.page-faq {
  --faq-rail: 268px;
  --faq-line: rgba(138, 155, 176, 0.26);
  --faq-soft: rgba(244, 241, 234, 0.8);
  background: var(--c-space);
  color: var(--c-paper);
  padding-bottom: clamp(44px, 7vw, 88px);
}

.page-faq .faq-crumb-wrap {
  padding-top: clamp(16px, 3vw, 28px);
}

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

/* ---------- 页头 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(20px, 3.5vw, 34px) clamp(30px, 5vw, 56px);
  border-bottom: 2px solid var(--faq-line);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: center;
}

.page-faq .faq-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  color: var(--c-paper);
}

.page-faq .faq-hero__lead {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: var(--faq-soft);
  max-width: 58ch;
}

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

.page-faq .faq-hero__figure {
  margin: 0;
  border: 2px solid var(--c-ink);
  box-shadow: 8px 8px 0 0 var(--c-ink);
  aspect-ratio: 2 / 1;
  overflow: hidden;
  background: var(--c-panel);
}

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

/* ---------- 问答工作台 ---------- */
.page-faq .faq-desk {
  padding-top: clamp(28px, 4.5vw, 52px);
}

.page-faq .faq-desk__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}

.page-faq .faq-index {
  border: 2px solid var(--c-ink);
  background: var(--c-console);
  box-shadow: 6px 6px 0 0 var(--c-ink);
  padding: 16px 14px;
}

.page-faq .faq-index__title {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--c-paper);
}

.page-faq .faq-index__note {
  margin: 0 0 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-cool);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border: 2px solid transparent;
  color: var(--c-paper);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.4;
  transition: border-color var(--tr), background-color var(--tr), color var(--tr);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--c-cyan);
  background: rgba(40, 224, 255, 0.08);
  color: var(--c-cyan);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-orange);
  flex: 0 0 auto;
}

.page-faq .faq-index__foot {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index__foot .btn {
  display: block;
  text-align: center;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--signal-h) + 20px);
  margin-bottom: clamp(32px, 5vw, 56px);
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 2px solid rgba(40, 224, 255, 0.3);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-orange);
  flex: 0 0 auto;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.25;
  color: var(--c-paper);
}

.page-faq .faq-group__lead {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-soft);
  max-width: 62ch;
}

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

.page-faq .faq-group__more a,
.page-faq .faq-item__body a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-group__more a:hover,
.page-faq .faq-item__body a:hover {
  color: var(--c-orange);
}

/* ---------- 折叠答案 ---------- */
.page-faq .faq-item {
  background: var(--c-console);
  border: 2px solid var(--c-ink);
  box-shadow: 5px 5px 0 0 var(--c-ink);
  margin-bottom: 12px;
  transition: box-shadow var(--tr), border-color var(--tr);
}

.page-faq .faq-item:hover {
  border-color: var(--c-cyan);
  box-shadow: 7px 7px 0 0 var(--c-ink);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--tr);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--c-orange);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--c-cyan);
}

.page-faq .faq-item[open] summary {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-cool);
  padding-top: 4px;
}

.page-faq .faq-item__q {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(14.5px, 1.7vw, 16.5px);
  line-height: 1.55;
  color: var(--c-paper);
}

.page-faq .faq-item__body {
  padding: 14px 16px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-soft);
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
}

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

/* ---------- 五步路径 ---------- */
.page-faq .switch-path {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .switch-path li {
  background: var(--c-panel);
  border: 2px solid var(--c-ink);
  padding: 12px 14px 14px;
  display: grid;
  gap: 4px;
}

.page-faq .switch-path li::before {
  content: "";
  display: block;
  width: 26px;
  height: 3px;
  background: var(--c-cyan);
  margin-bottom: 8px;
}

.page-faq .switch-path__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-orange);
}

.page-faq .switch-path__name {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 15px;
  color: var(--c-paper);
}

.page-faq .switch-path__desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--c-cool);
}

.page-faq .faq-switch-figure {
  margin: 0 0 20px;
  border: 2px solid var(--c-ink);
  box-shadow: 8px 8px 0 0 var(--c-ink);
  background: var(--c-panel);
  aspect-ratio: 10 / 7;
  overflow: hidden;
}

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

.page-faq .faq-switch-figure .media-caption {
  margin: 0;
  padding: 10px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-cool);
  border-top: 2px solid var(--c-ink);
}

/* ---------- 自检清单 ---------- */
.page-faq .check-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 0;
  border-left: 3px solid rgba(40, 224, 255, 0.45);
}

.page-faq .check-list__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  padding: 12px 0 12px 14px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .check-list__item:last-child {
  border-bottom: 0;
}

.page-faq .check-list__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-mint);
  padding-top: 3px;
}

.page-faq .check-list__body strong {
  display: block;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 15px;
  color: var(--c-paper);
  margin-bottom: 4px;
}

.page-faq .check-list__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-soft);
}

/* ---------- 联系 ---------- */
.page-faq .faq-group--help {
  border-top: 2px solid rgba(255, 106, 42, 0.45);
  padding-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

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

.page-faq .faq-channels__item {
  background: var(--c-console);
  border: 2px solid var(--c-ink);
  box-shadow: 4px 4px 0 0 var(--c-ink);
  padding: 12px 14px;
  display: grid;
  gap: 4px;
}

.page-faq .faq-channels__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--c-cool);
  text-transform: uppercase;
}

.page-faq .faq-channels__value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-paper);
  text-decoration: none;
  word-break: break-all;
}

.page-faq .faq-channels__value--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-faq a.faq-channels__value:hover {
  color: var(--c-cyan);
}

.page-faq .faq-help__action {
  background: var(--c-panel);
  border: 2px solid var(--c-ink);
  box-shadow: 6px 6px 0 0 var(--c-ink);
  padding: 16px;
  display: grid;
  gap: 14px;
  align-content: start;
}

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

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

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

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .switch-path {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-desk__grid {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(28px, 3.5vw, 48px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--signal-h) + 16px);
  }

  .page-faq .faq-group {
    scroll-margin-top: calc(var(--signal-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 0.01ms !important;
  }
}
<<<END>>