.page-faq {
  --faq-panel-bg: rgba(8, 26, 21, .78);
  --faq-side-sticky: 92px;
  position: relative;
  background: var(--ink-800);
  color: var(--bone);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .guide-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .guide-hero__checker {
  position: absolute;
  top: -140px;
  right: -120px;
  width: 460px;
  height: 460px;
  border-radius: var(--r-lg);
  background-image:
    linear-gradient(45deg, rgba(200, 162, 74, .16) 25%, transparent 25%, transparent 75%, rgba(200, 162, 74, .16) 75%),
    linear-gradient(45deg, rgba(200, 162, 74, .16) 25%, transparent 25%, transparent 75%, rgba(200, 162, 74, .16) 75%);
  background-size: 52px 52px, 52px 52px;
  background-position: 0 0, 26px 26px;
  transform: rotate(14deg);
  opacity: .55;
  pointer-events: none;
}

.page-faq .guide-hero__grid {
  margin-top: clamp(22px, 3vw, 34px);
  display: grid;
  gap: 28px;
  align-items: start;
  position: relative;
}

.page-faq .guide-hero .eyebrow {
  margin: 0 0 14px;
  font-size: 12.5px;
  letter-spacing: .22em;
  color: var(--gold);
}

.page-faq .guide-hero h1 {
  margin: 0 0 18px;
  max-width: 20em;
  font-size: clamp(26px, 5.4vw, 46px);
  line-height: 1.26;
  letter-spacing: .04em;
  color: var(--bone);
  font-weight: 600;
}

.page-faq .guide-hero .lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.82;
  color: var(--muted);
}

.page-faq .hero-facts {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .hero-facts li {
  padding-left: 14px;
  border-left: 2px solid var(--line-gold);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .fact-num {
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--neon);
  white-space: nowrap;
}

.page-faq .media-frame {
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-md);
  border: 1px solid var(--line-gold);
  background: var(--ink-900);
}

.page-faq .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

/* ---------- 分段切换 ---------- */
.page-faq .guide-switch {
  padding: clamp(32px, 5vw, 56px) 0 clamp(40px, 6vw, 76px);
  background: linear-gradient(180deg, rgba(8, 26, 21, 0) 0%, rgba(8, 26, 21, .6) 100%);
}

.page-faq .segmented {
  display: flex;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line-gold);
  border-radius: var(--pill);
  background: var(--ink-900);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

.page-faq .segmented__btn {
  flex: 1 0 auto;
  padding: 11px 20px;
  border: 0;
  border-radius: var(--pill);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: .06em;
  white-space: nowrap;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}

.page-faq .segmented__btn:hover {
  color: var(--bone);
}

.page-faq .segmented__btn[aria-selected="true"] {
  background: var(--neon);
  color: var(--ink-on-neon);
  font-weight: 600;
}

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

.page-faq .segmented__panel {
  margin-top: clamp(28px, 4vw, 46px);
  animation: faq-panel-in 160ms ease both;
  outline: none;
}

.page-faq .segmented__panel[hidden] {
  display: none;
}

.page-faq .segmented__panel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 10px;
  border-radius: var(--r-md);
}

@keyframes faq-panel-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 面板骨架 ---------- */
.page-faq .panel-grid {
  display: grid;
  gap: 24px;
}

.page-faq .panel-side__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(34px, 6vw, 42px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--gold);
}

.page-faq .panel-side__rule {
  display: block;
  width: 46px;
  height: 3px;
  margin: 14px 0 18px;
  border-radius: var(--pill);
  background: var(--gold);
}

.page-faq .panel-side__title {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.4;
  letter-spacing: .1em;
  color: var(--bone);
  font-weight: 600;
}

.page-faq .panel-side__text {
  margin: 0 0 18px;
  max-width: 32em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

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

/* ---------- 问答块 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .qa:first-of-type {
  border-top: 1px solid var(--line-gold);
}

.page-faq .qa[open] {
  background: linear-gradient(90deg, rgba(200, 162, 74, .08) 0%, rgba(200, 162, 74, 0) 72%);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 6px;
  min-height: 44px;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15.5px, 1.8vw, 17px);
  line-height: 1.55;
  font-weight: 500;
  color: var(--bone);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--r-sm);
}

.page-faq .qa__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--gold-soft);
  transition: transform 160ms ease, color 160ms ease;
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(45deg);
  color: var(--neon);
}

.page-faq .qa__a {
  padding: 0 6px 22px 6px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-faq .qa__a p + p {
  margin-top: 12px;
}

.page-faq .steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 14px 0 0;
  padding: 0 0 0 18px;
  border-left: 2px solid var(--line-gold-strong);
  display: grid;
  gap: 12px;
}

.page-faq .steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 30px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--bone);
}

.page-faq .steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold);
}

/* ---------- 胶囊链接 ---------- */
.page-faq .qa__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-faq .guide-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--pill);
  border: 1px solid var(--line-gold);
  background: rgba(200, 162, 74, .07);
  color: var(--gold-soft);
  font-size: 13.5px;
  line-height: 1.4;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, color 160ms ease, background 160ms ease;
}

.page-faq .guide-chip::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
}

.page-faq .guide-chip:hover {
  transform: translateY(-2px);
  border-color: var(--line-gold-strong);
  background: rgba(200, 162, 74, .14);
  color: var(--bone);
}

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

/* ---------- 求助区 ---------- */
.page-faq .guide-help {
  position: relative;
  padding: clamp(40px, 6vw, 74px) 0 clamp(48px, 7vw, 90px);
  background: var(--ink-900);
  border-top: 1px solid var(--line-gold);
}

.page-faq .guide-help::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: min(40%, 440px);
  background: linear-gradient(120deg, rgba(47, 199, 216, .12) 0%, rgba(47, 199, 216, 0) 72%);
  pointer-events: none;
}

.page-faq .help-grid {
  position: relative;
  display: grid;
  gap: 28px;
}

.page-faq .help-num {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(34px, 6vw, 42px);
  line-height: 1;
  color: var(--gold);
}

.page-faq .help-copy h2 {
  margin: 0 0 16px;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.36;
  letter-spacing: .08em;
  color: var(--bone);
  font-weight: 600;
}

.page-faq .help-copy p {
  margin: 0 0 14px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .help-checklist {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .help-checklist li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--bone);
}

.page-faq .help-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 3px;
  background: var(--neon);
}

.page-faq .help-panel {
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line-gold);
  border-radius: var(--r-lg);
  background: var(--ink-700);
}

.page-faq .help-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .help-list__item {
  display: grid;
  gap: 5px;
}

.page-faq .help-list__key {
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-faq .help-list__val {
  font-family: var(--font-mono);
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--bone);
  text-decoration: none;
  word-break: break-word;
}

.page-faq a.help-list__val:hover {
  color: var(--neon);
}

.page-faq a.help-list__val:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.page-faq .help-note {
  margin: 0;
  padding: 14px 16px;
  border: 1px dashed var(--line-gold-strong);
  border-radius: var(--r-sm);
  background: rgba(200, 162, 74, .06);
  font-size: 14px;
  line-height: 1.8;
  color: var(--gold-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .qa__a {
    padding-left: 44px;
    padding-right: 28px;
    max-width: 44em;
  }
}

@media (min-width: 920px) {
  .page-faq .guide-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .help-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(36px, 5vw, 64px);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .panel-grid {
    grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .panel-side {
    position: sticky;
    top: var(--faq-side-sticky);
  }
}

@media (max-width: 767px) {
  .page-faq .guide-hero__checker {
    top: -96px;
    right: -110px;
    width: 260px;
    height: 260px;
    background-size: 38px 38px, 38px 38px;
    background-position: 0 0, 19px 19px;
  }

  .page-faq .segmented__btn {
    padding: 10px 16px;
    font-size: 13.5px;
  }

  .page-faq .qa__q {
    padding: 16px 4px;
  }
}

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

  .page-faq .qa__q::after,
  .page-faq .guide-chip {
    transition: none;
  }

  .page-faq .guide-chip:hover {
    transform: none;
  }
}