.page-faq {
  --faq-soft: #C3D0E4;
  --faq-card: #131E33;
  --faq-card-hi: #18253D;
  position: relative;
  background:
    radial-gradient(120% 70% at 82% -8%, rgba(37, 225, 212, 0.10), transparent 62%),
    radial-gradient(90% 60% at -5% 100%, rgba(255, 155, 61, 0.06), transparent 70%),
    var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1100px;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(43, 58, 87, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 58, 87, 0.32) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  z-index: 0;
}

.page-faq > section {
  position: relative;
  z-index: 1;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: 78px 0 54px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 26px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  max-width: 24ch;
  font-size: clamp(31px, 4.4vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: 17px;
  line-height: 1.82;
  color: var(--faq-soft);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-hero__meta-item b {
  margin-right: 4px;
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 三步自查 ---------- */

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 22px 22px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(22, 34, 58, 0.92), rgba(14, 23, 41, 0.78));
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-step:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 225, 212, 0.42);
}

.page-faq .faq-step__num {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 10px;
  border: 1px solid rgba(37, 225, 212, 0.42);
  border-radius: 999px;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-faq .faq-step h3 {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.4;
  font-weight: 700;
}

.page-faq .faq-step p {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.76;
  color: var(--faq-soft);
}

.page-faq .faq-step__signal {
  margin: 0;
  padding-left: 10px;
  border-left: 2px solid var(--orange);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

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

.page-faq .faq-check__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--rail-bg);
  object-fit: cover;
}

/* ---------- 问答区 ---------- */

.page-faq .faq-qa__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-index {
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(14, 23, 41, 0.72);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-size: 12.5px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -1px;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-index__link .mono {
  color: var(--cyan);
  font-size: 12.5px;
  letter-spacing: 0.1em;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  border-left-color: var(--cyan);
  background-color: rgba(37, 225, 212, 0.07);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-index__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-answer-group {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--bar-h) + 20px);
}

.page-faq .faq-answer-group:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-answer-group__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-answer-group__tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  background: var(--cyan);
  color: var(--ink);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-faq .faq-item {
  margin-bottom: 14px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-left-width: 2px;
  border-radius: var(--radius);
  background: var(--faq-card);
  transition: transform 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-item:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 225, 212, 0.4);
  background: var(--faq-card-hi);
}

.page-faq .faq-item__q {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .faq-item__a {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-soft);
}

/* ---------- 协助渠道 ---------- */

.page-faq .faq-assist__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .faq-channel {
  margin-bottom: 16px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--faq-card);
}

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

.page-faq .faq-channel h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
}

.page-faq .faq-channel__value {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 18px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  word-break: break-all;
}

.page-faq .faq-channel p {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-soft);
}

.page-faq .faq-channel--note {
  border-left: 2px solid var(--orange);
}

.page-faq .faq-channel--note .btn {
  margin-top: 6px;
}

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

.page-faq .faq-assist__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--rail-bg);
  object-fit: cover;
}

/* ---------- 相关入口 ---------- */

.page-faq .faq-more__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-more__item a {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(14, 23, 41, 0.6);
  color: inherit;
  text-decoration: none;
  transition: transform 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-more__item a:hover,
.page-faq .faq-more__item a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: var(--faq-card-hi);
}

.page-faq .faq-more__item a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-more__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--cyan-soft);
}

.page-faq .faq-more__desc {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-more__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero {
    padding: 96px 0 62px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-qa__layout {
    grid-template-columns: minmax(216px, 4fr) 8fr;
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-faq .faq-assist__layout {
    grid-template-columns: 7fr 5fr;
    gap: 44px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-item,
  .page-faq .faq-more__item a {
    transition: none;
  }

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