.page-faq {
  --faq-gap: clamp(20px, 4vw, 40px);
  --faq-cell: clamp(28px, 8vw, 56px);
  display: block;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  padding: clamp(20px, 4vw, 36px) 0 clamp(28px, 5vw, 56px);
  align-items: end;
}

.page-faq .faq-hero__lead h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 60px);
  line-height: 1.14;
  letter-spacing: 0.03em;
  color: var(--mist);
  margin: 0 0 18px;
  max-width: 18ch;
}

.page-faq .faq-hero__intro {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.9;
  color: var(--slate);
  margin: 0 0 26px;
  max-width: 62ch;
}

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

.page-faq .faq-hero__legend {
  padding: clamp(20px, 3vw, 28px);
}

.page-faq .legend-title {
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  margin: 0 0 16px;
}

.page-faq .legend-axis {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.page-faq .legend-axis__y,
.page-faq .legend-axis__x {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-faq .legend-axis__plot {
  position: relative;
  height: 68px;
  border-left: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background:
    linear-gradient(to right, rgba(143, 166, 196, 0.14) 1px, transparent 1px) 0 0 / 25% 100%,
    linear-gradient(to top, rgba(143, 166, 196, 0.14) 1px, transparent 1px) 0 0 / 100% 50%;
}

.page-faq .legend-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 199, 0.16);
  top: 22%;
  left: 24%;
}

.page-faq .legend-dot--orange {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.16);
  top: 58%;
  left: 56%;
}

.page-faq .legend-dot--violet {
  background: var(--violet);
  box-shadow: 0 0 0 4px rgba(123, 77, 255, 0.16);
  top: 36%;
  left: 80%;
}

.page-faq .legend-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .legend-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.page-faq .legend-swatch {
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 2px;
  background: var(--cyan);
}

.page-faq .legend-swatch--orange { background: var(--orange); }
.page-faq .legend-swatch--violet { background: var(--violet); }
.page-faq .legend-swatch--dim { background: rgba(143, 166, 196, 0.28); }

/* ---------- 指标条 ---------- */
.page-faq .faq-stats {
  list-style: none;
  margin: 0 0 clamp(36px, 7vw, 72px);
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 4px;
  background: var(--ink-800);
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 5vw, 38px);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-faq .faq-stat:last-child .faq-stat__num {
  color: var(--orange);
}

.page-faq .faq-stat__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 通用章节 ---------- */
.page-faq .faq-section {
  padding: clamp(32px, 6vw, 64px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-section__head {
  margin-bottom: clamp(24px, 4vw, 40px);
  max-width: 64ch;
}

.page-faq .faq-section__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.25;
  letter-spacing: 0.04em;
  color: var(--mist);
  margin: 0 0 12px;
}

.page-faq .faq-section__head .section-note {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
  margin: 0;
}

/* ---------- 步骤 ---------- */
.page-faq .step-layout {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

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

.page-faq .step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .step:first-child { padding-top: 0; }
.page-faq .step:last-child { border-bottom: 0; }

.page-faq .step__no {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-950);
  background: var(--cyan);
  padding: 5px 9px;
  border-radius: 2px;
  height: fit-content;
}

.page-faq .step__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--mist);
  margin: 0 0 8px;
}

.page-faq .step__text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
  margin: 0;
}

.page-faq .step-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: var(--ink-700);
}

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

.page-faq .media-caption {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* ---------- 字段说明 ---------- */
.page-faq .field-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .field-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .field-name {
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .field-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
  margin: 0;
}

.page-faq .field-code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--mist);
  background: rgba(123, 77, 255, 0.18);
  border: 1px solid rgba(123, 77, 255, 0.4);
  border-radius: 3px;
  padding: 1px 7px;
}

/* ---------- 热力图 ---------- */
.page-faq .heat-wrap {
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(16px, 3vw, 28px);
  margin-bottom: clamp(20px, 4vw, 32px);
}

.page-faq .heat-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
}

.page-faq .heat-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .heat-head__hint {
  font-size: 12px;
  color: var(--slate);
}

.page-faq .heatmap {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}

.page-faq .heat {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  min-height: 26px;
  border-radius: 3px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--slate);
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .heat:hover {
  transform: scale(1.12);
  border-color: var(--orange);
  color: var(--ink-950);
  background: var(--orange);
}

.page-faq .heat.d0 { background: rgba(143, 166, 196, 0.07); }
.page-faq .heat.d1 { background: rgba(0, 229, 199, 0.14); color: var(--mist); border-color: rgba(0, 229, 199, 0.22); }
.page-faq .heat.d2 { background: rgba(0, 229, 199, 0.3); color: var(--ink-950); border-color: rgba(0, 229, 199, 0.4); }
.page-faq .heat.d3 { background: rgba(0, 229, 199, 0.55); color: var(--ink-950); border-color: rgba(0, 229, 199, 0.6); }
.page-faq .heat.d4 { background: var(--cyan); color: var(--ink-950); border-color: var(--cyan); font-weight: 700; }

.page-faq .heat-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
}

.page-faq .heat-key {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: var(--slate);
}

.page-faq .heat-key .legend-swatch {
  margin-top: 0;
}

.page-faq .heat-legend__note {
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
  flex: 1 1 240px;
  border-left: 2px solid var(--violet);
  padding-left: 10px;
}

.page-faq .heat-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: var(--ink-700);
}

/* ---------- 批次 ---------- */
.page-faq .batch-track {
  display: grid;
  gap: 14px;
}

.page-faq .batch-card {
  padding: clamp(18px, 3vw, 26px);
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .batch-card__time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--orange);
  margin: 0;
}

.page-faq .batch-card:last-child .batch-card__time {
  color: var(--violet);
}

.page-faq .batch-card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.03em;
  color: var(--mist);
  margin: 0;
  line-height: 1.4;
}

.page-faq .batch-card__text {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--slate);
  margin: 0;
}

.page-faq .batch-card .tag {
  justify-self: start;
}

.page-faq .inline-link {
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  justify-self: start;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .inline-link:hover,
.page-faq .inline-link:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

/* ---------- 移动端 ---------- */
.page-faq .mobile-guide {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .mobile-guide__text p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--slate);
  margin: 0 0 14px;
}

.page-faq .mobile-tips {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .mobile-tips li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .mobile-tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan);
}

.page-faq .mobile-guide__phone {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 22px 14px 72px;
  width: min(100%, 300px);
  margin: 0 auto;
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  background: linear-gradient(180deg, var(--ink-700), var(--ink-900));
  overflow: hidden;
}

.page-faq .phone-notch {
  width: 62px;
  height: 6px;
  border-radius: 999px;
  background: rgba(143, 166, 196, 0.4);
  justify-self: center;
  margin-bottom: 8px;
}

.page-faq .phone-bar {
  height: 8px;
  border-radius: 3px;
  background: rgba(0, 229, 199, 0.28);
  width: 88%;
}

.page-faq .phone-bar--short { width: 54%; }

.page-faq .phone-card {
  height: 44px;
  border-radius: 6px;
  background: rgba(0, 229, 199, 0.1);
  border: 1px solid rgba(0, 229, 199, 0.22);
}

.page-faq .phone-card--soft {
  background: rgba(143, 166, 196, 0.08);
  border-color: var(--line);
}

.page-faq .dock-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line-strong);
}

.page-faq .dock-item {
  font-size: 11px;
  letter-spacing: 0.04em;
  text-align: center;
  padding: 13px 2px;
  background: var(--ink-950);
  color: var(--slate);
}

.page-faq .dock-item--active {
  color: var(--ink-950);
  background: var(--cyan);
  font-weight: 700;
}

/* ---------- FAQ 手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--ink-700);
  overflow: hidden;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--line-strong);
  background: var(--ink-800);
}

.page-faq .faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--mist);
  list-style: none;
}

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

.page-faq .faq-q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 200ms var(--ease), color 200ms var(--ease);
}

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

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

.page-faq .faq-a {
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--slate);
  border-top: 1px dashed var(--line);
  padding-top: 14px;
  margin-top: 0;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  padding: clamp(28px, 5vw, 48px) 0 clamp(48px, 8vw, 88px);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 22px;
  padding: clamp(22px, 4vw, 40px);
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 107, 53, 0.18), transparent 58%),
    linear-gradient(140deg, var(--ink-700), var(--ink-900));
}

.page-faq .faq-cta__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 3.4vw, 30px);
  letter-spacing: 0.04em;
  color: var(--mist);
  margin: 0 0 10px;
}

.page-faq .faq-cta__text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
  margin: 0;
  max-width: 56ch;
}

.page-faq .faq-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-stat {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 22px 18px;
  }

  .page-faq .field-row {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-faq .batch-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    align-items: end;
  }

  .page-faq .step-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-faq .step-figure {
    position: sticky;
    top: 96px;
  }

  .page-faq .field-row {
    grid-template-columns: 176px minmax(0, 1fr);
  }

  .page-faq .mobile-guide {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.62fr);
    align-items: center;
  }

  .page-faq .mobile-guide__phone {
    margin: 0;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1140px) {
  .page-faq .heatmap {
    gap: 8px;
  }

  .page-faq .heat {
    font-size: 12.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .heat,
  .page-faq .faq-item,
  .page-faq .faq-q::after,
  .page-faq .inline-link {
    transition: none;
  }

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