.page-faq {
  --faq-rail-w: 236px;
  --faq-line: rgba(216, 179, 106, 0.28);
  --faq-line-strong: rgba(216, 179, 106, 0.62);
  --faq-panel: rgba(11, 42, 33, 0.82);
  --faq-card: rgba(18, 59, 49, 0.58);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .breadcrumbs {
  padding-top: clamp(14px, 2.4vw, 24px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(24px, 5vw, 56px) clamp(28px, 5vw, 56px);
  border-bottom: 1px solid var(--faq-line);
  background:
    radial-gradient(120% 90% at 92% 4%, rgba(53, 241, 208, 0.12), transparent 62%),
    linear-gradient(180deg, rgba(11, 42, 33, 0.9), rgba(6, 26, 20, 0));
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -46%;
  width: 62%;
  height: 120%;
  background: linear-gradient(180deg, rgba(255, 122, 26, 0.1), transparent 70%);
  transform: rotate(-9deg);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
  align-items: end;
}

.page-faq .faq-hero__text .display-title {
  margin: 10px 0 0;
  color: var(--mist);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__text .lede {
  margin: 16px 0 0;
  max-width: 56ch;
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 24px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--faq-line);
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray);
  text-transform: none;
}

.page-faq .faq-hero__stats span {
  color: var(--orange);
  font-size: 16px;
  margin-right: 4px;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  padding: 8px;
  border: 1px solid var(--faq-line-strong);
  background: var(--ink-deep);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.46;
  filter: saturate(0.72) contrast(1.05);
}

.page-faq .faq-hero__cap {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--sand);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  padding-top: clamp(24px, 4vw, 48px);
}

.page-faq .faq-rail {
  display: grid;
  gap: 12px;
}

.page-faq .faq-rail__panel {
  border: 1px solid var(--faq-line);
  background: linear-gradient(180deg, rgba(18, 59, 49, 0.9), rgba(11, 42, 33, 0.9));
  padding: 16px 16px 12px;
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px;
  color: var(--mist);
  font-size: 15px;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  color: var(--cyan);
  border-left-color: var(--orange);
  background: rgba(53, 241, 208, 0.06);
  outline: none;
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--sand);
  letter-spacing: 0.1em;
}

.page-faq .faq-status {
  border: 1px solid var(--faq-line);
  background: var(--faq-panel);
  padding: 14px 16px 16px;
}

.page-faq .faq-status__head {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-status__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 241, 208, 0.16);
  flex: none;
}

.page-faq .faq-status__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gray);
  text-transform: uppercase;
}

.page-faq .faq-status__time {
  margin: 8px 0 12px;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .faq-status__list {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--faq-line);
  display: grid;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-faq .faq-status__list > div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.page-faq .faq-status__list dt {
  color: var(--gray);
}

.page-faq .faq-status__list dd {
  margin: 0;
  color: var(--sand);
  white-space: nowrap;
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px;
  margin-bottom: clamp(18px, 3vw, 28px);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--orange);
  background: rgba(11, 42, 33, 0.8);
}

.page-faq .faq-filter .filter-bar__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .filter-empty {
  margin: 0 0 22px;
  padding: 16px;
  border: 1px dashed var(--faq-line);
  color: var(--gray);
  font-size: 14px;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-block {
  margin-bottom: clamp(28px, 4.4vw, 48px);
  scroll-margin-top: 96px;
}

.page-faq .faq-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-block__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-block__title {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .faq-block__note {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray);
}

/* ---------- 模块图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 18px;
  padding: 8px 8px 0;
  border: 1px solid var(--faq-line);
  background: linear-gradient(180deg, rgba(18, 59, 49, 0.65), rgba(6, 26, 20, 0.4));
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: 0.72;
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  padding: 10px 4px 12px;
  border-top: 1px dashed var(--rule-soft);
  font-size: 13px;
  line-height: 1.6;
  color: var(--gray);
}

/* ---------- 手风琴 ---------- */
.page-faq .qa-item {
  margin-bottom: 10px;
  border: 1px solid var(--faq-line);
  background: var(--faq-card);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .qa-item:hover {
  border-color: rgba(216, 179, 106, 0.55);
}

.page-faq .qa-item[open] {
  border-color: var(--faq-line-strong);
  background: rgba(18, 59, 49, 0.88);
  box-shadow: inset 3px 0 0 var(--orange);
}

.page-faq .qa-item__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: start;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.55;
}

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

.page-faq .qa-item__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .qa-item__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--sand);
  padding-top: 4px;
}

.page-faq .qa-item__sign {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 4px;
  flex: none;
}

.page-faq .qa-item__sign::before,
.page-faq .qa-item__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .qa-item__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .qa-item__sign::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

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

.page-faq .qa-item__body {
  padding: 0 14px 16px;
}

.page-faq .qa-item__body p {
  margin: 0 0 10px;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--gray);
}

.page-faq .qa-item__body p:last-of-type {
  margin-bottom: 12px;
}

.page-faq .qa-item__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(53, 241, 208, 0.5);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .qa-item__link:hover,
.page-faq .qa-item__link:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
  outline: none;
}

/* ---------- 联络卡 ---------- */
.page-faq .faq-contact {
  margin-top: 20px;
  padding: 20px 18px 22px;
  background: linear-gradient(160deg, rgba(18, 59, 49, 0.95), rgba(11, 42, 33, 0.95));
}

.page-faq .faq-contact__title {
  margin: 8px 0 14px;
  font-size: 18px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-contact .contact-row {
  display: grid;
  gap: 2px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--rule-soft);
}

.page-faq .faq-contact .contact-row__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--sand);
}

.page-faq .faq-contact .contact-row__val {
  font-size: 15px;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 12px 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

.page-faq .faq-contact__btn {
  display: inline-block;
}

/* ---------- 收尾入口 ---------- */
.page-faq .faq-next {
  margin-top: clamp(24px, 4vw, 40px);
  padding: clamp(20px, 3.4vw, 32px);
  border: 1px solid var(--faq-line-strong);
  border-top: 3px solid var(--orange);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(53, 241, 208, 0.12), transparent 60%),
    var(--faq-panel);
}

.page-faq .faq-next__title {
  margin: 0 0 8px;
  font-size: clamp(20px, 2.8vw, 27px);
  font-weight: 700;
  color: var(--mist);
  letter-spacing: -0.01em;
}

.page-faq .faq-next__text {
  margin: 0 0 18px;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray);
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-next__links a {
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-next__links a:hover,
.page-faq .faq-next__links a:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  outline: none;
}

.page-faq .faq-next__links a:active {
  background: var(--deep-orange);
  border-color: var(--deep-orange);
  color: var(--mist);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.9fr);
  }

  .page-faq .qa-item__summary {
    padding: 16px 18px;
    font-size: 16px;
  }

  .page-faq .qa-item__body {
    padding: 0 18px 18px 46px;
  }

  .page-faq .faq-contact {
    padding: 24px 22px 26px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-figure {
    margin-bottom: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .pulse-dot,
  .page-faq .qa-item,
  .page-faq .qa-item__sign::before,
  .page-faq .qa-item__sign::after,
  .page-faq .faq-next__links a,
  .page-faq .faq-rail__list a {
    transition: none;
    animation: none;
  }
}
</main>