.page-faq {
  --faq-gap: clamp(48px, 6vw, 84px);
  --faq-card: rgba(27, 59, 111, 0.34);
  --faq-card-open: rgba(27, 59, 111, 0.62);
  --faq-body-ink: #C9CFD8;
  background: var(--ink);
  color: var(--paper);
}

/* ── 首屏 ── */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 42px) 0 clamp(44px, 6vw, 80px);
  background:
    radial-gradient(120% 90% at 88% 0%, var(--glow), transparent 62%),
    linear-gradient(165deg, var(--ink-deep) 0%, var(--ink) 52%, var(--ink-2) 100%);
  border-bottom: 1px solid var(--hair);
}

.page-faq .breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--stone-soft);
  letter-spacing: 0.04em;
}
.page-faq .breadcrumb a {
  color: var(--stone-soft);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--accent);
}
.page-faq .breadcrumb span[aria-current="page"] {
  color: var(--paper);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
  margin-top: clamp(24px, 3vw, 36px);
  align-items: start;
}

.page-faq .faq-eyebrow {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(28px, 5.4vw, 46px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--white);
  font-weight: 900;
}

.page-faq .faq-lead {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: var(--fs-16);
  line-height: 1.9;
  color: var(--silver);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 24px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--hair);
  font-size: var(--fs-12);
  color: var(--stone-soft);
  letter-spacing: 0.02em;
}
.page-faq .faq-hero__meta li {
  position: relative;
  padding-left: 12px;
}
.page-faq .faq-hero__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  background: var(--clay);
}

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

/* ── 主体骨架 ── */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: clamp(36px, 5vw, 60px) 0 clamp(64px, 8vw, 110px);
}

/* ── 左侧目录 ── */
.page-faq .faq-toc {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-size: var(--fs-12);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-toc__list {
  display: flex;
  flex-direction: column;
}

.page-faq .faq-toc__item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0 11px 12px;
  border-left: 2px solid var(--hair);
  color: var(--stone-soft);
  text-decoration: none;
  font-size: var(--fs-14);
  line-height: 1.5;
  transition: color var(--speed) ease, border-color var(--speed) ease, background-color var(--speed) ease;
}
.page-faq .faq-toc__item:hover,
.page-faq .faq-toc__item:focus-visible {
  color: var(--white);
  border-left-color: var(--accent);
  background: rgba(255, 106, 43, 0.07);
  outline: none;
}
.page-faq .faq-toc__num {
  font-size: var(--fs-12);
  color: var(--clay);
}
.page-faq .faq-toc__name {
  font-weight: 700;
}
.page-faq .faq-toc__count {
  font-size: var(--fs-12);
  color: var(--stone);
}

/* ── 分组 ── */
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
  padding-top: 18px;
  margin-bottom: clamp(40px, 5vw, 64px);
  border-top: 1px solid var(--hair-strong);
}
.page-faq .faq-group--last {
  margin-bottom: 0;
}

.page-faq .faq-group__head h2 {
  margin: 12px 0 0;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--white);
  font-weight: 900;
}

.page-faq .faq-group__desc {
  margin: 10px 0 22px;
  max-width: 60ch;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--stone-soft);
}

/* ── 折叠问答卡 ── */
.page-faq .qa {
  margin-bottom: 12px;
  background: var(--faq-card);
  border: 1px solid var(--hair);
  border-left: 3px solid var(--clay);
  transition: background-color var(--speed) ease, border-color var(--speed) ease;
}
.page-faq .qa:last-child {
  margin-bottom: 0;
}
.page-faq .qa[open] {
  background: var(--faq-card-open);
  border-left-color: var(--accent);
}

.page-faq .qa > summary {
  position: relative;
  display: block;
  padding: 15px 46px 15px 17px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  transition: color var(--speed) ease;
}
.page-faq .qa > summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa > summary::marker {
  content: "";
}
.page-faq .qa > summary:hover,
.page-faq .qa > summary:focus-visible {
  color: var(--white);
  outline: none;
}
.page-faq .qa > summary:focus-visible {
  box-shadow: inset 0 0 0 2px var(--accent);
}

.page-faq .qa > summary h3 {
  margin: 0;
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.62;
  color: inherit;
}

.page-faq .qa > summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 21px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform var(--speed) ease;
}
.page-faq .qa[open] > summary::after {
  transform: rotate(225deg);
}

.page-faq .qa__body {
  padding: 0 17px 18px;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--faq-body-ink);
}
.page-faq .qa__body p {
  margin: 0 0 10px;
}
.page-faq .qa__body p:last-child {
  margin-bottom: 0;
}
.page-faq .qa__body a {
  color: var(--accent-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 138, 85, 0.5);
}
.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-faq .qa-step {
  border-left: 3px solid var(--accent);
  padding: 3px 0 3px 12px;
  margin: 12px 0;
  color: var(--white);
  font-weight: 700;
}

/* ── 末章：两条出口 ── */
.page-faq .faq-exit {
  background: var(--paper);
  color: var(--paper-ink);
  border: 1px solid var(--silver);
  border-left: 3px solid var(--accent);
  padding: clamp(18px, 3vw, 32px);
}

.page-faq .faq-exit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: center;
}

.page-faq .faq-paths {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-path {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--silver);
  border-left: 3px solid var(--clay);
  padding: 16px 16px 18px;
}
.page-faq .faq-path h3 {
  margin: 0 0 8px;
  font-size: var(--fs-18);
  line-height: 1.4;
  color: var(--paper-ink);
  font-weight: 900;
}
.page-faq .faq-path p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: #3B465C;
}
.page-faq .faq-path__link {
  display: inline-block;
  margin-top: 12px;
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--clay);
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 1px;
}
.page-faq .faq-path__link:hover,
.page-faq .faq-path__link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

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

.page-faq .faq-exit__note {
  margin: 18px 0 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--stone-soft);
}
.page-faq .faq-exit__note a {
  color: var(--accent-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 138, 85, 0.5);
}
.page-faq .faq-exit__note a:hover,
.page-faq .faq-exit__note a:focus-visible {
  color: var(--white);
}

/* ── 窄屏溢出保护 ── */
.page-faq img {
  max-width: 100%;
  height: auto;
}
.page-faq .faq-exit__media img {
  object-fit: cover;
}

/* ── 断点 ── */
@media (min-width: 640px) {
  .page-faq .faq-paths {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1.12fr 0.88fr;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-layout {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 104px;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-faq .faq-exit__grid {
    grid-template-columns: 1.25fr 0.75fr;
    gap: clamp(20px, 3vw, 36px);
  }

  .page-faq .qa > summary h3 {
    font-size: var(--fs-18);
  }

  .page-faq .qa > summary {
    padding: 18px 52px 18px 20px;
  }
  .page-faq .qa > summary::after {
    top: 24px;
    right: 20px;
  }
  .page-faq .qa__body {
    padding: 0 20px 22px;
    font-size: var(--fs-16);
    max-width: 76ch;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: 288px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa > summary,
  .page-faq .qa > summary::after,
  .page-faq .faq-toc__item {
    transition: none;
  }
}