.page-faq {
  --faq-rail: 2.2rem;
  --faq-line: var(--ink-700);
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  padding: 1.1rem 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--hair);
}

.page-faq .breadcrumb span[aria-hidden="true"] {
  margin: 0 0.5rem;
  color: var(--ink-700);
}

/* ---------- 首屏：斜切光块 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(140% 120% at 100% 0%, rgba(216, 168, 78, 0.16), transparent 58%),
    linear-gradient(155deg, var(--ink-800) 0%, var(--ink-900) 68%);
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -58%;
  right: -18%;
  width: 64%;
  height: 216%;
  background: linear-gradient(215deg, rgba(216, 168, 78, 0.22), rgba(55, 191, 174, 0.10) 42%, transparent 72%);
  transform: rotate(16deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding: 1.75rem 0 2.25rem;
}

.page-faq .faq-hero__kicker {
  color: var(--gold);
}

.page-faq .faq-hero__title {
  margin: 0.55rem 0 0.9rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 9vw, 4.75rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  max-width: 48ch;
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hero__meta {
  margin: 1.25rem 0 0;
  color: var(--mist);
}

/* ---------- 分组索引条 ---------- */

.page-faq .faq-nav {
  background: rgba(10, 46, 39, 0.72);
  border-bottom: 1px solid var(--ink-700);
}

.page-faq .faq-nav__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-nav__item {
  border-right: 1px solid var(--ink-700);
}

.page-faq .faq-nav__item:last-child {
  grid-column: 1 / -1;
  border-right: 0;
}

.page-faq .faq-nav__link {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.85rem 0.95rem;
  font-size: 0.9375rem;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-nav__num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  background: var(--glass);
  border-bottom-color: var(--gold);
  color: var(--gold-soft);
}

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

/* ---------- 分组容器与底纹 ---------- */

.page-faq .faq-groups {
  position: relative;
  padding: 0.5rem 0 2.5rem;
}

.page-faq .faq-texture {
  position: absolute;
  inset: 0;
  margin: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.07;
  filter: saturate(0.55);
}

.page-faq .faq-groups > .wrap {
  position: relative;
  z-index: 1;
}

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  padding: 2.5rem 0 1.25rem;
}

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

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  margin-bottom: 1.5rem;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-group__hint {
  flex: 1 1 100%;
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure {
  margin: 0 0 1.75rem;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ink-700);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-list {
  border-top: 1px solid var(--ink-700);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--ink-700);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(216, 168, 78, 0.07), transparent 72%);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: var(--faq-rail) 1fr 16px;
  align-items: start;
  gap: 0.75rem;
  padding: 1.05rem 0;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-item__q:hover .faq-item__text {
  color: var(--gold-soft);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 3px;
}

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  padding-top: 0.35rem;
}

.page-faq .faq-item__text {
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 0.52rem;
  justify-self: end;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--gold);
  transition: transform 0.2s var(--ease);
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
}

.page-faq .faq-item__body {
  position: relative;
  padding: 0 0 1.5rem var(--faq-rail);
}

.page-faq .faq-item__body::before {
  content: "";
  position: absolute;
  left: 1.1rem;
  top: 0.1rem;
  bottom: 1.2rem;
  width: 1px;
  background: linear-gradient(var(--gold), rgba(216, 168, 78, 0.04));
}

.page-faq .faq-item__body p {
  max-width: 66ch;
  margin: 0 0 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--paper);
}

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

.page-faq .faq-note {
  padding-left: 0.85rem;
  border-left: 2px solid var(--ink-700);
  font-size: 0.875rem !important;
  color: var(--mist) !important;
}

.page-faq .faq-link {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--hair);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

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

/* ---------- 兜底路径 ---------- */

.page-faq .faq-support {
  margin: 2.5rem 0 1rem;
  padding: 1.75rem 1.25rem;
  border: 1px solid var(--hair);
  background:
    linear-gradient(150deg, rgba(255, 107, 74, 0.09), rgba(10, 46, 39, 0.94) 58%),
    var(--ink-800);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

.page-faq .faq-support__title {
  margin: 0.6rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 2rem);
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .faq-support__list {
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
}

.page-faq .faq-support__list li {
  position: relative;
  padding-left: 1.35rem;
  margin-bottom: 0.6rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-support__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--data);
}

.page-faq .faq-support__note {
  max-width: 62ch;
  margin: 0 0 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
}

.page-faq .faq-copy {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.95rem;
  border: 1px solid var(--ink-700);
  background: var(--glass);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  border-color: var(--gold);
  background: var(--glass-strong);
}

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

.page-faq .faq-copy__state {
  color: var(--gold);
}

.page-faq .faq-support__phone {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq {
    --faq-rail: 2.6rem;
  }

  .page-faq .faq-hero__inner {
    padding: 2.5rem 0 3rem;
  }

  .page-faq .faq-support {
    padding: 2.25rem 2rem;
  }
}

@media (min-width: 900px) {
  .page-faq {
    --faq-rail: 3rem;
  }

  .page-faq .faq-nav__list {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-faq .faq-nav__item:last-child {
    grid-column: auto;
  }

  .page-faq .faq-nav__item:last-child {
    border-right: 0;
  }

  .page-faq .faq-group {
    padding: 3.5rem 0 2rem;
  }

  .page-faq .faq-group__head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0 1.25rem;
    align-items: baseline;
    margin-bottom: 2rem;
  }

  .page-faq .faq-group__num {
    grid-row: 1 / span 2;
    padding-top: 0.75rem;
  }

  .page-faq .faq-group__hint {
    grid-column: 2;
    max-width: 60ch;
    margin-top: 0.5rem;
  }

  .page-faq .faq-item__q {
    padding: 1.25rem 0;
    font-size: 1.0625rem;
  }

  .page-faq .faq-support {
    margin: 3.5rem 0 2rem;
    padding: 2.75rem 2.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-item__q,
  .page-faq .faq-item__text,
  .page-faq .faq-nav__link,
  .page-faq .faq-copy,
  .page-faq .breadcrumb a,
  .page-faq .faq-link {
    transition: none;
  }
}