.page-faq {
  background: var(--ink);
  color: var(--snow);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq .faq-crumbs {
  padding-top: 22px;
  padding-bottom: 4px;
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
  padding-top: 18px;
  padding-bottom: 48px;
}

.page-faq .faq-kicker {
  color: var(--ochre-lit);
  margin: 0 0 14px;
  letter-spacing: 0.14em;
}

.page-faq .faq-h1 {
  font-size: clamp(28px, 6.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 0 0 18px;
  color: var(--snow);
}

.page-faq .faq-lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate);
  max-width: 48ch;
}

.page-faq .faq-stamps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stamp {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.1em;
  padding: 9px 11px;
  border: 1px solid var(--line-soft);
  color: var(--snow);
  white-space: nowrap;
}

.page-faq .faq-stamp--ochre {
  background: var(--ochre);
  border-color: var(--ochre);
  color: var(--snow);
}

.page-faq .faq-stamp--turq {
  border-color: rgba(46, 140, 122, 0.55);
  color: var(--turquoise-lit);
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line);
}

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

.page-faq .faq-figure--wide {
  margin-top: 28px;
}

.page-faq .faq-section {
  padding: 48px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-section--paper {
  background: var(--paper);
  color: var(--ink-text);
  border-bottom: 1px solid var(--line-paper);
}

.page-faq .faq-section--night {
  background: var(--night);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-section--tail {
  padding: 40px 0 56px;
  border-bottom: 0;
}

.page-faq .sec-head {
  margin-bottom: 28px;
}

.page-faq .sec-num {
  margin: 0 0 10px;
  color: var(--ochre-lit);
  letter-spacing: 0.16em;
  font-size: 11px;
}

.page-faq .sec-title {
  margin: 0 0 12px;
  font-size: clamp(21px, 4.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--snow);
}

.page-faq .sec-note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
  max-width: 64ch;
}

.page-faq .faq-section--paper .sec-num {
  color: var(--ochre);
}

.page-faq .faq-section--paper .sec-title {
  color: var(--ink-text);
}

.page-faq .faq-section--paper .sec-note {
  color: #3C4148;
}

.page-faq .sec-head--night .sec-title {
  color: var(--snow);
}

.page-faq .sec-head--night .sec-note {
  color: #C3CED9;
}

/* 档案表 */
.page-faq .arch-list {
  border-top: 1px solid var(--line);
}

.page-faq .arch-row {
  border-bottom: 1px solid var(--line-soft);
  transition: border-color 0.3s ease;
}

.page-faq .arch-row > summary {
  display: grid;
  grid-template-columns: 1fr 22px;
  gap: 6px 10px;
  align-items: center;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
  color: var(--snow);
}

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

.page-faq .arch-row > summary:hover {
  background: var(--ink-panel);
}

.page-faq .arch-row[open] > summary {
  background: var(--ink-panel);
}

.page-faq .arch-row__key {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-faq .arch-row__val {
  font-size: 15px;
  line-height: 1.6;
  color: var(--snow);
}

.page-faq .arch-row__flag {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--brass);
  justify-self: end;
}

.page-faq .arch-row[open] .arch-row__flag {
  color: var(--ochre-lit);
}

.page-faq .arch-row__body {
  padding: 0 4px 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .arch-row__body a {
  color: var(--ochre-lit);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .ver-badge {
  display: inline-block;
  background: var(--ochre);
  color: var(--snow);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 5px 10px;
}

.page-faq .hist-list {
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
}

.page-faq .hist-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
}

.page-faq .hist-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--brass);
}

.page-faq .hist-list .mono {
  color: var(--brass);
  font-size: 12px;
  margin-right: 6px;
}

.page-faq .hist-note {
  margin: 0;
  font-size: 13.5px;
  color: var(--slate);
}

.page-faq .arch-row[data-lit] {
  opacity: 1;
}

.page-faq .arch-list[data-lit] {
  transition: border-color 0.35s ease;
  border-top-color: var(--line);
}

.page-faq .arch-list.is-lit {
  border-top-color: var(--brass);
}

/* 三步路径 */
.page-faq .steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .step {
  padding: 20px 18px 22px;
  background: var(--snow);
  border: 1px solid var(--line-paper);
  border-left: 3px solid var(--ochre);
}

.page-faq .step--2 {
  border-left-color: var(--turquoise);
}

.page-faq .step--3 {
  border-left-color: var(--brass);
}

.page-faq .step__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ochre);
}

.page-faq .step--2 .step__num {
  color: var(--turquoise);
}

.page-faq .step--3 .step__num {
  color: #8A6F0F;
}

.page-faq .step__title {
  margin: 12px 0 8px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-text);
}

.page-faq .step__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: #3C4148;
}

.page-faq .step__state {
  display: inline-block;
  margin: 16px 0 0;
  padding: 5px 9px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  background: rgba(201, 162, 39, 0.2);
  color: #6A5310;
  white-space: nowrap;
}

/* 输入对照 */
.page-faq .compare {
  display: grid;
  gap: 16px;
}

.page-faq .compare__col {
  padding: 18px 16px;
  background: var(--ink-panel);
  border: 1px solid var(--line-soft);
}

.page-faq .compare__col--good {
  border-top: 2px solid var(--turquoise);
}

.page-faq .compare__col--bad {
  border-top: 2px solid var(--ochre);
}

.page-faq .compare__head {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--turquoise-lit);
}

.page-faq .compare__col--bad .compare__head {
  color: var(--ochre-lit);
}

.page-faq .snippet {
  display: block;
  margin: 0 0 8px;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--snow);
  background: var(--ink-deep);
  border-left: 2px solid var(--turquoise);
  overflow-x: auto;
  white-space: pre;
}

.page-faq .snippet--bad {
  border-left-color: var(--ochre);
  color: #E7C9BF;
}

.page-faq .snippet-note {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-faq .snippet-note:last-child {
  margin-bottom: 0;
}

/* 分类树 */
.page-faq .tree-wrap {
  display: grid;
  gap: 24px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  transition: border-color 0.35s ease, transform 0.35s ease;
}

.page-faq .tree-wrap.is-lit {
  border-color: var(--brass);
  transform: translateY(-2px);
}

.page-faq .tree-svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-faq .tree-links path {
  stroke: rgba(201, 162, 39, 0.45);
  stroke-width: 1;
}

.page-faq .tree-node--l1 rect {
  fill: var(--ink-deep);
  stroke: var(--brass);
  stroke-width: 1;
}

.page-faq .tree-node--l2 rect {
  fill: rgba(10, 13, 18, 0.55);
  stroke: rgba(201, 162, 39, 0.28);
  stroke-width: 1;
}

.page-faq .tree-node text {
  font-family: var(--font-sans);
  font-size: 13px;
  fill: var(--snow);
}

.page-faq .tree-node--l2 text {
  fill: #C3CED9;
  font-size: 12.5px;
}

.page-faq .tree-notes {
  border-top: 1px solid rgba(201, 162, 39, 0.3);
  padding-top: 16px;
}

.page-faq .tree-notes__title {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--snow);
}

.page-faq .tree-notes__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .tree-notes__list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: #C3CED9;
}

.page-faq .tree-notes__list li:last-child {
  margin-bottom: 0;
}

.page-faq .tree-notes__list .mono {
  position: absolute;
  left: 0;
  top: 2px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--brass);
}

/* 问答 */
.page-faq .qa {
  display: grid;
  gap: 26px;
}

.page-faq .qa-group__title {
  margin: 0 0 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--brass);
}

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

.page-faq .qa-q {
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
  padding: 14px 2px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--snow);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-q::after {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brass);
}

.page-faq .qa-item[open] .qa-q::after {
  content: "－";
  color: var(--ochre-lit);
}

.page-faq .qa-item[open] .qa-q {
  color: var(--ochre-lit);
}

.page-faq .qa-q:hover {
  color: var(--ochre-lit);
}

.page-faq .qa-a {
  margin: 0 0 16px;
  padding: 2px 0 2px 14px;
  border-left: 2px solid var(--brass);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .qa-a a {
  color: var(--ochre-lit);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 排查 */
.page-faq .triage {
  display: grid;
  gap: 16px;
}

.page-faq .triage__col {
  padding: 18px 16px 20px;
  background: var(--snow);
  border: 1px solid var(--line-paper);
  border-top: 3px solid var(--ochre);
}

.page-faq .triage__col--b {
  border-top-color: var(--turquoise);
}

.page-faq .triage__col--c {
  border-top-color: #8A6F0F;
}

.page-faq .triage__title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-text);
}

.page-faq .triage ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: tri;
}

.page-faq .triage li {
  counter-increment: tri;
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.65;
  color: #3C4148;
}

.page-faq .triage li:last-child {
  margin-bottom: 0;
}

.page-faq .triage li::before {
  content: counter(tri, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ochre);
}

.page-faq .triage__col--b li::before {
  color: var(--turquoise);
}

.page-faq .triage__col--c li::before {
  color: #8A6F0F;
}

/* 联系条 */
.page-faq .help-contact {
  display: grid;
  gap: 18px;
  margin-top: 24px;
  padding: 20px 18px;
  background: var(--ink);
  border: 1px solid var(--line);
}

.page-faq .hc__k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--brass);
}

.page-faq .hc__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--snow);
  word-break: break-word;
}

.page-faq .hc__n {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--slate);
}

/* 接着看 */
.page-faq .xref-title {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--snow);
}

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

.page-faq .xref__link {
  display: inline-block;
  padding: 10px 14px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--snow);
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.page-faq .xref__link:hover,
.page-faq .xref__link:focus-visible {
  background: var(--ochre);
  border-color: var(--ochre);
  color: var(--snow);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 2px;
}

@media (min-width: 720px) {
  .page-faq .faq-section {
    padding: 60px 0;
  }

  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .triage {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .help-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px 24px;
  }

  .page-faq .arch-row > summary {
    grid-template-columns: 170px minmax(0, 1fr) 24px;
    gap: 14px;
    align-items: center;
    padding: 18px 10px;
  }

  .page-faq .arch-row__key {
    grid-column: auto;
  }

  .page-faq .arch-row__body {
    padding: 0 10px 20px 194px;
  }

  .page-faq .tree-wrap {
    padding: 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 48px;
    align-items: start;
    padding-top: 26px;
    padding-bottom: 64px;
  }

  .page-faq .compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .tree-wrap {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .tree-notes {
    border-top: 0;
    padding-top: 0;
    border-left: 1px solid rgba(201, 162, 39, 0.3);
    padding-left: 24px;
  }

  .page-faq .qa {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 36px;
    align-items: start;
  }

  .page-faq .qa-group--wide {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tree-wrap,
  .page-faq .arch-list,
  .page-faq .xref__link {
    transition: none;
  }

  .page-faq .tree-wrap.is-lit {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>