.page-faq {
  --faq-space: clamp(34px, 5.5vw, 72px);
  --faq-radius: 28px 6px 26px 6px;
  padding-bottom: clamp(56px, 9vw, 110px);
}

.page-faq .breadcrumb {
  padding-top: clamp(88px, 12vw, 126px);
  margin-bottom: clamp(18px, 3vw, 30px);
}

/* 首屏 */
.page-faq .faq-hero {
  max-width: 68ch;
  margin-bottom: var(--faq-space);
}

.page-faq .faq-hero__title {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5.6vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 0;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__jump a {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.22s ease, color 0.22s ease, background-color 0.22s ease;
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  border-color: var(--yellow);
  color: var(--ink);
  background: var(--yellow);
}

/* 骨架 */
.page-faq .faq-shell {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

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

/* 分组 */
.page-faq .faq-group {
  margin-bottom: clamp(24px, 4vw, 44px);
  padding: clamp(20px, 3.4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  scroll-margin-top: 96px;
  background: linear-gradient(180deg, rgba(243, 240, 231, 0.05), rgba(243, 240, 231, 0.01));
}

.page-faq .faq-group--watch {
  --faq-dot: var(--cyan);
  background: linear-gradient(165deg, rgba(13, 58, 68, 0.6), rgba(10, 14, 13, 0.12) 72%);
}

.page-faq .faq-group--archive {
  --faq-dot: var(--orange);
  background: linear-gradient(165deg, rgba(59, 20, 32, 0.66), rgba(10, 14, 13, 0.12) 72%);
}

.page-faq .faq-group--rhythm {
  --faq-dot: var(--yellow);
  background: linear-gradient(165deg, rgba(33, 28, 62, 0.7), rgba(10, 14, 13, 0.12) 72%);
}

.page-faq .faq-group--account {
  --faq-dot: var(--cyan);
  background: linear-gradient(165deg, rgba(16, 56, 44, 0.72), rgba(10, 14, 13, 0.12) 72%);
}

.page-faq .faq-group--support {
  --faq-dot: var(--orange);
  background: linear-gradient(165deg, rgba(33, 28, 62, 0.5), rgba(13, 58, 68, 0.42));
}

.page-faq .faq-group__head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-group__index {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: none;
  padding-top: 4px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--yellow);
}

.page-faq .faq-group__swatch {
  width: 24px;
  height: 24px;
  border-radius: 9px 2px 8px 2px;
  background: var(--faq-dot, var(--yellow));
  opacity: 0.9;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-group__note {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* 插图 */
.page-faq .faq-figure {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--line);
  border-radius: 22px 4px 20px 4px;
  overflow: hidden;
  background: var(--green-deep);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* 问答折叠 */
.page-faq .qa-list {
  border-top: 1px solid var(--line-strong);
}

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

.page-faq .qa__q {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  justify-content: space-between;
  padding: 18px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(16px, 1.9vw, 18px);
  font-weight: 600;
  line-height: 1.65;
  color: var(--paper);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  color: var(--yellow);
  transition: background-color 0.24s ease, border-color 0.24s ease, color 0.24s ease;
}

.page-faq .qa__q:hover::after,
.page-faq .qa__q:focus-visible::after {
  border-color: var(--yellow);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--ink);
}

.page-faq .qa__a {
  padding: 0 0 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .qa__a p {
  margin: 0 0 12px;
}

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

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

.page-faq .qa[open] .qa__a {
  animation: faq-reveal 0.32s ease both;
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 侧栏 */
.page-faq .faq-rail__card {
  padding: clamp(20px, 3vw, 26px);
  border: 1px solid var(--line-strong);
  border-radius: 24px 6px 22px 6px;
  background: linear-gradient(160deg, rgba(33, 28, 62, 0.94), rgba(8, 37, 29, 0.94));
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-rail__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-rail__text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-rail__cta {
  display: flex;
  width: 100%;
  justify-content: center;
  margin-bottom: 16px;
}

.page-faq .faq-rail__list {
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.page-faq .faq-rail__num {
  flex: none;
  width: 26px;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* 收尾 */
.page-faq .faq-outro {
  margin-top: clamp(30px, 4.5vw, 52px);
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line-strong);
  border-radius: 6px 26px 6px 28px;
  background: linear-gradient(135deg, rgba(59, 20, 32, 0.6), rgba(13, 58, 68, 0.55));
}

.page-faq .faq-outro__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-outro__text {
  margin: 0 0 20px;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) 296px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-outro__actions {
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[open] .qa__a {
    animation: none;
  }

  .page-faq .qa__q::after,
  .page-faq .faq-hero__jump a,
  .page-faq .faq-rail__link {
    transition: none;
  }
}