.page-faq {
  --faq-panel: var(--color-bg-raised);
  --faq-line: rgba(200, 255, 0, 0.26);
  --faq-blue-line: rgba(0, 229, 255, 0.32);
  --faq-text-soft: #B9C2C8;
  --faq-accent-soft: rgba(200, 255, 0, 0.06);
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(0, 229, 255, 0.06), transparent 60%),
    var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  padding-bottom: clamp(64px, 8vw, 112px);
}

.page-faq .faq-hero {
  position: relative;
  padding: clamp(40px, 6vw, 72px) 0 clamp(32px, 5vw, 56px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(110deg, rgba(200, 255, 0, 0.08) 0%, rgba(200, 255, 0, 0.02) 42%, transparent 65%),
    linear-gradient(290deg, rgba(0, 229, 255, 0.08) 0%, transparent 45%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent2) 100%);
  opacity: 0.65;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 16px;
}

.page-faq .faq-hero h1 {
  margin: 16px 0 14px;
  font-family: var(--font-head);
  font-style: oblique;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.page-faq .faq-hero-lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-text-soft);
}

.page-faq .faq-status {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-top: 2px solid var(--color-accent);
  background: var(--faq-panel);
  padding: 18px 16px;
}

.page-faq .faq-status-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.page-faq .faq-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-moss);
  box-shadow: 0 0 12px rgba(74, 124, 89, 0.9);
}

.page-faq .faq-status-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin: 0;
}

.page-faq .faq-status-cell {
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 12px 6px;
  text-align: center;
}

.page-faq .faq-status-cell dt {
  font-size: 11px;
  color: var(--color-gray);
  letter-spacing: 0.06em;
  margin: 0 0 6px;
}

.page-faq .faq-status-cell dd {
  margin: 0;
  font-family: var(--font-head);
  font-style: oblique;
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1;
  color: var(--color-accent);
}

.page-faq .faq-layout {
  padding-top: clamp(36px, 5vw, 64px);
}

.page-faq .faq-rail {
  background: rgba(19, 26, 34, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 16px;
  margin-bottom: 32px;
}

.page-faq .faq-rail-index {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--color-gray);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.page-faq .faq-rail-nav {
  display: grid;
  gap: 4px;
  width: 100%;
}

.page-faq .faq-rail-link {
  display: flex;
  gap: 12px;
  align-items: baseline;
  text-decoration: none;
  color: var(--color-text);
  padding: 10px 12px;
  border-left: 3px solid transparent;
  font-size: 14px;
  line-height: 1.4;
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-faq .faq-rail-link:hover {
  background: var(--faq-accent-soft);
  border-left-color: var(--color-accent);
}

.page-faq .faq-rail-no {
  font-family: var(--font-head);
  font-style: oblique;
  font-size: 14px;
  color: var(--color-accent);
  flex: 0 0 auto;
}

.page-faq .faq-rail-more {
  display: block;
  text-decoration: none;
  color: var(--color-accent2);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 4px 2px;
}

.page-faq .faq-rail-more:hover {
  text-decoration: underline;
}

.page-faq .faq-chapter {
  scroll-margin-top: calc(var(--header-h) + 20px);
  padding-top: clamp(36px, 5vw, 56px);
}

.page-faq .faq-chapter + .faq-chapter {
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: clamp(36px, 5vw, 56px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.page-faq .faq-chapter-head {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.page-faq .faq-chapter-head-main {
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-faq .faq-chapter-head .chapter-no {
  font-family: var(--font-head);
  font-style: oblique;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1;
  color: var(--color-accent);
  background: var(--faq-accent-soft);
  padding: 10px 14px;
  border-left: 3px solid var(--color-accent);
}

.page-faq .faq-chapter-head .chapter-title {
  margin: 0;
  font-family: var(--font-head);
  font-style: oblique;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.15;
}

.page-faq .faq-chapter-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-gray);
  max-width: 50ch;
}

.page-faq .faq-chapter-grid {
  display: grid;
  gap: 24px;
  align-items: start;
}

.page-faq .faq-accordion {
  display: grid;
  gap: 12px;
}

.page-faq .faq-figure {
  position: relative;
  margin: 0;
  background: var(--faq-panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 10px 10px 0;
}

.page-faq .faq-figure::before {
  content: "";
  position: absolute;
  top: 10px;
  right: 10px;
  width: 48px;
  height: 48px;
  border-top: 1px solid var(--color-accent);
  border-right: 1px solid var(--color-accent);
  transform: skewY(-12deg);
  pointer-events: none;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.03);
}

.page-faq .faq-figure figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  justify-content: space-between;
  align-items: flex-start;
  padding: 12px 2px 14px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--color-gray);
}

.page-faq .faq-figure figcaption::before {
  content: "↑";
  color: var(--color-accent);
  font-size: 12px;
  line-height: 1.6;
}

.page-faq .faq-figure-link {
  color: var(--color-accent2);
  text-decoration: none;
  font-weight: 600;
}

.page-faq .faq-figure-link:hover {
  text-decoration: underline;
}

.page-faq .faq-item {
  background: var(--faq-panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid rgba(255, 255, 255, 0.14);
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(200, 255, 0, 0.05), rgba(200, 255, 0, 0.01) 70%);
  border-left-color: var(--color-accent);
}

.page-faq .faq-item-title {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 14px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
}

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

.page-faq .faq-item-title:hover {
  background: var(--faq-accent-soft);
}

.page-faq .faq-item-no {
  font-family: var(--font-head);
  font-style: oblique;
  font-size: 13px;
  color: var(--color-accent);
  flex: 0 0 auto;
}

.page-faq .faq-item-tag {
  flex: 0 0 auto;
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  border: 1px solid rgba(200, 255, 0, 0.4);
  background: var(--faq-accent-soft);
  padding: 5px 7px;
  border-radius: 1px;
}

.page-faq .faq-item-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item-marker {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 1px;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-item-marker::before,
.page-faq .faq-item-marker::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  background: var(--color-accent2);
  transform: translate(-50%, -50%);
  transition: opacity 0.2s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-item-marker::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item-marker {
  border-color: var(--color-accent);
}

.page-faq .faq-item[open] .faq-item-marker::after {
  opacity: 0;
}

.page-faq .faq-item-body {
  padding: 0 14px 18px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-text-soft);
  margin: 0;
}

.page-faq .faq-item-body p {
  margin: 14px 0 0;
}

.page-faq details[open] .faq-item-body {
  animation: faq-item-reveal 0.35s var(--ease);
}

@keyframes faq-item-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-tips-grid {
  display: grid;
  gap: 12px;
}

.page-faq .faq-support {
  margin-top: clamp(28px, 4vw, 44px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 24px;
  background: linear-gradient(120deg, rgba(0, 229, 255, 0.1) 0%, rgba(19, 26, 34, 0.6) 50%);
  border: 1px solid var(--faq-blue-line);
  border-left: 4px solid var(--color-accent2);
  padding: clamp(20px, 3.4vw, 30px);
}

.page-faq .faq-support-label {
  display: block;
  font-family: var(--font-head);
  font-style: oblique;
  font-size: 18px;
  line-height: 1.3;
  color: var(--color-text);
  margin: 0 0 6px;
}

.page-faq .faq-support p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-gray);
  max-width: 52ch;
}

.page-faq .faq-support p a {
  color: var(--color-accent2);
  text-decoration: none;
  font-weight: 600;
}

.page-faq .faq-support p a:hover {
  text-decoration: underline;
}

.page-faq .faq-support .btn {
  flex: 0 0 auto;
  text-decoration: none;
}

@media (min-width: 680px) {
  .page-faq .faq-rail {
    display: grid;
    grid-template-columns: 1fr;
  }

  .page-faq .faq-rail-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-rail-more {
    justify-self: end;
    padding-top: 12px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-tips-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-faq .faq-tips-grid .faq-item:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-chapter-grid {
    gap: 36px;
  }

  .page-faq #chapter-download .faq-chapter-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  }

  .page-faq #chapter-account .faq-chapter-grid {
    grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    display: grid;
    grid-template-columns: 1fr;
    margin-bottom: 0;
  }

  .page-faq .faq-rail-nav {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: end;
    gap: 40px;
  }
}