.page-faq {
  --faq-c: var(--pitch-light);
  padding-bottom: 4rem;
}

.page-faq .breadcrumbs {
  padding: 1rem 0 .25rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 1.25rem 0 2.25rem;
  background:
    radial-gradient(120% 100% at 84% -20%, rgba(95, 242, 194, .16), transparent 62%),
    linear-gradient(180deg, var(--pitch-deep) 0%, var(--pitch-mid) 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--csl) 0 50%, var(--epl) 50% 100%);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.75rem;
  align-items: end;
}

.page-faq .faq-hero h1 {
  margin: .55rem 0 .9rem;
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  line-height: 1.16;
  letter-spacing: .01em;
  font-weight: 700;
  color: var(--flood);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 48ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.5rem;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: .4rem .8rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--text-soft);
  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(--mint);
  border-color: var(--mint);
  background: rgba(95, 242, 194, .08);
}

.page-faq .faq-hero__media {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--pitch-mid);
}

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

.page-faq .faq-hero__badge {
  position: absolute;
  left: .75rem;
  bottom: .75rem;
  padding: .35rem .65rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(7, 18, 13, .74);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mint);
}

/* ---------- 左目录 右问答 ---------- */
.page-faq .faq-body {
  padding-top: 2.5rem;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  padding: 1rem 1.1rem;
}

.page-faq .faq-index__title {
  margin: 0 0 .8rem;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  padding: .38rem .65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-soft);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--flood);
  border-color: var(--mint);
  background: rgba(245, 240, 228, .06);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mint);
}

.page-faq .faq-index__name {
  font-size: 13px;
}

/* ---------- 问答组 ---------- */
.page-faq .faq-answers > * + * {
  margin-top: 2.75rem;
}

.page-faq .faq-group {
  border-top: 2px solid var(--faq-c);
  padding-top: 1.1rem;
  scroll-margin-top: 110px;
}

.page-faq .faq-group--reg { --faq-c: var(--csl); }
.page-faq .faq-group--follow { --faq-c: var(--mint); }
.page-faq .faq-group--schedule { --faq-c: var(--epl); }
.page-faq .faq-group--device { --faq-c: var(--pitch-light); }
.page-faq .faq-group--support { --faq-c: var(--flood); }

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  margin-bottom: .4rem;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: .16em;
  color: var(--faq-c);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  line-height: 1.25;
  letter-spacing: .01em;
  color: var(--flood);
}

.page-faq .faq-group__intro {
  margin: 0 0 1.1rem;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-faint);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  padding: .95rem 0;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--flood);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--faq-c);
}

.page-faq .faq-item[open] summary::after {
  content: "\2212";
}

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

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

.page-faq .faq-item__body {
  padding: 0 0 1.15rem;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-soft);
}

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

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

.page-faq .faq-item__body a:hover {
  color: var(--flood);
}

/* ---------- 步骤编号 ---------- */
.page-faq .faq-steps {
  counter-reset: step;
  display: grid;
  gap: .6rem;
  margin: .2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: .7rem;
  align-items: start;
}

.page-faq .faq-steps li::before {
  content: counter(step, decimal-leading-zero);
  padding: 1px 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.45;
  text-align: center;
  color: var(--mint);
}

/* ---------- 中段图 ---------- */
.page-faq .faq-figure {
  position: relative;
  margin: 0;
  max-width: 520px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--pitch-mid);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  max-width: 100%;
}

.page-faq .faq-figure figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: .6rem .85rem;
  background: linear-gradient(180deg, transparent, rgba(7, 18, 13, .88));
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-soft);
}

/* ---------- 客服渠道块 ---------- */
.page-faq .faq-contact {
  margin-top: 1.5rem;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--mint);
  border-radius: var(--radius);
  background: rgba(20, 77, 54, .55);
}

.page-faq .faq-contact .label {
  margin: 0;
  color: var(--text-faint);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: .45rem;
  margin: .65rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .25rem .8rem;
  font-size: 14px;
  color: var(--text-soft);
}

.page-faq .faq-contact__list .mono {
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--mint);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  margin: .8rem 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-faint);
}

/* ---------- 回到顶部 ---------- */
.page-faq .faq-top {
  margin: 0;
  text-align: right;
}

.page-faq .faq-top a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-faint);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-top a:hover,
.page-faq .faq-top a:focus-visible {
  color: var(--mint);
  border-color: var(--mint);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 3.5rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: .1rem;
  }

  .page-faq .faq-index__link {
    padding: .5rem .4rem;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: none;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--mint);
    background: rgba(245, 240, 228, .05);
  }

  .page-faq .faq-index__name {
    font-size: 14px;
  }

  .page-faq .faq-figure {
    max-width: 100%;
  }

  .page-faq .faq-figure img {
    aspect-ratio: 16 / 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .faq-index__link,
  .page-faq .faq-top a {
    transition: none;
  }
}