.page-faq {
  --faq-line: rgba(61, 245, 208, 0.18);
  --faq-well: rgba(11, 36, 27, 0.66);
  display: block;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4.6vw, 68px) 0 clamp(38px, 5.6vw, 78px);
  border-bottom: 2px solid var(--line-cyan);
  background:
    radial-gradient(120% 92% at 10% 0%, rgba(61, 245, 208, 0.12), transparent 58%),
    radial-gradient(86% 74% at 100% 6%, rgba(139, 92, 246, 0.11), transparent 62%);
}

.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--mist);
}

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

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
  align-items: start;
  margin-top: clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero-copy .eyebrow {
  margin: 0;
}

.page-faq .faq-hero h1 {
  margin: 0.36em 0 0.5em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.2vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--white);
}

.page-faq .faq-lede {
  max-width: 48ch;
  margin: 0;
  font-size: clamp(0.98rem, 1.5vw, 1.1rem);
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-quick {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(24px, 3.6vw, 42px) 0 0;
  padding: 0;
  list-style: none;
  border: 2px solid var(--line-cyan);
  background: var(--faq-line);
}

.page-faq .faq-quick li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px 16px;
  background: var(--faq-well);
}

.page-faq .faq-quick-num {
  font-family: var(--font-mono);
  font-size: clamp(1.32rem, 2.6vw, 1.85rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-faq .faq-quick li:nth-child(2) .faq-quick-num {
  color: var(--amber);
}

.page-faq .faq-quick-label {
  font-size: 0.78rem;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .faq-hero-figure {
  margin: 0;
  border: 2px solid var(--line-cyan);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 8;
  object-fit: cover;
}

/* ---------- 主体两列 ---------- */

.page-faq .faq-body {
  padding: clamp(40px, 6vw, 88px) 0 clamp(48px, 7vw, 100px);
  background-image:
    linear-gradient(rgba(61, 245, 208, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 245, 208, 0.045) 1px, transparent 1px);
  background-size: 8px 8px;
}

.page-faq .faq-shell {
  display: grid;
  gap: clamp(30px, 4.4vw, 60px);
  align-items: start;
}

.page-faq .faq-index {
  padding: 18px 16px 20px;
  border: 2px solid var(--line-cyan);
  background: var(--faq-well);
}

.page-faq .faq-index .eyebrow {
  margin: 0;
}

.page-faq .faq-index-list {
  display: grid;
  gap: 2px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index-link {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 10px 12px 10px 9px;
  border-left: 3px solid transparent;
  font-size: 0.94rem;
  line-height: 1.5;
  color: var(--white);
  text-decoration: none;
  transition: border-color var(--t-fast), background var(--t-fast), color var(--t-fast);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(61, 245, 208, 0.09);
  color: var(--cyan);
}

.page-faq .faq-index-num {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-faq .faq-index-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-cyan-soft);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-index-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
}

.page-faq .faq-index-note a:hover,
.page-faq .faq-index-note a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ---------- 问答组 ---------- */

.page-faq .faq-groups {
  display: grid;
  gap: clamp(38px, 5vw, 68px);
  min-width: 0;
}

.page-faq .faq-group {
  min-width: 0;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
  padding-bottom: 13px;
  border-bottom: 2px solid var(--cyan);
}

.page-faq .faq-group-num {
  flex: 0 0 auto;
  padding: 3px 9px 4px;
  border: 1px solid rgba(245, 179, 60, 0.55);
  background: rgba(245, 179, 60, 0.12);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.2rem, 2.6vw, 1.72rem);
  line-height: 1.3;
  letter-spacing: -0.008em;
  color: var(--white);
}

.page-faq .faq-item {
  border: 0;
  border-bottom: 1px solid var(--faq-line);
  background: transparent;
  box-shadow: none;
}

.page-faq .faq-q {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-trigger {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 20px 2px 20px 0;
  border: 0;
  border-left: 2px solid transparent;
  background: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(0.99rem, 1.7vw, 1.11rem);
  line-height: 1.58;
  text-align: left;
  color: var(--white);
  cursor: pointer;
  transition: color var(--t-mid), border-color var(--t-mid), padding-left var(--t-mid), background var(--t-mid);
}

.page-faq .faq-trigger:hover {
  color: var(--cyan);
  background: rgba(61, 245, 208, 0.05);
}

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

.page-faq .faq-trigger[aria-expanded="true"] {
  padding-left: 16px;
  border-left-color: var(--cyan);
  color: var(--cyan);
  background: rgba(61, 245, 208, 0.06);
}

.page-faq .faq-q-text {
  min-width: 0;
}

.page-faq .faq-sign {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 4px;
  border: 1px solid var(--line-cyan);
  background: rgba(61, 245, 208, 0.07);
  color: var(--cyan);
  transition: transform var(--t-mid), background var(--t-mid), border-color var(--t-mid);
}

.page-faq .faq-sign::before,
.page-faq .faq-sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: currentColor;
}

.page-faq .faq-sign::before {
  width: 10px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-sign::after {
  width: 2px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-trigger[aria-expanded="true"] .faq-sign {
  transform: rotate(45deg);
  border-color: var(--cyan);
  background: rgba(61, 245, 208, 0.2);
}

.page-faq .faq-a {
  padding: 0 2px 22px 0;
}

.page-faq .faq-a p {
  max-width: 62ch;
  margin: 0;
  padding-left: 18px;
  border-left: 1px solid var(--line-cyan-soft);
  font-size: 0.955rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-side-figure {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  border: 2px solid var(--line-cyan);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-side-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

/* ---------- 收束 ---------- */

.page-faq .faq-cta {
  padding: clamp(36px, 5.4vw, 68px) 0;
  border-top: 2px solid var(--ink-deep);
  background: var(--paper);
  color: var(--ink-deep);
}

.page-faq .faq-cta-inner {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
  align-items: center;
}

.page-faq .faq-cta .eyebrow {
  margin: 0 0 10px;
  color: var(--ink-deep);
  border-color: rgba(5, 20, 15, 0.45);
}

.page-faq .faq-cta h2 {
  margin: 0 0 0.5em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.35rem, 3vw, 2.05rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
}

.page-faq .faq-cta-copy p {
  max-width: 58ch;
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.8;
  color: #3a4b43;
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-cta-inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.9fr);
  }

  .page-faq .faq-cta-actions {
    justify-content: flex-end;
  }

  .page-faq .faq-a {
    padding-left: 96px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }

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

@media (min-width: 1020px) {
  .page-faq .faq-shell {
    grid-template-columns: 278px minmax(0, 1fr);
  }

  .page-faq .faq-index {
    position: sticky;
    top: clamp(22px, 4vh, 48px);
  }
}

@media (max-width: 480px) {
  .page-faq .faq-quick {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-group-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-link,
  .page-faq .faq-trigger,
  .page-faq .faq-sign {
    transition: none;
  }
}
<<<END>>>