.page-faq {
  --faq-rail: 236px;
  --faq-card-radius: 0 18px 18px 0;
  display: block;
  background: var(--ink);
  color: var(--bone);
}

.page-faq .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 46px 0 58px;
  background:
    radial-gradient(112% 82% at 88% -12%, rgba(18, 166, 122, .22), transparent 60%),
    radial-gradient(78% 62% at 2% 104%, rgba(200, 56, 47, .14), transparent 64%),
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
  overflow: hidden;
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--gold) 28%, var(--jade) 66%, transparent 100%);
  opacity: .55;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(112deg, rgba(217, 169, 74, .055) 0 1px, transparent 1px 26px);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(32px, 5.4vw, 58px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--bone);
  text-shadow: 0 .5px 0 rgba(217, 169, 74, .45);
}

.page-faq .faq-lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--mute);
}

/* ---------- 两步操作条 ---------- */
.page-faq .query-steps {
  display: grid;
  gap: 12px;
  margin-top: 34px;
}

.page-faq .query-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 22px;
  background: rgba(18, 166, 122, .09);
  border: 1px solid var(--line-jade);
  border-radius: 3px 24px 24px 3px;
  transition: background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}

.page-faq .query-step:hover {
  background: rgba(18, 166, 122, .16);
  border-color: var(--jade-lite);
  transform: translateY(-2px);
}

.page-faq .query-step-num {
  flex: 0 0 auto;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--gold);
}

.page-faq .query-step h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--bone);
}

.page-faq .query-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .query-step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px 0;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--jade);
}

@media (max-width: 779px) {
  .page-faq .query-step-arrow {
    transform: rotate(90deg);
  }
}

@media (min-width: 780px) {
  .page-faq .query-steps {
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
  }
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-main {
  padding: 60px 0 0;
}

.page-faq .faq-body {
  display: grid;
  gap: 26px;
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

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

.page-faq .faq-rail-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-filter .filter-btn {
  appearance: none;
  padding: 8px 15px;
  border: 1px solid var(--line-bone);
  border-radius: 999px;
  background: transparent;
  color: var(--mute);
  font-family: inherit;
  font-size: 13.5px;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-filter .filter-btn:hover {
  color: var(--bone);
  border-color: var(--line-jade);
}

.page-faq .faq-filter .filter-btn[aria-pressed="true"],
.page-faq .faq-filter .filter-btn.is-active {
  background: var(--jade);
  border-color: var(--jade);
  color: #04140F;
  font-weight: 700;
}

@media (min-width: 1000px) {
  .page-faq .faq-filter {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
  }

  .page-faq .faq-filter .filter-btn {
    text-align: left;
  }
}

.page-faq .faq-rail-tip {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--gold);
  background: rgba(217, 169, 74, .07);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 问答块 ---------- */
.page-faq .qa-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .qa-block {
  background: rgba(18, 48, 42, .55);
  border: 1px solid var(--line-bone);
  border-left: 2px solid rgba(242, 237, 227, .16);
  border-radius: var(--faq-card-radius);
  transition: border-color .28s var(--ease), background .28s var(--ease);
}

.page-faq .qa-block:hover {
  border-left-color: var(--line-gold);
}

.page-faq .qa-block[data-open="true"] {
  background: rgba(18, 166, 122, .09);
  border-color: var(--line-jade);
  border-left-color: var(--gold);
}

.page-faq .qa-block .disclosure-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 17px 20px;
  border: 0;
  background: transparent;
  color: inherit;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
}

.page-faq .qa-block .disclosure-idx {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-faq .qa-block .disclosure-title {
  flex: 1 1 auto;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--bone);
}

.page-faq .qa-block--lead .disclosure-title {
  font-size: clamp(18px, 2.2vw, 21px);
}

.page-faq .qa-block .disclosure-icon {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 5px;
}

.page-faq .qa-block .disclosure-icon::before,
.page-faq .qa-block .disclosure-icon::after {
  content: "";
  position: absolute;
  background: var(--jade-lite);
  transition: transform .26s var(--ease), opacity .26s var(--ease);
}

.page-faq .qa-block .disclosure-icon::before {
  top: 8px;
  left: 1px;
  right: 1px;
  height: 2px;
}

.page-faq .qa-block .disclosure-icon::after {
  left: 8px;
  top: 1px;
  bottom: 1px;
  width: 2px;
}

.page-faq .qa-block[data-open="true"] .disclosure-icon::after {
  transform: scaleY(0);
}

.page-faq .qa-block .disclosure-panel {
  padding: 0 20px 19px;
}

.page-faq .qa-block .disclosure-panel p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mute);
}

.page-faq .qa-block .disclosure-panel p:last-child {
  margin-bottom: 0;
}

.page-faq .qa-block .disclosure-panel a {
  color: var(--jade-lite);
  text-underline-offset: 3px;
  text-decoration-color: var(--line-jade);
}

.page-faq .qa-figure {
  margin: 14px 0 0;
}

.page-faq .qa-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 2px 16px 16px 2px;
}

.page-faq .filter-empty {
  padding: 34px 24px;
  border: 1px dashed var(--line-bone);
  border-radius: var(--faq-card-radius);
  text-align: center;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .filter-empty[hidden] {
  display: none;
}

/* ---------- 联系收束 ---------- */
.page-faq .contact-bar {
  margin-top: 42px;
  padding: 28px 22px;
  background:
    linear-gradient(135deg, rgba(18, 166, 122, .13) 0%, transparent 56%),
    linear-gradient(180deg, var(--ink-2), var(--ink));
  border: 1px solid var(--line-gold);
  border-radius: 3px 26px 26px 3px;
}

.page-faq .contact-bar h2 {
  margin: 0 0 8px;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--bone);
}

.page-faq .contact-bar > p {
  margin: 0 0 22px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mute);
}

.page-faq .contact-grid {
  display: grid;
  gap: 16px;
}

.page-faq .contact-item {
  padding: 18px 20px;
  background: rgba(11, 31, 26, .62);
  border: 1px solid var(--line-bone);
  border-radius: 2px 16px 16px 2px;
}

.page-faq .contact-item .contact-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .contact-item .contact-value {
  display: block;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--bone);
  word-break: break-word;
  text-decoration: none;
}

.page-faq .contact-item .contact-value:hover {
  color: var(--jade-lite);
}

.page-faq .contact-item .contact-use {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--mute);
}

@media (min-width: 700px) {
  .page-faq .contact-bar {
    padding: 34px 32px;
  }

  .page-faq .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---------- 收尾 ---------- */
.page-faq .faq-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  margin-top: 46px;
  padding: 22px 0 8px;
  border-top: 1px solid var(--line-bone);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .faq-foot > p {
  margin: 0;
  max-width: 52ch;
}

.page-faq .faq-foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

@media (min-width: 860px) {
  .page-faq .faq-hero {
    padding: 60px 0 70px;
  }

  .page-faq .faq-main {
    padding-top: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .query-step,
  .page-faq .qa-block,
  .page-faq .faq-filter .filter-btn,
  .page-faq .qa-block .disclosure-icon::before,
  .page-faq .qa-block .disclosure-icon::after {
    transition: none;
  }

  .page-faq .query-step:hover {
    transform: none;
  }
}