.page-faq {
  --faq-edge: rgba(148, 163, 156, .28);
  --faq-line: rgba(148, 163, 156, .46);
  --faq-amber-soft: rgba(255, 209, 102, .1);
  padding-bottom: 72px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 22px;
  padding-block: 24px 40px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mint);
}

.page-faq .faq-hero__sub {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cold);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__panel {
  border: 2px solid var(--faq-line);
  background: var(--coal);
  box-shadow: var(--shadow-hard);
  padding: 18px 16px;
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
  border-bottom: 1px solid var(--faq-edge);
  padding-bottom: 10px;
}

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

.page-faq .faq-quick__item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border: 2px solid var(--faq-edge);
  background: var(--surface-2);
  text-decoration: none;
  transition: transform .16s ease, border-color .16s ease;
}

.page-faq .faq-quick__item:hover,
.page-faq .faq-quick__item:focus-visible {
  transform: translateX(4px);
  border-color: var(--orange);
}

.page-faq .faq-quick__no {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--orange);
  padding-top: 2px;
}

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

.page-faq .faq-quick__t {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--fog);
  line-height: 1.5;
}

.page-faq .faq-quick__d {
  display: block;
  font-size: 13px;
  color: var(--cold);
  line-height: 1.6;
}

.page-faq .faq-hero__panel-foot {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cold);
  border-top: 1px dashed var(--faq-edge);
  padding-top: 12px;
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 28px;
  padding-block: 4px 8px;
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cold);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--faq-edge);
}

.page-faq .faq-index__list li a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-left: -2px;
  padding: 11px 0 11px 14px;
  border-left: 2px solid transparent;
  color: var(--cold);
  font-size: 14px;
  text-decoration: none;
  transition: color .16s ease, border-color .16s ease, background .16s ease;
}

.page-faq .faq-index__list li a .mono {
  font-size: 12px;
  color: var(--cold);
}

.page-faq .faq-index__list li a:hover,
.page-faq .faq-index__list li a:focus-visible {
  color: var(--fog);
  border-left-color: var(--orange);
  background: linear-gradient(90deg, rgba(255, 107, 44, .14), transparent 70%);
}

.page-faq .faq-index__list li a:hover .mono,
.page-faq .faq-index__list li a:focus-visible .mono {
  color: var(--orange);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding-block: 26px 0;
}

.page-faq .faq-sec + .faq-sec {
  margin-top: 30px;
  border-top: 1px solid var(--faq-edge);
  padding-top: 32px;
}

.page-faq .faq-sec__no {
  display: inline-block;
  margin: 0 0 14px;
  padding: 3px 9px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
  background: var(--coal);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-sec__lead {
  margin: 12px 0 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cold);
}

.page-faq .faq-sec__note {
  margin: 22px 0 0;
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cold);
  background: var(--surface-2);
  border-left: 4px solid var(--mint);
}

.page-faq .faq-sec__note a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 安卓三步 ---------- */
.page-faq .faq-sec__split {
  display: grid;
  gap: 20px;
  margin-top: 22px;
}

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

.page-faq .faq-steps__item {
  border: 2px solid var(--faq-edge);
  border-left: 6px solid var(--orange);
  background: var(--surface);
  padding: 16px 16px 16px 18px;
}

.page-faq .faq-steps__item:nth-child(2) {
  margin-left: 12px;
}

.page-faq .faq-steps__item:nth-child(3) {
  margin-left: 24px;
}

.page-faq .faq-steps__no {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-faq .faq-steps__item h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.page-faq .faq-steps__item p {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--fog);
}

.page-faq .faq-steps__res {
  margin: 10px 0 0 !important;
  padding: 10px 12px;
  background: var(--coal);
  border-left: 2px solid var(--mint);
  font-size: 13.5px !important;
  line-height: 1.75;
  color: var(--cold) !important;
}

.page-faq .faq-steps__res strong {
  color: var(--mint);
  font-weight: 700;
}

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

.page-faq .faq-sec__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 700;
  object-fit: cover;
  border: 2px solid var(--faq-line);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-sec__fig figcaption {
  margin-top: 12px;
  padding-left: 10px;
  border-left: 2px solid var(--orange);
  font-size: 13px;
  line-height: 1.7;
  color: var(--cold);
}

/* ---------- 表格 ---------- */
.page-faq .faq-table__wrap {
  margin-top: 20px;
  overflow-x: auto;
  border: 2px solid var(--faq-edge);
  background: var(--coal);
}

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

.page-faq .faq-table caption {
  padding: 10px 12px;
  text-align: left;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
  background: var(--surface-2);
  border-bottom: 1px solid var(--faq-edge);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--faq-edge);
}

.page-faq .faq-table th {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--cold);
  background: var(--surface-2);
  white-space: nowrap;
}

.page-faq .faq-table td {
  color: var(--fog);
  line-height: 1.6;
}

.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table tbody tr:hover td {
  background: rgba(59, 240, 196, .06);
}

.page-faq .faq-table td.mono {
  color: var(--amber);
  white-space: nowrap;
}

/* ---------- V4 四维 ---------- */
.page-faq .faq-v4 {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-v4__item {
  border: 2px solid var(--faq-edge);
  background: var(--coal);
  padding: 16px;
}

.page-faq .faq-v4__no {
  display: block;
  margin-bottom: 6px;
  font-size: 22px;
  line-height: 1;
  color: var(--orange);
  letter-spacing: .04em;
}

.page-faq .faq-v4__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.page-faq .faq-v4__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cold);
}

/* ---------- 三态 ---------- */
.page-faq .faq-states {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-states__item {
  border: 2px solid var(--faq-edge);
  border-top-width: 6px;
  background: var(--surface-2);
  padding: 16px;
}

.page-faq .faq-states__item--ok {
  border-top-color: var(--mint);
}

.page-faq .faq-states__item--limit {
  border-top-color: var(--amber);
}

.page-faq .faq-states__item--down {
  border-top-color: var(--brick);
}

.page-faq .faq-states__dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-bottom: 10px;
  background: var(--cold);
  animation: faq-dot-pulse 2.4s ease-in-out infinite;
}

.page-faq .faq-states__item--ok .faq-states__dot {
  background: var(--mint);
}

.page-faq .faq-states__item--limit .faq-states__dot {
  background: var(--amber);
}

.page-faq .faq-states__item--down .faq-states__dot {
  background: var(--brick);
}

.page-faq .faq-states__item h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.page-faq .faq-states__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cold);
}

@keyframes faq-dot-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.85); }
}

/* ---------- 归档 ---------- */
.page-faq .faq-archive {
  margin-top: 44px;
  padding-block: 36px 44px;
  background-color: var(--coal);
  background-image: repeating-linear-gradient(114deg, rgba(59, 240, 196, .055) 0 2px, transparent 2px 28px);
  border-top: 2px solid var(--faq-line);
  border-bottom: 2px solid var(--faq-line);
}

.page-faq .faq-archive__banner {
  margin-bottom: 26px;
}

.page-faq .faq-archive__banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 500;
  object-fit: cover;
  border: 2px solid var(--faq-line);
}

.page-faq .seg__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
}

.page-faq .seg__btn {
  min-height: 44px;
  padding: 0 16px;
  font: inherit;
  font-size: 14px;
  color: var(--fog);
  background: var(--surface-2);
  border: 2px solid var(--faq-line);
  cursor: pointer;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}

.page-faq .seg__btn:hover,
.page-faq .seg__btn:focus-visible {
  border-color: var(--orange);
}

.page-faq .seg__btn[aria-selected="true"] {
  background: var(--orange);
  color: var(--rail);
  border-color: var(--orange);
  font-weight: 700;
}

.page-faq .seg__panel {
  margin-top: 16px;
}

.page-faq .seg__panel .faq-table__wrap {
  margin-top: 0;
}

.page-faq .faq-archive__note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cold);
}

.page-faq .faq-archive__note a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help {
  padding-block: 44px 0;
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 20px;
  padding: 22px 18px;
  border: 2px solid var(--orange);
  background: var(--surface);
  box-shadow: var(--shadow-flare);
}

.page-faq .faq-help__inner h2 {
  margin: 0 0 14px;
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-help__list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
}

.page-faq .faq-help__list .mono {
  flex: 0 0 auto;
  display: inline-block;
  min-width: 22px;
  padding: 1px 5px;
  text-align: center;
  font-size: 11px;
  color: var(--rail);
  background: var(--amber);
}

.page-faq .faq-help__contact {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--fog);
  word-break: break-word;
}

.page-faq .faq-help__contact a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 240, 196, .5);
}

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

.page-faq .faq-help__inner > .btn {
  justify-self: start;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-v4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 32px;
    align-items: start;
    padding-block: 40px 56px;
  }

  .page-faq .faq-sec__split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    gap: 24px;
    align-items: start;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 30px 28px;
  }

  .page-faq .faq-help__inner > .btn {
    justify-self: end;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: 226px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }
}

@media (max-width: 559px) {
  .page-faq .faq-steps__item:nth-child(2),
  .page-faq .faq-steps__item:nth-child(3) {
    margin-left: 0;
  }

  .page-faq .faq-hero__actions .btn {
    flex: 1 1 auto;
  }

  .page-faq .faq-sec__no {
    font-size: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__item,
  .page-faq .faq-index__list li a,
  .page-faq .seg__btn {
    transition: none;
  }

  .page-faq .faq-states__dot {
    animation: none;
  }
}
<<<END>>>