.page-faq {
  --faq-rule: rgba(227, 192, 138, .3);
  --faq-rule-ink: rgba(12, 18, 24, .16);
  --faq-soft-ink: rgba(12, 18, 24, .68);
  --faq-dark-card: rgba(12, 18, 24, .55);
  overflow-x: clip;
}

.page-faq .faq-sec {
  position: relative;
  padding-block: clamp(44px, 8vw, 92px);
}

.page-faq .faq-sec--ink { background: var(--ink); color: var(--paper); }
.page-faq .faq-sec--sand { background: var(--sand); color: var(--ink); }
.page-faq .faq-sec--light { background: var(--sand-light); color: var(--ink); }
.page-faq .faq-sec--rock { background: var(--ink-2); color: var(--paper); }
.page-faq .faq-sec--paper { background: var(--paper); color: var(--ink); }

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(22px, 4vw, 40px) clamp(52px, 9vw, 96px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 84% 8%, rgba(53, 240, 192, .12), transparent 44%),
    radial-gradient(circle at 8% 92%, rgba(166, 58, 40, .38), transparent 58%);
  pointer-events: none;
}

.page-faq .faq-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 38px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 5vw, 46px);
}

.page-faq .faq-hero__copy h1 {
  margin: 14px 0 18px;
  font-size: clamp(34px, 7.4vw, 78px);
  line-height: 1.02;
  font-weight: 900;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  margin: 0;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.8;
  color: rgba(251, 246, 238, .82);
}

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

.page-faq .hero-facts li {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--sand);
  background: var(--faq-dark-card);
  border: 1px solid var(--faq-rule);
  padding: 7px 10px;
}

.page-faq .mono-mint {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--mint);
}

.page-faq .mono-ink {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--red-deep);
  font-weight: 700;
}

.page-faq .faq-hero__media {
  margin: 0;
  padding: 10px;
  border: var(--bd);
  background: var(--ink-2);
  box-shadow: 8px 8px 0 var(--red-deep);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--faq-rule);
}

.page-faq .faq-hero__media figcaption {
  padding: 10px 2px 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--grey);
}

/* ---------- 三张入口卡 ---------- */
.page-faq .path-cards {
  list-style: none;
  margin: clamp(34px, 7vw, 62px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .path-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 20px 18px 18px;
  text-decoration: none;
  color: var(--paper);
  background: var(--ink-2);
  border: var(--bd);
  box-shadow: var(--hard);
  position: relative;
  transition: box-shadow .18s ease, border-color .18s ease;
}

.page-faq .path-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 52px;
  height: 6px;
  background: var(--red);
}

.page-faq .path-card:hover,
.page-faq .path-card:focus-visible {
  border-color: var(--mint);
  box-shadow: 8px 8px 0 var(--red-deep);
}

.page-faq .path-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--mint);
}

.page-faq .path-card__title {
  font-size: clamp(20px, 3.6vw, 25px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.2;
}

.page-faq .path-card__desc {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(251, 246, 238, .72);
}

.page-faq .path-card__go {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--sand);
}

/* ---------- 章节头部 ---------- */
.page-faq .faq-sec__head {
  max-width: 64ch;
  margin-bottom: clamp(26px, 5vw, 42px);
}

.page-faq .faq-sec__head h2,
.page-faq .escalate__main h2 {
  margin: 12px 0 14px;
  font-size: clamp(26px, 5vw, 46px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -.02em;
}

.page-faq .faq-sec__lead {
  margin: 0;
  font-size: clamp(15px, 2.6vw, 16.5px);
  line-height: 1.8;
  max-width: 56ch;
}

.page-faq .faq-sec--sand .faq-sec__lead,
.page-faq .faq-sec--light .faq-sec__lead,
.page-faq .faq-sec--paper .faq-sec__lead {
  color: var(--faq-soft-ink);
}

.page-faq .faq-sec--rock .faq-sec__lead,
.page-faq .faq-sec--ink .faq-sec__lead {
  color: rgba(251, 246, 238, .78);
}

/* ---------- 折叠检查卡 ---------- */
.page-faq .check-stack {
  display: grid;
  gap: 14px;
}

.page-faq .check-card {
  border: 2px solid var(--ink);
  background: var(--sand-light);
  box-shadow: 6px 6px 0 rgba(122, 36, 24, .9);
}

.page-faq .check-card > summary {
  display: grid;
  grid-template-columns: 36px 1fr 18px;
  align-items: center;
  gap: 12px;
  padding: 15px 14px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .check-card__num {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--red-deep);
  background: var(--paper);
  border: 2px solid var(--red);
}

.page-faq .check-card__title {
  font-size: clamp(16px, 3.4vw, 19px);
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-faq .check-card__sign {
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--red-deep);
  text-align: center;
}

.page-faq .check-card__sign::before { content: "+"; }
.page-faq .check-card[open] .check-card__sign::before { content: "–"; }

.page-faq .check-card__body {
  padding: 0 14px 16px;
  border-top: 1px solid var(--faq-rule-ink);
  margin-top: 2px;
  padding-top: 14px;
}

.page-faq .check-card__body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
}

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

.page-faq .judge {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  padding-left: 11px;
  border-left: 3px solid var(--red);
  color: var(--faq-soft-ink) !important;
  font-size: 14px !important;
}

.page-faq .dot {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--red);
}

.page-faq .inline-link { margin: 0 !important; }

.page-faq .inline-link a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--red-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--red);
  padding-bottom: 2px;
}

.page-faq .faq-sec--rock .inline-link a {
  color: var(--mint);
  border-bottom-color: rgba(53, 240, 192, .5);
}

/* ---------- 兼容规格 ---------- */
.page-faq .compat {
  margin-top: clamp(30px, 6vw, 52px);
}

.page-faq .compat h3 {
  margin: 0 0 14px;
  font-size: clamp(19px, 3.4vw, 24px);
  font-weight: 900;
  letter-spacing: -.01em;
}

.page-faq .spec-grid {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--faq-rule-ink);
  border: 2px solid var(--ink);
}

.page-faq .spec-cell {
  background: var(--paper);
  padding: 14px 16px;
}

.page-faq .spec-cell dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--red-deep);
}

.page-faq .spec-cell dd {
  margin: 7px 0 0;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

/* ---------- 分区 chips 与三步卡 ---------- */
.page-faq .zone-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(24px, 5vw, 36px);
  padding: 0;
}

.page-faq .zone-chips li {
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--ink);
  background: rgba(251, 246, 238, .72);
  border: 1px solid var(--faq-rule-ink);
  padding: 7px 10px;
}

.page-faq .zone-chips b {
  font-family: var(--font-mono);
  color: var(--red-deep);
  margin-right: 7px;
  letter-spacing: .06em;
}

.page-faq .step-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step-card {
  position: relative;
  padding: 44px 18px 18px;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 rgba(166, 58, 40, .3);
}

.page-faq .step-card__n {
  position: absolute;
  top: 16px;
  left: 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--paper);
  background: var(--red);
  padding: 4px 8px;
}

.page-faq .step-card h3 {
  margin: 0 0 10px;
  font-size: clamp(17px, 3.4vw, 20px);
  font-weight: 900;
  letter-spacing: -.01em;
}

.page-faq .step-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-soft-ink);
}

.page-faq .note-line {
  margin: 22px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--red);
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-soft-ink);
}

/* ---------- 报错流程 ---------- */
.page-faq .error-grid {
  display: grid;
  gap: clamp(22px, 4vw, 38px);
}

.page-faq .error-figure {
  margin: 0;
  padding: 8px;
  border: var(--bd);
  background: var(--ink);
  box-shadow: 7px 7px 0 rgba(166, 58, 40, .65);
}

.page-faq .error-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 11 / 8;
  object-fit: cover;
}

.page-faq .error-figure figcaption {
  padding: 10px 2px 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--grey);
}

.page-faq .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  position: relative;
}

.page-faq .flow::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background-image: linear-gradient(to bottom, rgba(53, 240, 192, .55) 0 6px, transparent 6px 12px);
  background-size: 2px 12px;
}

.page-faq .flow__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .flow__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--mint);
  background: var(--ink-2);
  border: 2px solid var(--mint);
}

.page-faq .flow__body {
  padding: 16px;
  border: var(--bd);
  background: var(--faq-dark-card);
}

.page-faq .flow__body h3 {
  margin: 0 0 8px;
  font-size: clamp(16px, 3.2vw, 18.5px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .flow__body p {
  margin: 0 0 9px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(251, 246, 238, .76);
}

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

.page-faq .flow__item--key .flow__num {
  color: var(--ink);
  background: var(--mint);
}

.page-faq .flow__item--key .flow__body {
  border-color: var(--mint);
  background: rgba(53, 240, 192, .08);
  box-shadow: 6px 6px 0 rgba(53, 240, 192, .16);
}

/* ---------- 对照表 ---------- */
.page-faq .table-wrap {
  margin-top: clamp(26px, 5vw, 42px);
  border: var(--bd);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .err-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .err-table caption {
  caption-side: top;
  text-align: left;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--grey);
  background: rgba(12, 18, 24, .5);
}

.page-faq .err-table th,
.page-faq .err-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(227, 192, 138, .2);
}

.page-faq .err-table thead th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  font-weight: 600;
  color: var(--sand);
  background: rgba(166, 58, 40, .32);
}

.page-faq .err-table tbody td {
  color: rgba(251, 246, 238, .86);
  line-height: 1.65;
}

.page-faq .err-table tbody tr:last-child td { border-bottom: 0; }

/* ---------- 日常使用 ---------- */
.page-faq .stat-row {
  display: grid;
  gap: 16px;
  margin-bottom: clamp(26px, 5vw, 40px);
}

.page-faq .stat {
  border-top: 3px solid var(--red);
  padding-top: 12px;
}

.page-faq .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 5.4vw, 36px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-faq .stat__k {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--faq-soft-ink);
}

.page-faq .watch-cols {
  display: grid;
  gap: 18px;
}

.page-faq .watch-col {
  padding: 20px;
  border: 2px solid var(--ink);
  background: rgba(227, 192, 138, .34);
}

.page-faq .watch-col--accent {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 6px 6px 0 rgba(166, 58, 40, .5);
}

.page-faq .watch-col h3 {
  margin: 0 0 10px;
  font-size: clamp(18px, 3.4vw, 21px);
  font-weight: 900;
  letter-spacing: -.01em;
}

.page-faq .watch-col p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--faq-soft-ink);
}

.page-faq .watch-col--accent p { color: rgba(251, 246, 238, .78); }
.page-faq .watch-col p:last-child { margin-bottom: 0; }

/* ---------- 升级联络 ---------- */
.page-faq .escalate {
  display: grid;
  gap: clamp(24px, 5vw, 40px);
}

.page-faq .check-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .check-list li {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 12px 14px;
  border: 1px solid var(--faq-rule);
  background: var(--faq-dark-card);
}

.page-faq .check-list input {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  border: 2px solid var(--sand);
  background: transparent;
  position: relative;
  cursor: pointer;
}

.page-faq .check-list input:checked {
  background: var(--mint);
  border-color: var(--mint);
}

.page-faq .check-list input:checked::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 6px;
  height: 10px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg);
}

.page-faq .check-list input:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

.page-faq .check-list label {
  font-size: 14.5px;
  line-height: 1.65;
  color: rgba(251, 246, 238, .88);
  cursor: pointer;
}

.page-faq .contact-panel {
  padding: 22px 20px;
  border: var(--bd);
  background: linear-gradient(155deg, rgba(166, 58, 40, .92), rgba(122, 36, 24, .96));
  box-shadow: var(--hard);
}

.page-faq .contact-panel__k {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--sand);
}

.page-faq .contact-panel__v {
  margin: 0 0 6px;
  font-size: clamp(15px, 3vw, 18px);
  font-weight: 700;
  word-break: break-all;
}

.page-faq .contact-panel__v a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 2px solid rgba(227, 192, 138, .6);
}

.page-faq .contact-panel__v--mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-faq .contact-panel__note {
  margin: 14px 0 20px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(251, 246, 238, .84);
}

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

/* ---------- 桌面与窄屏 ---------- */
@media (min-width: 600px) {
  .page-faq .check-card__body { padding-left: 62px; }
  .page-faq .spec-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .stat-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .step-cards { gap: 16px; }
}

@media (min-width: 860px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .faq-hero__media { margin-top: 8px; }

  .page-faq .path-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    padding-bottom: 46px;
  }

  .page-faq .path-cards__item:nth-child(2) { margin-top: 22px; }
  .page-faq .path-cards__item:nth-child(3) { margin-top: 44px; }

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

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

  .page-faq .error-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-faq .error-figure { position: sticky; top: 24px; }

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

  .page-faq .watch-cols {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 22px;
  }

  .page-faq .escalate {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-hero__media img { aspect-ratio: 3 / 2; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .path-card { transition: none; }
}
<<<END>>>