.page-faq{
  --faq-gold-line: rgba(212, 175, 55, 0.32);
  --faq-lavender: rgba(122, 111, 240, 0.16);
  --faq-radius: 20px;
  position: relative;
}
.page-faq .container{
  position: relative;
  z-index: 2;
}
.page-faq [id]{
  scroll-margin-top: calc(var(--header-top) + var(--header-pill-h) + 1.25rem);
}
.page-faq .section-heading{
  margin-bottom: 2.25rem;
}
.page-faq .breadcrumb{
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}
.page-faq .breadcrumb a{
  color: var(--color-text-secondary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.page-faq .breadcrumb a:hover{
  color: var(--color-accent-gold);
  border-color: var(--color-border-gold);
}
.page-faq__crumb-sep{
  color: var(--color-border);
}

/* ===== hero ===== */
.page-faq__hero{
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-top) + var(--header-pill-h) + 2.75rem);
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}
.page-faq__hero::before{
  content: "";
  position: absolute;
  top: 6rem;
  right: -12%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(122,111,240,0.22), transparent 68%);
  pointer-events: none;
}
.page-faq__hero::after{
  content: "";
  position: absolute;
  bottom: -6rem;
  left: 2%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(212,175,55,0.14), transparent 66%);
  pointer-events: none;
}
.page-faq__hero-inner{
  display: grid;
  gap: 2.25rem;
  align-items: center;
}
.page-faq__hero-copy{
  position: relative;
  z-index: 2;
}
.page-faq__hero-kicker{
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-accent-gold);
  letter-spacing: 0.08em;
  margin: 0 0 1.5rem;
}
.page-faq h1{
  font-family: var(--font-title);
  font-size: var(--fs-hero);
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 0 0 0.9rem;
}
.page-faq__hero-lead{
  font-size: var(--fs-subtitle);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin: 0 0 1.25rem;
  max-width: 22ch;
}
.page-faq__hero-desc{
  max-width: 60ch;
  color: var(--color-text-secondary);
  margin: 0;
}
.page-faq__hero-fig{
  margin: 0;
  position: relative;
  z-index: 1;
}
.page-faq__hero-fig::before{
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  border: 1px solid var(--faq-gold-line);
  border-radius: var(--faq-radius);
  pointer-events: none;
}
.page-faq__hero-fig img{
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--faq-radius);
  box-shadow: var(--shadow-card);
  object-fit: cover;
}
.page-faq__tick{
  position: absolute;
  width: 26px;
  height: 26px;
  z-index: 1;
  pointer-events: none;
}
.page-faq__tick--tl{
  top: 2.75rem;
  left: 1rem;
  border-top: 2px solid var(--color-accent-gold);
  border-left: 2px solid var(--color-accent-gold);
  opacity: 0.65;
}
.page-faq__tick--br{
  bottom: 2.5rem;
  right: 1rem;
  border-bottom: 2px solid var(--color-accent-gold-bright);
  border-right: 2px solid var(--color-accent-gold-bright);
  opacity: 0.45;
}

/* ===== search ===== */
.page-faq__search.section-block{
  padding-top: 0;
  padding-bottom: 1.75rem;
}
.page-faq__search-box{
  display: flex;
  align-items: center;
  gap: 0.875rem;
  max-width: 760px;
  margin: 0 auto;
  padding: 0.875rem 1.25rem;
  background: var(--color-glass);
  border: 1px solid var(--color-border);
  border-bottom: 2px solid var(--color-accent-gold);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card);
  transition: border-color var(--ease), box-shadow var(--ease);
}
.page-faq__search-box:focus-within{
  border-bottom-color: var(--color-accent-gold-bright);
  box-shadow: 0 0 0 4px var(--faq-lavender);
}
.page-faq__search-icon{
  color: var(--color-accent-gold);
  flex: none;
}
.page-faq__search-input{
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.25rem 0;
}
.page-faq__search-input::placeholder{
  color: var(--color-text-secondary);
  opacity: 0.85;
}
.page-faq__search-tag{
  display: none;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-accent-gold);
  white-space: nowrap;
  letter-spacing: 0.04em;
  border-left: 1px solid var(--color-border);
  padding-left: 1rem;
}

/* ===== hot qa grid ===== */
.page-faq__grid{
  display: grid;
  gap: 1.25rem;
}
.page-faq__qa{
  padding: 1.5rem 1.5rem 1.4rem;
  border-top: 2px solid var(--color-accent-gold);
  transition: border-color var(--ease), box-shadow var(--ease);
}
.page-faq__qa:hover{
  border-top-color: var(--color-accent-gold-bright);
  box-shadow: 0 12px 36px rgba(0,0,0,0.28);
}
.page-faq__qa[open]{
  border-top-color: var(--color-accent-gold-bright);
  box-shadow: 0 14px 40px rgba(0,0,0,0.3);
}
.page-faq__qa summary{
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
  font-size: 1.06rem;
  line-height: 1.55;
  color: var(--color-text-primary);
  border-radius: var(--radius-sm);
}
.page-faq__qa summary::-webkit-details-marker{
  display: none;
}
.page-faq__qa summary::after{
  content: "+";
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--color-accent-gold);
  flex: none;
  width: 1.9rem;
  height: 1.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.1rem;
  border: 1px solid var(--color-border-gold);
  border-radius: 50%;
  transition: transform var(--ease), color var(--ease), border-color var(--ease);
}
.page-faq__qa[open] summary::after{
  content: "−";
  transform: rotate(180deg);
  color: var(--color-accent-gold-bright);
  border-color: var(--color-accent-gold);
}
.page-faq__qa summary:focus-visible{
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 4px;
}
.page-faq__qa-body{
  padding-top: 1rem;
  margin-top: 1rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: var(--fs-base);
  line-height: 1.8;
}
.page-faq__qa-body p{
  margin: 0 0 0.85rem;
  max-width: 68ch;
}
.page-faq__qa-body p:last-child{
  margin-bottom: 0;
}
.page-faq__steps,
.page-faq__list{
  margin: 0 0 0.9rem;
  padding-left: 1.3rem;
  display: grid;
  gap: 0.35rem;
  line-height: 1.8;
}
.page-faq__qa-note{
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-accent-gold-bright);
  margin-top: 0.85rem;
}
.page-faq__qa-link{
  color: var(--color-accent-gold);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border-gold);
  padding-bottom: 1px;
  transition: color var(--ease), border-color var(--ease);
}
.page-faq__qa-link:hover{
  color: var(--color-accent-gold-bright);
  border-color: var(--color-accent-gold);
}

/* ===== more panel ===== */
.page-faq__qa-more{
  padding: 2.25rem 1.75rem;
  text-align: center;
  display: grid;
  gap: 0.5rem;
  align-content: center;
  justify-items: center;
  border-top: 2px solid var(--color-accent-purple);
  background: linear-gradient(135deg, rgba(122,111,240,0.12), transparent 55%), var(--color-glass);
}
.page-faq__qa-more__index{
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-accent-purple);
  letter-spacing: 0.12em;
  margin: 0 0 0.35rem;
}
.page-faq__qa-more h3{
  font-family: var(--font-title);
  font-size: 1.45rem;
  margin: 0;
}
.page-faq__qa-more p{
  color: var(--color-text-secondary);
  max-width: 54ch;
  margin: 0 0 0.75rem;
}
.page-faq__qa-more__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 0.5rem;
}
.page-faq__qa-more .btn--primary,
.page-faq__qa-more .btn--ghost{
  text-decoration: none;
}

/* ===== scenarios ===== */
.page-faq__scenarios{
  position: relative;
  overflow: hidden;
}
.page-faq__glow{
  position: absolute;
  border-radius: 50%;
  filter: blur(46px);
  pointer-events: none;
}
.page-faq__glow--purple{
  width: 280px;
  height: 280px;
  background: rgba(122,111,240,0.16);
  top: 24%;
  left: -7%;
}
.page-faq__glow--gold{
  width: 220px;
  height: 220px;
  background: rgba(212,175,55,0.10);
  bottom: 6%;
  right: -5%;
}
.page-faq__legend{
  margin-bottom: 1.75rem;
}
.page-faq__scenario-grid{
  display: grid;
  gap: 1.25rem;
}
.page-faq__scenario{
  padding: 2rem 1.75rem;
  border-top: 2px solid var(--color-border-gold);
  position: relative;
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.page-faq__scenario:hover{
  transform: translateY(-4px);
  border-top-color: var(--color-accent-gold);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}
.page-faq__scenario h3{
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-title);
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
}
.page-faq__scenario h3 svg{
  flex: none;
  width: 36px;
  height: 36px;
  color: var(--color-accent-gold);
}
.page-faq__scenario > p{
  max-width: 56ch;
  color: var(--color-text-secondary);
  margin: 0 0 1.25rem;
}
.page-faq__scenario-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}
.page-faq__scenario-list a{
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--color-text-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.page-faq__scenario-list a::before{
  content: "→";
  font-family: var(--font-mono);
  color: var(--color-accent-gold);
  transition: transform var(--ease);
}
.page-faq__scenario-list a:hover{
  color: var(--color-accent-gold);
  border-color: var(--color-border-gold);
}
.page-faq__scenario-list a:hover::before{
  transform: translateX(3px);
}

/* ===== change ===== */
.page-faq__change{
  display: grid;
  gap: 2.25rem;
  padding: clamp(1.75rem, 4vw, 3rem);
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-card);
  background: radial-gradient(circle at 85% 8%, rgba(122,111,240,0.15), transparent 42%), linear-gradient(160deg, rgba(36,28,51,0.72), rgba(26,20,36,0.78)), var(--color-glass);
  overflow: hidden;
}
.page-faq__change-heading{
  margin-bottom: 1.5rem;
}
.page-faq__change-copy p{
  max-width: 58ch;
  color: var(--color-text-secondary);
  margin-bottom: 1.75rem;
}
.page-faq__timeline{
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-faq__timeline::before{
  content: "";
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 0.55rem;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-accent-gold), var(--color-border));
}
.page-faq__timeline li{
  position: relative;
  padding-left: 2.1rem;
  margin-bottom: 1.15rem;
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}
.page-faq__timeline li:last-child{
  margin-bottom: 0;
}
.page-faq__timeline li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0.3rem;
  width: 1.1rem;
  height: 1.1rem;
  border: 1px solid var(--color-accent-gold);
  border-radius: 50%;
  background: var(--color-bg);
}
.page-faq__timeline li::after{
  content: "";
  position: absolute;
  left: 0.38rem;
  top: 0.65rem;
  width: 0.34rem;
  height: 0.34rem;
  border-radius: 50%;
  background: var(--color-accent-gold);
}
.page-faq__timeline-year{
  font-family: var(--font-mono);
  color: var(--color-accent-gold-bright);
  margin-right: 0.5rem;
  font-size: var(--fs-sm);
}

/* ===== contact ===== */
.page-faq__contact{
  position: relative;
  border-top: 1px solid var(--color-border);
}
.page-faq__contact-grid{
  display: grid;
  gap: 2.25rem;
  align-items: center;
}
.page-faq__contact-lead{
  max-width: 58ch;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}
.page-faq__contact-list{
  margin: 0 0 1.75rem;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-faq__contact-row{
  display: grid;
  gap: 0.2rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent-gold);
  border-radius: var(--radius-sm);
  background: var(--color-glass);
}
.page-faq__contact-row dt{
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 600;
}
.page-faq__contact-tag{
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  line-height: 1;
  color: var(--color-bg);
  background: var(--color-accent-gold);
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  letter-spacing: 0.05em;
}
.page-faq__contact-row dd{
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-sm);
}
.page-faq__contact-row dd:first-of-type{
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-text-primary);
  word-break: break-all;
}
.page-faq__contact-note{
  margin: 0;
  max-width: 60ch;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--color-border-gold);
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}
.page-faq__contact-note a{
  color: var(--color-accent-gold);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border-gold);
}
.page-faq__contact-note a:hover{
  color: var(--color-accent-gold-bright);
}
.page-faq__contact-fig{
  margin: 0;
  position: relative;
}
.page-faq__contact-fig::after{
  content: "";
  position: absolute;
  inset: -10px 10px 10px -10px;
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-card);
  pointer-events: none;
}
.page-faq__contact-fig img{
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  object-fit: cover;
}

/* ===== responsive ===== */
@media (min-width: 640px){
  .page-faq__search-tag{
    display: inline-block;
  }
}
@media (min-width: 720px){
  .page-faq__grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }
  .page-faq__qa--wide{
    grid-column: span 2;
  }
  .page-faq__scenario-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }
}
@media (min-width: 860px){
  .page-faq__hero-inner{
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 3rem;
  }
  .page-faq__change{
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
    align-items: center;
  }
  .page-faq__contact-grid{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 3rem;
  }
}
@media (min-width: 1080px){
  .page-faq__scenario-grid{
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-faq__scenario--login{
    grid-column: 1 / 6;
  }
  .page-faq__scenario--version{
    grid-column: 6 / 13;
  }
  .page-faq__scenario--migrate{
    grid-column: 2 / 8;
  }
  .page-faq__scenario--usage{
    grid-column: 8 / 13;
  }
}

/* ===== reduced motion ===== */
@media (prefers-reduced-motion: reduce){
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after{
    transition-duration: 0.01ms !important;
    animation: none !important;
  }
  .page-faq__scenario:hover{
    transform: none;
  }
}