.page-faq {
  --faq-panel: rgba(15, 51, 43, 0.68);
  --faq-glass: rgba(232, 241, 236, 0.07);
  --faq-hair: rgba(232, 241, 236, 0.11);
  display: block;
  color: var(--mist);
  background:
    radial-gradient(115% 55% at 100% 0%, rgba(43, 224, 192, 0.09), transparent 62%),
    radial-gradient(90% 45% at 0% 34%, rgba(110, 31, 44, 0.24), transparent 68%),
    var(--ink);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

.page-faq .num {
  font-family: var(--font-num);
  color: var(--lime);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding: clamp(1rem, 3vw, 1.6rem) var(--gutter) 0;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-num);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--sage);
}

.page-faq .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 0.45rem;
  color: rgba(126, 150, 140, 0.6);
}

.page-faq .breadcrumb__list a {
  color: rgba(232, 241, 236, 0.86);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(1.75rem, 5vw, 3rem) var(--gutter) 0;
}

.page-faq .faq-hero__inner {
  max-width: var(--maxw);
  margin-inline: auto;
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
  color: var(--gold);
  letter-spacing: 0.16em;
}

.page-faq .faq-hero h1 {
  margin: 0.7rem 0 1.05rem;
  max-width: 22ch;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.6vw, 3.35rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 38ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(232, 241, 236, 0.82);
}

.page-faq .faq-hero__aside {
  margin: 1.35rem 0 0;
  font-family: var(--font-num);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--sage);
}

.page-faq .faq-hero__aside time {
  color: var(--gold);
}

/* ---------- 分类标签区 ---------- */
.page-faq .faq-board {
  margin-top: clamp(2rem, 5.5vw, 3.5rem);
  padding: clamp(1.5rem, 4vw, 2.6rem) var(--gutter);
  background: linear-gradient(180deg, rgba(12, 16, 14, 0.72), rgba(5, 32, 26, 0.92));
  border-block: 1px solid rgba(200, 255, 77, 0.14);
}

.page-faq .faq-board__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 4vw, 2.4rem);
  align-items: center;
}

.page-faq .faq-board__lead h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 3.4vw, 1.75rem);
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .faq-board__lead p {
  margin: 0;
  max-width: 44ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(232, 241, 236, 0.74);
}

.page-faq .faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.25rem;
}

.page-faq .faq-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.58rem 1.05rem;
  border-radius: 999px;
  border: 1px solid rgba(232, 241, 236, 0.16);
  background: var(--faq-glass);
  -webkit-backdrop-filter: blur(9px);
  backdrop-filter: blur(9px);
  color: var(--mist);
  font-size: 0.9375rem;
  line-height: 1;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease,
    transform 0.25s ease;
}

.page-faq .faq-tab__num {
  font-family: var(--font-num);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--gold);
  transition: color 0.25s ease;
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-deep);
  transform: translateY(-2px);
}

.page-faq .faq-tab:hover .faq-tab__num,
.page-faq .faq-tab:focus-visible .faq-tab__num {
  color: var(--ink-deep);
}

.page-faq .faq-board__media {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(200, 255, 77, 0.18);
  background: var(--turf);
}

.page-faq .faq-board__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06) brightness(0.86);
}

.page-faq .faq-board__media figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 1.6rem 1rem 0.8rem;
  font-family: var(--font-num);
  font-size: 0.75rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: rgba(232, 241, 236, 0.9);
  background: linear-gradient(180deg, transparent, rgba(5, 32, 26, 0.94));
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-groups {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-faq .faq-group {
  padding-block: clamp(2.25rem, 6.5vw, 4.25rem);
  border-top: 1px solid var(--faq-hair);
  scroll-margin-top: 5.5rem;
}

.page-faq .faq-group:first-child {
  border-top: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: clamp(0.75rem, 2.5vw, 1.25rem);
  margin-bottom: clamp(1.1rem, 3vw, 1.65rem);
}

.page-faq .faq-group__num {
  flex: none;
  font-family: var(--font-num);
  font-size: clamp(1.8rem, 4.6vw, 2.75rem);
  line-height: 1;
  letter-spacing: -0.05em;
  color: rgba(200, 255, 77, 0.32);
}

.page-faq .faq-group__meta h2 {
  margin: 0 0 0.3rem;
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 3.2vw, 1.7rem);
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .faq-group__meta p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--sage);
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-item {
  position: relative;
  margin-bottom: 0.6rem;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: var(--faq-panel);
  overflow: hidden;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: rgba(200, 255, 77, 0.26);
  transition: background 0.3s ease, width 0.3s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(200, 255, 77, 0.28);
}

.page-faq .faq-item[open]::before {
  width: 4px;
  background: var(--lime);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.95rem 1rem 0.95rem 1.15rem;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--mist);
  transition: color 0.2s ease;
}

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

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

.page-faq .faq-item__idx {
  flex: none;
  padding-top: 0.18rem;
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--sage);
  transition: color 0.25s ease;
}

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

.page-faq .faq-item__text {
  flex: 1 1 auto;
}

.page-faq .faq-item__mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 0.4rem;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--gold);
  border-radius: 2px;
  transition: transform 0.28s ease, opacity 0.28s ease;
}

.page-faq .faq-item__mark::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
}

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

.page-faq .faq-item__a {
  padding: 0 1.1rem 1.1rem 2.35rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(232, 241, 236, 0.84);
}

.page-faq .faq-item__a p {
  margin: 0 0 0.75rem;
  max-width: 62ch;
}

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

.page-faq .faq-item__a a {
  color: var(--pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 224, 192, 0.42);
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.page-faq .faq-steps {
  counter-reset: faq-step;
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-steps li {
  counter-increment: faq-step;
  position: relative;
  padding-left: 2.2rem;
  line-height: 1.75;
}

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-num);
  font-size: 0.6875rem;
  letter-spacing: 0.02em;
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-cta {
  position: relative;
  margin-top: clamp(2rem, 6vw, 3.5rem);
  margin-inline: var(--gutter);
  max-width: var(--maxw);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-deep);
  border: 1px solid rgba(200, 255, 77, 0.16);
}

@media (min-width: 78rem) {
  .page-faq .faq-cta {
    margin-inline: auto;
  }
}

.page-faq .faq-cta__bg {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: 0;
}

.page-faq .faq-cta__bg img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.page-faq .faq-cta__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(1.4rem, 4vw, 2.1rem) 0;
}

.page-faq .faq-cta__text {
  flex: 1 1 20rem;
}

.page-faq .faq-cta__text h2 {
  margin: 0 0 0.4rem;
  font-family: var(--font-head);
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .faq-cta__text p {
  margin: 0;
  max-width: 46ch;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(232, 241, 236, 0.76);
}

.page-faq .faq-cta .btn {
  flex: none;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 62rem) {
  .page-faq .faq-board__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-group__head {
    align-items: baseline;
  }

  .page-faq .faq-item__q {
    padding: 1.05rem 1.3rem 1.05rem 1.4rem;
    font-size: 1.0625rem;
  }

  .page-faq .faq-item__a {
    padding: 0 1.4rem 1.3rem 3.15rem;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tab,
  .page-faq .faq-item,
  .page-faq .faq-item::before,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-item__q,
  .page-faq .faq-item__idx {
    transition: none;
  }

  .page-faq .faq-tab:hover,
  .page-faq .faq-tab:focus-visible {
    transform: none;
  }
}