/* ===== 帮助中心 · 页面专属样式 ===== */
.page-faq {
  --faq-hair: rgba(154, 165, 177, .35);
  --faq-gold-soft: rgba(201, 162, 39, .38);
  --faq-gap: clamp(20px, 3.5vw, 40px);
  background: var(--paper);
  color: var(--text);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-lead {
  position: relative;
  background: var(--ink-900);
  color: var(--paper);
  padding: clamp(18px, 3vw, 30px) 0 clamp(40px, 6vw, 76px);
  overflow: hidden;
}
.page-faq .faq-lead::after {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -160px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 162, 39, .18), rgba(201, 162, 39, 0) 68%);
  pointer-events: none;
}
.page-faq .faq-lead .breadcrumb__link {
  color: rgba(244, 241, 233, .68);
}
.page-faq .faq-lead .breadcrumb__link[aria-current="page"] {
  color: var(--gold-light);
}
.page-faq .faq-lead .breadcrumb__sep {
  color: rgba(244, 241, 233, .38);
}
.page-faq .faq-lead__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
  margin-top: clamp(20px, 3vw, 34px);
  position: relative;
  z-index: 1;
}
.page-faq .faq-lead .eyebrow {
  color: var(--gold-light);
  letter-spacing: .14em;
  margin: 0 0 14px;
}
.page-faq .faq-lead h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: .01em;
  margin: 0;
  color: var(--paper);
}
.page-faq .faq-lead h1::after {
  content: "";
  display: block;
  width: 76px;
  height: 3px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--gold), rgba(201, 162, 39, 0));
}
.page-faq .faq-lead__lede {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 241, 233, .8);
}
.page-faq .faq-lead__media {
  border: 1px solid var(--faq-gold-soft);
  box-shadow: 0 22px 46px -34px rgba(0, 0, 0, .9);
}

/* ---------- 三步走 ---------- */
.page-faq .steps {
  list-style: none;
  margin: clamp(34px, 5vw, 60px) 0 0;
  padding: 0;
  display: grid;
  gap: 30px;
  position: relative;
  z-index: 1;
}
.page-faq .steps__item {
  position: relative;
  padding-top: 40px;
  border-top: 1px dashed var(--faq-gold-soft);
}
.page-faq .steps__num {
  position: absolute;
  top: -19px;
  left: 0;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink-800);
  border: 1px solid var(--gold);
  color: var(--gold-light);
  font-size: 13px;
  letter-spacing: .06em;
}
.page-faq .steps__title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 10px;
  color: var(--paper);
}
.page-faq .steps__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 241, 233, .72);
}

/* ---------- 场景索引 ---------- */
.page-faq .faq-scenes {
  padding: clamp(38px, 6vw, 72px) 0;
  background: var(--paper);
  border-bottom: 1px solid var(--paper-2);
}
.page-faq .faq-scenes .section-head__title {
  color: var(--ink-900);
}
.page-faq .faq-scenes .eyebrow {
  color: var(--red);
  letter-spacing: .14em;
}
.page-faq .faq-scenes__grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 34px);
  grid-template-columns: 1fr;
}
.page-faq .scene {
  display: block;
  padding: 16px 18px 18px;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border: 1px solid var(--paper-2);
  border-left: 3px solid var(--scene, var(--slate));
  border-radius: var(--radius);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
}
.page-faq .scene:hover,
.page-faq .scene:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.page-faq .scene__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.page-faq .scene__name {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-900);
}
.page-faq .scene__count {
  font-size: 13px;
  color: var(--slate);
}
.page-faq .scene__desc {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding: clamp(40px, 6vw, 78px) 0;
  background: var(--paper);
  scroll-margin-top: 90px;
}
.page-faq .faq-group--alt {
  background: var(--paper-2);
}
.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  margin-bottom: clamp(24px, 4vw, 40px);
}
.page-faq .faq-group__badge {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--gold);
  color: var(--gold-light);
  font-size: 14px;
  letter-spacing: .06em;
}
.page-faq .faq-group__title {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink-900);
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-gold-soft);
}
.page-faq .faq-group__lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 60ch;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}
.page-faq .qa {
  background: #fff;
  border-left: 3px solid var(--red);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(15, 59, 50, .06);
}
.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.62;
  color: var(--text);
  transition: color .18s var(--ease), background .18s var(--ease);
}
.page-faq .qa__q::-webkit-details-marker {
  display: none;
}
.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.3;
  color: var(--gold);
}
.page-faq .qa[open] .qa__q::after {
  content: "\2013";
}
.page-faq .qa[open] .qa__q {
  color: var(--ink-900);
}
.page-faq .qa__q:hover {
  background: rgba(201, 162, 39, .07);
}
.page-faq .qa__idx {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 12px;
  color: var(--slate);
}
.page-faq .qa__text {
  min-width: 0;
}
.page-faq .qa__a {
  margin: 0 18px;
  padding: 14px 0 18px;
  border-top: 1px solid var(--faq-hair);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text);
  max-width: 64ch;
}
.page-faq .qa__a p {
  margin: 0;
}

/* ---------- 下载与版本核对：图文分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(22px, 3.5vw, 38px);
}
.page-faq .faq-split__media {
  border: 1px solid var(--paper-2);
}

/* ---------- 联络咨询 ---------- */
.page-faq .faq-contact {
  padding: clamp(40px, 6vw, 78px) 0;
  background: var(--ink-900);
  color: var(--paper);
  scroll-margin-top: 90px;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), rgba(201, 162, 39, 0) 70%);
}
.page-faq .faq-contact .eyebrow {
  color: var(--gold-light);
  letter-spacing: .14em;
}
.page-faq .faq-contact .section-head__title {
  color: var(--paper);
}
.page-faq .faq-contact .section-head__note {
  color: rgba(244, 241, 233, .7);
  max-width: 62ch;
}
.page-faq .contact-strip {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 34px);
  grid-template-columns: 1fr;
}
.page-faq .contact-strip__item {
  padding: 16px 18px 18px;
  background: rgba(22, 70, 58, .72);
  border: 1px solid var(--faq-gold-soft);
  border-radius: var(--radius);
}
.page-faq .contact-strip__label {
  display: block;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold-light);
}
.page-faq .contact-strip__value {
  display: block;
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}
.page-faq .contact-strip__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(244, 241, 233, .62);
}
.page-faq .qa-list--contact {
  margin-top: clamp(26px, 4vw, 42px);
}
.page-faq .qa-list--contact .qa {
  background: var(--ink-800);
  border-left-color: var(--red-light);
  box-shadow: none;
  border: 1px solid rgba(201, 162, 39, .22);
  border-left-width: 3px;
}
.page-faq .qa-list--contact .qa__q {
  color: var(--paper);
}
.page-faq .qa-list--contact .qa__q:hover {
  background: rgba(201, 162, 39, .1);
}
.page-faq .qa-list--contact .qa[open] .qa__q {
  color: var(--gold-light);
}
.page-faq .qa-list--contact .qa__idx {
  color: rgba(244, 241, 233, .45);
}
.page-faq .qa-list--contact .qa__a {
  border-top-color: rgba(201, 162, 39, .22);
  color: rgba(244, 241, 233, .82);
}

/* ---------- 兜底入口 ---------- */
.page-faq .faq-fallback {
  padding: clamp(36px, 5vw, 64px) 0;
  background: var(--paper);
}
.page-faq .faq-fallback__inner {
  display: grid;
  gap: 22px;
  align-items: center;
  padding: clamp(22px, 3.5vw, 36px);
  background: #fff;
  border: 1px solid var(--paper-2);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
}
.page-faq .faq-fallback__title {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.8vw, 26px);
  font-weight: 800;
  color: var(--ink-900);
  margin: 0 0 10px;
}
.page-faq .faq-fallback__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 62ch;
}
.page-faq .faq-fallback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-scenes__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .contact-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 800px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 3vw, 46px);
  }
  .page-faq .faq-scenes__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .contact-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-fallback__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-lead__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-split__media {
    position: sticky;
    top: 96px;
  }
  .page-faq .qa__q {
    font-size: 16px;
    padding: 18px 22px;
  }
  .page-faq .qa__a {
    margin: 0 22px;
    font-size: 15px;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .scene,
  .page-faq .qa__q {
    transition: none;
  }
  .page-faq .scene:hover,
  .page-faq .scene:focus-visible {
    transform: none;
  }
}

.page-faq {
  --scene: currentColor;
}