.page-faq {
  --faq-quiet: rgba(233, 238, 250, 0.74);
  --faq-head-gap: clamp(18px, 3vw, 30px);
  --faq-gap-lg: clamp(38px, 7vw, 84px);
  display: block;
  padding-bottom: clamp(48px, 9vw, 110px);
}

.page-faq .shell {
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px) 0 clamp(26px, 4vw, 44px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -10%;
  width: min(620px, 78%);
  height: min(440px, 88%);
  background: linear-gradient(126deg, rgba(123, 92, 255, 0.22), rgba(52, 229, 212, 0.08) 58%, rgba(6, 10, 23, 0) 100%);
  clip-path: polygon(24% 0, 100% 0, 76% 100%, 0 100%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(16px, 2.5vw, 26px);
}

.page-faq .faq-hero-main,
.page-faq .faq-status {
  position: relative;
  z-index: 1;
}

.page-faq .faq-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 5.4vw, 4.2rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-lede {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 2.6vw, 16.5px);
  line-height: 1.85;
  color: var(--faq-quiet);
}

.page-faq .faq-status {
  padding: 18px 20px 16px;
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  background: linear-gradient(158deg, rgba(26, 36, 64, 0.7), rgba(12, 20, 43, 0.55));
  backdrop-filter: blur(8px);
}

.page-faq .faq-status-title {
  margin: 0 0 12px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-status-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-status-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 9px;
  border-bottom: 1px solid rgba(38, 55, 95, 0.72);
}

.page-faq .faq-status-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-status-key {
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-status-val {
  font-family: var(--font-mono);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--paper);
  text-shadow: 0 0 12px rgba(52, 229, 212, 0.3);
  white-space: nowrap;
}

/* ---------- 索引刻度盘 ---------- */
.page-faq .faq-index {
  margin-top: clamp(30px, 5vw, 52px);
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}

.page-faq .faq-index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  background: var(--ink-line);
  overflow: hidden;
}

.page-faq .faq-index-link {
  display: grid;
  gap: 6px;
  padding: 16px 14px 18px;
  background: linear-gradient(180deg, rgba(12, 20, 43, 0.94), rgba(6, 10, 23, 0.94));
  text-decoration: none;
  color: var(--text);
  transition: background var(--t-fast) ease, box-shadow var(--t-fast) ease;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: linear-gradient(180deg, rgba(26, 36, 64, 0.95), rgba(12, 20, 43, 0.95));
  box-shadow: inset 0 0 0 1px rgba(52, 229, 212, 0.42);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-index-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-index-desc {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  position: relative;
  padding-top: var(--faq-gap-lg);
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-section-head {
  display: grid;
  gap: 10px;
  margin-bottom: var(--faq-head-gap);
}

.page-faq .faq-section-head::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: 6px;
  background: linear-gradient(90deg, var(--cyan), rgba(52, 229, 212, 0.14) 42%, rgba(38, 55, 95, 0) 100%);
  opacity: 0.6;
}

.page-faq .section-mark {
  display: block;
  margin-bottom: 4px;
}

.page-faq .faq-section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-faq .faq-section-note {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-qa-list {
  display: grid;
  border-top: 1px solid var(--ink-line);
}

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

.page-faq .faq-qa > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 17px 2px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-ui);
  font-size: clamp(15px, 2.6vw, 16.5px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--text);
  transition: color var(--t-fast) ease;
}

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

.page-faq .faq-qa > summary::marker {
  content: "";
}

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

.page-faq .faq-qa-mark {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
}

.page-faq .faq-qa-mark::before,
.page-faq .faq-qa-mark::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 1px;
  background: var(--cyan);
  opacity: 0.85;
  transition: transform var(--t-mid) ease, opacity var(--t-mid) ease;
}

.page-faq .faq-qa-mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-qa[open] .faq-qa-mark::after {
  transform: rotate(0deg);
  opacity: 0.4;
}

.page-faq .faq-qa-body {
  display: grid;
  gap: 12px;
  padding: 2px 2px 22px;
  animation: faq-reveal var(--t-mid) ease both;
}

.page-faq .faq-qa-main p {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--faq-quiet);
}

.page-faq .faq-qa-main a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 229, 212, 0.45);
}

.page-faq .faq-qa-main a:hover {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-qa-note {
  margin: 0;
  padding-left: 12px;
  border-left: 1px solid var(--ink-line);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--dim);
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 内嵌块（名词表） ---------- */
.page-faq .faq-block {
  margin-top: clamp(30px, 5vw, 56px);
  padding-top: clamp(20px, 3vw, 30px);
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-block-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-block-note {
  margin: 0 0 clamp(18px, 3vw, 26px);
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-glossary {
  margin: 0;
  display: grid;
  border-top: 1px solid var(--ink-line);
}

.page-faq .faq-term {
  display: grid;
  gap: 4px;
  padding: 14px 2px;
  border-bottom: 1px solid rgba(38, 55, 95, 0.72);
}

.page-faq .faq-term dt {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .faq-term dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-quiet);
}

.page-faq .faq-ver {
  flex: none;
  padding: 2px 7px;
  border: 1px solid rgba(52, 229, 212, 0.42);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  box-shadow: inset 0 0 10px rgba(52, 229, 212, 0.16);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3.4vw, 32px);
}

.page-faq .faq-figure .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure .media-frame-caption {
  margin-top: 8px;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-signoff {
  margin-top: clamp(30px, 5vw, 52px);
  padding: clamp(20px, 3.4vw, 30px);
  border: 1px solid var(--ink-line);
  border-left: 2px solid var(--violet);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(26, 36, 64, 0.62), rgba(6, 10, 23, 0.42));
}

.page-faq .faq-signoff-title {
  margin: 0 0 10px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet);
}

.page-faq .faq-signoff-text {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-quiet);
}

.page-faq .faq-signoff-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-index-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-faq .faq-qa-body {
    grid-template-columns: minmax(0, 1fr) 218px;
    gap: 28px;
    padding-right: 24px;
  }

  .page-faq .faq-term {
    grid-template-columns: minmax(120px, 208px) minmax(0, 1fr);
    align-items: baseline;
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(240px, 0.85fr);
    align-items: end;
  }

  .page-faq .faq-index-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-qa-body {
    animation: none;
  }

  .page-faq .faq-qa-mark::before,
  .page-faq .faq-qa-mark::after {
    transition: none;
  }
}
<<<END>>>