.page-faq {
  --faq-shadow: 0 18px 44px rgba(0, 0, 0, .38);
  --faq-focus: 0 0 0 3px rgba(57, 242, 208, .38);
  background: var(--bg);
  color: var(--text);
  padding-bottom: clamp(48px, 7vw, 110px);
  overflow-x: clip;
}

.page-faq .breadcrumbs {
  padding-top: clamp(14px, 2.4vw, 22px);
}

.page-faq .breadcrumbs__current {
  color: var(--text-muted);
  font-size: var(--step-12);
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(18px, 3.4vw, 34px) 0 clamp(30px, 5vw, 58px);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(47, 107, 87, .55), transparent 62%),
    linear-gradient(180deg, var(--bg-alt), var(--bg));
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  align-items: center;
}

.page-faq .faq-hero__text .eyebrow {
  color: var(--cyan);
  margin-bottom: 14px;
}

.page-faq .faq-hero__text h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 5.6vw, 56px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0 0 18px;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--text-muted);
  margin: 0 0 26px;
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 0;
  padding: 18px 0 0;
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-hero__stat-num {
  flex: 0 0 auto;
  min-width: 2ch;
  font-size: clamp(26px, 3.6vw, 38px);
  line-height: 1;
  color: var(--cyan);
  font-weight: 600;
}

.page-faq .faq-hero__stat-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-muted);
  letter-spacing: .02em;
}

.page-faq .faq-hero__media {
  margin: 0;
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(11, 31, 26, .18) 0 1px, transparent 1px 4px);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-hero__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 1;
  padding: 8px 14px;
  background: rgba(7, 17, 14, .78);
  color: var(--data-blue);
  font-size: var(--step-12);
  letter-spacing: .08em;
}

/* ---------- 场景标签带 ---------- */
.page-faq .faq-tabs {
  background: rgba(18, 51, 43, .68);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-tabs__track {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 13px var(--gutter);
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--moss) transparent;
}

.page-faq .faq-tabs__item {
  flex: 0 0 auto;
  padding: 8px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  color: var(--text);
  font-size: var(--step-14);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-tabs__item:hover,
.page-faq .faq-tabs__item:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(57, 242, 208, .08);
  outline: none;
}

.page-faq .faq-tabs__item:focus-visible {
  box-shadow: var(--faq-focus);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  padding-top: clamp(28px, 4.5vw, 54px);
}

.page-faq .faq-toc {
  border-left: 2px solid var(--moss);
  padding: 4px 0 4px 16px;
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: .18em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  padding: 8px 6px 8px 0;
  color: var(--text-muted);
  font-size: var(--step-14);
  text-decoration: none;
  border-bottom: 1px dotted var(--line-soft);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--cyan);
  outline: none;
}

.page-faq .faq-toc__link:focus-visible {
  box-shadow: var(--faq-focus);
  border-radius: 4px;
}

.page-faq .faq-toc__no {
  color: var(--moss);
  font-size: var(--step-12);
}

.page-faq .faq-toc__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--rock);
  letter-spacing: .06em;
}

.page-faq .faq-toc__note {
  margin: 0;
  font-size: var(--step-12);
  line-height: 1.7;
  color: var(--data-blue);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-sections {
  display: grid;
  gap: clamp(34px, 5vw, 62px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: 6px;
}

.page-faq .faq-group__no {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--ink-800);
  border: 1px solid var(--line-strong);
  color: var(--cyan);
  font-size: var(--step-14);
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.2;
  font-weight: 700;
  color: var(--paper);
}

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

/* 折叠问答 */
.page-faq .qa {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 34px 16px 2px;
  position: relative;
  cursor: pointer;
  list-style: none;
  font-size: var(--step-16);
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.4;
  color: var(--moss);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--cyan);
  outline: none;
}

.page-faq .qa__q:focus-visible {
  box-shadow: var(--faq-focus);
  border-radius: 6px;
}

.page-faq .qa__no {
  flex: 0 0 auto;
  font-size: var(--step-12);
  color: var(--rock);
  letter-spacing: .04em;
}

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

.page-faq .qa[open] .qa__q {
  color: var(--cyan);
}

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

.page-faq .qa__a {
  padding: 0 4px 20px 30px;
  color: var(--text-muted);
  font-size: var(--step-14);
  line-height: 1.85;
}

.page-faq .qa__a p {
  margin: 0 0 12px;
}

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

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

.page-faq .qa__steps {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  counter-reset: qa-step;
  display: grid;
  gap: 8px;
}

.page-faq .qa__steps li {
  counter-increment: qa-step;
  position: relative;
  padding-left: 30px;
  line-height: 1.75;
}

.page-faq .qa__steps li::before {
  content: counter(qa-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  padding: 1px 5px;
  line-height: 1.4;
}

.page-faq .qa__list {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.page-faq .qa__list li {
  position: relative;
  padding-left: 16px;
  line-height: 1.75;
}

.page-faq .qa__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--moss);
}

.page-faq .qa__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 242, 208, .45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .qa__link:hover,
.page-faq .qa__link:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
  outline: none;
}

/* ---------- 适配章节配图 ---------- */
.page-faq .faq-media {
  margin: 16px 0 6px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow: hidden;
  position: relative;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-media__caption {
  padding: 10px 14px;
  font-size: var(--step-12);
  letter-spacing: .06em;
  color: var(--data-blue);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 联系卡片 ---------- */
.page-faq .faq-contact {
  margin-top: 26px;
  padding: clamp(20px, 3vw, 28px);
  color: var(--text-dark);
}

.page-faq .faq-contact__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: #2F6B57;
}

.page-faq .faq-contact__list {
  margin: 0 0 16px;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 3px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(74, 85, 82, .35);
}

.page-faq .faq-contact__row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-contact__row dt {
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #4A5552;
}

.page-faq .faq-contact__row dd {
  margin: 0;
  font-size: var(--step-16);
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-contact__link {
  color: #12332B;
  text-decoration: none;
  border-bottom: 1px solid rgba(18, 51, 43, .4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-contact__link:hover,
.page-faq .faq-contact__link:focus-visible {
  color: #FF6B2C;
  border-color: #FF6B2C;
  outline: none;
}

.page-faq .faq-contact__note {
  margin: 0;
  font-size: var(--step-12);
  line-height: 1.8;
  color: #4A5552;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-tail {
  margin-top: 8px;
  padding: clamp(24px, 4vw, 36px);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(47, 107, 87, .22), rgba(11, 31, 26, .1));
  display: grid;
  gap: 16px;
}

.page-faq .faq-tail__text {
  margin: 0;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.6;
  color: var(--paper);
  font-weight: 600;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-hero__stat {
    display: block;
  }

  .page-faq .faq-hero__stat-num {
    display: block;
    margin-bottom: 8px;
  }

  .page-faq .faq-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(28px, 4vw, 52px);
  }

  .page-faq .faq-hero__media {
    clip-path: polygon(9% 0, 100% 0, 100% 100%, 0 100%);
  }

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

  .page-faq .faq-toc {
    position: sticky;
    top: 92px;
  }

  .page-faq .qa__q {
    padding-right: 44px;
    font-size: 17px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-body {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tabs__item,
  .page-faq .qa__q,
  .page-faq .qa__q::after,
  .page-faq .qa__link,
  .page-faq .faq-toc__link,
  .page-faq .faq-contact__link {
    transition: none;
  }
}
<<<END>>>