.page-faq {
  --faq-line: rgba(160, 176, 192, 0.28);
  --faq-line-strong: rgba(160, 176, 192, 0.5);
  --faq-green: #39FF14;
  --faq-orange: #FF6A00;
  --faq-bg-soft: rgba(30, 42, 58, 0.72);
  --faq-bg-deep: rgba(11, 29, 58, 0.82);
  position: relative;
  background:
    linear-gradient(rgba(160, 176, 192, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(160, 176, 192, 0.05) 1px, transparent 1px),
    var(--color-bg);
  background-size: 32px 32px;
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

.page-faq__topline {
  display: flex;
  justify-content: space-between;
  padding: 8px 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--color-muted);
  border-bottom: 1px solid var(--faq-line);
  background: rgba(11, 29, 58, 0.9);
  overflow-x: auto;
  white-space: nowrap;
}

.page-faq__topline span {
  margin-right: 16px;
}

.page-faq .faq-hero {
  padding: 40px 20px 24px;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 28px;
}

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

.page-faq .faq-hero__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 14px;
  padding: 4px 12px;
  border: 1px solid rgba(57, 255, 20, 0.4);
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--faq-green);
  background: rgba(57, 255, 20, 0.05);
}

.page-faq .faq-hero__dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--faq-green);
  box-shadow: 0 0 8px var(--faq-green);
  animation: page-faq-pulse 2s infinite;
}

@keyframes page-faq-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.page-faq .faq-hero__kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--faq-green);
  text-transform: uppercase;
  margin: 0 0 8px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.15;
  margin: 0 0 12px;
  color: var(--color-white);
  text-shadow: 0 0 20px rgba(57, 255, 20, 0.18);
}

.page-faq .faq-hero__lead {
  font-size: 1rem;
  color: var(--color-muted);
  margin: 0 0 20px;
}

.page-faq .breadcrumbs {
  font-size: 13px;
  color: var(--color-muted);
}

.page-faq .breadcrumbs a {
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line-strong);
  transition: color 0.2s, border-color 0.2s;
}

.page-faq .breadcrumbs a:hover {
  color: var(--faq-green);
  border-color: var(--faq-green);
}

.page-faq .breadcrumbs__sep {
  margin: 0 8px;
  color: var(--color-muted);
}

.page-faq .faq-hero__media {
  position: relative;
  height: 200px;
  border: 1px solid var(--faq-line-strong);
  background: var(--color-panel);
  overflow: hidden;
  transform: rotate(-1deg) translateY(2px);
}

.page-faq .faq-hero__media::before {
  content: "COVER / 1200×400";
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--color-muted);
  background: rgba(11, 29, 58, 0.75);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-hero__media::after {
  content: "GRID 39.13N / 117.20E";
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 2;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--faq-green);
  background: rgba(11, 29, 58, 0.75);
  border: 1px solid rgba(57, 255, 20, 0.3);
}

.page-faq .faq-hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-statbar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 0 20px 32px;
}

.page-faq .faq-statbar__item {
  text-align: center;
  border: 1px solid var(--faq-line);
  background: rgba(30, 42, 58, 0.5);
  padding: 16px 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.page-faq .faq-statbar__item:hover {
  border-color: rgba(57, 255, 20, 0.45);
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.12);
}

.page-faq .faq-statbar__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--faq-green);
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.page-faq .faq-statbar__label {
  display: block;
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 0.12em;
  margin-top: 4px;
}

.page-faq .faq-tabs-section {
  padding: 8px 0 48px;
}

.page-faq .faq-tabs-section__head {
  display: grid;
  gap: 8px;
  margin-bottom: 24px;
  padding: 0 20px;
}

.page-faq .faq-tabs-section__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--faq-orange);
  text-transform: uppercase;
  margin: 0 0 4px;
}

.page-faq .faq-tabs-section__head h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.7rem;
  margin: 0;
  color: var(--color-white);
}

.page-faq .faq-tabs-section__note {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.page-faq .faq-tabs__nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--faq-line-strong);
  margin-bottom: 24px;
  padding: 0 20px;
}

.page-faq .faq-tabs__btn {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 16px;
  border: 1px solid transparent;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.page-faq .faq-tabs__btn:hover,
.page-faq .faq-tabs__btn:focus-visible {
  color: var(--color-white);
  outline: none;
  background: rgba(57, 255, 20, 0.06);
}

.page-faq .faq-tabs__btn[aria-selected="true"] {
  color: var(--color-white);
  background: rgba(57, 255, 20, 0.1);
  border-color: var(--faq-line);
  border-bottom-color: var(--faq-green);
}

.page-faq .faq-tabs__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faq-orange);
}

.page-faq .faq-tabs__panel {
  position: relative;
  background: var(--faq-bg-soft);
  border: 1px solid rgba(160, 176, 192, 0.24);
  padding: 28px 16px 20px;
  margin: 0 20px;
}

.page-faq .faq-tabs__panel[hidden] {
  display: none;
}

.page-faq .faq-tabs__panel::before {
  content: "PANEL:" attr(data-tabs-panel) " // 60S";
  position: absolute;
  right: 10px;
  bottom: 8px;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  background: rgba(11, 29, 58, 0.7);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-grid {
  display: grid;
  gap: 24px;
}

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

.page-faq .faq-item {
  position: relative;
  padding-left: 4px;
  border: 1px solid var(--faq-line);
  background: rgba(11, 29, 58, 0.5);
  transition: border-color 0.2s, background 0.2s;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--faq-line);
  transition: background 0.2s;
}

.page-faq .faq-item[open] {
  border-color: rgba(57, 255, 20, 0.5);
  background: rgba(11, 29, 58, 0.8);
}

.page-faq .faq-item[open]::before {
  background: var(--faq-green);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--color-text);
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--faq-green);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faq-green);
  border: 1px solid rgba(57, 255, 20, 0.4);
  border-radius: 2px;
  padding: 2px 6px;
  flex-shrink: 0;
}

.page-faq .faq-item__body {
  flex: 1;
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .faq-item__icon {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--faq-green);
  transition: transform 0.2s, color 0.2s;
  flex-shrink: 0;
  line-height: 1;
}

.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
  color: var(--faq-orange);
}

.page-faq .faq-item__a {
  padding: 0 14px 16px 42px;
  color: var(--color-muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item__a a {
  color: var(--faq-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 20, 0.4);
  transition: border-color 0.2s, color 0.2s;
}

.page-faq .faq-item__a a:hover {
  border-color: var(--faq-green);
  color: var(--color-white);
}

.page-faq .faq-guide {
  position: relative;
  border: 1px dashed var(--faq-line-strong);
  padding: 12px;
  background: rgba(22, 35, 55, 0.6);
  transform: rotate(1deg);
  align-self: start;
}

.page-faq .faq-guide__media {
  border: 1px solid var(--faq-line);
  background: var(--color-panel-2);
}

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

.page-faq .faq-guide__caption {
  padding: 12px 6px 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.page-faq .faq-guide__caption span {
  display: block;
  color: var(--faq-orange);
  margin-bottom: 4px;
  letter-spacing: 0.18em;
}

.page-faq .faq-guide__caption p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.page-faq .faq-support-card {
  padding: 8px 20px 56px;
}

.page-faq .faq-support-card__inner {
  position: relative;
  background: var(--gradient-haihe);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 36px 24px 40px;
  text-align: center;
  overflow: hidden;
}

.page-faq .faq-support-card__inner::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--faq-orange);
}

.page-faq .faq-support-card__inner::after {
  content: "NODE 01 // SUPPORT";
  position: absolute;
  top: 10px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: rgba(224, 230, 237, 0.5);
}

.page-faq .faq-support-card__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--faq-orange);
  text-transform: uppercase;
}

.page-faq .faq-support-card__inner h2 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.6rem;
  color: var(--color-white);
}

.page-faq .faq-support-card__inner p {
  margin: 0 0 24px;
  color: var(--color-muted);
}

.page-faq .faq-support-card__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-faq .faq-support-card__actions .btn {
  padding: 12px 26px;
  font-size: 15px;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.page-faq .faq-support-card__actions .btn--outline {
  border: 1px solid var(--color-text);
  color: var(--color-text);
  background: transparent;
}

.page-faq .faq-support-card__actions .btn--outline:hover {
  border-color: var(--faq-green);
  color: var(--faq-green);
}

.page-faq .faq-support-card__actions .btn--warning {
  border: 1px solid var(--faq-orange);
  background: var(--faq-orange);
  color: var(--color-white);
}

.page-faq .faq-support-card__actions .btn--warning:hover {
  background: transparent;
  color: var(--faq-orange);
}

@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 56px 24px 40px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
  }

  .page-faq .faq-hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
  }

  .page-faq .faq-hero__media {
    height: 320px;
  }

  .page-faq .faq-statbar {
    gap: 16px;
    padding: 0 24px 40px;
  }

  .page-faq .faq-statbar__num {
    font-size: 2rem;
  }

  .page-faq .faq-statbar__label {
    font-size: 13px;
  }

  .page-faq .faq-tabs-section {
    padding: 8px 0 64px;
  }

  .page-faq .faq-tabs-section__head {
    grid-template-columns: 1fr auto;
    align-items: end;
    padding: 0 24px;
  }

  .page-faq .faq-tabs-section__head h2 {
    font-size: 2.1rem;
  }

  .page-faq .faq-tabs-section__note {
    max-width: 360px;
    text-align: right;
  }

  .page-faq .faq-tabs__nav {
    flex-wrap: nowrap;
    padding: 0 24px;
  }

  .page-faq .faq-tabs__btn {
    padding: 14px 24px;
  }

  .page-faq .faq-tabs__panel {
    padding: 32px 28px 28px;
    margin: 0 24px;
  }

  .page-faq .faq-grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
    gap: 32px;
  }

  .page-faq .faq-item__q {
    padding: 16px 18px;
  }

  .page-faq .faq-item__a {
    padding: 0 18px 18px 54px;
  }

  .page-faq .faq-guide {
    margin-top: 18px;
  }

  .page-faq .faq-support-card {
    padding: 8px 24px 72px;
  }

  .page-faq .faq-support-card__inner {
    padding: 48px 40px 52px;
  }

  .page-faq .faq-support-card__inner h2 {
    font-size: 2rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero__inner {
    gap: 56px;
  }

  .page-faq .faq-tabs__btn {
    padding: 16px 32px;
  }

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

  .page-faq .faq-tabs-section__head,
  .page-faq .faq-tabs__nav {
    padding: 0;
  }
}