.page-faq {
  --faq-gold: rgba(212, 175, 55, 0.38);
  --faq-neon: rgba(155, 89, 182, 0.26);
  --faq-cream-dim: rgba(245, 245, 220, 0.08);
  --faq-grid-line: rgba(245, 245, 220, 0.035);
  position: relative;
  min-height: 100vh;
  background:
    radial-gradient(circle at 82% 6%, rgba(155, 89, 182, 0.13) 0%, transparent 46%),
    radial-gradient(circle at 8% 42%, rgba(11, 28, 62, 0.6) 0%, transparent 42%),
    linear-gradient(180deg, var(--color-space-deep) 0%, var(--color-space) 48%, var(--color-space-deep) 100%);
  overflow: hidden;
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}

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

.page-faq .faq-hero {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-top: 1.25rem;
  padding-bottom: 0.75rem;
}

.page-faq .faq-hero__text {
  flex: 1 1 auto;
}

.page-faq .faq-hero__title {
  margin: 0.75rem 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 6.8vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--color-white);
}

.page-faq .faq-hero__lead {
  max-width: 56ch;
  margin: 0 0 1.4rem;
  color: rgba(245, 245, 220, 0.76);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.9;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 0 0;
  margin: 0;
  list-style: none;
  color: var(--color-cream);
  font-family: var(--font-body);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.page-faq .faq-hero__meta li + li::before {
  content: "·";
  margin-right: 0.35rem;
  color: var(--color-gold);
}

.page-faq .faq-hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-faq .faq-hero__icon {
  width: clamp(180px, 52vw, 240px);
  height: clamp(180px, 52vw, 240px);
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--faq-gold);
  box-shadow:
    0 0 0 10px rgba(155, 89, 182, 0.08),
    0 0 64px rgba(155, 89, 182, 0.28),
    0 0 18px rgba(212, 175, 55, 0.1);
}

.page-faq .faq-categories__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
}

.page-faq .faq-cat {
  --cat: var(--color-gold);
  position: relative;
  padding: 1.5rem 1.4rem 1.2rem;
  border-radius: 18px;
  overflow: hidden;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-cat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--cat, var(--color-gold));
  opacity: 0.7;
}

.page-faq .faq-cat:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(3, 7, 18, 0.44);
  border-color: var(--faq-gold);
}

.page-faq .faq-cat--login {
  --cat: var(--color-gold);
}

.page-faq .faq-cat--version {
  --cat: var(--color-neon);
}

.page-faq .faq-cat--data {
  --cat: var(--color-lake);
}

.page-faq .faq-cat--sync {
  --cat: var(--color-olive);
}

.page-faq .faq-cat__num {
  display: block;
  margin-bottom: 1.1rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--cat, var(--color-gold));
}

.page-faq .faq-cat .card__title {
  margin: 0 0 0.35rem;
  color: var(--color-white);
  font-size: 1.05rem;
}

.page-faq .faq-cat .card__text {
  margin: 0 0 0.8rem;
  color: rgba(245, 245, 220, 0.62);
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.6;
}

.page-faq .faq-cat__link {
  color: var(--cat, var(--color-gold));
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.page-faq .faq-archive {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.2rem;
  align-items: start;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.page-faq .faq-group {
  margin-bottom: 2.4rem;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.2rem 0 0.9rem;
  margin-bottom: 1.1rem;
  border-bottom: 1px solid var(--faq-cream-dim);
}

.page-faq .faq-group__no {
  flex: 0 0 auto;
  min-width: 2.2rem;
  height: 2.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--faq-gold);
  border-radius: 50%;
  color: var(--color-gold);
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.page-faq .faq-group__title {
  margin: 0 0 0.18rem;
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 1.06rem;
}

.page-faq .faq-group__desc {
  margin: 0;
  color: rgba(245, 245, 220, 0.52);
  font-family: var(--font-body);
  font-size: 0.8rem;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-cream-dim);
  border-radius: 14px;
  margin-bottom: 0.7rem;
  background: rgba(245, 245, 220, 0.028);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-item:hover {
  background: rgba(245, 245, 220, 0.055);
}

.page-faq .faq-item[open] {
  border-color: rgba(212, 175, 55, 0.34);
  background: rgba(245, 245, 220, 0.04);
}

.page-faq .faq-item summary {
  position: relative;
  list-style: none;
  padding: 1.15rem 1.3rem 1.15rem 3.4rem;
  cursor: pointer;
  color: var(--color-cream);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.55;
  transition: color 0.2s ease;
}

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

.page-faq .faq-item summary::before {
  content: "问";
  position: absolute;
  left: 1.05rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--faq-neon);
  color: var(--color-neon);
  font-family: var(--font-display);
  font-size: 0.74rem;
  font-weight: 700;
}

.page-faq .faq-item[open] summary {
  color: var(--color-white);
  border-bottom: 1px solid var(--faq-cream-dim);
}

.page-faq .faq-item summary:hover {
  color: var(--color-gold);
}

.page-faq .faq-item__answer {
  border-left: 3px solid var(--color-gold);
  margin: 0 1.2rem 1.2rem 3.4rem;
  padding: 0.55rem 0 0.15rem 1.2rem;
  color: rgba(245, 245, 220, 0.7);
  font-family: var(--font-body);
  font-size: 0.86rem;
  line-height: 1.9;
}

.page-faq .faq-item__answer p {
  margin: 0 0 0.6rem;
}

.page-faq .faq-item__answer ul {
  margin: 0 0 0.7rem;
  padding-left: 1.15rem;
}

.page-faq .faq-item__answer li {
  margin-bottom: 0.3rem;
}

.page-faq .faq-item__answer a {
  color: var(--color-lake);
  text-underline-offset: 3px;
  text-decoration-color: rgba(26, 188, 156, 0.5);
}

.page-faq .faq-item__figure {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1rem 0 0.6rem;
  border-radius: 12px;
  border: 1px solid var(--faq-cream-dim);
  object-fit: cover;
}

.page-faq .faq-archive__side {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.page-faq .faq-sidecard {
  padding: 1.45rem 1.4rem;
  border-radius: 18px;
  background:
    linear-gradient(160deg, rgba(245, 245, 220, 0.055), rgba(245, 245, 220, 0.018)),
    rgba(11, 28, 62, 0.5);
}

.page-faq .faq-sidecard__title {
  margin: 0.35rem 0 0.5rem;
  color: var(--color-white);
  font-size: 1.02rem;
}

.page-faq .faq-sidecard__text {
  margin: 0 0 0.9rem;
  color: rgba(245, 245, 220, 0.62);
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.7;
}

.page-faq .faq-sidecard__status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.5rem 0 0.8rem;
  color: var(--color-cream);
  font-family: var(--font-body);
  font-size: 0.85rem;
}

.page-faq .faq-sidecard__dl {
  margin: 1rem 0 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--faq-cream-dim);
}

.page-faq .faq-sidecard__dl > div {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.45rem;
  font-size: 0.82rem;
}

.page-faq .faq-sidecard__dl dt {
  flex: 0 0 2.2rem;
  color: rgba(245, 245, 220, 0.45);
  font-family: var(--font-body);
}

.page-faq .faq-sidecard__dl dd {
  margin: 0;
  color: rgba(245, 245, 220, 0.76);
  font-family: var(--font-body);
  line-height: 1.6;
}

.page-faq .faq-sidecard__dl a {
  color: var(--color-lake);
  text-underline-offset: 3px;
}

.page-faq .faq-sidecard__list {
  margin: 0.4rem 0 0.8rem;
  padding: 0;
  list-style: none;
  color: rgba(245, 245, 220, 0.62);
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.9;
}

.page-faq .faq-sidecard__list li::before {
  content: "▹";
  margin-right: 0.5rem;
  color: var(--color-gold);
}

.page-faq .faq-sidecard > a {
  display: inline-block;
  margin-top: 0.3rem;
  color: var(--color-gold);
  font-family: var(--font-body);
  font-size: 0.8rem;
  text-underline-offset: 3px;
}

.page-faq .faq-sidecard__links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.3rem;
}

.page-faq .faq-sidecard__links a {
  color: rgba(245, 245, 220, 0.72);
  font-family: var(--font-body);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-faq .faq-sidecard__links a::before {
  content: "→ ";
  color: var(--color-gold);
}

.page-faq .faq-sidecard__links a:hover {
  color: var(--color-lake);
  padding-left: 0.35rem;
}

.page-faq .faq-sidecard .btn {
  width: 100%;
  margin: 0.2rem 0 0.4rem;
}

.page-faq .faq-sidecard + .faq-sidecard {
  margin-top: 0;
}

.page-faq .faq-contact {
  padding-top: 1rem;
}

.page-faq .faq-contact__inner {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  padding: 2rem 1.6rem;
  border: 1px solid var(--faq-gold);
  border-radius: 24px;
  background:
    radial-gradient(circle at 12% 20%, rgba(155, 89, 182, 0.2) 0%, transparent 52%),
    linear-gradient(135deg, rgba(11, 28, 62, 0.82) 0%, rgba(8, 18, 38, 0.95) 100%);
  box-shadow: 0 20px 56px rgba(3, 7, 18, 0.5);
}

.page-faq .faq-contact__text h2 {
  margin: 0.35rem 0 0.6rem;
  color: var(--color-white);
  font-size: clamp(1.35rem, 3.4vw, 1.8rem);
  line-height: 1.3;
}

.page-faq .faq-contact__text p {
  margin: 0;
  color: rgba(245, 245, 220, 0.66);
  font-family: var(--font-body);
  font-size: 0.86rem;
  line-height: 1.8;
  max-width: 52ch;
}

.page-faq .faq-contact__text a {
  color: var(--color-lake);
  text-underline-offset: 3px;
}

.page-faq .faq-contact__actions {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.page-faq .faq-contact__actions .btn {
  white-space: nowrap;
}

@media (min-width: 680px) {
  .page-faq .faq-categories__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 2.2rem 2.4rem;
  }

  .page-faq .faq-contact__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }

  .page-faq .faq-hero__text {
    padding: 1rem 0;
  }

  .page-faq .faq-hero__visual {
    flex: 0 0 auto;
  }

  .page-faq .faq-sidecard {
    padding: 1.6rem 1.5rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-categories__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.1rem;
  }

  .page-faq .faq-archive {
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 2.6rem;
  }

  .page-faq .faq-archive__side {
    position: sticky;
    top: 5.4rem;
    gap: 1.25rem;
  }

  .page-faq .faq-contact__actions {
    flex: 0 0 auto;
  }
}