.page-faq {
  --faq-tint-blue: rgba(45, 156, 255, .1);
  --faq-tint-flare: rgba(255, 77, 46, .09);
  --faq-gap: clamp(14px, 2.2vw, 22px);
  display: block;
  background:
    radial-gradient(1100px 520px at 80% -8%, var(--faq-tint-blue), transparent 62%),
    radial-gradient(880px 460px at 2% 30%, var(--faq-tint-flare), transparent 60%);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  padding-block: clamp(14px, 2.4vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(6px, 1.6vw, 18px) clamp(32px, 5vw, 62px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 50px);
  align-items: center;
}

.page-faq .faq-hero__copy h1 {
  margin: .32em 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 84px);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-hero__copy .lead {
  margin-top: clamp(16px, 2.4vw, 26px);
  max-width: 56ch;
  color: var(--moss);
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.75;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 3vw, 34px);
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: clamp(16px, 2.4vw, 22px) 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-stat__num {
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1;
  color: var(--flare);
  letter-spacing: -.02em;
}

.page-faq .faq-stat__label {
  font-size: 13px;
  color: var(--moss);
  letter-spacing: .04em;
}

.page-faq .faq-hero__figure {
  position: relative;
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: auto 12% -14px 12%;
  height: 28px;
  border-radius: var(--r-pill);
  background: var(--flare);
  filter: blur(28px);
  opacity: .34;
  z-index: -1;
}

/* ---------- 场景胶囊条 ---------- */
.page-faq .faq-scenes {
  padding-block: clamp(10px, 2vw, 20px) clamp(24px, 3.6vw, 40px);
}

.page-faq .faq-scenes__list {
  display: flex;
  gap: 10px;
  margin: 12px 0 0;
  padding: 4px 2px 10px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-scene {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--ink-2);
  color: var(--paper);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-scene__no {
  font-size: 12px;
  color: var(--ice);
  letter-spacing: .06em;
}

.page-faq .faq-scene:hover,
.page-faq .faq-scene:focus-visible {
  border-color: var(--flare);
  background: var(--ink-3);
  transform: translateY(-2px);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding-block: clamp(30px, 5vw, 58px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group--alt {
  background: linear-gradient(180deg, rgba(18, 59, 46, .55), rgba(11, 15, 14, 0));
}

.page-faq .faq-group__grid {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

.page-faq .faq-group__side {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-group__side .exhibit__no {
  color: var(--flare);
  font-size: 13px;
  letter-spacing: .14em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 40px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--moss);
}

.page-faq .faq-group__items {
  display: flex;
  flex-direction: column;
  gap: var(--faq-gap);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-item {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-2);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .qa-item:hover {
  border-color: var(--line-strong);
}

.page-faq .qa-item[data-open] {
  border-color: rgba(255, 77, 46, .5);
  background: var(--ink-3);
}

.page-faq .drawer__head {
  display: block;
}

.page-faq .drawer__btn {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  border: 0;
  background: none;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.58;
  text-align: left;
  cursor: pointer;
}

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

.page-faq .drawer__sign {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .drawer__sign::before,
.page-faq .drawer__sign::after {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 2px;
  border-radius: 2px;
  background: var(--moss);
  transform: translateY(-50%);
  transition: opacity var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .drawer__sign::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .qa-item[data-open] .drawer__sign {
  background: var(--flare);
  border-color: var(--flare);
  transform: rotate(180deg);
}

.page-faq .qa-item[data-open] .drawer__sign::before,
.page-faq .qa-item[data-open] .drawer__sign::after {
  background: var(--paper);
}

.page-faq .qa-item[data-open] .drawer__sign::after {
  opacity: 0;
}

.page-faq .qa-item__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur) var(--ease);
}

.page-faq .qa-item[data-open] .qa-item__panel {
  grid-template-rows: 1fr;
}

.page-faq .qa-item__answer {
  overflow: hidden;
}

.page-faq .qa-item__answer p {
  margin: 0;
  padding: 0 20px 20px 56px;
  max-width: 66ch;
  color: var(--moss);
  font-size: 15px;
  line-height: 1.78;
}

/* ---------- 横向图版带 ---------- */
.page-faq .faq-band {
  padding-block: clamp(30px, 5vw, 56px);
}

.page-faq .faq-band__grid {
  display: grid;
  gap: clamp(20px, 3.4vw, 42px);
  align-items: center;
  padding-block: clamp(24px, 4vw, 44px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-band__title {
  margin: .3em 0 .6em;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.12;
  color: var(--paper);
}

.page-faq .faq-band__copy p {
  margin: 0;
  max-width: 46ch;
  color: var(--moss);
  font-size: 15px;
  line-height: 1.78;
}

/* ---------- 术语说明牌 ---------- */
.page-faq .faq-terms {
  padding-block: clamp(34px, 5vw, 62px);
}

.page-faq .faq-terms__head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-terms__head h2 {
  margin: .28em 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 46px);
  line-height: 1.05;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-terms__note {
  margin: 0;
  max-width: 42ch;
  color: var(--moss);
  font-size: 14px;
  line-height: 1.72;
}

.page-faq .faq-terms__grid {
  display: grid;
  gap: var(--faq-gap);
  grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
}

.page-faq .faq-term {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(18, 59, 46, .9), rgba(14, 42, 34, .72));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-term:hover {
  border-color: rgba(45, 156, 255, .5);
  transform: translateY(-3px);
}

.page-faq .faq-term .exhibit__no {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--blue);
}

.page-faq .faq-term__name {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.2;
  color: var(--paper);
}

.page-faq .faq-term p {
  margin: 0;
  color: var(--moss);
  font-size: 14px;
  line-height: 1.74;
}

/* ---------- 反馈路径 ---------- */
.page-faq .faq-ask {
  padding-block: clamp(28px, 4.4vw, 52px) clamp(44px, 6vw, 84px);
}

.page-faq .faq-ask__inner {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid rgba(255, 77, 46, .32);
  border-radius: var(--r-xl);
  background:
    linear-gradient(135deg, rgba(255, 77, 46, .12), rgba(45, 156, 255, .1) 68%, transparent),
    var(--ink-2);
}

.page-faq .faq-ask__copy h2 {
  margin: .3em 0 .55em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 42px);
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-ask__copy p {
  margin: 0;
  max-width: 60ch;
  color: var(--moss);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .faq-ask__copy .mono {
  color: var(--ice);
  font-size: 14px;
  word-break: break-all;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-terms__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: end;
  }

  .page-faq .faq-ask__inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: center;
  }

  .page-faq .faq-ask__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-group__grid {
    grid-template-columns: minmax(0, 264px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 58px);
  }

  .page-faq .faq-group__side {
    position: sticky;
    top: 110px;
    align-self: start;
    padding-top: 4px;
  }

  .page-faq .faq-band__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

@media (max-width: 560px) {
  .page-faq .qa-item__answer p {
    padding: 0 16px 18px 16px;
  }

  .page-faq .drawer__btn {
    padding: 16px;
    gap: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item,
  .page-faq .qa-item__panel,
  .page-faq .drawer__sign,
  .page-faq .drawer__sign::before,
  .page-faq .drawer__sign::after,
  .page-faq .faq-scene,
  .page-faq .faq-term {
    transition-duration: .01ms !important;
  }

  .page-faq .faq-scene:hover,
  .page-faq .faq-term:hover {
    transform: none;
  }
}