.page-faq {
  --faq-gap: 1rem;
  --faq-legend-w: 288px;
  background:
    radial-gradient(120% 60% at 8% 0%, rgba(199, 255, 62, 0.12), transparent 58%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 42%, var(--ink-950) 100%);
  color: var(--paper-050);
  padding-bottom: 3.5rem;
}

.page-faq .breadcrumb {
  padding-top: 1.25rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 1rem 0 2rem;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: 0;
  height: 88px;
  background: linear-gradient(90deg, rgba(199, 255, 62, 0.14), rgba(255, 138, 61, 0.08) 62%, transparent);
  clip-path: polygon(0 62%, 100% 26%, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 1.75rem;
  align-items: start;
}

.page-faq .faq-hero__text {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.06;
  font-size: clamp(2.1rem, 7.4vw, 4.1rem);
  margin: 0.6rem 0 1rem;
  max-width: 18ch;
}

.page-faq .faq-hero__lead {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--mist-300);
  max-width: 46ch;
  margin: 0 0 1.6rem;
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  border-top: 1px solid var(--line-500);
  padding-top: 1rem;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--edge-700);
  border-radius: var(--radius-sm);
  background: rgba(10, 58, 39, 0.55);
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.55rem;
  line-height: 1.1;
  color: var(--lime-400);
  font-variant-numeric: tabular-nums lining-nums;
}

.page-faq .faq-stat__label {
  font-size: 0.75rem;
  color: var(--mist-300);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line-500);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.35);
}

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

/* ---------- 快速定位 ---------- */
.page-faq .faq-jump {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.1rem 0 1.4rem;
  border-bottom: 1px solid var(--line-500);
}

.page-faq .faq-jump__label {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--lime-200);
}

.page-faq .faq-jump__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0.35rem;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  white-space: nowrap;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--edge-700);
  border-radius: 999px;
  background: rgba(16, 84, 58, 0.35);
  color: var(--paper-050);
  font-size: 0.85rem;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-jump__link .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.72rem;
  color: var(--lime-400);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--lime-400);
  background: rgba(199, 255, 62, 0.12);
}

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

/* ---------- 双栏：图例 + 问答 ---------- */
.page-faq .faq-desk {
  display: grid;
  gap: 1.5rem;
  padding-top: 1.6rem;
}

.page-faq .faq-legend {
  border: 1px solid var(--line-500);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(10, 58, 39, 0.9), rgba(6, 37, 26, 0.9));
  padding: 1.1rem 1rem;
}

.page-faq .faq-legend__head {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--paper-050);
}

.page-faq .faq-legend__note {
  margin: 0.4rem 0 0.9rem;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--mist-300);
}

.page-faq .faq-legend__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.page-faq .faq-legend__item a {
  display: grid;
  grid-template-columns: 2.1rem 1fr;
  grid-template-areas:
    "coord name"
    "coord meta";
  column-gap: 0.6rem;
  align-items: baseline;
  padding: 0.55rem 0.6rem;
  border-left: 2px solid var(--edge-700);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-legend__coord {
  grid-area: coord;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--lime-400);
}

.page-faq .faq-legend__name {
  grid-area: name;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--paper-050);
}

.page-faq .faq-legend__meta {
  grid-area: meta;
  font-size: 0.73rem;
  line-height: 1.6;
  color: var(--mist-300);
}

.page-faq .faq-legend__item a:hover,
.page-faq .faq-legend__item a:focus-visible {
  border-left-color: var(--lime-400);
  background: rgba(199, 255, 62, 0.08);
}

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

.page-faq .faq-legend__foot {
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--line-500);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--mist-300);
}

.page-faq .faq-legend__mail {
  display: block;
  margin-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--lime-200);
  word-break: break-all;
}

/* ---------- 问答面板 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 1.1rem;
  min-width: 0;
}

.page-faq .faq-block {
  border: 1px solid var(--line-500);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(10, 58, 39, 0.92), rgba(3, 21, 14, 0.92));
  padding: 1.15rem 1rem;
  scroll-margin-top: calc(var(--header-h) + 1rem);
  min-width: 0;
}

.page-faq .faq-block--contact {
  border-color: rgba(255, 138, 61, 0.5);
  box-shadow: inset 3px 0 0 var(--orange-500);
}

.page-faq .faq-block__head {
  display: grid;
  gap: 0.35rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line-500);
}

.page-faq .faq-block__num {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--lime-400);
}

.page-faq .faq-block--contact .faq-block__num {
  color: var(--orange-500);
}

.page-faq .faq-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.25rem, 3.6vw, 1.7rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--paper-050);
}

.page-faq .faq-block__lead {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-faq .faq-list {
  display: grid;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-500);
}

.page-faq .faq-item__q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 0;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--paper-050);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--lime-400);
  line-height: 1.4;
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
  color: var(--lime-200);
}

.page-faq .faq-item__q:hover {
  color: var(--lime-200);
}

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

.page-faq .faq-item__a {
  padding: 0 0 0.95rem 0.85rem;
  margin-left: 0.1rem;
  border-left: 1px solid var(--edge-700);
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--mist-300);
}

/* ---------- 配图与链接 ---------- */
.page-faq .faq-figure {
  margin: 1.1rem 0 0;
  border: 1px solid var(--line-500);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--ink-950);
}

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

.page-faq .faq-figure__cap {
  padding: 0.55rem 0.75rem;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--mist-300);
  border-top: 1px solid var(--line-500);
}

.page-faq .faq-block__more {
  margin: 0.9rem 0 0;
}

.page-faq .faq-link {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--lime-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(199, 255, 62, 0.4);
  padding-bottom: 1px;
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--lime-200);
  border-bottom-color: var(--lime-200);
}

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

.page-faq .faq-back {
  margin: 0.3rem 0 0;
}

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 2rem;
    align-items: center;
  }

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

  .page-faq .faq-block {
    padding: 1.5rem 1.4rem;
  }

  .page-faq .faq-item__q {
    font-size: 1rem;
  }

  .page-faq .faq-item__a {
    padding-left: 1.1rem;
    font-size: 0.92rem;
  }
}

/* ---------- 桌面：图例固定，问答滚动 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 1.5rem 0 3rem;
  }

  .page-faq .faq-desk {
    grid-template-columns: var(--faq-legend-w) minmax(0, 1fr);
    gap: 2.25rem;
    align-items: start;
    padding-top: 2rem;
  }

  .page-faq .faq-legend {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
  }

  .page-faq .faq-block {
    padding: 1.75rem 1.75rem 1.5rem;
  }

  .page-faq .faq-jump {
    flex-direction: row;
    align-items: center;
    gap: 1rem;
  }

  .page-faq .faq-jump__label {
    flex: 0 0 auto;
  }

  .page-faq .faq-figure {
    margin-top: 1.4rem;
  }
}