.page-faq {
  --faq-rail: 300px;
  background: var(--bg-deep);
}

.page-faq .faq-hero {
  position: relative;
  padding: clamp(72px, 12vw, 150px) 0 clamp(44px, 7vw, 88px);
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 6%, rgba(0, 255, 157, 0.07), transparent 320px),
    linear-gradient(165deg, rgba(18, 24, 58, 0.92) 0%, rgba(10, 14, 39, 0.98) 52%, rgba(10, 14, 39, 1) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--signal-green) 0%, var(--signal-orange) 100%);
  opacity: 0.9;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -160px;
  top: -120px;
  width: 460px;
  height: 460px;
  border: 1px dashed rgba(0, 255, 157, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero-copy {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-faq .faq-hero .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-faint);
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--ink-sub);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-hero .breadcrumb a:hover {
  color: var(--signal-green);
}

.page-faq .faq-hero .breadcrumb-sep {
  color: var(--ink-faint);
}

.page-faq .page-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--data-green);
}

.page-faq .page-title {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 7vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.015em;
  color: var(--ink-main);
}

.page-faq .faq-h1-sub {
  display: block;
  margin-top: 18px;
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--ink-sub);
  max-width: 30em;
}

.page-faq .page-lead {
  margin: 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--ink-sub);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero-index {
  position: relative;
  z-index: 1;
  align-self: start;
  background: linear-gradient(150deg, rgba(18, 24, 58, 0.95), rgba(13, 18, 48, 0.9));
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 22px 24px 10px;
}

.page-faq .faq-hero-index::before {
  content: "IDX";
  position: absolute;
  top: -9px;
  right: 18px;
  padding: 2px 8px;
  background: var(--bg-deep);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--signal-orange);
}

.page-faq .faq-hero-index-title {
  position: relative;
  margin: 0 0 8px;
  padding-left: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--data-green);
}

.page-faq .faq-hero-index-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal-green);
  transform: translateY(-50%);
}

.page-faq .faq-hero-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-hero-index-list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
  color: var(--ink-main);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-faq .faq-hero-index-list li:last-child a {
  border-bottom: none;
}

.page-faq .faq-hero-index-list a:hover {
  color: var(--signal-green);
  padding-left: 4px;
}

.page-faq .faq-hero-index-list .idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal-orange);
}

.page-faq .faq-section {
  position: relative;
  scroll-margin-top: calc(var(--header-h) + 16px);
  padding: clamp(52px, 8vw, 100px) 0;
  border-top: 1px dashed var(--line-soft);
  background: var(--bg-deep);
}

.page-faq .faq-section:nth-of-type(even) {
  background: var(--bg-overlay);
}

.page-faq .faq-section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 18px 24px;
  margin-bottom: clamp(28px, 5vw, 52px);
}

.page-faq .faq-section-head .section-index {
  flex: 0 0 auto;
  padding: 6px 10px;
  border: 1px solid rgba(255, 106, 0, 0.35);
  border-radius: var(--radius-sm);
  background: rgba(255, 106, 0, 0.08);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--signal-orange);
}

.page-faq .faq-section-titlepod {
  flex: 1 1 240px;
  min-width: 0;
}

.page-faq .faq-section-titlepod .section-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  line-height: 1.1;
  color: var(--ink-main);
}

.page-faq .faq-section-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-faint);
}

.page-faq .faq-route {
  display: block;
  flex: 1 1 220px;
  min-width: 180px;
  width: 100%;
  max-width: 320px;
  height: 40px;
}

.page-faq .faq-section-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

.page-faq .faq-list {
  min-width: 0;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px;
  padding: 22px 0;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-item summary:hover .faq-q,
.page-faq .faq-item[open] summary .faq-q {
  color: var(--signal-green);
}

.page-faq .faq-num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--signal-green);
}

.page-faq .faq-q {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink-main);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-toggle {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 1px;
  background: var(--signal-orange);
  transform: translate(-50%, -50%);
}

.page-faq .faq-toggle::before {
  width: 10px;
  height: 2px;
}

.page-faq .faq-toggle::after {
  width: 2px;
  height: 10px;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-toggle::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-answer {
  position: relative;
  margin: 0 0 26px;
  padding: 2px 0 4px clamp(18px, 4vw, 32px);
  border-left: 2px solid rgba(0, 255, 157, 0.45);
}

.page-faq .faq-answer p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-main);
}

.page-faq .faq-answer a {
  color: var(--data-green);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(107, 247, 196, 0.4);
}

.page-faq .faq-answer a:hover {
  color: var(--signal-green);
  text-decoration-color: var(--signal-green);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding: 7px 0 7px 46px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-main);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 8px;
  padding: 2px 6px;
  border: 1px solid rgba(0, 255, 157, 0.28);
  border-radius: 5px;
  background: rgba(0, 255, 157, 0.07);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  color: var(--data-green);
}

.page-faq .faq-aside {
  min-width: 0;
  align-self: start;
}

.page-faq .faq-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--bg-panel);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
}

.page-faq .faq-railbox {
  position: relative;
  padding: 24px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(18, 24, 58, 0.85), rgba(13, 18, 48, 0.7));
}

.page-faq .faq-railbox::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 22px;
  bottom: 22px;
  width: 3px;
  border-radius: 3px 0 0 3px;
  background: linear-gradient(180deg, var(--signal-green), var(--signal-orange));
  opacity: 0.55;
}

.page-faq .faq-railbox-title {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--hint-orange);
}

.page-faq .faq-rail-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: railstep;
}

.page-faq .faq-rail-steps li {
  position: relative;
  counter-increment: railstep;
  padding: 0 0 22px 34px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-sub);
}

.page-faq .faq-rail-steps li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-rail-steps li::before {
  content: counter(railstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal-green);
}

.page-faq .faq-rail-steps li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 24px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, rgba(0, 255, 157, 0.5), rgba(255, 106, 0, 0.25));
}

.page-faq .faq-rail-steps li:last-child::after {
  display: none;
}

.page-faq .faq-contact {
  margin: 0;
  padding: 24px 22px;
  border: 1px solid rgba(255, 106, 0, 0.25);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(255, 106, 0, 0.08), rgba(18, 24, 58, 0.9));
}

.page-faq .faq-contact dt {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--hint-orange);
}

.page-faq .faq-contact dd {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-main);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact dd:last-child {
  margin-bottom: 0;
}

.page-faq .faq-note {
  position: relative;
  margin: clamp(36px, 6vw, 64px) 0 clamp(56px, 9vw, 110px);
  padding: clamp(24px, 4vw, 36px);
  border: 1px solid var(--line-soft);
  border-left: 4px solid var(--signal-green);
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(18, 24, 58, 0.95), rgba(10, 14, 39, 0.9));
}

.page-faq .faq-note::after {
  content: "FAQ / END";
  position: absolute;
  top: 14px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
}

.page-faq .faq-note-title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--ink-main);
}

.page-faq .faq-note p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-sub);
}

.page-faq .faq-note a {
  color: var(--data-green);
  text-decoration: underline;
  text-underline-offset: 4px;
}

@media (min-width: 720px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: start;
  }

  .page-faq .faq-hero-index {
    margin-top: clamp(0px, 4vw, 48px);
  }
}

@media (min-width: 940px) {
  .page-faq .faq-section-body {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail);
    gap: 56px;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-route {
    max-width: 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
  }
}