.page-faq {
  --faq-rule: rgba(124, 120, 153, .22);
  --faq-rule-mid: rgba(124, 120, 153, .38);
  background: var(--space-950);
  color: var(--fog);
  font-family: var(--font-body);
}

.page-faq .faq-wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(18px, 4vw, 40px) var(--gutter) clamp(64px, 10vw, 120px);
}

.page-faq .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-faq .faq-hero {
  padding: clamp(26px, 5vw, 52px) 0 clamp(26px, 4vw, 40px);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 22ch;
  font-size: clamp(27px, 5.4vw, 50px);
  line-height: 1.18;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--fog);
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--slate);
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(24px, 4vw, 38px);
}

.page-faq .faq-index__item {
  display: block;
  padding: 18px 16px 20px;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(160deg, rgba(14, 35, 64, .94), rgba(7, 20, 38, .58));
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius-m);
  transition: border-color .18s var(--ease), transform .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  border-color: var(--cyan);
  background: linear-gradient(160deg, rgba(14, 35, 64, 1), rgba(7, 20, 38, .72));
  transform: translateY(-2px);
}

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

.page-faq .faq-index__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-faq .faq-index__title {
  display: block;
  margin-top: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--fog);
}

.page-faq .faq-index__desc {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 48px);
  margin-top: clamp(36px, 6vw, 72px);
}

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

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

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--violet);
}

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

.page-faq .faq-toc__link {
  display: block;
  padding: 8px 10px;
  border-left: 2px solid transparent;
  border-radius: var(--radius-s);
  font-size: 14px;
  line-height: 1.5;
  color: var(--slate);
  text-decoration: none;
  transition: color .16s var(--ease), background .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .faq-toc__link .mono {
  color: var(--violet);
  margin-right: 6px;
}

.page-faq .faq-toc__link:hover {
  color: var(--fog);
  background: rgba(53, 224, 207, .08);
}

.page-faq .faq-toc__link[aria-current="true"] {
  color: var(--cyan);
  border-left-color: var(--amber);
  background: rgba(53, 224, 207, .1);
}

.page-faq .faq-toc__link[aria-current="true"] .mono {
  color: var(--amber);
}

/* ---------- 章节 ---------- */
.page-faq .faq-section + .faq-section {
  margin-top: clamp(40px, 6vw, 68px);
  padding-top: clamp(34px, 5vw, 56px);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-section__coord {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-section__title {
  margin: 12px 0 0;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.32;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-section__lede {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-subtitle {
  margin: clamp(28px, 4vw, 40px) 0 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--fog);
}

.page-faq .mono {
  font-family: var(--font-mono);
  font-size: .95em;
  color: var(--cyan-soft);
}

/* ---------- 四个维度 ---------- */
.page-faq .faq-dims {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--faq-rule);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-faq .faq-dims__item {
  padding: 20px 18px 22px;
  background: var(--space-950);
}

.page-faq .faq-dims__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-faq .faq-dims__name {
  margin: 9px 0 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--fog);
}

.page-faq .faq-dims__text {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-steps__item {
  counter-increment: faqstep;
  position: relative;
  padding-left: 46px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
}

.page-faq .faq-steps__item::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  border: 1px solid var(--line-cyan);
  border-radius: 50%;
  background: rgba(53, 224, 207, .06);
}

/* ---------- 图片容器 ---------- */
.page-faq .media-frame {
  margin: 30px 0 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--faq-rule);
  background: var(--space-900);
}

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

.page-faq .media-frame__caption {
  padding: 12px 16px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate);
  border-top: 1px solid var(--faq-rule);
  background: rgba(14, 35, 64, .55);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-acc {
  margin-top: 26px;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-acc__item {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-acc__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--fog);
  transition: color .16s var(--ease);
}

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

.page-faq .faq-acc__summary:hover {
  color: var(--cyan-soft);
}

.page-faq .faq-acc__summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 4px;
  border-radius: var(--radius-s);
}

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

.page-faq .faq-acc__sign {
  position: relative;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin-top: 4px;
}

.page-faq .faq-acc__sign::before,
.page-faq .faq-acc__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .18s var(--ease), background .18s var(--ease), opacity .18s var(--ease);
}

.page-faq .faq-acc__sign::before {
  left: 0;
  top: 9px;
  width: 20px;
  height: 2px;
}

.page-faq .faq-acc__sign::after {
  left: 9px;
  top: 0;
  width: 2px;
  height: 20px;
}

.page-faq .faq-acc__item[open] .faq-acc__sign::before {
  background: var(--amber);
}

.page-faq .faq-acc__item[open] .faq-acc__sign::after {
  background: var(--amber);
  opacity: 0;
  transform: scaleY(0);
}

.page-faq .faq-acc__body {
  padding: 0 0 20px 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

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

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

/* ---------- 设备排查 ---------- */
.page-faq .faq-devices {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px 26px;
  margin: 26px 0 0;
}

.page-faq .faq-devices__item {
  padding: 2px 0 2px 16px;
  border-left: 2px solid var(--line-cyan);
}

.page-faq .faq-devices__name {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--fog);
}

.page-faq .faq-devices__item p {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 反馈模板 ---------- */
.page-faq .faq-template {
  margin-top: 30px;
  padding: 22px 18px 24px;
  border: 1px dashed var(--faq-rule-mid);
  border-radius: var(--radius-m);
  background: linear-gradient(165deg, rgba(14, 35, 64, .78), rgba(7, 20, 38, .5));
}

.page-faq .faq-template__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--fog);
}

.page-faq .faq-template__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-template__list li {
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

.page-faq .faq-template__list .mono {
  display: inline-block;
  min-width: 8.5em;
  color: var(--cyan-soft);
}

.page-faq .faq-template__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-rule);
  font-size: 13px;
  line-height: 1.7;
  color: var(--violet);
}

/* ---------- 热门文档 ---------- */
.page-faq .faq-docs {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-docs__item {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-docs__link {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 15px 4px;
  text-decoration: none;
  color: var(--fog);
  transition: background .16s var(--ease);
}

.page-faq .faq-docs__link:hover,
.page-faq .faq-docs__link:focus-visible {
  background: rgba(53, 224, 207, .07);
}

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

.page-faq .faq-docs__tag {
  flex: 0 0 auto;
  padding: 2px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--violet);
  border: 1px solid var(--faq-rule-mid);
  border-radius: 999px;
}

.page-faq .faq-docs__name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  transition: color .16s var(--ease);
}

.page-faq .faq-docs__link:hover .faq-docs__name {
  color: var(--cyan);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(40px, 6vw, 68px);
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-l);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(53, 224, 207, .16), transparent 58%),
    linear-gradient(150deg, rgba(14, 35, 64, .96), rgba(7, 20, 38, .99));
}

.page-faq .faq-contact .faq-section__title {
  margin-top: 10px;
}

.page-faq .faq-contact__text {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-contact__rows {
  display: grid;
  gap: 8px;
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__rows p {
  margin: 0;
}

.page-faq .faq-contact__rows .mono {
  display: inline-block;
  min-width: 4em;
  color: var(--cyan);
}

.page-faq .faq-contact__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--amber);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

@media (min-width: 560px) {
  .page-faq .faq-index {
    grid-template-columns: 1fr 1fr;
  }
  .page-faq .faq-dims {
    grid-template-columns: 1fr 1fr;
  }
  .page-faq .faq-devices {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-faq .faq-shell {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
  .page-faq .faq-toc {
    display: block;
    position: sticky;
    top: 92px;
    align-self: start;
    padding: 18px 14px;
    border: 1px solid var(--faq-rule);
    border-radius: var(--radius-m);
    background: rgba(14, 35, 64, .52);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item,
  .page-faq .faq-docs__link,
  .page-faq .faq-toc__link,
  .page-faq .faq-acc__sign::before,
  .page-faq .faq-acc__sign::after,
  .page-faq .faq-acc__summary {
    transition: none;
  }
  .page-faq .faq-index__item:hover {
    transform: none;
  }
}
<<<END>>>