.page-faq {
  --faq-ring: rgba(41, 224, 208, 0.16);
  --faq-warm: rgba(255, 106, 31, 0.14);
  --faq-soft: rgba(34, 48, 74, 0.55);
  padding-bottom: calc(4rem + var(--bar-h));
}

@media (min-width: 1024px) {
  .page-faq {
    padding-bottom: 5rem;
  }
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(1.5rem, 5vw, 3.25rem) 0 clamp(1.75rem, 4vw, 3rem);
  border-bottom: 1px solid var(--faq-soft);
  background:
    radial-gradient(120% 90% at 8% 0%, var(--faq-ring), transparent 58%),
    radial-gradient(90% 80% at 96% 6%, var(--faq-warm), transparent 62%);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(1rem, 3vw, 1.75rem);
}

.page-faq .faq-hero h1 {
  margin: 0.5rem 0 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-size: clamp(1.85rem, 5.4vw, 3.25rem);
  color: var(--white);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: clamp(0.9rem, 2.5vw, 1.35rem) 0 0;
  max-width: 46rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 0.9rem;
  margin: clamp(1.4rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stat {
  flex: 1 1 9rem;
  min-width: 8.5rem;
  padding: 0.85rem 1rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(158deg, rgba(16, 26, 46, 0.9), rgba(7, 13, 26, 0.62));
  box-shadow: var(--shadow-1);
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.4vw, 1.7rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--accent);
}

.page-faq .faq-stat__num--cyan {
  color: var(--cyan);
}

.page-faq .faq-stat__num--clay {
  color: var(--clay);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 工作台布局 ---------- */
.page-faq .faq-workbench {
  padding-top: clamp(1.75rem, 4.5vw, 3rem);
}

.page-faq .faq-workbench__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

@media (min-width: 960px) {
  .page-faq .faq-workbench__grid {
    grid-template-columns: minmax(210px, 250px) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }
}

/* ---------- 分类锚点 ---------- */
.page-faq .faq-index {
  position: relative;
  min-width: 0;
}

.page-faq .faq-index__label {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 0.15rem;
  margin: 0;
  padding: 0 0 0.55rem;
  list-style: none;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list > li {
  flex: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.7rem 0.7rem;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--cyan);
  background: rgba(41, 224, 208, 0.05);
  outline: none;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--mist);
  opacity: 0.7;
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: 2rem;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 0.15rem;
    padding: 0;
    overflow: visible;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-index__link {
    padding: 0.6rem 0.95rem;
    border-bottom: 0;
    border-left: 2px solid transparent;
    margin-bottom: 0;
    margin-left: -1px;
    white-space: normal;
    font-size: 0.9375rem;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--cyan);
  }
}

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

.page-faq .faq-block {
  padding-top: clamp(1.75rem, 4vw, 2.75rem);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  border-top: 1px solid var(--faq-soft);
  scroll-margin-top: 5rem;
}

.page-faq .faq-flow > .faq-block:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.page-faq .faq-block__no {
  flex: none;
  padding: 0.15rem 0.55rem;
  border: 1px solid rgba(255, 106, 31, 0.42);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  font-size: clamp(1.2rem, 2.6vw, 1.7rem);
  color: var(--white);
}

.page-faq .faq-block__lead {
  margin: 0 0 1.25rem;
  max-width: 44rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-block__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: start;
}

@media (min-width: 880px) {
  .page-faq .faq-block--split .faq-block__body {
    grid-template-columns: minmax(0, 1fr) minmax(200px, 290px);
  }
}

/* ---------- 单条问答 ---------- */
.page-faq .qa {
  position: relative;
  margin-bottom: 0.6rem;
  border: 1px solid var(--faq-soft);
  border-radius: var(--r-md);
  overflow: hidden;
  background: linear-gradient(165deg, rgba(16, 26, 46, 0.82), rgba(7, 13, 26, 0.55));
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.28s var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(255, 106, 31, 0.32);
  background: linear-gradient(165deg, rgba(22, 34, 56, 0.92), rgba(9, 16, 30, 0.72));
}

.page-faq .qa[open]::before {
  transform: scaleY(1);
}

.page-faq .qa__q {
  position: relative;
  display: block;
  padding: 1rem 3rem 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
  transition: color 0.2s var(--ease);
}

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

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa__q::after {
  content: "";
  position: absolute;
  right: 1.35rem;
  top: 50%;
  width: 11px;
  height: 2px;
  margin-top: -1px;
  border-radius: 2px;
  background: var(--cyan);
  transition: background 0.2s var(--ease);
}

.page-faq .qa__q::before {
  content: "";
  position: absolute;
  right: calc(1.35rem + 4.5px);
  top: 50%;
  width: 2px;
  height: 11px;
  margin-top: -5.5px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-faq .qa[open] .qa__q::before {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa[open] .qa__q::after {
  background: var(--accent);
}

.page-faq .qa__a {
  padding: 0.9rem 1.15rem 1.2rem;
  border-top: 1px dashed var(--line);
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .qa__verdict {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  margin: 0;
  font-weight: 600;
  color: var(--white);
}

.page-faq .qa__tag {
  flex: none;
  padding: 0.1rem 0.45rem;
  border: 1px solid rgba(41, 224, 208, 0.4);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  font-weight: 500;
  color: var(--cyan);
}

.page-faq .qa__steps {
  display: grid;
  gap: 0.4rem;
  margin: 0.7rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: qstep;
}

.page-faq .qa__steps > li {
  display: grid;
  grid-template-columns: 1.85rem minmax(0, 1fr);
  gap: 0.3rem;
  align-items: baseline;
  font-size: 0.9375rem;
}

.page-faq .qa__steps > li::before {
  counter-increment: qstep;
  content: counter(qstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .qa__note {
  margin: 0.7rem 0 0;
  padding-left: 0.75rem;
  border-left: 2px solid var(--line);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure .figure__frame {
  position: relative;
  height: auto;
  aspect-ratio: auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
  box-shadow: var(--shadow-2);
}

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

.page-faq .faq-figure .figure__caption {
  margin-top: 0.6rem;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--mist);
}

@media (min-width: 880px) {
  .page-faq .faq-block--split .faq-figure .figure__frame {
    aspect-ratio: 5 / 6;
  }

  .page-faq .faq-block--split .faq-figure img {
    height: 100%;
  }
}

/* ---------- 联系区 ---------- */
.page-faq .faq-block--contact {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(110% 120% at 100% 0%, rgba(41, 224, 208, 0.08), transparent 58%),
    linear-gradient(160deg, rgba(16, 26, 46, 0.9), rgba(7, 13, 26, 0.7));
  margin-top: clamp(2rem, 4.5vw, 3rem);
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
  margin-top: 1.25rem;
}

@media (min-width: 720px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-contact__item {
  padding: 0.85rem 1rem;
  border: 1px solid var(--faq-soft);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-sm);
  background: rgba(3, 7, 16, 0.55);
  min-width: 0;
}

.page-faq .faq-contact__key {
  margin: 0;
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-contact__val {
  margin: 0.35rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-contact__hint {
  margin: 1rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--mist);
}

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

.page-faq .faq-contact__hint a:hover {
  color: var(--accent);
}