.page-faq {
  display: block;
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
}

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

.page-faq a {
  color: var(--signal-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 179, 122, 0.35);
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-faq a:hover {
  color: var(--paper);
  border-bottom-color: var(--signal);
}

/* 面包屑 */
.page-faq .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .crumbs a {
  border-bottom: none;
  color: var(--mist);
}

.page-faq .crumbs a:hover {
  color: var(--signal-soft);
}

.page-faq .crumbs [aria-current="page"] {
  color: var(--paper);
}

/* 首屏 */
.page-faq .support-hero {
  position: relative;
  isolation: isolate;
  margin-top: 18px;
  padding: 40px 0 44px;
  background: var(--ink-800);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-faq .support-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
  filter: grayscale(0.4) contrast(1.05);
}

.page-faq .support-hero__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  display: block;
  background:
    linear-gradient(180deg, rgba(4, 7, 14, 0.55) 0%, rgba(4, 7, 14, 0.9) 62%, var(--ink-800) 100%),
    repeating-linear-gradient(90deg, rgba(34, 69, 111, 0.35) 0 1px, transparent 1px 96px);
  pointer-events: none;
}

.page-faq .support-hero__inner {
  position: relative;
}

.page-faq .support-hero__anno {
  color: var(--signal);
  margin: 0 0 14px;
}

.page-faq .support-hero__title {
  margin: 0;
  max-width: 18em;
  letter-spacing: -0.01em;
}

.page-faq .support-hero__lede {
  margin: 18px 0 0;
  color: var(--mist);
}

.page-faq .support-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .support-hero__quick a {
  border-bottom: none;
}

/* 状态看板 */
.page-faq .status-board {
  padding: 44px 0 8px;
  background: var(--ink-900);
}

.page-faq .status-board__head {
  margin-bottom: 24px;
}

.page-faq .status-board__head h2 {
  margin: 8px 0 10px;
}

.page-faq .status-board__note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 13px;
}

.page-faq .status-board__note .status-dot {
  margin-right: 2px;
}

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

.page-faq .status-card {
  position: relative;
  padding: 20px 20px 22px;
  background: var(--ink-700);
  border: 1px solid var(--line-hair);
  border-left-width: 4px;
  border-left-style: solid;
  transition: transform 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-faq .status-card--warn {
  border-left-color: var(--amber);
}

.page-faq .status-card--live {
  border-left-color: var(--pitch);
}

.page-faq .status-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-soft);
  border-left-color: inherit;
}

.page-faq .status-card--warn:hover {
  border-left-color: var(--amber);
}

.page-faq .status-card--live:hover {
  border-left-color: var(--pitch);
}

.page-faq .status-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 12px;
  font-size: 12px;
}

.page-faq .status-card__code {
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .status-card__title {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .status-card__body {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .status-card__fix {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-hair);
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .status-card__key {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-900);
  background: var(--signal);
}

/* 分类索引 */
.page-faq .cat-index {
  padding: 34px 0 6px;
  background: var(--ink-900);
}

.page-faq .cat-index__lead {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-faq .cat-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .cat-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 14px;
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
  transition: border-color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .cat-index__link:hover {
  border-color: var(--signal);
  background: var(--ink-700);
}

.page-faq .cat-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--signal);
}

.page-faq .cat-index__name {
  flex: 1 1 auto;
  font-size: 15px;
  color: var(--paper);
}

.page-faq .cat-index__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}

/* 问答 */
.page-faq .faq-stack {
  padding: 36px 0 12px;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--hdr-h) + 20px);
  padding: 30px 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-group:first-child {
  border-top: none;
  padding-top: 8px;
}

.page-faq .faq-group__head {
  margin-bottom: 10px;
}

.page-faq .faq-group__head h2 {
  margin: 8px 0 10px;
}

.page-faq .faq-group__intro {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
}

.page-faq .faq-list {
  margin-top: 6px;
}

.page-faq .qa {
  border-top: 1px solid var(--line-hair);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--paper);
  transition: color 0.16s var(--ease);
}

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

.page-faq .qa__q:hover {
  color: var(--signal-soft);
}

.page-faq .qa__qtext {
  flex: 1 1 auto;
}

.page-faq .qa__arrow {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 9px;
  border-right: 2px solid var(--signal);
  border-bottom: 2px solid var(--signal);
  transform: rotate(45deg);
  transition: transform 0.16s var(--ease);
}

.page-faq .qa[open] .qa__arrow {
  transform: rotate(-135deg);
}

.page-faq .qa[open] .qa__q {
  color: var(--signal-soft);
}

.page-faq .qa__a {
  padding: 0 0 20px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

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

/* 五步排查 */
.page-faq .triage {
  padding: 44px 0;
  background: var(--ink-800);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .triage__head {
  margin-bottom: 28px;
}

.page-faq .triage__head h2 {
  margin: 8px 0 10px;
}

.page-faq .triage__intro {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.8;
}

.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .step {
  position: relative;
  display: flex;
  gap: 14px;
  padding-bottom: 26px;
}

.page-faq .step:last-child {
  padding-bottom: 0;
}

.page-faq .step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 34px;
  bottom: 2px;
  width: 1px;
  background: var(--line-soft);
}

.page-faq .step__num {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--signal);
  background: var(--ink-900);
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 13px;
  position: relative;
  z-index: 1;
}

.page-faq .step__body {
  padding-top: 2px;
}

.page-faq .step__title {
  margin: 0 0 6px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .step__body p {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 设备对照 */
.page-faq .devices {
  padding: 44px 0;
  background: var(--ink-900);
}

.page-faq .devices__grid {
  display: grid;
  gap: 28px;
}

.page-faq .devices__text h2 {
  margin: 8px 0 12px;
}

.page-faq .devices__intro {
  margin: 0 0 20px;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
}

.page-faq .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
}

.page-faq .device-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .device-table caption {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
  border-bottom: 1px solid var(--line-hair);
}

.page-faq .device-table thead th {
  padding: 11px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--mist);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .device-table tbody th {
  padding: 14px;
  text-align: left;
  font-weight: 600;
  color: var(--paper);
  border-bottom: 1px solid var(--line-hair);
  white-space: nowrap;
}

.page-faq .device-table td {
  padding: 14px;
  color: var(--mist);
  line-height: 1.7;
  border-bottom: 1px solid var(--line-hair);
  vertical-align: top;
}

.page-faq .device-table tbody tr:last-child th,
.page-faq .device-table tbody tr:last-child td {
  border-bottom: none;
}

.page-faq .state {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-faq .state--ok {
  color: var(--ink-900);
  background: var(--pitch);
}

.page-faq .state--warn {
  color: var(--ink-900);
  background: var(--amber);
}

.page-faq .devices__more {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--mist);
}

.page-faq .devices__figure {
  margin: 0;
}

.page-faq .devices__figure .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-soft);
}

.page-faq .devices__figure .figure__cap {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* 反馈通道 */
.page-faq .escalate {
  padding: 0 0 52px;
  background: var(--ink-900);
}

.page-faq .escalate__panel {
  display: grid;
  gap: 0;
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
}

.page-faq .escalate__main {
  padding: 28px 22px;
}

.page-faq .escalate__main h2 {
  margin: 8px 0 12px;
}

.page-faq .escalate__lede {
  margin: 0 0 20px;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .checklist {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .checklist li {
  padding-left: 16px;
  border-left: 2px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .checklist__k {
  display: block;
  color: var(--paper);
  font-weight: 600;
}

.page-faq .escalate__links {
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-hair);
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .escalate__contact {
  padding: 26px 22px;
  background: var(--ink-700);
  border-top: 1px solid var(--line-soft);
}

.page-faq .escalate__contact-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--signal);
}

.page-faq .touch {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-faq .touch__row {
  display: grid;
  gap: 3px;
}

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

.page-faq .touch__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .escalate__contact-note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-hair);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-faq .cat-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 880px) {
  .page-faq .support-hero {
    padding: 64px 0 68px;
  }

  .page-faq .status-board__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .cat-index__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .cat-index__link {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 16px 14px;
  }

  .page-faq .cat-index__count {
    align-self: flex-end;
  }

  .page-faq .devices__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
    gap: 32px;
  }

  .page-faq .escalate__panel {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }

  .page-faq .escalate__main {
    padding: 36px 32px;
  }

  .page-faq .escalate__contact {
    padding: 36px 28px;
    border-top: none;
    border-left: 1px solid var(--line-soft);
  }

  .page-faq .step {
    gap: 20px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-group {
    padding: 36px 0;
  }

  .page-faq .device-table {
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .status-card,
  .page-faq .cat-index__link,
  .page-faq .qa__q,
  .page-faq .qa__arrow {
    transition: none;
  }

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