.page-faq {
  --faq-ink-text: rgba(246, 244, 239, 0.72);
  --faq-ink-text-dim: rgba(246, 244, 239, 0.6);
  background: var(--paper);
  color: var(--text);
}

/* ---------- 首屏叙事 ---------- */
.page-faq .faq-hero {
  padding: clamp(30px, 6vw, 76px) 0 clamp(46px, 8vw, 104px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 60px);
  margin-top: clamp(26px, 5vw, 54px);
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 10vw, 5.6rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0.18em 0 0;
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.3vw, 1.14rem);
  line-height: 1.9;
  color: var(--text);
  max-width: 36em;
  margin-top: clamp(18px, 3vw, 30px);
}

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

.page-faq .faq-hero__stats {
  margin: 0;
  border-top: 1px solid var(--rule);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-stat__label {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--text-soft);
  margin: 0;
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3.2vw, 1.55rem);
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  text-align: right;
}

/* ---------- 六步图解 ---------- */
.page-faq .faq-steps {
  padding: clamp(46px, 8vw, 100px) 0 clamp(52px, 9vw, 116px);
  overflow: hidden;
}

.page-faq .faq-steps__intro {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--faq-ink-text);
  max-width: 42em;
  margin: clamp(14px, 2.5vw, 22px) 0 0;
}

.page-faq .faq-steps__viewport {
  margin-top: clamp(28px, 5vw, 46px);
  padding: 4px var(--pad) 18px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-steps__track {
  display: flex;
  gap: clamp(12px, 2vw, 20px);
  list-style: none;
  margin: 0;
  padding: 0;
  width: max-content;
}

.page-faq .faq-step {
  flex: 0 0 auto;
  width: clamp(224px, 72vw, 282px);
  scroll-snap-align: start;
}

.page-faq .faq-step__link {
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
  padding: clamp(18px, 3vw, 26px);
  background: rgba(20, 38, 58, 0.72);
  border: 1px solid var(--ink-line);
  border-left: 3px solid var(--ink-line);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 240ms var(--ease), background-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-faq .faq-step:first-child .faq-step__link {
  border-left-color: var(--gold);
}

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

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--gold-soft);
}

.page-faq .faq-step__title {
  font-family: var(--font-editorial);
  font-size: 1.16rem;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-step__text {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--faq-ink-text-dim);
}

.page-faq .faq-steps__figure {
  margin: clamp(28px, 5vw, 52px) 0 0;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-answers {
  padding: clamp(50px, 8vw, 110px) 0 clamp(52px, 8vw, 104px);
}

.page-faq .faq-answers__lede {
  font-family: var(--font-body);
  font-size: clamp(0.98rem, 2.1vw, 1.06rem);
  line-height: 1.85;
  color: var(--text);
  max-width: 48em;
  margin-top: clamp(14px, 2.5vw, 22px);
}

.page-faq .faq-topics {
  display: flex;
  gap: 10px;
  margin-top: clamp(22px, 4vw, 38px);
  padding: 2px 0 14px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-topic {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-faq .faq-topic:hover,
.page-faq .faq-topic:focus-visible {
  border-color: var(--gold);
  color: var(--ink);
}

.page-faq .faq-topic[aria-current="true"] {
  border-color: var(--gold);
  background: var(--sand);
  color: var(--ink);
}

.page-faq .faq-topic__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--text-soft);
}

.page-faq .faq-topic-block {
  margin-top: clamp(34px, 5vw, 58px);
  padding-top: clamp(30px, 4.5vw, 52px);
  border-top: 1px solid var(--rule);
}

.page-faq .faq-topic-block__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 14px;
}

.page-faq .faq-topic-block__num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-topic-block__head h3 {
  font-family: var(--font-editorial);
  font-size: clamp(1.35rem, 4vw, 1.85rem);
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}

.page-faq .faq-qa {
  margin-top: clamp(18px, 3vw, 28px);
  border-left: 3px solid var(--sand);
  padding-left: clamp(14px, 2.5vw, 24px);
}

.page-faq .faq-qa__item {
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-qa__q {
  margin: 0;
  font-weight: inherit;
  font-size: inherit;
}

.page-faq .faq-qa__trigger {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: clamp(14px, 2.4vw, 20px) 0;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-body);
  font-size: clamp(0.97rem, 2.4vw, 1.06rem);
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  transition: color 200ms var(--ease);
}

.page-faq .faq-qa__trigger::before {
  content: "";
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: 0.5em;
  border-right: 1.5px solid var(--gold);
  border-bottom: 1.5px solid var(--gold);
  transform: rotate(45deg);
  transition: transform 240ms var(--ease);
}

.page-faq .faq-qa__item[data-open="true"] .faq-qa__trigger::before {
  transform: rotate(225deg);
}

.page-faq .faq-qa__trigger:hover {
  color: var(--gold);
}

.page-faq .faq-qa__panel > div {
  padding-bottom: clamp(14px, 2.4vw, 22px);
}

.page-faq .faq-qa__panel p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text);
  max-width: 52em;
  margin: 0 0 0.85em;
}

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

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

.page-faq .faq-export-figure {
  margin: clamp(24px, 4vw, 38px) 0 6px;
}

/* ---------- 页尾联系带 ---------- */
.page-faq .faq-channel {
  padding: clamp(46px, 8vw, 96px) 0;
}

.page-faq .faq-channel__inner {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
}

.page-faq .faq-channel__title {
  font-family: var(--font-editorial);
  font-size: clamp(1.55rem, 5vw, 2.3rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink);
  margin: 0;
}

.page-faq .faq-channel__text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text);
  max-width: 34em;
  margin-top: clamp(12px, 2vw, 18px);
}

.page-faq .faq-channel__contacts {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-channel__row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.page-faq .faq-channel__row dt {
  font-family: var(--font-body);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

.page-faq .faq-channel__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-channel__action {
  justify-self: start;
}

@media (min-width: 720px) {
  .page-faq .faq-topics {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .faq-channel__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-faq .faq-channel__action {
    padding-bottom: 4px;
  }

  .page-faq .faq-steps__viewport {
    padding-left: max(var(--pad), calc((100vw - var(--shell)) / 2));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step__link,
  .page-faq .faq-qa__trigger,
  .page-faq .faq-qa__trigger::before,
  .page-faq .faq-topic {
    transition: none;
  }

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