.page-faq {
  --faq-paper-line: rgba(11, 27, 43, 0.16);
  --faq-paper-ink: rgba(11, 27, 43, 0.76);
  --faq-diag: #0e8c7d;
  background: var(--night-deep-blue);
  color: var(--chalk-white);
  font-family: var(--font-body);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  margin-bottom: clamp(28px, 5vw, 52px);
}

.page-faq .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--step-0);
  letter-spacing: 0.06em;
}

.page-faq .crumbs__item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-faq .crumbs__item + .crumbs__item::before {
  content: "/";
  color: rgba(200, 212, 222, 0.4);
}

.page-faq .crumbs__link {
  color: var(--cyan-tint);
  text-decoration: none;
}

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

.page-faq .crumbs__current {
  color: rgba(243, 241, 234, 0.62);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 48px) 0 clamp(56px, 8vw, 100px);
  background:
    radial-gradient(110% 78% at 88% 6%, rgba(34, 224, 200, 0.13), transparent 62%),
    radial-gradient(80% 60% at 4% 100%, rgba(255, 106, 43, 0.08), transparent 60%),
    var(--night-deep-blue);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -12%;
  right: -12%;
  top: 46%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 224, 200, 0.55), transparent);
  transform: rotate(-5deg);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  align-items: center;
}

.page-faq .faq-hero__lead .eyebrow {
  margin: 0 0 14px;
  color: var(--neon-cyan);
}

.page-faq .faq-hero__lead .display {
  margin: 0 0 20px;
  max-width: 18ch;
}

.page-faq .faq-hero__lead .lede {
  margin: 0;
  max-width: 60ch;
  color: rgba(243, 241, 234, 0.76);
  line-height: 1.75;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 4vw, 36px);
}

.page-faq .faq-hero__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--hairline-strong);
  background: var(--stadium-navy);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06);
}

/* ---------- 分组索引 ---------- */
.page-faq .faq-index {
  padding: clamp(28px, 4vw, 48px) 0 clamp(32px, 4vw, 48px);
  background: var(--stadium-navy);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-index__title {
  margin: 0 0 var(--space-sm);
  color: var(--cyan-tint);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 1px;
  list-style: none;
  background: var(--hairline);
}

.page-faq .faq-index__link {
  display: grid;
  gap: 6px;
  padding: 18px 16px;
  background: var(--stadium-navy);
  color: var(--chalk-white);
  text-decoration: none;
  border-top: 2px solid transparent;
  transition: background 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(34, 224, 200, 0.1);
  border-top-color: var(--neon-cyan);
  color: var(--neon-cyan);
}

.page-faq .faq-index__num {
  font-size: var(--step-0);
  letter-spacing: 0.14em;
  color: var(--neon-cyan);
}

.page-faq .faq-index__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-2);
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.page-faq .faq-index__hint {
  font-size: var(--step-0);
  color: rgba(200, 212, 222, 0.7);
}

/* ---------- 分组容器 ---------- */
.page-faq .faq-group {
  padding: clamp(56px, 8vw, 96px) 0;
  scroll-margin-top: 96px;
  --qa-line: rgba(200, 212, 222, 0.22);
  --qa-ink: rgba(200, 212, 222, 0.84);
  --qa-accent: var(--neon-cyan);
}

.page-faq .faq-group--paper {
  background: var(--court-paper);
  color: var(--night-deep-blue);
  --qa-line: var(--faq-paper-line);
  --qa-ink: var(--faq-paper-ink);
  --qa-accent: var(--faq-diag);
}

.page-faq .faq-group--navy {
  background: var(--stadium-navy);
  color: var(--chalk-white);
}

.page-faq .faq-group--night {
  background:
    linear-gradient(180deg, rgba(18, 41, 63, 0.65), transparent 30%),
    var(--night-deep-blue);
  color: var(--chalk-white);
}

.page-faq .faq-group__head {
  max-width: 780px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-faq .faq-group__num {
  display: inline-block;
  margin-bottom: 10px;
  font-size: var(--step-0);
  letter-spacing: 0.2em;
  color: var(--qa-accent);
}

.page-faq .faq-group__head .h2 {
  margin: 0;
}

.page-faq .faq-group__lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: var(--step-1);
  line-height: 1.72;
  color: var(--qa-ink);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--qa-line);
}

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

.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 44px 20px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-2);
  line-height: 1.35;
  letter-spacing: 0.01em;
  -webkit-tap-highlight-color: transparent;
  transition: color 160ms var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--qa-accent);
  transition: transform 200ms var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
}

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--qa-accent);
  outline: none;
}

.page-faq .qa__index {
  flex: none;
  font-size: var(--step-0);
  letter-spacing: 0.12em;
  color: var(--qa-accent);
}

.page-faq .qa__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa__a {
  max-width: 72ch;
  padding: 0 0 26px;
  font-size: var(--body-size);
  line-height: 1.78;
  color: var(--qa-ink);
}

.page-faq .qa__a p {
  margin: 0 0 14px;
}

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

/* ---------- 步骤列表 ---------- */
.page-faq .steps {
  counter-reset: step;
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-faq .steps > li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 10px 12px 0;
  border-top: 1px solid var(--qa-line);
  transition: background 160ms var(--ease);
}

.page-faq .steps > li:last-child {
  border-bottom: 1px solid var(--qa-line);
}

.page-faq .steps > li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--step-0);
  letter-spacing: 0.08em;
  color: var(--qa-accent);
  padding-top: 4px;
}

.page-faq .steps > li:hover {
  background: rgba(34, 224, 200, 0.07);
}

.page-faq .faq-group--paper .steps > li:hover {
  background: rgba(14, 140, 125, 0.08);
}

/* ---------- 苹果端配图 ---------- */
.page-faq .faq-ios__media {
  margin: 0 0 clamp(28px, 4vw, 44px);
  overflow: hidden;
  border: 1px solid var(--qa-line);
  background: var(--night-deep-blue);
}

.page-faq .faq-ios__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.08);
}

/* ---------- 客服渠道 ---------- */
.page-faq .contact-block {
  display: grid;
  gap: var(--space-sm);
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: var(--space-sm);
  border-top: 2px solid var(--neon-cyan);
}

.page-faq .contact-block .h3 {
  margin: 0 0 10px;
}

.page-faq .contact-block__note {
  margin: 0;
  max-width: 48ch;
  font-size: var(--step-1);
  line-height: 1.72;
  color: rgba(200, 212, 222, 0.82);
}

.page-faq .contact-table {
  margin: 0;
}

.page-faq .contact-table__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hairline);
}

.page-faq .contact-table__row:first-child {
  border-top: 1px solid var(--hairline);
}

.page-faq .contact-table__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-0);
  letter-spacing: 0.12em;
  color: var(--cyan-tint);
}

.page-faq .contact-table__value {
  margin: 0;
  font-size: var(--body-size);
  line-height: 1.65;
  color: var(--chalk-white);
  overflow-wrap: anywhere;
}

/* ---------- 下一步入口 ---------- */
.page-faq .faq-next {
  display: grid;
  gap: 1px;
  margin-top: clamp(40px, 6vw, 72px);
  padding: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-faq .faq-next__item {
  display: grid;
  gap: 6px;
  padding: 20px 18px;
  background: var(--stadium-navy);
  color: var(--chalk-white);
  text-decoration: none;
  transition: background 160ms var(--ease), color 160ms var(--ease);
}

.page-faq .faq-next__item strong {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-2);
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.page-faq .faq-next__item span:last-child {
  font-size: var(--step-0);
  color: rgba(200, 212, 222, 0.72);
}

.page-faq .faq-next__num {
  font-size: var(--step-0);
  letter-spacing: 0.16em;
  color: var(--track-orange);
}

.page-faq .faq-next__item:hover,
.page-faq .faq-next__item:focus-visible {
  background: rgba(34, 224, 200, 0.12);
}

.page-faq .faq-next__item:hover strong,
.page-faq .faq-next__item:focus-visible strong {
  color: var(--neon-cyan);
}

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

  .page-faq .qa__a {
    padding-left: 54px;
  }

  .page-faq .contact-table__row {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-hero__media {
    transform: translateY(34px);
  }

  .page-faq .faq-index__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .contact-block {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    gap: var(--space-md);
    align-items: start;
  }

  .page-faq .faq-next {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-ios__media {
    max-width: 620px;
  }

  .page-faq .faq-group__head .h2 {
    max-width: 22ch;
  }
}

@media (min-width: 1200px) {
  .page-faq .qa__q {
    padding-top: 24px;
    padding-bottom: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__q,
  .page-faq .qa__q::after,
  .page-faq .steps > li,
  .page-faq .faq-index__link,
  .page-faq .faq-next__item {
    transition: none;
  }

  .page-faq .faq-hero__media {
    transform: none;
  }
}