.page-faq {
  --faq-cut: 14px;
  --faq-cut-lg: 20px;
  --faq-rail-w: 236px;
  --faq-volt-soft: rgba(183, 255, 60, 0.08);
  --faq-line-soft: rgba(243, 239, 228, 0.14);
  color: var(--paper);
  background-color: var(--ink);
  padding-bottom: clamp(40px, 6vw, 88px);
  font-family: var(--font-body);
}

.page-faq .breadcrumb {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(14px, 2.4vw, 22px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background-color: var(--deep);
  background-image:
    repeating-linear-gradient(90deg, rgba(183, 255, 60, 0.05) 0 1px, transparent 1px 52px),
    repeating-linear-gradient(0deg, rgba(45, 125, 255, 0.06) 0 1px, transparent 1px 52px);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut-lg)) 0, 100% var(--faq-cut-lg), 100% 100%, var(--faq-cut-lg) 100%, 0 calc(100% - var(--faq-cut-lg)));
  overflow: hidden;
}

.page-faq .faq-hero__copy {
  padding: clamp(20px, 4vw, 44px);
  border-left: 4px solid var(--volt);
  min-width: 0;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  color: var(--volt);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 5.6vw, 3.3rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 48ch;
  font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
  line-height: 1.8;
  color: rgba(243, 239, 228, 0.84);
}

.page-faq .faq-hero__jump {
  margin-top: clamp(18px, 3vw, 26px);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-hero__note {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--fog);
}

.page-faq .faq-hero__media {
  position: relative;
  min-width: 0;
  min-height: 200px;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.05);
}

/* ---------- 双栏布局 ---------- */
.page-faq .faq-layout {
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 28px);
}

/* ---------- 分类轨道 ---------- */
.page-faq .faq-rail__inner {
  border: 1px solid var(--line);
  background-color: var(--indigo);
  padding: 16px;
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

.page-faq .faq-rail__label {
  margin: 0;
  color: var(--fog);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--paper);
  text-decoration: none;
  font-size: 0.9375rem;
  line-height: 1.4;
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-left-color: var(--volt);
  background-color: var(--faq-volt-soft);
  color: var(--volt);
}

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

.page-faq .faq-rail__num {
  color: var(--volt);
  font-size: 0.75rem;
  flex: 0 0 auto;
}

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

.page-faq .faq-rail__figure {
  margin: 18px 0 0;
}

.page-faq .faq-rail__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
}

.page-faq .faq-rail__figure .media-caption {
  margin-top: 8px;
  font-size: 0.75rem;
  color: var(--fog);
  line-height: 1.5;
}

/* ---------- 问答分类 ---------- */
.page-faq .faq-cats {
  display: grid;
  gap: clamp(24px, 4vw, 36px);
  min-width: 0;
}

.page-faq .faq-cat {
  --cat: var(--volt);
  scroll-margin-top: 76px;
  min-width: 0;
}

.page-faq .faq-cat:nth-of-type(2) { --cat: var(--sky); }
.page-faq .faq-cat:nth-of-type(3) { --cat: var(--amber); }
.page-faq .faq-cat:nth-of-type(4) { --cat: var(--volt); }
.page-faq .faq-cat:nth-of-type(5) { --cat: var(--sky); }
.page-faq .faq-cat:nth-of-type(6) { --cat: var(--amber); }

.page-faq .faq-cat:target .faq-cat__head {
  background-color: rgba(7, 42, 43, 0.7);
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 0 0 12px;
  border-bottom: 2px solid var(--cat);
  transition: background-color 0.18s var(--ease);
}

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

.page-faq .faq-cat__num {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  line-height: 1;
  color: var(--cat);
  letter-spacing: -0.03em;
  flex: 0 0 auto;
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 3.2vw, 1.75rem);
  line-height: 1.15;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-faq .faq-cat__note {
  margin: 6px 0 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--fog);
}

.page-faq .faq-list {
  margin-top: 14px;
  display: grid;
  gap: 8px;
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--line);
  border-left: 3px solid var(--faq-line-soft);
  background-color: var(--ink-2);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(183, 255, 60, 0.35);
  border-left-color: var(--cat);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cat);
  background-color: rgba(7, 42, 43, 0.55);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 44px 14px 14px;
  cursor: pointer;
  list-style: none;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--paper);
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  line-height: 1.2;
  color: var(--cat);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
}

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

.page-faq .faq-item__idx {
  flex: 0 0 auto;
  font-size: 0.75rem;
  line-height: 1.9;
  color: var(--fog);
}

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

.page-faq .faq-item__a {
  padding: 0 16px 16px 40px;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(243, 239, 228, 0.86);
}

.page-faq .faq-item__a a,
.page-faq .faq-help a.link {
  color: var(--sky);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
  transition: color 0.18s var(--ease);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible,
.page-faq .faq-help a.link:hover,
.page-faq .faq-help a.link:focus-visible {
  color: var(--volt);
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(243, 239, 228, 0.86);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.95;
  color: var(--cat);
}

/* ---------- 底部求助条 ---------- */
.page-faq .faq-help {
  margin-top: clamp(28px, 5vw, 52px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: clamp(20px, 4vw, 36px);
  background-color: var(--wine);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut-lg)) 0, 100% var(--faq-cut-lg), 100% 100%, var(--faq-cut-lg) 100%, 0 calc(100% - var(--faq-cut-lg)));
}

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

.page-faq .faq-help__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 3vw, 1.65rem);
  line-height: 1.2;
  color: var(--paper);
}

.page-faq .faq-help__text p {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(243, 239, 228, 0.86);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-help a.link {
  color: #FFC67D;
}

.page-faq .faq-help a.link:hover,
.page-faq .faq-help a.link:focus-visible {
  color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-item__a {
    padding-left: 48px;
  }
}

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

  .page-faq .faq-hero__media {
    min-height: 100%;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 3vw, 36px);
  }

  .page-faq .faq-rail__inner {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-cat {
    scroll-margin-top: 28px;
  }

  .page-faq .faq-item__q {
    font-size: 1rem;
    padding: 16px 48px 16px 16px;
  }

  .page-faq .faq-item__q::after {
    right: 16px;
    top: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__link,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-cat__head,
  .page-faq .faq-item__a a,
  .page-faq .faq-help a.link {
    transition: none;
  }
}