.page-faq {
  --faq-rail-w: 258px;
  --faq-hair: rgba(244, 241, 250, 0.10);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-faq h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(25px, 4.2vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  color: var(--paper);
}

.page-faq h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--paper);
}

.page-faq .faq-kicker {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-faq a:focus-visible,
.page-faq button:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(14px, 2.6vw, 24px) 0 clamp(36px, 6vw, 72px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(58% 52% at 90% 6%, rgba(255, 61, 141, 0.16), transparent 70%),
    radial-gradient(54% 48% at 2% 26%, rgba(53, 230, 255, 0.13), transparent 72%);
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
  margin-top: clamp(18px, 3vw, 32px);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(32px, 7vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: var(--paper);
}

.page-faq .faq-hero h1::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  margin-top: 22px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
}

.page-faq .faq-lead {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 4vw, 40px);
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-hero__meta .num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 26px);
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__meta li:nth-child(2) .num { color: var(--magenta); }
.page-faq .faq-hero__meta li:nth-child(3) .num { color: var(--gold); }

.page-faq .faq-hero__meta .lab {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: linear-gradient(160deg, var(--ink-3), var(--ink-2));
  box-shadow: var(--shadow-float);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- quick start ---------- */
.page-faq .faq-quick {
  padding: clamp(32px, 6vw, 64px) 0;
  border-top: 1px solid var(--faq-hair);
  background: linear-gradient(180deg, rgba(21, 16, 32, 0.88), rgba(7, 7, 11, 0));
}

.page-faq .faq-quick__head {
  max-width: 60ch;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-faq .faq-quick__head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-quick__grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-faq .faq-quick__figure {
  margin: 0;
}

.page-faq .faq-quick__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-faq .faq-quick__figure .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

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

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-step:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-step__num {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid rgba(53, 230, 255, 0.4);
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-step p a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 255, 0.55);
}

.page-faq .faq-step p a:hover { color: var(--cyan); }

/* ---------- index + stream ---------- */
.page-faq .faq-body {
  padding: clamp(34px, 6vw, 72px) 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-body__head {
  margin-bottom: clamp(20px, 3vw, 34px);
  max-width: 56ch;
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-faq .faq-rail__head h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.page-faq .faq-rail__hint {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

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

.page-faq .faq-rail__bar .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--faq-hair);
  background: rgba(21, 16, 32, 0.6);
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-rail__bar .filter-btn:hover {
  color: var(--paper);
  border-color: rgba(53, 230, 255, 0.42);
}

.page-faq .faq-rail__bar .filter-btn[aria-pressed="true"] {
  color: var(--paper);
  background: rgba(53, 230, 255, 0.12);
  border-color: rgba(53, 230, 255, 0.55);
}

.page-faq .fb-num {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-rail__bar .filter-btn[aria-pressed="true"] .fb-num {
  color: var(--cyan);
}

.page-faq .faq-rail__status {
  margin: 12px 0 0;
  min-height: 1.2em;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .faq-rail__foot {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--faq-hair);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-rail__foot a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
}

.page-faq .qa-stream {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-faq .qa-item {
  border-radius: var(--r-md);
  border: 1px solid var(--faq-hair);
  background: linear-gradient(180deg, rgba(38, 25, 52, 0.55), rgba(21, 16, 32, 0.45));
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .qa-item[hidden] { display: none; }

.page-faq .qa-item[open] {
  border-color: rgba(53, 230, 255, 0.38);
  background: linear-gradient(180deg, rgba(38, 25, 52, 0.88), rgba(21, 16, 32, 0.6));
}

.page-faq .qa-item:hover {
  border-color: rgba(244, 241, 250, 0.2);
}

.page-faq .qa-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .qa-item[open] .qa-num { color: var(--cyan); }

.page-faq .qa-q {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  min-width: 0;
}

.page-faq .qa-summary .chip {
  font-size: 11px;
  padding: 3px 9px;
  white-space: nowrap;
}

.page-faq .qa-toggle {
  position: relative;
  width: 22px;
  height: 22px;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  transition: border-color 0.2s var(--ease);
}

.page-faq .qa-toggle::before,
.page-faq .qa-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--muted);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .qa-toggle::before {
  width: 9px;
  height: 1.5px;
}

.page-faq .qa-toggle::after {
  width: 1.5px;
  height: 9px;
}

.page-faq .qa-item[open] .qa-toggle { border-color: rgba(53, 230, 255, 0.6); }

.page-faq .qa-item[open] .qa-toggle::before { background: var(--cyan); }

.page-faq .qa-item[open] .qa-toggle::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa-answer {
  margin: 0 16px 16px;
  padding-top: 13px;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .qa-answer p {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .qa-answer p + p { margin-top: 8px; }

.page-faq .qa-answer a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 255, 0.55);
}

.page-faq .qa-answer a:hover { color: var(--cyan); }

/* ---------- comparison ---------- */
.page-faq .faq-compare {
  padding: clamp(34px, 6vw, 72px) 0;
  border-top: 1px solid var(--faq-hair);
  background: linear-gradient(180deg, rgba(21, 16, 32, 0.92), rgba(7, 7, 11, 0) 75%);
}

.page-faq .faq-compare__head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-compare__head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-compare__head a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 255, 0.55);
}

.page-faq .faq-compare__head a:hover { color: var(--cyan); }

.page-faq .faq-compare__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--r-md);
  border: 1px solid var(--line-strong);
  background: rgba(7, 7, 11, 0.5);
}

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

.page-faq .faq-table thead th {
  text-align: left;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  background: rgba(38, 25, 52, 0.9);
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-table thead th:nth-child(3) { color: var(--magenta); }

.page-faq .faq-table tbody th {
  width: 27%;
  text-align: left;
  padding: 14px 16px;
  font-weight: 600;
  font-size: 14px;
  color: var(--paper);
  border-bottom: 1px solid var(--faq-hair);
  vertical-align: top;
}

.page-faq .faq-table tbody td {
  padding: 14px 16px;
  line-height: 1.7;
  color: var(--muted);
  border-bottom: 1px solid var(--faq-hair);
  vertical-align: top;
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td { border-bottom: 0; }

.page-faq .faq-table tbody tr:nth-child(even) { background: rgba(244, 241, 250, 0.025); }

.page-faq .faq-table .mono {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .faq-compare__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- contact ---------- */
.page-faq .faq-contact {
  padding: 0 0 clamp(44px, 7vw, 88px);
}

.page-faq .faq-contact__box {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(24px, 4vw, 48px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(255, 61, 141, 0.14), transparent 62%),
    radial-gradient(70% 100% at 0% 100%, rgba(53, 230, 255, 0.10), transparent 62%),
    var(--ink-2);
}

.page-faq .faq-contact__lead p:not(.faq-kicker) {
  margin: 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-contact__list {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-contact__list > div {
  display: grid;
  gap: 4px;
}

.page-faq .faq-contact__list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-contact__list dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact__list a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 255, 0.5);
}

.page-faq .faq-contact__list a:hover { color: var(--cyan); }

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

.page-faq .faq-contact__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- responsive ---------- */
@media (min-width: 720px) {
  .page-faq .qa-summary { padding: 17px 20px; }
  .page-faq .qa-answer { margin: 0 20px 18px; padding-top: 14px; }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-faq .faq-quick__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-faq .faq-contact__box {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-faq .faq-contact__actions,
  .page-faq .faq-contact__note {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-faq .faq-rail__bar {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
  }

  .page-faq .faq-rail__bar .filter-btn {
    width: 100%;
    justify-content: space-between;
    padding: 11px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item,
  .page-faq .qa-toggle,
  .page-faq .qa-toggle::before,
  .page-faq .qa-toggle::after,
  .page-faq .faq-rail__bar .filter-btn {
    transition: none;
  }
}
<<<END>>>