.page-faq {
  display: block;
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

/* ---------- 页面上下文条 ---------- */
.page-faq .faq-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 18px 0 16px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--slate-500);
}

.page-faq .breadcrumb .crumb {
  color: var(--slate-500);
  text-decoration: none;
}

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

.page-faq .breadcrumb a.crumb:hover,
.page-faq .breadcrumb a.crumb:focus-visible {
  color: var(--turf-400);
}

.page-faq .faq-context__stamp {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--turf-400);
  border: 1px solid var(--line);
  padding: 6px 10px;
  background: var(--panel-800);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 26px;
  padding: clamp(26px, 5vw, 56px) 0 clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--turf-400);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 7.4vw, 4.4rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--mist-050);
}

.page-faq .faq-hero__lede {
  max-width: 46ch;
  margin: 18px 0 0;
  font-size: 16.5px;
  line-height: 1.78;
  color: rgba(233, 243, 239, .82);
}

.page-faq .faq-scale {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-faq .faq-scale__cell {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--panel-800);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist-050);
}

.page-faq .faq-scale__cell i {
  width: 6px;
  height: 6px;
  display: inline-block;
  background: var(--turf-400);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--stand-900);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

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

.page-faq .faq-hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(138, 163, 156, .14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 163, 156, .14) 1px, transparent 1px);
  background-size: 44px 44px;
}

.page-faq .faq-hero__cap {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate-500);
}

/* ---------- 主体：索引 + 问答组 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 26px;
  padding-top: 8px;
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--slate-500);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__item {
  flex: 0 0 auto;
  min-width: 190px;
  scroll-snap-align: start;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--panel-800);
  text-decoration: none;
  color: var(--mist-050);
  transition: border-color .2s ease, background .2s ease;
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  border-color: var(--turf-400);
  background: var(--stand-900);
}

.page-faq .faq-index__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--turf-400);
  padding-top: 3px;
}

.page-faq .faq-index__body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-faq .faq-index__label {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-index__note {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--slate-500);
}

.page-faq .faq-groups {
  display: grid;
  gap: clamp(28px, 4vw, 46px);
  min-width: 0;
}

.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--ink-950);
  background: var(--turf-400);
  padding: 6px 14px 6px 10px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.15;
  letter-spacing: .01em;
  color: var(--mist-050);
}

.page-faq .faq-group__hint {
  margin: 10px 0 16px;
  max-width: 54ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-500);
}

.page-faq .faq-group__cols {
  display: grid;
  gap: 22px;
  min-width: 0;
}

.page-faq .faq-group__col {
  min-width: 0;
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(61, 240, 138, .07), rgba(61, 240, 138, 0) 48%);
  box-shadow: inset 2px 0 0 var(--turf-400);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 34px 15px 12px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--mist-050);
  transition: color .2s ease;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--slate-500);
  transition: color .2s ease;
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
  color: var(--turf-400);
}

.page-faq .faq-item__mark {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--slate-500);
}

.page-faq .faq-item[open] .faq-item__mark {
  color: var(--turf-400);
}

.page-faq .faq-item__text {
  min-width: 0;
}

.page-faq .faq-item__a {
  padding: 0 34px 16px 12px;
  animation: faqIn .3s cubic-bezier(.2, .8, .2, 1) both;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(233, 243, 239, .8);
}

.page-faq .faq-item__a p + p {
  margin-top: 8px;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  color: var(--turf-400);
}

.page-faq .faq-aside-note {
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-500);
}

.page-faq .faq-aside-note a {
  color: var(--mist-050);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-aside-note a:hover,
.page-faq .faq-aside-note a:focus-visible {
  color: var(--turf-400);
  border-bottom-color: var(--turf-400);
}

/* ---------- 组内配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--stand-900);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}

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

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate-500);
}

/* ---------- 联络块 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(34px, 5vw, 64px);
  padding: clamp(22px, 3.6vw, 40px);
  border: 1px solid var(--line);
  background: var(--gradient-stand);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 22px;
  min-width: 0;
}

.page-faq .faq-contact__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.15;
  color: var(--mist-050);
}

.page-faq .faq-contact__text {
  margin: 0;
  max-width: 50ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(233, 243, 239, .82);
}

.page-faq .faq-contact__cta {
  margin: 20px 0 0;
}

.page-faq .faq-contact__list {
  margin: 0;
  display: grid;
  gap: 0;
  min-width: 0;
}

.page-faq .faq-contact__row {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__k {
  flex: 0 0 56px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--slate-500);
}

.page-faq .faq-contact__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--mist-050);
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* ---------- 相关页面 ---------- */
.page-faq .faq-jump {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.page-faq .faq-jump__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--slate-500);
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  background: var(--panel-800);
  color: var(--mist-050);
  text-decoration: none;
  font-size: 13px;
  transition: border-color .2s ease, color .2s ease;
}

.page-faq .faq-jump__link::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--slate-500);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--turf-400);
  color: var(--turf-400);
}

/* ---------- 动效 ---------- */
@keyframes faqIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
    align-items: end;
  }

  .page-faq .faq-group__cols {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .9fr);
    align-items: start;
  }

  .page-faq .faq-figure {
    position: sticky;
    top: 104px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    scroll-snap-type: none;
  }

  .page-faq .faq-index__item {
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-index__item,
  .page-faq .faq-item__q::after,
  .page-faq .faq-jump__link {
    transition: none;
  }
}