.page-faq {
  background: var(--ink-900);
  color: var(--paper);
  padding-block-start: calc(var(--topbar-h) + clamp(20px, 3vw, 40px));
  padding-block-end: clamp(64px, 8vw, 116px);
  overflow-x: clip;
}

.page-faq .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  border-bottom: 1px solid var(--line);
  padding-bottom: clamp(28px, 4vw, 52px);
}

.page-faq .faq-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 48px);
}

.page-faq .faq-intro h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 6.4vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.005em;
  margin: 0.35em 0 0.55em;
  max-width: 22ch;
}

.page-faq .faq-intro .lede {
  margin: 0;
  max-width: 60ch;
  color: var(--paper-dim);
  font-size: clamp(1rem, 1.85vw, 1.1rem);
  line-height: 1.82;
}

.page-faq .faq-facts {
  list-style: none;
  margin: clamp(20px, 2.8vw, 30px) 0 0;
  padding: clamp(14px, 2vw, 18px) 0 0;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
}

.page-faq .faq-facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.page-faq .faq-facts__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-facts__v {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--cyan);
}

/* ---------- 场景跳转 ---------- */
.page-faq .faq-jump {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 38, 57, 0.92), rgba(6, 24, 38, 0.92));
  padding: clamp(14px, 2vw, 20px);
}

.page-faq .faq-jump__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-jump__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-jump__link {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--paper);
  font-size: 0.94rem;
  line-height: 1.6;
  text-decoration: none;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-jump__link:hover {
  background: rgba(53, 226, 210, 0.09);
  border-left-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-jump__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- 分区标题 ---------- */
.page-faq .faq-block {
  margin-top: clamp(46px, 6.6vw, 90px);
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-faq .section__head {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-faq .section__title {
  font-family: var(--font-display);
  font-size: clamp(1.42rem, 3.5vw, 2.05rem);
  line-height: 1.24;
  letter-spacing: 0.005em;
}

.page-faq .section__note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 图文分栏 ---------- */
.page-faq .faq-block__body--media {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .qa {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 38, 57, 0.7), rgba(6, 24, 38, 0.7));
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .qa:hover {
  border-color: rgba(53, 226, 210, 0.42);
  transform: translateY(-2px);
}

.page-faq .qa[open] {
  border-color: rgba(53, 226, 210, 0.6);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 16px;
  gap: 12px;
  align-items: start;
  padding: clamp(13px, 1.8vw, 17px) clamp(14px, 2vw, 20px);
  cursor: pointer;
  list-style: none;
  font-size: clamp(0.97rem, 2.1vw, 1.06rem);
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

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

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding-top: 5px;
}

.page-faq .qa__icon {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.page-faq .qa__icon::before {
  width: 14px;
  height: 1.5px;
}

.page-faq .qa__icon::after {
  width: 1.5px;
  height: 14px;
}

.page-faq .qa[open] .qa__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__a {
  background: var(--paper);
  color: var(--text);
  border-top: 1px solid var(--line);
  padding: clamp(14px, 2vw, 20px) clamp(15px, 2.2vw, 22px) clamp(16px, 2.2vw, 22px);
  display: grid;
  gap: 12px;
  font-size: 0.97rem;
  line-height: 1.8;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 68ch;
}

.page-faq .qa__a a {
  color: #0b5c65;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover {
  color: var(--orange);
}

.page-faq .qa__hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.8;
  color: #5d6e78;
}

/* ---------- 红黄牌图例 ---------- */
.page-faq .faq-legend {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: clamp(12px, 1.8vw, 18px);
  border: 1px solid var(--line);
  background: rgba(12, 38, 57, 0.5);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .faq-legend__item {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 4px 12px;
  align-items: center;
  padding: 8px 10px;
  border-radius: var(--radius);
  transition: background 0.18s var(--ease);
}

.page-faq .faq-legend__item:hover {
  background: rgba(53, 226, 210, 0.08);
}

.page-faq .faq-legend__item:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 1px;
}

.page-faq .faq-legend__chip {
  grid-column: 1;
  grid-row: 1;
  width: 12px;
  height: 16px;
  border-radius: 2px;
}

.page-faq .faq-legend__chip--yellow {
  background: var(--yellow);
}

.page-faq .faq-legend__chip--red {
  background: var(--red);
}

.page-faq .faq-legend__label {
  grid-column: 2;
  grid-row: 1;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-legend__tip {
  grid-column: 2;
  grid-row: 2;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 数字条目 ---------- */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-stats__cell {
  background: var(--ink-800);
  padding: clamp(14px, 2vw, 22px);
}

.page-faq .faq-stats__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 10px;
}

.page-faq .faq-stats__v {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}

.page-faq .faq-stats__unit {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure .figure__img {
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

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

.page-faq .faq-figure .figure__caption {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
  margin-top: 10px;
}

/* ---------- 结尾行动 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(48px, 7vw, 96px);
}

.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
  padding: clamp(22px, 3.4vw, 40px);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(12, 38, 57, 0.95) 0%, rgba(6, 24, 38, 0.95) 58%, rgba(27, 111, 120, 0.38) 100%);
}

.page-faq .faq-cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  line-height: 1.24;
  margin: 0.35em 0 0.5em;
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 52ch;
  color: var(--paper-dim);
  font-size: 0.98rem;
  line-height: 1.8;
}

.page-faq .faq-cta__actions {
  align-self: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-faq .faq-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-legend__tip {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.24s var(--ease), opacity 0.24s var(--ease);
  }

  .page-faq .faq-legend__item:hover .faq-legend__tip,
  .page-faq .faq-legend__item:focus-visible .faq-legend__tip {
    max-height: 8em;
    opacity: 1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-intro__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.85fr);
    align-items: end;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-block__body--media {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-cta__actions {
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__icon::before,
  .page-faq .qa__icon::after,
  .page-faq .faq-jump__link,
  .page-faq .faq-legend__item,
  .page-faq .faq-legend__tip {
    transition: none;
  }

  .page-faq .qa:hover {
    transform: none;
  }
}