.page-faq {
  --faq-side-w: 210px;
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font-sans);
}

.page-faq .faq-crumb {
  padding: 18px 0 0;
  font-size: 13px;
}

.page-faq .faq-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-lead {
  padding: 22px 0 44px;
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-lead-grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-lead-copy {
  min-width: 0;
}

.page-faq .faq-lead h1 {
  margin: 8px 0 14px;
  font-size: clamp(27px, 6vw, 46px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-faq .faq-lead-text {
  max-width: 34em;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
}

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

.page-faq .faq-start-item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 13px 15px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: border-color 0.18s var(--ease);
}

.page-faq .faq-start-item:hover {
  border-color: var(--cobalt);
}

.page-faq .faq-start-icon {
  grid-row: 1 / span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--copper-light);
  color: var(--cobalt-deep);
}

.page-faq .faq-start-body {
  min-width: 0;
}

.page-faq .faq-start-title {
  margin: 0 0 3px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-faq .faq-start-desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-2);
}

.page-faq .faq-start-link {
  grid-column: 2;
  justify-self: start;
  margin-top: 6px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--cobalt);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.page-faq .faq-start-link span {
  display: inline-block;
  color: var(--orange);
  transition: transform 0.18s var(--ease);
}

.page-faq .faq-start-link:hover {
  border-bottom-color: var(--cobalt);
}

.page-faq .faq-start-link:hover span {
  transform: translateX(6px);
}

.page-faq .faq-start-link:focus-visible {
  outline: 2px solid var(--cobalt);
  outline-offset: 3px;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-lead-figure {
  align-self: start;
}

.page-faq .faq-media {
  overflow: hidden;
  background: var(--sand-2);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

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

.page-faq .faq-caption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--ink-2);
}

/* ---------- 问答墙 ---------- */
.page-faq .faq-wall {
  padding: 38px 0 46px;
  background: var(--sand-2);
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-wall-grid {
  display: grid;
  gap: 24px;
}

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

.page-faq .faq-side-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-faq .faq-side-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-side-list li {
  flex: 0 0 auto;
}

.page-faq .faq-side-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-side-list a:hover,
.page-faq .faq-side-list a:focus-visible {
  color: var(--cobalt);
  border-color: var(--cobalt);
}

.page-faq .faq-side-list a:focus-visible {
  outline: 2px solid var(--cobalt);
  outline-offset: 2px;
}

.page-faq .faq-side-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cobalt);
}

.page-faq .faq-side-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-2);
}

.page-faq .faq-side-note a {
  color: var(--cobalt);
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 79, 216, 0.4);
}

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

.page-faq .faq-group + .faq-group {
  margin-top: 32px;
}

.page-faq .faq-group h2 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
  font-size: clamp(19px, 3.2vw, 23px);
  font-weight: 900;
  letter-spacing: 0.03em;
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--cobalt);
}

/* ---------- 折叠卡 ---------- */
.page-faq .faq-item {
  background: var(--card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--copper-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: border-color 0.18s var(--ease);
}

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

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 13px 15px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q:hover {
  color: var(--cobalt-deep);
}

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

.page-faq .faq-mark {
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.4;
  color: var(--copper);
  transition: transform 0.18s var(--ease);
}

.page-faq .faq-item[open] .faq-mark {
  transform: rotate(45deg);
}

.page-faq .faq-a {
  margin: 0;
  padding: 0 15px 15px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .faq-inline-figure {
  margin-top: 18px;
}

/* ---------- 底部色带 ---------- */
.page-faq .faq-band {
  padding: 36px 0;
  background: var(--cobalt-deep);
  color: #ffffff;
}

.page-faq .faq-band-inner {
  display: grid;
  gap: 18px;
  align-items: center;
}

.page-faq .faq-band h2 {
  margin: 0 0 8px;
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 900;
  letter-spacing: 0.03em;
  color: #ffffff;
}

.page-faq .faq-band p {
  margin: 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
}

.page-faq .faq-band-mail {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: #ffffff;
  word-break: break-all;
}

.page-faq .faq-band-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-copy {
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  padding: 10px 16px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-copy:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: #ffffff;
}

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

.page-faq .faq-band-link {
  font-size: 14px;
  color: #ffffff;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
}

.page-faq .faq-band-link:hover {
  border-bottom-color: #ffffff;
}

.page-faq .faq-band-link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-lead-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-caption {
    font-size: 13px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-lead {
    padding: 28px 0 52px;
  }

  .page-faq .faq-wall {
    padding: 44px 0 54px;
  }

  .page-faq .faq-wall-grid {
    grid-template-columns: var(--faq-side-w) minmax(0, 1fr);
    gap: 46px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 20px;
    align-self: start;
  }

  .page-faq .faq-side-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-side-list li {
    flex: 1 1 auto;
  }

  .page-faq .faq-side-list a {
    width: 100%;
    padding: 9px 0 9px 12px;
    background: transparent;
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0;
  }

  .page-faq .faq-side-list a:hover,
  .page-faq .faq-side-list a:focus-visible {
    border-left-color: var(--cobalt);
    background: rgba(30, 79, 216, 0.06);
  }

  .page-faq .faq-q {
    padding: 14px 18px;
    font-size: 15.5px;
  }

  .page-faq .faq-a {
    padding: 0 18px 16px;
    max-width: 62ch;
  }

  .page-faq .faq-inline-figure {
    max-width: 540px;
  }

  .page-faq .faq-band {
    padding: 42px 0;
  }

  .page-faq .faq-band-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-start-link span,
  .page-faq .faq-mark,
  .page-faq .faq-item,
  .page-faq .faq-copy {
    transition: none;
  }

  .page-faq .faq-start-link:hover span {
    transform: none;
  }
}
<<<END>>>