.page-faq {
  --faq-cut: 18px;
  --faq-rail-w: 300px;
  background: var(--mist);
  color: var(--ink);
  font-family: var(--font-sans);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3.2vw, 38px) 0 clamp(42px, 6.4vw, 86px);
  background:
    radial-gradient(112% 92% at 94% 2%, rgba(224, 166, 60, 0.2), transparent 58%),
    linear-gradient(158deg, var(--violet-deep) 0%, var(--violet) 34%, var(--lake-deep) 70%, var(--lake) 100%);
  color: var(--mist);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(245, 248, 251, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(245, 248, 251, 0.08) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(158deg, #000 6%, transparent 74%);
  mask-image: linear-gradient(158deg, #000 6%, transparent 74%);
}

.page-faq .faq-hero > .eb-container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .eb-breadcrumb {
  color: var(--mist-50);
  font-size: 13px;
}

.page-faq .faq-hero .eb-breadcrumb a {
  color: var(--mist-90);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 248, 251, 0.28);
}

.page-faq .faq-hero .eb-breadcrumb a:hover {
  color: var(--gold-light);
  border-bottom-color: var(--gold);
}

.page-faq .faq-hero .eb-kicker {
  color: var(--gold-light);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
  margin-top: clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero__lead h1 {
  margin: 0.34em 0 0.5em;
  font-size: clamp(29px, 4.4vw, 56px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 0.045em;
  color: var(--mist);
}

.page-faq .faq-hero__sub {
  max-width: 40ch;
  margin: 0;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.88;
  color: var(--mist-70);
}

.page-faq .faq-hero__lead .eb-actions {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-hero__alt {
  color: var(--mist);
  border: 1px solid var(--line-inv);
  background: transparent;
}

.page-faq .faq-hero__alt:hover {
  color: var(--gold-light);
  border-color: var(--gold);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border-radius: 0 0 var(--faq-cut) 0;
  overflow: hidden;
  box-shadow: 0 32px 70px rgba(6, 10, 26, 0.46);
  outline: 1px solid rgba(245, 248, 251, 0.16);
  outline-offset: -1px;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 6;
  object-fit: cover;
}

.page-faq .faq-hero__media figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 16px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist-70);
  background: linear-gradient(to top, rgba(21, 15, 46, 0.92), rgba(21, 15, 46, 0));
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  position: relative;
  padding: clamp(38px, 5.6vw, 82px) 0 clamp(44px, 6vw, 88px);
  background: var(--mist);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 40px);
}

/* 左侧索引 */
.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .faq-rail .eb-kicker {
  margin-bottom: 12px;
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-faq .faq-rail__label {
  display: none;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--slate);
}

.page-faq .faq-q {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--slate);
  font: inherit;
  font-size: 14px;
  line-height: 1.55;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-q:hover {
  color: var(--ink);
}

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

.page-faq .faq-q__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--slate);
  opacity: 0.8;
}

.page-faq .faq-q[aria-selected="true"] {
  color: var(--ink);
  font-weight: 700;
  border-bottom-color: var(--gold);
  background: rgba(224, 166, 60, 0.12);
}

.page-faq .faq-q[aria-selected="true"] .faq-q__no {
  color: var(--gold);
  opacity: 1;
}

/* 右侧答案 */
.page-faq .faq-answers {
  display: grid;
  gap: clamp(16px, 2.2vw, 26px);
  min-width: 0;
}

.page-faq .faq-a {
  position: relative;
  padding: clamp(20px, 2.4vw, 28px) clamp(18px, 2.4vw, 30px) clamp(20px, 2.4vw, 28px) clamp(22px, 2.6vw, 30px);
  background: #ffffff;
  border: 1px solid var(--line);
  border-left: 0;
  border-radius: 0 0 var(--faq-cut) 0;
  box-shadow: 0 1px 2px rgba(11, 22, 34, 0.04);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(224, 166, 60, 0.34);
  transition: background-color 0.22s ease;
}

.page-faq .faq-a:hover {
  border-color: var(--line-strong);
  box-shadow: 0 10px 26px rgba(11, 22, 34, 0.08);
}

.page-faq .faq-a.is-active::before {
  background: var(--gold);
}

.page-faq .faq-a__no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-faq .faq-a__q {
  margin: 0 0 12px;
  font-size: clamp(17px, 1.9vw, 22px);
  font-weight: 900;
  line-height: 1.48;
  letter-spacing: 0.03em;
  color: var(--ink);
}

.page-faq .faq-a__body {
  max-width: 46ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink);
}

.page-faq .faq-val {
  display: inline-block;
  padding: 1px 7px;
  margin: 0 1px;
  font-family: var(--font-mono);
  font-size: 0.92em;
  letter-spacing: 0.02em;
  color: var(--lake-deep);
  background: rgba(18, 92, 140, 0.09);
  box-shadow: inset 0 0 0 1px rgba(18, 92, 140, 0.16);
  border-radius: 4px;
  transition: background-color 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
}

.page-faq .faq-val:hover {
  color: var(--ink);
  background: rgba(224, 166, 60, 0.22);
  box-shadow: inset 0 0 0 1px rgba(224, 166, 60, 0.62);
}

.page-faq .faq-a__next {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .faq-arrow {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--gold);
}

.page-faq .faq-a__next a {
  color: var(--lake);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(18, 92, 140, 0.34);
  padding-bottom: 1px;
}

.page-faq .faq-a__next a:hover {
  color: var(--lake-deep);
  border-bottom-color: var(--gold);
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-cta {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 6.6vw, 96px) 0;
  background: linear-gradient(140deg, var(--violet-deep) 0%, var(--violet) 42%, var(--lake-deep) 100%);
  color: var(--mist);
}

.page-faq .faq-cta__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
  pointer-events: none;
}

.page-faq .faq-cta > .eb-container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-cta .eb-kicker {
  color: var(--gold-light);
}

.page-faq .faq-cta__inner {
  max-width: 800px;
}

.page-faq .faq-cta__inner h2 {
  margin: 0.44em 0 0.5em;
  font-size: clamp(24px, 3.2vw, 40px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .faq-cta__lead {
  max-width: 40ch;
  margin: 0 0 clamp(22px, 3vw, 32px);
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--mist-70);
}

.page-faq .faq-cta__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0 0 clamp(24px, 3.4vw, 36px);
  padding: 0;
  list-style: none;
}

.page-faq .faq-cta__list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist-70);
  background: rgba(245, 248, 251, 0.07);
  border-left: 2px solid rgba(224, 166, 60, 0.52);
  border-radius: 0 0 12px 0;
}

.page-faq .faq-cta__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .faq-cta__alt {
  color: var(--mist);
  border: 1px solid var(--line-inv);
  background: transparent;
}

.page-faq .faq-cta__alt:hover {
  color: var(--gold-light);
  border-color: var(--gold);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-cta__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 126px;
    max-height: calc(100vh - 152px);
    overflow-y: auto;
    padding-right: 14px;
    border-right: 1px solid var(--line);
    scrollbar-width: thin;
  }

  .page-faq .faq-rail__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__label {
    display: block;
    padding: 16px 12px 6px;
  }

  .page-faq .faq-q {
    display: flex;
    width: 100%;
    white-space: normal;
    padding: 9px 14px 9px 14px;
    border-bottom: 0;
    border-left: 2px solid transparent;
    font-size: 14px;
  }

  .page-faq .faq-q[aria-selected="true"] {
    border-bottom-color: transparent;
    border-left-color: var(--gold);
    background: linear-gradient(90deg, rgba(224, 166, 60, 0.16), rgba(224, 166, 60, 0) 94%);
  }

  .page-faq .faq-answers {
    padding-left: clamp(18px, 2.6vw, 40px);
    margin-top: 4px;
  }

  .page-faq .faq-a:not(.is-active) {
    opacity: 0.96;
  }
}

@media (min-width: 1200px) {
  .page-faq {
    --faq-rail-w: 326px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-a,
  .page-faq .faq-a::before,
  .page-faq .faq-val {
    transition: none;
  }
}