.page-faq {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.25rem 1rem 3.5rem;
  background-color: var(--bg-deep);
  background-image:
    linear-gradient(rgba(136, 146, 176, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(136, 146, 176, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--text-main);
}

.page-faq .breadcrumb {
  margin: 0 0 1rem;
  font-size: .85rem;
}
.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.page-faq .breadcrumb-link {
  color: var(--text-sub);
  text-decoration: none;
  transition: color .2s;
}
.page-faq .breadcrumb-link:hover {
  color: var(--primary);
}
.page-faq .breadcrumb-sep {
  color: var(--text-muted);
}
.page-faq .breadcrumb-item[aria-current="page"] {
  color: var(--primary);
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(57, 255, 20, 0.1), transparent 42%),
    linear-gradient(315deg, rgba(255, 107, 53, 0.08), transparent 38%),
    rgba(17, 34, 64, 0.85);
  border: 1px solid rgba(136, 146, 176, 0.16);
  clip-path: polygon(0 0, calc(100% - 32px) 0, 100% 32px, 100% 100%, 0 100%);
  padding: 1.5rem 1.25rem;
}
.page-faq .faq-hero-copy {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero .section-kicker {
  margin: 0 0 .5rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--primary);
}
.page-faq .faq-hero-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 4.6rem);
  line-height: .92;
  letter-spacing: .01em;
  text-transform: uppercase;
  transform: skewX(-5deg);
}
.page-faq .faq-hero-desc {
  max-width: 56rem;
  margin: 0;
  color: var(--text-sub);
  font-size: 1.02rem;
  line-height: 1.6;
}
.page-faq .faq-hero-desc strong {
  color: var(--text-main);
}
.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.25rem;
}
.page-faq .faq-hero-img {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 1.5rem;
  border: 1px solid rgba(57, 255, 20, 0.25);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .85rem;
  margin: 1.25rem 0 2rem;
}
.page-faq .faq-fact {
  background: linear-gradient(135deg, rgba(29, 41, 81, 0.9), rgba(17, 34, 64, 0.7));
  border-left: 3px solid var(--accent);
  padding: .8rem .9rem;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}
.page-faq .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  color: var(--primary);
}
.page-faq .stat-label {
  display: block;
  margin-top: .3rem;
  font-size: .8rem;
  color: var(--text-muted);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1rem;
}
.page-faq .faq-aside {
  display: grid;
  gap: 1rem;
  align-content: start;
}
.page-faq .faq-aside-card {
  background: rgba(17, 34, 64, 0.8);
  border: 1px solid rgba(136, 146, 176, 0.18);
  padding: 1.1rem;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}
.page-faq .faq-aside-kicker {
  margin: 0 0 .25rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--primary);
}
.page-faq .faq-aside-title {
  margin: 0 0 .75rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  text-transform: uppercase;
  transform: skewX(-4deg);
}
.page-faq .faq-aside-nav {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}
.page-faq .faq-aside-nav a {
  display: block;
  padding: .5rem .6rem;
  color: var(--text-sub);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .2s, border-color .2s, background .2s;
}
.page-faq .faq-aside-nav a:hover {
  color: var(--primary);
  border-left-color: var(--primary);
  background: rgba(57, 255, 20, 0.06);
}
.page-faq .faq-aside-text {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: .88rem;
  line-height: 1.55;
}
.page-faq .faq-aside-contact .btn {
  width: 100%;
  justify-content: center;
  margin-top: .5rem;
}

.page-faq .faq-main {
  display: grid;
  gap: 1.1rem;
  align-content: start;
}
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  padding: .9rem;
  background: rgba(10, 25, 47, 0.8);
  border: 1px solid rgba(136, 146, 176, 0.16);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}
.page-faq .faq-filter .btn {
  font-size: .9rem;
}
.page-faq .faq-filter .btn.is-active,
.page-faq .faq-filter .btn.is-active:hover,
.page-faq .faq-filter .btn.is-active:focus {
  background: var(--primary);
  color: var(--bg-deep);
  border-color: var(--primary);
  box-shadow: var(--glow-green);
}
.page-faq .faq-panels {
  display: grid;
  gap: 1.75rem;
}
.page-faq .faq-group {
  scroll-margin-top: calc(var(--topbar-h) + 1rem);
  padding: 1.1rem;
  background: rgba(17, 34, 64, 0.42);
  border: 1px solid rgba(136, 146, 176, 0.16);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}
.page-faq [data-filter-item][hidden] {
  display: none;
}
.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.9rem;
  line-height: 1;
  text-transform: uppercase;
  transform: skewX(-5deg);
}
.page-faq .faq-group-title::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 1.05em;
  background: var(--primary);
}

.page-faq .faq-item {
  display: block;
  margin-bottom: .8rem;
  background: rgba(10, 25, 47, 0.65);
  border: 1px solid rgba(136, 146, 176, 0.18);
  border-left: 3px solid rgba(57, 255, 20, 0.45);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: border-color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
}
.page-faq .faq-item[open] {
  background: rgba(17, 34, 64, 0.9);
  border-left-color: var(--primary);
}
.page-faq .faq-item:hover {
  transform: translateX(4px);
}
.page-faq .faq-summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .95rem 1rem;
  cursor: pointer;
}
.page-faq .faq-summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.45rem;
  line-height: 1;
  color: var(--primary);
  transition: transform .3s var(--ease);
}
.page-faq .faq-item[open] .faq-summary::after {
  transform: rotate(45deg);
}
.page-faq .faq-ic {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 700;
  color: var(--primary);
  background: linear-gradient(135deg, rgba(57, 255, 20, 0.18), rgba(255, 107, 53, 0.08));
  border: 1px solid rgba(57, 255, 20, 0.3);
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 0 100%);
}
.page-faq .faq-item[data-filter-item="大屏"] .faq-ic {
  color: var(--accent);
  border-color: rgba(255, 107, 53, 0.45);
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.16), rgba(57, 255, 20, 0.06));
}
.page-faq .faq-q {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.4;
}
.page-faq .faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .35s var(--ease);
}
.page-faq .faq-item[open] .faq-answer {
  grid-template-rows: 1fr;
}
.page-faq .faq-answer-inner {
  overflow: hidden;
}
.page-faq .faq-answer-inner p {
  margin: 0;
  padding: .9rem 1rem 1rem;
  color: var(--text-sub);
  font-size: .95rem;
  line-height: 1.65;
  border-top: 1px dashed rgba(136, 146, 176, 0.22);
}
.page-faq .faq-answer-inner a {
  color: var(--primary);
}
.page-faq .faq-highlight {
  color: var(--primary);
  font-weight: 700;
  background: rgba(57, 255, 20, 0.08);
  padding: 0 .15em;
}

.page-faq .faq-screen-img {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  margin: 0 0 1.1rem;
  border: 1px solid rgba(255, 107, 53, 0.3);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.page-faq .faq-contact-list {
  display: grid;
  gap: .75rem;
  align-content: start;
}
.page-faq .faq-help-card {
  scroll-margin-top: calc(var(--topbar-h) + 1rem);
  background:
    linear-gradient(135deg, rgba(255, 107, 53, 0.16), rgba(57, 255, 20, 0.06)),
    rgba(17, 34, 64, 0.9);
  border: 1px solid rgba(255, 107, 53, 0.35);
  padding: 1.15rem;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}
.page-faq .faq-help-title {
  margin: 0 0 .7rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  text-transform: uppercase;
}
.page-faq .faq-help-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}
.page-faq .faq-help-list li {
  padding: .4rem 0;
  border-bottom: 1px dashed rgba(136, 146, 176, 0.22);
  color: var(--text-sub);
  font-size: .9rem;
}
.page-faq .faq-help-list li strong {
  color: var(--text-main);
}
.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

@media (min-width: 720px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-faq .faq-hero {
    padding: 2rem 2rem 1.75rem;
  }
  .page-faq .faq-group {
    padding: 1.5rem;
  }
}

@media (min-width: 980px) {
  .page-faq {
    padding: 2rem 2.5rem 4.5rem;
  }
  .page-faq .faq-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 2rem;
  }
  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--topbar-h) + 1.5rem);
    align-self: start;
  }
  .page-faq .faq-contact-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-faq .faq-facts {
    margin-top: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item[open],
  .page-faq .faq-summary::after,
  .page-faq .faq-answer {
    transition: none;
  }
}