.page-faq {
  --faq-rail-w: 250px;
  --faq-qtext-size: clamp(0.98rem, 1.6vw + 0.6rem, 1.1rem);
  position: relative;
  padding-bottom: var(--fh-section);
  background:
    radial-gradient(1100px 520px at 10% -8%, rgba(255, 77, 26, 0.16), transparent 62%),
    radial-gradient(900px 500px at 98% 2%, rgba(30, 144, 255, 0.14), transparent 60%);
}

/* 面包屑 */
.page-faq .fh-breadcrumb {
  padding-top: clamp(1rem, 3vw, 1.6rem);
}

/* ===== 首屏 ===== */
.page-faq .page-faq__hero {
  padding-top: clamp(1rem, 3vw, 1.6rem);
}

.page-faq .page-faq__hero-grid {
  display: grid;
  gap: var(--fh-gap);
}

.page-faq .page-faq__hero-copy {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--fh-line-strong);
  border-radius: var(--fh-radius);
  padding: clamp(1.35rem, 4vw, 2.6rem);
  background: linear-gradient(158deg, rgba(18, 11, 46, 0.78), rgba(7, 6, 15, 0.42));
}

.page-faq .page-faq__hero-copy::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: linear-gradient(180deg, var(--fh-orange), var(--fh-red) 46%, var(--fh-lime));
}

.page-faq .page-faq__hero-copy::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 12px;
  background: repeating-linear-gradient(90deg, var(--fh-line-strong) 0 1px, transparent 1px 26px);
  opacity: 0.75;
}

.page-faq .page-faq__hero-copy h1 {
  margin: 0.7rem 0 0;
  font-family: var(--fh-font-display);
  font-weight: 900;
  font-size: clamp(2.05rem, 6.2vw, 3.9rem);
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--fh-ink);
}

.page-faq .page-faq__hero-copy .fh-lede {
  margin-top: 1rem;
  max-width: 46ch;
}

/* 搜索区 */
.page-faq .page-faq__search {
  margin-top: clamp(1.2rem, 3.4vw, 1.9rem);
  display: grid;
  gap: 0.25rem;
  padding: 0.9rem 1.1rem 0.75rem;
  border: 1px solid rgba(200, 255, 61, 0.38);
  border-radius: var(--fh-radius-sm);
  background: rgba(7, 6, 15, 0.66);
  box-shadow: 0 18px 42px -30px rgba(200, 255, 61, 0.7);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .page-faq__search:focus-within {
  border-color: var(--fh-lime);
  box-shadow: 0 0 0 1px rgba(200, 255, 61, 0.26), 0 22px 48px -30px rgba(200, 255, 61, 0.9);
}

.page-faq .page-faq__search-label {
  font-family: var(--fh-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fh-lime);
}

.page-faq .page-faq__search-input {
  width: 100%;
  padding: 0.4rem 0;
  border: 0;
  background: transparent;
  color: var(--fh-ink);
  font-family: var(--fh-font-mono);
  font-size: clamp(1rem, 2.4vw, 1.12rem);
  outline: none;
  min-width: 0;
}

.page-faq .page-faq__search-input::placeholder {
  color: var(--fh-muted-soft);
}

.page-faq .page-faq__search-hint {
  margin: 0;
  font-size: var(--fh-note);
  color: var(--fh-muted-soft);
}

/* 首屏数据 */
.page-faq .page-faq__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1rem, 4vw, 2.4rem);
  margin: clamp(1.3rem, 3.4vw, 2rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .page-faq__stats .fh-metric {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-faq .page-faq__stats .fh-metric__value {
  font-family: var(--fh-font-mono);
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  font-weight: 700;
  color: var(--fh-orange);
  line-height: 1;
}

.page-faq .page-faq__stats .fh-metric__unit {
  font-size: 0.72em;
  color: var(--fh-blue);
}

.page-faq .page-faq__stats .fh-metric__label {
  font-size: var(--fh-note);
  color: var(--fh-muted);
}

.page-faq .page-faq__hero-figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--fh-line);
  border-radius: var(--fh-radius);
  background: rgba(18, 11, 46, 0.5);
}

.page-faq .page-faq__hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ===== 正文双栏 ===== */
.page-faq .page-faq__layout {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
  margin-top: var(--fh-section);
}

/* 左栏分类 */
.page-faq .page-faq__rail-title {
  margin: 0 0 0.7rem;
  font-family: var(--fh-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fh-muted-soft);
}

.page-faq .page-faq__rail-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .page-faq__rail-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--fh-line);
  border-radius: 999px;
  color: var(--fh-silver);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.page-faq .page-faq__rail-link:hover,
.page-faq .page-faq__rail-link:focus-visible {
  color: var(--fh-ink);
  border-color: rgba(255, 77, 26, 0.66);
  background: rgba(255, 77, 26, 0.09);
}

.page-faq .page-faq__rail-num {
  font-family: var(--fh-font-mono);
  font-size: 0.72rem;
  color: var(--fh-orange);
}

.page-faq .page-faq__rail-cta {
  margin-top: 1rem;
}

/* ===== 分类区块 ===== */
.page-faq .page-faq__group {
  scroll-margin-top: 7rem;
}

.page-faq .page-faq__group + .page-faq__group {
  margin-top: clamp(2.4rem, 6vw, 3.8rem);
}

.page-faq .page-faq__group-head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--fh-line);
}

.page-faq .page-faq__group-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: clamp(70px, 22%, 160px);
  height: 2px;
  background: linear-gradient(90deg, var(--fh-orange), rgba(30, 144, 255, 0));
}

.page-faq .page-faq__group-num {
  font-family: var(--fh-font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--fh-orange);
}

.page-faq .page-faq__group-title {
  margin: 0;
  font-family: var(--fh-font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--fh-ink);
}

/* 分类配图 */
.page-faq .page-faq__figure {
  margin: clamp(1.1rem, 3vw, 1.6rem) 0 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--fh-line);
  border-radius: var(--fh-radius);
}

.page-faq .page-faq__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  max-height: 330px;
  object-fit: cover;
}

.page-faq .page-faq__figure .fh-media__caption {
  display: block;
  padding: 0.7rem 1rem 0.85rem;
  font-size: var(--fh-note);
  color: var(--fh-muted);
  background: rgba(7, 6, 15, 0.6);
}

/* ===== 手风琴 ===== */
.page-faq .page-faq__list {
  margin: 0.4rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .fh-panel {
  position: relative;
  margin-top: 0.6rem;
  border: 1px solid var(--fh-line);
  border-radius: var(--fh-radius-sm);
  background: linear-gradient(150deg, rgba(18, 11, 46, 0.55), rgba(7, 6, 15, 0.3));
  transition: border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .fh-panel:hover {
  border-color: var(--fh-line-strong);
}

.page-faq .fh-panel:has(.fh-panel__trigger[aria-expanded="true"]) {
  border-color: rgba(30, 144, 255, 0.6);
  background: linear-gradient(150deg, rgba(30, 144, 255, 0.12), rgba(7, 6, 15, 0.42));
  box-shadow: 0 22px 46px -34px rgba(30, 144, 255, 0.9);
}

.page-faq .fh-panel__trigger {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.8rem;
  padding: clamp(0.9rem, 2.4vw, 1.15rem) clamp(0.95rem, 2.6vw, 1.35rem);
  border: 0;
  background: none;
  color: var(--fh-ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-faq .fh-panel__trigger:focus-visible {
  outline: 2px solid var(--fh-lime);
  outline-offset: -2px;
  border-radius: var(--fh-radius-sm);
}

.page-faq .page-faq__qnum {
  font-family: var(--fh-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--fh-blue);
}

.page-faq .page-faq__qtext {
  font-size: var(--faq-qtext-size);
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .fh-panel__icon {
  flex: none;
  width: 1.7rem;
  height: 1.7rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--fh-line-strong);
  border-radius: 50%;
  font-family: var(--fh-font-mono);
  font-size: 0.95rem;
  line-height: 1;
  color: var(--fh-lime);
  transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.page-faq .fh-panel__trigger[aria-expanded="true"] .fh-panel__icon {
  transform: rotate(135deg);
  border-color: var(--fh-lime);
  background: rgba(200, 255, 61, 0.16);
}

.page-faq .fh-panel__body {
  padding: 0 clamp(0.95rem, 2.6vw, 1.35rem) clamp(1rem, 2.8vw, 1.3rem)
           calc(clamp(0.95rem, 2.6vw, 1.35rem) + 2.6rem);
  border-top: 1px dashed var(--fh-line);
  font-size: var(--fh-body);
  line-height: 1.75;
  color: var(--fh-muted);
}

.page-faq .fh-panel__body p {
  margin: 0.85rem 0 0;
}

.page-faq .fh-panel__body .fh-link {
  color: var(--fh-blue);
}

/* 无脚本时全部展开；有脚本时按 aria-expanded 折叠 */
.fh-js .page-faq .fh-panel__trigger[aria-expanded="false"] ~ .fh-panel__body {
  display: none;
}

/* ===== 兜底联系区 ===== */
.page-faq .page-faq__help {
  position: relative;
  overflow: hidden;
  margin-top: clamp(2.6rem, 6vw, 4rem);
  padding: clamp(1.5rem, 4vw, 2.6rem);
  border: 1px solid rgba(200, 255, 61, 0.34);
  border-radius: var(--fh-radius);
  background: linear-gradient(140deg, rgba(200, 255, 61, 0.1), rgba(18, 11, 46, 0.78) 46%, rgba(7, 6, 15, 0.88));
}

.page-faq .page-faq__help::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 77, 26, 0.42), transparent 66%);
  pointer-events: none;
}

.page-faq .page-faq__help h2 {
  position: relative;
  margin: 0.6rem 0 0;
  font-family: var(--fh-font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  line-height: 1.16;
  color: var(--fh-ink);
}

.page-faq .page-faq__help-text {
  position: relative;
  margin: 0.9rem 0 0;
  max-width: 62ch;
  font-size: var(--fh-body);
  line-height: 1.75;
  color: var(--fh-muted);
}

.page-faq .page-faq__help-meta {
  position: relative;
  display: grid;
  gap: 0.9rem;
  margin: 1.4rem 0 0;
}

.page-faq .page-faq__help-meta dt {
  font-family: var(--fh-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fh-lime);
}

.page-faq .page-faq__help-meta dd {
  margin: 0.25rem 0 0;
  font-size: 0.98rem;
  color: var(--fh-ink);
  word-break: break-word;
}

.page-faq .page-faq__help-cta {
  position: relative;
  margin-top: 1.5rem;
}

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

@media (min-width: 900px) {
  .page-faq .page-faq__hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }

  .page-faq .page-faq__hero-figure {
    align-self: stretch;
  }

  .page-faq .page-faq__hero-figure img {
    height: 100%;
    aspect-ratio: auto;
    min-height: 320px;
  }

  .page-faq .page-faq__stats {
    gap: 2.6rem;
  }
}

@media (min-width: 1000px) {
  .page-faq .page-faq__layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .page-faq__rail {
    position: sticky;
    top: 6.5rem;
  }

  .page-faq .page-faq__rail-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0.15rem;
  }

  .page-faq .page-faq__rail-link {
    border: 0;
    border-left: 2px solid var(--fh-line);
    border-radius: 0 var(--fh-radius-sm) var(--fh-radius-sm) 0;
    padding: 0.6rem 0.85rem;
    font-size: 0.88rem;
  }

  .page-faq .page-faq__rail-link:hover,
  .page-faq .page-faq__rail-link:focus-visible {
    border-left-color: var(--fh-orange);
    background: rgba(255, 255, 255, 0.045);
    transform: translateX(4px);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .fh-panel__icon,
  .page-faq .fh-panel,
  .page-faq .page-faq__rail-link,
  .page-faq .page-faq__search {
    transition: none;
  }

  .page-faq .page-faq__rail-link:hover,
  .page-faq .page-faq__rail-link:focus-visible {
    transform: none;
  }
}