15rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 900px) {
  .page-faq .page-faq-head {
    padding-block: 1.75rem 3.4rem;
  }

  .page-faq .faq-index-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 3rem;
  }

  .page-faq .faq-support-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    align-items: start;
    gap: 3rem;
  }

  .page-faq .faq-support-figure {
    position: sticky;
    top: 2rem;
  }

  .page-faq .faq-block,
  .page-faq .faq-support,
  .page-faq .faq-tail {
    scroll-margin-top: 2rem;
  }
}

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