.page-faq {
  --faq-side: 264px;
  --faq-sec-gap: clamp(56px, 7vw, 104px);
  background: var(--c-garage);
  color: var(--c-silver);
  font-family: var(--font-body);
  padding-bottom: clamp(56px, 8vw, 112px);
  overflow-x: clip;
}

.page-faq a {
  text-decoration: none;
  color: var(--c-blue);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: 2px;
}

.page-faq .crumb {
  padding-top: calc(var(--header-h) + 18px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-dim);
}

.page-faq .crumb a {
  color: var(--c-silver);
}

.page-faq .crumb__sep {
  padding: 0 8px;
  color: var(--c-line);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: 20px 0 clamp(44px, 6vw, 80px);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 84% 0%, rgba(19, 90, 140, 0.55), transparent 62%),
    linear-gradient(200deg, rgba(79, 184, 255, 0.14), transparent 46%);
  clip-path: polygon(0 0, 100% 0, 100% 74%, 0 100%);
}

.page-faq .faq-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 52, 62, 0.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 52, 62, 0.6) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.45;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 88%);
  mask-image: linear-gradient(180deg, #000, transparent 88%);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero__main .display {
  font-family: var(--font-display);
  font-size: clamp(32px, 7.6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--c-white);
  margin: 10px 0 18px;
  max-width: 16em;
}

.page-faq .faq-hero__main .lede {
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-silver);
  margin: 0 0 26px;
}

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

.page-faq .faq-hero__panel {
  border: 1px solid var(--c-line);
  background: var(--c-carbon);
  box-shadow: var(--shadow-soft);
  padding: 18px 20px 20px;
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-dim);
  text-transform: uppercase;
}

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

.page-faq .faq-kv__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(42, 52, 62, 0.7);
}

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

.page-faq .faq-kv dt {
  font-size: 13px;
  color: var(--c-dim);
}

.page-faq .faq-kv dd {
  margin: 0;
  font-size: 13px;
  color: var(--c-silver);
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--c-white);
  margin-right: 4px;
}

/* ---------- 步骤条 ---------- */
.page-faq .faq-steps {
  background: var(--c-carbon);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  padding: clamp(40px, 6vw, 72px) 0;
  margin-bottom: var(--faq-sec-gap);
}

.page-faq .faq-head {
  margin-bottom: 34px;
}

.page-faq .faq-h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--c-white);
  margin: 8px 0 12px;
  max-width: 22em;
}

.page-faq .faq-intro {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-silver);
}

.page-faq .stepbar {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 32px;
}

.page-faq .stepbar__item {
  position: relative;
  padding-left: 58px;
  border-left: 1px solid var(--c-line);
  padding-bottom: 4px;
}

.page-faq .stepbar__num {
  position: absolute;
  left: -22px;
  top: 0;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  background: var(--c-garage);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-blue);
}

.page-faq .stepbar__title {
  margin: 6px 0 10px;
  font-size: 17px;
  font-weight: 600;
  color: var(--c-white);
}

.page-faq .stepbar__do,
.page-faq .stepbar__check {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-silver);
}

.page-faq .stepbar__check {
  color: var(--c-dim);
}

.page-faq .stepbar__link {
  display: inline-block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  border-bottom: 1px solid rgba(79, 184, 255, 0.4);
}

.page-faq .notice {
  margin: 32px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--c-orange);
  background: rgba(255, 138, 43, 0.06);
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-silver);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 40px;
}

.page-faq .faq-toc {
  border: 1px solid var(--c-line);
  background: var(--c-carbon);
  padding: 16px 18px 18px;
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-dim);
}

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

.page-faq .faq-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  font-size: 13.5px;
  color: var(--c-silver);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  border-left-color: var(--c-blue);
  background: var(--c-steel);
  color: var(--c-white);
}

.page-faq .faq-toc__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-dim);
}

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

.page-faq .faq-sec {
  margin-bottom: var(--faq-sec-gap);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

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

.page-faq .faq-body .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-blue);
  margin: 0;
}

/* ---------- 分流 SVG ---------- */
.page-faq .branch-figure {
  margin: 26px 0 30px;
  border: 1px solid var(--c-line);
  background:
    linear-gradient(160deg, rgba(19, 90, 140, 0.16), transparent 60%),
    var(--c-carbon);
  padding: 16px 12px;
}

.page-faq .branch-svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 四种情形 ---------- */
.page-faq .case-grid {
  display: grid;
  gap: 14px;
}

.page-faq .case {
  border: 1px solid var(--c-line);
  background: var(--c-steel);
  padding: 18px 18px 20px;
  transition: border-color 0.2s var(--ease);
}

.page-faq .case:hover {
  border-color: rgba(79, 184, 255, 0.45);
}

.page-faq .case__no {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-blue);
}

.page-faq .case__title {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 600;
  color: var(--c-white);
}

.page-faq .case__dl {
  margin: 0;
  display: grid;
  gap: 4px;
}

.page-faq .case__dl dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-dim);
  margin-top: 6px;
}

.page-faq .case__dl dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-silver);
}

/* ---------- 焕新版登录 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 26px;
  margin-top: 24px;
}

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

.page-faq .cause-list__item {
  border-left: 1px solid var(--c-line);
  padding: 4px 0 4px 18px;
}

.page-faq .cause-list__no {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-blue);
}

.page-faq .cause-list__title {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--c-white);
}

.page-faq .cause-list__sign,
.page-faq .cause-list__fix {
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-silver);
}

.page-faq .cause-list__fix {
  color: var(--c-dim);
}

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

.page-faq .faq-figure .media {
  border: 1px solid var(--c-line);
  background: var(--c-carbon);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-faq .faq-figure--wide {
  margin: 24px 0 26px;
}

.page-faq .faq-figure__cap {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--c-dim);
}

/* ---------- 内核表格 ---------- */
.page-faq .kernel-scroll {
  overflow-x: auto;
  border: 1px solid var(--c-line);
  background: var(--c-carbon);
  -webkit-overflow-scrolling: touch;
}

.page-faq .kernel-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-faq .kernel-table__cap {
  caption-side: top;
  text-align: left;
  padding: 14px 16px 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--c-dim);
}

.page-faq .kernel-table thead th {
  text-align: left;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-dim);
  border-bottom: 1px solid var(--c-line);
  white-space: nowrap;
}

.page-faq .kernel-table tbody th {
  text-align: left;
  padding: 11px 16px;
  font-weight: 500;
  color: var(--c-white);
  border-bottom: 1px solid rgba(42, 52, 62, 0.6);
}

.page-faq .kernel-table tbody td {
  padding: 11px 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-silver);
  border-bottom: 1px solid rgba(42, 52, 62, 0.6);
  white-space: nowrap;
}

.page-faq .kernel-table tbody tr:nth-child(even) {
  background: rgba(22, 29, 37, 0.55);
}

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

.page-faq .t-state {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid currentColor;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .t-state--ok {
  color: var(--c-blue);
}

.page-faq .t-state--up {
  color: var(--c-silver);
}

.page-faq .t-state--change {
  color: var(--c-orange);
}

.page-faq .kernel-note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-dim);
}

/* ---------- 升级求助 ---------- */
.page-faq .submit-list {
  list-style: none;
  margin: 26px 0 28px;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-faq .submit-list__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.page-faq .submit-list__no {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-blue);
}

.page-faq .submit-list__item h3 {
  margin: 2px 0 4px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--c-white);
}

.page-faq .submit-list__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-dim);
}

.page-faq .escalate-bar {
  display: grid;
  gap: 20px;
  padding: 22px 20px;
  border: 1px solid var(--c-line);
  background:
    linear-gradient(120deg, rgba(19, 90, 140, 0.24), transparent 62%),
    var(--c-steel);
}

.page-faq .escalate-bar__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--c-dim);
}

.page-faq .escalate-bar__mail {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(14px, 3.4vw, 19px);
  color: var(--c-white);
  border-bottom: 1px solid rgba(79, 184, 255, 0.55);
  word-break: break-all;
}

.page-faq .escalate-bar__note {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-silver);
}

.page-faq .escalate-bar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-start;
}

/* ---------- 手风琴 ---------- */
.page-faq .acc {
  margin-top: 24px;
  border-top: 1px solid var(--c-line);
}

.page-faq .acc__item {
  border-bottom: 1px solid var(--c-line);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .acc__sum {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 6px 18px 0;
  cursor: pointer;
  list-style: none;
  transition: background 0.18s var(--ease), padding-left 0.18s var(--ease);
}

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

.page-faq .acc__sum:hover {
  background: rgba(22, 29, 37, 0.6);
  padding-left: 10px;
}

.page-faq .acc__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-dim);
}

.page-faq .acc__q {
  flex: 1 1 auto;
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--c-white);
}

.page-faq .acc__mark {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  position: relative;
  align-self: center;
}

.page-faq .acc__mark::before,
.page-faq .acc__mark::after {
  content: "";
  position: absolute;
  background: var(--c-blue);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.page-faq .acc__mark::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 1.5px;
}

.page-faq .acc__mark::after {
  left: 5px;
  top: 0;
  width: 1.5px;
  height: 12px;
}

.page-faq .acc__item[open] .acc__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .acc__item[open] {
  border-left: 3px solid var(--c-blue);
  padding-left: 14px;
}

.page-faq .acc__body {
  padding: 2px 20px 22px 44px;
}

.page-faq .acc__body p {
  margin: 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-silver);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--c-line);
  background: var(--c-carbon);
  padding: clamp(36px, 6vw, 64px) 0;
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 22px;
}

.page-faq .faq-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(23px, 4vw, 34px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--c-white);
  max-width: 20em;
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-dim);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-faq .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .submit-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 28px;
  }
}

@media (min-width: 900px) {
  .page-faq .crumb {
    padding-top: 34px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-hero__main .lede {
    font-size: 17px;
  }

  .page-faq .stepbar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-faq .stepbar__item {
    border-left: 0;
    border-top: 1px solid var(--c-line);
    padding-left: 0;
    padding-top: 56px;
  }

  .page-faq .stepbar__num {
    left: 0;
    top: -22px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .escalate-bar {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 26px 28px;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-side) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 32px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-hero__main .display {
    font-size: clamp(48px, 5vw, 78px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}