.page-faq {
  --faq-rail: 232px;
  --faq-line: rgba(244, 237, 227, .1);
  --faq-dim: rgba(244, 237, 227, .68);
  display: block;
  padding-bottom: 3.5rem;
  color: var(--paper);
  background:
    radial-gradient(115% 70% at 84% -8%, rgba(255, 90, 31, .2), transparent 62%),
    radial-gradient(80% 55% at 2% 6%, rgba(53, 208, 224, .09), transparent 58%),
    var(--ink);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: 1.5rem 0 1.25rem;
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 1.5rem;
}

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

.page-faq .faq-hero-copy .display {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 7vw, 3.5rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.02em;
  margin: .6rem 0 1rem;
  color: var(--white);
}

.page-faq .faq-hero-copy .lede {
  max-width: 56ch;
  color: var(--faq-dim);
  font-size: .97rem;
  line-height: 1.85;
  margin: 0 0 1.5rem;
}

.page-faq .faq-hero-actions {
  margin-bottom: 1.75rem;
}

.page-faq .faq-hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-faq .faq-hero-facts li {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  font-size: .88rem;
  color: var(--faq-dim);
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero-facts li .num {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--lava);
  min-width: 2.2rem;
  line-height: 1;
}

.page-faq .faq-hero-media .media-frame {
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid rgba(255, 90, 31, .3);
  box-shadow: var(--glow-lava);
}

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

.page-faq .faq-hero-cap {
  margin: .8rem 0 0;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--ash);
}

/* 场景主题带 */
.page-faq .faq-track {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  margin-top: 1rem;
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  background: rgba(18, 16, 14, .88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.page-faq .faq-track-inner {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-track-inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .48rem .9rem;
  border-radius: 999px;
  border: 1px solid rgba(244, 237, 227, .14);
  background: rgba(28, 25, 23, .7);
  color: var(--paper);
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .34s var(--ease), background .34s var(--ease), color .34s var(--ease);
}

.page-faq .faq-chip .num {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--flame);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--lava);
  background: rgba(255, 90, 31, .16);
  color: var(--white);
  outline: none;
}

/* 主体布局 */
.page-faq .faq-layout {
  display: grid;
  gap: 2rem;
  padding-top: 2.25rem;
}

.page-faq .faq-index {
  display: none;
}

.page-faq .faq-index-title {
  margin: 0 0 .85rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ash);
}

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

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: .55rem;
  padding: .48rem .6rem;
  border-left: 2px solid transparent;
  margin-left: -1px;
  color: var(--faq-dim);
  font-size: .88rem;
  text-decoration: none;
  transition: color .34s var(--ease), border-color .34s var(--ease), background .34s var(--ease);
}

.page-faq .faq-index-list a .num {
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--cyan);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--white);
  border-left-color: var(--lava);
  background: rgba(255, 90, 31, .09);
  outline: none;
}

.page-faq .faq-index-note {
  margin: 0;
  font-size: .78rem;
  line-height: 1.7;
  color: var(--ash);
}

/* 问答分区 */
.page-faq .faq-sec {
  padding-top: 2.25rem;
  margin-top: 2.25rem;
  border-top: 1px solid var(--faq-line);
  scroll-margin-top: calc(var(--header-h) + 4.6rem);
}

.page-faq .faq-body-col > .faq-sec:first-child {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}

.page-faq .faq-sec-head {
  margin-bottom: 1.4rem;
}

.page-faq .faq-coord {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  padding: .2rem .5rem;
  border-radius: 4px;
  background: var(--lava);
  color: var(--ink);
}

.page-faq .faq-sec-title {
  margin: .75rem 0 .5rem;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 4.6vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-faq .faq-sec-sub {
  margin: 0;
  max-width: 62ch;
  font-size: .93rem;
  line-height: 1.8;
  color: var(--faq-dim);
}

.page-faq .faq-sec-media {
  margin: 0 0 1.5rem;
}

.page-faq .faq-sec-media .media-frame {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--faq-line);
}

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

.page-faq .faq-media-cap {
  margin: .7rem 0 0;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--ash);
}

/* 折叠问答卡 */
.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, rgba(28, 25, 23, .92), rgba(18, 16, 14, .92));
  transition: border-color .34s var(--ease), box-shadow .34s var(--ease);
}

.page-faq .faq-item + .faq-item {
  margin-top: .65rem;
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 90, 31, .46);
  box-shadow: var(--glow-lava);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding: 1rem 1.05rem;
  cursor: pointer;
  list-style: none;
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
}

.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: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--lava);
  transition: color .34s var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "\2013";
  color: var(--cyan);
}

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--white);
  outline: none;
}

.page-faq .faq-item > summary:focus-visible {
  box-shadow: inset 0 0 0 2px var(--ice);
}

.page-faq .faq-q-idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  color: var(--cyan);
  padding-top: .2rem;
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-body {
  padding: 0 1.05rem 1.2rem;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--faq-dim);
  border-top: 1px solid rgba(244, 237, 227, .07);
  margin-top: .2rem;
  padding-top: 1rem;
}

.page-faq .faq-body p {
  margin: 0 0 .7rem;
}

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

.page-faq .faq-body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-body a:hover {
  color: var(--ice);
}

.page-faq .faq-steps {
  list-style: none;
  margin: .35rem 0 .8rem;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 1fr);
  gap: .6rem;
  align-items: start;
}

.page-faq .faq-steps li .num {
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 700;
  line-height: 1;
}

.page-faq .faq-tip {
  display: flex;
  gap: .6rem;
  align-items: flex-start;
  margin: .85rem 0 0;
  padding: .7rem .85rem;
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: rgba(53, 208, 224, .09);
  color: var(--ice);
  font-size: .86rem;
  line-height: 1.75;
}

/* 联系支持 */
.page-faq .faq-sec--contact .faq-contact {
  border-radius: var(--radius-l);
  padding: 1.4rem 1.15rem;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 34px 72px -42px rgba(0, 0, 0, .95);
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-faq .faq-contact-list li {
  display: grid;
  gap: .2rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid rgba(18, 16, 14, .12);
}

.page-faq .faq-contact-key {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: #7a6f62;
}

.page-faq .faq-contact-val {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-contact-val.num {
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

.page-faq .faq-contact-note p {
  margin: 0 0 1rem;
  font-size: .9rem;
  line-height: 1.8;
  color: #3a342e;
}

.page-faq .faq-contact-actions {
  gap: .6rem;
}

.page-faq .faq-contact-actions .btn {
  justify-content: center;
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 2.25rem 0 1.75rem;
  }

  .page-faq .faq-hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-faq .faq-hero-facts li {
    flex-direction: column;
    gap: .35rem;
    align-items: flex-start;
    border-bottom: 0;
    border-left: 2px solid rgba(255, 90, 31, .5);
    padding: 0 0 0 .8rem;
    font-size: .84rem;
  }

  .page-faq .faq-contact-list li {
    grid-template-columns: 8rem minmax(0, 1fr);
    align-items: baseline;
    gap: .8rem;
  }

  .page-faq .faq-sec {
    padding-top: 2.75rem;
    margin-top: 2.75rem;
  }

  .page-faq .faq-item > summary {
    padding: 1.15rem 1.35rem;
    font-size: 1.02rem;
  }

  .page-faq .faq-body {
    padding: 1rem 1.35rem 1.4rem;
  }

  .page-faq .faq-sec--contact .faq-contact {
    padding: 1.9rem 1.75rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
    gap: 3rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 3.5rem;
    padding-top: 3rem;
  }

  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 4.2rem);
    align-self: start;
  }

  .page-faq .faq-body-col {
    max-width: 78ch;
  }

  .page-faq .faq-sec {
    padding-top: 3.25rem;
    margin-top: 3.25rem;
  }

  .page-faq .faq-sec-media {
    margin-bottom: 1.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-index-list a,
  .page-faq .faq-item,
  .page-faq .faq-item > summary::after {
    transition: none;
  }
}