.page-faq {
  --faq-text: #C9D6E2;
  --faq-panel: rgba(14, 42, 46, 0.45);
  --faq-stroke-w: 1.5px;
  position: relative;
  background:
    radial-gradient(820px 420px at 6% -10%, rgba(255, 90, 31, 0.14), transparent 62%),
    radial-gradient(760px 400px at 98% 0%, rgba(0, 229, 255, 0.12), transparent 60%),
    var(--c-ink);
  color: var(--c-paper);
  overflow-x: clip;
}

.page-faq .faq-topbar {
  border-bottom: 1px solid var(--c-line);
  padding: 14px 0;
  position: relative;
  z-index: 2;
}

.page-faq .faq-topbar .breadcrumb {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 6vw, 64px) 0 clamp(30px, 5vw, 58px);
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--c-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--c-line) 1px, transparent 1px);
  background-size: 84px 84px;
  opacity: 0.4;
  -webkit-mask-image: radial-gradient(680px 380px at 28% 18%, #000 0%, transparent 78%);
  mask-image: radial-gradient(680px 380px at 28% 18%, #000 0%, transparent 78%);
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: end;
}

.page-faq .faq-hero-main {
  min-width: 0;
}

.page-faq .faq-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 8.6vw, 4.7rem);
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin: 0.28em 0 0;
}

.page-faq .faq-title span {
  display: block;
}

.page-faq .faq-title .stroke {
  color: transparent;
  -webkit-text-stroke: var(--faq-stroke-w) var(--c-cyan);
  text-stroke: var(--faq-stroke-w) var(--c-cyan);
}

.page-faq .faq-lead {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  max-width: 58ch;
  font-size: clamp(0.94rem, 1.5vw, 1.05rem);
  line-height: 1.8;
  color: var(--faq-text);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 28px);
}

/* ---------- 分组索引 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--c-line);
  background: linear-gradient(160deg, rgba(26, 18, 48, 0.78), rgba(11, 27, 43, 0.92));
  padding: clamp(16px, 2.4vw, 24px);
  min-width: 0;
}

.page-faq .faq-index-head {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

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

.page-faq .faq-index-list a {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--c-line);
  color: var(--c-paper);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-faq .faq-index-list li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--c-cyan);
  padding-left: 6px;
}

.page-faq .faq-index-list .num {
  color: var(--c-orange);
  font-size: 0.76rem;
}

.page-faq .faq-index-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-muted);
}

/* ---------- 分段标签 ---------- */
.page-faq .faq-tabs {
  position: sticky;
  top: 0;
  z-index: 6;
  background: rgba(11, 27, 43, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-tabs-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 0;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tabs-inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--c-line);
  color: var(--c-muted);
  text-decoration: none;
  font-size: 0.84rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-tab .num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--c-cyan);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  color: var(--c-paper);
  border-color: var(--c-cyan);
  background: rgba(0, 229, 255, 0.08);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: clamp(32px, 5vw, 62px) 0;
  border-bottom: 1px solid var(--c-line);
  scroll-margin-top: calc(var(--topbar-h) + 56px);
}

.page-faq .faq-group--violet {
  background: linear-gradient(180deg, rgba(26, 18, 48, 0.9), rgba(26, 18, 48, 0.2));
  border-top: 1px solid rgba(0, 229, 255, 0.16);
}

.page-faq .faq-group--deep {
  background: linear-gradient(180deg, rgba(14, 42, 46, 0.92), rgba(11, 27, 43, 0.35));
  border-top: 1px solid rgba(0, 229, 255, 0.12);
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
  margin-bottom: clamp(18px, 3vw, 32px);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  line-height: 1;
  color: var(--c-orange);
  padding-top: 0.18em;
}

.page-faq .faq-group-head h2 {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-faq .faq-group-head p {
  grid-column: 2;
  margin: 8px 0 0;
  max-width: 60ch;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-muted);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-paper);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--c-cyan);
}

.page-faq .faq-mark {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1;
  color: var(--c-cyan);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-mark::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-mark {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-ink);
}

.page-faq .faq-item[open] .faq-mark::before {
  content: "\2212";
}

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

.page-faq .faq-answer {
  padding: 0 0 22px 36px;
  max-width: 74ch;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--faq-text);
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
}

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

.page-faq .faq-answer a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-faq .faq-hint {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
  padding: 2px 9px;
  border: 1px solid rgba(198, 255, 0, 0.42);
  background: rgba(198, 255, 0, 0.1);
  color: var(--c-lime);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  line-height: 1.6;
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-cyan);
  padding-top: 0.42em;
}

.page-faq .faq-answer-cta {
  margin-top: 16px;
}

.page-faq .faq-member-cta {
  display: inline-block;
}

/* ---------- 图文混排 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
}

.page-faq .faq-split > .faq-list {
  min-width: 0;
}

.page-faq .faq-figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--c-line);
  background: var(--c-ink-2);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

.page-faq .faq-figure--wide {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-figure--wide img {
  aspect-ratio: 4 / 3;
}

/* ---------- 底部求助 ---------- */
.page-faq .faq-cta {
  padding: clamp(34px, 5vw, 64px) 0;
  border-top: 2px solid var(--c-orange);
  background: linear-gradient(120deg, rgba(255, 90, 31, 0.18), rgba(0, 229, 255, 0.07));
}

.page-faq .faq-cta-inner {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-cta-text h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.4vw, 2.2rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-cta-text p {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--faq-text);
}

.page-faq .faq-cta-text a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 窄屏 ---------- */
@media (max-width: 899px) {
  .page-faq .faq-tabs {
    top: var(--topbar-h);
  }

  .page-faq .faq-group {
    scroll-margin-top: calc(var(--topbar-h) + 54px);
  }

  .page-faq .faq-answer {
    padding-left: 0;
    padding-bottom: 20px;
  }

  .page-faq .faq-item summary {
    gap: 12px;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-title {
    font-size: clamp(1.85rem, 9.4vw, 2.6rem);
    --faq-stroke-w: 1.2px;
  }

  .page-faq .faq-steps li {
    grid-template-columns: 24px minmax(0, 1fr);
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 920px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr);
  }

  .page-faq .faq-group {
    scroll-margin-top: 72px;
  }

  .page-faq .faq-group-head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 4px 22px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.65fr) minmax(230px, 0.65fr);
    align-items: start;
  }

  .page-faq .faq-cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

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

@media (min-width: 1180px) {
  .page-faq .faq-group-head {
    padding-left: 0;
  }

  .page-faq .faq-figure {
    margin-top: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-list a,
  .page-faq .faq-tab,
  .page-faq .faq-item summary,
  .page-faq .faq-mark {
    transition: none;
  }
}
<<<END>>>