.page-faq {
  --faq-measure: 44rem;
  --faq-line: rgba(30, 58, 76, 0.95);
  --faq-soft: var(--text-soft);
  background: var(--deep-sea);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.85;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding-block: 2rem 1.25rem;
  overflow: clip;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -18%;
  width: min(78vw, 640px);
  aspect-ratio: 1 / 1;
  background: linear-gradient(148deg, rgba(53, 224, 208, 0.16), rgba(15, 34, 51, 0.92) 58%, rgba(6, 13, 21, 0) 88%);
  clip-path: polygon(26% 0, 100% 0, 100% 72%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero > .container {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  margin-bottom: 1.5rem;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 2rem;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 0.85rem;
}

.page-faq .faq-hero h1 {
  margin: 0 0 1rem;
  color: var(--nacre);
  letter-spacing: -0.02em;
  line-height: 1.16;
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 34rem;
  color: var(--text-soft);
  font-size: 1.02rem;
  line-height: 1.9;
}

.page-faq .faq-hero__quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.page-faq .faq-quick {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  min-height: 48px;
  padding: 0.65rem 0.85rem;
  background: linear-gradient(160deg, rgba(15, 34, 51, 0.95), rgba(10, 22, 34, 0.9));
  border-left: 2px solid var(--edge);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  transition: border-color 240ms var(--ease), color 240ms var(--ease), background-color 240ms var(--ease);
}

.page-faq .faq-quick__idx {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--coral);
}

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

.page-faq .faq-quick__go {
  color: var(--mist);
  transition: transform 240ms var(--ease), color 240ms var(--ease);
}

.page-faq .faq-quick:hover,
.page-faq .faq-quick:focus-visible {
  border-left-color: var(--neon);
  background: rgba(15, 34, 51, 1);
  color: var(--nacre);
}

.page-faq .faq-quick:hover .faq-quick__go,
.page-faq .faq-quick:focus-visible .faq-quick__go {
  color: var(--neon);
  transform: translateX(4px);
}

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

/* ---------- 索引条 ---------- */

.page-faq .faq-index {
  position: sticky;
  top: var(--topbar-h);
  z-index: 20;
  background: rgba(6, 13, 21, 0.94);
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
  backdrop-filter: blur(8px);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0.55rem 0;
  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: 0.5rem;
  min-height: 44px;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--edge);
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.82rem;
  white-space: nowrap;
  clip-path: var(--snip-clip);
  transition: border-color 240ms var(--ease), color 240ms var(--ease), background-color 240ms var(--ease);
}

.page-faq .faq-index__list a .mono {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--press-red);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-color: var(--neon);
  color: var(--nacre);
  background: rgba(53, 224, 208, 0.08);
}

.page-faq .faq-index__list a:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

/* ---------- 分组通用 ---------- */

.page-faq .faq-group {
  padding-block: 2.75rem;
  scroll-margin-top: calc(var(--topbar-h) + 4.5rem);
}

.page-faq .faq-group--abyss {
  background: var(--abyss);
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-group__grid {
  display: grid;
  gap: 2rem;
}

.page-faq .faq-group__main {
  max-width: var(--faq-measure);
}

.page-faq .faq-group__head {
  margin-bottom: 1.25rem;
}

.page-faq .faq-group__kicker {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 0.7rem;
}

.page-faq .faq-group__num {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--coral);
}

.page-faq .faq-slash {
  display: inline-block;
  width: 1.6rem;
  height: 3px;
  background: var(--press-red);
  transform: skewX(-30deg);
}

.page-faq .faq-group__kicker .label {
  color: var(--mist);
}

.page-faq .faq-group h2 {
  margin: 0 0 0.6rem;
  color: var(--nacre);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.page-faq .faq-group__intro {
  margin: 0;
  max-width: 38rem;
  color: var(--text-soft);
  font-size: 0.95rem;
}

/* ---------- 问答条目 ---------- */

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

.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .qa-sum {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr) 1.1rem;
  align-items: start;
  gap: 0.7rem;
  min-height: 56px;
  padding: 0.9rem 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-sum::marker {
  content: "";
}

.page-faq .qa-sum:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

.page-faq .qa-num {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  line-height: 1.9;
  color: var(--mist);
  transition: color 240ms var(--ease);
}

.page-faq .qa-q {
  display: block;
  color: var(--text);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.7;
  transition: color 240ms var(--ease);
}

.page-faq .qa-mark {
  position: relative;
  width: 1rem;
  height: 1rem;
  margin-top: 0.55rem;
  justify-self: end;
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  background: var(--mist);
  transition: transform 240ms var(--ease), background-color 240ms var(--ease);
}

.page-faq .qa-mark::after {
  transform: rotate(90deg);
}

.page-faq .qa[open] .qa-mark::before,
.page-faq .qa[open] .qa-mark::after {
  background: var(--neon);
}

.page-faq .qa[open] .qa-mark::after {
  transform: rotate(0deg);
}

.page-faq .qa-sum:hover .qa-q,
.page-faq .qa[open] .qa-q {
  color: var(--nacre);
}

.page-faq .qa[open] .qa-num {
  color: var(--neon);
}

.page-faq .qa-body {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr) 1.1rem;
  gap: 0.7rem;
  padding-bottom: 1.2rem;
}

.page-faq .qa-body > * {
  grid-column: 2;
}

.page-faq .qa-body p {
  margin: 0 0 0.7rem;
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.9;
}

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

.page-faq .qa-body a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
  transition: border-color 240ms var(--ease);
}

.page-faq .qa-body a:hover,
.page-faq .qa-body a:focus-visible {
  border-bottom-color: var(--neon);
}

.page-faq .qa-steps {
  list-style: none;
  margin: 0 0 0.7rem;
  padding: 0;
}

.page-faq .qa-steps:last-child {
  margin-bottom: 0;
}

.page-faq .qa-steps li {
  display: grid;
  grid-template-columns: 1.5rem minmax(0, 1fr);
  gap: 0.55rem;
  padding: 0.28rem 0;
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.9;
}

.page-faq .qa-steps li .mono {
  position: relative;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  line-height: 1.9;
  color: var(--coral);
}

.page-faq .qa-steps li .mono::after {
  content: "";
  position: absolute;
  left: 1.15rem;
  top: 50%;
  width: 0.35rem;
  height: 1px;
  background: var(--press-red);
}

/* ---------- 配图 ---------- */

.page-faq .faq-group__figure {
  margin: 0;
  max-width: 100%;
}

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

.page-faq .faq-group__figure figcaption {
  margin-top: 0.65rem;
  color: var(--mist);
  font-size: 0.8rem;
  line-height: 1.7;
}

.page-faq .faq-group__figure--wide {
  margin-top: 2rem;
}

/* ---------- 第五组：联系渠道（奶油版心） ---------- */

.page-faq .faq-group--cream {
  background: var(--nacre);
  color: var(--ink);
  --faq-line: rgba(36, 26, 20, 0.2);
}

.page-faq .faq-group--cream .faq-group__num {
  color: var(--press-red);
}

.page-faq .faq-group--cream .faq-group__kicker .label {
  color: var(--ink-faint);
}

.page-faq .faq-group--cream h2 {
  color: var(--ink);
}

.page-faq .faq-group--cream .faq-group__intro {
  color: var(--ink-soft);
}

.page-faq .faq-channels {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.page-faq .faq-channel {
  position: relative;
  background: var(--paper);
  padding: 1.3rem 1.1rem 1.35rem;
  clip-path: var(--snip-clip);
}

.page-faq .faq-channel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--press-red);
}

.page-faq .faq-channel__tag {
  margin: 0 0 0.55rem;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}

.page-faq .faq-channel h3 {
  margin: 0 0 0.55rem;
  color: var(--ink);
  font-size: 1.06rem;
  line-height: 1.5;
}

.page-faq .faq-channel p {
  margin: 0 0 0.7rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-faq .faq-channel__meta {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  line-height: 1.7;
  color: var(--press-red);
  word-break: break-word;
}

.page-faq .faq-foot {
  display: grid;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(36, 26, 20, 0.2);
}

.page-faq .faq-foot__addr {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  color: var(--ink);
  font-size: 0.92rem;
}

.page-faq .faq-foot__addr .mono {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--press-red);
}

.page-faq .faq-foot__note {
  margin: 0;
  max-width: 36rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.page-faq .faq-foot__cta {
  margin: 0.35rem 0 0;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .qa-sum,
  .page-faq .qa-body {
    grid-template-columns: 2.6rem minmax(0, 1fr) 1.1rem;
    gap: 0.85rem;
  }

  .page-faq .qa-q {
    font-size: 1.05rem;
  }

  .page-faq .faq-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-block: 3.25rem 2rem;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 16rem;
    gap: 3rem;
    align-items: start;
  }

  .page-faq .faq-group {
    padding-block: 4.25rem;
  }

  .page-faq .faq-group__grid {
    grid-template-columns: minmax(0, var(--faq-measure)) 14rem;
    gap: 3rem;
    align-items: start;
  }

  .page-faq .faq-group__figure--wide {
    max-width: 52rem;
  }

  .page-faq .faq-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.15rem;
  }

  .page-faq .faq-foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 2rem;
  }

  .page-faq .faq-foot__addr {
    grid-column: 1;
  }

  .page-faq .faq-foot__note {
    grid-column: 1;
  }

  .page-faq .faq-foot__cta {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick,
  .page-faq .faq-quick__go,
  .page-faq .faq-index__list a,
  .page-faq .qa-num,
  .page-faq .qa-q,
  .page-faq .qa-mark::before,
  .page-faq .qa-mark::after {
    transition-duration: 120ms;
  }

  .page-faq .faq-quick:hover .faq-quick__go,
  .page-faq .faq-quick:focus-visible .faq-quick__go {
    transform: none;
  }
}