.page-faq {
  --faq-panel-dark: #061220;
  --faq-line-soft: rgba(242, 232, 213, .3);
  background: var(--ink-night);
  color: var(--chalk-white);
  padding: 0 var(--gutter) 72px;
  overflow-x: clip;
}

.page-faq .crumbs,
.page-faq__hero,
.page-faq .filter-bar,
.page-faq__filter-note,
.page-faq__section,
.page-faq__qa-zone,
.page-faq__band-figure {
  max-width: var(--shell);
  margin-inline: auto;
}

.page-faq .crumbs {
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist-blue);
}

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

.page-faq .crumbs a {
  color: var(--mist-blue);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.page-faq .crumbs a:hover {
  color: var(--flash-orange);
  border-bottom-color: var(--flash-orange);
}

/* ---------- 首屏 ---------- */

.page-faq__hero {
  display: grid;
  gap: 30px;
  padding: 32px 0 34px;
  position: relative;
  border-bottom: 2px solid var(--faq-line-soft);
}

.page-faq__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--signal-green);
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(33px, 7.4vw, 74px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--chalk-white);
}

.page-faq__hl {
  background: linear-gradient(transparent 60%, rgba(255, 107, 26, .6) 60%);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.page-faq__lede {
  margin: 0 0 24px;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--mist-blue);
}

.page-faq__lede a {
  color: var(--chalk-white);
  text-decoration: none;
  border-bottom: 2px solid var(--flash-orange);
}

.page-faq__hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.page-faq__jump {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist-blue);
  text-decoration: none;
  border-bottom: 2px solid var(--feq-line-soft, rgba(242, 232, 213, .3));
}

.page-faq__jump:hover {
  color: var(--signal-green);
  border-bottom-color: var(--signal-green);
}

.page-faq__hero-side {
  border: var(--bw) solid var(--paper-cream);
  background: var(--stand-blue);
  box-shadow: var(--shadow-night);
  padding: 18px 20px 20px;
}

.page-faq__side-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--signal-green);
}

.page-faq__quick {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: none;
}

.page-faq__quick li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.65;
  color: #D3DEE8;
  padding-bottom: 9px;
  border-bottom: 1px solid rgba(138, 160, 180, .28);
}

.page-faq__quick li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq__quick .mono {
  font-size: 12px;
  color: var(--flash-orange);
  letter-spacing: .08em;
}

.page-faq__side-foot {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  padding-top: 14px;
  border-top: 2px solid rgba(200, 255, 61, .35);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--signal-green);
}

/* ---------- 筛选条 ---------- */

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 10px;
}

.page-faq .filter-chip {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
}

.page-faq__filter-note {
  margin: 0;
  padding-bottom: 6px;
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--mist-blue);
}

/* ---------- 章节通用 ---------- */

.page-faq__section {
  padding: 46px 0 6px;
}

.page-faq__sec-head {
  margin-bottom: 24px;
}

.page-faq .sec-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--chalk-white);
}

.page-faq__no {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--flash-orange);
}

.page-faq__sec-note {
  margin: 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-blue);
}

.page-faq__sec-note a {
  color: var(--chalk-white);
  text-decoration: none;
  border-bottom: 2px solid var(--ember-red);
}

.page-faq__sec-note a:hover {
  border-bottom-color: var(--flash-orange);
}

/* ---------- 三条路径 ---------- */

.page-faq__paths {
  display: grid;
  gap: 16px;
  padding: 18px;
  background: var(--paper-cream);
  border: var(--bw) solid var(--ink-brown);
  box-shadow: var(--shadow-hard);
}

.page-faq__path {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 14px 14px 16px;
  background: rgba(74, 58, 42, .07);
  border: 2px solid var(--paper-shade);
}

.page-faq__path-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ember-red);
}

.page-faq__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3px 12px;
  align-items: baseline;
  padding: 10px 12px;
  background: var(--chalk-white);
  border: 2px solid var(--ink-brown);
}

.page-faq__step-no {
  grid-row: span 2;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--flash-orange);
}

.page-faq__step-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .01em;
  color: var(--ink-brown);
}

.page-faq__step-hint {
  grid-column: 2;
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--paper-shade);
}

.page-faq__arrow {
  display: flex;
  justify-content: center;
  list-style: none;
  color: var(--flash-orange);
  padding: 1px 0;
}

.page-faq__arrow svg {
  display: block;
}

/* ---------- 问答区 4:8 ---------- */

.page-faq__qa-zone {
  display: grid;
  gap: 26px;
  padding: 46px 0 6px;
}

.page-faq__qa-index {
  padding: 16px 16px 18px;
  background: var(--stand-blue);
  border: var(--bw) solid var(--paper-cream);
  box-shadow: var(--shadow-night);
}

.page-faq__index-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--signal-green);
}

.page-faq__index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq__index a {
  display: block;
  padding: 8px 8px 8px 12px;
  border-left: 3px solid transparent;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.55;
  color: #C3D1DE;
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq__index a:hover {
  color: var(--chalk-white);
  border-left-color: var(--flash-orange);
  background: rgba(255, 107, 26, .12);
}

.page-faq__qa-body {
  display: grid;
  gap: 42px;
}

.page-faq__group {
  display: grid;
  gap: 0;
}

.page-faq__qa {
  margin-top: 16px;
  padding: 20px 20px 22px;
  background: var(--paper-cream);
  border: var(--bw) solid var(--ink-brown);
  box-shadow: var(--shadow-hard);
  transition: transform .24s var(--ease), box-shadow .24s var(--ease), opacity .24s var(--ease);
}

.page-faq__qa:hover {
  transform: translate(-2px, -2px);
  box-shadow: 12px 12px 0 var(--ink-brown);
}

.page-faq__q {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.3vw, 22px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--ink-brown);
}

.page-faq__q::before {
  content: "Q";
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 2px solid var(--flash-orange);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  color: var(--flash-orange);
}

.page-faq__a {
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-brown);
}

.page-faq__a p {
  margin: 0 0 10px;
}

.page-faq__a p:last-child {
  margin-bottom: 0;
}

.page-faq__a ul {
  margin: 0 0 10px;
  padding-left: 20px;
}

.page-faq__a li {
  margin-bottom: 5px;
}

.page-faq__a a {
  color: var(--ink-brown);
  text-decoration: none;
  border-bottom: 3px solid var(--flash-orange);
}

.page-faq__a a:hover {
  background: rgba(255, 107, 26, .18);
}

.page-faq__a .annot {
  margin-top: 12px;
  margin-bottom: 0;
  font-family: var(--font-serif);
  color: var(--paper-shade);
}

.page-faq__ui {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--ember-red);
  border-bottom: 2px solid rgba(226, 62, 31, .45);
}

/* ---------- 图片 ---------- */

.page-faq__figure {
  margin: 22px 0 0;
}

.page-faq__band-figure {
  margin: 40px auto 0;
}

.page-faq__figure img,
.page-faq__band-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--bw) solid var(--ink-brown);
  box-shadow: var(--shadow-hard);
}

.page-faq__figcap {
  margin: 12px 0 0;
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--mist-blue);
}

/* ---------- 版本说明 ---------- */

.page-faq__terminal {
  padding: 20px 18px 22px;
  background: linear-gradient(180deg, var(--faq-panel-dark), var(--ink-night));
  border: 2px solid var(--signal-green);
  box-shadow: 8px 8px 0 rgba(200, 255, 61, .16);
  font-family: var(--font-mono);
  color: var(--signal-green);
}

.page-faq__term-line {
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(200, 255, 61, .4);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--signal-green);
}

.page-faq__ver {
  padding: 12px 0;
  border-bottom: 1px dashed rgba(200, 255, 61, .3);
}

.page-faq__ver:last-child {
  border-bottom: 0;
  padding-bottom: 2px;
}

.page-faq__ver-sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding: 4px 0;
  cursor: pointer;
  list-style: none;
}

.page-faq__ver-sum::-webkit-details-marker {
  display: none;
}

.page-faq__ver-sum::marker {
  content: "";
}

.page-faq__ver-sum::after {
  content: "+";
  margin-left: auto;
  font-size: 18px;
  line-height: 1;
  color: var(--flash-orange);
}

.page-faq__ver[open] .page-faq__ver-sum::after {
  content: "−";
}

.page-faq__ver-no {
  padding: 2px 9px;
  border: 2px solid var(--flash-orange);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--flash-orange);
}

.page-faq__ver-name {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  color: var(--chalk-white);
}

.page-faq__ver-tag {
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--signal-green);
}

.page-faq__ver-body {
  padding: 12px 0 6px;
}

.page-faq__ver-body p {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.85;
  color: #BFD6C6;
}

.page-faq__ver-pages {
  display: inline-block;
  padding: 5px 10px;
  border: 1px dashed rgba(200, 255, 61, .55);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--signal-green);
}

/* ---------- 排查清单 ---------- */

.page-faq__trouble {
  display: grid;
  gap: 16px;
}

.page-faq__trouble-item {
  padding: 18px 20px 20px;
  background: var(--stand-blue);
  border: 2px solid var(--paper-cream);
  border-left: 8px solid var(--flash-orange);
  box-shadow: 6px 6px 0 #040A12;
}

.page-faq__trouble-item h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--paper-cream);
}

.page-faq__trouble-item ol {
  margin: 0;
  padding-left: 22px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: #CBD8E3;
}

.page-faq__trouble-item li {
  margin-bottom: 4px;
}

.page-faq__trouble-foot {
  margin: 22px 0 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist-blue);
}

.page-faq__trouble-foot a {
  color: var(--chalk-white);
  text-decoration: none;
  border-bottom: 2px solid var(--signal-green);
}

.page-faq__trouble-foot a:hover {
  color: var(--signal-green);
}

/* ---------- 术语表 ---------- */

.page-faq__glossary {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 2px solid var(--paper-shade);
}

.page-faq__term {
  display: grid;
  grid-template-columns: minmax(88px, auto) 1fr;
  gap: 4px 18px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px dashed var(--faq-line-soft);
  transition: opacity .2s var(--ease);
}

.page-faq__term dt {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: .02em;
  color: var(--signal-green);
}

.page-faq__term dd {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-blue);
}

.page-faq__term:hover dd {
  color: var(--chalk-white);
}

.page-faq__glossary-foot {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--mist-blue);
}

.page-faq__glossary-foot a {
  color: var(--chalk-white);
  text-decoration: none;
  border-bottom: 2px solid var(--flash-orange);
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-faq__step {
    grid-template-columns: auto 1fr;
  }

  .page-faq__glossary {
    grid-template-columns: 1fr 1fr;
    column-gap: 44px;
  }

  .page-faq__term:nth-child(1),
  .page-faq__term:nth-child(2) {
    border-top: 0;
  }
}

@media (min-width: 900px) {
  .page-faq {
    padding-inline: 32px;
  }

  .page-faq__hero {
    grid-template-columns: 7fr 5fr;
    gap: 44px;
    align-items: end;
    padding: 56px 0 46px;
  }

  .page-faq__paths {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 24px;
  }

  .page-faq__qa-zone {
    grid-template-columns: 4fr 8fr;
    gap: 44px;
    align-items: start;
    padding-top: 56px;
  }

  .page-faq__qa-index {
    position: sticky;
    top: 96px;
  }

  .page-faq__qa {
    padding: 24px 26px 26px;
  }
}

@media (min-width: 1200px) {
  .page-faq__hero {
    grid-template-columns: 8fr 4fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq__qa,
  .page-faq__index a,
  .page-faq__term {
    transition: none;
  }

  .page-faq__qa:hover {
    transform: none;
  }
}
<<<END>>>

.page-faq {
  --feq-line-soft: currentColor;
}