.page-faq {
  --faq-line: rgba(11, 23, 48, 0.14);
  --faq-line-dark: rgba(244, 241, 234, 0.16);
  --faq-gap: clamp(20px, 4vw, 40px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(18px, 4vw, 32px) 0 clamp(40px, 7vw, 80px);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(43, 64, 102, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 64, 102, 0.5) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.55;
  pointer-events: none;
}
.page-faq .faq-hero > .container {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0 0 clamp(22px, 5vw, 46px);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--slate);
}
.page-faq .breadcrumb__list li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--grid);
}
.page-faq .breadcrumb__list a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-faq .breadcrumb__list a:hover,
.page-faq .breadcrumb__list a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}
.page-faq .breadcrumb__list [aria-current="page"] {
  color: var(--paper);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
}
.page-faq .faq-hero .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}
.page-faq .faq-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.01em;
}
.page-faq .faq-hero__text {
  margin: 0 0 22px;
  max-width: 34em;
  font-size: clamp(15px, 2.1vw, 18px);
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.84);
}
.page-faq .faq-hero__meta {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--faq-line-dark);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--celadon);
}

.page-faq .faq-index {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-line-dark);
}
.page-faq .faq-index li {
  border-bottom: 1px solid var(--faq-line-dark);
}
.page-faq .faq-index a {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 6px 16px 0;
  color: var(--paper);
  text-decoration: none;
  transition: background var(--dur) ease, padding-left var(--dur) ease;
}
.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  background: var(--panel);
  padding-left: 12px;
  outline: none;
}
.page-faq .faq-index__num {
  font-size: 15px;
  color: var(--amber);
}
.page-faq .faq-index__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
}
.page-faq .faq-index__count {
  font-size: 11px;
  color: var(--slate);
  white-space: nowrap;
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  background: var(--paper);
  padding: clamp(32px, 6vw, 76px) 0 clamp(40px, 7vw, 88px);
}
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-toc {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
}
.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}
.page-faq .faq-toc__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}
.page-faq .faq-toc__link {
  display: block;
  padding: 9px 0 9px 12px;
  border-left: 2px solid var(--faq-line);
  color: #3A4A66;
  font-size: 14px;
  text-decoration: none;
  transition: color var(--dur) ease, border-color var(--dur) ease;
}
.page-faq .faq-toc__link .mono {
  margin-right: 8px;
  font-size: 11px;
  color: var(--amber-deep);
}
.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--ink);
  border-left-color: var(--amber);
  outline: none;
}
.page-faq .faq-toc__link[data-active="true"] {
  color: var(--ink);
  font-weight: 700;
  border-left-color: var(--amber);
}
.page-faq .faq-toc__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 12.5px;
  line-height: 1.7;
  color: #5B6B85;
}
.page-faq .faq-toc__note a {
  color: var(--amber-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- 问题组 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}
.page-faq .faq-group {
  padding: clamp(24px, 4vw, 40px) 0 clamp(20px, 3vw, 32px);
  border-top: 2px solid var(--ink);
}
.page-faq .faq-group + .faq-group {
  margin-top: clamp(20px, 4vw, 44px);
}
.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  margin-bottom: 18px;
}
.page-faq .faq-group__head .idx {
  display: block;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(44px, 12vw, 88px);
  line-height: 0.9;
  color: var(--amber-deep);
  opacity: 0.9;
}
.page-faq .faq-group__kicker {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}
.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(21px, 3.6vw, 30px);
  line-height: 1.32;
  color: var(--ink);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px 30px 16px 0;
  position: relative;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--ink);
}
.page-faq .qa summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--amber-deep);
}
.page-faq .qa[open] summary::after {
  content: "−";
}
.page-faq .qa summary:hover {
  color: var(--amber-deep);
}
.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}
.page-faq .qa__num {
  flex: none;
  margin-top: 2px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--celadon-deep);
}
.page-faq .qa__body {
  padding: 0 0 20px 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: #33435E;
}
.page-faq .qa__body p {
  margin: 0 0 12px;
}
.page-faq .qa__body p:last-child {
  margin-bottom: 0;
}
.page-faq .qa__body a {
  color: var(--amber-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .qa__body a:hover {
  color: var(--ink);
}
.page-faq .qa__body .mono {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  background: rgba(111, 199, 174, 0.18);
  padding: 1px 5px;
}

.page-faq .faq-steps {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  counter-reset: none;
}
.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--faq-line);
}
.page-faq .faq-steps li:first-child {
  border-top: 1px solid var(--ink);
}
.page-faq .faq-steps__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--ink);
  color: var(--amber);
  font-size: 12px;
  line-height: 1;
}

.page-faq .faq-copy {
  display: inline-block;
  margin-top: 4px;
  padding: 9px 16px;
  background: transparent;
  border: 1px solid var(--amber-deep);
  border-radius: 0;
  color: var(--amber-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background var(--dur) ease, color var(--dur) ease;
}
.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
  outline: none;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
  border: 1px solid var(--faq-line);
  background: #EAE6DC;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1000 / 700;
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: #5B6B85;
}

/* ---------- 结尾入口 ---------- */
.page-faq .faq-next {
  background: var(--ink-2);
  color: var(--paper);
  padding: clamp(36px, 6vw, 72px) 0 clamp(32px, 5vw, 56px);
}
.page-faq .faq-next .eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--celadon);
}
.page-faq .faq-next h2 {
  margin: 0 0 clamp(22px, 4vw, 36px);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 4vw, 34px);
  line-height: 1.28;
}
.page-faq .faq-next__grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--faq-line-dark);
  border: 1px solid var(--faq-line-dark);
}
.page-faq .faq-next__grid a {
  display: block;
  height: 100%;
  padding: 20px 18px 22px;
  background: var(--panel);
  color: var(--paper);
  text-decoration: none;
  transition: background var(--dur) ease, transform var(--dur) ease;
}
.page-faq .faq-next__grid a:hover,
.page-faq .faq-next__grid a:focus-visible {
  background: #1D3560;
  transform: translateY(-2px);
  outline: none;
}
.page-faq .faq-next__num {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  color: var(--amber);
}
.page-faq .faq-next__name {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
}
.page-faq .faq-next__desc {
  display: block;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate);
}
.page-faq .faq-next__back {
  margin: 24px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
}
.page-faq .faq-next__back a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--celadon-deep);
  padding-bottom: 2px;
}
.page-faq .faq-next__back a:hover {
  color: var(--celadon);
  border-bottom-color: var(--celadon);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
  .page-faq .faq-group__head {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }
  .page-faq .faq-group__head .idx {
    font-size: clamp(56px, 7vw, 84px);
  }
  .page-faq .qa summary {
    font-size: 16.5px;
    padding-right: 36px;
  }
  .page-faq .qa__body {
    padding-left: 34px;
  }
  .page-faq .faq-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
  }
  .page-faq .faq-toc {
    position: sticky;
    top: 96px;
  }
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(40px, 6vw, 80px);
  }
  .page-faq .faq-index a {
    padding: 18px 8px 18px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index a,
  .page-faq .faq-toc__link,
  .page-faq .faq-copy,
  .page-faq .faq-next__grid a {
    transition: none;
  }
  .page-faq .faq-next__grid a:hover,
  .page-faq .faq-next__grid a:focus-visible {
    transform: none;
  }
}
<<<END>>>