.page-faq {
  --faq-card-bg: rgba(16, 21, 40, .66);
  --faq-deep-bg: rgba(7, 6, 11, .78);
  --faq-accent: var(--pg-violet);
  position: relative;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(18px, 3.5vw, 30px) 0 clamp(34px, 5vw, 62px);
  overflow: hidden;
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 92%;
  background:
    radial-gradient(58% 66% at 10% 26%, rgba(138, 59, 255, .36), transparent 68%),
    radial-gradient(48% 58% at 86% 6%, rgba(47, 123, 255, .22), transparent 66%),
    radial-gradient(40% 50% at 62% 74%, rgba(37, 245, 208, .12), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(180deg, rgba(242, 243, 247, .04) 0 1px, transparent 1px 5px);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero__kick {
  margin: 0;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--pg-font-mono);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--pg-cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--pg-font-head);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 60px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--pg-paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-hero__hl {
  display: inline-block;
  background: linear-gradient(102deg, var(--pg-violet) 0%, var(--pg-blue) 52%, var(--pg-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 40em;
  font-size: clamp(16px, 1.6vw, 17px);
  line-height: 1.88;
  color: rgba(242, 243, 247, .84);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--pg-line);
}

.page-faq .faq-hero__stats .pg-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-stat__value {
  font-family: var(--pg-font-mono);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--pg-cyan);
}

.page-faq .faq-hero__stats .pg-stat__label {
  font-size: 13px;
  color: var(--pg-muted);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__media {
  aspect-ratio: 2 / 1;
  border-radius: var(--pg-radius-l);
  overflow: hidden;
  border: 1px solid var(--pg-line);
  background: var(--faq-deep-bg);
  box-shadow: var(--pg-shadow);
}

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

.page-faq .faq-hero__figure .pg-figure__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pg-muted);
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  padding-bottom: clamp(44px, 7vw, 88px);
}

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

.page-faq .faq-main .pg-section + .pg-section {
  margin-top: clamp(34px, 5vw, 62px);
}

/* ---------- 分类导航 ---------- */
.page-faq .faq-nav__title {
  margin: 0 0 10px;
  font-family: var(--pg-font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: -.01em;
  color: var(--pg-paper);
}

.page-faq .faq-nav__lead {
  margin: 0 0 22px;
  max-width: 34em;
  line-height: 1.85;
  color: var(--pg-muted);
}

.page-faq .faq-cats {
  display: grid;
  gap: 14px;
}

.page-faq .faq-cat-card {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 18px 20px 18px 26px;
  border-radius: var(--pg-radius-m);
  border: 1px solid var(--pg-line);
  background: linear-gradient(158deg, var(--faq-card-bg), var(--faq-deep-bg));
  text-decoration: none;
  color: inherit;
  transition: border-color .2s var(--pg-ease), box-shadow .2s var(--pg-ease), transform .2s var(--pg-ease);
}

.page-faq .faq-cat-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--faq-accent);
  box-shadow: 0 0 14px var(--faq-accent);
}

.page-faq .faq-cat-card:focus-visible {
  outline: 2px solid var(--pg-cyan);
  outline-offset: 3px;
}

.page-faq .faq-cats > .faq-cat-card:nth-child(1) { --faq-accent: var(--pg-violet); }
.page-faq .faq-cats > .faq-cat-card:nth-child(2) { --faq-accent: var(--pg-blue); }
.page-faq .faq-cats > .faq-cat-card:nth-child(3) { --faq-accent: var(--pg-cyan); }
.page-faq .faq-cats > .faq-cat-card:nth-child(4) { --faq-accent: var(--pg-gold); }

.page-faq .faq-cat-card__num {
  font-family: var(--pg-font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--faq-accent);
}

.page-faq .faq-cat-card__name {
  font-family: var(--pg-font-head);
  font-weight: 800;
  font-size: 20px;
  color: var(--pg-paper);
}

.page-faq .faq-cat-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--pg-muted);
}

/* ---------- 分类区 ---------- */
.page-faq .faq-cat {
  scroll-margin-top: calc(var(--pg-header-h) + 24px);
}

.page-faq .faq-cat__head {
  position: relative;
  padding-left: 66px;
  margin-bottom: 22px;
}

.page-faq .faq-cat__num {
  position: absolute;
  left: 0;
  top: -6px;
  font-family: var(--pg-font-mono);
  font-size: clamp(38px, 6vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(138, 59, 255, .75);
}

.page-faq .faq-cat__title {
  margin: 0 0 8px;
  font-family: var(--pg-font-head);
  font-weight: 900;
  font-size: clamp(23px, 3.2vw, 32px);
  letter-spacing: -.01em;
  color: var(--pg-paper);
}

.page-faq .faq-cat__lead {
  margin: 0;
  max-width: 40em;
  line-height: 1.85;
  color: var(--pg-muted);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  display: block;
}

.page-faq .faq-item {
  border: 1px solid var(--pg-line);
  border-radius: var(--pg-radius-m);
  background: var(--faq-card-bg);
  transition: border-color .2s var(--pg-ease), box-shadow .2s var(--pg-ease), background .2s var(--pg-ease);
}

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item[open] {
  border-color: rgba(138, 59, 255, .62);
  background: linear-gradient(160deg, rgba(16, 21, 40, .9), rgba(7, 6, 11, .82));
  box-shadow: inset 0 0 0 1px rgba(138, 59, 255, .22), 0 14px 34px rgba(6, 4, 16, .5);
}

.page-faq .faq-item > summary {
  position: relative;
  padding: 17px 50px 17px 18px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.6;
  color: var(--pg-paper);
  transition: color .2s var(--pg-ease);
}

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

.page-faq .faq-item > summary::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -7px;
  border-right: 2px solid var(--pg-cyan);
  border-bottom: 2px solid var(--pg-cyan);
  transform: rotate(45deg);
  transition: transform .2s var(--pg-ease);
}

.page-faq .faq-item[open] > summary::after {
  transform: rotate(225deg);
  margin-top: -2px;
}

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

.page-faq .faq-item .pg-faq__a {
  padding: 0 18px 18px;
}

.page-faq .faq-item .pg-faq__a p {
  margin: 0;
  max-width: 38em;
  line-height: 1.88;
  color: rgba(242, 243, 247, .82);
}

.page-faq .faq-item .pg-faq__a a {
  color: var(--pg-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item .pg-faq__a a:hover {
  color: var(--pg-cyan);
}

.page-faq .faq-num {
  color: var(--pg-gold);
  font-weight: 700;
}

/* ---------- 工单图解 ---------- */
.page-faq .faq-flow-figure {
  margin: 0 0 20px;
}

.page-faq .faq-flow-media {
  aspect-ratio: 3 / 2;
  border-radius: var(--pg-radius-l);
  overflow: hidden;
  border: 1px solid var(--pg-line);
  background: var(--faq-deep-bg);
}

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

.page-faq .faq-flow-figure .pg-figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pg-muted);
}

.page-faq .faq-flow {
  margin-bottom: 22px;
  padding: clamp(16px, 2.4vw, 24px);
  border-radius: var(--pg-radius-l);
  border: 1px solid var(--pg-line);
  background:
    linear-gradient(180deg, rgba(90, 43, 196, .16), rgba(7, 6, 11, .86) 58%),
    var(--faq-deep-bg);
}

.page-faq .faq-flow__list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqflow;
}

.page-faq .faq-flow__node {
  position: relative;
  padding: 18px 18px 20px;
  border-radius: var(--pg-radius-m);
  border: 1px solid var(--pg-line);
  background: rgba(7, 6, 11, .74);
}

.page-faq .faq-flow__num {
  display: inline-block;
  font-family: var(--pg-font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--pg-gold);
}

.page-faq .faq-flow__title {
  margin: 8px 0 8px;
  font-family: var(--pg-font-head);
  font-weight: 800;
  font-size: 19px;
  color: var(--pg-paper);
}

.page-faq .faq-flow__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pg-muted);
}

/* ---------- 收尾区块 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(34px, 5vw, 62px);
  padding: clamp(22px, 3.4vw, 38px);
  border-radius: var(--pg-radius-l);
  border: 1px solid rgba(255, 194, 75, .28);
  background:
    radial-gradient(70% 130% at 100% 0%, rgba(255, 194, 75, .16), transparent 62%),
    linear-gradient(150deg, rgba(16, 21, 40, .96), rgba(7, 6, 11, .92));
}

.page-faq .faq-cta__title {
  margin: 0 0 12px;
  font-family: var(--pg-font-head);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 30px);
  color: var(--pg-paper);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 40em;
  line-height: 1.88;
  color: rgba(242, 243, 247, .82);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-side {
  min-width: 0;
}

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

.page-faq .faq-toc {
  padding: 18px;
  border-radius: var(--pg-radius-m);
  border: 1px solid var(--pg-line);
  background: var(--faq-card-bg);
}

.page-faq .faq-toc .pg-toc__title {
  margin: 0 0 12px;
  font-family: var(--pg-font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--pg-muted);
}

.page-faq .faq-toc .pg-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc__item + .faq-toc__item {
  margin-top: 4px;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--pg-radius-s);
  font-size: 15px;
  color: rgba(242, 243, 247, .86);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background .2s var(--pg-ease), border-color .2s var(--pg-ease), color .2s var(--pg-ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  background: rgba(138, 59, 255, .16);
  color: var(--pg-paper);
  outline: none;
}

.page-faq .faq-toc__link[aria-current="true"] {
  border-left-color: var(--pg-cyan);
  background: rgba(37, 245, 208, .1);
  color: var(--pg-paper);
}

.page-faq .faq-toc__num {
  font-family: var(--pg-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--pg-violet);
}

.page-faq .faq-toc__link[aria-current="true"] .faq-toc__num {
  color: var(--pg-cyan);
}

.page-faq .faq-help-card {
  padding: 18px;
  border-radius: var(--pg-radius-m);
  border: 1px solid rgba(255, 194, 75, .3);
  background: linear-gradient(160deg, rgba(255, 194, 75, .12), rgba(7, 6, 11, .9));
}

.page-faq .faq-help-card__label {
  margin: 0 0 8px;
  font-family: var(--pg-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--pg-gold);
}

.page-faq .faq-help-card__text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 243, 247, .84);
}

.page-faq .faq-help-card__btn {
  width: 100%;
  justify-content: center;
  text-align: center;
}

.page-faq .faq-help-card__meta {
  margin: 12px 0 0;
  font-family: var(--pg-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--pg-muted);
}

.page-faq .faq-more {
  padding: 18px;
  border-radius: var(--pg-radius-m);
  border: 1px solid var(--pg-line);
  background: var(--faq-deep-bg);
}

.page-faq .faq-more__title {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--pg-paper);
}

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

.page-faq .faq-more__list li + li {
  margin-top: 8px;
}

.page-faq .faq-more__list a {
  font-size: 14px;
  line-height: 1.7;
  color: var(--pg-blue);
  text-decoration: none;
}

.page-faq .faq-more__list a:hover,
.page-faq .faq-more__list a:focus-visible {
  color: var(--pg-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-cat-card:hover {
    border-color: rgba(138, 59, 255, .55);
    box-shadow: 0 16px 36px rgba(6, 4, 16, .5), inset 0 0 0 1px rgba(138, 59, 255, .18);
    transform: translateY(-2px);
  }

  .page-faq .faq-item:hover {
    border-color: rgba(90, 43, 196, .8);
  }
}

@media (min-width: 820px) {
  .page-faq .faq-flow__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-flow__node:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 42px;
    right: -24px;
    width: 24px;
    height: 2px;
    background: linear-gradient(90deg, var(--pg-violet), var(--pg-cyan));
  }

  .page-faq .faq-cat__head {
    padding-left: 88px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
  }

  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: start;
  }

  .page-faq .faq-side__sticky {
    position: sticky;
    top: calc(var(--pg-header-h) + 18px);
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero__stats {
    gap: 12px 20px;
  }

  .page-faq .faq-item > summary {
    padding: 15px 44px 15px 15px;
    font-size: 15px;
  }

  .page-faq .faq-item .pg-faq__a {
    padding: 0 15px 16px;
  }

  .page-faq .faq-hero__actions .pg-btn,
  .page-faq .faq-cta__actions .pg-btn {
    flex: 1 1 auto;
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat-card,
  .page-faq .faq-item,
  .page-faq .faq-toc__link,
  .page-faq .faq-item > summary::after {
    transition: none;
  }

  .page-faq .faq-cat-card:hover {
    transform: none;
  }
}