.page-faq {
  --faq-line: #232A36;
  --faq-cyan-soft: rgba(34, 225, 255, 0.09);
  --faq-amber-soft: rgba(255, 164, 28, 0.08);
}

.page-faq .faq-crumb-row {
  padding-top: 18px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 26px;
  padding-top: 20px;
  padding-bottom: 34px;
}

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

.page-faq .faq-title {
  margin: 10px 0 0;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  font-size: clamp(1.85rem, 8.4vw, 3.5rem);
}

.page-faq .faq-title__lead {
  display: block;
}

.page-faq .faq-title__sub {
  display: block;
  margin-top: 8px;
  font-size: clamp(0.95rem, 3.6vw, 1.4rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-faq .faq-hero .lede {
  margin: 16px 0 0;
  font-size: 0.97rem;
  line-height: 1.78;
  color: var(--steel);
  max-width: 48ch;
}

.page-faq .faq-hero__tags {
  margin-top: 18px;
}

.page-faq .faq-hero__panel {
  background: var(--board);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--cyan);
  padding: 18px 16px 20px;
}

.page-faq .faq-panel__label {
  margin: 0 0 14px;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--steel);
}

.page-faq .faq-panel__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-panel__list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 9px;
  border-bottom: 1px dashed var(--faq-line);
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .faq-panel__list .mono {
  color: var(--cyan);
  font-size: 0.74rem;
  flex: 0 0 auto;
}

.page-faq .faq-hero__accent {
  grid-column: 1 / -1;
  height: 2px;
  background: var(--grad-edge);
}

/* ---------- 通用标题 ---------- */
.page-faq .faq-h2 {
  margin: 8px 0 0;
  font-size: clamp(1.3rem, 5vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.page-faq .faq-sub {
  margin: 10px 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--steel);
  max-width: 62ch;
}

.page-faq .faq-hint {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--amber);
}

/* ---------- 故障分流带 ---------- */
.page-faq .faq-triage {
  padding: 36px 0 40px;
}

.page-faq .faq-triage__rail {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  padding: 18px 0 8px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-triage__card {
  flex: 0 0 78%;
  min-width: 0;
  scroll-snap-align: start;
  display: grid;
  gap: 9px;
  align-content: start;
  background: var(--board);
  border: 1px solid var(--faq-line);
  border-top: 3px solid var(--cyan);
  padding: 16px 14px 18px;
}

.page-faq .faq-triage__num {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--faq-line);
  letter-spacing: -0.04em;
}

.page-faq .faq-triage__name {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-triage__desc {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-triage__link {
  justify-self: start;
  margin-top: 2px;
  font-size: 0.8rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-cyan-soft);
}

.page-faq .faq-triage__link:hover,
.page-faq .faq-triage__link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 三步自查 ---------- */
.page-faq .faq-steps {
  padding-top: 42px;
  padding-bottom: 44px;
}

.page-faq .faq-steps__body {
  display: grid;
  gap: 28px;
  margin-top: 26px;
}

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

.page-faq .faq-step {
  position: relative;
  padding: 0 0 28px 58px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--teal) 45%, var(--faq-line) 100%);
}

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

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: var(--ink);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  letter-spacing: 0.02em;
}

.page-faq .faq-step__title {
  margin: 4px 0 8px;
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .faq-step__desc {
  margin: 0 0 12px;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .faq-verdict {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  margin: 0 0 7px;
  font-size: 0.83rem;
  line-height: 1.55;
  color: var(--steel);
}

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

.page-faq .faq-verdict__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 6px;
}

.page-faq .faq-verdict__text b {
  font-weight: 700;
  margin-right: 4px;
}

.page-faq .faq-verdict--pass .faq-verdict__dot {
  background: var(--green);
  box-shadow: 0 0 8px rgba(87, 227, 155, 0.55);
}

.page-faq .faq-verdict--pass .faq-verdict__text b {
  color: var(--green);
}

.page-faq .faq-verdict--fail .faq-verdict__dot {
  background: var(--amber);
  box-shadow: 0 0 8px rgba(255, 164, 28, 0.55);
}

.page-faq .faq-verdict--fail .faq-verdict__text {
  color: var(--amber);
}

.page-faq .faq-verdict--fail .faq-verdict__text b {
  color: var(--amber);
}

.page-faq .faq-steps__figure {
  margin: 0;
  background: var(--board);
  border: 1px solid var(--faq-line);
}

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

.page-faq .faq-steps__figure figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 0.76rem;
  line-height: 1.65;
  color: var(--steel);
}

/* ---------- 分类条目 ---------- */
.page-faq .faq-entries {
  padding: 40px 0 46px;
}

.page-faq .filter-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding: 16px 0 6px;
  margin: 0;
}

.page-faq .filter-btn {
  flex: 0 0 auto;
  font: inherit;
  font-size: 0.79rem;
  line-height: 1;
  padding: 8px 13px;
  color: var(--steel);
  background: transparent;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  cursor: pointer;
}

.page-faq .filter-btn:hover {
  color: var(--paper);
  border-color: var(--steel);
}

.page-faq .filter-btn.is-active {
  color: var(--cyan);
  border-color: var(--cyan);
  background: var(--faq-cyan-soft);
}

.page-faq .faq-entries__list {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-entry {
  background: var(--board);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-entry[open] {
  border-left: 3px solid var(--cyan);
}

.page-faq .faq-entry summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 5px 12px;
  align-items: center;
  padding: 13px 14px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-entry summary:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -1px;
}

.page-faq .faq-entry__cat {
  grid-column: 1 / -1;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-faq .faq-entry__title {
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .faq-entry__mark {
  position: relative;
  width: 18px;
  height: 18px;
  align-self: center;
}

.page-faq .faq-entry__mark::before,
.page-faq .faq-entry__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.18s ease;
}

.page-faq .faq-entry__mark::before {
  left: 0;
  right: 0;
  top: 8px;
  height: 1.5px;
}

.page-faq .faq-entry__mark::after {
  top: 0;
  bottom: 0;
  left: 8px;
  width: 1.5px;
}

.page-faq .faq-entry[open] .faq-entry__mark::after {
  transform: scaleY(0);
}

.page-faq .faq-entry p {
  margin: 0;
  padding: 0 14px 15px;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .faq-empty {
  margin: 18px 0 0;
  padding: 14px;
  border: 1px dashed var(--faq-line);
  font-size: 0.84rem;
  color: var(--steel);
}

.page-faq .faq-empty.is-hidden {
  display: none;
}

/* ---------- 兼容短答 ---------- */
.page-faq .faq-compat {
  padding-top: 42px;
  padding-bottom: 42px;
}

.page-faq .faq-compat__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-compat__figure {
  margin: 22px 0 0;
  background: var(--board);
  border: 1px solid var(--faq-line);
}

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

.page-faq .faq-compat__figure figcaption {
  padding: 11px 13px;
  border-top: 1px solid var(--faq-line);
  font-size: 0.75rem;
  color: var(--steel);
}

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

.page-faq .faq-compat__list li {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  background: var(--board);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--amber);
  padding: 13px 14px;
}

.page-faq .faq-compat__dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-top: 7px;
  background: var(--amber);
  box-shadow: 0 0 7px rgba(255, 164, 28, 0.6);
}

.page-faq .faq-compat__list p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--amber);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-escalate {
  padding: 40px 0 48px;
}

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

.page-faq .faq-mailbox {
  margin: 22px 0 20px;
  background: var(--board);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--cyan);
  padding: 16px;
}

.page-faq .faq-mailbox__label {
  margin: 0;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--steel);
}

.page-faq .faq-mailbox__addr {
  display: block;
  margin: 8px 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(0.82rem, 3vw, 1.02rem);
  line-height: 1.5;
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-mailbox__note {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-prep__title {
  margin: 0 0 16px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-prep__note {
  margin: 16px 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-prep__links {
  margin: 14px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 0.82rem;
}

.page-faq .faq-prep__links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-cyan-soft);
}

.page-faq .faq-prep__links a:hover,
.page-faq .faq-prep__links a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 1fr);
    gap: 32px;
    align-items: start;
    padding-top: 28px;
    padding-bottom: 40px;
  }

  .page-faq .faq-triage__rail {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: visible;
    scroll-snap-type: none;
    gap: 14px;
  }

  .page-faq .faq-triage__card {
    flex: none;
  }

  .page-faq .faq-entries__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-compat__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 30px;
    align-items: start;
  }

  .page-faq .faq-escalate__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-triage__rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-steps__body {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-steps__figure {
    position: sticky;
    top: 108px;
  }

  .page-faq .faq-step {
    padding-left: 66px;
  }

  .page-faq .faq-step::before {
    left: 22px;
  }

  .page-faq .faq-step__num {
    width: 46px;
    height: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition: none !important;
    animation: none !important;
  }
}