.page-faq {
  --faq-line: rgba(29, 58, 99, .9);
  --faq-cyan-soft: rgba(44, 229, 210, .38);
  --faq-panel-bg: linear-gradient(165deg, rgba(18, 41, 74, .96), rgba(10, 26, 47, .96));
  --faq-body-text: rgba(234, 241, 248, .84);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(34px, 6vw, 78px) 0 clamp(22px, 3.5vw, 38px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(34px, 6vw, 78px);
  width: 2px;
  height: clamp(60px, 10vw, 108px);
  background: linear-gradient(to bottom, var(--xy-cyan), var(--xy-gold) 60%, transparent);
  opacity: .6;
  pointer-events: none;
}

.page-faq .faq-hero .xy-eyebrow {
  display: block;
  margin: 0 0 14px;
  color: var(--xy-cyan);
}

.page-faq .faq-hero .xy-h1 {
  margin: 0 0 20px;
  max-width: 20ch;
}

.page-faq .faq-hero .xy-lead {
  margin: 0;
  max-width: 64ch;
  color: var(--faq-body-text);
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--xy-mist);
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding-left: 14px;
  border-left: 2px solid var(--faq-cyan-soft);
}

.page-faq .faq-hero__num {
  font-family: var(--xy-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--xy-cyan);
}

/* ---------- 首屏主图 ---------- */
.page-faq .faq-heromap {
  margin: 0 0 clamp(32px, 5vw, 58px);
  border: 1px solid var(--faq-line);
  border-radius: var(--xy-r-l);
  overflow: hidden;
  background: var(--xy-indigo);
}

.page-faq .faq-heromap img {
  display: block;
  width: 100%;
  height: clamp(210px, 38vw, 440px);
  object-fit: cover;
  object-position: center 32%;
  opacity: .92;
}

.page-faq .faq-heromap .xy-figure__cap {
  display: block;
  padding: 12px 18px;
  background: rgba(6, 16, 31, .78);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--xy-mist);
}

/* ---------- 分类胶囊 ---------- */
.page-faq .faq-tabs {
  margin: 0 0 clamp(28px, 4.5vw, 48px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-tabs__track {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 2px 2px 14px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.page-faq .faq-tab {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: 9px 18px;
  border: 1px solid var(--faq-cyan-soft);
  border-radius: var(--xy-pill);
  background: rgba(44, 229, 210, .06);
  color: var(--xy-cyan);
  font-size: 13.5px;
  letter-spacing: .04em;
  text-decoration: none;
  transition: transform .18s var(--xy-ease), background-color .18s var(--xy-ease),
              color .18s var(--xy-ease), border-color .18s var(--xy-ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  background: var(--xy-cyan);
  border-color: var(--xy-cyan);
  color: var(--xy-deep);
  transform: translateY(-3px);
  outline: none;
}

/* ---------- 分类区 ---------- */
.page-faq .faq-section {
  padding: 0 0 clamp(34px, 5.5vw, 62px);
  scroll-margin-top: 112px;
}

.page-faq .faq-section__head {
  max-width: 68ch;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .faq-section__head::before {
  content: "";
  display: block;
  width: 54px;
  height: 3px;
  margin-bottom: 16px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--xy-cyan), var(--xy-gold));
}

.page-faq .faq-section__head .xy-eyebrow {
  display: block;
  margin: 0 0 10px;
  color: var(--xy-cyan);
}

.page-faq .faq-section__head .xy-h2 {
  margin: 0 0 12px;
}

.page-faq .faq-section__intro {
  margin: 0;
  color: var(--xy-mist);
  font-size: 15.5px;
  line-height: 1.85;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-panel {
  position: relative;
  border: 1px solid var(--faq-line);
  border-radius: var(--xy-r-m);
  background: var(--faq-panel-bg);
  box-shadow: var(--xy-shadow-card);
  overflow: hidden;
  transition: border-color .22s var(--xy-ease);
}

.page-faq .faq-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(to bottom, var(--xy-cyan), var(--xy-gold));
  opacity: 0;
  transition: opacity .22s var(--xy-ease);
}

.page-faq .faq-panel[open] {
  border-color: rgba(44, 229, 210, .45);
}

.page-faq .faq-panel[open]::before {
  opacity: 1;
}

.page-faq .faq-panel > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 20px;
  cursor: pointer;
  list-style: none;
  color: var(--xy-white);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
}

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

.page-faq .faq-panel > summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--xy-mono);
  font-size: 18px;
  line-height: 1.35;
  color: var(--xy-cyan);
}

.page-faq .faq-panel[open] > summary::after {
  content: "–";
}

.page-faq .faq-panel > summary:focus-visible {
  outline: 2px solid var(--xy-cyan);
  outline-offset: -3px;
}

.page-faq .faq-panel__body {
  padding: 16px 20px 20px;
  border-top: 1px solid rgba(29, 58, 99, .72);
  color: var(--faq-body-text);
  font-size: 15px;
  line-height: 1.9;
  animation: faq-panel-in .2s var(--xy-ease) both;
}

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

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

@keyframes faq-panel-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 步骤流程 ---------- */
.page-faq .faq-steps {
  counter-reset: faqstep;
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  position: relative;
  padding: 10px 14px 10px 48px;
  border: 1px solid rgba(44, 229, 210, .16);
  border-radius: var(--xy-r-s);
  background: rgba(44, 229, 210, .05);
  color: rgba(234, 241, 248, .92);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 14px;
  top: 10px;
  font-family: var(--xy-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--xy-cyan);
}

.page-faq .faq-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 22px;
  bottom: -9px;
  width: 1px;
  height: 9px;
  background: rgba(44, 229, 210, .34);
}

/* ---------- 结论块 ---------- */
.page-faq .faq-note {
  margin: 14px 0 0;
  padding: 13px 18px;
  border-radius: var(--xy-r-s);
  border-left: 4px solid var(--xy-gold);
  background: var(--xy-fog);
  color: var(--xy-deep);
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- 版本示意图 ---------- */
.page-faq .faq-versionmap {
  margin: 8px 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--xy-r-m);
  overflow: hidden;
  background: var(--xy-indigo);
}

.page-faq .faq-versionmap img {
  display: block;
  width: 100%;
  height: clamp(160px, 28vw, 290px);
  object-fit: cover;
}

.page-faq .faq-versionmap .xy-figure__cap {
  display: block;
  padding: 10px 16px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--xy-mist);
}

/* ---------- 尾屏行动点 ---------- */
.page-faq .faq-cta {
  position: relative;
  margin: 0 0 clamp(44px, 7vw, 88px);
  padding: clamp(26px, 4.5vw, 52px) clamp(20px, 3.6vw, 46px);
  border: 1px solid rgba(255, 107, 69, .34);
  border-radius: var(--xy-r-l);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(255, 107, 69, .18), transparent 58%),
    linear-gradient(140deg, var(--xy-indigo), var(--xy-ink));
  display: grid;
  gap: 16px;
  justify-items: start;
  overflow: hidden;
  transition: box-shadow .3s var(--xy-ease), border-color .3s var(--xy-ease);
}

.page-faq .faq-cta::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(247, 183, 51, .22), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-cta.is-in {
  border-color: rgba(255, 107, 69, .62);
  box-shadow: 0 42px 88px -56px rgba(255, 107, 69, .78);
}

.page-faq .faq-cta .xy-eyebrow {
  margin: 0;
  color: var(--xy-gold);
}

.page-faq .faq-cta .xy-h2 {
  margin: 0;
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 62ch;
  color: var(--faq-body-text);
  font-size: 15.5px;
  line-height: 1.85;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-panel > summary {
    padding: 19px 24px;
    font-size: 16px;
  }

  .page-faq .faq-panel__body {
    padding: 18px 24px 24px;
  }

  .page-faq .faq-steps li {
    padding: 11px 16px 11px 52px;
  }

  .page-faq .faq-steps li::before {
    left: 16px;
    top: 11px;
  }

  .page-faq .faq-steps li:not(:last-child)::after {
    left: 24px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-section {
    padding-bottom: clamp(48px, 6vw, 74px);
  }

  .page-faq .faq-hero__facts {
    gap: 12px 42px;
  }

  .page-faq .faq-list {
    max-width: 78ch;
  }

  .page-faq .faq-cta {
    padding-right: clamp(46px, 6vw, 84px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-panel__body {
    animation: none;
  }

  .page-faq .faq-tab:hover,
  .page-faq .faq-tab:focus-visible {
    transform: none;
  }
}