.page-faq {
  --faq-rail: 236px;
  --faq-gap: clamp(24px, 3.4vw, 56px);
  --faq-muted: #44554B;
  --faq-hair: rgba(17, 21, 18, 0.16);
  --faq-hair-soft: rgba(17, 21, 18, 0.1);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--chalk);
  padding: clamp(18px, 2.4vw, 26px) 0 clamp(40px, 5vw, 76px);
  border-bottom: var(--rule);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(46, 100, 67, 0.32) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(46, 100, 67, 0.32) 0 1px, transparent 1px 88px);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(118deg, rgba(27, 68, 46, 0.9) 0%, rgba(10, 28, 20, 0.2) 52%, rgba(10, 28, 20, 0.96) 100%);
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumbs {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sage);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-faq .faq-hero .breadcrumbs a {
  color: var(--sage);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumbs a:hover {
  color: var(--volt);
}

.page-faq .faq-hero .breadcrumbs [aria-current="page"] {
  color: var(--chalk);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: end;
  margin-top: clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-hero-copy .eyebrow {
  color: var(--volt);
  margin: 0;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.4vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  color: var(--chalk);
}

.page-faq .faq-lede {
  margin: 20px 0 0;
  max-width: 52ch;
  padding-left: 16px;
  border-left: 2px solid var(--volt);
  color: var(--sage);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
}

.page-faq .faq-hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero-figure {
  margin: 0;
  position: relative;
}

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

/* ---------- 内容区 ---------- */
.page-faq .faq-body {
  background: var(--paper);
  color: var(--carbon);
  padding: clamp(32px, 4.6vw, 68px) 0 clamp(48px, 6vw, 96px);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  align-items: start;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-rail {
  border-top: 1px solid var(--faq-hair);
  padding-top: 14px;
}

.page-faq .faq-rail .eyebrow {
  margin: 0 0 12px;
  color: var(--tactical);
  display: block;
}

.page-faq .toc {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-faq .toc::-webkit-scrollbar {
  display: none;
}

.page-faq .toc-link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  flex: 0 0 auto;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--faq-muted);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .toc-link:hover {
  color: var(--ink);
  background: rgba(46, 100, 67, 0.08);
}

.page-faq .toc-link[aria-current="true"] {
  color: var(--ink);
  background: rgba(46, 100, 67, 0.13);
}

.page-faq .toc-link .num {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--tactical);
}

.page-faq .faq-rail-note {
  display: none;
}

/* ---------- 分类与条目 ---------- */
.page-faq .faq-cat + .faq-cat {
  margin-top: clamp(38px, 5vw, 76px);
}

.page-faq .faq-cat-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-cat-num {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--tactical);
  flex: 0 0 auto;
}

.page-faq .faq-cat-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-cat-note {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-muted);
  max-width: 56ch;
}

.page-faq .faq-cat-lead {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin: 16px 0 8px;
  align-items: start;
}

.page-faq .faq-inline-media {
  margin: 0;
  position: relative;
}

.page-faq .faq-inline-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 230px;
  object-fit: cover;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-hair-soft);
  transition: background-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-item[open] {
  background: rgba(46, 100, 67, 0.055);
  box-shadow: inset 2px 0 0 var(--volt);
}

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 17px 14px 17px 12px;
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
}

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

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

.page-faq .faq-qnum {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--tactical);
  padding-top: 4px;
  flex: 0 0 auto;
}

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-qsign {
  flex: 0 0 auto;
  width: 13px;
  height: 13px;
  margin-top: 6px;
  position: relative;
  border: 1px solid var(--tactical);
}

.page-faq .faq-qsign::before,
.page-faq .faq-qsign::after {
  content: "";
  position: absolute;
  background: var(--tactical);
  transition: transform 0.2s var(--ease);
}

.page-faq .faq-qsign::before {
  left: 50%;
  top: 2px;
  bottom: 2px;
  width: 1px;
  transform: translateX(-50%);
}

.page-faq .faq-qsign::after {
  top: 50%;
  left: 2px;
  right: 2px;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-item[open] .faq-qsign::before {
  transform: translateX(-50%) scaleY(0);
}

.page-faq .faq-item[open] .faq-qsign {
  border-color: var(--ink);
}

.page-faq .faq-item[open] .faq-qsign::after {
  background: var(--ink);
}

.page-faq .faq-a {
  padding: 0 16px 22px 39px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-muted);
}

.page-faq .faq-a p {
  margin: 12px 0 0;
}

.page-faq .faq-a p:first-child {
  margin-top: 0;
}

.page-faq .faq-a a {
  color: var(--tactical);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

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

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.page-faq .faq-steps .num {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--paper);
  background: var(--tactical);
  text-align: center;
  padding: 3px 0;
}

/* ---------- 联系卡片 ---------- */
.page-faq .faq-contact-card {
  margin: 22px 0 8px;
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--chalk);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-contact-row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--faq-hair-soft);
}

.page-faq .faq-contact-k {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--tactical);
  text-transform: uppercase;
}

.page-faq .faq-contact-v {
  font-family: var(--font-num);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink);
  word-break: break-all;
}

.page-faq .faq-contact-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--faq-muted);
}

.page-faq .faq-contact-note a {
  color: var(--tactical);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-cat-lead {
    grid-template-columns: minmax(0, 1fr) 190px;
    gap: 24px;
  }

  .page-faq .faq-inline-media img {
    height: 218px;
  }

  .page-faq .faq-a {
    padding-left: 47px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: var(--faq-gap);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: clamp(72px, 9vh, 104px);
    border-top: none;
    padding-top: 0;
    border-left: 1px solid var(--faq-hair);
    padding-left: 16px;
  }

  .page-faq .toc {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
  }

  .page-faq .toc-link {
    flex: 0 0 auto;
    padding: 10px 10px;
    font-size: 13px;
  }

  .page-faq .faq-rail-note {
    display: block;
    margin-top: 22px;
    padding-top: 16px;
    border-top: 1px solid var(--faq-hair-soft);
  }

  .page-faq .faq-rail-note p {
    margin: 0 0 10px;
    font-size: 12.5px;
    line-height: 1.65;
    color: var(--faq-muted);
  }

  .page-faq .faq-item > summary {
    padding: 19px 18px 19px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-qsign::before,
  .page-faq .faq-qsign::after,
  .page-faq .toc-link {
    transition: none;
  }
}
<<<END>>>