.page-faq {
  --faq-grid: 80px;
  --faq-teal-ink: #0E8C86;
  --faq-ink-soft: #33465c;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 11vw, 124px) 0 clamp(34px, 6vw, 62px);
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(90deg, rgba(36, 224, 214, .055) 0 1px, transparent 1px var(--faq-grid)),
    repeating-linear-gradient(0deg, rgba(36, 224, 214, .055) 0 1px, transparent 1px var(--faq-grid));
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__inner {
  position: relative;
}

.page-faq .breadcrumb ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--haze);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  text-decoration: underline;
}

.page-faq .faq-hero__kicker {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 74px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--mist);
  max-width: 17ch;
}

.page-faq .faq-hero__title span {
  display: block;
  color: var(--gold);
}

.page-faq .faq-hero__lede {
  margin: 24px 0 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--haze);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.page-faq .faq-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-toc__link {
  display: inline-block;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--haze);
  text-decoration: none;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--mist);
  border-color: var(--cyan-edge);
  background-color: var(--cyan-soft);
}

.page-faq .faq-toc__link.is-active,
.page-faq .faq-toc__link[aria-current="true"] {
  color: var(--ink-on-color);
  background-color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 通用小节标题 ---------- */
.page-faq .faq-head {
  max-width: 66ch;
}

.page-faq .faq-head h2 {
  margin: 16px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .faq-head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--haze);
}

/* ---------- 三层结构 ---------- */
.page-faq .faq-layers {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 38px;
  background-color: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-layer {
  position: relative;
  padding: 30px 24px 34px;
  background-color: var(--panel);
}

.page-faq .faq-layer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background-color: var(--cyan);
}

.page-faq .faq-layer--gold::before { background-color: var(--gold); }
.page-faq .faq-layer--green::before { background-color: var(--green); }

.page-faq .faq-layer__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--haze);
}

.page-faq .faq-layer h3 {
  margin: 14px 0 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .faq-layer p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--haze);
}

/* ---------- 术语卡（浅色反色区） ---------- */
.page-faq .faq-terms {
  padding: clamp(52px, 8vw, 92px) 0;
  background-color: var(--paper);
  color: var(--ink);
  border-top: 1px solid rgba(11, 22, 38, .14);
  border-bottom: 1px solid rgba(11, 22, 38, .14);
}

.page-faq .faq-terms .faq-head h2 { color: var(--ink); }
.page-faq .faq-terms .faq-head p { color: var(--faq-ink-soft); }

.page-faq .term-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 36px;
}

.page-faq .term-card {
  background-color: #fff;
  border: 1px solid rgba(11, 22, 38, .16);
}

.page-faq .term-card > summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

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

.page-faq .term-card__name {
  padding-bottom: 2px;
  border-bottom: 1px dashed var(--faq-teal-ink);
}

.page-faq .term-card__sign {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: 1px solid rgba(14, 140, 134, .45);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  color: var(--faq-teal-ink);
}

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

.page-faq .term-card__body {
  padding: 14px 18px 18px;
  border-top: 1px dashed rgba(11, 22, 38, .16);
}

.page-faq .term-card__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* ---------- 中段配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
  padding: clamp(40px, 6vw, 68px) 0;
  background-color: var(--ink);
}

.page-faq .faq-figure figcaption {
  margin-top: 16px;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--haze);
}

/* ---------- 编号问答矩阵 ---------- */
.page-faq .faq-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 38px;
}

.page-faq .faq-item {
  background-color: var(--panel);
  border: 1px solid var(--line);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__no {
  font-size: 17px;
  line-height: 1.45;
  color: var(--gold);
}

.page-faq .faq-item__q {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-item__sign {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-item__sign::before { content: "+"; }
.page-faq .faq-item[open] .faq-item__sign::before { content: "−"; }

.page-faq .faq-item[open] > summary {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item__body {
  padding: 14px 18px 18px;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--haze);
}

/* ---------- 流程四步带状图 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
  background-color: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-step {
  position: relative;
  padding: 26px 22px 30px;
  background-color: var(--panel);
}

.page-faq .faq-step::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background-color: var(--green);
  opacity: .6;
}

.page-faq .faq-step__no {
  display: block;
  font-size: 30px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-faq .faq-step h3 {
  margin: 16px 0 8px;
  font-size: 19px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--haze);
}

.page-faq .faq-flow__figure {
  margin: 34px 0 0;
}

/* ---------- 记录模板 ---------- */
.page-faq .faq-record {
  padding: clamp(52px, 8vw, 92px) 0;
  background-color: var(--paper);
  color: var(--ink);
  border-top: 1px solid rgba(11, 22, 38, .14);
  border-bottom: 1px solid rgba(11, 22, 38, .14);
}

.page-faq .faq-record .faq-head h2 { color: var(--ink); }
.page-faq .faq-record .faq-head p { color: var(--faq-ink-soft); }

.page-faq .faq-record__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 36px;
}

.page-faq .faq-template {
  padding: 24px 22px 26px;
  background-color: #fff;
  border: 1px solid rgba(11, 22, 38, .16);
  border-left: 3px solid var(--gold);
}

.page-faq .faq-template__title {
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--faq-ink-soft);
}

.page-faq .faq-template__pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  background-color: #EDF2F8;
  border: 1px dashed rgba(11, 22, 38, .22);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 2;
  color: var(--ink);
  white-space: pre;
}

.page-faq .faq-template__hint {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-checklist {
  padding: 24px 22px 26px;
  background-color: var(--ink);
  color: var(--mist);
}

.page-faq .faq-checklist__title {
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--haze);
}

.page-faq .faq-checklist ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.7;
  color: var(--haze);
}

.page-faq .faq-checklist li .mono {
  color: var(--gold);
  font-size: 13px;
  line-height: 1.9;
}

/* ---------- 还没解决 ---------- */
.page-faq .faq-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 38px;
}

.page-faq .faq-next__card {
  display: block;
  padding: 26px 24px 28px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  text-decoration: none;
  transition: transform .2s ease, border-color .2s ease;
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--cyan-edge);
}

.page-faq .faq-next__card h3 {
  margin: 16px 0 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .faq-next__card p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--haze);
}

.page-faq .faq-next__go {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-faq .faq-next__note {
  margin: 28px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--haze);
}

.page-faq .faq-next__note a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: var(--cyan-edge);
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .term-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .faq-layers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-step::after {
    inset: 0 0 auto 0;
    width: auto;
    height: 3px;
  }

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

  .page-faq .faq-record__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

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

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__link,
  .page-faq .faq-next__card {
    transition: none;
  }

  .page-faq .faq-next__card:hover,
  .page-faq .faq-next__card:focus-visible {
    transform: none;
  }
}