.page-faq{
  --faq-gap: clamp(16px, 2.6vw, 28px);
  --faq-line: rgba(69, 224, 218, 0.20);
  --faq-line-soft: rgba(125, 147, 166, 0.24);
  --faq-pad: clamp(14px, 2.2vw, 22px);
  position: relative;
  color: var(--fg);
  padding: clamp(20px, 3.4vw, 40px) 0 clamp(40px, 6vw, 80px);
}

.page-faq::before{
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(69, 224, 218, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(69, 224, 218, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

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

/* breadcrumb */
.page-faq .breadcrumb{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
  margin-bottom: clamp(18px, 2.6vw, 30px);
}
.page-faq .breadcrumb 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 .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible{
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-faq .breadcrumb .sep{ color: var(--steel); }
.page-faq .breadcrumb-current{ color: var(--fg-dim); }

/* hero */
.page-faq .faq-hero{
  display: grid;
  gap: var(--faq-gap);
  padding-bottom: clamp(20px, 3vw, 34px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .eyebrow{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  border: 1px solid var(--faq-line);
  padding: 5px 10px;
  margin: 0 0 14px;
  text-transform: uppercase;
}

.page-faq h1{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6vw, 60px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 0 0 16px;
}
.page-faq h1 em{
  font-style: normal;
  color: var(--orange);
}

.page-faq .lede{
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--fg-dim);
}

.page-faq .faq-hero-meta{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line-soft);
}
.page-faq .faq-stat{
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 16px;
  background: var(--mid);
}
.page-faq .faq-stat-num{
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 24px);
  line-height: 1.1;
  color: var(--cyan);
  letter-spacing: 0.02em;
}
.page-faq .faq-stat-label{
  font-size: 12px;
  line-height: 1.5;
  color: var(--fg-dim);
}

/* section frame */
.page-faq .faq-sec{
  padding: clamp(28px, 4.4vw, 52px) 0;
  border-top: 1px solid var(--faq-line-soft);
}
.page-faq .faq-sec:first-of-type{
  border-top: 0;
  padding-top: clamp(24px, 3.4vw, 40px);
}

.page-faq .sec-head{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  margin-bottom: clamp(16px, 2.6vw, 28px);
}
.page-faq .sec-num{
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 30px);
  line-height: 1;
  color: var(--steel);
  letter-spacing: 0.02em;
}
.page-faq .sec-title{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-faq .sec-note{
  grid-column: 2;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fg-dim);
}
.page-faq .sec-note a,
.page-faq .prose a,
.page-faq .check-panel a,
.page-faq .archive-block a,
.page-faq .support-copy a{
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .sec-note a:hover,
.page-faq .prose a:hover,
.page-faq .check-panel a:hover,
.page-faq .archive-block a:hover,
.page-faq .support-copy a:hover,
.page-faq .sec-note a:focus-visible,
.page-faq .prose a:focus-visible{
  color: var(--mist);
  border-bottom-color: var(--cyan);
}

.page-faq .prose{
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--fg-dim);
}

/* overview */
.page-faq .faq-overview{
  display: grid;
  gap: var(--faq-gap);
  margin-bottom: clamp(18px, 2.8vw, 28px);
}

.page-faq .cat-strip{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .cat-chip{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--faq-line-soft);
  background: rgba(11, 39, 64, 0.62);
  color: var(--fg-dim);
  font-size: 13px;
  line-height: 1.2;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-faq .cat-chip b{
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
}
.page-faq .cat-chip:hover,
.page-faq .cat-chip:focus-visible{
  border-color: var(--cyan);
  background: rgba(18, 59, 92, 0.9);
  color: var(--paper);
}

.page-faq .faq-figure{
  margin: 0;
  border: 1px solid var(--faq-line-soft);
  background: var(--ink);
}
.page-faq .faq-figure img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .img-cap{
  display: block;
  padding: 9px 12px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 12px;
  line-height: 1.6;
  color: var(--fg-dim);
  background: rgba(3, 10, 16, 0.6);
}

/* accordion */
.page-faq .faq-list{
  display: grid;
  gap: 10px;
}
.page-faq .faq-item{
  border: 1px solid var(--faq-line-soft);
  background: linear-gradient(180deg, rgba(11, 39, 64, 0.75), rgba(6, 24, 38, 0.88));
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.page-faq .faq-item[open]{
  border-color: var(--faq-line);
  box-shadow: 5px 5px 0 rgba(3, 10, 16, 0.6);
}
.page-faq .faq-item > summary{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
  padding: var(--faq-pad);
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-item > summary::-webkit-details-marker{ display: none; }
.page-faq .faq-item > summary:focus-visible{
  outline: 1px solid var(--cyan);
  outline-offset: -3px;
}
.page-faq .faq-num{
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: 0.08em;
  color: var(--cyan);
}
.page-faq .faq-q{
  font-size: 15px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--paper);
}
.page-faq .faq-mark{
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.4;
  color: var(--slate);
  transition: transform 0.2s var(--ease), color 0.2s var(--ease);
}
.page-faq .faq-item[open] .faq-mark{
  transform: rotate(45deg);
  color: var(--orange);
}
.page-faq .faq-body{
  padding: 0 var(--faq-pad) var(--faq-pad);
}
.page-faq .faq-body p{
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--fg-dim);
}
.page-faq .faq-tag{
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* device comparison */
.page-faq .dev-grid{
  display: grid;
  gap: 12px;
  margin-bottom: clamp(14px, 2.2vw, 20px);
}
.page-faq .dev-card{
  display: grid;
  gap: 10px;
  align-content: start;
  padding: var(--faq-pad);
  border: 1px solid var(--faq-line-soft);
  background: var(--mid);
}
.page-faq .dev-card .tag{
  justify-self: start;
}
.page-faq .dev-card h3{
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}
.page-faq .dev-card p{
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--fg-dim);
}
.page-faq .dev-card ul{
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--fg-dim);
}

.page-faq .check-panel{
  padding: var(--faq-pad);
  border-left: 2px solid var(--cyan);
  background: rgba(18, 59, 92, 0.45);
}
.page-faq .check-panel h3{
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
}
.page-faq .check-list{
  margin: 0 0 12px;
  padding-left: 20px;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--fg-dim);
}
.page-faq .check-panel p{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fg-dim);
}

/* record path */
.page-faq .path-steps{
  list-style: none;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line-soft);
}
.page-faq .path-steps li{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  padding: var(--faq-pad);
  background: var(--deep);
}
.page-faq .path-idx{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
}
.page-faq .path-steps strong{
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
}
.page-faq .path-steps p{
  grid-column: 2;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fg-dim);
}

.page-faq .records-extra{
  display: grid;
  gap: 12px;
}
.page-faq .panel{
  padding: var(--faq-pad);
  border: 1px solid var(--faq-line-soft);
}
.page-faq .panel--warn{
  border-color: rgba(255, 92, 108, 0.42);
}
.page-faq .panel h3{
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--paper);
}
.page-faq .panel ul{
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 7px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fg-dim);
}
.page-faq .panel--warn ul li::marker{
  color: var(--red);
}

/* panel mapping */
.page-faq .map-list{
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-faq .map-row{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 12px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--faq-line-soft);
  background: rgba(11, 39, 64, 0.55);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-faq .map-row:hover{
  border-color: var(--faq-line);
  background: rgba(18, 59, 92, 0.7);
}
.page-faq .map-idx{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
}
.page-faq .map-purpose{
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
}
.page-faq .map-arrow{
  display: none;
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 13px;
}
.page-faq .map-target{
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

/* rules & archive */
.page-faq .rules-grid{
  display: grid;
  gap: var(--faq-gap);
}
.page-faq .rules-sheet{
  padding: var(--faq-pad);
  border-left: 3px solid var(--orange);
}
.page-faq .rules-sheet h3{
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.5;
  color: var(--mid);
}
.page-faq .rules-sheet p{
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: #2c3f4e;
}
.page-faq .rule-steps{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}
.page-faq .rule-steps li{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: #2c3f4e;
}
.page-faq .rule-steps b{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mid);
}

.page-faq .archive-block{
  padding: var(--faq-pad);
  border: 1px solid var(--faq-line-soft);
  background: rgba(11, 39, 64, 0.5);
}
.page-faq .archive-block h3{
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.5;
  color: var(--paper);
}
.page-faq .archive-block p{
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--fg-dim);
}
.page-faq .archive-tracks{
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line-soft);
}
.page-faq .archive-tracks li{
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: var(--deep);
}
.page-faq .track-name{
  font-size: 14px;
  color: var(--mist);
  letter-spacing: 0.02em;
}
.page-faq .track-desc{
  font-size: 13px;
  line-height: 1.7;
  color: var(--fg-dim);
}
.page-faq .archive-block a{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  padding-bottom: 2px;
}

/* support */
.page-faq .support-grid2{
  display: grid;
  gap: var(--faq-gap);
}
.page-faq .support-figure{
  margin: 0;
  border: 1px solid rgba(255, 200, 87, 0.35);
  background: var(--ink);
}
.page-faq .support-figure img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .copy-list{
  display: grid;
  gap: 8px;
  margin: 16px 0;
}
.page-faq .copy-field{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--faq-line-soft);
  background: rgba(11, 39, 64, 0.6);
}
.page-faq .copy-label{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
  white-space: nowrap;
}
.page-faq .copy-value{
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
  overflow-wrap: anywhere;
}
.page-faq .copy-btn{
  padding: 5px 9px;
  border: 1px solid var(--faq-line);
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-faq .copy-btn:hover,
.page-faq .copy-btn:focus-visible{
  background: rgba(69, 224, 218, 0.12);
  border-color: var(--cyan);
  color: var(--paper);
}
.page-faq .copy-btn[data-copied]{
  border-color: rgba(76, 208, 138, 0.6);
  color: var(--green);
}
.page-faq .support-note{
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--fg-dim);
}

.page-faq .route-panel{
  margin-top: clamp(16px, 2.4vw, 24px);
  padding: var(--faq-pad);
  border: 1px solid var(--faq-line-soft);
  background: linear-gradient(135deg, rgba(18, 59, 92, 0.7), rgba(6, 24, 38, 0.9));
}
.page-faq .route-panel h3{
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}
.page-faq .route-items{
  display: grid;
  gap: 10px;
}
.page-faq .route-item{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fg-dim);
}
.page-faq .route-item b{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

/* tablet & desktop */
@media (min-width: 760px){
  .page-faq .dev-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .records-extra{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .route-item{
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 12px;
    align-items: baseline;
  }
}

@media (min-width: 820px){
  .page-faq .path-steps{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .map-row{
    grid-template-columns: 44px minmax(0, 1fr) auto minmax(0, 1fr);
    gap: 12px;
    padding: 14px 18px;
  }
  .page-faq .map-arrow{ display: block; }
  .page-faq .map-target{ grid-column: auto; }
}

@media (min-width: 900px){
  .page-faq .faq-hero{
    grid-template-columns: minmax(0, 1fr) 292px;
    align-items: end;
  }
  .page-faq .faq-hero-meta{
    grid-template-columns: minmax(0, 1fr);
  }
  .page-faq .faq-overview{
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-faq .cat-strip{
    flex-direction: column;
    align-items: stretch;
  }
  .page-faq .cat-chip{
    justify-content: space-between;
  }
  .page-faq .faq-list{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 18px;
    align-items: start;
  }
  .page-faq .rules-grid{
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-faq .support-grid2{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after{
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>