.page-faq {
  --faq-sticky: 118px;
  display: block;
  background: var(--ice);
  color: var(--ink-deep);
}

.page-faq .breadcrumb {
  padding-top: clamp(12px, 2.5vw, 20px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background: linear-gradient(180deg, #ffffff 0%, var(--ice) 100%);
  border-bottom: 2px solid var(--ink-deep);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
  padding-top: clamp(18px, 3.5vw, 36px);
  padding-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(36px, 8vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-slate);
}

.page-faq .faq-hero__aside {
  border: 2px solid var(--char);
  box-shadow: var(--shadow-hard);
  background: var(--ink-deep);
  color: var(--ice);
  padding: 18px 20px 20px;
}

.page-faq .faq-hero__aside-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-faq .faq-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-facts__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-top: 12px;
  border-top: 1px solid rgba(245, 248, 250, 0.18);
}

.page-faq .faq-facts__item:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-facts__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-facts__text {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ice-line);
}

.page-faq .faq-hero__media {
  margin: 0;
  overflow: hidden;
  background: var(--ink-deep);
  border-top: 2px solid var(--ink-deep);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(150px, 26vw, 280px);
  object-fit: cover;
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(26px, 4.5vw, 52px);
  padding-bottom: clamp(38px, 6vw, 72px);
}

.page-faq .faq-toc {
  border: 2px solid var(--ink-deep);
  background: #ffffff;
  padding: 16px 16px 14px;
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  border-left: 2px solid var(--ice-line);
  font-size: 14px;
  color: var(--ink-slate);
  text-decoration: none;
  transition: background var(--speed), border-color var(--speed), color var(--speed);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  background: var(--ice);
  border-left-color: var(--orange);
  color: var(--ink-deep);
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-faq .faq-toc__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--ice-line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(30px, 5vw, 54px);
  scroll-margin-top: var(--faq-sticky);
}

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

.page-faq .faq-group__head {
  border-top: 2px solid var(--ink-deep);
  padding-top: 12px;
  margin-bottom: 16px;
}

.page-faq .faq-group__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--fog);
}

.page-faq .faq-group__title {
  margin: 8px 0 6px;
  padding-left: 12px;
  border-left: 3px solid var(--orange);
  font-family: var(--font-body);
  font-size: clamp(19px, 2.8vw, 25px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink-deep);
}

.page-faq .faq-group__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .faq-group:target .faq-group__head {
  border-top-color: var(--orange);
}

.page-faq .faq-group:target .faq-group__title {
  border-left-color: var(--ink-deep);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  margin-bottom: 10px;
  border: 2px solid var(--ink-deep);
  background: #ffffff;
  transition: box-shadow var(--speed), transform var(--speed);
}

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

.page-faq .qa[open] {
  box-shadow: 4px 4px 0 var(--char);
}

.page-faq .qa:hover {
  transform: translate(-1px, -1px);
}

.page-faq .qa__q {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 13px 15px;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink-deep);
}

.page-faq .qa__q::-webkit-details-marker {
  display: none;
}

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--slate);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  color: var(--orange);
}

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

.page-faq .qa__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-faq .qa__a {
  padding: 0 15px 15px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-slate);
}

.page-faq .qa__a p {
  margin: 0 0 8px;
}

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

.page-faq .qa__a strong {
  font-weight: 600;
  color: var(--ink-deep);
}

.page-faq .qa__a a {
  color: var(--ink-deep);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  background: var(--ice-line);
}

.page-faq .faq-mail {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  word-break: break-all;
}

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

/* ---------- 表单章节右图 ---------- */
.page-faq .faq-group__split {
  display: grid;
  gap: 16px;
}

.page-faq .faq-figure {
  margin: 0;
  border: 2px solid var(--ink-deep);
  background: var(--ice);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure__cap {
  padding: 9px 11px;
  border-top: 2px solid var(--ink-deep);
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 底部横条 ---------- */
.page-faq .faq-cta {
  background: var(--ink-deep);
  border-top: 2px solid var(--char);
  border-bottom: 2px solid var(--char);
  color: var(--ice);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 20px;
  align-items: center;
  padding-top: clamp(28px, 5vw, 54px);
  padding-bottom: clamp(28px, 5vw, 54px);
}

.page-faq .faq-cta .eyebrow {
  color: var(--cyan);
}

.page-faq .faq-cta__title {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-faq .faq-cta__para {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ice-line);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(264px, 0.85fr);
    align-items: end;
  }

  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 1fr) 236px;
    align-items: start;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 252px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: var(--faq-sticky);
  }
}

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

  .page-faq .qa:hover {
    transform: none;
  }
}
<<<END>>>