.page-faq {
  --faq-line: rgba(10, 26, 47, 0.12);
  background: var(--c-cloud);
  color: var(--c-deep);
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px var(--pad) 0;
  font-size: 13px;
}

.page-faq .page-hero {
  position: relative;
  background: var(--c-deep);
  color: var(--c-cloud);
  padding: clamp(40px, 8vw, 80px) var(--pad) clamp(32px, 5vw, 56px);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), 0 100%);
}

.page-faq .page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(244, 246, 248, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 246, 248, 0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 92%);
  pointer-events: none;
}

.page-faq .page-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: 40px;
  width: 420px;
  height: 120px;
  background: var(--grad-accent);
  opacity: 0.22;
  transform: skew(-18deg) rotate(-8deg);
  pointer-events: none;
}

.page-faq .page-hero-inner {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
}

.page-faq .page-hero .sec-index {
  margin-bottom: 18px;
  color: var(--c-neon);
}

.page-faq .page-hero h1 {
  font-family: var(--f-head);
  font-style: italic;
  font-weight: 900;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 760px;
}

.page-faq .page-hero-desc {
  margin: 18px 0 28px;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(244, 246, 248, 0.78);
  max-width: 600px;
}

.page-faq .page-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-faq .hero-stat {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 3px solid var(--c-neon);
  padding: 12px 16px 10px;
  min-width: 118px;
}

.page-faq .hero-stat .data-num {
  color: var(--c-neon);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
}

.page-faq .hero-stat .data-unit {
  color: var(--c-neon);
  font-size: 15px;
  font-weight: 700;
}

.page-faq .hero-stat .data-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: rgba(244, 246, 248, 0.6);
}

.page-faq .faq-tools {
  background: #ffffff;
  border-bottom: 1px solid var(--faq-line);
  border-top: 1px solid var(--faq-line);
  padding: 14px var(--pad);
  position: sticky;
  top: 0;
  z-index: 30;
}

.page-faq .faq-tools-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .filter-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 2px;
  width: 100%;
}

.page-faq .filter-bar::-webkit-scrollbar {
  display: none;
}

.page-faq .filter-bar-label {
  flex: 0 0 auto;
  color: var(--c-deep);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 0;
}

.page-faq .filter-btn {
  flex: 0 0 auto;
  font-family: var(--f-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-deep);
  background: transparent;
  border: 1px solid var(--c-grid);
  border-radius: 0;
  padding: 8px 14px;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}

.page-faq .filter-btn:hover {
  border-color: var(--c-coral);
  color: var(--c-coral);
}

.page-faq .filter-btn.is-active,
.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--c-deep);
  border-color: var(--c-deep);
  color: var(--c-neon);
}

.page-faq .faq-tools-tip {
  font-size: 11px;
  color: rgba(10, 26, 47, 0.55);
  margin: 0;
}

.page-faq .faq-layout {
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px var(--pad) 72px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-faq .faq-toc {
  background: var(--c-deep);
  color: var(--c-cloud);
  padding: 18px 20px 14px;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-toc-head {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-neon);
}

.page-faq .faq-toc-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 4px;
}

.page-faq .faq-toc-nav::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toc-nav a {
  flex: 0 0 auto;
  color: var(--c-cloud);
  text-decoration: none;
  font-family: var(--f-body);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 12px;
  border: 1px solid rgba(244, 246, 248, 0.2);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
  white-space: nowrap;
}

.page-faq .faq-toc-nav a:hover {
  border-color: var(--c-neon);
  color: var(--c-neon);
}

.page-faq .faq-toc-help {
  display: none;
}

.page-faq .faq-section {
  margin-bottom: 48px;
}

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

.page-faq .faq-sec-head {
  margin-bottom: 16px;
  border-bottom: 1px solid var(--faq-line);
  padding-bottom: 12px;
}

.page-faq .faq-sec-index {
  font-size: 12px;
  color: var(--c-coral);
  letter-spacing: 0.08em;
}

.page-faq .faq-sec-head h2 {
  font-family: var(--f-head);
  font-style: italic;
  font-weight: 900;
  font-size: clamp(24px, 3vw, 30px);
  letter-spacing: -0.02em;
  margin: 4px 0 4px;
}

.page-faq .faq-sec-head p {
  margin: 0;
  font-size: 14px;
  color: rgba(10, 26, 47, 0.65);
}

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-item {
  background: var(--c-cloud);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--c-neon);
  transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}

.page-faq .faq-item[open] {
  box-shadow: var(--shadow-card);
  background: #ffffff;
}

.page-faq .faq-q {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 14px;
  cursor: pointer;
  font-family: var(--f-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-deep);
  position: relative;
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: -2px;
}

.page-faq .faq-q-cat {
  flex: 0 0 auto;
  font-size: 10px;
  letter-spacing: 0.06em;
  padding: 4px 6px;
  background: var(--c-deep);
  color: var(--c-neon);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
}

.page-faq .faq-q-toggle {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-family: var(--f-mono);
  font-size: 22px;
  font-weight: 400;
  color: var(--c-coral);
  transition: transform 0.35s var(--ease);
}

.page-faq .faq-item[open] .faq-q-toggle {
  transform: rotate(45deg);
}

.page-faq .faq-a {
  padding: 0 16px 16px 52px;
  border-bottom: 2px solid var(--c-coral);
  color: var(--c-deep);
  font-size: 14px;
  line-height: 1.75;
}

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

.page-faq .faq-a a {
  color: var(--c-coral);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-a a:hover {
  color: var(--c-deep);
}

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

.page-faq .device-map {
  margin: 16px 0 0;
  padding: 18px;
  background: var(--c-deep);
  color: var(--c-cloud);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

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

.page-faq .device-map figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--c-neon);
  letter-spacing: 0.04em;
}

.page-faq .support-card {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--c-deep);
  color: var(--c-cloud);
  margin-top: 28px;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
  overflow: hidden;
}

.page-faq .support-card-media {
  background: var(--c-lblue);
}

.page-faq .support-card-media img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-faq .support-card-body {
  padding: 24px 22px;
}

.page-faq .support-card-body h3 {
  font-family: var(--f-head);
  font-style: italic;
  font-weight: 900;
  font-size: 24px;
  margin: 8px 0 10px;
}

.page-faq .support-card-body > p {
  margin-top: 0;
  margin-bottom: 16px;
  font-size: 14px;
  color: rgba(244, 246, 248, 0.72);
}

.page-faq .support-list {
  margin: 0 0 20px;
  display: grid;
  gap: 8px;
}

.page-faq .support-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  border-bottom: 1px dashed rgba(244, 246, 248, 0.2);
  padding-bottom: 8px;
}

.page-faq .support-row dt {
  color: rgba(244, 246, 248, 0.6);
}

.page-faq .support-row dd {
  margin: 0;
  color: var(--c-neon);
  font-weight: 600;
  text-align: right;
  word-break: break-all;
}

.page-faq .support-card-body .btn {
  width: 100%;
  text-align: center;
}

@media (min-width: 768px) {
  .page-faq .faq-tools-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .page-faq .faq-tools-tip {
    margin: 0;
    white-space: nowrap;
  }

  .page-faq .filter-bar {
    flex-wrap: wrap;
  }

  .page-faq .support-card {
    grid-template-columns: minmax(280px, 360px) 1fr;
  }

  .page-faq .support-card-media {
    min-height: 100%;
  }

  .page-faq .support-card-media img {
    height: 100%;
    min-height: 320px;
    aspect-ratio: auto;
  }

  .page-faq .support-card-body .btn {
    width: auto;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 88px;
    padding: 24px 22px;
    max-height: calc(100vh - 120px);
    align-self: start;
  }

  .page-faq .faq-toc-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .page-faq .faq-toc-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    white-space: normal;
    padding: 10px 12px;
  }

  .page-faq .faq-toc-nav a::after {
    content: "→";
    color: var(--c-neon);
    font-family: var(--f-mono);
  }

  .page-faq .faq-toc-help {
    display: block;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid rgba(244, 246, 248, 0.15);
  }

  .page-faq .faq-toc-help p {
    font-size: 14px;
    color: rgba(244, 246, 248, 0.7);
    margin: 0 0 12px;
  }
}