.page-faq {
  --faq-gap: clamp(36px, 5vw, 66px);
  --faq-rail: 196px;
  display: block;
}

/* ---------- 刊头 ---------- */
.page-faq .faq-masthead {
  position: relative;
  display: grid;
  gap: 16px;
  padding: clamp(28px, 4.5vw, 54px) 0 clamp(30px, 5vw, 62px);
  border-bottom: var(--line);
  overflow: hidden;
}

.page-faq .faq-masthead::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: clamp(84px, 22vw, 240px);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

.page-faq .faq-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.6vw, 66px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--text);
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.25vw, 17px);
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .faq-meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 8px 0 0;
  padding: 0;
}

.page-faq .faq-meta li {
  display: flex;
  align-items: baseline;
  gap: 9px;
}

.page-faq .faq-meta-k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

.page-faq .faq-meta-v {
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

@media (min-width: 900px) {
  .page-faq .faq-title {
    max-width: 17ch;
  }
}

/* ---------- 章节通用 ---------- */
.page-faq .section {
  padding-top: var(--faq-gap);
  padding-bottom: var(--faq-gap);
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index {
  border-bottom: var(--line);
}

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

.page-faq .faq-index-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 38px);
  align-items: start;
}

@media (min-width: 920px) {
  .page-faq .faq-index-layout {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  }
}

.page-faq .faq-index-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--rule);
  border: var(--line);
}

@media (min-width: 560px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .index-panel:last-child {
    grid-column: 1 / -1;
  }
}

.page-faq .index-panel {
  background: var(--ink);
  padding: 20px 20px 22px;
  display: grid;
  gap: 10px;
  align-content: start;
  border-left: 2px solid transparent;
  transition: border-color .2s ease, background-color .2s ease;
}

.page-faq .index-panel:hover,
.page-faq .index-panel:focus-within {
  background: var(--layer);
  border-left-color: var(--cyan);
}

.page-faq .index-panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 9px;
  border-bottom: var(--line);
}

.page-faq .index-panel-num {
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.1em;
}

.page-faq .index-count {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.page-faq .index-panel-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.page-faq .index-panel-title a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.page-faq .index-panel-title a:hover,
.page-faq .index-panel-title a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--rule);
}

.page-faq .index-panel-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-faq .faq-index-figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-index-media {
  aspect-ratio: 10 / 7;
  overflow: hidden;
  border: var(--line);
  background: var(--layer);
}

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

/* ---------- 主体：问答 + 术语栏 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 1040px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail);
    column-gap: clamp(32px, 4vw, 68px);
  }
}

.page-faq .faq-block {
  border-top: var(--line);
  scroll-margin-top: 96px;
}

.page-faq .faq-body > .faq-block:first-child {
  border-top: none;
  padding-top: clamp(28px, 4vw, 48px);
}

.page-faq .faq-block:target .faq-block-title {
  color: var(--cyan-soft);
}

.page-faq .faq-block-head {
  display: grid;
  gap: 9px;
  margin-bottom: clamp(18px, 2.6vw, 30px);
  max-width: 70ch;
}

.page-faq .faq-block-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-block-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.1vw, 36px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--text);
  transition: color .2s ease;
}

.page-faq .faq-block-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-dim);
  max-width: 64ch;
}

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

.page-faq .faq-block-desc a:hover,
.page-faq .faq-block-desc a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 8px;
}

.page-faq .qa {
  background: var(--layer);
  border: var(--line);
  border-left: 2px solid var(--rule);
  transition: border-color .2s ease, background-color .2s ease;
}

.page-faq .qa:hover {
  border-left-color: var(--cyan-soft);
}

.page-faq .qa[open] {
  border-left-color: var(--cyan);
  background: #0B1015;
}

.page-faq .qa:target {
  border-left-color: var(--magenta);
}

.page-faq .qa-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: -0.005em;
  color: var(--text);
}

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

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

.page-faq .qa-q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.45;
  color: var(--cyan);
  transition: color .2s ease;
}

.page-faq .qa[open] .qa-q::after {
  content: "\2212";
}

.page-faq .qa-q:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -1px;
}

.page-faq .qa-num {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mute);
  padding-top: 4px;
  transition: color .2s ease;
}

.page-faq .qa[open] .qa-num {
  color: var(--cyan);
}

.page-faq .qa-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa-a {
  margin: 0 18px;
  padding: 14px 0 18px;
  border-top: var(--line);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .qa-a p {
  margin: 0;
  max-width: 66ch;
}

.page-faq .qa-a p + p,
.page-faq .qa-a p + svg,
.page-faq .qa-a svg + p {
  margin-top: 14px;
}

.page-faq .qa-a strong {
  color: var(--text);
  font-weight: 600;
}

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

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

/* ---------- 版本号三段示意图 ---------- */
.page-faq .ver-diagram {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  padding: 8px;
  box-sizing: border-box;
  background: var(--ink);
  border: var(--line);
}

.page-faq .vd-box {
  fill: none;
  stroke: var(--rule);
  stroke-width: 1.5;
}

.page-faq .vd-box--live {
  stroke: var(--cyan);
}

.page-faq .vd-num {
  fill: var(--text);
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-faq .vd-num--live {
  fill: var(--cyan);
}

.page-faq .vd-label {
  fill: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

/* ---------- 配置对照表 ---------- */
.page-faq .faq-table-wrap {
  margin-top: clamp(20px, 2.6vw, 30px);
  border: var(--line);
}

.page-faq .data-table caption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .tier {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.page-faq .tier::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--mute);
}

.page-faq .tier--main::before {
  background: var(--cyan);
}

.page-faq .tier--high::before {
  background: var(--cyan-soft);
}

.page-faq .faq-table-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mute);
  max-width: 70ch;
}

.page-faq .faq-config-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-config-media {
  border: var(--line);
  background: var(--layer);
}

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

/* ---------- 支持渠道 ---------- */
.page-faq .faq-contact {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: var(--line);
}

@media (min-width: 620px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-contact-item {
  background: var(--ink);
  padding: 16px 18px;
  display: grid;
  gap: 7px;
  align-content: start;
}

.page-faq .faq-contact-item dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mute);
}

.page-faq .faq-contact-item dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  word-break: break-word;
}

.page-faq .faq-contact-item dd.num {
  font-size: 13.5px;
  letter-spacing: 0.03em;
  color: var(--cyan-soft);
}

/* ---------- 反馈清单 ---------- */
.page-faq .faq-checklist {
  list-style: none;
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: var(--line);
}

@media (min-width: 720px) {
  .page-faq .faq-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-check-item {
  background: var(--ink);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  transition: background-color .2s ease;
}

.page-faq .faq-check-item:hover {
  background: var(--layer);
}

.page-faq .ck-num {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .ck-body {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.page-faq .ck-body strong {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.005em;
}

.page-faq .ck-body span {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

/* ---------- 术语侧栏 ---------- */
.page-faq .faq-rail {
  padding-top: clamp(24px, 3vw, 40px);
  padding-bottom: clamp(30px, 4vw, 54px);
  border-top: var(--line);
}

@media (min-width: 1040px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    align-self: start;
    padding-top: var(--faq-gap);
    padding-bottom: var(--faq-gap);
    padding-left: clamp(18px, 2vw, 26px);
    border-top: none;
    border-left: var(--line);
  }
}

.page-faq .rail-title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--text-dim);
}

.page-faq .rail-terms {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-faq .rail-term {
  padding-left: 10px;
  border-left: 2px solid var(--rule);
  transition: border-color .18s ease;
}

.page-faq .rail-term:hover {
  border-left-color: var(--cyan);
}

.page-faq .rail-term dt {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
  letter-spacing: -0.005em;
}

.page-faq .rail-term dd {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-dim);
}

@media (min-width: 1040px) {
  .page-faq .rail-terms {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- 降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa-q::after,
  .page-faq .qa-num,
  .page-faq .index-panel,
  .page-faq .faq-check-item,
  .page-faq .faq-block-title,
  .page-faq .rail-term,
  .page-faq .index-panel-title a {
    transition: none;
  }
}
<<<END>>>