/* ===== 常见问答 / faqs ===== */

.page-faq {
  --faq-accent: var(--silver);
  --faq-stick: calc(var(--head-h) + 96px);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  border-bottom: 2px solid var(--line-2);
}

.page-faq .faq-hero__inner {
  padding-block: clamp(22px, 4vw, 40px) clamp(30px, 5vw, 66px);
}

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
  margin-bottom: clamp(26px, 5vw, 56px);
}

.page-faq .crumbs a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--bone);
  border-bottom-color: var(--gold);
}

.page-faq .crumbs__item[aria-current="page"] {
  color: var(--gold);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 5vw, 46px);
  align-items: end;
}

.page-faq .faq-hero__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7.6vw, 82px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--bone);
  max-width: 18ch;
}

.page-faq .faq-hero__lead {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rock);
}

.page-faq .faq-hero__facts b {
  color: var(--bone);
  font-weight: 600;
}

.page-faq .faq-hero__media {
  margin: 0;
  border: var(--edge);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
  filter: saturate(.9) contrast(1.06);
}

/* ---------- 分组跳转条 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: var(--head-h);
  z-index: 6;
  background: rgba(14, 21, 38, .96);
  border-bottom: 2px solid var(--line-2);
}

.page-faq .faq-index__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-block: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-index__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-faq .faq-index__link {
  flex: none;
  font-size: 14px;
  color: var(--silver);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--bone);
  border-bottom-color: var(--orange);
}

.page-faq .faq-index__top {
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--rock);
  text-decoration: none;
  border: 2px solid var(--line-2);
  padding: 5px 10px;
}

.page-faq .faq-index__top:hover,
.page-faq .faq-index__top:focus-visible {
  color: var(--bone);
  border-color: var(--silver);
}

/* ---------- 主题筛选 ---------- */
.page-faq .faq-filters {
  padding-block: clamp(22px, 4vw, 38px);
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-filters__head {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}

.page-faq .faq-filters__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-faq .faq-filters__hint {
  margin: 0;
  font-size: 13px;
  color: var(--rock);
}

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

.page-faq .chip {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 8px 13px;
  background: transparent;
  color: var(--silver);
  border: 2px solid var(--line-2);
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .chip:hover {
  color: var(--bone);
  border-color: var(--silver);
}

.page-faq .chip[aria-pressed="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--void);
}

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

.page-faq .chip__count {
  margin-left: 5px;
  opacity: .72;
  font-variant-numeric: tabular-nums;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-block: clamp(34px, 6vw, 76px);
  border-bottom: 2px solid var(--line);
  scroll-margin-top: calc(var(--head-h) + 72px);
}

.page-faq .faq-group--season { --faq-accent: var(--clay); }
.page-faq .faq-group--stats { --faq-accent: var(--green); }
.page-faq .faq-group--lookup { --faq-accent: var(--gold); }
.page-faq .faq-group--version { --faq-accent: var(--moss); }
.page-faq .faq-group--feedback { --faq-accent: var(--orange); }

.page-faq .faq-group__inner {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-faq .faq-group__head {
  position: relative;
  padding-left: 16px;
  border-left: 3px solid var(--faq-accent);
}

.page-faq .faq-group__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--faq-accent);
}

.page-faq .faq-group__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 40px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--bone);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 3px;
  text-underline-offset: 10px;
  transition: text-decoration-color .25s var(--ease);
}

.page-faq .faq-group:target .faq-group__title {
  text-decoration-color: var(--faq-accent);
}

.page-faq .faq-group__note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--rock);
  max-width: 34ch;
}

.page-faq .faq-group__list {
  display: grid;
  gap: 14px;
  max-width: min(100%, 78ch);
}

/* ---------- 说明牌式问答 ---------- */
.page-faq .qa {
  border: 2px solid var(--line-2);
  background: var(--pod);
  box-shadow: 6px 6px 0 rgba(3, 6, 14, .6);
  transition: transform .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-faq .qa:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(3, 6, 14, .72);
}

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

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

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

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

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

.page-faq .qa__no {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--faq-accent);
  font-variant-numeric: tabular-nums;
}

.page-faq .qa__text {
  flex: 1 1 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--bone);
}

.page-faq .qa__mark {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 2px solid var(--line-2);
}

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

.page-faq .qa__mark::before {
  width: 8px;
  height: 2px;
}

.page-faq .qa__mark::after {
  width: 2px;
  height: 8px;
  transition: opacity .2s var(--ease);
}

.page-faq .qa[open] .qa__mark::after {
  opacity: 0;
}

.page-faq .qa__a {
  padding: 14px 18px 18px;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

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

.page-faq .qa__a a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  color: var(--bone);
}

/* ---------- 组内配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(16px, 3vw, 26px);
  border: var(--edge);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(.88) contrast(1.05);
}

/* ---------- 结尾轨道 ---------- */
.page-faq .faq-cta {
  padding-block: clamp(38px, 6vw, 78px);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 960px) {
  .page-faq {
    --faq-stick: calc(var(--head-h) + 120px);
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-faq .faq-group__inner {
    grid-template-columns: minmax(190px, 3fr) minmax(0, 9fr);
    gap: clamp(30px, 4vw, 58px);
  }

  .page-faq .faq-group__head {
    position: sticky;
    top: var(--faq-stick);
    align-self: start;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-hero h1 {
    max-width: 16ch;
  }
}

/* ---------- 减动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__mark::after,
  .page-faq .faq-index__link,
  .page-faq .chip,
  .page-faq .faq-group__title {
    transition: none;
  }

  .page-faq .qa:hover {
    transform: none;
    box-shadow: 6px 6px 0 rgba(3, 6, 14, .6);
  }
}