.page-faq {
  --faq-line: var(--c-rule);
  --faq-panel: var(--c-panel);
  --faq-gap: clamp(10px, 1.6vw, 16px);
  --faq-radius: 2px 18px 2px 18px;
  background: var(--c-ink);
  color: var(--c-mist);
  font-family: var(--f-body);
  line-height: 1.75;
  padding-bottom: clamp(46px, 7vw, 92px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow-x: clip;
  padding: clamp(26px, 5vw, 56px) 0 clamp(24px, 4vw, 46px);
  background:
    radial-gradient(760px 320px at 88% -20%, rgba(200, 255, 77, 0.13), transparent 70%),
    linear-gradient(180deg, var(--c-navy) 0%, var(--c-ink) 94%);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(33, 66, 58, 0.42) 1px, transparent 1px);
  background-size: clamp(64px, 9vw, 128px) 100%;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 88%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-faq .faq-hero__crumb {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-silver);
}

.page-faq .faq-hero__crumb a {
  color: var(--c-silver);
  text-decoration: none;
}

.page-faq .faq-hero__crumb a:hover,
.page-faq .faq-hero__crumb a:focus-visible {
  color: var(--c-lime);
}

.page-faq .faq-kicker {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--c-lime);
  text-transform: uppercase;
}

.page-faq h1 {
  margin: 0;
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(27px, 4.4vw, 50px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--c-mist);
  max-width: 17em;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.85;
  color: var(--c-silver);
}

.page-faq .faq-quick {
  margin: 0;
  display: grid;
  gap: 10px;
  padding: 4px 0 4px 16px;
  border-left: 2px solid var(--c-lime);
}

.page-faq .faq-quick > div {
  display: grid;
  grid-template-columns: 5.6em minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-faq .faq-quick dt {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--c-lime);
}

.page-faq .faq-quick dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-mist);
}

/* ---------- 分类筛选条 ---------- */
.page-faq .faq-filter {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  padding: 10px 0;
  background: rgba(7, 22, 18, 0.94);
  border-bottom: 1px solid var(--faq-line);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-faq .faq-filter__inner {
  display: flex;
  align-items: center;
  gap: clamp(7px, 1.2vw, 12px);
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 2px;
}

.page-faq .faq-filter__inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-filter__hint {
  flex: none;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--c-silver);
  white-space: nowrap;
}

.page-faq .faq-filter input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-chip {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 6px 6px 14px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: var(--faq-panel);
  color: var(--c-mist);
  font-size: 12.5px;
  line-height: 1.5;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-chip b {
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 1px 7px;
  border-radius: 999px;
  background: rgba(200, 255, 77, 0.14);
  color: var(--c-lime);
}

.page-faq .faq-chip:hover {
  border-color: var(--c-lime);
}

.page-faq .faq-filter input:focus-visible + .faq-chip {
  outline: 2px solid var(--c-lime);
  outline-offset: 2px;
}

.page-faq .faq-filter input:checked + .faq-chip {
  background: var(--c-lime);
  border-color: var(--c-lime);
  color: var(--c-inktext);
  font-weight: 700;
}

.page-faq .faq-filter input:checked + .faq-chip b {
  background: rgba(7, 22, 18, 0.16);
  color: var(--c-inktext);
}

.page-faq:has(#f-sub:checked) .faq-body [data-cat]:not([data-cat="sub"]),
.page-faq:has(#f-rank:checked) .faq-body [data-cat]:not([data-cat="rank"]),
.page-faq:has(#f-venue:checked) .faq-body [data-cat]:not([data-cat="venue"]),
.page-faq:has(#f-account:checked) .faq-body [data-cat]:not([data-cat="account"]) {
  display: none;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-body {
  padding-top: clamp(22px, 4vw, 42px);
}

.page-faq .faq-group {
  margin-bottom: clamp(24px, 4vw, 44px);
  scroll-margin-top: calc(var(--header-h) + 72px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 26px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-mist);
}

.page-faq .faq-group__count {
  flex: none;
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--c-lime);
}

.page-faq .faq-group__desc {
  margin: 0 0 14px;
  max-width: 44em;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-silver);
}

.page-faq .faq-group__desc a,
.page-faq .faq-reach__more a {
  color: var(--c-lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 77, 0.4);
}

.page-faq .faq-group__desc a:hover,
.page-faq .faq-reach__more a:hover {
  border-bottom-color: var(--c-lime);
}

.page-faq .faq-group__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 4px 10px;
  align-items: start;
  padding: 14px 10px 14px 13px;
  border-left: 3px solid transparent;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-faq .faq-item summary:hover {
  background: rgba(16, 42, 36, 0.55);
}

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

.page-faq .faq-item[open] > summary {
  border-left-color: var(--c-lime);
  background: rgba(16, 42, 36, 0.72);
}

.page-faq .faq-item__no {
  font-family: var(--f-mono);
  font-size: 11.5px;
  line-height: 1.85;
  letter-spacing: 0.06em;
  color: var(--c-silver);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--c-lime);
}

.page-faq .faq-item__q {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--c-mist);
}

.page-faq .faq-item__mark {
  width: 20px;
  font-family: var(--f-mono);
  font-size: 16px;
  line-height: 1.5;
  text-align: center;
  color: var(--c-silver);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item__mark::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-item__mark::before {
  content: "\2212";
}

.page-faq .faq-item[open] .faq-item__mark {
  color: var(--c-lime);
}

.page-faq .faq-item__a {
  padding: 2px 14px 18px 34px;
  border-left: 3px solid var(--c-lime);
  background: rgba(16, 42, 36, 0.72);
  font-size: 14px;
  line-height: 1.9;
  color: var(--c-silver);
}

.page-faq .faq-item__a p {
  margin: 0 0 9px;
}

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

/* ---------- 路径图 ---------- */
.page-faq .faq-figure {
  margin: clamp(24px, 4vw, 44px) 0;
  padding: 10px;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  background: var(--faq-panel);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2px 12px 2px 12px;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--c-orange);
  font-family: var(--f-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.05em;
  color: var(--c-silver);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-reach {
  margin-top: clamp(28px, 5vw, 60px);
  padding-top: clamp(22px, 4vw, 40px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-reach__inner {
  max-width: 1040px;
  margin: 0 auto;
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
}

.page-faq .faq-reach__title {
  margin: 0 0 12px;
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-mist);
  max-width: 18em;
}

.page-faq .faq-reach__lead {
  margin: 0 0 16px;
  max-width: 36em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-silver);
}

.page-faq .faq-reach__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--faq-line);
}

.page-faq .faq-reach__list li {
  display: grid;
  grid-template-columns: 5.6em minmax(0, 1fr);
  gap: 12px;
  padding: 12px 14px;
  background: var(--faq-panel);
}

.page-faq .faq-reach__k {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--c-lime);
  line-height: 1.9;
}

.page-faq .faq-reach__v {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-mist);
  word-break: break-word;
}

.page-faq .faq-reach__more {
  margin: 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--c-silver);
}

.page-faq .faq-reach__figure {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  background: var(--faq-panel);
}

.page-faq .faq-reach__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2px 12px 2px 12px;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 860px) {
  .page-faq .faq-reach__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    column-gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-item summary {
    padding: 16px 14px 16px 16px;
  }

  .page-faq .faq-item__q {
    font-size: 15.5px;
  }

  .page-faq .faq-item__a {
    padding: 2px 22px 20px 38px;
    font-size: 14.5px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
    column-gap: clamp(28px, 4vw, 60px);
    row-gap: clamp(20px, 3vw, 32px);
    align-items: end;
  }

  .page-faq .faq-hero__crumb {
    grid-column: 1 / -1;
  }

  .page-faq .faq-quick {
    align-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-item summary,
  .page-faq .faq-item__mark {
    transition: none;
  }
}