.page-faq {
  --faq-gap: clamp(16px, 3vw, 32px);
  --faq-line: rgba(46, 82, 122, 0.65);
  color: var(--ice);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  padding-block: clamp(14px, 2.4vw, 22px) 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(20px, 3.4vw, 40px);
  padding-block: clamp(18px, 3vw, 32px) clamp(26px, 4.5vw, 48px);
  border-bottom: var(--frame) solid var(--steel);
}

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

.page-faq .faq-eyebrow-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: clamp(12px, 2vw, 18px);
}

.page-faq .faq-hero h1 {
  margin: 0 0 0.4em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 7vw, 78px);
  line-height: 1.04;
  letter-spacing: 0.01em;
  color: var(--ice);
}

.page-faq .faq-lede {
  max-width: 54ch;
  margin: 0;
  color: var(--mist);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.74;
}

.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-quick a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--steel);
  background: rgba(18, 52, 90, 0.55);
  color: var(--ice);
  font-size: 14px;
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-faq .faq-quick a span {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--teal);
}

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  border-color: var(--cyan);
  background: rgba(36, 224, 255, 0.12);
  color: var(--cyan);
}

.page-faq .faq-quick a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-hero__visual {
  margin: 0;
  min-width: 0;
  border: var(--frame) solid var(--steel);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

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

.page-faq .faq-hero__visual figcaption {
  padding: 10px 14px;
  border-top: var(--frame) solid var(--steel);
  background: var(--raised);
  color: var(--mist);
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(22px, 3.4vw, 38px);
  padding-block: clamp(26px, 4vw, 50px);
}

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

/* ---------- 问题索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
  border: var(--frame) solid var(--steel);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-index__title {
  margin: 0;
  padding: 12px 16px;
  border-bottom: var(--frame) solid var(--steel);
  background: var(--raised);
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.page-faq .faq-index ol {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 8px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
}

.page-faq .faq-index a {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 6px;
  align-items: baseline;
  padding: 9px 12px;
  border-left: 3px solid transparent;
  color: var(--mist);
  font-size: 13.5px;
  line-height: 1.45;
  text-decoration: none;
  white-space: nowrap;
  transition: color 150ms ease, background 150ms ease, border-color 150ms ease;
}

.page-faq .faq-index__no {
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.08em;
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  border-left-color: var(--orange);
  background: rgba(36, 224, 255, 0.1);
  color: var(--cyan);
}

.page-faq .faq-index a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  min-width: 0;
  padding-top: clamp(6px, 1.5vw, 14px);
  border-top: var(--frame) solid var(--steel);
  scroll-margin-top: 92px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(28px, 4.5vw, 48px);
}

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

.page-faq .faq-group:target .faq-group__num {
  color: var(--orange);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2vw, 20px);
  align-items: start;
  margin-bottom: clamp(14px, 2.4vw, 22px);
}

.page-faq .faq-group__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1;
  color: var(--cyan);
  transition: color 180ms ease;
}

.page-faq .faq-group__head h2 {
  margin: 0 0 0.4em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--ice);
}

.page-faq .faq-group__head p {
  max-width: 62ch;
  margin: 0;
  color: var(--mist);
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.72;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-stack {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  border: var(--frame) solid var(--steel);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.page-faq .faq-item[open] {
  border-color: var(--cyan);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px clamp(14px, 2vw, 20px);
  list-style: none;
  cursor: pointer;
  transition: background 160ms ease;
}

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

.page-faq .faq-item summary:hover {
  background: rgba(36, 224, 255, 0.07);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-item__no {
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--teal);
}

.page-faq .faq-item__q {
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 500;
  line-height: 1.5;
  color: var(--ice);
}

.page-faq .faq-item summary::after {
  content: "+";
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-item[open] summary::after {
  content: "-";
}

.page-faq .faq-item__body {
  padding: 0 clamp(14px, 2vw, 20px) clamp(16px, 2.2vw, 22px);
  border-top: 1px dashed var(--faq-line);
}

.page-faq .faq-item__body p {
  margin: 14px 0 0;
  color: var(--mist);
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.76;
}

.page-faq .faq-item__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 224, 255, 0.45);
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-item__body a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--orange);
}

.page-faq .faq-item__body a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 步骤卡 ---------- */
.page-faq .faq-steps {
  counter-reset: faqstep;
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-top: 10px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--cyan);
}

.page-faq .faq-steps li span {
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.66;
  color: var(--mist);
}

/* ---------- 平板三种布局 ---------- */
.page-faq .faq-layouts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
}

.page-faq .faq-layout {
  border: var(--frame) solid var(--steel);
  background: linear-gradient(135deg, var(--raised), var(--panel));
  padding: 14px 16px;
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-layout h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.03em;
  color: var(--cyan);
}

.page-faq .faq-layout p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--mist);
}

.page-faq .faq-tablet-figure {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  border: var(--frame) solid var(--steel);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

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

.page-faq .faq-tablet-figure figcaption {
  padding: 10px 14px;
  border-top: var(--frame) solid var(--steel);
  background: var(--raised);
  color: var(--mist);
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- 指标条 ---------- */
.page-faq .faq-metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
}

.page-faq .faq-metric {
  border: var(--frame) solid var(--steel);
  border-left: 4px solid var(--orange);
  background: linear-gradient(120deg, var(--raised), var(--panel));
  padding: 14px 16px;
}

.page-faq .faq-metric__v {
  display: block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(28px, 3.8vw, 40px);
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-metric__l {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--mist);
}

/* ---------- 主题标签 ---------- */
.page-faq .faq-themes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-themes li {
  padding: 6px 12px;
  border: 1px solid var(--steel);
  background: rgba(18, 52, 90, 0.6);
  color: var(--ice);
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.08em;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-check {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-check li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 10px;
  font-size: clamp(14px, 1.5vw, 15.5px);
  line-height: 1.62;
  color: var(--mist);
}

.page-faq .faq-check li::before {
  content: "\25B8";
  color: var(--orange);
  font-size: 12px;
  line-height: 1.9;
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(16px, 2.4vw, 22px);
}

.page-faq .faq-contact__card {
  min-width: 0;
  border: var(--frame) solid var(--steel);
  background: var(--panel);
  padding: 16px;
}

.page-faq .faq-contact__card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .faq-contact__card p {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--mist);
}

.page-faq .faq-contact__card a {
  display: inline-block;
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 15px;
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid rgba(36, 224, 255, 0.45);
}

.page-faq .faq-contact__card a:hover,
.page-faq .faq-contact__card a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--orange);
}

.page-faq .faq-contact__card a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 24px);
}

/* ---------- 返回顶部 ---------- */
.page-faq .faq-top {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: var(--frame) solid var(--cyan);
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-decoration: none;
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-top:hover,
.page-faq .faq-top:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
}

.page-faq .faq-top:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-layouts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }

  .page-faq .faq-layouts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 3.5vw, 48px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-index ol {
    flex-direction: column;
    overflow: visible;
  }

  .page-faq .faq-index a {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item summary,
  .page-faq .faq-quick a,
  .page-faq .faq-index a {
    transition: none;
  }
}
<<<END>>>