.page-faq {
  padding-bottom: 84px;
}

.page-faq .breadcrumb {
  padding-top: 28px;
  font-size: 0.82rem;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--muted);
}

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

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 40px 0 44px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -18%;
  top: -46%;
  width: min(620px, 86vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(63, 240, 228, 0.16), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin: 0 0 16px;
  text-transform: uppercase;
}

.page-faq h1 {
  margin: 0 0 20px;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text);
}

.page-faq .lede {
  margin: 0;
  max-width: 42em;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-hero__tags .pill {
  text-decoration: none;
  padding: 8px 16px;
  font-size: 0.8rem;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-faq .faq-hero__tags .pill:hover {
  background: rgba(63, 240, 228, 0.14);
  transform: translateY(-2px);
}

/* ---------- 主栅格 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: 28px;
  padding-top: 36px;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--panel);
  color: var(--muted);
  font-size: 0.8rem;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease),
    background 0.22s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(63, 240, 228, 0.08);
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-stream {
  min-width: 0;
}

.page-faq .faq-block {
  padding-bottom: 44px;
  scroll-margin-top: 96px;
}

.page-faq .faq-block + .faq-block {
  border-top: 1px solid var(--line);
  padding-top: 40px;
}

.page-faq .faq-block__head {
  margin-bottom: 22px;
}

.page-faq .faq-block__num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-block h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 4vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-block__desc {
  margin: 0;
  max-width: 40em;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-block__desc a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 240, 228, 0.4);
}

.page-faq .faq-block__desc a:hover {
  color: var(--cyan-mist);
}

.page-faq .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  font-size: 0.95em;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(63, 240, 228, 0.05), transparent 42%);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 8px 18px 14px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-faq .faq-item__mark::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .faq-item__mark::after {
  width: 1.5px;
  height: 10px;
}

.page-faq .faq-item[open] .faq-item__mark {
  border-color: var(--cyan);
  background: rgba(63, 240, 228, 0.14);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__q {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text);
  transition: color 0.22s var(--ease);
}

.page-faq .faq-item summary:hover .faq-item__q {
  color: var(--cyan-mist);
}

.page-faq .faq-item__answer {
  padding: 0 8px 22px 50px;
  animation: faqAnswer 0.28s var(--ease) both;
}

@keyframes faqAnswer {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-item__answer p {
  margin: 0;
  max-width: 38em;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-item__answer a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 240, 228, 0.4);
}

.page-faq .faq-item__answer a:hover {
  color: var(--cyan-mist);
}

.page-faq .steps {
  counter-reset: step;
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .steps li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  align-items: baseline;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

/* ---------- 图 ---------- */
.page-faq .faq-block__figure {
  margin: 24px 0 0;
}

.page-faq .faq-block__figure--top {
  margin: 0 0 26px;
}

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

.page-faq .media-frame__caption {
  margin-top: 10px;
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-help__grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-help__card {
  padding: 22px;
}

.page-faq .faq-help__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-faq .faq-help__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--text);
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-help__note {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-help__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq {
    padding-bottom: 108px;
  }

  .page-faq .breadcrumb {
    padding-top: 36px;
  }

  .page-faq .faq-hero {
    padding: 56px 0 56px;
  }

  .page-faq .faq-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 48px;
    padding-top: 52px;
  }

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

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 4px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-index__list a {
    justify-content: space-between;
    width: 100%;
    padding: 11px 16px;
    border-color: transparent;
    background: transparent;
    border-radius: var(--radius-pill);
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    border-color: var(--line);
    background: var(--panel);
  }

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

@media (min-width: 1140px) {
  .page-faq .faq-block__body--split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-block__body--split .faq-block__figure {
    margin-top: 8px;
  }

  .page-faq .faq-block__body--split .faq-item__answer {
    padding-right: 0;
  }
}

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

  .page-faq .faq-hero__tags .pill:hover {
    transform: none;
  }

  .page-faq .faq-item,
  .page-faq .faq-item__mark,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after {
    transition: none;
  }
}