.page-faq {
  --faq-line: rgba(31, 23, 16, 0.14);
  --faq-line-strong: rgba(31, 23, 16, 0.26);
  --faq-line-dark: rgba(185, 255, 61, 0.18);
  --faq-ink-soft: rgba(31, 23, 16, 0.76);
  --faq-paper-soft: rgba(244, 237, 221, 0.78);
  background: var(--paper-100);
  color: var(--brown);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: clip;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  text-wrap: balance;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 56px;
  color: var(--paper-100);
  background:
    radial-gradient(120% 100% at 92% 2%, rgba(185, 255, 61, 0.16), transparent 58%),
    radial-gradient(90% 80% at 0% 100%, rgba(255, 106, 43, 0.1), transparent 62%),
    linear-gradient(168deg, var(--ink-950) 0%, var(--ink-900) 54%, var(--ink-800) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 5px;
  background: linear-gradient(90deg, var(--lime), var(--orange));
  opacity: 0.8;
}

.page-faq .faq-hero .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--steel);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-faq .faq-hero .breadcrumb a:hover,
.page-faq .faq-hero .breadcrumb a:focus-visible {
  color: var(--lime);
}

.page-faq .faq-hero .breadcrumb__sep {
  color: rgba(138, 162, 176, 0.55);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 34px;
  margin-top: 32px;
}

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

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

.page-faq .faq-kicker::before {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: var(--lime);
}

.page-faq .faq-hero h1 {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(29px, 5.4vw, 52px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--paper-100);
  max-width: 22ch;
}

.page-faq .faq-hero__text {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-paper-soft);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero__panel {
  padding: 22px;
  border: 1px solid var(--faq-line-dark);
  border-radius: var(--r-lg);
  background: rgba(3, 18, 14, 0.52);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-panel__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-faq .faq-panel__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-panel__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  color: var(--paper-100);
  font-size: 14px;
  line-height: 1.55;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-panel__list a:hover,
.page-faq .faq-panel__list a:focus-visible {
  background: rgba(185, 255, 61, 0.1);
  border-color: var(--faq-line-dark);
  color: var(--lime);
}

.page-faq .faq-panel__list .num {
  flex: 0 0 auto;
  min-width: 38px;
  font-size: 12px;
  color: var(--lime);
}

.page-faq .faq-panel__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line-dark);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 双栏问答 ---------- */
.page-faq .faq-body {
  padding: 44px 0 60px;
  background: var(--paper-100);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(31, 23, 16, 0.5);
}

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

.page-faq .faq-toc__list li {
  flex: 0 0 auto;
}

.page-faq .faq-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-pill);
  font-size: 13px;
  line-height: 1.4;
  color: var(--brown);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  border-color: var(--lime-dim);
  background: rgba(185, 255, 61, 0.2);
}

.page-faq .faq-toc__list .num {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

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

.page-faq .faq-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-faq .filter-pill {
  appearance: none;
  padding: 9px 18px;
  border: 1px solid var(--faq-line-strong);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--brown);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.4;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-faq .filter-pill:hover {
  border-color: var(--lime-dim);
}

.page-faq .filter-pill[aria-pressed="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink-950);
  font-weight: 600;
}

.page-faq .filter-pill:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: var(--paper-200);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(111, 154, 34, 0.5);
  box-shadow: 0 12px 28px rgba(31, 23, 16, 0.08);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  grid-column: 2;
  grid-row: 2;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--lime-dim);
  transition: color 0.18s ease;
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
  color: var(--orange);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
  border-radius: var(--r-md);
}

.page-faq .faq-tag {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(31, 23, 16, 0.48);
}

.page-faq .faq-q {
  grid-column: 1;
  grid-row: 2;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--brown);
}

.page-faq .faq-a {
  margin: 0 18px 18px;
  padding-left: 16px;
  border-left: 2px solid var(--lime);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--faq-ink-soft);
}

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

.page-faq .faq-a p:first-child {
  margin-top: 0;
}

.page-faq .v {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 6px;
  background: rgba(185, 255, 61, 0.42);
  font-family: var(--font-mono);
  font-size: 0.9em;
  font-weight: 700;
  color: var(--ink-950);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-empty {
  margin: 18px 0 0;
  padding: 16px 18px;
  border: 1px dashed var(--faq-line-strong);
  border-radius: var(--r-md);
  font-size: 14px;
  color: var(--faq-ink-soft);
}

/* ---------- 专题 ---------- */
.page-faq .faq-topic {
  padding: 46px 0;
}

.page-faq .faq-topic--dark {
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-950) 100%);
  color: var(--paper-100);
}

.page-faq .faq-topic--paper {
  background: var(--paper-200);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .topic-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  margin-bottom: 26px;
}

.page-faq .topic-num {
  padding-top: 7px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-faq .topic-head__body {
  border-left: 4px solid var(--lime);
  padding-left: 16px;
}

.page-faq .topic-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-faq .topic-head p {
  margin: 12px 0 0;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--faq-ink-soft);
}

.page-faq .faq-topic--dark .topic-head p {
  color: var(--faq-paper-soft);
}

.page-faq .topic-split {
  display: grid;
  gap: 28px;
}

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

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--faq-line-dark);
  background: var(--ink-800);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--faq-paper-soft);
  opacity: 0.82;
}

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .step-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-faq .step-idx {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: var(--r-pill);
  background: var(--lime);
  color: var(--ink-950);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .step-list h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .step-list p {
  margin: 5px 0 0;
  font-size: 13.8px;
  line-height: 1.78;
  color: var(--faq-paper-soft);
}

.page-faq .topic-foot {
  margin: 26px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--faq-paper-soft);
}

.page-faq .topic-foot a,
.page-faq .faq-topic--paper .topic-foot a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-topic--paper .topic-foot {
  color: var(--faq-ink-soft);
}

.page-faq .faq-topic--paper .topic-foot a {
  color: var(--lime-dim);
}

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

.page-faq .spec {
  display: grid;
  gap: 4px 18px;
  padding: 15px 2px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .spec:first-child {
  border-top: 1px solid var(--faq-line);
}

.page-faq .spec__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(31, 23, 16, 0.52);
}

.page-faq .spec__val {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink-800);
  font-variant-numeric: tabular-nums;
}

.page-faq .spec__note {
  font-size: 14px;
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .refresh-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-faq .refresh-list li {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .refresh-list .num {
  display: block;
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}

.page-faq .refresh-list .unit {
  display: inline-block;
  margin-left: 3px;
  font-size: 12px;
  font-weight: 500;
  color: var(--steel);
  letter-spacing: 0.06em;
}

.page-faq .refresh-list h3 {
  margin: 4px 0 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-100);
}

.page-faq .refresh-list p {
  margin: 5px 0 0;
  font-size: 13.8px;
  line-height: 1.78;
  color: var(--faq-paper-soft);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  position: relative;
  padding: 48px 0;
  background: var(--ink-950);
  color: var(--paper-100);
}

.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lime), var(--orange));
  opacity: 0.7;
}

.page-faq .faq-contact__inner {
  display: grid;
  gap: 28px;
}

.page-faq .faq-contact h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.8vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-faq .faq-contact__lead p {
  margin: 14px 0 0;
  max-width: 48ch;
  font-size: 14.8px;
  line-height: 1.85;
  color: var(--faq-paper-soft);
}

.page-faq .faq-contact__lead a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
  word-break: break-all;
}

.page-faq .faq-contact__card {
  padding: 20px;
  border: 1px solid var(--faq-line-dark);
  border-radius: var(--r-lg);
  background: rgba(11, 59, 46, 0.5);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-contact__meta {
  margin: 0 0 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-contact__meta .num {
  color: var(--paper-100);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.page-faq .faq-contact__card .btn {
  margin-top: 12px;
}

.page-faq :focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 中等宽度 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 32px 0 68px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: start;
    margin-top: 38px;
  }

  .page-faq .faq-hero__text {
    font-size: 16px;
  }

  .page-faq .spec {
    grid-template-columns: 108px minmax(120px, 150px) minmax(0, 1fr);
    align-items: baseline;
  }

  .page-faq .topic-split {
    gap: 32px;
  }

  .page-faq .faq-contact__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: center;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-hero {
    padding: 34px 0 84px;
  }

  .page-faq .faq-body {
    padding: 76px 0 92px;
  }

  .page-faq .faq-body__grid {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h, 104px) + 24px);
    align-self: start;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc__list a {
    border: none;
    border-left: 2px solid var(--faq-line);
    border-radius: 0;
    padding: 8px 0 8px 14px;
    white-space: normal;
    transition: border-color 0.2s ease, color 0.2s ease;
  }

  .page-faq .faq-toc__list a:hover,
  .page-faq .faq-toc__list a:focus-visible {
    border-left-color: var(--lime);
    background: transparent;
    color: var(--ink-800);
  }

  .page-faq .faq-topic {
    padding: 78px 0;
  }

  .page-faq .topic-head {
    gap: 22px;
    margin-bottom: 34px;
  }

  .page-faq .topic-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .topic-split--reverse {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-faq .topic-split--reverse .faq-figure {
    order: 2;
  }

  .page-faq .faq-q {
    font-size: 15.5px;
  }

  .page-faq .faq-a {
    font-size: 15px;
    padding-right: 12px;
  }

  .page-faq .faq-contact {
    padding: 72px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .filter-pill,
  .page-faq .faq-item,
  .page-faq .faq-toc__list a,
  .page-faq .faq-panel__list a {
    transition: none;
  }
}
<<<END>>>