.page-faq {
  --faq-radius: 16px;
  --faq-hair: rgba(30, 58, 110, .85);
  --faq-cyan-wash: rgba(34, 224, 214, .08);
  --faq-amber-wash: rgba(255, 138, 61, .1);
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 34px 0 48px;
  overflow: hidden;
  background:
    radial-gradient(760px 400px at 88% -10%, rgba(34, 224, 214, .16), transparent 70%),
    radial-gradient(520px 320px at 6% 8%, rgba(194, 49, 74, .12), transparent 72%),
    var(--qw-deep);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--qw-cyan), transparent);
  opacity: .55;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--qw-gap-l);
  margin-top: 22px;
}

.page-faq .faq-hero__title {
  margin: 12px 0 18px;
  font-size: clamp(2rem, 7vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--qw-snow);
}

.page-faq .faq-hero__intro .qw-lead {
  max-width: 40rem;
  color: var(--qw-mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qw-gap-s);
  margin-top: var(--qw-gap-m);
}

.page-faq .faq-quick {
  display: grid;
  gap: 2px;
  padding: 18px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--faq-radius);
  background: linear-gradient(165deg, var(--qw-panel), rgba(18, 36, 79, .6));
}

.page-faq .faq-quick__title {
  margin: 0 0 10px;
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--qw-amber);
}

.page-faq .faq-quick .qw-quick__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 10px;
  padding: 12px 10px;
  border-radius: var(--qw-radius-s);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}

.page-faq .faq-quick .qw-quick__item:hover,
.page-faq .faq-quick .qw-quick__item:focus-visible {
  background: rgba(34, 224, 214, .07);
  border-color: rgba(34, 224, 214, .4);
  transform: translateX(2px);
}

.page-faq .faq-quick__no {
  grid-row: span 2;
  font-family: var(--qw-mono);
  font-size: 1.05rem;
  color: var(--qw-cyan);
  text-shadow: var(--qw-glow);
  align-self: center;
}

.page-faq .faq-quick__name {
  font-weight: 700;
  color: var(--qw-snow);
}

.page-faq .faq-quick__desc {
  font-size: .82rem;
  color: var(--qw-mist);
  line-height: 1.6;
}

/* ---------- 三步走法 ---------- */
.page-faq .faq-guide__lead {
  max-width: 44rem;
  margin: 14px 0 var(--qw-gap-l);
  color: var(--qw-mist);
  line-height: 1.85;
}

.page-faq .faq-steps {
  position: relative;
  display: grid;
  gap: var(--qw-gap-m);
}

.page-faq .faq-step {
  position: relative;
  display: block;
  padding: 24px 22px 20px;
  border-radius: var(--faq-radius);
  border: 1px solid var(--faq-hair);
  background: linear-gradient(170deg, rgba(18, 36, 79, .95), rgba(11, 23, 56, .95));
  text-decoration: none;
  overflow: hidden;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 68px;
  height: 3px;
  background: linear-gradient(90deg, var(--qw-cyan), transparent);
}

.page-faq .faq-step:nth-child(2)::before {
  background: linear-gradient(90deg, var(--qw-amber), transparent);
}

.page-faq .faq-step:nth-child(3)::before {
  background: linear-gradient(90deg, var(--qw-crimson), transparent);
}

.page-faq .faq-step__no {
  font-family: var(--qw-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--qw-cyan);
  text-shadow: var(--qw-glow);
}

.page-faq .faq-step__title {
  margin: 8px 0 10px;
  font-size: 1.12rem;
  line-height: 1.35;
  color: var(--qw-snow);
}

.page-faq .faq-step__text {
  margin: 0 0 16px;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--qw-mist);
}

.page-faq .faq-step__link {
  display: inline-block;
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--qw-amber);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(34, 224, 214, .55);
}

.page-faq .faq-guide__media {
  margin: var(--qw-gap-l) 0 0;
}

/* ---------- 纹理带 ---------- */
.page-faq .faq-band {
  height: 14px;
  opacity: .6;
}

/* ---------- 说明通道 ---------- */
.page-faq .faq-channel__text {
  max-width: 42rem;
  margin: 0 0 var(--qw-gap-m);
  color: var(--qw-mist);
  line-height: 1.9;
}

.page-faq .faq-channel__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--faq-hair);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--faq-hair);
}

.page-faq .faq-channel__list li {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  background: var(--qw-panel);
}

.page-faq .faq-channel__k {
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--qw-amber);
}

.page-faq .faq-channel__v {
  font-size: .9rem;
  line-height: 1.7;
  color: var(--qw-snow);
}

/* ---------- 问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 0;
  margin-top: var(--qw-gap-m);
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-grid {
  display: grid;
  gap: var(--qw-gap-m);
  margin-top: var(--qw-gap-m);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-hair);
  background: transparent;
  transition: background .25s ease;
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, var(--faq-cyan-wash), transparent 78%);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) 20px;
  align-items: start;
  gap: 10px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  justify-self: end;
  font-family: var(--qw-mono);
  font-size: 1.1rem;
  line-height: 1.4;
  color: var(--qw-cyan);
  transition: transform .2s ease;
}

.page-faq .faq-item[open] > summary::after {
  content: "–";
  color: var(--qw-amber);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--qw-amber);
  outline-offset: 2px;
  border-radius: var(--qw-radius-s);
}

.page-faq .faq-item__no {
  font-family: var(--qw-mono);
  font-size: .8rem;
  line-height: 1.8;
  color: var(--qw-cyan);
  letter-spacing: .06em;
}

.page-faq .faq-item__q {
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--qw-snow);
}

.page-faq .faq-item__a {
  padding: 0 4px 22px 48px;
  font-size: .92rem;
  line-height: 1.9;
  color: var(--qw-mist);
}

.page-faq .faq-item--block {
  border: 1px solid var(--faq-hair);
  border-radius: var(--faq-radius);
  background: var(--qw-panel);
  overflow: hidden;
}

.page-faq .faq-item--block[open] {
  border-color: rgba(34, 224, 214, .38);
  background: linear-gradient(160deg, var(--qw-card), var(--qw-panel));
}

.page-faq .faq-item--block > summary {
  padding: 16px 16px;
}

.page-faq .faq-item--block .faq-item__a {
  padding: 0 16px 20px 64px;
}

/* ---------- 反馈 ---------- */
.page-faq .faq-feedback {
  padding: 0 0 var(--qw-gap-2xl);
}

.page-faq .faq-feedback__stage {
  position: relative;
  padding: 46px 20px 40px;
  border-radius: 20px;
  background:
    linear-gradient(150deg, var(--qw-panel), var(--qw-card) 55%, rgba(194, 49, 74, .22));
  border: 1px solid var(--faq-hair);
  overflow: hidden;
}

.page-faq .faq-feedback__stage::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 224, 214, .18), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-feedback__grid {
  position: relative;
  display: grid;
  gap: var(--qw-gap-l);
}

.page-faq .faq-feedback__card {
  padding: 26px 22px;
  border-radius: var(--faq-radius);
  box-shadow: var(--qw-shadow);
}

.page-faq .faq-feedback__text {
  margin: 12px 0 var(--qw-gap-m);
  color: var(--qw-mist);
  line-height: 1.9;
}

.page-faq .faq-feedback__need {
  margin: 0 0 var(--qw-gap-m);
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-feedback__need li {
  position: relative;
  padding-left: 20px;
  font-size: .9rem;
  color: var(--qw-snow);
}

.page-faq .faq-feedback__need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 2px;
  background: var(--qw-amber);
}

.page-faq .faq-feedback__time {
  margin: 0 0 var(--qw-gap-m);
  font-size: .9rem;
  line-height: 1.85;
  color: var(--qw-mist);
}

.page-faq .faq-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qw-gap-s);
}

.page-faq .faq-feedback__mail {
  margin: var(--qw-gap-m) 0 0;
  font-size: .84rem;
  color: var(--qw-mist);
}

.page-faq .faq-feedback__mail a {
  color: var(--qw-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, .4);
}

.page-faq .faq-feedback__figure {
  margin: 0;
  border-radius: var(--faq-radius);
  overflow: hidden;
  border: 1px solid var(--faq-hair);
}

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

/* ---------- 移动端收束 ---------- */
@media (max-width: 719px) {
  .page-faq .faq-hero {
    padding-top: 24px;
  }

  .page-faq .faq-quick .qw-quick__item {
    grid-template-columns: 30px minmax(0, 1fr);
  }

  .page-faq .faq-item > summary {
    grid-template-columns: 30px minmax(0, 1fr) 18px;
  }

  .page-faq .faq-item__a,
  .page-faq .faq-item--block .faq-item__a {
    padding-left: 40px;
    padding-right: 8px;
  }

  .page-faq .faq-feedback__stage {
    padding: 32px 16px 28px;
  }
}

/* ---------- 桌面端 ---------- */
@media (min-width: 880px) {
  .page-faq .faq-hero {
    padding: 44px 0 64px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: var(--qw-gap-xl);
  }

  .page-faq .faq-quick {
    margin-top: 30px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--qw-gap-m);
    padding-top: 18px;
  }

  .page-faq .faq-steps::before {
    content: "";
    position: absolute;
    top: 0;
    left: 8%;
    right: 8%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(34, 224, 214, .6), rgba(255, 138, 61, .6), transparent);
  }

  .page-faq .faq-step:nth-child(2) {
    transform: translateY(26px);
  }

  .page-faq .faq-step:nth-child(2):hover,
  .page-faq .faq-step:nth-child(2):focus-visible {
    transform: translateY(20px);
  }

  .page-faq .faq-step:nth-child(3) {
    transform: translateY(-14px);
  }

  .page-faq .faq-step:nth-child(3):hover,
  .page-faq .faq-step:nth-child(3):focus-visible {
    transform: translateY(-20px);
  }

  .page-faq .faq-guide__media {
    margin-top: var(--qw-gap-2xl);
  }

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

  .page-faq .faq-feedback__stage {
    padding: 56px 40px 48px;
  }

  .page-faq .faq-feedback__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
    gap: var(--qw-gap-xl);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-quick .qw-quick__item,
  .page-faq .faq-item > summary::after {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-step:focus-visible {
    transform: none;
  }
}