.page-faq {
  --faq-line: rgba(138, 154, 168, .22);
  --faq-gap: clamp(1.5rem, 4vw, 3rem);
  --faq-pad: clamp(3rem, 8vw, 6rem);
  background: var(--bf-deep-900);
  color: var(--bf-cream-100);
  padding-bottom: var(--faq-pad);
}

/* ---------- hero ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(2.5rem, 6vw, 4.25rem);
  background:
    radial-gradient(120% 85% at 88% -10%, rgba(43, 227, 198, .17), transparent 62%),
    radial-gradient(95% 70% at 2% 108%, rgba(255, 107, 74, .13), transparent 60%),
    linear-gradient(162deg, var(--bf-deep-700) 0%, var(--bf-deep-900) 60%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -14% -46% 40%;
  height: 76%;
  background: linear-gradient(118deg, rgba(43, 227, 198, .10), transparent 68%);
  transform: skewY(-7deg);
  pointer-events: none;
}

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

.page-faq .faq-hero .bf-eyebrow {
  color: var(--bf-cyan-500);
  letter-spacing: .18em;
  text-transform: uppercase;
  font-size: .78rem;
  margin: clamp(1.25rem, 3vw, 2rem) 0 .75rem;
}

.page-faq .faq-hero h1 {
  font-family: var(--bf-font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 5.2vw, 3.05rem);
  line-height: 1.1;
  letter-spacing: -.022em;
  margin: 0 0 1rem;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 54ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--bf-ice-50);
}

.page-faq .faq-quick {
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .75rem;
}

.page-faq .faq-quick li {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding: .7rem 1rem;
  border: 1px solid var(--faq-line);
  border-left: 2px solid var(--bf-cyan-500);
  border-radius: 0 10px 10px 0;
  background: rgba(7, 26, 43, .55);
}

.page-faq .faq-quick__num {
  font-size: 1.45rem;
  line-height: 1;
  color: var(--bf-cyan-500);
}

.page-faq .faq-quick__label {
  font-size: .95rem;
  color: var(--bf-cream-100);
}

/* ---------- shell + rail ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: clamp(2rem, 5vw, 3.25rem);
}

.page-faq .faq-rail__label {
  margin: 0 0 .6rem;
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--bf-rock-400);
}

.page-faq .faq-rail__nav {
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  padding-bottom: .5rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(43, 227, 198, .4) transparent;
}

.page-faq .faq-rail__nav a {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  flex: 0 0 auto;
  padding: .5rem .85rem;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  text-decoration: none;
  white-space: nowrap;
  font-size: .9rem;
  color: var(--bf-rock-400);
  transition: color var(--bf-ease), border-color var(--bf-ease), background var(--bf-ease);
}

.page-faq .faq-rail__nav a .bf-mono {
  font-size: .72rem;
  color: var(--bf-cyan-500);
}

.page-faq .faq-rail__nav a:hover {
  color: var(--bf-cream-100);
  border-color: var(--bf-line-cyan);
}

.page-faq .faq-rail__nav a[aria-current="true"] {
  color: var(--bf-deep-900);
  background: var(--bf-cyan-500);
  border-color: var(--bf-cyan-500);
}

.page-faq .faq-rail__nav a[aria-current="true"] .bf-mono {
  color: var(--bf-deep-900);
}

/* ---------- sections ---------- */
.page-faq .faq-sec {
  padding: clamp(1.75rem, 4vw, 2.6rem) 0;
  border-top: 1px solid var(--faq-line);
  scroll-margin-top: 6.5rem;
}

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

.page-faq .faq-sec__head {
  display: block;
  margin-bottom: 1.4rem;
}

.page-faq .faq-sec__num {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--bf-cyan-500);
  margin-bottom: .55rem;
}

.page-faq .faq-sec__num::after {
  content: "";
  width: 2.75rem;
  height: 1px;
  background: linear-gradient(90deg, var(--bf-cyan-500), transparent);
}

.page-faq .faq-sec h2 {
  font-family: var(--bf-font-display);
  font-weight: 700;
  font-size: clamp(1.25rem, 2.6vw, 1.8rem);
  line-height: 1.28;
  letter-spacing: -.012em;
  margin: 0 0 .55rem;
}

.page-faq .faq-sec__note {
  margin: 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--bf-rock-400);
}

/* ---------- steps ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-faq .faq-step {
  position: relative;
  padding: 1.2rem 1.1rem 1.35rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--bf-radius);
  background: linear-gradient(180deg, rgba(14, 47, 74, .72), rgba(7, 26, 43, .5));
  transition: border-color var(--bf-ease), transform var(--bf-ease);
}

.page-faq .faq-step:hover {
  border-color: var(--bf-line-cyan);
  transform: translateY(-2px);
}

.page-faq .faq-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--bf-cyan-500);
  color: var(--bf-deep-900);
  font-size: .92rem;
  margin-bottom: .85rem;
}

.page-faq .faq-step h3 {
  margin: 0 0 .5rem;
  font-size: 1.08rem;
  line-height: 1.4;
  color: var(--bf-cream-100);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: .98rem;
  line-height: 1.72;
  color: var(--bf-ice-50);
}

.page-faq .faq-step a {
  color: var(--bf-cyan-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 198, .4);
  transition: border-color var(--bf-ease), color var(--bf-ease);
}

.page-faq .faq-step a:hover {
  color: var(--bf-cream-100);
  border-bottom-color: var(--bf-cream-100);
}

/* ---------- split (login) ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

.page-faq .faq-flow {
  list-style: none;
  counter-reset: faqflow;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .9rem;
}

.page-faq .faq-flow li {
  position: relative;
  counter-increment: faqflow;
  padding-left: 2.4rem;
  font-size: .98rem;
  line-height: 1.75;
  color: var(--bf-ice-50);
}

.page-faq .faq-flow li::before {
  content: counter(faqflow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .12em;
  font-family: var(--bf-font-mono);
  font-size: .82rem;
  color: var(--bf-cyan-500);
  border: 1px solid rgba(43, 227, 198, .42);
  border-radius: 6px;
  padding: .1rem .32rem;
  line-height: 1.2;
}

.page-faq .faq-flow strong {
  color: var(--bf-cream-100);
  font-weight: 600;
}

.page-faq .faq-check {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-faq .faq-check li {
  position: relative;
  padding-left: 1.7rem;
  font-size: .98rem;
  line-height: 1.7;
  color: var(--bf-ice-50);
}

.page-faq .faq-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .48em;
  width: .68rem;
  height: .68rem;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--bf-cyan-500), rgba(43, 227, 198, .22));
  box-shadow: 0 0 0 1px rgba(43, 227, 198, .34);
}

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

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--bf-radius);
  border: 1px solid var(--faq-line);
  background: var(--bf-deep-700);
  object-fit: cover;
}

.page-faq .faq-shot figcaption {
  margin-top: .6rem;
  font-size: .9rem;
  line-height: 1.6;
  color: var(--bf-rock-400);
}

/* ---------- timeline ---------- */
.page-faq .faq-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.15rem;
  position: relative;
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-timeline::before {
  content: "";
  position: absolute;
  left: .3rem;
  top: .5rem;
  bottom: .5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--bf-cyan-500), rgba(43, 227, 198, .07));
}

.page-faq .faq-timeline__item {
  position: relative;
}

.page-faq .faq-timeline__item::before {
  content: "";
  position: absolute;
  left: -1.1rem;
  top: .45rem;
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: var(--bf-deep-900);
  border: 1px solid var(--bf-rock-400);
}

.page-faq .faq-timeline__item.is-current::before {
  background: var(--bf-cyan-500);
  border-color: var(--bf-cyan-500);
  box-shadow: 0 0 0 4px rgba(43, 227, 198, .14);
}

.page-faq .faq-timeline__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  margin-bottom: .5rem;
}

.page-faq .faq-timeline__ver {
  font-size: .88rem;
  letter-spacing: .04em;
  color: var(--bf-cream-100);
  padding: .16rem .5rem;
  border: 1px solid var(--faq-line);
  border-radius: 6px;
  background: rgba(3, 11, 18, .55);
}

.page-faq .faq-timeline__item.is-current .faq-timeline__ver {
  color: var(--bf-coral-500);
  border-color: rgba(255, 107, 74, .45);
}

.page-faq .faq-timeline__item h3 {
  margin: 0 0 .4rem;
  font-size: 1.06rem;
  line-height: 1.4;
  color: var(--bf-cream-100);
}

.page-faq .faq-timeline__item p {
  margin: 0;
  font-size: .98rem;
  line-height: 1.75;
  color: var(--bf-ice-50);
  max-width: 62ch;
}

.page-faq .faq-timeline__foot {
  margin: 1.5rem 0 0;
  padding: .85rem 1rem;
  border-left: 2px solid var(--bf-moss-500);
  background: rgba(95, 140, 106, .12);
  border-radius: 0 10px 10px 0;
  font-size: .95rem;
  line-height: 1.7;
  color: var(--bf-ice-50);
}

/* ---------- fee path ---------- */
.page-faq .faq-path {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
}

.page-faq .faq-path__item {
  position: relative;
  padding: 1.1rem 1.1rem 1.25rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--bf-radius);
  background: rgba(14, 47, 74, .48);
  transition: border-color var(--bf-ease);
}

.page-faq .faq-path__item:hover {
  border-color: rgba(255, 107, 74, .42);
}

.page-faq .faq-path__item::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -1rem;
  width: .52rem;
  height: .52rem;
  transform: translateX(-50%) rotate(45deg);
  border-right: 2px solid var(--bf-coral-500);
  border-bottom: 2px solid var(--bf-coral-500);
}

.page-faq .faq-path__item:last-child::after {
  display: none;
}

.page-faq .faq-path__k {
  display: inline-block;
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--bf-coral-500);
  margin-bottom: .5rem;
}

.page-faq .faq-path__item h3 {
  margin: 0 0 .45rem;
  font-size: 1.04rem;
  line-height: 1.4;
  color: var(--bf-cream-100);
}

.page-faq .faq-path__item p {
  margin: 0;
  font-size: .97rem;
  line-height: 1.72;
  color: var(--bf-ice-50);
}

.page-faq .faq-sec__tail {
  margin: 1.5rem 0 0;
  font-size: .97rem;
  line-height: 1.75;
  color: var(--bf-rock-400);
}

.page-faq .faq-sec__tail a {
  color: var(--bf-cyan-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 198, .38);
  transition: border-color var(--bf-ease), color var(--bf-ease);
}

.page-faq .faq-sec__tail a:hover {
  color: var(--bf-cream-100);
  border-bottom-color: var(--bf-cream-100);
}

/* ---------- details Q&A ---------- */
.page-faq .faq-qa__item {
  border: 1px solid var(--faq-line);
  border-radius: 12px;
  background: rgba(14, 47, 74, .4);
  margin-bottom: .7rem;
  transition: border-color var(--bf-ease), background var(--bf-ease);
}

.page-faq .faq-qa__item[open] {
  border-color: var(--bf-line-cyan);
  background: rgba(14, 47, 74, .7);
}

.page-faq .faq-qa__item summary {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .95rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  line-height: 1.55;
  font-weight: 600;
  color: var(--bf-cream-100);
}

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

.page-faq .faq-qa__item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--bf-font-mono);
  font-size: 1.1rem;
  line-height: 1.2;
  color: var(--bf-cyan-500);
}

.page-faq .faq-qa__item[open] summary::after {
  content: "−";
}

.page-faq .faq-qa__item summary:hover {
  color: var(--bf-cyan-500);
}

.page-faq .faq-qa__body {
  margin: 0;
  padding: 0 1.1rem 1.1rem;
  font-size: .97rem;
  line-height: 1.78;
  color: var(--bf-ice-50);
}

.page-faq .faq-qa__body a {
  color: var(--bf-cyan-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 198, .38);
  transition: border-color var(--bf-ease), color var(--bf-ease);
}

.page-faq .faq-qa__body a:hover {
  color: var(--bf-cream-100);
  border-bottom-color: var(--bf-cream-100);
}

/* ---------- contact ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-faq .faq-contact .faq-check {
  margin-top: 0;
}

.page-faq .faq-contact__box {
  padding: 1.2rem 1.15rem 1.35rem;
  border: 1px solid rgba(255, 107, 74, .34);
  border-radius: var(--bf-radius);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 107, 74, .14), transparent 65%),
    rgba(3, 11, 18, .55);
}

.page-faq .faq-contact__line {
  margin: 0 0 .5rem;
  font-size: .98rem;
  letter-spacing: .01em;
  color: var(--bf-cream-100);
  word-break: break-word;
}

.page-faq .faq-contact__line:last-of-type {
  margin-bottom: .8rem;
}

.page-faq .faq-contact__note {
  margin: 0 0 1.1rem;
  font-size: .93rem;
  line-height: 1.7;
  color: var(--bf-rock-400);
}

.page-faq .faq-contact__btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1.75rem;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-shell {
    grid-template-columns: 238px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.4rem);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 6rem;
  }

  .page-faq .faq-rail__nav {
    flex-direction: column;
    gap: 0;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__nav a {
    display: flex;
    width: 100%;
    border: 0;
    border-left: 1px solid var(--faq-line);
    border-radius: 0;
    padding: .55rem .8rem;
    font-size: .93rem;
    background: transparent;
  }

  .page-faq .faq-rail__nav a:hover {
    color: var(--bf-cream-100);
    border-left-color: rgba(43, 227, 198, .5);
    background: rgba(43, 227, 198, .05);
  }

  .page-faq .faq-rail__nav a[aria-current="true"] {
    color: var(--bf-cyan-500);
    background: rgba(43, 227, 198, .08);
    border-left-color: var(--bf-cyan-500);
  }

  .page-faq .faq-rail__nav a[aria-current="true"] .bf-mono {
    color: var(--bf-cyan-500);
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 2rem;
  }

  .page-faq .faq-path {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.6rem;
  }

  .page-faq .faq-path__item::after {
    left: auto;
    right: -1.08rem;
    bottom: auto;
    top: 50%;
    transform: translateY(-50%) rotate(-45deg);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero h1 {
    max-width: 22ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-path__item,
  .page-faq .faq-qa__item,
  .page-faq .faq-rail__nav a {
    transition: none;
  }

  .page-faq .faq-step:hover {
    transform: none;
  }
}
<<<END>>>