.page-faq {
  --faq-maxw: 74ch;
  --faq-glow-a: radial-gradient(58% 62% at 8% 0%, rgba(46, 230, 230, .16), transparent 72%);
  --faq-glow-b: radial-gradient(52% 58% at 96% 6%, rgba(255, 46, 139, .14), transparent 70%);
  position: relative;
  max-width: 100%;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-top: calc(var(--header-offset) + clamp(20px, 4vw, 48px));
  padding-bottom: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 120%;
  background-image: var(--faq-glow-a), var(--faq-glow-b);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__top {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(16px, 2.5vw, 28px);
}

@media (min-width: 960px) {
  .page-faq .faq-hero__top {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: end;
  }
}

.page-faq .faq-hero__kicker {
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 12px 0 16px;
  font-size: clamp(28px, 5vw, 54px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: .005em;
  color: var(--paper);
  max-width: 20em;
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: clamp(56px, 12vw, 120px);
  height: 3px;
  margin-top: 20px;
  border-radius: 3px;
  background: var(--grad-line);
}

.page-faq .faq-hero__lead {
  max-width: var(--faq-maxw);
  color: var(--text-soft);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__marks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  align-content: end;
}

.page-faq .faq-hero__marks li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: .02em;
}

.page-faq .faq-hero__marks b {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 400;
  color: var(--paper);
  letter-spacing: -.01em;
}

.page-faq .faq-hero__media {
  margin-top: clamp(24px, 4vw, 44px);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

/* ---------- 分类跳转条 ---------- */
.page-faq .faq-jump {
  padding-bottom: clamp(16px, 3vw, 28px);
}

.page-faq .faq-jump__label {
  color: var(--muted);
  margin-bottom: 10px;
}

.page-faq .faq-jump__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 2px 2px 12px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-faq .faq-jump__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jump__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(15, 20, 32, .72);
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-jump__item b {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--cyan);
}

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  border-color: var(--cyan);
  color: var(--paper);
  background: rgba(46, 230, 230, .08);
}

.page-faq .faq-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex: none;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(46, 230, 230, .7);
}

.page-faq .faq-dot--mag {
  background: var(--magenta);
  box-shadow: 0 0 8px rgba(255, 46, 139, .65);
}

.page-faq .faq-dot--green {
  background: var(--green);
  box-shadow: 0 0 8px rgba(55, 229, 138, .6);
}

.page-faq .faq-dot--orange {
  background: var(--orange);
  box-shadow: 0 0 8px rgba(255, 154, 60, .6);
}

/* ---------- 问答分区 ---------- */
.page-faq .faq-block {
  position: relative;
  padding-block: clamp(26px, 4vw, 46px);
  scroll-margin-top: calc(var(--header-offset) + 20px);
}

.page-faq .faq-block__grid {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .page-faq .faq-block__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .faq-block__head {
    position: sticky;
    top: calc(var(--header-offset) + 20px);
    align-self: start;
  }
}

.page-faq .faq-block--alt::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 20, 32, .55), transparent 78%);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  pointer-events: none;
}

.page-faq .faq-block > .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-block__head .mono-label {
  color: var(--cyan);
}

.page-faq .faq-block__head h2 {
  margin: 10px 0 12px;
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .faq-block__desc {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
  max-width: 30ch;
}

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

/* ---------- 单条问答 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: clamp(16px, 2.2vw, 22px) 4px;
  cursor: pointer;
  list-style: none;
  transition: color .2s var(--ease);
}

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

.page-faq .faq-item summary:hover .faq-item__q,
.page-faq .faq-item summary:focus-visible .faq-item__q {
  color: var(--cyan);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
  border-radius: 6px;
}

.page-faq .faq-item__no {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  line-height: 1;
  color: rgba(46, 230, 230, .55);
  letter-spacing: .04em;
  min-width: 2.2em;
}

.page-faq .faq-item__q {
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color .2s var(--ease);
}

.page-faq .faq-item__q .tag {
  vertical-align: middle;
  margin-left: 6px;
}

.page-faq .faq-item__icon {
  position: relative;
  width: 16px;
  height: 16px;
  flex: none;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

.page-faq .faq-item__icon::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

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

.page-faq .faq-item__a {
  padding: 0 clamp(4px, 1vw, 12px) clamp(18px, 2.4vw, 26px);
  padding-left: calc(2.2em + 14px);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: var(--faq-maxw);
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-item__a a:hover {
  color: var(--paper);
}

@media (max-width: 640px) {
  .page-faq .faq-item summary {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
  }

  .page-faq .faq-item__no {
    font-size: 15px;
  }

  .page-faq .faq-item__a {
    padding-left: 4px;
  }
}

/* ---------- 工具章节 ---------- */
.page-faq .faq-tools {
  padding-block: clamp(30px, 5vw, 56px);
}

.page-faq .faq-tools__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 1000px) {
  .page-faq .faq-tools__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

.page-faq .faq-tools__aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, rgba(46, 230, 230, .07), rgba(15, 20, 32, .9) 58%);
}

.page-faq .faq-tools__aside .media {
  width: 100%;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

.page-faq .faq-tools__cap {
  color: var(--muted);
  line-height: 1.7;
}

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

.page-faq .faq-tools__head {
  position: static;
  margin-bottom: clamp(12px, 2vw, 20px);
}

.page-faq .faq-tools__head .faq-block__desc {
  max-width: 46ch;
}

/* ---------- 收尾跳转 ---------- */
.page-faq .faq-next {
  padding-block: clamp(28px, 4vw, 52px) clamp(40px, 6vw, 72px);
}

.page-faq .faq-next__grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 820px) {
  .page-faq .faq-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-next__card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--r-lg);
}

.page-faq .faq-next__card .mono-label {
  color: var(--muted);
}

.page-faq .faq-next__card h2 {
  margin: 0;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-next__card p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.75;
  max-width: 38ch;
}

.page-faq .faq-next__card .btn {
  margin-top: 6px;
}

/* ---------- 动效退让 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }
}
</final>