/* ===== 问题解答页 · 页面作用域 ===== */
.page-faq {
  --faq-num: var(--gold);
  --faq-rule: var(--grid-soft);
  --faq-anchor-offset: 140px;
  display: block;
  background: var(--ink);
  color: var(--read);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 28px 0 40px;
  background:
    linear-gradient(180deg, rgba(122, 59, 255, 0.10) 0%, rgba(122, 59, 255, 0) 60%),
    var(--ink);
  border-bottom: 1px solid var(--grid-soft);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 18px;
}

.page-faq .faq-hero__index {
  color: var(--cyan);
  margin: 0;
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 8vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--read);
  max-width: 14ch;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--read-70);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 16px 0 0;
  overflow: hidden;
  border: 1px solid var(--grid-soft);
  border-radius: var(--radius);
  aspect-ratio: 16 / 6;
  background: var(--ink-2);
}

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

.page-faq .faq-hero__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--read);
  background: rgba(7, 7, 12, 0.78);
  border-top: 1px solid var(--cyan);
  border-right: 1px solid var(--grid-soft);
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding-top: 40px;
  padding-bottom: 56px;
}

/* 场景索引 */
.page-faq .faq-scene__title {
  margin: 0 0 14px;
  color: var(--read-45);
}

.page-faq .faq-scene__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
}

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

.page-faq .faq-scene__link {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 10px 0 10px 15px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--read-70);
  text-decoration: none;
  border-left: 1px solid var(--faq-rule);
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.page-faq .faq-scene__link:hover,
.page-faq .faq-scene__link:focus-visible {
  color: var(--read);
  border-left-color: var(--violet);
  background: var(--violet-soft);
  outline: none;
}

.page-faq .faq-scene__link:focus-visible {
  box-shadow: 0 0 0 2px var(--cyan);
}

.page-faq .faq-scene__num {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-scene__note {
  margin: 18px 0 0;
  padding-left: 15px;
  border-left: 1px solid var(--faq-rule);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--read-45);
}

/* 问答分组 */
.page-faq .faq-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 56px;
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: var(--faq-anchor-offset);
  min-width: 0;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 9px;
  padding-bottom: 18px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-group__head .index-label {
  margin: 0;
  color: var(--violet);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 5vw, 36px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--read);
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--read-45);
}

/* 折叠问答 */
.page-faq .faq-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}

.page-faq .faq-item {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.page-faq .faq-item:hover {
  border-color: var(--violet-line);
  transform: translateY(-2px);
}

.page-faq .faq-item[open] {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan-soft);
  transform: none;
}

.page-faq .faq-item__q {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 17px 18px;
  margin: 0;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--read);
}

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

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

.page-faq .faq-item__q:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--cyan);
}

.page-faq .faq-item__num {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--violet);
  padding-top: 4px;
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
}

.page-faq .faq-item__a {
  padding: 15px 18px 19px;
  border-top: 1px solid var(--grid-soft);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--read-70);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 60ch;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--faq-num);
  font-weight: 600;
}

/* 勘误区块 */
.page-faq .faq-errata {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.page-faq .faq-errata__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--grid-soft);
  border-radius: var(--radius);
  aspect-ratio: 12 / 7;
  background: var(--ink-2);
}

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

.page-faq .faq-errata__tag {
  position: absolute;
  right: 0;
  bottom: 0;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--read);
  background: rgba(7, 7, 12, 0.78);
  border-top: 1px solid var(--gold);
  border-left: 1px solid var(--grid-soft);
}

.page-faq .faq-verify {
  background: var(--paper);
  color: var(--paper-ink);
  padding: 26px 22px 22px;
  border-radius: var(--radius);
  border-left: 3px solid var(--violet);
}

.page-faq .faq-verify .index-label {
  margin: 0 0 8px;
  color: rgba(26, 26, 34, 0.55);
}

.page-faq .faq-verify__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 4vw, 24px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper-ink);
}

.page-faq .faq-verify__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-verify__row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(26, 26, 34, 0.14);
}

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

.page-faq .faq-verify__box {
  flex: none;
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  accent-color: var(--violet);
  cursor: pointer;
}

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

.page-faq .faq-verify__label {
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-ink);
  cursor: pointer;
}

.page-faq .faq-verify__num {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: #8A5A00;
  margin-right: 8px;
}

.page-faq .faq-verify__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(26, 26, 34, 0.14);
  font-size: 12.5px;
  line-height: 1.8;
  color: rgba(26, 26, 34, 0.72);
  word-break: break-word;
}

/* ---------- 页尾收束 ---------- */
.page-faq .faq-end {
  padding: 0 0 72px;
}

.page-faq .faq-end__inner {
  display: grid;
  gap: 0;
}

.page-faq .faq-end__rule {
  height: 11px;
  background-image: repeating-linear-gradient(
    to right,
    var(--grid) 0,
    var(--grid) 1px,
    transparent 1px,
    transparent 16px
  );
  border-bottom: 1px solid var(--grid-soft);
}

.page-faq .faq-end__card {
  display: grid;
  gap: 14px;
  justify-items: start;
  margin-top: 28px;
  padding: 30px 26px 32px;
  background: linear-gradient(135deg, rgba(122, 59, 255, 0.16) 0%, rgba(25, 227, 209, 0.06) 100%), var(--panel);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
}

.page-faq .faq-end__card .index-label {
  margin: 0;
  color: var(--cyan);
}

.page-faq .faq-end__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 5.4vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--read);
  max-width: 20ch;
}

.page-faq .faq-end__text {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--read-70);
}

/* ---------- 动效 ---------- */
.page-faq [data-reveal] {
  opacity: 1;
}

.page-faq.js-ready .page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.page-faq.js-ready .page-faq [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-scene__link {
    transition: none;
  }

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

  .page-faq.js-ready .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-hero {
    padding: 36px 0 48px;
  }

  .page-faq .faq-hero__media {
    aspect-ratio: 16 / 5;
  }

  .page-faq .faq-verify {
    padding: 30px 30px 26px;
  }

  .page-faq .faq-item__q {
    padding: 18px 22px;
  }

  .page-faq .faq-item__a {
    padding: 16px 22px 21px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 234px minmax(0, 1fr);
    gap: 64px;
    padding-top: 56px;
    padding-bottom: 80px;
  }

  .page-faq .faq-scene {
    position: sticky;
    top: 132px;
    align-self: start;
  }

  .page-faq .faq-errata {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 28px;
  }

  .page-faq .faq-end__card {
    padding: 40px 44px 44px;
    justify-items: start;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 258px minmax(0, 1fr);
    gap: 80px;
  }
}
<<<END>>>