.page-faq {
  --faq-dim: rgba(11, 13, 18, 0.72);
  --faq-line: rgba(11, 13, 18, 0.14);
  background: var(--c-warm);
  color: var(--c-ink);
  font-family: var(--font-body);
  padding-bottom: clamp(3rem, 7vw, 6rem);
  overflow-x: hidden;
}

.page-faq a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 13, 18, 0.3);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

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

.page-faq .breadcrumb {
  padding-top: clamp(1rem, 2.5vw, 1.75rem);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(1rem, 2.5vw, 2rem);
  padding: clamp(1.75rem, 4.5vw, 3.5rem) clamp(1.25rem, 4vw, 3.25rem) clamp(1.35rem, 3vw, 2.25rem);
  background:
    radial-gradient(130% 150% at 92% -10%, rgba(59, 42, 107, 0.9) 0%, rgba(36, 26, 74, 0) 58%),
    linear-gradient(160deg, var(--c-space) 0%, #08121f 100%);
  border: var(--line-mid);
  color: var(--c-warm);
  overflow: hidden;
}

.page-faq .faq-hero::before,
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1px solid rgba(245, 241, 232, 0.45);
  pointer-events: none;
}

.page-faq .faq-hero::before {
  top: 12px;
  left: 12px;
  border-right: 0;
  border-bottom: 0;
}

.page-faq .faq-hero::after {
  right: 12px;
  bottom: 12px;
  border-top: 0;
  border-left: 0;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--c-signal);
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(1.9rem, 6vw, 3.75rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: clamp(1.1rem, 2.5vw, 1.85rem) 0 0;
  max-width: 60ch;
  font-size: clamp(0.9rem, 1.5vw, 1.0625rem);
  line-height: 1.85;
  color: rgba(245, 241, 232, 0.8);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.15rem, 4vw, 3.25rem);
  margin: clamp(1.35rem, 3vw, 2.1rem) 0 0;
  padding: clamp(0.95rem, 2.5vw, 1.4rem) 0 0;
  border-top: 1px solid rgba(245, 241, 232, 0.22);
  list-style: none;
}

.page-faq .faq-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(1rem, 2.2vw, 1.4rem);
  letter-spacing: 0.02em;
  color: var(--c-mint);
}

.page-faq .faq-hero__lab {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(245, 241, 232, 0.6);
}

/* ---------- 快速排查 ---------- */
.page-faq .faq-triage {
  margin-top: clamp(2.25rem, 6vw, 4.5rem);
  padding: clamp(1.85rem, 5vw, 4rem) 0;
  background: linear-gradient(180deg, var(--c-teal) 0%, #0a2b2a 100%);
  color: var(--c-warm);
}

.page-faq .faq-triage .eyebrow {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--c-signal);
}

.page-faq .faq-triage h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.6vw, 2.35rem);
  line-height: 1.28;
  color: var(--c-warm);
}

.page-faq .faq-triage__lead {
  margin: 0.95rem 0 0;
  max-width: 58ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(245, 241, 232, 0.76);
}

.page-faq .triage-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(1.6rem, 4vw, 2.6rem) 0 0;
  padding: 0;
  list-style: none;
  background: rgba(201, 208, 220, 0.22);
  border: 1px solid rgba(201, 208, 220, 0.22);
}

.page-faq .triage-step {
  position: relative;
  padding: clamp(1.1rem, 2.4vw, 1.65rem);
  background: rgba(10, 26, 47, 0.42);
}

.page-faq .triage-step__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--c-signal);
}

.page-faq .triage-step h3 {
  margin: 0.55rem 0 0.45rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--c-warm);
}

.page-faq .triage-step p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.78;
  color: rgba(245, 241, 232, 0.7);
}

.page-faq .triage-step a {
  color: var(--c-mint);
  border-bottom-color: rgba(111, 227, 182, 0.45);
}

.page-faq .triage-step a:hover {
  color: var(--c-mint);
  border-bottom-color: var(--c-mint);
}

.page-faq .faq-triage__figure {
  margin: clamp(1.6rem, 4vw, 2.6rem) 0 0;
}

.page-faq .faq-triage__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  object-position: center;
  background: var(--c-space);
  border: 1px solid rgba(201, 208, 220, 0.26);
}

.page-faq .faq-triage__figure figcaption {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: rgba(245, 241, 232, 0.52);
}

/* ---------- 索引 + 问答 ---------- */
.page-faq .faq-body {
  padding-top: clamp(2.25rem, 6vw, 4.5rem);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.65rem, 4vw, 3.25rem);
}

.page-faq .faq-index {
  order: 2;
  padding: clamp(1rem, 2.4vw, 1.55rem);
  background: linear-gradient(175deg, var(--c-nebula) 0%, var(--c-indi) 100%);
  border: 1px solid rgba(201, 208, 220, 0.24);
  color: var(--c-warm);
}

.page-faq .faq-content {
  order: 1;
  min-width: 0;
}

.page-faq .faq-index__figure {
  margin: 0 0 1.15rem;
  overflow: hidden;
  border: 1px solid rgba(201, 208, 220, 0.24);
}

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 190px;
  object-fit: cover;
}

.page-faq .faq-index__title {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  color: var(--c-warm);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 0.12rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.48rem 0.4rem;
  border: 0;
  border-left: 2px solid transparent;
  font-size: 0.875rem;
  line-height: 1.5;
  color: rgba(245, 241, 232, 0.8);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-index__list a:hover {
  color: var(--c-warm);
  border-left-color: var(--c-signal);
  background: rgba(255, 122, 51, 0.12);
}

.page-faq .faq-index__list .mono {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--c-signal);
}

.page-faq .faq-index__note {
  margin-top: 1.05rem;
  padding-top: 0.95rem;
  border-top: 1px solid rgba(201, 208, 220, 0.24);
}

.page-faq .faq-led {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--c-mint);
}

.page-faq .faq-led__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-mint);
  animation: faq-led-pulse 2.6s var(--ease) infinite;
}

.page-faq .faq-index__note p {
  margin: 0.55rem 0 0;
  font-size: 0.78rem;
  line-height: 1.72;
  color: rgba(245, 241, 232, 0.64);
}

.page-faq .faq-index__foot {
  margin: 0.95rem 0 0;
  font-size: 0.72rem;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.52);
}

.page-faq .faq-index__foot a {
  color: var(--c-mint);
  border-bottom-color: rgba(111, 227, 182, 0.45);
}

.page-faq .faq-index__foot a:hover {
  color: var(--c-mint);
  border-bottom-color: var(--c-mint);
}

@keyframes faq-led-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(111, 227, 182, 0.55); }
  50% { box-shadow: 0 0 0 5px rgba(111, 227, 182, 0); }
}

/* ---------- 筛选 ---------- */
.page-faq .faq-filter {
  position: relative;
}

.page-faq .faq-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.page-faq .faq-filter__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: clamp(1.15rem, 3vw, 1.85rem);
}

.page-faq .faq-filter__cap {
  margin-right: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: rgba(11, 13, 18, 0.52);
}

.page-faq .faq-chip {
  display: inline-block;
  padding: 0.42rem 0.85rem;
  border: 1px solid rgba(11, 13, 18, 0.2);
  font-size: 0.8125rem;
  line-height: 1.4;
  color: rgba(11, 13, 18, 0.7);
  cursor: pointer;
  background: transparent;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-faq .faq-chip:hover {
  border-color: var(--c-signal);
  color: var(--c-signal);
}

.page-faq .faq-filter__input:focus-visible ~ .faq-filter__bar {
  outline: 2px solid var(--c-signal);
  outline-offset: 3px;
}

.page-faq #flt-all:checked ~ .faq-filter__bar [for="flt-all"],
.page-faq #flt-login:checked ~ .faq-filter__bar [for="flt-login"],
.page-faq #flt-entry:checked ~ .faq-filter__bar [for="flt-entry"],
.page-faq #flt-tag:checked ~ .faq-filter__bar [for="flt-tag"],
.page-faq #flt-data:checked ~ .faq-filter__bar [for="flt-data"] {
  background: var(--c-space);
  border-color: var(--c-space);
  color: var(--c-warm);
}

.page-faq #flt-login:checked ~ .faq-groups > .faq-group:not([data-cat="login"]),
.page-faq #flt-entry:checked ~ .faq-groups > .faq-group:not([data-cat="entry"]),
.page-faq #flt-tag:checked ~ .faq-groups > .faq-group:not([data-cat="tag"]),
.page-faq #flt-data:checked ~ .faq-groups > .faq-group:not([data-cat="data"]) {
  display: none;
}

/* ---------- 问答组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 1.5rem;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(1.9rem, 4vw, 3rem);
}

.page-faq .faq-group__head {
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(11, 13, 18, 0.24);
}

.page-faq .faq-group__head .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--c-signal);
}

.page-faq .faq-group__head h2 {
  margin: 0.35rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.6vw, 1.6rem);
  line-height: 1.32;
}

.page-faq .faq-group__head p {
  margin: 0.5rem 0 0;
  max-width: 58ch;
  font-size: 0.875rem;
  line-height: 1.78;
  color: var(--faq-dim);
}

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

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-item:hover {
  border-bottom-color: rgba(255, 122, 51, 0.65);
}

.page-faq .faq-item:has(details[open]) {
  border-bottom-color: var(--c-signal);
  background: rgba(255, 122, 51, 0.045);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 1rem 0.2rem 1rem 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--c-ink);
  transition: color 0.25s var(--ease);
}

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

.page-faq .faq-item summary:hover {
  color: var(--c-signal);
}

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

.page-faq .faq-item__no {
  flex: none;
  min-width: 2.1em;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--c-signal);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  margin-left: 0.4rem;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.05rem;
  line-height: 1;
  color: var(--c-signal);
  transition: transform 0.25s var(--ease);
}

.page-faq .faq-item details[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-item__a {
  max-width: 66ch;
  padding: 0 0.2rem 1.3rem 0;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(11, 13, 18, 0.74);
}

.page-faq .faq-item__a p + p {
  margin-top: 0.55rem;
}

.page-faq .faq-item__a a {
  color: var(--c-signal);
  border-bottom-color: rgba(255, 122, 51, 0.42);
}

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

/* ---------- 结尾提示 ---------- */
.page-faq .faq-content__foot {
  margin-top: clamp(1.8rem, 4vw, 2.8rem);
  padding: clamp(1.05rem, 2.6vw, 1.65rem);
  border: 1px solid rgba(11, 13, 18, 0.16);
  border-left: 3px solid var(--c-signal);
  background: rgba(255, 255, 255, 0.55);
}

.page-faq .faq-content__foot p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--faq-dim);
}

.page-faq .faq-content__foot p + p {
  margin-top: 0.5rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-item__a {
    padding-left: calc(2.1em + 0.75rem);
  }
}

@media (min-width: 720px) {
  .page-faq .triage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(220px, 290px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    order: 1;
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .faq-content {
    order: 2;
  }
}

@media (min-width: 1080px) {
  .page-faq .triage-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero__title {
    max-width: 22ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-led__dot {
    animation: none;
  }

  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
  }
}
<<<END>>>