.page-faq {
  --faq-rail-w: 260px;
  --faq-gap: clamp(1rem, 2.6vw, 1.9rem);
  background: var(--sm-ink);
  color: var(--sm-text);
  overflow-x: clip;
}

.page-faq .faq-crumb {
  padding-top: clamp(1rem, 3vw, 1.6rem);
  font-size: .78rem;
  color: var(--sm-muted);
}

.page-faq .faq-crumb a {
  color: var(--sm-text);
  text-decoration: none;
  transition: color .18s var(--sm-ease);
}

.page-faq .faq-crumb a:hover {
  color: var(--sm-signal);
}

/* ---------- 首屏信号台 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  margin-top: .8rem;
  padding: clamp(2rem, 6vw, 4rem) 0 clamp(1.8rem, 5vw, 3rem);
  border-top: 1px solid var(--sm-line);
  border-bottom: 1px solid var(--sm-line);
  background:
    radial-gradient(110% 90% at 88% 0%, rgba(0, 230, 118, .18), transparent 62%),
    radial-gradient(80% 70% at 6% 110%, rgba(55, 240, 194, .12), transparent 66%),
    linear-gradient(180deg, var(--sm-ink-2), var(--sm-ink));
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(201, 210, 227, .05) 0 1px, transparent 1px 76px),
    repeating-linear-gradient(0deg, rgba(201, 210, 227, .04) 0 1px, transparent 1px 76px);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 85%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .sm-eyebrow {
  display: inline-block;
  font-family: var(--sm-font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sm-cyan);
}

.page-faq .faq-hero h1 {
  margin: .7rem 0 0;
  max-width: 20ch;
  font-family: var(--sm-font-display);
  font-size: clamp(2rem, 6.4vw, 3.85rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.01em;
  color: var(--sm-paper);
}

.page-faq .faq-hero__lede {
  margin: 1rem 0 0;
  max-width: 40rem;
  font-size: clamp(.95rem, 2.2vw, 1.06rem);
  line-height: 1.78;
  color: var(--sm-text);
}

.page-faq .faq-lamps {
  display: grid;
  gap: .55rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-lamp {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .62rem .9rem;
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-pill);
  background: rgba(16, 26, 46, .78);
  font-size: .82rem;
  line-height: 1.4;
}

.page-faq .faq-lamp__dot {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--sm-muted);
}

.page-faq .faq-lamp--ok .faq-lamp__dot {
  background: var(--sm-signal);
  box-shadow: 0 0 0 4px rgba(0, 230, 118, .16), 0 0 12px rgba(0, 230, 118, .7);
}

.page-faq .faq-lamp--warn .faq-lamp__dot {
  background: var(--sm-amber);
  box-shadow: 0 0 0 4px rgba(255, 176, 32, .14);
}

.page-faq .faq-lamp--info .faq-lamp__dot {
  background: var(--sm-cyan);
  box-shadow: 0 0 0 4px rgba(55, 240, 194, .14);
}

.page-faq .faq-lamp__label {
  font-weight: 700;
  color: var(--sm-paper);
  white-space: nowrap;
}

.page-faq .faq-lamp__hint {
  display: none;
  font-size: .78rem;
  color: var(--sm-muted);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.7rem;
}

.page-faq .faq-hero__jump .sm-btn {
  font-size: .88rem;
}

/* ---------- 控制台双栏 ---------- */
.page-faq .faq-console {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-block: clamp(1.6rem, 4vw, 3rem) clamp(2.4rem, 6vw, 4rem);
}

.page-faq .faq-rail {
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-radius);
  background: rgba(16, 26, 46, .7);
  padding: 1rem .9rem 1.1rem;
}

.page-faq .faq-rail__title {
  margin: 0;
  font-family: var(--sm-font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sm-amber);
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: .8rem 0 1rem;
}

.page-faq .faq-filter .sm-filter__btn {
  appearance: none;
  border: 1px solid var(--sm-line);
  background: rgba(11, 18, 32, .9);
  color: var(--sm-text);
  padding: .4rem .74rem;
  border-radius: var(--sm-pill);
  font-family: var(--sm-font-body);
  font-size: .76rem;
  line-height: 1.2;
  cursor: pointer;
  transition: color .18s var(--sm-ease), border-color .18s var(--sm-ease), background .18s var(--sm-ease);
}

.page-faq .faq-filter .sm-filter__btn:hover {
  border-color: var(--sm-signal);
  color: var(--sm-paper);
}

.page-faq .faq-filter .sm-filter__btn.is-active,
.page-faq .faq-filter .sm-filter__btn[aria-pressed="true"] {
  background: var(--sm-signal);
  border-color: var(--sm-signal);
  color: var(--sm-ink-ink);
  font-weight: 700;
}

.page-faq .faq-rail__list {
  display: grid;
  gap: .15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail__list a {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: .45rem;
  align-items: baseline;
  padding: .52rem .55rem;
  border-left: 2px solid transparent;
  border-radius: var(--sm-radius-sm);
  color: var(--sm-text);
  font-size: .86rem;
  line-height: 1.45;
  text-decoration: none;
  transition: color .18s var(--sm-ease), background .18s var(--sm-ease), border-color .18s var(--sm-ease);
}

.page-faq .faq-rail__list a:hover {
  color: var(--sm-paper);
  background: rgba(0, 230, 118, .08);
  border-left-color: var(--sm-signal);
}

.page-faq .faq-rail__code {
  font-family: var(--sm-font-mono);
  font-size: .76rem;
  color: var(--sm-amber);
}

/* ---------- 内容块 ---------- */
.page-faq .faq-block {
  padding: clamp(1.1rem, 3vw, 1.85rem);
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-radius);
  background: var(--sm-ink-2);
  margin-bottom: var(--faq-gap);
  scroll-margin-top: 5.5rem;
}

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

.page-faq .faq-block--plain {
  border: 0;
  background: transparent;
  padding-left: 0;
  padding-right: 0;
  padding-top: 0;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid var(--sm-line);
}

.page-faq .faq-block__num {
  flex: none;
  font-family: var(--sm-font-mono);
  font-size: clamp(1.2rem, 3.4vw, 1.85rem);
  font-weight: 700;
  line-height: 1;
  color: var(--sm-amber);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--sm-font-display);
  font-size: clamp(1.18rem, 3.2vw, 1.62rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.005em;
  color: var(--sm-paper);
}

.page-faq .faq-block__lede {
  margin: .9rem 0 0;
  font-size: .94rem;
  line-height: 1.78;
  color: var(--sm-text);
}

.page-faq .faq-block__lede + .faq-figure,
.page-faq .faq-block__lede + .faq-steps {
  margin-top: 1.1rem;
}

/* ---------- 症状对号 ---------- */
.page-faq .faq-triage {
  display: grid;
  gap: .65rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-triage__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: .8rem;
  padding: .85rem .95rem;
  border: 1px solid var(--sm-line);
  border-left: 3px solid var(--sm-amber);
  border-radius: var(--sm-radius-sm);
  background: rgba(16, 26, 46, .9);
  color: inherit;
  text-decoration: none;
  transition: border-color .18s var(--sm-ease), background .18s var(--sm-ease);
}

.page-faq .faq-triage__row--cyan {
  border-left-color: var(--sm-cyan);
}

.page-faq .faq-triage__row--signal {
  border-left-color: var(--sm-signal);
}

.page-faq .faq-triage__row:hover {
  background: rgba(0, 230, 118, .07);
  border-color: var(--sm-signal);
  border-left-color: var(--sm-signal);
}

.page-faq .faq-triage__light {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--sm-amber);
  box-shadow: 0 0 10px rgba(255, 176, 32, .8);
}

.page-faq .faq-triage__light--cyan {
  background: var(--sm-cyan);
  box-shadow: 0 0 10px rgba(55, 240, 194, .8);
}

.page-faq .faq-triage__light--signal {
  background: var(--sm-signal);
  box-shadow: 0 0 10px rgba(0, 230, 118, .85);
}

.page-faq .faq-triage__text {
  display: grid;
  gap: .2rem;
}

.page-faq .faq-triage__title {
  font-size: .96rem;
  font-weight: 700;
  color: var(--sm-paper);
}

.page-faq .faq-triage__desc {
  font-size: .82rem;
  line-height: 1.6;
  color: var(--sm-muted);
}

.page-faq .faq-triage__go {
  font-family: var(--sm-font-mono);
  font-size: .74rem;
  color: var(--sm-cyan);
  white-space: nowrap;
}

/* ---------- 步骤条 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .5rem;
  margin: 1.1rem 0 .9rem;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .faq-step {
  display: grid;
  gap: .3rem;
  padding: .75rem .8rem;
  border: 1px solid rgba(55, 240, 194, .35);
  border-radius: var(--sm-radius-sm);
  background: linear-gradient(180deg, rgba(55, 240, 194, .14), rgba(16, 26, 46, .92));
  color: var(--sm-paper);
  text-decoration: none;
  transition: border-color .18s var(--sm-ease), background .18s var(--sm-ease);
}

.page-faq .faq-step:hover {
  border-color: var(--sm-signal);
  background: linear-gradient(180deg, rgba(0, 230, 118, .2), rgba(16, 26, 46, .92));
}

.page-faq .faq-step__no {
  font-family: var(--sm-font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  color: var(--sm-cyan);
}

.page-faq .faq-step__name {
  font-size: .88rem;
  font-weight: 700;
  line-height: 1.35;
}

.page-faq .faq-steps__detail {
  display: grid;
  gap: .1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps__detail li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: .7rem;
  align-items: baseline;
  padding: .7rem .1rem;
  border-top: 1px solid var(--sm-line);
  font-size: .89rem;
  line-height: 1.75;
  color: var(--sm-text);
  scroll-margin-top: 5.5rem;
}

.page-faq .faq-steps__detail .faq-step__no {
  color: var(--sm-amber);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 1.1rem 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-radius-sm);
  background: #0d1526;
}

.page-faq .faq-figure figcaption {
  margin-top: .5rem;
  font-size: .76rem;
  line-height: 1.6;
  color: var(--sm-muted);
}

.page-faq .faq-split {
  display: grid;
  gap: 1.1rem;
}

.page-faq .faq-split .faq-figure {
  margin-top: .9rem;
}

.page-faq .faq-split .faq-block__lede {
  margin-top: .9rem;
}

/* ---------- 清单与提示 ---------- */
.page-faq .faq-check {
  display: grid;
  gap: .5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqchk;
}

.page-faq .faq-check li {
  position: relative;
  padding-left: 2.1rem;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--sm-text);
}

.page-faq .faq-check li::before {
  counter-increment: faqchk;
  content: counter(faqchk, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .2rem;
  font-family: var(--sm-font-mono);
  font-size: .74rem;
  color: var(--sm-cyan);
}

.page-faq .faq-check a,
.page-faq .faq-inline-link a {
  color: var(--sm-signal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-check a:hover,
.page-faq .faq-inline-link a:hover {
  color: var(--sm-cyan);
}

.page-faq .faq-inline-link {
  margin: 1rem 0 0;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--sm-muted);
}

.page-faq .faq-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .7rem;
  align-items: start;
  margin-top: 1.1rem;
  padding: .8rem .9rem;
  border: 1px solid rgba(255, 176, 32, .38);
  border-radius: var(--sm-radius-sm);
  background: rgba(255, 176, 32, .09);
}

.page-faq .faq-note__mark {
  flex: none;
  font-family: var(--sm-font-mono);
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--sm-amber);
}

.page-faq .faq-note p {
  margin: 0;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--sm-text);
}

/* ---------- 纸色联系区 ---------- */
.page-faq .faq-block--paper {
  border-color: transparent;
  border-radius: var(--sm-radius);
  background: var(--sm-paper);
  color: #3A4459;
  box-shadow: var(--sm-shadow-deep);
}

.page-faq .faq-block--paper .faq-block__head {
  border-bottom-color: rgba(11, 18, 32, .16);
}

.page-faq .faq-block--paper .faq-block__num {
  color: #B4700E;
}

.page-faq .faq-block--paper .faq-block__title {
  color: var(--sm-ink);
}

.page-faq .faq-block--paper .faq-block__lede {
  color: #3A4459;
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: .8rem;
  margin-top: 1.1rem;
}

.page-faq .faq-contact__item {
  padding: .8rem .9rem;
  border: 1px solid rgba(11, 18, 32, .16);
  border-radius: var(--sm-radius-sm);
  background: rgba(255, 255, 255, .55);
}

.page-faq .faq-contact__label {
  margin: 0;
  font-family: var(--sm-font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #6B7488;
}

.page-faq .faq-contact__value {
  margin: .35rem 0 0;
  font-family: var(--sm-font-mono);
  font-size: clamp(.9rem, 2.6vw, 1.05rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--sm-ink);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-faq .faq-contact__value--sm {
  font-family: var(--sm-font-body);
  font-size: .88rem;
  font-weight: 500;
  line-height: 1.7;
  color: #3A4459;
}

.page-faq .faq-actions {
  margin-top: 1.2rem;
}

.page-faq .faq-actions .sm-btn--signal {
  background: var(--sm-signal);
  color: var(--sm-ink-ink);
  font-weight: 700;
  border: 1px solid var(--sm-signal);
}

.page-faq .faq-actions .sm-btn--signal:hover {
  background: var(--sm-cyan);
  border-color: var(--sm-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-lamp__hint {
    display: inline;
  }

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

@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-faq .faq-lamp {
    align-items: flex-start;
    flex-wrap: wrap;
    border-radius: var(--sm-radius-sm);
  }

  .page-faq .faq-lamp__hint {
    flex-basis: 100%;
    padding-left: 1.05rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
    gap: 1.5rem;
  }

  .page-faq .faq-split .faq-figure {
    margin-top: 1rem;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-console {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 5.5rem;
  }

  .page-faq .faq-hero__lede {
    font-size: 1.06rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-triage__row,
  .page-faq .faq-rail__list a,
  .page-faq .faq-filter .sm-filter__btn {
    transition: none;
  }
}