/* ===== 知识中心 / page-faq ===== */

.page-faq {
  --faq-num-col: 2.4rem;
  --faq-rule: var(--line-700);
  --faq-soft: var(--moss);
  display: block;
  overflow-x: hidden;
}

@media (min-width: 640px) {
  .page-faq {
    --faq-num-col: 3.25rem;
  }
}

/* --- 面包屑 --- */
.page-faq .breadcrumb {
  background: var(--field-950);
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.page-faq .breadcrumb__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.page-faq .breadcrumb__link {
  color: var(--moss);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--lemon);
}

.page-faq .breadcrumb__sep {
  color: var(--line-700);
}

.page-faq .breadcrumb__current {
  color: var(--paper);
}

/* --- 首屏 --- */
.page-faq .faq-hero {
  position: relative;
  background:
    radial-gradient(115% 85% at 86% 4%, rgba(79, 168, 224, 0.14), transparent 60%),
    linear-gradient(178deg, var(--field-950) 0%, var(--field-900) 72%);
  color: var(--paper);
  padding: clamp(2rem, 6vw, 4.25rem) 0 clamp(2.25rem, 6vw, 3.75rem);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, var(--lemon) 0 26%, var(--line-700) 26% 100%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 5vw, 3.25rem);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

.page-faq .faq-hero__kicker {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--flag);
}

.page-faq .faq-hero__kicker::before {
  content: "";
  width: 2.25rem;
  height: 1px;
  flex: none;
  background: var(--flag);
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.95rem, 5.4vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 1.1rem 0 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--moss);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-faq .faq-hero__aside {
  display: grid;
  gap: 1.25rem;
}

.page-faq .faq-figure-svg {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-700);
  background: linear-gradient(160deg, rgba(30, 74, 50, 0.4), rgba(9, 24, 17, 0.65));
}

.page-faq .faq-hero__facts {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-700);
}

.page-faq .faq-hero__facts li {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line-700);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--moss);
}

.page-faq .faq-hero__facts .u-mono {
  font-family: var(--mono);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--lemon);
}

/* --- 高频问答 --- */
.page-faq .faq-fast {
  background: var(--paper);
  color: var(--ink-900);
  padding: clamp(2.25rem, 5.5vw, 3.75rem) 0;
}

.page-faq .faq-fast .section-head__title {
  color: var(--ink-900);
}

.page-faq .faq-fast__list {
  margin-top: 1.5rem;
}

.page-faq .faq-qa {
  border-bottom: 1px solid var(--ash);
}

.page-faq .faq-qa:first-child {
  border-top: 1px solid var(--ash);
}

.page-faq .faq-qa__summary {
  display: grid;
  grid-template-columns: var(--faq-num-col) minmax(0, 1fr) 1rem;
  gap: 0 0.75rem;
  align-items: start;
  padding: 1.15rem 0;
  cursor: pointer;
  list-style: none;
  color: inherit;
}

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

.page-faq .faq-qa__summary::marker {
  content: "";
}

.page-faq .faq-qa__num {
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--flag);
  padding-top: 0.25rem;
}

.page-faq .faq-qa__q {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--ink-900);
}

.page-faq .faq-qa__icon {
  position: relative;
  width: 0.9rem;
  height: 0.9rem;
  margin-top: 0.38rem;
  color: var(--flag);
}

.page-faq .faq-qa__icon::before,
.page-faq .faq-qa__icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  background: currentColor;
  transform: translateY(-50%);
  transition: transform 0.22s var(--ease);
}

.page-faq .faq-qa__icon::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-qa[open] .faq-qa__icon::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-qa__a {
  padding: 0 1rem 1.35rem calc(var(--faq-num-col) + 0.75rem);
}

.page-faq .faq-qa__a p {
  margin: 0;
  max-width: 64ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(36, 28, 20, 0.78);
}

/* --- 通用章节 --- */
.page-faq .faq-section {
  position: relative;
  padding: clamp(2.5rem, 6vw, 4.25rem) 0;
}

.page-faq .faq-section--dark {
  background: var(--field-900);
  color: var(--paper);
  --faq-rule: var(--line-700);
}

.page-faq .faq-section--light {
  background: var(--paper);
  color: var(--ink-900);
  --faq-rule: var(--ash);
}

.page-faq .faq-section--dark .section-head__title {
  color: var(--paper);
}

.page-faq .faq-section--light .section-head__title {
  color: var(--ink-900);
}

.page-faq .faq-block {
  margin-top: 1.75rem;
}

.page-faq .faq-lede {
  margin: 0 0 1.75rem;
  max-width: 62ch;
  padding-left: 1rem;
  border-left: 2px solid var(--lemon);
  font-size: 1rem;
  line-height: 1.85;
}

.page-faq .faq-section--light .faq-lede {
  border-left-color: var(--flag);
}

.page-faq .faq-section--dark .faq-lede {
  color: var(--moss);
}

.page-faq .faq-section--light .faq-lede {
  color: rgba(36, 28, 20, 0.78);
}

.page-faq .faq-point + .faq-point {
  margin-top: 1.75rem;
}

.page-faq .faq-point__q {
  margin: 0 0 0.5rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.125rem;
  line-height: 1.5;
}

.page-faq .faq-point__a {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.85;
}

.page-faq .faq-section--dark .faq-point__q {
  color: var(--paper);
}

.page-faq .faq-section--light .faq-point__q {
  color: var(--ink-900);
}

.page-faq .faq-section--dark .faq-point__a {
  color: var(--moss);
}

.page-faq .faq-section--light .faq-point__a {
  color: rgba(36, 28, 20, 0.78);
}

/* --- 图 --- */
.page-faq .faq-figure {
  margin: 0 0 2rem;
}

.page-faq .faq-figure .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* --- 窄栏注释 --- */
.page-faq .faq-aside {
  display: grid;
  gap: 1.35rem;
  align-self: start;
}

@media (max-width: 899px) {
  .page-faq .faq-aside {
    margin-top: 2rem;
  }
}

.page-faq .faq-note {
  border-left: 2px solid var(--flag);
  padding: 0.1rem 0 0.1rem 1rem;
}

.page-faq .faq-note__label {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--flag);
}

.page-faq .faq-note__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
}

.page-faq .faq-section--dark .faq-note__text {
  color: var(--moss);
}

.page-faq .faq-section--light .faq-note__text {
  color: rgba(36, 28, 20, 0.78);
}

.page-faq .faq-note__text a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 168, 224, 0.4);
}

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

.page-faq .faq-section--light .faq-note__text a:hover,
.page-faq .faq-section--light .faq-note__text a:focus-visible {
  color: var(--flag);
  border-bottom-color: var(--flag);
}

/* --- 阅读顺序列表 --- */
.page-faq .faq-steps {
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-steps__num {
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--lemon);
  padding-top: 0.2rem;
}

.page-faq .faq-section--light .faq-steps__num {
  color: var(--flag);
}

.page-faq .faq-steps__title {
  margin: 0 0 0.35rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.0625rem;
  line-height: 1.5;
}

.page-faq .faq-section--dark .faq-steps__title {
  color: var(--paper);
}

.page-faq .faq-steps__text {
  margin: 0;
  max-width: 58ch;
  font-size: 0.9375rem;
  line-height: 1.8;
}

.page-faq .faq-section--dark .faq-steps__text {
  color: var(--moss);
}

/* --- 末尾行动 --- */
.page-faq .faq-cta {
  justify-self: start;
}

/* --- 窄屏收尾 --- */
@media (max-width: 639px) {
  .page-faq .faq-qa__summary {
    grid-template-columns: 2.4rem minmax(0, 1fr) 0.9rem;
    gap: 0 0.6rem;
  }

  .page-faq .faq-qa__a {
    padding-left: 3rem;
    padding-right: 0;
  }

  .page-faq .faq-hero__facts li {
    grid-template-columns: 3.5rem minmax(0, 1fr);
  }

  .page-faq .faq-hero__actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-qa__icon::before,
  .page-faq .faq-qa__icon::after,
  .page-faq .breadcrumb__link {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>