.page-faq {
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(48px, 7vw, 96px);
  overflow-x: hidden;
}

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

.page-faq .breadcrumbs {
  padding-top: clamp(14px, 2.5vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(20px, 3vw, 36px) 0 clamp(28px, 4.5vw, 56px);
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-faq .faq-hero__title {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(34px, 6.2vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
}

.page-faq .faq-hero__lede {
  max-width: 33em;
  margin: 18px 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .hero-facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 2px solid var(--ink);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
}

.page-faq .hero-fact {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .hero-fact__num {
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  color: var(--teal);
  white-space: nowrap;
}

.page-faq .hero-fact__label {
  font-size: 13px;
  color: var(--deep);
}

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

/* ---------- 四类入口 ---------- */
.page-faq .faq-picker {
  background: var(--mist);
  border-bottom: 2px solid var(--ink);
  padding: clamp(32px, 5vw, 68px) 0;
}

.page-faq .faq-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px 22px;
  align-items: start;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-head .section-num {
  font-family: var(--f-mono);
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1;
  color: var(--teal);
}

.page-faq .faq-head__title {
  font-family: var(--f-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  margin: 0;
}

.page-faq .faq-head__note {
  margin: 10px 0 0;
  max-width: 40em;
  line-height: 1.8;
}

.page-faq .picker-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .picker-card {
  background: var(--paper);
  border: var(--border);
  box-shadow: var(--shadow-hard-sm);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.page-faq .picker-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-faq .picker-card__num {
  font-size: 13px;
  color: var(--teal);
  letter-spacing: 0.08em;
}

.page-faq .picker-card__title {
  font-family: var(--f-display);
  font-size: 19px;
  font-weight: 800;
  margin: 0;
  line-height: 1.3;
}

.page-faq .picker-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
  flex: 1;
}

.page-faq .picker-card__link {
  align-self: flex-start;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--amber);
  padding-bottom: 2px;
}

.page-faq .picker-card__link:hover,
.page-faq .picker-card__link:focus-visible {
  border-bottom-color: var(--deep);
  color: var(--deep);
}

/* ---------- 主体：左侧目录 + 右侧问答 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(32px, 5vw, 72px);
}

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

.page-faq .coord-readout {
  font-size: 12px;
  color: var(--deep);
  margin: 8px 0 14px;
  letter-spacing: 0.04em;
}

.page-faq .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .rail-item {
  flex: 0 0 auto;
}

.page-faq .rail-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: color 180ms ease, border-color 180ms ease;
}

.page-faq .rail-link:hover,
.page-faq .rail-link:focus-visible {
  color: var(--teal);
  border-bottom-color: var(--amber);
}

.page-faq .rail-num {
  font-size: 12px;
  color: var(--survey);
}

.page-faq .rail-link:hover .rail-num,
.page-faq .rail-link:focus-visible .rail-num {
  color: var(--amber);
}

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

/* ---------- 问答组 ---------- */
.page-faq .qa {
  border: var(--border);
  background: var(--paper);
  box-shadow: var(--shadow-hard-sm);
  margin-bottom: 20px;
  scroll-margin-top: 24px;
  transition: box-shadow 200ms ease;
}

.page-faq .qa[open] {
  box-shadow: var(--shadow-hard);
}

.page-faq .qa__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__num {
  font-size: 13px;
  color: var(--teal);
  flex: none;
}

.page-faq .qa__title {
  font-family: var(--f-display);
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 800;
  line-height: 1.3;
  margin: 0;
}

.page-faq .qa__summary:hover .qa__title,
.page-faq .qa__summary:focus-visible .qa__title {
  color: var(--deep);
}

.page-faq .qa__body {
  background: var(--mist);
  border-top: 2px solid var(--ink);
  border-left: 6px solid var(--amber);
  padding: 20px 18px 24px;
}

.page-faq .qa__body p {
  margin: 0 0 14px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .qa__lead {
  font-family: var(--f-serif);
  font-size: 16px;
  line-height: 1.9;
  color: var(--deep);
}

.page-faq .qa__body .note {
  margin-bottom: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--deep);
}

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

.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  color: var(--teal);
}

/* ---------- 排查步骤 ---------- */
.page-faq .step-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 20px;
}

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

.page-faq .step {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  background: var(--paper);
  border: 2px solid var(--ink);
  padding: 14px 16px;
}

.page-faq .step__check {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin: 4px 0 0;
  border: 2px solid var(--ink);
  background: var(--paper);
  cursor: pointer;
  display: block;
}

.page-faq .step__check:checked {
  background: var(--amber);
  box-shadow: inset 0 0 0 3px var(--paper);
}

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

.page-faq .step__label {
  display: block;
  cursor: pointer;
}

.page-faq .step__check:checked + .step__label {
  opacity: 0.62;
}

.page-faq .step__head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .step__num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 26px;
  border: 2px solid var(--ink);
  font-size: 12px;
  font-weight: 400;
  background: var(--amber-pale);
}

.page-faq .step__desc {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
}

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

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

/* ---------- 列表与流程 ---------- */
.page-faq .check-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .check-item {
  position: relative;
  padding: 12px 14px 12px 30px;
  background: var(--paper);
  border: 2px solid var(--ink);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .check-item::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 18px;
  width: 8px;
  height: 8px;
  background: var(--amber);
  border-radius: 50%;
}

.page-faq .check-item strong {
  display: block;
  margin-bottom: 2px;
}

.page-faq .flow {
  list-style: none;
  margin: 18px 0 16px;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .flow-step {
  position: relative;
  padding: 0 0 20px 26px;
  font-size: 14px;
  line-height: 1.8;
  border-left: 2px solid var(--ink);
}

.page-faq .flow-step:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-faq .flow-step::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  background: var(--paper);
  border: 2px solid var(--ink);
}

.page-faq .flow-step__num {
  display: block;
  font-size: 12px;
  color: var(--teal);
  margin-bottom: 2px;
}

.page-faq .flow-step strong {
  display: block;
}

/* ---------- 联系人工 ---------- */
.page-faq .faq-human {
  padding-top: clamp(32px, 5vw, 64px);
  scroll-margin-top: 24px;
}

.page-faq .faq-human__panel {
  padding: clamp(24px, 4vw, 48px);
  color: var(--paper);
}

.page-faq .faq-human__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
}

.page-faq .faq-human__eyebrow {
  color: var(--amber-pale);
  margin: 0 0 12px;
}

.page-faq .faq-human__title {
  font-family: var(--f-display);
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 800;
  line-height: 1.18;
  margin: 0 0 14px;
  color: var(--paper);
}

.page-faq .faq-human__text {
  margin: 0 0 16px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-human__text--tight {
  margin-top: 16px;
  margin-bottom: 0;
  font-size: 14px;
}

.page-faq .human-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.page-faq .human-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 2px solid var(--mist);
  font-size: 14px;
  line-height: 1.5;
}

.page-faq .human-item__key {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--amber);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .faq-human__contact {
  border-top: 2px solid var(--mist);
  padding-top: 20px;
}

.page-faq .faq-human__label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber-pale);
}

.page-faq .human-dl {
  margin: 0 0 16px;
  display: grid;
  gap: 14px;
}

.page-faq .human-dl__row {
  display: grid;
  gap: 4px;
}

.page-faq .human-dl__key {
  font-size: 12px;
  color: var(--mist);
  letter-spacing: 0.04em;
}

.page-faq .human-dl__value {
  margin: 0;
  font-size: 15px;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-human__btn {
  margin-top: 22px;
}

/* ---------- 断点 ---------- */
@media (min-width: 680px) {
  .page-faq .picker-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-faq .step-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: start;
  }

  .page-faq .faq-human__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-faq .faq-human__contact {
    border-top: 0;
    border-left: 2px solid var(--mist);
    padding-top: 0;
    padding-left: 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 24px;
  }

  .page-faq .rail-list {
    display: block;
    overflow-x: visible;
    border-bottom: 0;
    border-left: 2px solid var(--ink);
    padding-bottom: 0;
    padding-left: 0;
  }

  .page-faq .rail-link {
    border-bottom: 0;
    border-left: 3px solid transparent;
    margin-left: -2px;
    padding: 10px 12px 10px 14px;
    white-space: normal;
  }

  .page-faq .rail-link:hover,
  .page-faq .rail-link:focus-visible {
    border-left-color: var(--amber);
  }
}

@media (min-width: 1040px) {
  .page-faq .picker-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .qa__summary {
    padding: 22px 24px;
  }

  .page-faq .qa__body {
    padding: 24px 24px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}
<<<END>>>