.page-faq {
  --faq-line: rgba(143, 160, 200, .22);
  --faq-line-strong: rgba(53, 224, 208, .5);
  --faq-glow: rgba(53, 224, 208, .35);
  padding-bottom: var(--gap-5);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 6vw, 72px) 0 clamp(40px, 7vw, 88px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -10% -20% auto -20%;
  height: 120%;
  background:
    radial-gradient(60% 55% at 15% 12%, rgba(53, 224, 208, .16), transparent 70%),
    radial-gradient(45% 45% at 88% 78%, rgba(255, 107, 74, .13), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--gap-4);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 7.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--c-snow);
  margin: var(--gap-2) 0 var(--gap-3);
  max-width: 16ch;
}

.page-faq .faq-hero .lede {
  color: var(--c-mist);
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-2);
  margin-top: var(--gap-3);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: var(--gap-4) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-2);
  border-top: 1px solid var(--faq-line);
  padding-top: var(--gap-3);
}

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

.page-faq .faq-stat__num {
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 700;
  color: var(--c-cyan);
  line-height: 1;
}

.page-faq .faq-stat__label {
  font-size: 12px;
  color: var(--c-mist);
  letter-spacing: .02em;
}

.page-faq .faq-hero__lamp {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero__lamp img {
  display: block;
  width: 100%;
  max-width: 360px;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 2px solid var(--faq-line-strong);
  border-radius: var(--r-cut);
  background: var(--c-night);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero__lamp figcaption {
  margin-top: var(--gap-2);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mist);
  max-width: 34ch;
  padding-left: var(--gap-2);
  border-left: 2px solid var(--c-coral);
}

/* ---------- 快速自助区 ---------- */
.page-faq .faq-self {
  padding-top: clamp(40px, 6vw, 76px);
}

.page-faq .faq-stack {
  margin-top: var(--gap-4);
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--r-cut);
  background: var(--c-panel);
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.page-faq .faq-item[open] {
  border-color: var(--faq-line-strong);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-snow);
}

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

.page-faq .faq-item__q:hover .faq-item__text {
  color: var(--c-cyan);
}

.page-faq .faq-item__idx {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-gold);
  padding-top: 4px;
}

.page-faq .faq-item__text {
  transition: color .18s ease;
}

.page-faq .faq-item__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 5px;
  flex: none;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--c-cyan);
  border-radius: 2px;
}

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

.page-faq .faq-item__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform .22s ease;
}

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

.page-faq .faq-item__a {
  margin: 0 18px 18px 18px;
  padding: 2px 0 2px 18px;
  border-left: 2px solid var(--c-cyan);
  color: var(--c-mist);
  font-size: 14.5px;
  line-height: 1.75;
}

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

/* ---------- 分类图标 ---------- */
.page-faq .faq-map {
  padding-top: clamp(44px, 6vw, 80px);
}

.page-faq .faq-map__figure {
  margin: 0 0 var(--gap-4);
  border: 2px solid var(--faq-line);
  border-radius: var(--r-cut);
  overflow: hidden;
  background: var(--c-night);
  box-shadow: var(--shadow-coral);
}

.page-faq .faq-map__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 420;
  object-fit: cover;
}

.page-faq .faq-map__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--gap-2);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-map__item {
  position: relative;
  padding: var(--gap-3);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-cut);
  background: linear-gradient(160deg, rgba(53, 224, 208, .08), rgba(10, 16, 48, 0) 62%), var(--c-panel);
}

.page-faq .faq-map__item::after {
  content: "";
  position: absolute;
  right: 12px;
  top: 12px;
  width: 8px;
  height: 8px;
  background: var(--c-gold);
  transform: rotate(45deg);
  opacity: .7;
}

.page-faq .faq-map__icon {
  display: inline-flex;
  color: var(--c-cyan);
  margin-bottom: 10px;
}

.page-faq .faq-map__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: -.01em;
  color: var(--c-snow);
}

.page-faq .faq-map__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 主题流 + 时间轴 ---------- */
.page-faq .faq-body {
  margin-top: clamp(44px, 6vw, 84px);
  display: grid;
  gap: var(--gap-4);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-body__stream {
  display: grid;
  gap: clamp(36px, 5vw, 64px);
}

.page-faq .faq-topic__head {
  position: relative;
  overflow: hidden;
  padding: var(--gap-3) var(--gap-3) var(--gap-3) calc(var(--gap-3) + 8px);
  border-left: 3px solid var(--c-cyan);
  background: var(--c-steppe);
  border-radius: 0 var(--r-cut) var(--r-cut) 0;
}

.page-faq .faq-topic__head::after {
  content: "";
  position: absolute;
  left: 0;
  top: -20%;
  width: 68%;
  height: 140%;
  background: linear-gradient(100deg, rgba(53, 224, 208, .18), rgba(53, 224, 208, 0) 68%);
  transform: skewY(-1.5deg);
  pointer-events: none;
}

.page-faq .faq-topic__num {
  display: block;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-gold);
  margin-bottom: 6px;
}

.page-faq .faq-topic__title {
  position: relative;
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.4vw, 30px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--c-snow);
}

.page-faq .faq-topic__desc {
  position: relative;
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-mist);
  max-width: 52ch;
}

.page-faq .faq-topic__list {
  margin-top: var(--gap-3);
  display: grid;
  gap: 10px;
}

.page-faq .faq-topic:nth-child(even) .faq-topic__head {
  border-left-color: var(--c-coral);
}

.page-faq .faq-topic:nth-child(even) .faq-topic__head::after {
  background: linear-gradient(100deg, rgba(255, 107, 74, .17), rgba(255, 107, 74, 0) 68%);
}

.page-faq .faq-timeline {
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: var(--gap-3) var(--gap-2);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-cut);
  background: var(--c-night);
  align-self: start;
}

.page-faq .faq-timeline__label {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-mist);
}

.page-faq .faq-timeline__rail {
  position: relative;
  width: 6px;
  height: clamp(150px, 22vh, 260px);
  border-radius: 999px;
  background: rgba(143, 160, 200, .16);
  overflow: hidden;
}

.page-faq .faq-timeline__bar {
  position: absolute;
  left: 0;
  right: 0;
  top: 10%;
  bottom: 6%;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--c-cyan), var(--c-gold), var(--c-coral));
}

.page-faq .faq-timeline__glow {
  position: absolute;
  left: -5px;
  right: -5px;
  top: 10%;
  bottom: 6%;
  border-radius: 999px;
  box-shadow: 0 0 22px var(--faq-glow);
  pointer-events: none;
}

.page-faq .faq-timeline__note {
  margin: 6px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-mist);
  text-align: center;
  max-width: 22ch;
}

/* ---------- 客服区 ---------- */
.page-faq .faq-desk {
  padding-top: clamp(48px, 7vw, 92px);
}

.page-faq .faq-desk__grid {
  margin-top: var(--gap-4);
  display: grid;
  gap: var(--gap-2);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-desk__card {
  padding: var(--gap-3);
  border-radius: var(--r-cut);
  border: 1px solid var(--faq-line);
  background: linear-gradient(200deg, rgba(255, 107, 74, .09), rgba(19, 28, 66, 0) 58%), var(--c-panel);
}

.page-faq .faq-desk__label {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--c-gold);
  margin: 0 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(245, 196, 81, .35);
}

.page-faq .faq-desk__value {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.6vw, 22px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--c-snow);
}

.page-faq .faq-desk__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--c-mist);
}

.page-faq .faq-desk__channels {
  margin-top: var(--gap-3);
  padding: var(--gap-3);
  border: 2px solid var(--faq-line-strong);
  border-radius: var(--r-cut);
  background: var(--c-steppe);
  display: grid;
  gap: 10px;
}

.page-faq .faq-desk__channel {
  margin: 0;
  font-size: 14px;
  color: var(--c-snow);
  word-break: break-word;
}

.page-faq .faq-desk__channel .mono {
  display: inline-block;
  min-width: 5.6em;
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-faq .faq-fallback {
  margin-top: var(--gap-3);
  border: 1px dashed var(--faq-line);
  border-radius: var(--r-cut);
  background: var(--c-night);
  padding: var(--gap-2) var(--gap-3);
}

.page-faq .faq-fallback__summary {
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  color: var(--c-coral);
  padding: 6px 0;
}

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

.page-faq .faq-fallback__summary::before {
  content: "▸ ";
  color: var(--c-cyan);
}

.page-faq .faq-fallback[open] .faq-fallback__summary::before {
  content: "▾ ";
}

.page-faq .faq-fallback__body {
  padding: var(--gap-2) 0 6px;
  border-top: 1px solid var(--faq-line);
  margin-top: 6px;
  color: var(--c-mist);
  font-size: 14px;
  line-height: 1.75;
}

.page-faq .faq-fallback__body p {
  margin: 0 0 var(--gap-2);
}

.page-faq .faq-fallback__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13.5px;
}

.page-faq .faq-fallback__links a {
  color: var(--c-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-map__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--gap-3);
  }

  .page-faq .faq-desk__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--gap-3);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: var(--gap-4);
  }

  .page-faq .faq-hero__lamp {
    justify-self: end;
  }

  .page-faq .faq-map__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-desk__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-item__q {
    font-size: 15.5px;
    padding: 18px 22px;
  }

  .page-faq .faq-item__a {
    margin: 0 22px 20px 22px;
    padding-left: 22px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 168px;
    gap: var(--gap-4);
    align-items: start;
  }

  .page-faq .faq-timeline {
    position: sticky;
    top: 40px;
  }
}

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