.page-faq {
  --faq-text: #F4F1E8;
  --faq-dim: rgba(244, 241, 232, .76);
  --faq-line: rgba(201, 162, 39, .38);
  --faq-panel: rgba(255, 255, 255, .045);
  --faq-panel-border: rgba(201, 162, 39, .52);
  --faq-hover: rgba(240, 217, 140, .09);
  --faq-shadow: 4px 4px 0 rgba(0, 0, 0, .5);
  background: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 24px 0 52px;
  background:
    radial-gradient(620px 320px at 86% 8%, rgba(53, 224, 208, .13), transparent 70%),
    radial-gradient(520px 280px at 4% 92%, rgba(201, 162, 39, .11), transparent 72%),
    var(--ink);
  border-bottom: 2px solid var(--gold);
  color: var(--paper);
}

.page-faq .crumb {
  margin-bottom: 22px;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  margin-top: 26px;
}

.page-faq .faq-hero__kicker {
  color: var(--gold-soft);
  font-size: 12px;
  letter-spacing: .1em;
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  transform: rotate(-1.5deg);
  transform-origin: left center;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  color: rgba(244, 241, 232, .82);
  max-width: 34ch;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

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

/* ---------- 分组通用 ---------- */
.page-faq .faq-group {
  padding: 46px 0 54px;
  background: var(--green);
  color: var(--faq-text);
}

.page-faq .faq-group--green {
  background: var(--green);
}

.page-faq .faq-group--purple {
  background: var(--purple);
}

.page-faq .faq-group--wine {
  background: var(--wine);
}

.page-faq .faq-group--ink {
  background: var(--ink);
}

.page-faq .faq-group--paper {
  background: var(--paper);
  --faq-text: var(--ink);
  --faq-dim: rgba(14, 43, 37, .78);
  --faq-line: rgba(14, 43, 37, .2);
  --faq-panel: #FFFFFF;
  --faq-panel-border: var(--green);
  --faq-hover: rgba(14, 43, 37, .07);
  --faq-shadow: 4px 4px 0 rgba(14, 43, 37, .22);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  max-width: 42rem;
  margin-bottom: 26px;
}

.page-faq .faq-group__head .section-head__num {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-faq .faq-group__head .h2 {
  margin: 0;
  font-size: clamp(22px, 5.4vw, 32px);
  line-height: 1.28;
  color: var(--faq-text);
}

.page-faq .faq-group__lead {
  margin: 0;
  color: var(--faq-dim);
  font-size: 15px;
  line-height: 1.75;
  max-width: 38ch;
}

.page-faq .faq-group--paper .faq-group__head .h2 {
  color: var(--green);
}

/* ---------- 控制台两栏 ---------- */
.page-faq .faq-console {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 22px;
}

.page-faq .faq-index ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
}

.page-faq .faq-index li {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-faq .faq-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid var(--faq-line);
  border-radius: 4px;
  color: var(--faq-text);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-index a .mono {
  color: var(--gold);
  font-size: 12px;
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  background: var(--faq-hover);
  border-color: var(--gold);
}

.page-faq .faq-group--paper .faq-index a .mono {
  color: var(--wine);
}

/* ---------- 答案卡片 ---------- */
.page-faq .faq-panel {
  min-width: 0;
}

.page-faq .qa {
  position: relative;
  background: var(--faq-panel);
  border: 2px solid var(--faq-panel-border);
  border-radius: 4px;
  box-shadow: var(--faq-shadow);
  margin: 0 0 14px;
  scroll-margin-top: 90px;
  transition: border-color 220ms var(--ease), background 220ms var(--ease);
}

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

.page-faq .qa > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--faq-text);
}

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

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

.page-faq .qa__num {
  color: var(--gold);
  font-size: 12px;
  line-height: 1.9;
  flex: 0 0 auto;
}

.page-faq .faq-group--paper .qa__num {
  color: var(--wine);
}

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

.page-faq .qa__arrow {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 240ms var(--ease);
}

.page-faq .qa[open] .qa__arrow {
  transform: rotate(-135deg);
}

.page-faq .qa__body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--faq-line);
  margin-top: 2px;
  padding-top: 12px;
}

.page-faq .qa__body p {
  margin: 0 0 12px;
  color: var(--faq-dim);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .qa__body p:last-of-type {
  margin-bottom: 12px;
}

/* ---------- 通道示意图 ---------- */
.page-faq .faq-channel-media {
  margin: 0 0 24px;
  max-width: 240px;
}

/* ---------- 兜底区块 ---------- */
.page-faq .faq-fallback {
  position: relative;
  border: 2px solid var(--coral);
  border-radius: 6px;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, .5);
  padding: 28px 20px 26px;
  background: rgba(255, 107, 74, .06);
  text-align: center;
}

.page-faq .faq-fallback .section-head__num {
  color: var(--coral);
  font-size: 12px;
  letter-spacing: .1em;
  display: block;
  margin-bottom: 12px;
}

.page-faq .faq-fallback .h2 {
  margin: 0 0 14px;
  color: var(--paper);
  font-size: clamp(22px, 5.6vw, 32px);
}

.page-faq .faq-fallback__text {
  margin: 0 auto 24px;
  max-width: 44ch;
  color: rgba(244, 241, 232, .8);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .faq-fallback__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.page-faq .faq-fallback__note {
  margin: 22px 0 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(240, 217, 140, .6);
}

/* ---------- 平板以上 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding: 30px 0 64px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 42px;
    align-items: center;
    margin-top: 34px;
  }

  .page-faq .faq-group {
    padding: 60px 0 70px;
  }

  .page-faq .faq-fallback {
    padding: 40px 32px 36px;
  }

  .page-faq .qa > summary {
    padding: 17px 20px;
    font-size: 16px;
  }

  .page-faq .qa__body {
    padding: 14px 20px 18px;
  }
}

/* ---------- 桌面版：左索引右面板 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-console {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
    margin-top: 30px;
  }

  .page-faq .faq-index ol {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--faq-line);
  }

  .page-faq .faq-index li {
    flex: 1 1 auto;
  }

  .page-faq .faq-index a {
    display: flex;
    width: 100%;
    padding: 10px 10px 10px 14px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
    white-space: normal;
    font-size: 13.5px;
    line-height: 1.5;
  }

  .page-faq .faq-index a:hover,
  .page-faq .faq-index a:focus-visible {
    background: var(--faq-hover);
    border-left-color: var(--gold);
  }

  .page-faq .faq-channel-media {
    max-width: 280px;
    margin-left: auto;
    margin-right: auto;
  }

  .page-faq .qa__arrow {
    margin-left: 6px;
  }
}

/* ---------- 降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__arrow,
  .page-faq .qa,
  .page-faq .faq-index a {
    transition: none;
  }

  .page-faq .faq-hero h1 {
    transform: none;
  }
}