.page-faq {
  --faq-accent: #00D4FF;
  --faq-purple: #9B5DE5;
  --faq-cta: #FF6B35;
  --faq-card: #131A2A;
  --faq-display: Impact, 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  position: relative;
  padding-bottom: 4rem;
  background:
    radial-gradient(40rem 30rem at 90% -5%, rgba(155, 93, 229, 0.12), transparent 60%),
    radial-gradient(30rem 25rem at -10% 60%, rgba(0, 212, 255, 0.07), transparent 55%);
}

.page-faq__header {
  padding: 1.5rem 0 2.25rem;
}

.page-faq__header-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-faq__header-text {
  position: relative;
  z-index: 1;
}

.page-faq__header-text .page-header__title {
  font-family: var(--faq-display);
  font-style: italic;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: clamp(2.2rem, 6vw, 3.75rem);
  line-height: 1.08;
  margin: 0.85rem 0 0.5rem;
  text-shadow: 3px 3px 0 rgba(0, 212, 255, 0.25);
}

.page-faq__header-text .page-header__intro {
  color: var(--c-muted);
  max-width: 46rem;
  font-size: 1rem;
  line-height: 1.8;
  margin: 0;
}

.page-faq__header-mark {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  width: fit-content;
  padding: 1.25rem 1.75rem 1.25rem 1.5rem;
  background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-alt) 100%);
  clip-path: polygon(0 0, 92% 0, 100% 12%, 94% 100%, 0 92%);
  transform: rotate(-2deg);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

.faq-mega {
  font-family: var(--faq-display);
  font-style: italic;
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-bg);
  letter-spacing: -1px;
}

.faq-mark-line {
  display: block;
  width: 62%;
  height: 4px;
  background: var(--c-bg);
  clip-path: polygon(0 0, 100% 20%, 92% 100%, 0 80%);
}

.faq-mark-tip {
  font-family: var(--faq-display);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--c-bg);
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.85;
}

.page-faq__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

.faq-toc {
  background: linear-gradient(150deg, var(--faq-card), #0c1322);
  border: 1px solid rgba(192, 192, 192, 0.14);
  border-left: 3px solid var(--faq-accent);
  border-radius: 0 16px 16px 0;
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-toc__label {
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-muted);
  font-weight: 700;
}

.faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.faq-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.95rem;
  background: rgba(0, 212, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 999px;
  color: var(--c-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.faq-toc__link:hover,
.faq-toc__link:focus-visible {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.5);
  transform: translateY(-2px);
}

.faq-toc__num {
  font-family: var(--faq-display);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--faq-accent);
}

.faq-toc__name {
  color: var(--c-text);
}

.faq-toc__contact {
  margin-top: 0.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(192, 192, 192, 0.1);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.faq-toc__contact-title {
  color: var(--c-text);
  font-weight: 700;
  font-size: 0.95rem;
}

.faq-toc__contact-text {
  font-size: 0.82rem;
  color: var(--c-muted);
  line-height: 1.6;
  margin: 0;
}

.faq-toc__contact .btn {
  margin-top: 0.75rem;
}

.faq-panels {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.faq-section {
  padding: 1.5rem;
  background: rgba(19, 26, 42, 0.55);
  border: 1px solid rgba(192, 192, 192, 0.1);
  border-radius: 18px;
  position: relative;
  scroll-margin-top: 5rem;
}

.faq-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 56px;
  background: linear-gradient(180deg, var(--faq-accent), var(--faq-purple));
  border-radius: 0 0 4px 4px;
}

.faq-section__title {
  font-family: var(--faq-display);
  font-style: italic;
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--c-text);
}

.faq-section__desc {
  color: var(--c-muted);
  font-size: 0.9rem;
  margin: 0 0 1.25rem;
  line-height: 1.7;
}

.faq-item {
  background: rgba(11, 15, 25, 0.75);
  border: 1px solid rgba(0, 212, 255, 0.12);
  border-radius: 12px;
  margin-bottom: 0.85rem;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item[open] {
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.08), 0 8px 24px rgba(0, 0, 0, 0.3);
}

.faq-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  cursor: pointer;
  padding: 1.15rem 1.25rem;
  gap: 1rem;
  user-select: none;
  -webkit-user-select: none;
}

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

.faq-item__head::marker {
  content: '';
  display: none;
}

.faq-item__q {
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--c-text);
  transition: color 0.2s;
}

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

.faq-item__mark {
  position: relative;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border: 1px solid rgba(0, 212, 255, 0.35);
  border-radius: 50%;
  background-image:
    linear-gradient(var(--faq-accent), var(--faq-accent)),
    linear-gradient(var(--faq-accent), var(--faq-accent));
  background-size: 12px 2px, 2px 12px;
  background-position: center;
  background-repeat: no-repeat;
  transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.faq-item[open] .faq-item__mark {
  transform: rotate(45deg);
  background-color: rgba(0, 212, 255, 0.12);
  border-color: rgba(0, 212, 255, 0.6);
}

.faq-item__body {
  padding: 0 1.25rem 1.5rem;
  animation: faq-body-in 0.35s ease;
}

@keyframes faq-body-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.faq-item__body p {
  color: var(--c-muted);
  line-height: 1.8;
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
}

.faq-item__body p:last-child {
  margin-bottom: 0;
}

.faq-item__lead {
  color: var(--c-text);
}

.faq-item__lead strong {
  color: var(--faq-accent);
}

.faq-item__note,
.faq-item__more {
  font-size: 0.85rem !important;
  line-height: 1.7 !important;
  color: var(--c-muted) !important;
}

.faq-item__note a,
.faq-item__more a {
  color: var(--faq-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 212, 255, 0.35);
}

.faq-item__note a:hover,
.faq-item__more a:hover {
  border-bottom-color: var(--faq-accent);
}

.faq-steps {
  margin: 1rem 0 1.25rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-steps__item {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  background: rgba(0, 212, 255, 0.03);
  border-left: 2px solid var(--faq-accent);
  padding: 0.85rem 1rem;
  border-radius: 0 10px 10px 0;
}

.faq-steps__num {
  font-family: var(--faq-display);
  font-style: italic;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--faq-accent);
  background: rgba(0, 212, 255, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  clip-path: polygon(8% 0, 100% 0, 90% 100%, 0 100%);
}

.faq-steps__content {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.faq-steps__title {
  font-weight: 700;
  color: var(--c-text);
  font-size: 0.95rem;
}

.faq-steps__content p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 0;
}

.faq-points {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.faq-points li {
  background: rgba(155, 93, 229, 0.05);
  border: 1px solid rgba(155, 93, 229, 0.25);
  border-radius: 10px;
  padding: 0.85rem 1rem;
}

.faq-points__title {
  display: block;
  font-weight: 700;
  color: var(--faq-purple);
  margin-bottom: 0.25rem;
  font-size: 0.92rem;
}

.faq-points p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--c-muted);
}

.faq-media {
  margin: 1.5rem 0 0.75rem;
  padding: 0.75rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(192, 192, 192, 0.18);
  border-radius: 14px;
}

.faq-media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 8px;
  background: var(--c-bg);
}

.faq-media__cap {
  display: block;
  text-align: center;
  padding: 0.65rem 0.25rem 0.1rem;
  font-size: 0.82rem;
  color: var(--c-muted);
}

.faq-media--square .faq-media__img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.faq-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.5rem 1.75rem;
  background:
    linear-gradient(120deg, rgba(0, 212, 255, 0.09), rgba(155, 93, 229, 0.12));
  border-top: 2px solid var(--faq-accent);
  border-radius: 14px;
  margin-top: 1rem;
}

.faq-foot__title {
  display: block;
  font-family: var(--faq-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--c-text);
  letter-spacing: 1px;
  margin-bottom: 0.25rem;
}

.faq-foot p {
  color: var(--c-muted);
  font-size: 0.88rem;
  margin: 0;
}

@media (min-width: 768px) {
  .faq-toc__list {
    flex-direction: column;
    gap: 0.4rem;
  }

  .faq-toc__link {
    border-radius: 10px;
    padding: 0.7rem 0.9rem;
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
  }

  .faq-toc__link::after {
    content: '→';
    margin-left: auto;
    color: var(--faq-cta);
    font-weight: 700;
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity 0.2s, transform 0.2s;
  }

  .faq-toc__link:hover::after,
  .faq-toc__link:focus-visible::after {
    opacity: 1;
    transform: translateX(0);
  }

  .faq-points {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .page-faq__header-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq__header-mark {
    margin-left: auto;
    transform: rotate(-2deg) scale(1.05);
  }

  .page-faq__layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 2.5rem;
  }

  .faq-toc {
    position: sticky;
    top: 6rem;
  }

  .faq-section {
    padding: 2rem 2.25rem;
  }
}