.page-faq {
  --faq-index-w: 218px;
  --faq-q-size: 1.0625rem;
  background: var(--navy-900);
  color: var(--ink);
  overflow-x: hidden;
  padding-bottom: 0;
}

.page-faq .container {
  width: 100%;
}

/* ---------- 首屏报头 ---------- */
.page-faq .breadcrumb {
  margin-top: 1.5rem;
  font-size: var(--fs-12);
  color: var(--muted);
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  margin-top: 1.25rem;
  padding: 2.5rem 0 2.25rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(160deg, var(--navy-700) 0%, var(--navy-800) 45%, var(--navy-900) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -14%;
  width: min(52%, 540px);
  height: 170%;
  background: linear-gradient(180deg, rgba(255, 90, 31, 0.22), rgba(255, 90, 31, 0) 74%);
  transform: rotate(var(--slant));
  pointer-events: none;
}

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

.page-faq .faq-hero .eyebrow {
  color: var(--orange-300);
}

.page-faq .faq-hero h1 {
  margin: 0.75rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.05rem, 6.6vw, 4.25rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--ink);
  transform: rotate(-2deg);
  transform-origin: left center;
  max-width: 22ch;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin: 1.75rem 0 0;
  padding: 1.1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__stats li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.page-faq .faq-hero__stat-num {
  flex: 0 0 auto;
  min-width: 3.4ch;
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  font-weight: 500;
  color: var(--green-400);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__stat-label {
  font-size: var(--fs-14);
  color: var(--muted);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-top: 2.5rem;
  padding-bottom: 3.5rem;
}

/* ---------- 左侧分类索引 ---------- */
.page-faq .faq-index {
  order: -1;
}

.page-faq .faq-index__title {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-index__list {
  position: relative;
  margin: 0;
  padding: 0.25rem 0 0.25rem 1.5rem;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-faq .faq-index__list li {
  position: relative;
}

.page-faq .faq-index__list li::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 0.75em;
  width: 9px;
  height: 9px;
  margin-left: -5px;
  border-radius: 50%;
  background: var(--navy-600);
  border: 1px solid var(--line);
  transition: background-color 0.12s var(--ease), border-color 0.12s var(--ease), box-shadow 0.12s var(--ease);
}

.page-faq .faq-index__list li:hover::before,
.page-faq .faq-index__list li:focus-within::before {
  background: var(--green-400);
  border-color: var(--green-400);
  box-shadow: 0 0 0 4px rgba(61, 242, 140, 0.16);
}

.page-faq .faq-index__list a {
  display: block;
  padding: 0.42rem 0;
  font-size: var(--fs-14);
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.12s var(--ease), border-color 0.12s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--orange-500);
}

.page-faq .faq-index__note {
  margin: 1rem 0 0;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-sec {
  padding: 1.75rem 0 2.25rem;
  border-top: 1px solid var(--line);
  scroll-margin-top: 5.5rem;
}

.page-faq .faq-sec:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-sec__head {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.page-faq .faq-sec__num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.2em;
  color: var(--orange-300);
}

.page-faq .faq-sec__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 4.4vw, 2.125rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-sec__lead {
  margin: 0;
  max-width: 64ch;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 折叠问答条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1.05rem 0;
  cursor: pointer;
  list-style: none;
  transition: color 0.12s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "";
  flex: 0 0 auto;
  margin-left: auto;
  margin-top: 0.5em;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--muted);
  transition: transform 0.18s var(--ease), border-top-color 0.12s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(180deg);
  border-top-color: var(--orange-500);
}

.page-faq .faq-item summary:hover::after {
  border-top-color: var(--orange-300);
}

.page-faq .faq-item summary:hover .faq-item__q,
.page-faq .faq-item[open] summary .faq-item__q {
  color: var(--ink);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--green-400);
  outline-offset: 2px;
}

.page-faq .faq-item__q {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--faq-q-size);
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
  transition: color 0.12s var(--ease);
}

.page-faq .faq-item__a {
  padding: 0 0 1.4rem;
}

.page-faq .faq-item__a p {
  margin: 0 0 0.8rem;
  max-width: 68ch;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--ink);
}

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

.page-faq .faq-item__a a {
  color: var(--orange-300);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.12s var(--ease), color 0.12s var(--ease);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--orange-500);
  border-bottom-color: var(--orange-500);
}

/* 关键数字行 */
.page-faq .faq-key {
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.6rem;
  margin: 0 0 0.85rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--orange-500);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--green-400);
  font-variant-numeric: tabular-nums;
}

/* ---------- 分区与配图并排 ---------- */
.page-faq .faq-sec--media .faq-sec__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

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

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

.page-faq .faq-figure--full {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-figure .media-frame__caption {
  margin-top: 0.75rem;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 底部反馈入口 ---------- */
.page-faq .faq-cta {
  background: var(--paper);
  color: var(--paper-ink);
  padding: 3.5rem 0 4.5rem;
}

.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: start;
}

.page-faq .faq-cta .eyebrow--muted {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--navy-600);
}

.page-faq .faq-cta h2 {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.6vw, 2.125rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper-ink);
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--navy-700);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-faq .faq-cta__actions .btn {
  flex: 1 1 auto;
  text-align: center;
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 3.25rem 0 3rem;
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-faq .faq-hero__stats li {
    flex-direction: column;
    gap: 0.35rem;
    padding-right: 1rem;
    border-right: 1px solid var(--line);
  }

  .page-faq .faq-hero__stats li:last-child {
    border-right: 0;
  }

  .page-faq .faq-cta__actions .btn {
    flex: 0 0 auto;
    min-width: 11rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 3.5rem;
    padding-top: 3.5rem;
    padding-bottom: 4.5rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 5.5rem;
    align-self: start;
  }

  .page-faq .faq-index__list {
    padding-left: 1.75rem;
  }

  .page-faq .faq-index__list li::before {
    left: -1.75rem;
  }

  .page-faq .faq-sec {
    padding: 2.25rem 0 3rem;
  }

  .page-faq .faq-sec--media .faq-sec__split {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 2.5rem;
    align-items: start;
  }

  .page-faq .faq-sec--media .faq-figure {
    position: sticky;
    top: 5.5rem;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 3rem;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-hero h1 {
    max-width: 20ch;
  }

  .page-faq .faq-sec__head {
    grid-template-columns: 3.5rem minmax(0, 1fr);
    grid-template-areas:
      "num title"
      ". lead";
    column-gap: 1.25rem;
    align-items: baseline;
  }

  .page-faq .faq-sec__num {
    grid-area: num;
    padding-top: 0.6rem;
  }

  .page-faq .faq-sec__head h2 {
    grid-area: title;
  }

  .page-faq .faq-sec__lead {
    grid-area: lead;
    margin-top: 0.35rem;
  }
}
<<<END>>>