.page-faq {
  --faq-index-w: 264px;
  --faq-radius: 14px;
  background: var(--ink);
  color: var(--text);
}

.page-faq .breadcrumb {
  padding: 20px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

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

/* ---------- 骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding: 20px 0 72px;
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 56px;
    padding: 24px 0 104px;
  }
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  align-self: start;
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h-scrolled) + 24px);
  }
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
}

@media (min-width: 1024px) {
  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 4px;
    padding-bottom: 0;
    overflow: visible;
  }
}

.page-faq .faq-index__item {
  flex: none;
}

@media (min-width: 1024px) {
  .page-faq .faq-index__item {
    flex: 1 1 auto;
  }
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  box-sizing: border-box;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(11, 27, 43, 0.55);
  color: var(--text);
  font-size: 13px;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

@media (min-width: 1024px) {
  .page-faq .faq-index__link {
    white-space: normal;
  }
}

.page-faq .faq-index__link:hover {
  border-color: var(--cyan);
  background: rgba(34, 224, 208, 0.08);
  color: var(--white);
}

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

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

.page-faq .faq-index__name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}

/* ---------- 主内容 ---------- */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: linear-gradient(135deg,
    rgba(11, 27, 43, 0.96) 0%,
    rgba(16, 38, 31, 0.7) 52%,
    rgba(6, 17, 15, 0.2) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(34, 224, 208, 0.22), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero .eyebrow {
  position: relative;
  margin: 0;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  position: relative;
  margin: 12px 0 0;
  max-width: 22ch;
  font-size: clamp(28px, 5vw, 50px);
  font-weight: 250;
  line-height: 1.16;
  letter-spacing: 0.045em;
  color: var(--white);
}

.page-faq .faq-hero .lede {
  position: relative;
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

/* ---------- 版本号快查 ---------- */
.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 24px 0 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(6, 17, 15, 0.92);
}

@media (min-width: 1024px) {
  .page-faq .faq-quick {
    position: sticky;
    top: calc(var(--header-h-scrolled) + 12px);
    z-index: 4;
    backdrop-filter: blur(10px);
  }
}

.page-faq .faq-quick__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
  padding-right: 12px;
  border-right: 1px solid var(--line);
}

.page-faq .faq-quick__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  box-sizing: border-box;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

.page-faq .faq-quick__item .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--amber);
}

.page-faq .faq-quick__item:hover {
  border-color: var(--cyan);
  background: rgba(34, 224, 208, 0.08);
  color: var(--white);
}

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

/* ---------- 问题分组 ---------- */
.page-faq .faq-block {
  margin-top: clamp(40px, 6vw, 68px);
  scroll-margin-top: calc(var(--header-h-scrolled) + 96px);
}

.page-faq .faq-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-block__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-block__head h2 {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: clamp(19px, 2.4vw, 27px);
  font-weight: 300;
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: var(--white);
}

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

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  border-left: 2px solid transparent;
  padding: 0 14px 0 16px;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 2px;
}

.page-faq .qa:hover {
  border-left-color: var(--silver);
  background: rgba(16, 38, 31, 0.4);
}

.page-faq .qa[open] {
  border-left-color: var(--cyan);
  border-radius: 0 12px 12px 0;
  background: linear-gradient(90deg,
    rgba(34, 224, 208, 0.09) 0%,
    rgba(16, 38, 31, 0.55) 42%,
    rgba(16, 38, 31, 0.22) 100%);
}

.page-faq .qa[open]:hover {
  border-left-color: var(--cyan);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  min-height: 44px;
  box-sizing: border-box;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 450;
  line-height: 1.6;
  color: var(--white);
}

.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: 3px;
  border-radius: 6px;
}

.page-faq .qa__idx {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color var(--dur) var(--ease);
}

.page-faq .qa[open] .qa__idx {
  color: var(--cyan);
}

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

.page-faq .qa__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 5px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 1.5px;
  background: var(--silver);
  transform: translate(-50%, -50%);
  transition: transform var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.page-faq .qa__mark::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .qa[open] .qa__mark::before {
  background: var(--cyan);
}

.page-faq .qa[open] .qa__mark::after {
  background: var(--cyan);
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-faq .qa__a {
  max-width: 68ch;
  padding: 0 0 22px 34px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

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

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

@media (max-width: 639px) {
  .page-faq .qa__a {
    padding-left: 0;
  }
}

.page-faq .qa__a a,
.page-faq .faq-outro p a,
.page-faq .figure figcaption a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: rgba(34, 224, 208, 0.38);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--dur) var(--ease);
}

.page-faq .qa__a a:hover,
.page-faq .faq-outro p a:hover {
  text-decoration-color: var(--cyan);
}

/* ---------- 编号步骤 ---------- */
.page-faq .steps {
  display: grid;
  gap: 10px;
  margin: 14px 0 6px;
  padding: 0;
  list-style: none;
}

.page-faq .steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 12px 14px;
  border-left: 2px solid var(--cyan);
  border-radius: 0 10px 10px 0;
  background: rgba(11, 27, 43, 0.6);
  font-size: 14px;
  line-height: 1.75;
}

.page-faq .steps .num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* ---------- 配图 ---------- */
.page-faq .figure {
  margin: 4px 0 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: rgba(11, 27, 43, 0.55);
}

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

.page-faq .figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 底部提交清单 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(44px, 6vw, 76px);
  padding: clamp(20px, 3.4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: linear-gradient(150deg,
    rgba(11, 27, 43, 0.95) 0%,
    rgba(16, 38, 31, 0.55) 100%);
}

.page-faq .faq-outro h2 {
  margin: 0 0 8px;
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-faq .faq-outro > p {
  margin: 0 0 18px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-outro__list {
  display: grid;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-outro__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(58, 74, 87, 0.7);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .faq-outro__list .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

@media (min-width: 700px) {
  .page-faq .faq-outro__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 28px;
  }
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.page-faq .faq-outro__actions .btn {
  text-decoration: none;
}

.page-faq .faq-outro__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__idx,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-index__link,
  .page-faq .faq-quick__item {
    transition: none;
  }
}
</PAGE_CSS>>>