.page-faq {
  --faq-border: 2px solid var(--border-subtle);
  --faq-shadow-open: 10px 10px 0 rgba(0, 229, 255, 0.14);
  position: relative;
  background:
    radial-gradient(52% 30% at 86% 0%, rgba(26, 27, 75, 0.82), transparent 70%),
    radial-gradient(36% 26% at 6% 26%, rgba(0, 229, 255, 0.05), transparent 65%),
    var(--space-navy);
}

.page-faq .content-shell {
  position: relative;
  padding-top: 28px;
  padding-bottom: 84px;
}

.page-faq .breadcrumbs {
  margin-bottom: 34px;
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-height) + 22px);
}

.page-faq .faq-hero {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: 48px;
  padding: 36px 34px 38px;
  border: var(--faq-border);
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(26, 27, 75, 0.78), rgba(11, 14, 26, 0.92)),
    var(--surface-alt);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 60px;
  height: 60px;
  border-top: 5px solid var(--gold);
  border-left: 5px solid var(--bright-cyan);
  border-radius: 24px 0 0 0;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.24), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__copy {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  padding: 6px 14px;
  border: 1px solid rgba(240, 185, 11, 0.5);
  border-radius: 999px;
  color: var(--gold-light);
  font-size: 13px;
  letter-spacing: 0.12em;
}

.page-faq .faq-hero__eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 12px rgba(240, 185, 11, 0.8);
}

.page-faq .faq-hero h1 {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 4vw, 2.55rem);
  line-height: 1.22;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.page-faq .faq-hero__copy > p:last-child {
  margin: 0;
  max-width: 680px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-hero__art {
  position: relative;
  z-index: 1;
  flex: 0 0 250px;
  min-height: 118px;
  align-self: flex-end;
}

.page-faq .faq-hero__art svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.page-faq .faq-index__heading {
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.page-faq .faq-index__list {
  display: flex;
  align-items: stretch;
  gap: 10px;
  overflow-x: auto;
  padding: 2px 2px 10px;
  scroll-snap-type: x proximity;
}

.page-faq .faq-index__item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 10px 14px;
  border: var(--faq-border);
  border-radius: 14px;
  background: var(--surface-alt);
  color: var(--text-primary);
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 14px;
  scroll-snap-align: start;
  transition:
    border-color var(--transition),
    background-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.page-faq .faq-index__item:hover {
  border-color: var(--bright-cyan);
  background: var(--surface-alt);
  transform: translateY(-2px);
  box-shadow: 6px 6px 0 rgba(0, 229, 255, 0.1);
}

.page-faq .faq-index__item:focus-visible {
  outline: 3px solid var(--bright-cyan);
  outline-offset: 2px;
}

.page-faq .faq-index__num {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--glow-gradient);
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  transition: background var(--transition), color var(--transition);
}

.page-faq .faq-index__item:hover .faq-index__num,
.page-faq .faq-index__item:focus-visible .faq-index__num {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #0B0E1A;
}

.page-faq .faq-index__count {
  margin-left: auto;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.1);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 400;
}

.page-faq .faq-index__note {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--border-subtle);
  border-right-width: 4px;
  border-right-color: var(--gold);
  border-radius: 14px;
  background: var(--surface-alt);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.page-faq .faq-index__note a {
  color: var(--bright-cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq .faq-panel {
  display: flex;
  flex-direction: column;
  gap: 40px;
  min-width: 0;
}

.page-faq .faq-highlight {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  padding: 24px 20px 18px;
  border: var(--faq-border);
  border-radius: 16px;
  background:
    linear-gradient(90deg, rgba(240, 185, 11, 0.08), transparent 45%),
    var(--surface-alt);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-highlight::before {
  content: "关键速览";
  position: absolute;
  top: -13px;
  left: 18px;
  padding: 4px 12px;
  border: 2px solid var(--gold);
  border-radius: 999px;
  background: var(--space-navy);
  color: var(--gold-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.page-faq .faq-highlight__metric {
  flex: 1 1 130px;
  display: grid;
  gap: 4px;
  padding: 8px 16px;
  border-left: 2px solid var(--border-subtle);
}

.page-faq .faq-highlight__metric:first-of-type {
  border-left: 0;
}

.page-faq .faq-highlight__num {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--gold-light);
}

.page-faq .faq-highlight__label {
  font-size: 13px;
  color: var(--text-secondary);
}

.page-faq .faq-highlight__btn {
  flex: 1 1 100%;
  justify-content: center;
  margin-top: 6px;
}

.page-faq .faq-section {
  padding-bottom: 36px;
  margin-bottom: 36px;
  border-bottom: 1px dashed var(--border-subtle);
}

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

.page-faq .faq-section__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.page-faq .faq-section__head::after {
  content: "";
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--bright-cyan), transparent);
  opacity: 0.5;
}

.page-faq .faq-section__num {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border: 2px solid var(--bright-cyan);
  border-radius: 50%;
  background: var(--surface-alt);
  color: var(--bright-cyan);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
}

.page-faq .faq-section__head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  letter-spacing: 0.02em;
  color: var(--text-primary);
  transition: color var(--transition);
}

.page-faq .faq-section:target .faq-section__head h2 {
  color: var(--bright-cyan);
}

.page-faq .faq-section:target {
  animation: pageFaqTargetFlash 800ms ease-out;
}

@keyframes pageFaqTargetFlash {
  from { background: rgba(0, 229, 255, 0.07); }
  to   { background: transparent; }
}

.page-faq .faq-item {
  margin-bottom: 16px;
  border: var(--faq-border);
  border-radius: var(--radius);
  background: var(--surface-alt);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.page-faq .faq-item[open] {
  border-color: var(--bright-cyan);
  box-shadow: var(--faq-shadow-open);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 18px 20px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-primary);
  transition:
    color var(--transition),
    background-color var(--transition);
}

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

.page-faq .faq-item summary:hover {
  color: var(--bright-cyan);
  background: rgba(0, 229, 255, 0.04);
}

.page-faq .faq-item summary:focus-visible {
  outline: 3px solid rgba(0, 229, 255, 0.6);
  outline-offset: -3px;
}

.page-faq .faq-item__q {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  min-width: 28px;
  height: 28px;
  padding: 0 6px;
  border: 1px solid rgba(240, 185, 11, 0.4);
  border-radius: 8px;
  background: rgba(240, 185, 11, 0.14);
  color: var(--gold-light);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition);
}

.page-faq .faq-item[open] .faq-item__q {
  border-color: transparent;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #0B0E1A;
}

.page-faq .faq-item summary::before {
  content: "";
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 12px rgba(240, 185, 11, 0.7);
  transition:
    background var(--transition),
    box-shadow var(--transition);
}

.page-faq .faq-item[open] summary::before {
  background: var(--bright-cyan);
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.7);
}

.page-faq .faq-item summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-heading);
  font-size: 20px;
  line-height: 1;
  color: var(--bright-cyan);
  transition:
    transform var(--transition),
    color var(--transition);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--gold);
}

.page-faq .faq-answer {
  padding: 18px 22px 22px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.page-faq .faq-answer > :first-child {
  margin-top: 0;
}

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

.page-faq .faq-answer a {
  color: var(--bright-cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq .faq-item[open] .faq-answer {
  animation: pageFaqReveal 240ms ease-out;
}

@keyframes pageFaqReveal {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-steps {
  margin: 16px 0;
  padding: 0;
  list-style: none;
  counter-reset: pageFaqStep;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: pageFaqStep;
  margin-bottom: 10px;
  padding: 12px 16px 12px 52px;
  border: 2px solid var(--border-subtle);
  border-radius: 12px;
  background: var(--space-navy);
  color: var(--text-primary);
}

.page-faq .faq-steps li::before {
  content: counter(pageFaqStep);
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--glow-gradient);
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
}

.page-faq .faq-contact-list {
  display: grid;
  gap: 10px;
  margin: 16px 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact-list li {
  padding: 10px 14px;
  border-left: 4px solid var(--bright-cyan);
  border-radius: 8px;
  background: var(--space-navy);
  color: var(--text-primary);
  font-size: 15px;
}

.page-faq .faq-contact-list strong {
  font-weight: 600;
  color: var(--text-primary);
}

.page-faq .faq-figure {
  margin: 4px 0 22px;
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-alt);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--border-subtle);
  font-size: 14px;
  color: var(--text-secondary);
}

.page-faq .faq-figure--contact {
  max-width: 440px;
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 48px;
  }

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

  .page-faq .faq-index__list {
    position: relative;
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index__list::before {
    content: "";
    position: absolute;
    left: 21px;
    top: 48px;
    bottom: 56px;
    width: 2px;
    background: linear-gradient(180deg, var(--deep-blue), var(--bright-cyan), transparent);
    opacity: 0.45;
    border-radius: 999px;
  }

  .page-faq .faq-index__item {
    width: 100%;
    background: var(--space-navy);
  }

  .page-faq .faq-highlight__btn {
    flex: 0 0 auto;
    margin: 0 0 0 8px;
  }
}

@media (max-width: 640px) {
  .page-faq .faq-hero {
    padding: 28px 22px 30px;
  }

  .page-faq .faq-hero__art {
    display: none;
  }

  .page-faq .faq-hero h1 {
    font-size: clamp(1.6rem, 6vw, 2rem);
  }

  .page-faq .faq-hero__copy > p:last-child {
    font-size: 15px;
  }

  .page-faq .faq-highlight__metric {
    flex: 1 1 100%;
    border-left: 0;
    border-top: 2px solid var(--border-subtle);
    padding: 10px 4px;
  }

  .page-faq .faq-highlight__metric:first-of-type {
    border-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-answer,
  .page-faq .faq-section:target {
    animation: none;
  }

  .page-faq .faq-item summary::after,
  .page-faq .faq-item summary::before,
  .page-faq .faq-index__item,
  .page-faq .faq-section__head h2 {
    transition: none;
  }
}