.page-faq {
  --faq-q-col: 5fr;
  --faq-a-col: 7fr;
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-faq .breadcrumb {
  padding-top: clamp(16px, 3vw, 26px);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(22px, 4vw, 48px);
  padding: clamp(20px, 4vw, 40px) 0 clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-hero-main .index-label {
  display: block;
  margin-bottom: 14px;
  color: var(--cyan);
}

.page-faq h1 {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(30px, 5.2vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--fog);
  max-width: 16em;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--link-quiet);
}

.page-faq .faq-lede--tight {
  margin-top: 10px;
  color: var(--muted);
}

.page-faq .faq-status {
  align-self: end;
  border: 1px solid var(--hair);
  background: var(--panel);
  padding: clamp(14px, 2vw, 20px);
  display: grid;
  gap: 10px;
}

.page-faq .status-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--hair);
}

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

.page-faq .status-key {
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .status-val {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--fog);
  text-align: right;
}

/* 场景速览 */
.page-faq .scene-nav {
  padding: clamp(26px, 4vw, 44px) 0 clamp(6px, 1vw, 12px);
}

.page-faq .scene-nav-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  margin-bottom: clamp(16px, 2vw, 22px);
}

.page-faq .scene-nav-head .index-label {
  color: var(--amber);
}

.page-faq .scene-nav-head h2 {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  color: var(--fog);
  letter-spacing: -0.005em;
}

.page-faq .scene-jump {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-faq .scene-jump a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas: "no name count";
  align-items: center;
  gap: 10px;
  height: 100%;
  padding: 14px 14px;
  background: var(--abyss);
  text-decoration: none;
  transition: background 0.12s ease, box-shadow 0.12s ease;
}

.page-faq .jump-no {
  grid-area: no;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .jump-name {
  grid-area: name;
  font-size: 14px;
  color: var(--fog);
}

.page-faq .jump-count {
  grid-area: count;
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.page-faq .scene-jump a:hover,
.page-faq .scene-jump a:focus-visible {
  background: var(--teal);
  box-shadow: inset 0 0 0 1px var(--cyan);
}

/* 主布局 */
.page-faq .faq-layout {
  padding-top: clamp(10px, 2vw, 18px);
}

.page-faq .scene-rail {
  display: none;
}

/* 场景区块 */
.page-faq .scene {
  padding: clamp(28px, 4.5vw, 52px) 0;
  border-top: 1px solid var(--hair);
}

.page-faq .scene:first-child {
  border-top: 0;
}

.page-faq .scene-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-faq .scene-no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .scene-head h2 {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-faq .scene-sub {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-faq .faq-figure {
  margin: 0 0 clamp(18px, 3vw, 30px);
}

/* 问答 */
.page-faq .qa-list {
  display: grid;
}

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

.page-faq .qa summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 10px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .q-index {
  font-size: 11.5px;
  line-height: 1.9;
  color: var(--dim);
  letter-spacing: 0.04em;
}

.page-faq .q-text {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--fog);
  transition: color 0.12s ease;
}

.page-faq .q-tri {
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-faq .qa summary:hover .q-text,
.page-faq .qa[open] summary .q-text {
  color: var(--cyan);
}

.page-faq .qa summary:hover .q-tri {
  border-color: var(--cyan);
}

.page-faq .qa[open] .q-tri {
  transform: rotate(225deg);
  border-color: var(--cyan);
}

.page-faq .a-body {
  padding: 0 0 20px;
  color: var(--link-quiet);
}

.page-faq .a-body p {
  margin: 0 0 10px;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.78;
}

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

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

.page-faq .a-body a:hover {
  color: var(--fog);
}

.page-faq .doc-code {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  border-bottom: 1px dashed var(--line-cyan);
  white-space: nowrap;
}

/* 步骤条 */
.page-faq .steps {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .steps li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.65;
}

.page-faq .step-no {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  background: var(--cyan);
  color: var(--abyss);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}

/* 表格 */
.page-faq .table-scroll {
  margin: 14px 0 4px;
  overflow-x: auto;
}

.page-faq .data-table caption {
  text-align: left;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding-bottom: 8px;
}

/* 联系区块 */
.page-faq .scene--resolve {
  border-top: 1px solid var(--line-amber);
}

.page-faq .scene--resolve .scene-no {
  color: var(--amber);
}

.page-faq .resolve-lede {
  margin: 0 0 clamp(16px, 2vw, 24px);
  max-width: 36em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--link-quiet);
}

.page-faq .resolve-grid {
  display: grid;
  gap: var(--gap);
}

.page-faq .resolve-grid .panel {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(16px, 2.4vw, 24px);
}

.page-faq .resolve-grid .index-label {
  color: var(--muted);
}

.page-faq .resolve-value {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .resolve-grid .panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--link-quiet);
}

.page-faq .resolve-foot {
  margin-top: clamp(16px, 2.4vw, 24px);
  padding-top: clamp(14px, 2vw, 20px);
  border-top: 1px solid var(--hair);
  display: grid;
  gap: 16px;
}

.page-faq .resolve-foot p {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .resolve-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 平板及以上 */
@media (min-width: 700px) {
  .page-faq .scene-jump {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 880px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .qa {
    display: grid;
    grid-template-columns: minmax(0, var(--faq-q-col)) minmax(0, var(--faq-a-col));
    column-gap: clamp(22px, 4vw, 56px);
  }

  .page-faq .qa > summary {
    grid-column: 1;
    padding-bottom: 20px;
  }

  .page-faq .qa > .a-body {
    grid-column: 2;
    padding-top: 16px;
    padding-bottom: 26px;
  }

  .page-faq .qa:nth-child(even) > .a-body {
    padding-top: 22px;
  }

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

  .page-faq .scene-jump a {
    grid-template-columns: 1fr;
    grid-template-areas:
      "no"
      "name"
      "count";
    align-content: start;
    gap: 6px;
    padding: 16px 14px;
  }

  .page-faq .jump-name {
    font-size: 14.5px;
    line-height: 1.45;
  }
}

/* 宽屏：右侧场景导轨 */
@media (min-width: 1080px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 128px;
    column-gap: clamp(24px, 3vw, 48px);
    align-items: start;
  }

  .page-faq .scene-rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h-sm) + 24px);
    padding-top: clamp(30px, 4.5vw, 52px);
  }

  .page-faq .rail-label {
    display: block;
    margin-bottom: 12px;
    padding-left: 11px;
    font-size: 10.5px;
    letter-spacing: 0.16em;
    color: var(--dim);
  }

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

  .page-faq .scene-rail a {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px;
    align-items: baseline;
    padding: 7px 0 7px 10px;
    border-left: 1px solid var(--hair);
    text-decoration: none;
    font-size: 12px;
    color: var(--muted);
    transition: color 0.12s ease, border-color 0.12s ease;
  }

  .page-faq .scene-rail a .mono {
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--dim);
  }

  .page-faq .scene-rail a:hover,
  .page-faq .scene-rail a:focus-visible {
    color: var(--cyan);
    border-left-color: var(--cyan);
  }

  .page-faq .scene-rail a:hover .mono,
  .page-faq .scene-rail a:focus-visible .mono {
    color: var(--cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa .q-tri,
  .page-faq .q-text,
  .page-faq .scene-jump a,
  .page-faq .scene-rail a {
    transition: none;
  }
}
<<<END>>>