.page-faq {
  --faq-rail: 252px;
  --faq-gap: clamp(20px, 3vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 5vw, 64px) 0 clamp(28px, 4vw, 56px);
  border-bottom: 1px solid var(--bs-line);
  background:
    radial-gradient(120% 90% at 92% 8%, rgba(45, 140, 255, 0.14), transparent 62%),
    radial-gradient(90% 80% at 4% 100%, rgba(25, 214, 122, 0.10), transparent 60%);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: center;
}

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

.page-faq .faq-hero .bs-breadcrumb {
  margin-bottom: 18px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 18px;
  font-family: var(--bs-narrow);
  font-size: clamp(32px, 6.4vw, 62px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--bs-rice);
}

.page-faq .faq-hero .bs-lead {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.8;
  color: var(--bs-muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
  margin: 24px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--bs-line);
}

.page-faq .faq-hero__stats li {
  display: flex;
  align-items: baseline;
  gap: 7px;
  font-size: 13px;
  color: var(--bs-dim);
}

.page-faq .faq-hero__stats .bs-num {
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--bs-fluoro);
}

.page-faq .faq-hero__visual {
  position: relative;
  min-width: 0;
  border: 1px solid var(--bs-line-strong);
  background:
    repeating-linear-gradient(90deg, rgba(244, 241, 234, 0.05) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(0deg, rgba(244, 241, 234, 0.05) 0 1px, transparent 1px 56px),
    linear-gradient(160deg, rgba(14, 27, 42, 0.9), rgba(7, 11, 10, 0.95));
  overflow: hidden;
}

.page-faq .faq-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.92;
}

.page-faq .faq-hero__scan {
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--bs-matrix), transparent);
  opacity: 0.7;
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding: clamp(36px, 6vw, 84px) 0 clamp(48px, 7vw, 96px);
}

/* ---------- 分类目录 ---------- */
.page-faq .faq-toc {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px;
  border: 1px solid var(--bs-line);
  background: rgba(14, 27, 42, 0.55);
}

.page-faq .faq-toc__title {
  margin: 0 0 8px;
  padding: 0 10px;
  color: var(--bs-dim);
  letter-spacing: 0.14em;
}

.page-faq .faq-toc a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--bs-muted);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-toc a:hover {
  color: var(--bs-rice);
  background: rgba(244, 241, 234, 0.05);
}

.page-faq .faq-toc a[aria-current="true"] {
  color: var(--bs-rice);
  border-left-color: var(--bs-matrix);
  background: rgba(25, 214, 122, 0.08);
}

.page-faq .faq-toc .bs-toc__index {
  font-family: var(--bs-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--bs-clay);
}

/* ---------- 章节 ---------- */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-block {
  padding-bottom: clamp(34px, 5vw, 60px);
}

.page-faq .faq-block + .faq-block {
  padding-top: clamp(28px, 4vw, 46px);
  border-top: 1px solid var(--bs-line);
}

.page-faq .faq-block__head {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}

.page-faq .faq-block__head .bs-index {
  font-family: var(--bs-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
}

.page-faq .faq-block h2 {
  margin: 0;
  font-family: var(--bs-narrow);
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--bs-rice);
}

.page-faq .faq-block__lead {
  max-width: 62ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--bs-muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  counter-reset: faq;
  border-top: 1px solid var(--bs-line);
}

.page-faq .faq-item {
  counter-increment: faq;
  border-bottom: 1px solid var(--bs-line);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 2px;
  margin: 0;
  cursor: pointer;
  list-style: none;
  color: var(--bs-rice);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.62;
  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::before {
  content: counter(faq, decimal-leading-zero);
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--bs-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--bs-clay);
}

.page-faq .faq-item > summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  padding-top: 1px;
  font-family: var(--bs-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--bs-matrix);
}

.page-faq .faq-item[open] > summary {
  color: var(--bs-matrix);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
}

.page-faq .faq-item > summary:hover {
  color: var(--bs-fluoro);
}

.page-faq .faq-answer {
  padding: 0 8px 20px 34px;
  color: var(--bs-muted);
  font-size: 15px;
  line-height: 1.78;
}

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

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

.page-faq .faq-answer strong {
  color: var(--bs-rice);
  font-weight: 600;
}

.page-faq .faq-answer a {
  color: var(--bs-electric);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-answer a:hover {
  color: var(--bs-fluoro);
}

.page-faq .faq-answer--warm {
  margin: 0 0 18px 34px;
  padding: 16px 18px;
  border-left: 3px solid var(--bs-fluoro);
  background: var(--bs-warm);
  color: var(--bs-black);
  font-size: 14.5px;
}

.page-faq .faq-answer--warm strong {
  color: var(--bs-black);
}

.page-faq .faq-answer--warm a {
  color: #0B3550;
}

.page-faq .faq-answer--warm .bs-num {
  font-family: var(--bs-mono);
  font-weight: 700;
  color: #0B3550;
}

.page-faq .faq-path {
  display: inline-block;
  margin-top: 8px;
  padding: 4px 9px;
  border: 1px solid rgba(45, 140, 255, 0.45);
  background: rgba(45, 140, 255, 0.10);
  color: #8CC2FF;
  font-family: var(--bs-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
}

.page-faq .faq-answer--warm .faq-path {
  border-color: rgba(16, 21, 18, 0.28);
  background: rgba(16, 21, 18, 0.07);
  color: #0B3550;
}

/* ---------- 入口形态列表 ---------- */
.page-faq .faq-viewlist {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--bs-line);
}

.page-faq .faq-viewlist li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--bs-line);
}

.page-faq .faq-viewlist__num {
  padding-top: 3px;
  font-family: var(--bs-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--bs-electric);
}

.page-faq .faq-viewlist h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  color: var(--bs-rice);
}

.page-faq .faq-viewlist p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--bs-muted);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 26px 0 0;
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--bs-dim);
}

/* ---------- 进入动画 ---------- */
.page-faq [data-reveal] {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.page-faq [data-reveal].bs-reveal--pending {
  opacity: 0;
  transform: translateY(14px);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal],
  .page-faq [data-reveal].bs-reveal--pending {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 桌面分栏 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.04fr 0.96fr;
  }

  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--bs-header-h, 64px) + 24px);
  }

  .page-faq .faq-answer {
    padding-right: 14%;
  }

  .page-faq .faq-answer--warm {
    padding-right: 28px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-shell {
    gap: clamp(40px, 4vw, 72px);
  }

  .page-faq .faq-item > summary {
    padding: 18px 2px;
  }
}
<<<END>>>