.page-faq {
  --faq-cut: 18px;
  --faq-hair: rgba(60, 105, 134, 0.3);
  --faq-hair-strong: rgba(60, 105, 134, 0.55);
  background-color: var(--ink-900);
  color: var(--paper);
}

/* ---------- breadcrumb ---------- */
.page-faq .faq-breadcrumb {
  padding-top: clamp(84px, 11vw, 120px);
  padding-bottom: 10px;
}

.page-faq .faq-breadcrumb .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--faq-hair-strong);
}

.page-faq .faq-breadcrumb .breadcrumb-list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-breadcrumb .breadcrumb-list a:hover,
.page-faq .faq-breadcrumb .breadcrumb-list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(10px, 2vw, 24px) var(--gutter) clamp(38px, 5.5vw, 68px);
  border-bottom: 1px solid var(--faq-hair);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(165deg, #000 0%, transparent 74%);
  mask-image: linear-gradient(165deg, #000 0%, transparent 74%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: min(52%, 540px);
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--orange));
}

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

.page-faq .faq-title {
  margin: 14px 0 0;
  max-width: 15ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(42px, 7.4vw, 104px);
  line-height: 0.94;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-title em {
  font-style: normal;
  color: var(--orange);
}

.page-faq .faq-lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-meta span {
  padding: 6px 12px;
  border: 1px solid var(--faq-hair);
  border-left: 2px solid var(--cyan);
  background: rgba(18, 53, 80, 0.45);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- shared block rhythm ---------- */
.page-faq .faq-block {
  position: relative;
  padding: clamp(44px, 6vw, 84px) 0;
}

.page-faq .faq-block + .faq-block {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(24px, 3.4vw, 38px);
}

.page-faq .faq-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 3.4vw, 48px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-head p {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.74;
  color: var(--mist);
}

/* ---------- route cards ---------- */
.page-faq .route-track {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .route-card {
  position: relative;
  z-index: 1;
  padding: 22px 20px 20px;
  background: linear-gradient(165deg, var(--ink-800), var(--ink-900) 84%);
  border: 1px solid var(--faq-hair);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-faq .route-card:hover,
.page-faq .route-card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(34, 224, 208, 0.55);
}

.page-faq .route-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--orange);
  background: rgba(6, 24, 38, 0.9);
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--orange);
}

.page-faq .route-card h3 {
  margin: 14px 0 8px;
  font-family: var(--font-body);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.42;
  color: var(--paper);
}

.page-faq .route-card p {
  margin: 0 0 14px;
  font-size: 13.8px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .route-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 208, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .route-link::after {
  content: "→";
  font-size: 12px;
}

.page-faq .route-link:hover,
.page-faq .route-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--orange);
}

/* ---------- figures ---------- */
.page-faq .faq-figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
  border: 1px solid var(--faq-hair);
  background: var(--ink-800);
  overflow: hidden;
}

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

.page-faq .faq-figure img {
  aspect-ratio: 4 / 3;
}

/* ---------- rule list ---------- */
.page-faq .rule-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-faq .rule-item {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  background: var(--ink-800);
  border: 1px solid var(--faq-hair);
}

.page-faq .rule-item--second {
  border-color: rgba(245, 194, 107, 0.55);
  background: linear-gradient(180deg, rgba(18, 53, 80, 0.96), var(--ink-800));
  box-shadow: 0 26px 70px -52px rgba(245, 194, 107, 0.85);
}

.page-faq .rule-item--second::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--gold), var(--orange));
}

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

.page-faq .rule-index {
  padding: 3px 9px;
  background: var(--mist);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
}

.page-faq .rule-item--second .rule-index {
  background: var(--gold);
  color: var(--ink-900);
}

.page-faq .rule-head h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(18px, 1.9vw, 22px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .rule-text {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--mist);
}

.page-faq .rule-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .rule-steps li {
  padding: 4px 0 4px 14px;
  border-left: 2px solid var(--faq-hair-strong);
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .step-no {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .rule-steps strong,
.page-faq .query-steps strong {
  display: block;
  margin-bottom: 2px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .rule-notes {
  list-style: none;
  margin: 24px 0 0;
  padding: 18px 18px 6px;
  background: rgba(6, 24, 38, 0.62);
  border-top: 1px dashed rgba(245, 194, 107, 0.45);
}

.page-faq .rule-notes li {
  position: relative;
  margin-bottom: 12px;
  padding-left: 22px;
  font-size: 13.8px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .rule-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 1px;
  background: var(--gold);
}

/* ---------- query section ---------- */
.page-faq .query-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 44px);
  align-items: start;
}

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

.page-faq .query-steps li {
  padding: 4px 0 4px 14px;
  border-left: 2px solid rgba(34, 224, 208, 0.4);
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .query-note {
  margin: 22px 0 18px;
  padding: 14px 16px;
  border-left: 2px solid var(--gold);
  background: rgba(245, 194, 107, 0.07);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .query-figure {
  margin: 0;
  border: 1px solid var(--faq-hair);
  background: var(--ink-800);
  overflow: hidden;
}

.page-faq .query-figure img {
  aspect-ratio: 3 / 2;
}

.page-faq .query-demo-wrap {
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(18px, 2.5vw, 28px);
  border: 1px solid var(--faq-hair);
  background: rgba(11, 34, 56, 0.78);
}

.page-faq .demo-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .query-demo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.page-faq .query-panel {
  padding: 16px;
  background: var(--ink-900);
  border: 1px solid var(--faq-hair);
}

.page-faq .query-panel h4 {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .query-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.page-faq .chip {
  padding: 3px 8px;
  border: 1px solid var(--faq-hair);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .chip--on {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink-900);
}

.page-faq .mini-tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1px;
  border-left: 1px dashed rgba(245, 194, 107, 0.45);
}

.page-faq .mini-tl li {
  position: relative;
  padding: 0 0 12px 18px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .mini-tl li:last-child {
  padding-bottom: 0;
}

.page-faq .mini-tl li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(245, 194, 107, 0.15);
}

/* ---------- apk section ---------- */
.page-faq .apk-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .apk-card {
  padding: 20px;
  background: var(--ink-800);
  border: 1px solid var(--faq-hair);
  border-top: 2px solid var(--cyan);
}

.page-faq .apk-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .apk-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .apk-card p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .apk-primary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid rgba(34, 224, 208, 0.35);
  background: linear-gradient(120deg, rgba(34, 224, 208, 0.1), transparent 68%);
}

.page-faq .apk-primary-text {
  max-width: 58ch;
}

.page-faq .apk-stat {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 3.6vw, 46px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-faq .apk-primary-text p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- diff table ---------- */
.page-faq .diff-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--faq-hair);
  background: rgba(11, 34, 56, 0.6);
  -webkit-overflow-scrolling: touch;
}

.page-faq .diff-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .diff-table th {
  padding: 13px 16px;
  text-align: left;
  background: var(--ink-700);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .diff-table td {
  padding: 14px 16px;
  vertical-align: top;
  line-height: 1.65;
  color: var(--mist);
  border-top: 1px solid var(--faq-hair);
}

.page-faq .diff-table tbody tr:nth-child(even) {
  background: rgba(6, 24, 38, 0.55);
}

.page-faq .diff-table tbody tr:hover {
  background: rgba(34, 224, 208, 0.06);
}

.page-faq .diff-mark {
  display: inline-block;
  margin-right: 7px;
  padding: 2px 6px;
  background: var(--orange);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  vertical-align: 1px;
}

.page-faq .diff-tick {
  display: inline-block;
  position: relative;
  width: 13px;
  height: 13px;
  margin-right: 7px;
  border: 1px solid var(--cyan);
  vertical-align: -2px;
}

.page-faq .diff-tick::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 0px;
  width: 4px;
  height: 8px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(42deg);
}

/* ---------- faq accordion ---------- */
.page-faq .faq-filter {
  display: block;
}

.page-faq .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .tag {
  padding: 7px 14px;
  border: 1px solid var(--faq-hair);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
  cursor: pointer;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-faq .tag:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .tag[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
}

.page-faq .tag:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--ink-800);
  border: 1px solid var(--faq-hair);
  transition: border-color 0.22s var(--ease);
}

.page-faq .faq-item:has(.accordion-trigger[aria-expanded="true"]) {
  border-color: rgba(34, 224, 208, 0.45);
}

.page-faq .accordion-trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px 18px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--paper);
}

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

.page-faq .accordion-index {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .accordion-title {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .accordion-sign {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-left: auto;
}

.page-faq .accordion-sign::before,
.page-faq .accordion-sign::after {
  content: "";
  position: absolute;
  background: var(--orange);
  transition: transform 0.25s var(--ease);
}

.page-faq .accordion-sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .accordion-sign::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

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

.page-faq .accordion-panel {
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.76;
  color: var(--mist);
}

.page-faq .accordion-panel p {
  margin: 0 0 10px;
  padding-top: 12px;
  border-top: 1px dashed var(--faq-hair);
}

.page-faq .accordion-panel p:last-child {
  margin-bottom: 0;
}

/* ---------- cta ---------- */
.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 30px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid rgba(255, 107, 44, 0.4);
  background: linear-gradient(120deg, rgba(255, 107, 44, 0.12), transparent 66%);
}

.page-faq .faq-cta-text {
  max-width: 56ch;
}

.page-faq .faq-cta-text h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.2vw, 28px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-cta-text p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-links {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .faq-links li {
  padding-left: 18px;
  position: relative;
  font-size: 13.5px;
  line-height: 1.7;
}

.page-faq .faq-links li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 10px;
  height: 1px;
  background: var(--orange);
}

.page-faq .faq-links a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-links a:hover,
.page-faq .faq-links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: rgba(34, 224, 208, 0.5);
}

/* ---------- responsive ---------- */
@media (min-width: 700px) {
  .page-faq .rule-steps,
  .page-faq .apk-grid,
  .page-faq .query-demo,
  .page-faq .faq-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .route-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .route-track::before {
    content: "";
    position: absolute;
    top: 41px;
    left: 4%;
    right: 4%;
    border-top: 1px dashed var(--faq-hair-strong);
    z-index: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .query-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  }

  .page-faq .query-demo {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .apk-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .route-card,
  .page-faq .route-link,
  .page-faq .tag,
  .page-faq .faq-item,
  .page-faq .accordion-sign::before,
  .page-faq .accordion-sign::after,
  .page-faq .faq-links a,
  .page-faq .faq-breadcrumb .breadcrumb-list a {
    transition: none;
  }

  .page-faq .route-card:hover,
  .page-faq .route-card:focus-within {
    transform: none;
  }
}
<<<END>>>