.page-faq {
  --faq-edge: rgba(46, 242, 208, 0.18);
  --faq-edge-soft: rgba(143, 166, 178, 0.16);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .page-main {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.5vw, 44px);
  margin-top: clamp(16px, 3vw, 28px);
}

/* ---------- 场景坐标轨 ---------- */
.page-faq .faq-rail {
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(16, 59, 49, 0.9), rgba(4, 26, 21, 0.55));
  border-radius: var(--radius);
  padding: 16px;
  align-self: start;
}

.page-faq .faq-rail__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cold-blue-gray);
  margin: 0 0 12px;
}

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

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px;
  font-size: 14px;
  color: var(--warm-white);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  background: rgba(46, 242, 208, 0.07);
  border-left-color: var(--neon-cyan);
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--neon-cyan);
}

.page-faq .faq-legend {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--faq-edge-soft);
  display: grid;
  gap: 6px;
}

.page-faq .faq-legend__item {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}

.page-faq .dot--cyan {
  background: var(--neon-cyan);
  box-shadow: 0 0 0 3px rgba(46, 242, 208, 0.15);
}

.page-faq .dot--orange {
  background: var(--signal-orange);
  box-shadow: 0 0 0 3px rgba(255, 122, 47, 0.15);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-bottom: clamp(18px, 3vw, 30px);
  border-bottom: 1px solid var(--faq-edge-soft);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 5.6vw, 3.9rem);
  line-height: 1.04;
  letter-spacing: 0.005em;
  margin: 10px 0 0;
  max-width: 22ch;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.75;
  color: var(--warm-white);
}

.page-faq .faq-hero__slice {
  display: flex;
  gap: 6px;
  height: 8px;
  margin-top: 24px;
  max-width: 360px;
}

.page-faq .faq-hero__slice .slice {
  display: block;
  height: 100%;
  transform: skewX(-26deg);
}

.page-faq .slice--a {
  width: 46%;
  background: var(--neon-cyan);
}

.page-faq .slice--b {
  width: 24%;
  background: var(--signal-orange);
}

.page-faq .slice--c {
  width: 14%;
  background: rgba(143, 166, 178, 0.55);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(22px, 3vw, 30px);
  background: var(--faq-edge-soft);
  border: 1px solid var(--faq-edge-soft);
}

.page-faq .faq-stats__cell {
  background: var(--panel);
  padding: 14px 12px;
}

.page-faq .faq-stats__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  line-height: 1.1;
  color: var(--signal-orange);
}

.page-faq .faq-stats__num em {
  font-style: normal;
  font-size: 0.55em;
  margin-left: 2px;
  color: var(--warm-white);
}

.page-faq .faq-stats__label {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
  color: var(--muted);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-section {
  padding-top: clamp(30px, 4.4vw, 56px);
}

.page-faq .faq-section__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--neon-cyan);
}

.page-faq .faq-section__tag::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--neon-cyan);
}

.page-faq .faq-h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  line-height: 1.18;
  margin: 0 0 10px;
  max-width: 26ch;
  color: var(--warm-white);
}

.page-faq .faq-sub {
  margin: 0 0 clamp(16px, 2.5vw, 26px);
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-note {
  margin: clamp(14px, 2vw, 20px) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 66ch;
}

.page-faq .link-cyan {
  color: var(--neon-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 242, 208, 0.4);
}

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

/* ---------- 三步路径卡 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .step {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid rgba(46, 242, 208, 0.45);
  border-radius: var(--radius);
  padding: 18px 16px 20px;
  transition: transform 0.2s ease, border-top-color 0.2s ease;
}

.page-faq .step:hover {
  transform: translateY(-2px);
  border-top-color: var(--signal-orange);
}

.page-faq .step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--neon-cyan);
}

.page-faq .step__title {
  font-family: var(--font-display);
  font-size: 1.18rem;
  margin: 8px 0 6px;
  color: var(--warm-white);
}

.page-faq .step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 两步导航 ---------- */
.page-faq .flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0 0 clamp(18px, 3vw, 26px);
}

.page-faq .flow__node {
  background: linear-gradient(150deg, rgba(43, 42, 110, 0.5), rgba(10, 43, 36, 0.88));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
}

.page-faq .flow__node--b {
  background: linear-gradient(150deg, rgba(110, 31, 58, 0.45), rgba(10, 43, 36, 0.88));
}

.page-faq .flow__step {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--neon-cyan);
}

.page-faq .flow__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 6px 0 6px;
  color: var(--warm-white);
}

.page-faq .flow__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .flow__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--signal-orange);
  transform: rotate(90deg);
}

/* ---------- 图片 ---------- */
.page-faq .img-frame {
  margin: clamp(16px, 3vw, 26px) 0 0;
}

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

/* ---------- 阵容检索条件 ---------- */
.page-faq .facets {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .facet {
  border: 1px solid var(--faq-edge-soft);
  border-left: 2px solid var(--neon-cyan);
  background: rgba(10, 43, 36, 0.6);
  padding: 12px 12px 14px;
}

.page-faq .facet__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--neon-cyan);
}

.page-faq .facet__desc {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--muted);
}

.page-faq .route {
  list-style: none;
  counter-reset: route;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-edge-soft);
}

.page-faq .route li {
  counter-increment: route;
  position: relative;
  padding: 13px 0 13px 44px;
  border-bottom: 1px dashed var(--faq-edge-soft);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .route li::before {
  content: counter(route, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--signal-orange);
}

.page-faq .route li strong {
  color: var(--warm-white);
  font-weight: 600;
}

/* ---------- 适配矩阵 ---------- */
.page-faq .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 14px;
}

.page-faq .matrix-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
}

.page-faq .matrix {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .matrix th,
.page-faq .matrix td {
  text-align: left;
  padding: 12px 14px;
  vertical-align: top;
  border-bottom: 1px solid var(--faq-edge-soft);
}

.page-faq .matrix thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon-cyan);
  background: var(--pitch-green);
  white-space: nowrap;
}

.page-faq .matrix tbody th {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--warm-white);
  white-space: nowrap;
  border-left: 2px solid var(--signal-orange);
}

.page-faq .matrix td {
  color: var(--muted);
  line-height: 1.68;
}

.page-faq .matrix tbody tr:hover th,
.page-faq .matrix tbody tr:hover td {
  background: rgba(46, 242, 208, 0.05);
}

.page-faq .matrix tbody tr:last-child th,
.page-faq .matrix tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--faq-edge-soft);
}

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

.page-faq .qa summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--warm-white);
  transition: color 0.18s ease;
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--signal-orange);
}

.page-faq .qa[open] summary::after {
  content: "–";
}

.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  color: var(--neon-cyan);
}

.page-faq .qa__body {
  padding: 0 0 18px;
  max-width: 70ch;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--muted);
}

.page-faq .qa__body p {
  margin: 0 0 8px;
}

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

/* ---------- 联系面板 ---------- */
.page-faq .help {
  position: relative;
  margin-top: clamp(30px, 4.4vw, 56px);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(110, 31, 58, 0.35), rgba(10, 43, 36, 0.9) 46%, rgba(4, 26, 21, 0.92));
  padding: clamp(20px, 3.4vw, 34px);
  border-radius: var(--radius);
}

.page-faq .help::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--signal-orange);
}

.page-faq .help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-faq .help__note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 48ch;
}

.page-faq .help__panel {
  border: 1px solid var(--faq-edge-soft);
  background: rgba(4, 26, 21, 0.55);
  padding: 4px 14px;
}

.page-faq .help__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--faq-edge-soft);
}

.page-faq .help__row:last-child {
  border-bottom: none;
}

.page-faq .help__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cold-blue-gray);
}

.page-faq .help__val {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--warm-white);
  word-break: break-word;
}

.page-faq .help__val a {
  color: var(--warm-white);
  text-decoration: none;
  border-bottom: 1px solid var(--signal-orange);
  padding-bottom: 1px;
}

.page-faq .help__val a:hover,
.page-faq .help__val a:focus-visible {
  color: var(--signal-orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 720px) {
  .page-faq .flow {
    grid-template-columns: minmax(0, 1fr) 46px minmax(0, 1fr);
    align-items: stretch;
  }

  .page-faq .flow__arrow {
    transform: none;
  }
}

@media (min-width: 860px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -19px;
    width: 19px;
    border-top: 1px dashed rgba(46, 242, 208, 0.4);
  }

  .page-faq .facets {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .help__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 32px;
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(28px, 3.6vw, 52px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--masthead-h) + 26px);
  }

  .page-faq .faq-hero h1 {
    max-width: 24ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step,
  .page-faq .qa summary,
  .page-faq .faq-rail__list a {
    transition: none;
  }

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