.page-faq {
  --faq-gap: clamp(1rem, 3vw, 2rem);
  overflow-x: clip;
}

.page-faq > .wrap:first-child {
  padding-top: clamp(1rem, 2.5vw, 1.75rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(1.5rem, 4vw, 2.5rem) clamp(2rem, 5vw, 3.5rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto auto;
  width: min(48vw, 540px);
  height: 100%;
  background: repeating-linear-gradient(135deg, var(--lime-06) 0 1px, transparent 1px 18px);
  -webkit-mask-image: linear-gradient(200deg, #000 0%, transparent 70%);
  mask-image: linear-gradient(200deg, #000 0%, transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  gap: var(--faq-gap);
}

@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }
}

.page-faq .faq-hero h1 {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-5);
  line-height: 0.96;
  letter-spacing: 0.012em;
  color: var(--mist);
}

.page-faq .faq-hero__intro {
  margin: 1.1rem 0 0;
  max-width: 44ch;
  font-size: var(--step-1);
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hero__meta {
  margin: 1.4rem 0 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  color: var(--fog);
  font-size: var(--step--1);
  letter-spacing: 0.04em;
}

/* ---------- 快速定位卡 ---------- */
.page-faq .faq-quick {
  position: relative;
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--lime-06), transparent 42%), var(--stand);
  box-shadow: var(--shade);
}

.page-faq .faq-quick::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 44%;
  background: var(--lime);
}

.page-faq .faq-quick__label {
  margin: 0 0 1.1rem;
  color: var(--lime);
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-faq .faq-quick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-faq .faq-quick__item {
  position: relative;
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.7rem;
}

.page-faq .faq-quick__item + .faq-quick__item::before {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: -1rem;
  width: 1px;
  height: 1rem;
  background: var(--line);
}

.page-faq .faq-quick__num {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  line-height: 1.8;
  color: var(--cyan);
}

.page-faq .faq-quick__title {
  margin: 0 0 0.3rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step-1);
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-faq .faq-quick__body p {
  margin: 0;
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--fog);
}

/* ---------- 分组跳转条 ---------- */
.page-faq .faq-jump {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
  border-block: 1px solid var(--line);
  background: var(--cabin);
}

.page-faq .faq-jump__list {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-jump__list > li {
  flex: none;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid transparent;
  color: var(--fog);
  font-size: var(--step--1);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-jump__link .mono {
  color: var(--moss);
  font-size: 0.75rem;
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--lime);
  border-color: var(--line);
  background: var(--lime-06);
}

/* ---------- 分组骨架 ---------- */
.page-faq .faq-group {
  padding-block: clamp(2rem, 5vw, 3.5rem);
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 6rem;
}

.page-faq .faq-group:first-of-type {
  border-top-color: transparent;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 0.5rem;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-group__title {
  margin: 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step-3);
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-faq .faq-group__note {
  margin: 0;
  max-width: 62ch;
  font-size: var(--step-0);
  line-height: 1.75;
  color: var(--fog);
}

@media (min-width: 900px) {
  .page-faq .faq-group__head {
    grid-template-columns: 13rem minmax(0, 1fr);
    column-gap: 2rem;
    align-items: start;
  }

  .page-faq .faq-group__head .kicker {
    margin-top: 0.55rem;
  }

  .page-faq .faq-group__head > *:not(.kicker) {
    grid-column: 2;
  }
}

.page-faq .faq-group__body {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

@media (min-width: 960px) {
  .page-faq .faq-group__body--split {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-faq .faq-group__body--reverse {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

.page-faq .faq-group__cta {
  margin: 1rem 0 0;
}

/* ---------- 图与旁注 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--cabin);
}

.page-faq .faq-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.05);
}

.page-faq .faq-figure__cap {
  margin: 0;
  padding: 0.65rem 0.85rem;
  border-top: 1px solid var(--line);
  color: var(--fog);
  font-size: var(--step--1);
  letter-spacing: 0.04em;
}

.page-faq .faq-tip {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  border-left: 2px solid var(--orange);
  background: rgba(255, 138, 61, 0.07);
}

.page-faq .faq-tip__label {
  margin: 0 0 0.45rem;
  color: var(--orange);
  font-size: var(--step--1);
  letter-spacing: 0.12em;
}

.page-faq .faq-tip p:last-child {
  margin: 0;
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border-top: 1px solid var(--line);
  transition: background 0.2s var(--ease);
}

.page-faq .qa:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .qa[open] {
  background: linear-gradient(180deg, var(--lime-06), transparent 80%);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 1.9rem minmax(0, 1fr) 1.1rem;
  gap: 0.75rem;
  align-items: start;
  padding: 1rem 0.75rem 1rem 0.15rem;
  list-style: none;
  cursor: pointer;
  color: var(--mist);
  transition: color 0.18s var(--ease);
}

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

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

.page-faq .qa__q:hover {
  color: var(--lime-soft);
}

.page-faq .qa__q:focus-visible {
  outline: 1px solid var(--lime);
  outline-offset: 2px;
}

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

.page-faq .qa__num {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  padding-top: 0.4rem;
  color: var(--moss);
}

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

.page-faq .qa__text {
  font-size: var(--step-1);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.01em;
}

.page-faq .qa__sign {
  position: relative;
  justify-self: end;
  width: 1.1rem;
  height: 1.1rem;
  margin-top: 0.4rem;
  border: 1px solid var(--line);
  color: var(--fog);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .qa[open] .qa__sign {
  color: var(--lime);
  border-color: var(--lime-30);
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .qa__sign::before {
  left: 50%;
  top: 25%;
  bottom: 25%;
  width: 1px;
  transform: translateX(-50%);
}

.page-faq .qa__sign::after {
  top: 50%;
  left: 25%;
  right: 25%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .qa[open] .qa__sign::before {
  opacity: 0;
  transform: translateX(-50%) scaleY(0);
}

.page-faq .qa__a {
  padding: 0 0.75rem 1.35rem 0.15rem;
}

@media (min-width: 700px) {
  .page-faq .qa__a {
    padding-left: 2.65rem;
    padding-right: 1.6rem;
  }
}

.page-faq .qa__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-faq .qa__steps li {
  display: grid;
  grid-template-columns: 1.7rem minmax(0, 1fr);
  gap: 0.5rem;
  font-size: var(--step-0);
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .qa__steps li > .mono {
  padding-top: 0.36rem;
  color: var(--cyan);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: var(--step-0);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .qa__a p + p {
  margin-top: 0.75rem;
}

.page-faq .qa__note {
  margin: 0.9rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line-soft);
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--fog);
}

/* ---------- 三步定位卡 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 0.75rem;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

@media (min-width: 820px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-step {
  position: relative;
  padding: 1.1rem 1.1rem 1.35rem;
  border: 1px solid var(--line);
  background: var(--stand);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), transparent 78%);
}

.page-faq .faq-step__num {
  display: block;
  font-size: 1.65rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-faq .faq-step__title {
  margin: 0.7rem 0 0.35rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step-1);
  color: var(--mist);
}

.page-faq .faq-step__desc {
  margin: 0;
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--fog);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

@media (min-width: 880px) {
  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-faq .faq-support__list li {
  display: grid;
  grid-template-columns: 1.9rem minmax(0, 1fr);
  gap: 0.7rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--line-soft);
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-support__list li > .mono {
  padding-top: 0.35rem;
  color: var(--orange);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.page-faq .faq-support__card {
  padding: 1.25rem;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--lime-12), transparent 62%), var(--cabin);
}

.page-faq .faq-support__state {
  margin: 0 0 0.9rem;
  color: var(--lime);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
}

.page-faq .faq-support__card p {
  margin: 0;
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--fog);
}

.page-faq .faq-support__card p + p {
  margin-top: 0.6rem;
}

.page-faq .faq-copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0.35rem 0 0.7rem;
}

.page-faq .faq-copy__value {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-support__card .btn {
  margin-top: 0.4rem;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    animation: none !important;
  }
}