.page-faq {
  --faq-axis: 236px;
  --faq-soft: rgba(138, 145, 139, .26);
  --faq-ink-2: rgba(11, 15, 14, .92);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(30px, 5.5vw, 68px) 0 clamp(26px, 4vw, 46px);
  background: linear-gradient(158deg, var(--board) 0%, var(--ink) 60%, var(--ink) 100%);
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: .55;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -22%;
  right: -10%;
  width: min(52vw, 600px);
  aspect-ratio: 1 / 1;
  background: linear-gradient(148deg, rgba(53, 242, 184, .20), rgba(53, 242, 184, 0) 68%);
  clip-path: polygon(100% 0, 100% 100%, 10% 0);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 44px);
}

.page-faq .faq-hero__copy .breadcrumb {
  margin-bottom: 18px;
}

.page-faq .faq-hero__copy .eyebrow {
  margin: 0 0 10px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(2rem, 5.6vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--cool);
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 46em;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--stone);
}

.page-faq .faq-hero__hint {
  margin: 18px 0 0;
  font-size: var(--fs-small);
  color: var(--stone);
}

.page-faq .faq-hero__hint a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line-mint);
  padding-bottom: 1px;
}

.page-faq .faq-hero__hint a:hover {
  color: var(--lemon);
  border-bottom-color: var(--lemon);
}

/* 战术板规格表 */
.page-faq .faq-spec {
  position: relative;
  border: 1px solid var(--line-mint);
  background: linear-gradient(180deg, rgba(14, 59, 51, .82), rgba(11, 15, 14, .94));
  padding: 20px 20px 14px;
}

.page-faq .faq-spec::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 42px;
  height: 42px;
  border-top: 2px solid var(--lemon);
  border-left: 2px solid var(--lemon);
  pointer-events: none;
}

.page-faq .faq-spec__title {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--lemon);
}

.page-faq .faq-spec__list {
  margin: 0;
}

.page-faq .faq-spec__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: var(--fs-small);
}

.page-faq .faq-spec__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-spec__row dt {
  color: var(--stone);
  flex: 0 0 auto;
}

.page-faq .faq-spec__row dd {
  margin: 0;
  text-align: right;
  color: var(--cool);
  font-weight: 700;
  font-family: var(--font-num);
  letter-spacing: .02em;
}

/* ---------- 快速入口 ---------- */
.page-faq .faq-quick__head {
  align-items: flex-end;
}

.page-faq .faq-quick__board {
  align-items: stretch;
}

.page-faq .quick-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--faq-soft);
  border: 1px solid var(--faq-soft);
  height: 100%;
}

.page-faq .quick-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 12px;
  row-gap: 6px;
  height: 100%;
  padding: 18px 16px;
  background: var(--ink);
  color: var(--cool);
  text-decoration: none;
  transition: background .22s ease;
}

.page-faq .quick-card__idx {
  grid-row: 1 / 3;
  align-self: start;
  font-family: var(--font-num);
  font-size: 1.5rem;
  line-height: 1;
  font-weight: 700;
  letter-spacing: .04em;
  color: rgba(53, 242, 184, .45);
  transition: color .22s ease;
}

.page-faq .quick-card__title {
  font-family: var(--font-title);
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: 1.3;
}

.page-faq .quick-card__desc {
  font-size: var(--fs-small);
  line-height: 1.65;
  color: var(--stone);
}

.page-faq .quick-card:hover,
.page-faq .quick-card:focus-visible {
  background: var(--teal);
}

.page-faq .quick-card:hover .quick-card__idx,
.page-faq .quick-card:focus-visible .quick-card__idx {
  color: var(--lemon);
}

.page-faq .quick-card:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: -2px;
}

.page-faq .faq-quick__figure {
  height: 100%;
  margin: 0;
}

.page-faq .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-main__head {
  align-items: flex-end;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.4vw, 30px);
}

.page-faq .faq-axis {
  border-top: 2px solid var(--mint);
  padding-top: 14px;
}

.page-faq .faq-axis__label {
  margin: 0 0 12px;
  font-family: var(--font-title);
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--stone);
}

.page-faq .faq-filters {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--moss) transparent;
}

.page-faq .faq-filters::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-filters::-webkit-scrollbar-thumb {
  background: var(--moss);
}

.page-faq .faq-filter-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--faq-soft);
  background: transparent;
  color: var(--stone);
  font-family: var(--font-body);
  font-size: var(--fs-small);
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

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

.page-faq .faq-filter-btn[aria-pressed="true"] {
  background: var(--mint);
  border-color: var(--mint);
  color: var(--ink);
  font-weight: 700;
}

.page-faq .faq-filter-count {
  font-family: var(--font-num);
  font-size: var(--fs-micro);
  letter-spacing: .06em;
  opacity: .7;
}

.page-faq .faq-axis__note {
  margin: 12px 0 0;
  font-size: var(--fs-micro);
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-stream {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-soft);
  background: linear-gradient(180deg, rgba(16, 37, 28, .70), var(--faq-ink-2));
  transition: border-color .2s ease, box-shadow .2s ease;
}

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

.page-faq .faq-item.is-hidden {
  display: none;
}

.page-faq .faq-item:has(.faq-q[open]) {
  border-color: var(--line-mint);
  box-shadow: inset 3px 0 0 var(--mint);
}

.page-faq .faq-q {
  margin: 0;
}

.page-faq .faq-q > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--cool);
}

.page-faq .faq-q > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-q > summary::marker {
  content: "";
}

.page-faq .faq-q > summary:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: -2px;
}

.page-faq .faq-q__idx {
  font-family: var(--font-num);
  font-size: var(--fs-micro);
  letter-spacing: .1em;
  color: var(--lemon);
  align-self: start;
  padding-top: 3px;
}

.page-faq .faq-q__text {
  font-family: var(--font-title);
  font-size: clamp(1rem, .6vw + .84rem, 1.25rem);
  font-weight: 700;
  line-height: 1.45;
}

.page-faq .faq-q__icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.page-faq .faq-q__icon::before,
.page-faq .faq-q__icon::after {
  content: "";
  position: absolute;
  background: var(--mint);
  transition: transform .22s ease, opacity .22s ease;
}

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

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

.page-faq .faq-q[open] .faq-q__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-q__body {
  padding: 2px 18px 20px 50px;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--stone);
  border-top: 1px solid var(--line-soft);
  margin-top: -1px;
  padding-top: 14px;
}

.page-faq .faq-q__body p {
  margin: 0 0 10px;
}

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

.page-faq .faq-q__body a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line-mint);
}

.page-faq .faq-q__body a:hover {
  color: var(--lemon);
  border-bottom-color: var(--lemon);
}

.page-faq .faq-figure {
  margin: 16px 0 0;
}

.page-faq .faq-empty {
  margin: 0;
  padding: 26px 18px;
  border: 1px dashed var(--faq-soft);
  text-align: center;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 底部客服面板 ---------- */
.page-faq .faq-contact-panel {
  margin-top: 6px;
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 4px 0 14px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-soft);
}

.page-faq .faq-contact-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 14px;
  background: rgba(14, 59, 51, .55);
}

.page-faq .faq-contact-list .contact-label {
  font-size: var(--fs-micro);
  letter-spacing: .14em;
  color: var(--stone);
}

.page-faq .faq-contact-list .contact-value {
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--cool);
  word-break: break-word;
}

.page-faq .faq-contact-links {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .faq-contact-links a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line-mint);
}

.page-faq .faq-contact-links a:hover {
  color: var(--lemon);
  border-bottom-color: var(--lemon);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact-list li:nth-child(3) {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-axis) minmax(0, 1fr);
    gap: clamp(22px, 3vw, 48px);
    align-items: start;
  }

  .page-faq .faq-axis {
    position: sticky;
    top: 92px;
    border-top: 2px solid var(--mint);
  }

  .page-faq .faq-filters {
    flex-direction: column;
    flex-wrap: wrap;
    overflow: visible;
    padding-bottom: 0;
    gap: 6px;
  }

  .page-faq .faq-filter-btn {
    width: 100%;
    justify-content: space-between;
    white-space: normal;
    text-align: left;
    padding: 11px 14px;
  }

  .page-faq .faq-q__body {
    padding-left: 56px;
    padding-right: 26px;
    max-width: 62em;
  }
}

@media (min-width: 1180px) {
  .page-faq .quick-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-contact-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact-list li:nth-child(3) {
    grid-column: 1 / -1;
  }
}

@media (max-width: 719px) {
  .page-faq .faq-quick__figure {
    margin-top: 4px;
  }

  .page-faq .faq-q > summary {
    gap: 10px;
    padding: 15px 14px;
  }

  .page-faq .faq-q__body {
    padding: 14px 14px 18px;
  }
}