.page-faq {
  --faq-line: rgba(217, 169, 78, 0.26);
  --faq-line-soft: rgba(127, 143, 166, 0.22);
  --faq-body: rgba(234, 242, 248, 0.84);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(1.75rem, 5vw, 3.25rem);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-faq .faq-hero h1 {
  margin: 0.6rem 0 1.25rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 3.75rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--cloud);
}

.page-faq .faq-hero h1 em {
  font-style: normal;
  color: var(--gold);
}

.page-faq .faq-hero .lede {
  max-width: 38em;
  margin: 0;
  color: var(--faq-body);
}

.page-faq .faq-hero__media {
  margin: 0;
  border: var(--hairline);
  background: linear-gradient(160deg, var(--deep), var(--abyss));
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

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

@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }
}

/* ---------- 前置检查 ---------- */
.page-faq .faq-check {
  padding-top: clamp(2.5rem, 6vw, 4rem);
}

.page-faq .faq-check__grid {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-check__cell {
  background: var(--deep);
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.page-faq .faq-check__cell .mono {
  display: block;
  font-size: var(--fs-26);
  letter-spacing: 0.08em;
  color: var(--gold);
  line-height: 1;
}

.page-faq .faq-check__cell h3 {
  margin: 0.85rem 0 0.6rem;
  font-family: var(--font-head);
  font-size: var(--fs-20);
  font-weight: 800;
  color: var(--cloud);
}

.page-faq .faq-check__cell p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--copper);
}

@media (min-width: 780px) {
  .page-faq .faq-check__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  padding-top: clamp(3rem, 8vw, 5.5rem);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: clamp(0.75rem, 2vw, 1.25rem);
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: var(--fs-34);
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: var(--fs-26);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--cloud);
}

.page-faq .faq-list {
  margin-top: 0.5rem;
}

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

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 3px;
  background: var(--aqua);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 180ms var(--ease);
}

.page-faq .faq-item[open]::before {
  transform: scaleY(1);
}

.page-faq .faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 1.25rem 3rem 1.25rem 1.25rem;
  font-family: var(--font-head);
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.7;
  color: var(--cloud);
  transition: color 180ms var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  line-height: 1;
  color: var(--gold);
  transition: color 180ms var(--ease);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--aqua);
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.page-faq .faq-item__body {
  padding: 0 2rem 1.5rem 1.25rem;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.95;
  color: var(--faq-body);
}

@media (min-width: 780px) {
  .page-faq .faq-item summary {
    padding: 1.35rem 3rem 1.35rem 1.5rem;
  }

  .page-faq .faq-item__body {
    padding: 0 4.5rem 1.75rem 1.5rem;
  }

  .page-faq .faq-item__body p {
    max-width: 40em;
  }
}

/* ---------- 联系收束 ---------- */
.page-faq .faq-contact {
  padding-top: clamp(3.5rem, 10vw, 7rem);
  padding-bottom: clamp(3.5rem, 9vw, 6rem);
}

.page-faq .faq-contact__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  padding: clamp(1.75rem, 5vw, 3.5rem);
  border: 1px solid var(--faq-line);
  background:
    radial-gradient(120% 100% at 6% 0%, rgba(23, 226, 180, 0.1), transparent 58%),
    linear-gradient(150deg, var(--deep), var(--abyss));
  box-shadow: var(--shadow-card);
}

.page-faq .faq-contact__panel h2 {
  margin: 0.6rem 0 1rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.2vw, 2.4rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--cloud);
}

.page-faq .faq-contact__copy p {
  margin: 0 0 1.75rem;
  font-size: var(--fs-16);
  line-height: 1.95;
  color: var(--faq-body);
  max-width: 40em;
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.page-faq .faq-contact__media {
  margin: 0;
  border: 1px solid var(--faq-line-soft);
  overflow: hidden;
}

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

@media (min-width: 900px) {
  .page-faq .faq-contact__panel {
    grid-template-columns: 6fr 5fr;
    align-items: center;
  }
}

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