.page-faq {
  --faq-line: rgba(46, 74, 90, 0.75);
  --faq-line-soft: rgba(46, 74, 90, 0.45);
  --faq-panel: rgba(18, 40, 54, 0.7);
  --faq-panel-soft: rgba(18, 40, 54, 0.35);
}

.page-faq .faq-crumbs {
  padding-top: clamp(18px, 4vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(18px, 3.5vw, 36px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -12%;
  width: min(560px, 72vw);
  height: min(560px, 72vw);
  background: radial-gradient(circle at 34% 34%, rgba(53, 242, 208, 0.13), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--sk-font-display);
  font-size: clamp(29px, 7vw, 60px);
  font-weight: 700;
  line-height: 1.09;
  letter-spacing: -0.005em;
  color: var(--sk-bone);
}

.page-faq .faq-hero__lede {
  margin-top: 18px;
  max-width: 38em;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.78;
  color: var(--sk-mist);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--sk-line);
  border-radius: var(--sk-radius);
  overflow: hidden;
  background: linear-gradient(155deg, var(--sk-ink-2), rgba(7, 19, 31, 0.92));
  box-shadow: 0 18px 44px var(--sk-shadow);
}

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

.page-faq .faq-modes {
  margin-top: clamp(22px, 3vw, 32px);
  display: grid;
  gap: 12px;
}

.page-faq .faq-mode {
  padding: 16px 16px 18px;
  border: 1px solid var(--sk-line);
  border-radius: var(--sk-radius-sm);
  background: linear-gradient(160deg, var(--faq-panel), var(--faq-panel-soft));
  transition: transform var(--sk-fast) var(--sk-ease), border-color var(--sk-fast) var(--sk-ease);
}

.page-faq .faq-mode:hover {
  transform: translateY(-2px);
  border-color: rgba(53, 242, 208, 0.6);
}

.page-faq .faq-mode__k {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--sk-cyan);
}

.page-faq .faq-mode__v {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--sk-bone);
}

.page-faq .faq-mode__t {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--sk-mist);
}

/* ---------- 热门问题 ---------- */
.page-faq .faq-hot {
  border-top: 1px solid var(--faq-line-soft);
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-hot__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: 16px;
}

.page-faq .faq-hot__title {
  margin: 0;
  font-family: var(--sk-font-display);
  font-size: clamp(18px, 3vw, 23px);
  font-weight: 600;
  color: var(--sk-bone);
}

.page-faq .faq-hot__hint {
  margin: 0;
  font-size: 13px;
  color: var(--sk-mist);
}

.page-faq .faq-hot__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hot__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 12px;
  border: 1px solid var(--sk-line);
  border-radius: var(--sk-pill);
  background: rgba(18, 40, 54, 0.6);
  color: var(--sk-bone);
  font-size: 13.5px;
  text-decoration: none;
  transition: transform var(--sk-fast) var(--sk-ease), border-color var(--sk-fast) var(--sk-ease), background var(--sk-fast) var(--sk-ease);
}

.page-faq .faq-hot__link:hover {
  transform: translateY(-1px);
  border-color: var(--sk-cyan);
  background: rgba(53, 242, 208, 0.08);
}

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

.page-faq .faq-hot__dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sk-orange);
}

/* ---------- 主体：索引 + 问答 ---------- */
.page-faq .faq-body__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-index {
  padding: 18px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--sk-radius-sm);
  background: var(--faq-panel-soft);
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--sk-mist);
}

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

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 8px;
  border-left: 2px solid transparent;
  border-radius: 8px;
  color: var(--sk-mist);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--sk-fast) var(--sk-ease), background var(--sk-fast) var(--sk-ease), border-color var(--sk-fast) var(--sk-ease);
}

.page-faq .faq-index__list a:hover {
  color: var(--sk-bone);
  background: rgba(53, 242, 208, 0.07);
  border-left-color: var(--sk-cyan);
}

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

.page-faq .faq-index__n {
  font-size: 11.5px;
  color: var(--sk-cyan);
}

.page-faq .faq-index__meta {
  display: grid;
  gap: 4px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index__meta p {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--sk-mist);
}

.page-faq .faq-group {
  margin-bottom: clamp(30px, 5vw, 46px);
  scroll-margin-top: 104px;
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__n {
  padding-top: 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sk-cyan);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--sk-font-display);
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 600;
  color: var(--sk-bone);
}

.page-faq .faq-group__head p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sk-mist);
}

.page-faq .faq-qa__item {
  margin-bottom: 10px;
  padding: 0 16px;
  border: 1px solid var(--sk-line);
  border-radius: var(--sk-radius-sm);
  background: var(--faq-panel);
  box-shadow: 0 6px 20px rgba(2, 10, 16, 0.35);
  transition: border-color var(--sk-fast) var(--sk-ease), background var(--sk-fast) var(--sk-ease);
}

.page-faq .faq-qa__item:hover {
  border-color: rgba(53, 242, 208, 0.45);
}

.page-faq .faq-qa__item[open] {
  border-color: rgba(53, 242, 208, 0.55);
  background: rgba(18, 40, 54, 0.92);
}

.page-faq .faq-qa__item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--sk-bone);
}

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

.page-faq .faq-qa__item summary:focus-visible {
  outline: 2px solid var(--sk-cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

.page-faq .faq-qa__num {
  flex: none;
  padding-top: 4px;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--sk-orange);
}

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

.page-faq .faq-qa__mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .faq-qa__mark::before,
.page-faq .faq-qa__mark::after {
  content: "";
  position: absolute;
  background: var(--sk-cyan);
  border-radius: 1px;
  transition: transform var(--sk-fast) var(--sk-ease);
}

.page-faq .faq-qa__mark::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-faq .faq-qa__mark::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-faq .faq-qa__item[open] .faq-qa__mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-qa__a {
  padding: 0 0 16px 12px;
}

.page-faq .faq-qa__a p {
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--sk-mist);
}

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

/* ---------- 版本对照步骤 ---------- */
.page-faq .faq-steps {
  scroll-margin-top: 104px;
}

.page-faq .faq-steps__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-steps h2 {
  margin: 10px 0 0;
  font-family: var(--sk-font-display);
  font-size: clamp(24px, 4.4vw, 38px);
  font-weight: 700;
  line-height: 1.16;
  color: var(--sk-bone);
}

.page-faq .faq-steps__list {
  display: grid;
  gap: 16px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-steps__n {
  padding-top: 3px;
  font-size: 12px;
  color: var(--sk-cyan);
}

.page-faq .faq-steps__list h3 {
  margin: 0 0 5px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--sk-bone);
}

.page-faq .faq-steps__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sk-mist);
}

.page-faq .faq-steps__cta {
  margin: 24px 0 0;
}

.page-faq .faq-steps__figure {
  margin: 0;
  border: 1px solid var(--sk-line);
  border-radius: var(--sk-radius);
  overflow: hidden;
  background: linear-gradient(200deg, rgba(53, 242, 208, 0.1), rgba(7, 19, 31, 0.9) 55%);
  box-shadow: 0 18px 44px var(--sk-shadow);
}

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

/* ---------- 仍需帮助 ---------- */
.page-faq .faq-help {
  scroll-margin-top: 104px;
}

.page-faq .faq-help__inner {
  position: relative;
  display: grid;
  gap: 24px;
  padding: clamp(22px, 4vw, 40px);
  overflow: hidden;
  border: 1px solid var(--sk-line);
  border-radius: var(--sk-radius);
  background: linear-gradient(150deg, rgba(18, 40, 54, 0.95), rgba(7, 19, 31, 0.78));
  box-shadow: 0 20px 50px var(--sk-shadow);
}

.page-faq .faq-help__inner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--sk-cyan), var(--sk-orange));
}

.page-faq .faq-help h2 {
  margin: 10px 0 0;
  font-family: var(--sk-font-display);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 700;
  line-height: 1.22;
  color: var(--sk-bone);
}

.page-faq .faq-help__check {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__check li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--sk-mist);
}

.page-faq .faq-help__check .sk-mono {
  padding-top: 2px;
  font-size: 12px;
  color: var(--sk-orange);
}

.page-faq .faq-help__card {
  padding: 20px 18px;
  border: 1px solid var(--faq-line);
  border-radius: var(--sk-radius-sm);
  background: rgba(7, 19, 31, 0.6);
}

.page-faq .faq-help__k {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--sk-mist);
}

.page-faq .faq-help__v {
  margin: 0 0 6px;
  font-family: var(--sk-font-mono);
  font-size: 14.5px;
  color: var(--sk-bone);
  word-break: break-all;
}

.page-faq .faq-help__n {
  margin: 10px 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sk-mist);
}

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-hero__figure {
    margin-top: 54px;
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: center;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-qa__a {
    padding-left: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-mode,
  .page-faq .faq-hot__link,
  .page-faq .faq-qa__mark::before,
  .page-faq .faq-qa__mark::after {
    transition: none;
  }
}
<<<END>>>