.page-faq {
  --faq-toc-w: 238px;
  --faq-card-bg: linear-gradient(158deg, rgba(13, 46, 36, 0.96) 0%, rgba(7, 28, 22, 0.98) 100%);
  --faq-shadow: 6px 6px 0 rgba(3, 18, 14, 0.55);
}

.page-faq .faq-shell {
  padding-block: clamp(18px, 3vw, 34px) var(--gap-xl);
}

/* ── 首屏：错位色块 ───────────────────────────── */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  margin-top: var(--gap-m);
  padding: clamp(24px, 4.2vw, 54px);
  border: var(--line-soft);
  border-radius: var(--radius-l);
  background: linear-gradient(142deg, var(--c-turf) 0%, var(--c-ink) 62%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -46%;
  right: -18%;
  width: 58%;
  height: 190%;
  background: var(--c-indigo);
  opacity: 0.62;
  transform: rotate(17deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42%;
  height: 4px;
  background: linear-gradient(90deg, var(--c-neon), var(--c-amber) 70%, transparent);
  pointer-events: none;
}

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

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--gap-s);
  margin-bottom: var(--gap-m);
}

.page-faq .faq-hero__date {
  font-family: var(--font-note);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--c-amber);
  padding-left: 9px;
  border-left: 2px solid var(--c-amber);
}

.page-faq .faq-hero h1 {
  margin: 0 0 var(--gap-m);
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.6vw, 3.1rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-faq .faq-hero .lead {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(0.98rem, 1.5vw, 1.08rem);
  line-height: 1.85;
  color: var(--c-paper);
  opacity: 0.88;
}

.page-faq .faq-stats {
  list-style: none;
  margin: clamp(24px, 3.2vw, 36px) 0 0;
  padding: clamp(18px, 2.4vw, 24px) 0 0;
  border-top: var(--line-soft);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-m);
}

.page-faq .faq-stats__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.2vw, 1.95rem);
  font-weight: 700;
  color: var(--c-neon);
  line-height: 1;
}

.page-faq .faq-stats__unit {
  margin-left: 3px;
  font-size: 0.84rem;
  color: var(--c-neon);
}

.page-faq .faq-stats__label {
  display: block;
  margin-top: 7px;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--c-mute);
}

/* ── 三栏骨架 ─────────────────────────────────── */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap-l);
  margin-top: var(--gap-xl);
  align-items: start;
}

/* ── 目录 ─────────────────────────────────────── */
.page-faq .faq-toc {
  position: sticky;
  top: 0;
  z-index: 20;
  padding-block: 10px;
  background: var(--c-ink);
  border-bottom: var(--line-soft);
}

.page-faq .faq-toc__title {
  display: none;
  margin: 0 0 10px;
  font-family: var(--font-note);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--c-mute);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--gap-xs);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toc__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  white-space: nowrap;
  font-size: 0.86rem;
  color: var(--c-paper);
  text-decoration: none;
  border: var(--line-soft);
  border-radius: 999px;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--c-neon);
  border-color: rgba(0, 229, 199, 0.55);
  background: rgba(0, 229, 199, 0.07);
}

.page-faq .faq-toc__idx {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--c-amber);
}

/* ── 章节 ─────────────────────────────────────── */
.page-faq .faq-sec {
  scroll-margin-top: calc(var(--head-h) + 70px);
}

.page-faq .faq-sec + .faq-sec {
  margin-top: var(--gap-xl);
}

.page-faq .faq-sec__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--gap-s);
  padding-top: var(--gap-s);
  border-top: 3px solid var(--c-neon);
}

.page-faq .faq-sec--score .faq-sec__head {
  border-top-color: var(--c-amber);
}

.page-faq .faq-sec--h2h .faq-sec__head {
  border-top-color: var(--c-neon);
}

.page-faq .faq-sec--fix .faq-sec__head {
  border-top-color: var(--c-rose);
}

.page-faq .faq-sec--family .faq-sec__head {
  border-top-color: var(--c-neon-soft);
}

.page-faq .faq-sec__num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-amber);
  letter-spacing: 0.08em;
}

.page-faq .faq-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.72rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.25;
  color: var(--c-paper);
}

.page-faq .faq-sec__lead {
  max-width: 64ch;
  margin: var(--gap-s) 0 0;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--c-mute);
}

.page-faq .faq-figure {
  margin: var(--gap-m) 0 0;
}

/* ── 问题卡片 ─────────────────────────────────── */
.page-faq .faq-list {
  margin-top: var(--gap-m);
  border-left: 1px solid rgba(154, 181, 170, 0.16);
  padding-left: clamp(12px, 2vw, 22px);
}

.page-faq .faq-list--wine {
  border-left-color: rgba(240, 199, 214, 0.35);
}

.page-faq .faq-list--family {
  border-left-color: rgba(124, 255, 232, 0.35);
}

.page-faq .qa {
  position: relative;
  background: var(--faq-card-bg);
  border: var(--line-soft);
  border-radius: var(--radius-m);
  box-shadow: var(--faq-shadow);
}

.page-faq .qa + .qa {
  margin-top: var(--gap-s);
}

.page-faq .qa[open] {
  border-color: rgba(0, 229, 199, 0.34);
}

.page-faq .qa > summary {
  display: flex;
  align-items: flex-start;
  gap: var(--gap-s);
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--c-paper);
}

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

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

.page-faq .qa__sign {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 1px solid rgba(0, 229, 199, 0.5);
  border-radius: 50%;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--c-neon);
}

.page-faq .qa__sign::before {
  width: 9px;
  height: 1.5px;
}

.page-faq .qa__sign::after {
  width: 1.5px;
  height: 9px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .qa[open] .qa__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__q {
  font-family: var(--font-display);
  font-size: clamp(0.98rem, 1.6vw, 1.08rem);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.01em;
}

.page-faq .qa__a {
  padding: 0 18px 18px calc(18px + 20px + var(--gap-s));
  border-top: var(--line-soft);
  margin-top: 2px;
  padding-top: 14px;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--c-paper);
  opacity: 0.9;
}

.page-faq .qa__a p + p {
  margin-top: 10px;
}

.page-faq .qa__a a {
  color: var(--c-neon);
}

/* ── 延伸入口 ─────────────────────────────────── */
.page-faq .faq-next {
  margin-top: var(--gap-xl);
}

.page-faq .faq-next__head {
  border-top: 3px solid var(--c-amber);
  padding-top: var(--gap-s);
}

.page-faq .faq-next__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  font-weight: 800;
  line-height: 1.28;
  color: var(--c-paper);
}

.page-faq .faq-next__note {
  margin: 8px 0 0;
  font-family: var(--font-note);
  font-size: 0.78rem;
  color: var(--c-mute);
}

.page-faq .faq-next__grid {
  margin-top: var(--gap-m);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap-s);
}

.page-faq .faq-next__card {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 20px;
  text-decoration: none;
  border: var(--line-soft);
  border-radius: var(--radius-m);
  background: var(--c-turf);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  border-color: rgba(0, 229, 199, 0.5);
  transform: translateY(-3px);
}

.page-faq .faq-next__kicker {
  font-family: var(--font-note);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--c-amber);
}

.page-faq .faq-next__name {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .faq-next__desc {
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--c-mute);
}

/* ── 桌面端 ───────────────────────────────────── */
@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-toc-w) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--head-h) + 18px);
    padding-block: 0;
    background: transparent;
    border-bottom: 0;
    border-left: var(--line-soft);
    padding-left: var(--gap-m);
  }

  .page-faq .faq-toc__title {
    display: block;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }

  .page-faq .faq-toc__list > li {
    flex: 1 1 auto;
  }

  .page-faq .faq-toc__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 9px 10px;
    white-space: normal;
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    border-left-color: var(--c-neon);
    background: rgba(0, 229, 199, 0.06);
  }

  .page-faq .faq-sec {
    scroll-margin-top: calc(var(--head-h) + 24px);
  }

  .page-faq .faq-list .qa:nth-child(even) {
    margin-left: clamp(10px, 1.6vw, 22px);
  }

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

@media (min-width: 1180px) {
  .page-faq .faq-hero {
    padding-right: clamp(48px, 8vw, 120px);
  }

  .page-faq .faq-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-faq .faq-stats {
    gap: var(--gap-s);
  }

  .page-faq .qa__a {
    padding-left: 18px;
  }

  .page-faq .qa > summary {
    padding: 14px 14px;
  }
}