.page-faq {
  background: var(--ink-800);
  color: var(--ice);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink-900);
  border-bottom: 2px solid rgba(0, 240, 200, 0.22);
  padding: calc(var(--header-h) + 40px) 0 56px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 240, 200, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 200, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -22%;
  right: -18%;
  width: min(70vw, 640px);
  aspect-ratio: 1 / 1;
  pointer-events: none;
  background: radial-gradient(circle at 32% 32%, rgba(0, 240, 200, 0.18), rgba(0, 240, 200, 0) 62%);
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 30px;
  font-family: var(--font-data);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .breadcrumbs a {
  color: var(--cyan);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover {
  text-decoration: underline;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 40px;
}

.page-faq .faq-hero .display-title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.3rem, 8.6vw, 4.9rem);
  line-height: 1;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-faq .faq-hero .lead {
  max-width: 48ch;
  margin: 0 0 30px;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  line-height: 1.85;
  color: var(--ice);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-aside {
  border: 2px solid rgba(0, 240, 200, 0.45);
  background: rgba(11, 42, 36, 0.76);
  box-shadow: var(--shadow-cyan);
  padding: 24px 22px;
}

.page-faq .faq-aside-title {
  margin: 0 0 18px;
  font-size: 0.7rem;
  letter-spacing: 0.26em;
  color: var(--cyan);
}

.page-faq .faq-stat-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-stat {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(111, 140, 134, 0.5);
}

.page-faq .faq-stat:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-stat-value {
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-faq .faq-stat-label {
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-aside-note {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-aside-note .mono {
  color: var(--cyan);
  word-break: break-all;
}

/* ============ 主体两栏 ============ */
.page-faq .faq-body {
  background: var(--ink-800);
}

.page-faq .faq-layout {
  display: grid;
  gap: 36px;
  padding-top: 52px;
  padding-bottom: 72px;
}

.page-faq .faq-index {
  border-top: 3px solid var(--cyan);
  padding-top: 18px;
}

.page-faq .faq-index-title {
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(111, 140, 134, 0.28);
  color: var(--ice);
  text-decoration: none;
  font-size: 0.92rem;
  line-height: 1.45;
  transition: color 0.16s ease, padding-left 0.16s ease;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--cyan);
  padding-left: 6px;
}

.page-faq .faq-index-link .index-num {
  flex: none;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-faq .faq-index-note {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-questions {
  display: grid;
  gap: 56px;
  min-width: 0;
}

/* ============ 分组 ============ */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid rgba(0, 240, 200, 0.28);
}

.page-faq .faq-icon {
  grid-row: span 2;
  width: 36px;
  height: 36px;
  padding: 7px;
  border: 2px solid rgba(0, 240, 200, 0.5);
  color: var(--cyan);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-faq .faq-group-head .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.45rem, 3.8vw, 2.1rem);
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-group-note {
  grid-column: 2;
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-group-body {
  display: grid;
  gap: 28px;
  min-width: 0;
}

/* ============ 问答手风琴 ============ */
.page-faq .faq-list {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-faq .accordion-item {
  background: var(--paper);
  color: var(--ink-900);
  border-left: 6px solid var(--steel);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.32);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.page-faq .accordion-item:hover {
  transform: translateY(-2px);
}

.page-faq .accordion-item[data-open] {
  border-left-color: var(--cyan);
  box-shadow: 6px 6px 0 rgba(0, 240, 200, 0.26);
}

.page-faq .accordion-heading {
  margin: 0;
  font-size: inherit;
}

.page-faq .accordion-trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  width: 100%;
  padding: 18px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-900);
}

.page-faq .accordion-trigger:focus-visible {
  outline: 2px solid var(--cyan-dim);
  outline-offset: -4px;
}

.page-faq .q-index {
  flex: none;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--rust);
  transition: color 0.18s ease;
}

.page-faq .accordion-trigger[aria-expanded="true"] .q-index {
  color: var(--cyan-dim);
}

.page-faq .q-sign {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
}

.page-faq .q-sign::before,
.page-faq .q-sign::after {
  content: "";
  position: absolute;
  background: var(--ink-800);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .q-sign::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .q-sign::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .accordion-trigger[aria-expanded="true"] .q-sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .accordion-panel {
  padding: 16px 18px 20px;
  border-top: 1px dashed rgba(4, 21, 19, 0.2);
}

.page-faq .accordion-panel p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.9;
  color: var(--ink-800);
}

.page-faq .accordion-item:has(.accordion-trigger[aria-expanded="false"]) .accordion-panel {
  display: none;
}

/* ============ 配图 ============ */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 2px solid rgba(0, 240, 200, 0.35);
  background: var(--ink-900);
  object-fit: cover;
}

.page-faq .media-caption {
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 0.74rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ============ 收尾 ============ */
.page-faq .faq-cta {
  background: var(--ink-900);
  border-top: 2px solid rgba(255, 138, 61, 0.35);
  padding: 60px 0 72px;
}

.page-faq .faq-cta-inner {
  display: grid;
  gap: 26px;
}

.page-faq .faq-cta .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-cta .section-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.55rem, 4.4vw, 2.4rem);
  line-height: 1.15;
  color: var(--paper);
}

.page-faq .faq-cta-copy p {
  margin: 0;
  max-width: 44ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ice);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-cta-contact {
  list-style: none;
  margin: 0;
  padding: 20px 0 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid rgba(111, 140, 134, 0.32);
}

.page-faq .faq-cta-contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  font-size: 0.84rem;
  color: var(--mist);
}

.page-faq .faq-cta-contact .mono {
  color: var(--cyan);
  word-break: break-all;
}

/* ============ 媒体查询 ============ */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-h) + 56px) 0 68px;
  }

  .page-faq .faq-layout {
    padding-top: 64px;
  }

  .page-faq .accordion-trigger {
    padding: 20px 22px;
  }

  .page-faq .accordion-panel {
    padding: 18px 22px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.82fr);
    gap: 64px;
    align-items: end;
  }

  .page-faq .faq-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 64px;
    padding-top: 76px;
    padding-bottom: 96px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-faq .faq-cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px 56px;
    align-items: end;
  }

  .page-faq .faq-cta-contact {
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px 32px;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-group-body {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-figure {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}