.page-faq {
  --faq-gap: 24px;
  --faq-sticky: 96px;
  --faq-w: 36em;
  color: var(--white);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding: 28px 0 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 56px;
  overflow: hidden;
}

.page-faq .faq-hero .guide-line {
  position: absolute;
  top: 96px;
  left: 4vw;
  width: 1px;
  height: 140px;
  background: linear-gradient(180deg, transparent, var(--line) 22%, var(--line) 78%, transparent);
  transform: rotate(15deg);
  transform-origin: top left;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

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

.page-faq .faq-hero .eyebrow {
  margin: 0;
  font-size: var(--f-12);
  letter-spacing: 0.22em;
  color: var(--mist);
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  font-size: clamp(32px, 7.6vw, 68px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: var(--faq-w);
  font-size: var(--f-15);
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* 数据牌 */
.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  background: var(--section);
}

.page-faq .faq-stat__value {
  order: -1;
  margin: 0;
  font-size: var(--f-32);
  font-weight: 800;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-stat__label {
  font-size: var(--f-12);
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 96px;
}

/* ---------- 分类目录 ---------- */
.page-faq .faq-toc {
  padding: 18px 16px 16px;
  background: var(--section);
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-size: var(--f-12);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-toc__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  font-size: var(--f-14);
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--white);
  border-left-color: var(--cyan);
  background: rgba(127, 231, 208, 0.07);
}

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

.page-faq .faq-toc__num {
  flex: none;
  font-size: var(--f-12);
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-toc__foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: var(--f-12);
  line-height: 1.7;
  color: var(--mist);
}

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

.page-faq .faq-section {
  padding: 0;
}

.page-faq .faq-section + .faq-section {
  margin-top: 64px;
}

.page-faq .faq-section__head {
  padding-top: 18px;
  border-top: 1px solid var(--line);
  transition: border-color 0.2s ease;
}

.page-faq .faq-section:target .faq-section__head {
  border-top-color: var(--cyan);
}

.page-faq .faq-section__index {
  margin: 0;
  font-size: var(--f-12);
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-faq .faq-section__title {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-section__note {
  margin: 10px 0 0;
  max-width: var(--faq-w);
  font-size: var(--f-15);
  line-height: 1.75;
  color: var(--mist);
}

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

.page-faq .faq-figure .figure__frame {
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--deck);
}

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

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  font-size: var(--f-12);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-figure--side {
  margin: 24px 0 0;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 8px;
  margin-top: 24px;
}

.page-faq .qa {
  background: var(--deck);
  border: 1px solid var(--line);
  border-radius: var(--r);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.page-faq .qa:hover {
  border-color: var(--cyan-deep);
  transform: translateY(-2px);
}

.page-faq .qa[open] {
  border-color: var(--cyan-deep);
  transform: none;
}

.page-faq .qa__q {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: var(--f-15);
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

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

.page-faq .qa__marker {
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
  transition: background-color 0.15s ease;
}

.page-faq .qa[open] .qa__marker {
  background: var(--cyan);
}

.page-faq .qa__a {
  padding: 0 18px 18px 40px;
  font-size: var(--f-15);
  line-height: 1.8;
  color: var(--mist);
  animation: faq-open 120ms ease-out;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: var(--faq-w);
}

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

.page-faq .qa__a .link {
  color: var(--cyan);
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 排查流程 ---------- */
.page-faq .triage {
  margin: 16px 0 0;
  padding: 16px;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.page-faq .triage__label {
  margin: 0 0 12px;
  font-size: var(--f-12);
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-faq .triage__scroll {
  overflow-x: auto;
  padding-bottom: 4px;
}

.page-faq .triage__svg {
  display: block;
  width: 100%;
  min-width: 560px;
  height: auto;
}

/* ---------- 提醒章节两栏 ---------- */
.page-faq .faq-alert-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.page-faq .faq-alert-grid__list {
  min-width: 0;
}

/* ---------- 联系面板 ---------- */
.page-faq .faq-help__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .faq-contact {
  align-self: start;
  padding: 22px 20px;
  background: var(--section);
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.page-faq .faq-contact__label {
  margin: 0;
  font-size: var(--f-12);
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-faq .faq-contact__mail {
  margin: 10px 0 0;
  font-size: var(--f-18);
  line-height: 1.5;
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  margin: 12px 0 0;
  font-size: var(--f-14);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-contact__links {
  display: grid;
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__links .link {
  font-size: var(--f-14);
  line-height: 1.6;
  color: var(--cyan);
}

/* ---------- 桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-layout {
    gap: 56px;
  }

  .page-faq .faq-section + .faq-section {
    margin-top: 80px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 40px 0 72px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: var(--gutter);
    align-items: end;
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: var(--faq-sticky);
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-alert-grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-alert-grid .qa-list {
    margin-top: 24px;
  }

  .page-faq .faq-figure--side {
    margin-top: 24px;
    position: sticky;
    top: var(--faq-sticky);
  }

  .page-faq .faq-help__panel {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .faq-help__panel .qa-list {
    margin-top: 24px;
  }
}

/* ---------- 降低动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__a {
    animation: none;
  }

  .page-faq .qa:hover {
    transform: none;
  }
}
<<<END>>>