.page-faq {
  background: linear-gradient(180deg, var(--c-ink) 0%, #0B1D2E 58%, var(--c-ink) 100%);
  color: var(--c-paper);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-faq .container {
  max-width: var(--w-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-block: clamp(24px, 4vw, 40px) clamp(36px, 6vw, 64px);
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-hero-index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--c-gold);
  margin: 0 0 14px;
  padding-left: 14px;
  position: relative;
}

.page-faq .faq-hero-index::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  background: var(--c-gold);
  transform: rotate(45deg);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(28px, 5.2vw, 42px);
  line-height: 1.32;
  margin: 0 0 clamp(16px, 2.4vw, 22px);
  max-width: 22ch;
}

.page-faq .faq-hero-lede {
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-mist);
  margin: 0 0 clamp(20px, 3vw, 28px);
  max-width: 60ch;
}

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

.page-faq .faq-hero-side {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-mist);
  border: 1px solid var(--line-mist);
}

.page-faq .faq-stat {
  background: var(--c-indigo);
  padding: clamp(14px, 2vw, 20px);
  min-width: 0;
}

.page-faq .faq-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.05;
  color: var(--c-gold);
}

.page-faq .faq-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-mist);
}

.page-faq .faq-hero-figure {
  margin: clamp(28px, 4.5vw, 48px) 0 0;
}

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

.page-faq .figure-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-celadon);
}

/* ---------- 通用章节 ---------- */

.page-faq .section {
  padding-block: clamp(36px, 6vw, 68px);
}

.page-faq .section--tight {
  padding-block: clamp(28px, 4.5vw, 52px);
}

.page-faq .section-title {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.4;
  margin: 10px 0 12px;
}

.page-faq .section-lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-mist);
  max-width: 62ch;
  margin: 0;
}

/* ---------- 01 索引大类 ---------- */

.page-faq .faq-layout {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  margin-top: clamp(24px, 3.4vw, 36px);
}

.page-faq .faq-tree {
  border-top: 1px solid var(--line-celadon);
  padding-top: 14px;
}

.page-faq .faq-tree-head {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-celadon);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.page-faq .faq-tree-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 6px;
}

.page-faq .faq-tree-list > li {
  flex: 0 0 auto;
}

.page-faq .faq-tree-link {
  display: grid;
  grid-template-columns: auto auto auto;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  text-decoration: none;
  color: var(--c-mist);
  background: var(--c-indigo);
  border-left: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease-out),
              border-color var(--t-fast) var(--ease-out),
              background-color var(--t-fast) var(--ease-out);
}

.page-faq .faq-tree-link:hover,
.page-faq .faq-tree-link:focus-visible {
  color: var(--c-paper);
  border-left-color: var(--c-gold);
}

.page-faq .faq-tree-link[data-current] {
  color: var(--c-paper);
  border-left-color: var(--c-celadon);
  background: rgba(111, 176, 162, 0.1);
}

.page-faq .faq-tree-idx {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--c-gold);
}

.page-faq .faq-tree-link[data-current] .faq-tree-idx {
  color: var(--c-celadon);
}

.page-faq .faq-tree-name {
  font-size: 14px;
}

.page-faq .faq-tree-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-mist);
  opacity: 0.75;
}

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

.page-faq .faq-group {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  padding: clamp(20px, 3vw, 32px);
  scroll-margin-top: 96px;
}

.page-faq .faq-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-gold);
}

.page-faq .faq-group-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(19px, 2.4vw, 22px);
  letter-spacing: -0.01em;
  margin: 0;
}

.page-faq .faq-group-meta {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-mist);
}

.page-faq .faq-group-desc {
  margin: 14px 0 6px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-mist);
  max-width: 62ch;
}

.page-faq .faq-items {
  margin-top: 6px;
}

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

.page-faq .faq-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-item > summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0 15px 24px;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-item > summary::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 22px;
  width: 7px;
  height: 7px;
  background: var(--c-gold);
  transition: transform var(--t-fast) var(--ease-out),
              background-color var(--t-fast) var(--ease-out);
}

.page-faq .faq-item[open] > summary::before {
  transform: rotate(45deg);
  background: var(--c-coral);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 1px solid var(--c-gold);
  outline-offset: 4px;
}

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.75;
  color: var(--c-paper);
}

.page-faq .faq-item[open] .faq-q {
  color: var(--c-gold-soft);
}

.page-faq .faq-code {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-celadon);
}

.page-faq .faq-a {
  padding: 0 0 18px 24px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-mist);
}

.page-faq .faq-a::before {
  content: "";
  display: block;
  height: 1px;
  margin-bottom: 12px;
  background: repeating-linear-gradient(
    to right,
    var(--line-celadon) 0 6px,
    transparent 6px 14px
  );
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 62ch;
}

.page-faq .faq-a-link {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 1px;
  transition: color var(--t-fast) var(--ease-out),
              border-color var(--t-fast) var(--ease-out);
}

.page-faq .faq-a-link:hover,
.page-faq .faq-a-link:focus-visible {
  color: var(--c-coral);
  border-color: var(--line-coral);
}

/* ---------- 02 高频问题速查 ---------- */

.page-faq .faq-quick {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line-mist);
}

.page-faq .faq-quick-item {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-mist);
  transition: border-color var(--t-fast) var(--ease-out);
}

.page-faq .faq-quick-item:hover {
  border-bottom-color: var(--line-gold);
}

.page-faq .faq-quick-code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-gold);
}

.page-faq .faq-quick-q {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--c-paper);
}

.page-faq .faq-quick-a {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mist);
}

/* ---------- 全宽换气条 ---------- */

.page-faq .faq-band {
  position: relative;
  height: 56px;
  margin-block: clamp(8px, 2vw, 20px);
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(200, 164, 74, 0.12) 18%,
    rgba(228, 112, 63, 0.16) 50%,
    rgba(200, 164, 74, 0.12) 82%,
    transparent 100%
  );
  overflow: hidden;
}

.page-faq .faq-band-track {
  position: absolute;
  left: var(--pad-x);
  right: var(--pad-x);
  top: 50%;
  height: 1px;
  background: repeating-linear-gradient(
    to right,
    var(--line-gold-strong) 0 3px,
    transparent 3px 20px
  );
}

.page-faq .faq-band::after {
  content: "";
  position: absolute;
  right: var(--pad-x);
  top: calc(50% - 5px);
  width: 10px;
  height: 10px;
  background: var(--c-coral);
  transform: rotate(45deg);
}

/* ---------- 03 规则查询通道 ---------- */

.page-faq .faq-query-grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 36px);
  margin-top: clamp(22px, 3.2vw, 34px);
}

.page-faq .faq-query-copy {
  min-width: 0;
  display: grid;
  gap: clamp(14px, 2vw, 18px);
  align-content: start;
}

.page-faq .faq-demo {
  background: var(--c-indigo);
  border-left: 2px solid var(--c-gold);
  padding: clamp(16px, 2.2vw, 22px);
}

.page-faq .faq-demo--plain {
  border-left-color: var(--line-celadon);
}

.page-faq .faq-demo-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-celadon);
  text-transform: uppercase;
}

.page-faq .faq-demo-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .faq-key {
  background: rgba(200, 164, 74, 0.14);
  border: 1px solid var(--line-gold);
  padding: 4px 10px;
  color: var(--c-gold-soft);
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-faq .faq-arrow {
  color: var(--c-coral);
  font-size: 14px;
}

.page-faq .faq-hit {
  color: var(--c-paper);
  font-size: 13px;
  word-break: break-word;
}

.page-faq .faq-demo-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-faq .faq-query-figure {
  margin: 0;
}

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

/* ---------- 04 老用户回查 ---------- */

.page-faq .faq-timeline {
  list-style: none;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--line-celadon);
  display: grid;
  gap: clamp(18px, 3vw, 26px);
}

.page-faq .faq-tl-item {
  position: relative;
}

.page-faq .faq-tl-item::after {
  content: "";
  position: absolute;
  left: -27px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--c-celadon);
  transform: rotate(45deg);
}

.page-faq .faq-tl-item--current::after {
  background: var(--c-coral);
}

.page-faq .faq-tl-ver {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-paper);
}

.page-faq .faq-tl-item--current .faq-tl-ver {
  color: var(--c-gold);
}

.page-faq .faq-tl-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-mist);
  max-width: 58ch;
}

.page-faq .faq-record-tail {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-mist);
  max-width: 62ch;
}

.page-faq .faq-record-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(16px, 2.4vw, 22px);
}

/* ---------- 05 文档与版本对应 ---------- */

.page-faq .faq-version-list {
  margin: clamp(22px, 3.2vw, 32px) 0 0;
  border-top: 1px solid var(--line-gold);
}

.page-faq .faq-version-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-mist);
}

.page-faq .faq-version-row dt {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-gold);
}

.page-faq .faq-version-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-mist);
  max-width: 68ch;
}

.page-faq .faq-version-tail {
  margin: 18px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--line-coral);
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-mist);
  max-width: 62ch;
}

/* ---------- 06 继续追问 ---------- */

.page-faq .faq-help-grid {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
  margin-top: clamp(22px, 3.2vw, 32px);
}

.page-faq .faq-help-card {
  padding: clamp(20px, 3vw, 30px);
}

.page-faq .faq-help-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-gold);
}

.page-faq .faq-help-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-mist);
  max-width: 56ch;
}

.page-faq .faq-help-contact {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help-contact li {
  display: grid;
  gap: 3px;
}

.page-faq .faq-help-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-celadon);
}

.page-faq .faq-help-value {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--c-paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 2px;
  justify-self: start;
  transition: color var(--t-fast) var(--ease-out),
              border-color var(--t-fast) var(--ease-out);
}

.page-faq .faq-help-value:hover,
.page-faq .faq-help-value:focus-visible {
  color: var(--c-gold-soft);
  border-color: var(--c-gold);
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 24px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-quick-item {
    grid-template-columns: 76px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 18px;
  }

  .page-faq .faq-quick-a {
    grid-column: 2;
  }
}

@media (min-width: 768px) {
  .page-faq .faq-quick-item {
    grid-template-columns: 76px minmax(0, 1.05fr) minmax(0, 1.15fr);
  }

  .page-faq .faq-quick-a {
    grid-column: 3;
  }

  .page-faq .faq-version-row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 4px 24px;
    align-items: baseline;
  }

  .page-faq .faq-timeline {
    border-left: 0;
    padding-left: 0;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(18px, 3vw, 32px);
  }

  .page-faq .faq-tl-item {
    padding-top: 26px;
  }

  .page-faq .faq-tl-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 1px;
    background: var(--line-celadon);
  }

  .page-faq .faq-tl-item::after {
    left: 0;
    top: -4px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.7fr);
  }

  .page-faq .faq-query-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.85fr);
    align-items: start;
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
    gap: clamp(26px, 3vw, 40px);
  }

  .page-faq .faq-tree {
    position: sticky;
    top: 104px;
    border-top: 0;
    border-left: 1px solid var(--line-gold);
    padding-top: 0;
    padding-left: 18px;
  }

  .page-faq .faq-tree-list {
    flex-direction: column;
    overflow-x: visible;
    gap: 4px;
    padding-bottom: 0;
  }

  .page-faq .faq-tree-link {
    width: 100%;
    grid-template-columns: auto minmax(0, 1fr) auto;
    white-space: normal;
    background: transparent;
    padding: 10px 12px 10px 10px;
  }

  .page-faq .faq-tree-link[data-current] {
    background: rgba(111, 176, 162, 0.12);
  }
}
<<<END>>>