.page-faq {
  --faq-rule: rgba(28, 74, 56, 0.62);
  --faq-soft: rgba(143, 167, 155, 0.24);
  --faq-gap: clamp(2.75rem, 7vw, 5.5rem);
  display: block;
  background: var(--ink-900);
  color: var(--snow);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(6rem, 15vw, 9.5rem) 0 clamp(2.75rem, 6vw, 4.25rem);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(53, 185, 224, 0.16), transparent 58%),
    linear-gradient(158deg, var(--ink-800) 0%, var(--ink-900) 72%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -18%;
  bottom: -34%;
  width: min(560px, 82vw);
  height: 62%;
  background: linear-gradient(118deg, rgba(125, 240, 190, 0.16), rgba(125, 240, 190, 0) 68%);
  clip-path: polygon(18% 0, 100% 0, 82% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .crumbs {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(1.75rem, 5vw, 2.75rem);
}

.page-faq .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .crumbs__item + .crumbs__item::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--line);
}

.page-faq .crumbs__list a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .crumbs__list a:hover,
.page-faq .crumbs__list a:focus-visible {
  color: var(--mint);
  border-color: var(--mint);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}

.page-faq .faq-hero__lead h1 {
  margin: 0.75rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7.2vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -0.015em;
  max-width: 17ch;
}

.page-faq .faq-hero__lead .lede {
  margin: clamp(1.1rem, 3vw, 1.6rem) 0 0;
  max-width: 36em;
  color: var(--snow);
  opacity: 0.86;
}

.page-faq .faq-hero__note {
  margin: 1rem 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--line);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-stats {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--faq-rule);
  border-top: 1px solid var(--faq-rule);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-stats .stat {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 0.9rem 0;
  background: var(--ink-900);
}

.page-faq .faq-stats .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 5vw, 2rem);
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  min-width: 4.5ch;
}

.page-faq .faq-stats .stat__label {
  font-size: 0.875rem;
  color: var(--muted);
}

/* ---------- 通用区块 ---------- */
.page-faq .faq-block {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-block + .faq-block {
  margin-top: 0;
}

.page-faq .faq-head {
  max-width: 46rem;
  margin-bottom: clamp(2rem, 5vw, 3.25rem);
}

.page-faq .faq-head__lede {
  margin-top: 0.9rem;
  color: var(--muted);
  max-width: 40em;
}

.page-faq .faq-head .section-title {
  margin: 0.6rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 4.6vw, 2.125rem);
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-faq .faq-note {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--line);
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 44em;
}

.page-faq .faq-note--action a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq a {
  color: var(--mint);
}

/* ---------- 三步上手 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
  position: relative;
}

.page-faq .faq-step {
  position: relative;
  padding-left: 1.35rem;
  border-left: 1px solid var(--faq-rule);
}

.page-faq .faq-step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  line-height: 1;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-step__title {
  margin: 0.8rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.4;
}

.page-faq .faq-step__text {
  margin: 0.6rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(233, 244, 238, 0.8);
  max-width: 34em;
}

.page-faq .faq-step__hint {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  color: var(--muted);
}

/* ---------- 更新节奏 ---------- */
.page-faq .faq-cadence__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}

.page-faq .faq-figure,
.page-faq .faq-cadence__figure {
  margin: 0;
  border-radius: var(--r-cut);
  overflow: hidden;
  border: 1px solid var(--faq-rule);
  background: linear-gradient(150deg, var(--ink-700), var(--ink-800));
}

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

.page-faq .media__caption {
  padding: 0.75rem 1rem 0.9rem;
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--faq-soft);
}

.page-faq .faq-figure {
  margin-bottom: clamp(2rem, 5vw, 2.75rem);
}

.page-faq .faq-cadence {
  display: grid;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-band {
  position: relative;
  padding: 1.35rem 1.25rem 1.4rem;
  background: var(--ink-800);
  border-radius: var(--r-cut-sm);
  border-left: 3px solid var(--line);
}

.page-faq .faq-band--mint { border-left-color: var(--mint); }
.page-faq .faq-band--amber { border-left-color: var(--amber); }
.page-faq .faq-band--violet { border-left-color: var(--violet); }

.page-faq .faq-band__slot {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-band--mint .faq-band__slot { color: var(--mint); }
.page-faq .faq-band--amber .faq-band__slot { color: var(--amber); }
.page-faq .faq-band--violet .faq-band__slot { color: var(--violet); }

.page-faq .faq-band__title {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.45;
}

.page-faq .faq-band__text {
  margin: 0.55rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(233, 244, 238, 0.76);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-filter .filter-chip {
  padding: 0.42rem 0.95rem;
  font-size: 0.8125rem;
  border-radius: 999px;
}

.page-faq .faq-filter .filter-chip[aria-pressed="true"] {
  color: var(--ink-900);
  background: var(--mint);
  border-color: var(--mint);
}

.page-faq .filter-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--faq-rule);
}

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

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.15rem 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--snow);
  transition: color 0.2s ease;
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--mint);
}

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

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--mint);
}

.page-faq .faq-item__body {
  padding: 0 0 1.35rem;
  max-width: 42em;
}

.page-faq .faq-item__body p {
  margin: 0 0 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(233, 244, 238, 0.82);
}

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

.page-faq .faq-inline-note {
  padding-left: 0.9rem;
  border-left: 2px solid var(--line);
  font-size: 0.8125rem !important;
  color: var(--muted) !important;
}

.page-faq [data-filter-item][hidden] {
  display: none;
}

/* ---------- 纠错清单 ---------- */
.page-faq .faq-fix {
  display: grid;
  gap: clamp(2rem, 5vw, 3.25rem);
}

.page-faq .faq-fix__intro p {
  margin: 0.9rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(233, 244, 238, 0.82);
  max-width: 36em;
}

.page-faq .faq-fix__intro .section-title {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 4.6vw, 2rem);
  line-height: 1.26;
}

.page-faq .faq-fix__link {
  font-size: 0.875rem !important;
  color: var(--muted) !important;
}

.page-faq .faq-fix__link a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-checklist {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-check;
}

.page-faq .faq-checklist__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.15rem 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-checklist__item:last-child {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-checklist__no {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--amber);
  padding-top: 0.15rem;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-checklist__item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.45;
}

.page-faq .faq-checklist__item p {
  margin: 0.45rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 术语表 ---------- */
.page-faq .faq-terms {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-term {
  display: grid;
  gap: 0.35rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-term--head {
  display: none;
}

.page-faq .faq-term__name {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--mint);
  letter-spacing: 0.01em;
}

.page-faq .faq-term__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(233, 244, 238, 0.8);
}

.page-faq .faq-term__range {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-faq .faq-term__slip {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-term__slip::before {
  content: "误读 · ";
  color: var(--red);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-faq .faq-cadence {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-faq .faq-cadence .faq-band:last-child {
    grid-column: 1 / -1;
  }

  .page-faq .faq-term {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.9fr) minmax(0, 1fr) minmax(0, 1.3fr);
    gap: 0 1.25rem;
    align-items: baseline;
  }

  .page-faq .faq-term--head {
    display: grid;
    padding: 0.7rem 0;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
    color: var(--muted);
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-term --slip::before {
    content: "误读 · ";
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2.5rem;
  }

  .page-faq .faq-step {
    padding-left: 0;
    padding-top: 1.6rem;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .page-faq .faq-step::before {
    content: "";
    position: absolute;
    top: -4px;
    left: 0;
    width: 26px;
    height: 6px;
    background: var(--mint);
    clip-path: polygon(0 0, 100% 0, 86% 100%, 14% 100%);
  }

  .page-faq .faq-step__no {
    margin-top: 0.5rem;
  }

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

  .page-faq .faq-cadence .faq-band:last-child {
    grid-column: auto;
  }

  .page-faq .faq-cadence__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.7fr);
    align-items: start;
  }

  .page-faq .faq-fix {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.35fr);
    align-items: start;
  }

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

@media (min-width: 1200px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 0.8fr);
  }
}
</PAGE_CSS>>>