.page-faq {
  --faq-gap: clamp(20px, 3.2vw, 38px);
  --faq-radius: var(--r-lg);
  overflow-x: clip;
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(18px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  position: relative;
  padding-top: clamp(4px, 1.4vw, 16px);
}

.page-faq .faq-intro::after {
  content: "";
  position: absolute;
  top: -32%;
  left: 46%;
  width: 1px;
  height: 170%;
  transform: rotate(17deg);
  background: linear-gradient(180deg, transparent, rgba(123, 92, 255, 0.42), rgba(40, 224, 200, 0.24), transparent);
  pointer-events: none;
  display: none;
}

.page-faq .faq-intro__grid {
  display: grid;
  gap: clamp(26px, 4vw, 54px);
  position: relative;
  z-index: 1;
}

.page-faq .faq-title {
  font-size: clamp(30px, 5.6vw, 62px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: 0.02em;
  margin: 0.3em 0 0.55em;
  color: var(--text);
  text-wrap: balance;
}

.page-faq .faq-intro__text .lede {
  max-width: 62ch;
  color: var(--muted);
}

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-faq .faq-meta {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: clamp(18px, 2.6vw, 26px) 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 14px 20px;
}

.page-faq .faq-meta li {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  padding-left: 14px;
  position: relative;
}

.page-faq .faq-meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
  opacity: 0.75;
}

.page-faq .faq-meta__num {
  display: block;
  color: var(--gold);
  font-size: 20px;
  letter-spacing: 0.04em;
  line-height: 1.35;
}

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

.page-faq .faq-intro__media::before {
  content: "";
  position: absolute;
  inset: -14% -10% -16% -8%;
  background:
    radial-gradient(58% 58% at 72% 28%, rgba(123, 92, 255, 0.3), transparent 72%),
    radial-gradient(52% 52% at 22% 82%, rgba(40, 224, 200, 0.18), transparent 72%);
  filter: blur(8px);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-intro__media .media-frame {
  position: relative;
  z-index: 1;
  border-radius: var(--faq-radius);
  border: 1px solid var(--line);
  overflow: hidden;
}

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

/* ---------- 问答主体 ---------- */
.page-faq .faq-panel {
  position: relative;
  padding: clamp(20px, 3.4vw, 46px);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background:
    linear-gradient(180deg, rgba(19, 28, 61, 0.55) 0%, rgba(13, 21, 48, 0.92) 42%, rgba(6, 11, 26, 0.96) 100%);
  overflow: hidden;
}

.page-faq .faq-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--violet), var(--cyan), transparent);
  opacity: 0.85;
}

.page-faq .faq-panel__note {
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.page-faq .faq-tabs {
  margin-top: clamp(22px, 3.2vw, 34px);
}

.page-faq .faq-tabs__list {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: clamp(16px, 2.4vw, 26px);
  border-bottom: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tabs__btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

.page-faq .faq-tabs__panel {
  display: grid;
  gap: 0;
}

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

.page-faq .faq-item:first-of-type {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item__q {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 18px 46px 18px 22px;
  font-size: clamp(15px, 1.15vw, 17px);
  font-weight: 500;
  line-height: 1.6;
  color: var(--text);
  transition: color 220ms var(--ease);
}

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

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 2px;
  border-radius: 2px;
  background: var(--line);
  transition: background 240ms var(--ease);
}

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 18px;
  color: var(--gold);
  line-height: 1;
  transition: transform 240ms var(--ease), color 220ms var(--ease);
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__q::before {
  background: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
  color: var(--cyan);
  transform: translateY(-50%) rotate(180deg);
}

.page-faq .faq-item__a {
  padding: 0 46px 22px 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--gold);
}

/* ---------- 客服支持 ---------- */
.page-faq .faq-support__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-faq .faq-support__title {
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 300;
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin: 0.35em 0 0.7em;
  color: var(--text);
}

.page-faq .faq-support__body > p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
  margin: 0;
  max-width: 60ch;
}

.page-faq .faq-contact {
  margin: clamp(22px, 3.2vw, 32px) 0 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: minmax(72px, 88px) minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__row:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--dim);
  text-transform: uppercase;
  margin: 0;
}

.page-faq .faq-contact__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-faq .faq-support__note {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--dim);
  max-width: 58ch;
}

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

.page-faq .faq-support__media::after {
  content: "";
  position: absolute;
  inset: auto -8% -12% 22%;
  height: 68%;
  background: radial-gradient(60% 60% at 50% 60%, rgba(123, 92, 255, 0.24), transparent 74%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-support__media .media-frame {
  position: relative;
  z-index: 1;
  border-radius: var(--faq-radius);
  border: 1px solid var(--line);
  overflow: hidden;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-meta li {
    padding-left: 16px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-intro::after {
    display: block;
  }

  .page-faq .faq-intro__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-faq .faq-support__media {
    order: 2;
  }

  .page-faq .faq-support__body {
    order: 1;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-item__q {
    padding: 16px 40px 16px 16px;
  }

  .page-faq .faq-item__q::before {
    top: 20px;
    bottom: 20px;
  }

  .page-faq .faq-item__a {
    padding: 0 20px 20px 16px;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }
}

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