.page-faq {
  --faq-card: #ffffff;
  --faq-line: rgba(0, 255, 135, 0.22);
  --faq-deep-text: #3E4C5E;
}

@keyframes page-faq-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 255, 135, 0.55); }
  50% { box-shadow: 0 0 0 6px rgba(0, 255, 135, 0); }
}

@keyframes page-faq-hotpulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes page-faq-fade {
  from { opacity: 0.5; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq__hero {
  position: relative;
  background:
    linear-gradient(135deg, transparent 62%, rgba(0, 255, 135, 0.06) 63%, rgba(0, 255, 135, 0.06) 66%, transparent 67%),
    var(--c-bg-light);
  border-bottom: 1px solid rgba(11, 29, 58, 0.1);
  overflow: hidden;
}

.page-faq__hero::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -70px;
  width: 200px;
  height: 200px;
  background: rgba(157, 78, 221, 0.08);
  transform: rotate(25deg);
  pointer-events: none;
}

.page-faq__hero-inner {
  padding: 36px 0 56px;
}

.page-faq__statusline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 6px 14px;
  border: 1px solid var(--faq-line);
  background: rgba(0, 255, 135, 0.07);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-primary);
}

.page-faq__statusdot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
  animation: page-faq-pulse 1.8s ease-in-out infinite;
}

.page-faq__lead {
  margin-top: 14px;
  max-width: 760px;
}

.page-faq__section-head {
  margin-bottom: 26px;
}

.page-faq__section-head h2 {
  margin: 8px 0 0;
  font-size: clamp(1.7rem, 4vw, 2.1rem);
  line-height: 1.15;
}

.page-faq__section-head .lead {
  margin-top: 10px;
  max-width: 760px;
}

.page-faq .section-dark .section-label {
  color: var(--c-accent);
}

.page-faq .section-dark .page-faq__section-head h2 {
  color: var(--c-text-on-dark);
}

.page-faq .section-light .section-label {
  color: var(--c-primary);
}

.page-faq .section-light .page-faq__section-head h2 {
  color: var(--c-text-on-light);
}

.page-faq .faq-console {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--faq-line);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
}

.page-faq .faq-console::before {
  content: "";
  display: block;
  height: 4px;
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  background: var(--c-accent);
  z-index: 1;
}

.page-faq .faq-console::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 30px;
  height: 30px;
  border-top: 3px solid var(--c-accent);
  border-right: 3px solid var(--c-accent);
  pointer-events: none;
  z-index: 2;
}

.page-faq .faq-console__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-console__cats {
  display: flex;
  gap: 8px;
  padding: 16px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-console__list {
  padding: 16px;
  min-height: 320px;
}

.page-faq .faq-cat {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  white-space: nowrap;
  font-size: 14px;
  line-height: 1.2;
  color: var(--c-text-secondary);
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-cat__index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-secondary);
}

.page-faq .faq-cat__name {
  font-weight: 700;
}

.page-faq .faq-cat__count {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  padding: 3px 8px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  color: var(--c-text-secondary);
}

.page-faq #faq-cat-all:checked ~ .faq-console__cats label[for="faq-cat-all"],
.page-faq #faq-cat-cards:checked ~ .faq-console__cats label[for="faq-cat-cards"],
.page-faq #faq-cat-entry:checked ~ .faq-console__cats label[for="faq-cat-entry"],
.page-faq #faq-cat-doc:checked ~ .faq-console__cats label[for="faq-cat-doc"],
.page-faq #faq-cat-mobile:checked ~ .faq-console__cats label[for="faq-cat-mobile"],
.page-faq #faq-cat-account:checked ~ .faq-console__cats label[for="faq-cat-account"] {
  color: var(--c-accent);
  border-color: var(--faq-line);
  background: rgba(0, 255, 135, 0.08);
}

.page-faq #faq-cat-all:checked ~ .faq-console__cats label[for="faq-cat-all"] .faq-cat__index,
.page-faq #faq-cat-cards:checked ~ .faq-console__cats label[for="faq-cat-cards"] .faq-cat__index,
.page-faq #faq-cat-entry:checked ~ .faq-console__cats label[for="faq-cat-entry"] .faq-cat__index,
.page-faq #faq-cat-doc:checked ~ .faq-console__cats label[for="faq-cat-doc"] .faq-cat__index,
.page-faq #faq-cat-mobile:checked ~ .faq-console__cats label[for="faq-cat-mobile"] .faq-cat__index,
.page-faq #faq-cat-account:checked ~ .faq-console__cats label[for="faq-cat-account"] .faq-cat__index {
  color: var(--c-accent);
}

.page-faq .faq-console__input:focus-visible ~ .faq-console__cats .faq-cat {
  box-shadow: 0 0 0 2px var(--c-accent);
}

.page-faq #faq-cat-cards:checked ~ .faq-console__list .qa-item:not([data-cat="cards"]),
.page-faq #faq-cat-entry:checked ~ .faq-console__list .qa-item:not([data-cat="entry"]),
.page-faq #faq-cat-doc:checked ~ .faq-console__list .qa-item:not([data-cat="doc"]),
.page-faq #faq-cat-mobile:checked ~ .faq-console__list .qa-item:not([data-cat="mobile"]),
.page-faq #faq-cat-account:checked ~ .faq-console__list .qa-item:not([data-cat="account"]) {
  display: none;
}

.page-faq .qa-item {
  background: var(--c-bg-light);
  border: 1px solid rgba(11, 29, 58, 0.08);
  border-left: 4px solid var(--c-accent);
  margin-bottom: 12px;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.page-faq .qa-item:hover {
  box-shadow: 0 6px 18px rgba(11, 29, 58, 0.14);
}

.page-faq .qa-item__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px;
  list-style: none;
  cursor: pointer;
}

.page-faq .qa-item__head::-webkit-details-marker {
  display: none;
}

.page-faq .qa-item__code {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-accent);
  background: var(--c-primary);
  padding: 4px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

.page-faq .qa-item__title {
  flex: 1;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  color: var(--c-text-on-light);
}

.page-faq .qa-item__status {
  width: 9px;
  height: 9px;
  flex: 0 0 9px;
  border-radius: 50%;
}

.page-faq .qa-item__status--ok {
  background: var(--c-accent);
}

.page-faq .qa-item__status--hot {
  background: var(--c-orange);
  animation: page-faq-hotpulse 1.4s ease-in-out infinite;
}

.page-faq .qa-item__head::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-purple);
  transition: transform 0.3s ease;
}

.page-faq .qa-item[open] .qa-item__head::after {
  transform: rotate(45deg);
}

.page-faq .qa-item__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}

.page-faq .qa-item[open] .qa-item__body {
  grid-template-rows: 1fr;
}

.page-faq .qa-item__body-inner {
  overflow: hidden;
  min-height: 0;
}

.page-faq .qa-item[open] .qa-item__body-inner {
  animation: page-faq-fade 0.3s ease;
}

.page-faq .qa-item__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px 0;
}

.page-faq .qa-item__chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--c-purple);
  background: rgba(157, 78, 221, 0.12);
  padding: 3px 10px;
  border-radius: 999px;
}

.page-faq .qa-item__note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-secondary);
}

.page-faq .qa-item__body p {
  margin: 0;
  padding: 12px 16px 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-deep-text);
  border-top: 1px dashed rgba(11, 29, 58, 0.08);
}

.page-faq .guide-grid {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-faq .guide-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .guide-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--faq-card);
  border: 1px solid rgba(11, 29, 58, 0.08);
  padding: 20px;
}

.page-faq .guide-step__num {
  flex: 0 0 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-accent);
  background: var(--c-primary);
}

.page-faq .guide-step h3 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--c-primary);
}

.page-faq .guide-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-deep-text);
}

.page-faq .guide-tip {
  display: flex;
  gap: 10px;
  padding: 14px 18px;
  border: 1px dashed var(--c-purple);
  background: rgba(157, 78, 221, 0.06);
}

.page-faq .guide-tip__tag {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-purple);
  padding-top: 1px;
}

.page-faq .guide-tip p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--faq-deep-text);
}

.page-faq .guide-figure {
  margin: 0;
  background: var(--c-primary);
  padding: 14px 14px 0;
  border-bottom: 4px solid var(--c-accent);
}

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

.page-faq .guide-figure figcaption {
  padding: 12px 6px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-on-dark);
}

.page-faq .docs-grid {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-faq .docs-figure {
  position: relative;
  margin: 0;
  background:
    linear-gradient(135deg, rgba(0, 255, 135, 0.1), transparent 65%),
    var(--c-primary);
  padding: 16px;
  border: 1px solid var(--faq-line);
  overflow: hidden;
}

.page-faq .docs-figure::before {
  content: "";
  display: block;
  height: 6px;
  width: 42%;
  background: var(--c-accent);
  margin-bottom: 14px;
}

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

.page-faq .docs-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-on-dark);
}

.page-faq .docs-content__lead {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-text-on-dark);
}

.page-faq .docs-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.page-faq .docs-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--c-text-on-dark);
  font-size: 15px;
}

.page-faq .docs-list__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-accent);
}

.page-faq .docs-highlight {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 0 0 22px;
  padding: 16px;
  background: rgba(0, 255, 135, 0.08);
  border-left: 4px solid var(--c-accent);
}

.page-faq .docs-highlight p {
  margin: 0;
  color: var(--c-text-on-dark);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .docs-highlight strong {
  color: var(--c-accent);
}

.page-faq .compat-compare {
  display: grid;
  gap: 18px;
  margin-bottom: 22px;
}

.page-faq .compat-compare__col {
  background: var(--faq-card);
  border: 1px solid rgba(11, 29, 58, 0.08);
  padding: 20px;
}

.page-faq .compat-compare__col--before {
  border-left: 4px solid var(--c-orange);
}

.page-faq .compat-compare__col--after {
  border-left: 4px solid var(--c-accent);
}

.page-faq .compat-compare__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-text-on-light);
  background: rgba(11, 29, 58, 0.08);
  padding: 4px 10px;
  margin-bottom: 12px;
  border-radius: 999px;
}

.page-faq .compat-compare__col--before .compat-compare__tag {
  background: rgba(255, 106, 0, 0.12);
  color: var(--c-orange);
}

.page-faq .compat-compare__col--after .compat-compare__tag {
  background: rgba(0, 255, 135, 0.16);
  color: var(--c-primary);
}

.page-faq .compat-compare ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .compat-compare li {
  position: relative;
  padding: 5px 0 5px 18px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--faq-deep-text);
}

.page-faq .compat-compare li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 2px;
  background: var(--c-text-secondary);
}

.page-faq .compat-compare__col--after li::before {
  background: var(--c-accent);
}

.page-faq .compat-compare__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  line-height: 1;
  color: var(--c-primary);
  padding: 4px 0;
}

.page-faq .compat-device {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--c-primary);
  padding: 20px;
  border-left: 4px solid var(--c-purple);
}

.page-faq .compat-device__label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-accent);
}

.page-faq .compat-device__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .compat-device__chip {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-on-dark);
  background: rgba(255, 255, 255, 0.04);
}

.page-faq .cta-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 32px;
  border: 1px solid var(--faq-line);
  background:
    linear-gradient(135deg, rgba(0, 255, 135, 0.07) 0%, transparent 40%),
    var(--c-primary);
}

.page-faq .cta-panel h2 {
  margin: 6px 0 12px;
  font-size: 28px;
  color: var(--c-text-on-dark);
}

.page-faq .cta-panel__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-text-secondary);
}

.page-faq .cta-panel__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .cta-panel__mail {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-accent);
}

@media (min-width: 900px) {
  .page-faq__hero-inner {
    padding: 52px 0 72px;
  }

  .page-faq .faq-console {
    flex-direction: row;
    align-items: stretch;
  }

  .page-faq .faq-console__cats {
    flex-direction: column;
    align-items: stretch;
    width: 240px;
    flex-shrink: 0;
    overflow: visible;
    padding: 24px 16px;
    border-bottom: 0;
    border-right: 1px solid var(--faq-line);
  }

  .page-faq .faq-console__list {
    flex: 1;
    padding: 24px;
  }

  .page-faq .faq-cat {
    border-radius: 0;
    border-width: 0;
    border-left: 3px solid transparent;
    padding: 11px 14px;
  }

  .page-faq #faq-cat-all:checked ~ .faq-console__cats label[for="faq-cat-all"],
  .page-faq #faq-cat-cards:checked ~ .faq-console__cats label[for="faq-cat-cards"],
  .page-faq #faq-cat-entry:checked ~ .faq-console__cats label[for="faq-cat-entry"],
  .page-faq #faq-cat-doc:checked ~ .faq-console__cats label[for="faq-cat-doc"],
  .page-faq #faq-cat-mobile:checked ~ .faq-console__cats label[for="faq-cat-mobile"],
  .page-faq #faq-cat-account:checked ~ .faq-console__cats label[for="faq-cat-account"] {
    border-left-color: var(--c-accent);
    background: rgba(0, 255, 135, 0.06);
  }

  .page-faq .guide-grid {
    grid-template-columns: 1fr 300px;
  }

  .page-faq .docs-grid {
    grid-template-columns: minmax(240px, 300px) 1fr;
  }

  .page-faq .docs-content__lead {
    max-width: 680px;
  }

  .page-faq .docs-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .compat-compare {
    grid-template-columns: 1fr auto 1.4fr;
    align-items: stretch;
  }

  .page-faq .compat-compare__arrow {
    font-size: 22px;
    writing-mode: vertical-rl;
  }

  .page-faq .compat-device {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .page-faq .cta-panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq .cta-panel__actions {
    flex-direction: column;
    align-items: flex-end;
  }
}