.page-faq {
  --faq-index-w: 190px;
  --faq-text: rgba(242, 239, 230, .86);
  --faq-quiet: rgba(147, 168, 160, .9);
  position: relative;
}

.page-faq .faq-wrap {
  padding-top: clamp(20px, 3.6vw, 44px);
  padding-bottom: clamp(40px, 6vw, 88px);
}

/* ---------- 首屏框景 ---------- */

.page-faq .faq-hero {
  margin-top: clamp(14px, 2.4vw, 26px);
}

.page-faq .faq-frame {
  position: relative;
  padding: clamp(24px, 4vw, 54px) clamp(20px, 4vw, 60px) clamp(28px, 4.4vw, 58px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(74, 22, 24, .55) 0%, transparent 58%),
    linear-gradient(170deg, var(--felt-panel) 0%, var(--felt-base) 62%, var(--felt-deep) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-frame::before,
.page-faq .faq-frame::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1px solid var(--gold);
  opacity: .75;
  pointer-events: none;
}

.page-faq .faq-frame::before {
  top: 12px;
  left: 12px;
  border-right: 0;
  border-bottom: 0;
}

.page-faq .faq-frame::after {
  bottom: 12px;
  right: 12px;
  border-left: 0;
  border-top: 0;
}

.page-faq .faq-frame-inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.page-faq .faq-title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(27px, 4.6vw, 50px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--bone);
  text-wrap: balance;
}

.page-faq .faq-lede {
  margin-top: clamp(14px, 2vw, 22px);
  max-width: 62ch;
  color: var(--faq-text);
}

.page-faq .faq-hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin-top: clamp(22px, 3vw, 36px);
  background: var(--line-soft);
  border: 1px solid var(--line);
}

.page-faq .faq-fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 15px 17px;
  background: rgba(7, 20, 17, .72);
}

.page-faq .faq-fact .stat-value {
  font-size: clamp(26px, 3.4vw, 34px);
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.page-faq .faq-fact .stat-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

.page-faq .faq-glass {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: clamp(20px, 3vw, 30px);
  padding: 10px 16px;
  border: 1px solid var(--line);
  background: var(--glass);
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-glass-sep {
  width: 1px;
  height: 12px;
  background: var(--line);
}

/* ---------- 入门三步 ---------- */

.page-faq .faq-start {
  margin-top: clamp(46px, 7vw, 92px);
}

.page-faq .start-list {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .start-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(20px, 2.8vw, 30px) 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .start-num {
  font-size: clamp(26px, 3.2vw, 36px);
  line-height: 1;
  color: var(--cloth-red-hi);
  letter-spacing: 0.02em;
}

.page-faq .start-body h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-faq .start-body p {
  margin: 10px 0 0;
  max-width: 64ch;
  color: var(--faq-text);
}

@media (min-width: 760px) {
  .page-faq .start-item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

/* ---------- 问答主体 ---------- */

.page-faq .faq-body-head {
  margin-top: clamp(48px, 7vw, 96px);
}

.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  margin-top: clamp(22px, 3vw, 36px);
}

.page-faq .faq-index {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-index-list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 10px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index-list > li {
  flex: none;
}

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  background: var(--glass);
  color: var(--mist);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color .16s ease, border-color .16s ease, background-color .16s ease;
}

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

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  flex: none;
}

.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-chips {
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

/* ---------- 折叠条目 ---------- */

.page-faq .faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--bar-h) + 28px);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: clamp(16px, 2.2vw, 22px) 0;
  background: none;
  border: 0;
  color: var(--bone);
  font-family: var(--font-head);
  font-size: clamp(15.5px, 1.7vw, 18.5px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-align: left;
  cursor: pointer;
  transition: color .18s ease;
}

.page-faq .faq-q:hover,
.page-faq .faq-q:focus-visible {
  color: var(--gold-hi);
}

.page-faq .faq-q-num {
  flex: none;
  padding-top: 3px;
  font-size: 12.5px;
  color: var(--gold);
  letter-spacing: 0.06em;
}

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

.page-faq .faq-q-mark {
  flex: none;
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 6px;
  color: var(--mist);
}

.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: currentColor;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q-mark::before {
  width: 14px;
  height: 1.5px;
}

.page-faq .faq-q-mark::after {
  width: 1.5px;
  height: 14px;
  transition: transform .18s ease;
}

.page-faq .faq-q[aria-expanded="true"] .faq-q-mark {
  color: var(--gold);
}

.page-faq .faq-q[aria-expanded="true"] .faq-q-mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

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

.page-faq .faq-a {
  padding: 0 0 clamp(20px, 2.8vw, 30px) 0;
  border-left: 3px solid transparent;
  transition: border-color .2s ease, padding-left .2s ease;
}

.page-faq .faq-item:has(.faq-q[aria-expanded="true"]) .faq-a {
  border-left-color: var(--cloth-red-hi);
  padding-left: clamp(14px, 2vw, 20px);
}

.page-faq .faq-a p {
  margin: 0 0 12px;
  max-width: 60ch;
  color: var(--faq-text);
}

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

.page-faq .faq-a ul {
  margin: 0 0 12px;
  padding-left: 18px;
  display: grid;
  gap: 7px;
  max-width: 60ch;
  color: var(--faq-quiet);
}

.page-faq .faq-a li {
  line-height: 1.7;
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 14px !important;
  padding: 10px 14px;
  border-left: 2px solid var(--gold);
  background: var(--glass);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--gold-hi);
}

.page-faq .faq-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 206, 120, .42);
  transition: color .16s ease, border-color .16s ease;
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--bone);
  border-bottom-color: var(--bone);
}

/* ---------- 答案内图文分栏 ---------- */

.page-faq .faq-answer-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

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

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--felt-panel);
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

@media (min-width: 760px) {
  .page-faq .faq-answer-split {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 28px;
  }

  .page-faq .faq-answer-split--rail {
    grid-template-columns: minmax(0, 1fr) 210px;
  }
}

/* ---------- 结尾 ---------- */

.page-faq .faq-outro {
  margin-top: clamp(52px, 8vw, 104px);
  padding: clamp(30px, 4.6vw, 56px) clamp(22px, 3.6vw, 52px);
  background:
    linear-gradient(128deg, var(--cloth-red) 0%, #391214 78%, #2B0D0F 100%);
  border-top: 1px solid var(--cloth-red-hi);
  border-bottom: 1px solid var(--cloth-red-hi);
}

.page-faq .faq-outro-inner {
  max-width: 660px;
}

.page-faq .faq-outro .eyebrow {
  color: var(--gold-hi);
}

.page-faq .faq-outro h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-faq .faq-outro p {
  margin: 14px 0 0;
  color: rgba(242, 239, 230, .9);
}

.page-faq .faq-outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 桌面端索引常驻 ---------- */

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 22px);
    max-height: calc(100vh - var(--bar-h) - 52px);
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    border-top-color: var(--line);
  }

  .page-faq .faq-index-list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index-list > li {
    display: block;
  }

  .page-faq .faq-index-link {
    display: flex;
    align-items: baseline;
    white-space: normal;
    padding: 7px 10px 7px 12px;
    border: 0;
    border-left: 2px solid transparent;
    background: none;
    font-size: 13px;
    line-height: 1.45;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    border-left-color: var(--gold);
    background: linear-gradient(90deg, rgba(201, 162, 39, .12), transparent 82%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-link,
  .page-faq .faq-q,
  .page-faq .faq-q-mark::after,
  .page-faq .faq-a,
  .page-faq .faq-link {
    transition: none;
  }
}
</main>