.page-faq {
  --faq-bp: 3px solid var(--border);
  --faq-bp-sm: 2px solid var(--border);
  --faq-shadow: 6px 6px 0 rgba(0, 0, 0, .3), 12px 12px 0 rgba(0, 180, 255, .04);
  --faq-chip-bg: rgba(0, 180, 255, .07);
  --faq-chip-bd: 1px solid rgba(0, 180, 255, .28);
  background-color: var(--bg-primary);
  background-image: radial-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 26px 26px;
  color: var(--text-high);
  padding-bottom: clamp(48px, 6vw, 88px);
  overflow-x: clip;
  outline: none;
}

.page-faq .breadcrumb {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 22px var(--shell-gap) 0;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-data);
  font-size: var(--text-xs);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.page-faq .breadcrumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-faq .breadcrumb-list li::after {
  content: "/";
  color: var(--text-low);
}

.page-faq .breadcrumb-list li:last-child::after {
  display: none;
}

.page-faq .breadcrumb-list a {
  color: var(--text-mid);
  text-decoration: none;
  transition: color .2s var(--ease-out);
}

.page-faq .breadcrumb-list a:hover {
  color: var(--accent-blue);
}

.page-faq .breadcrumb-list [aria-current="page"] {
  color: var(--text-high);
}

.page-faq .faq-hero {
  position: relative;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 36px var(--shell-gap) 8px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, transparent 0, transparent 22px, rgba(255, 90, 0, .035) 22px, rgba(255, 90, 0, .035) 24px);
  pointer-events: none;
}

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

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

.page-faq .page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-family: var(--font-data);
  font-size: var(--text-sm);
  letter-spacing: .1em;
  color: var(--accent-blue);
}

.page-faq .faq-kicker-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  padding: 6px 10px;
  background: var(--accent-orange);
  color: #fff;
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: .18em;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, .4);
}

.page-faq .page-title {
  margin: 0 0 20px;
  font-size: var(--text-2xl);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: .01em;
}

.page-faq .faq-title-accent {
  display: block;
  color: var(--accent-blue);
}

.page-faq .page-intro {
  max-width: 680px;
  margin: 0 0 24px;
  font-size: var(--text-md);
  line-height: 1.7;
  color: var(--text-mid);
}

.page-faq .page-head-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: var(--border-md);
  background: var(--bg-card);
  color: var(--text-mid);
  font-family: var(--font-data);
  font-size: var(--text-xs);
  letter-spacing: .06em;
}

.page-faq .tag-blue {
  border-color: rgba(0, 180, 255, .3);
  color: #7ad8ff;
}

.page-faq .tag-orange {
  border-color: rgba(255, 90, 0, .3);
  color: #ff9a66;
}

.page-faq .tag-green {
  border-color: rgba(0, 255, 163, .3);
  color: #71ffc6;
}

.page-faq .faq-hero-figure {
  position: relative;
  margin: 0;
  padding: 12px;
  background: var(--bg-card);
  border: var(--faq-bp);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-hero-figure::after {
  content: "FAQ";
  position: absolute;
  right: 18px;
  top: -15px;
  padding: 5px 12px;
  background: var(--accent-orange);
  color: #fff;
  font-family: var(--font-data);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .22em;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, .35);
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
}

.page-faq .faq-figure-caption {
  padding: 10px 4px 0;
  color: var(--text-low);
  font-family: var(--font-data);
  font-size: var(--text-xs);
  letter-spacing: .08em;
  text-align: right;
}

.page-faq .faq-index-section,
.page-faq .faq-section {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 52px var(--shell-gap) 0;
}

.page-faq .chapter-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 28px;
  border-bottom: var(--faq-bp);
}

.page-faq .chapter-index {
  font-family: var(--font-data);
  font-size: clamp(1.2rem, 2.6vw, 1.8rem);
  font-weight: 700;
  color: var(--accent-orange);
  line-height: 1;
}

.page-faq .chapter-title {
  margin: 0;
  font-size: var(--text-xl);
  font-weight: 900;
  line-height: 1.1;
}

.page-faq .chapter-meta {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: var(--text-xs);
  color: var(--text-low);
  letter-spacing: .1em;
  writing-mode: horizontal-tb;
}

.page-faq .faq-index-head .chapter-meta {
  margin-left: auto;
}

.page-faq .faq-index-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.page-faq .faq-index-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 22px 20px 18px;
  background: var(--bg-card);
  border: var(--faq-bp-sm);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, .35);
  text-decoration: none;
  color: var(--text-high);
  transition: border-color .2s var(--ease-out), transform .2s var(--ease-out), box-shadow .2s var(--ease-out);
}

.page-faq .faq-index-card:hover {
  border-color: var(--accent-blue);
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(0, 180, 255, .1);
}

.page-faq .faq-index-num {
  font-family: var(--font-data);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-orange);
}

.page-faq .faq-index-name {
  margin-top: 10px;
  font-size: 1.05rem;
  font-weight: 700;
}

.page-faq .faq-index-count {
  font-family: var(--font-data);
  font-size: var(--text-xs);
  color: var(--text-low);
}

.page-faq .faq-index-arrow {
  position: absolute;
  right: 16px;
  bottom: 12px;
  color: var(--accent-blue);
  font-size: 1.5rem;
  line-height: 1;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity .2s var(--ease-out), transform .2s var(--ease-out);
}

.page-faq .faq-index-card:hover .faq-index-arrow {
  opacity: 1;
  transform: translateX(0);
}

.page-faq .faq-section-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.page-faq .faq-side-card {
  position: relative;
  padding: 24px;
  background: var(--bg-card);
  border: var(--faq-bp-sm);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, .3);
  margin-bottom: 8px;
}

.page-faq .faq-side-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 6px;
  height: 100%;
  background: var(--accent-blue);
}

.page-faq .faq-device-stats::before,
.page-faq .faq-data-stats::before {
  background: var(--accent-orange);
}

.page-faq .faq-contact-card::before {
  background: var(--warning);
}

.page-faq .faq-side-card-title {
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-data);
  font-size: var(--text-xs);
  letter-spacing: .16em;
  color: var(--text-mid);
}

.page-faq .faq-side-lead {
  margin: 0 0 16px;
  color: var(--text-mid);
  line-height: 1.7;
  font-size: var(--text-sm);
}

.page-faq .faq-access-figure {
  margin: 0;
}

.page-faq .faq-access-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
}

.page-faq .faq-access-figure figcaption {
  padding-top: 8px;
  font-family: var(--font-data);
  font-size: var(--text-xs);
  color: var(--text-low);
  text-align: right;
}

.page-faq .faq-side-stat {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
}

.page-faq .faq-side-stat:last-child {
  border-bottom: none;
}

.page-faq .faq-side-num {
  font-family: var(--font-data);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text-high);
  letter-spacing: -.02em;
}

.page-faq .faq-side-label {
  font-size: var(--text-xs);
  color: var(--text-low);
  text-align: right;
  line-height: 1.4;
}

.page-faq .faq-contact-row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  font-size: var(--text-sm);
  line-height: 1.5;
  word-break: break-word;
}

.page-faq .faq-contact-row:last-of-type {
  border-bottom: none;
}

.page-faq .faq-contact-label {
  font-family: var(--font-data);
  font-size: var(--text-xs);
  color: var(--text-low);
  padding-top: 3px;
}

.page-faq .faq-contact-note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--text-low);
  font-size: var(--text-xs);
  line-height: 1.7;
}

.page-faq .faq-inline-link {
  color: var(--accent-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 180, 255, .35);
  transition: border-color .2s var(--ease-out), color .2s var(--ease-out);
}

.page-faq .faq-inline-link:hover {
  border-bottom-color: var(--accent-blue);
  color: #8adfff;
}

.page-faq .faq-accordion {
  min-width: 0;
  background: var(--bg-secondary);
  border: var(--faq-bp-sm);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, .32);
}

.page-faq .accordion-item {
  border-bottom: 1px solid var(--border);
  transition: background .2s var(--ease-out);
}

.page-faq .accordion-item:last-child {
  border-bottom: none;
}

.page-faq .accordion-item[data-open="true"] {
  background: var(--bg-card);
  box-shadow: inset 3px 0 0 var(--accent-blue);
}

.page-faq .accordion-trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 16px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--text-high);
  font-family: var(--font-ui);
  transition: background .2s var(--ease-out);
}

.page-faq .accordion-trigger:hover {
  background: rgba(255, 255, 255, .03);
}

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

.page-faq .accordion-index {
  flex-shrink: 0;
  padding: 4px 8px;
  background: rgba(255, 90, 0, .08);
  border: 1px solid rgba(255, 90, 0, .32);
  color: var(--accent-orange);
  font-family: var(--font-data);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .06em;
  white-space: nowrap;
}

.page-faq .accordion-label {
  flex: 1;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .accordion-icon {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--text-mid);
  border-radius: 50%;
  display: inline-block;
  transition: border-color .2s var(--ease-out);
}

.page-faq .accordion-icon::before,
.page-faq .accordion-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--text-mid);
  transition: background .2s var(--ease-out), transform .2s var(--ease-out), opacity .2s var(--ease-out);
}

.page-faq .accordion-icon::before {
  width: 8px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .accordion-icon::after {
  width: 2px;
  height: 8px;
  transform: translate(-50%, -50%);
}

.page-faq .accordion-item[data-open="true"] .accordion-icon {
  border-color: var(--accent-blue);
}

.page-faq .accordion-item[data-open="true"] .accordion-icon::before,
.page-faq .accordion-item[data-open="true"] .accordion-icon::after {
  background: var(--accent-blue);
}

.page-faq .accordion-item[data-open="true"] .accordion-icon::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .accordion-panel {
  max-height: none;
  border-top: 1px dashed var(--border);
}

.page-faq .accordion-item[data-open="false"] .accordion-panel,
.page-faq .accordion-item:not([data-open]) .accordion-panel {
  max-height: 0;
  overflow: hidden;
  border-top: none;
}

.page-faq .accordion-panel p {
  margin: 0;
  padding: 16px 16px 22px;
  color: var(--text-mid);
  font-size: var(--text-sm);
  line-height: 1.8;
}

.page-faq .faq-trust {
  max-width: var(--shell-max);
  margin: 56px auto 0;
  padding: 0 var(--shell-gap);
}

.page-faq .faq-trust-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 24px;
  background: var(--bg-secondary);
  border: var(--border-md);
  border-left: 4px solid var(--success);
  font-family: var(--font-data);
  font-size: var(--text-sm);
  letter-spacing: .03em;
  color: var(--text-mid);
}

.page-faq .faq-trust-inner p {
  margin: 0;
}

.page-faq .faq-trust-dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  animation: pageFaqPulse 2.2s var(--ease-out) infinite;
}

@keyframes pageFaqPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .3; }
}

@media (min-width: 768px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-section-body {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 32px;
  }

  .page-faq .faq-side-card {
    margin-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 1.05fr .95fr;
    gap: 48px;
    align-items: center;
  }

  .page-faq .page-title {
    font-size: clamp(2.6rem, 5.4vw, 4.6rem);
  }

  .page-faq .faq-hero-figure {
    padding: 16px;
  }

  .page-faq .faq-index-section,
  .page-faq .faq-section {
    padding-top: 64px;
  }

  .page-faq .faq-section-body {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .faq-side-card {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .chapter-meta {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    order: 3;
    margin-left: 0;
    margin-right: 8px;
    letter-spacing: .14em;
  }

  .page-faq .faq-section-head .chapter-meta {
    margin-left: auto;
  }

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

  .page-faq .accordion-label {
    font-size: 1.05rem;
  }
}