.page-faq {
  --faq-line: rgba(28, 58, 46, 0.6);
  --faq-answer: rgba(234, 243, 236, 0.78);
  display: block;
  background: var(--pitch);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--pitch);
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-faq .faq-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: saturate(1.15);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(200, 255, 77, 0.17), transparent 58%),
    linear-gradient(180deg, rgba(8, 19, 15, 0.35) 0%, rgba(8, 19, 15, 0.86) 64%, var(--pitch) 100%);
}

.page-faq .faq-hero__inner {
  padding-block: clamp(48px, 8vw, 104px) clamp(40px, 6vw, 76px);
}

.page-faq .faq-hero__tag {
  margin-top: clamp(22px, 4vw, 34px);
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  max-width: 17ch;
  font-size: var(--step-5);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--bone);
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: var(--step-1);
  line-height: 1.75;
  color: rgba(234, 243, 236, 0.84);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: clamp(32px, 5vw, 54px) 0 0;
  padding: 22px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 42px;
  border-top: 1px solid rgba(234, 243, 236, 0.14);
}

.page-faq .faq-hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 112px;
}

.page-faq .faq-hero__stats .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1;
  color: var(--amber);
}

.page-faq .faq-hero__stats .stat__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* ---------- 分组跳转 ---------- */
.page-faq .faq-jump {
  background: var(--turf);
  border-block: 1px solid var(--line-soft);
}

.page-faq .faq-jump__list {
  list-style: none;
  margin: 0;
  padding: 12px 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r);
  background: rgba(8, 19, 15, 0.5);
  color: var(--bone);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--t), color var(--t), background var(--t);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: rgba(200, 255, 77, 0.55);
  background: rgba(200, 255, 77, 0.08);
  color: var(--lime);
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding-block: clamp(8px, 2vw, 24px) clamp(24px, 4vw, 48px);
}

.page-faq .faq-stage {
  position: relative;
  padding-block: clamp(36px, 5.5vw, 66px);
}

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

.page-faq .faq-stage + .faq-stage::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 72px;
  height: 3px;
  background: var(--lime);
  transform: skewX(-32deg);
  transform-origin: left center;
}

.page-faq .faq-stage__inner {
  display: grid;
  gap: 22px;
  min-width: 0;
}

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

.page-faq .faq-stage__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--lime);
}

.page-faq .faq-stage__title {
  margin: 10px 0 0;
  font-size: var(--step-2);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-faq .faq-stage__verdict {
  margin: 14px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--lime);
  font-size: 15px;
  line-height: 1.7;
  color: var(--cyan);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  background: transparent;
  transition: background var(--t);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(200, 255, 77, 0.07), rgba(16, 36, 28, 0.5) 42%);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 22px;
  align-items: start;
  gap: 10px;
  padding: 18px 2px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
  padding-top: 4px;
}

.page-faq .faq-item__text {
  font-size: clamp(16px, 1.5vw, 18px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--bone);
  overflow-wrap: anywhere;
  transition: color var(--t);
}

.page-faq .faq-item__q:hover .faq-item__text,
.page-faq .faq-item__q:focus-visible .faq-item__text {
  color: var(--lime);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 5px;
  justify-self: end;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--lime);
  transition: transform var(--t), opacity var(--t);
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 9px;
  width: 20px;
  height: 1.5px;
}

.page-faq .faq-item__mark::after {
  left: 9px;
  top: 0;
  width: 1.5px;
  height: 20px;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 4px 20px 46px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-answer);
}

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

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--lime);
}

/* ---------- 三步排查图 ---------- */
.page-faq .faq-trace-wrap {
  margin-bottom: 6px;
  padding: 16px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r);
  background: var(--glass);
  overflow-x: auto;
}

.page-faq .faq-trace {
  display: block;
  width: 100%;
  min-width: 540px;
  height: auto;
}

/* ---------- 家庭观赛配图 ---------- */
.page-faq .faq-family-figure {
  margin: 24px 0 0;
}

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

.page-faq .faq-family-figure .figure-frame__caption {
  color: var(--mist);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-help {
  padding-block: clamp(48px, 7vw, 88px);
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, transparent, rgba(16, 36, 28, 0.62));
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 30px;
  min-width: 0;
}

.page-faq .faq-help__title {
  margin: 0;
  font-size: var(--step-3);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-faq .faq-help__note {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-answer);
}

.page-faq .faq-help__actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-help__card {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r);
  background: var(--glass);
  text-decoration: none;
  transition: transform var(--t), border-color var(--t), background var(--t);
}

.page-faq .faq-help__card:hover,
.page-faq .faq-help__card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(200, 255, 77, 0.5);
  background: rgba(16, 36, 28, 0.82);
}

.page-faq .faq-help__card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--bone);
}

.page-faq .faq-help__card-note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-help__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-stage__inner {
    grid-template-columns: minmax(0, 0.34fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-faq .faq-stage__aside {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 64px);
    align-items: start;
  }
}

@media (max-width: 620px) {
  .page-faq .faq-item__q {
    grid-template-columns: 28px minmax(0, 1fr) 20px;
    gap: 8px;
    padding: 16px 0;
  }

  .page-faq .faq-item__a {
    padding-left: 36px;
    font-size: 15.5px;
  }

  .page-faq .faq-stage__verdict {
    font-size: 14.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}