.page-faq {
  --faq-gap: clamp(1rem, 2.4vw, 2rem);
  --faq-radius: 0;
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.page-faq .breadcrumb {
  padding-top: clamp(1rem, 2.5vw, 1.75rem);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .breadcrumb a {
  color: var(--signal-soft);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--signal);
}

.page-faq .breadcrumb-sep {
  margin: 0 0.5rem;
  color: var(--edge);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  margin-top: clamp(0.75rem, 2vw, 1.25rem);
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(1.25rem, 3vw, 2rem);
  background:
    linear-gradient(180deg, rgba(12, 30, 23, 0.92) 0%, rgba(7, 18, 14, 0.35) 100%),
    repeating-linear-gradient(90deg, transparent 0 45px, rgba(79, 255, 176, 0.055) 45px 46px);
  border-top: 2px solid var(--edge);
  border-bottom: 2px solid var(--edge);
}

.page-faq .faq-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: end;
}

.page-faq .kicker {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  color: var(--amber);
  margin-bottom: 0.75rem;
}

.page-faq .faq-hero h1 {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 7vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-hero .lede {
  max-width: 48ch;
  font-size: clamp(0.95rem, 1.6vw, 1.05rem);
  line-height: 1.8;
  color: var(--paper);
  opacity: 0.84;
  margin: 0 0 1.5rem;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-faq .faq-hero-actions .btn {
  border-width: 2px;
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-hero-stats {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.page-faq .faq-stat {
  border: 2px solid var(--edge);
  background: var(--card);
  box-shadow: var(--shadow-sm);
  padding: 0.7rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border-left: 5px solid var(--signal);
}

.page-faq .faq-stat .stat-label {
  font-family: var(--sans);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-stat-num {
  font-family: var(--mono);
  font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  font-weight: 700;
  color: var(--amber);
  letter-spacing: -0.02em;
}

/* ---------- 横幅 ---------- */
.page-faq .faq-banner {
  margin-top: clamp(1rem, 3vw, 1.75rem);
}

.page-faq .faq-banner figure {
  margin: 0;
  border: 2px solid var(--edge);
  box-shadow: var(--shadow);
  background: var(--ink-2);
  overflow: hidden;
}

.page-faq .faq-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1500 / 480;
  object-fit: cover;
}

/* ---------- 类目筛选条 ---------- */
.page-faq .faq-toolbar {
  position: sticky;
  top: 0;
  z-index: 30;
  margin-top: clamp(1rem, 3vw, 1.75rem);
  background: rgba(7, 18, 14, 0.95);
  border-top: 2px solid var(--edge);
  border-bottom: 2px solid var(--edge);
  backdrop-filter: blur(6px);
}

.page-faq .faq-toolbar-inner {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toolbar-label {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin: 0;
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.5rem;
}

.page-faq .chip {
  flex: 0 0 auto;
  border: 2px solid var(--edge);
  background: transparent;
  color: var(--signal-soft);
  font-family: var(--narrow);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.95rem;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: none;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.page-faq .chip:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.page-faq .chip[aria-pressed="true"] {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}

/* ---------- 双栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-index {
  border: 2px solid var(--edge);
  background: var(--ink-2);
  box-shadow: var(--shadow-sm);
  padding: 1rem;
}

.page-faq .faq-index-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--amber);
  margin: 0 0 0.75rem;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.2rem;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 0.55rem;
  border-left: 3px solid transparent;
  color: var(--paper);
  text-decoration: none;
  font-size: 0.94rem;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.page-faq .faq-index-num {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--amber);
  letter-spacing: 0.06em;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  border-left-color: var(--signal);
  background: var(--card);
  color: var(--signal);
}

.page-faq .faq-index-note {
  margin: 0.9rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--edge);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 类目 ---------- */
.page-faq .faq-main.is-refreshed {
  animation: faq-fade 0.15s ease;
}

@keyframes faq-fade {
  from { opacity: 0.35; }
  to { opacity: 1; }
}

.page-faq .faq-cat {
  margin-bottom: clamp(2rem, 5vw, 3.25rem);
  scroll-margin-top: 5.5rem;
}

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

.page-faq .faq-cat-head {
  border-left: 6px solid var(--signal);
  padding-left: clamp(0.75rem, 2vw, 1.25rem);
  margin-bottom: 1.15rem;
}

.page-faq .faq-cat-num {
  display: block;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--amber);
  margin-bottom: 0.3rem;
}

.page-faq .faq-cat-title {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  line-height: 1.25;
  margin: 0 0 0.5rem;
  color: var(--paper);
}

.page-faq .faq-cat-lede {
  margin: 0;
  max-width: 60ch;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-cat-head--split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: start;
}

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

.page-faq .faq-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-sm);
  background: var(--ink-2);
}

.page-faq .faq-media figcaption {
  margin-top: 0.45rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 0.65rem;
}

.page-faq .faq-item {
  border: 2px solid var(--edge);
  background: var(--card);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.page-faq .faq-item:hover {
  transform: translateY(-2px);
  border-color: var(--signal-soft);
}

.page-faq .faq-item[open] {
  border-color: var(--signal);
  box-shadow: 6px 6px 0 rgba(79, 255, 176, 0.16);
  transform: none;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--paper);
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-item[open] .faq-q {
  color: var(--signal-soft);
}

.page-faq .faq-q-mark {
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  margin-top: 0.4rem;
  border-right: 2px solid var(--signal);
  border-bottom: 2px solid var(--signal);
  transform: rotate(45deg);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-item[open] .faq-q-mark {
  transform: rotate(-135deg);
  border-color: var(--amber);
}

.page-faq .faq-a {
  padding: 0.85rem 1rem 1.1rem;
  border-top: 1px dashed var(--edge);
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.86;
}

.page-faq .faq-a p + p {
  margin-top: 0.6rem;
}

.page-faq .faq-a .price {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--amber);
  background: rgba(255, 176, 46, 0.1);
  padding: 0 0.2em;
  letter-spacing: -0.01em;
}

.page-faq .faq-a a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid var(--signal-soft);
}

.page-faq .faq-a a:hover {
  color: var(--signal-soft);
  border-bottom-color: var(--amber);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-help {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(1.25rem, 3.5vw, 2.25rem);
  border: 2px solid var(--signal);
  background: linear-gradient(135deg, var(--ink-2) 0%, var(--card) 100%);
  box-shadow: var(--shadow);
  scroll-margin-top: 5.5rem;
}

.page-faq .faq-help-head {
  border-left: 6px solid var(--amber);
  padding-left: clamp(0.75rem, 2vw, 1.25rem);
  margin-bottom: 1.35rem;
}

.page-faq .faq-help-head .faq-cat-title {
  color: var(--signal-soft);
}

.page-faq .faq-help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.page-faq .faq-help-item {
  border-left: 3px solid var(--amber);
  padding-left: 0.75rem;
}

.page-faq .faq-help-item .contact-key {
  margin: 0 0 0.2rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-help-item .contact-value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(0.9rem, 2vw, 1.02rem);
  color: var(--paper);
  word-break: break-word;
}

.page-faq .contact-note {
  margin: 1.15rem 0 0;
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.page-faq .faq-help-actions .btn {
  border-width: 2px;
  box-shadow: var(--shadow-sm);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }

  .page-faq .faq-hero-stats {
    grid-template-columns: 1fr;
    align-content: end;
  }

  .page-faq .faq-cat-head--split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 1.5rem;
  }

  .page-faq .faq-help-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.5rem;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 3rem);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 4.75rem;
  }

  .page-faq .faq-q {
    font-size: 1.02rem;
    padding: 1rem 1.15rem;
  }

  .page-faq .faq-a {
    padding: 0.95rem 1.15rem 1.25rem;
  }
}

@media (min-width: 1240px) {
  .page-faq .faq-layout {
    grid-template-columns: 270px minmax(0, 1fr);
  }

  .page-faq .faq-help-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-q-mark,
  .page-faq .chip,
  .page-faq .faq-index-link {
    transition: none;
  }

  .page-faq .faq-item:hover {
    transform: none;
  }

  .page-faq .faq-main.is-refreshed {
    animation: none;
  }
}
<<<END>>>