.page-faq {
  --faq-ink-soft: #3A4C5E;
  --faq-line-strong: rgba(11, 34, 57, 0.16);
  --faq-line-soft: rgba(159, 179, 200, 0.28);
  --faq-cyan-soft: rgba(0, 229, 208, 0.16);
  background: var(--deep-1);
  color: var(--mist);
  font-family: var(--font-body);
}

.page-faq .faq-shell {
  padding: 0 var(--pad-x);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 0 0 48px;
  background-image:
    repeating-linear-gradient(90deg, rgba(159, 179, 200, 0.08) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(0deg, rgba(159, 179, 200, 0.08) 0 1px, transparent 1px 24px);
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 18px 0 0;
  font-size: 13px;
  color: var(--steel);
}

.page-faq .breadcrumbs__item {
  color: var(--steel);
  text-decoration: none;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(159, 179, 200, 0.5);
}

.page-faq .breadcrumbs a.breadcrumbs__item:hover {
  color: var(--cyan);
}

.page-faq .mono-label {
  margin: 32px 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 46px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--mist);
  max-width: 20em;
}

.page-faq .faq-hero__lead {
  margin: 0 0 32px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: #C6D3DF;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--faq-line-soft);
  border-top: 1px solid var(--faq-line-soft);
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 12px 16px 0;
  background: var(--deep-1);
}

.page-faq .faq-stat__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 30px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-faq .faq-stat__unit {
  margin-left: 2px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--mist);
}

.page-faq .faq-stat__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--steel);
}

/* ---------- 吸顶检索 ---------- */
.page-faq .faq-search {
  position: sticky;
  top: 0;
  z-index: 8;
  padding: 12px 0;
  background: var(--deep-1);
  border-top: 1px solid var(--faq-line-soft);
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .search-field {
  display: grid;
  gap: 6px;
}

.page-faq .search-field__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .search-field__input {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--mist);
  background: var(--deep-2);
  border: 1px solid var(--deep-3);
  border-radius: 2px;
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-faq .search-field__input::placeholder {
  color: rgba(159, 179, 200, 0.75);
}

.page-faq .search-field__input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px var(--faq-cyan-soft);
}

.page-faq .search-field__hint {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 浅色阅读区 ---------- */
.page-faq .faq-body {
  background: var(--mist);
  color: var(--ink);
  padding: 40px var(--pad-x) 64px;
}

.page-faq .faq-track {
  margin-bottom: 32px;
  padding-top: 12px;
  border-top: 2px solid var(--deep-1);
}

.page-faq .faq-track__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--deep-3);
}

.page-faq .faq-track__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-track__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--deep-1);
  text-decoration: none;
  white-space: nowrap;
  background: #FFFFFF;
  border: 1px solid var(--faq-line-strong);
  border-radius: 2px;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-faq .faq-track__link:hover,
.page-faq .faq-track__link:focus-visible {
  border-color: var(--deep-3);
  color: var(--deep-3);
}

.page-faq .faq-track__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--deep-3);
}

.page-faq .faq-track__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #6B7F92;
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-section {
  margin-bottom: 56px;
}

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

.page-faq .faq-section__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--faq-line-strong);
}

.page-faq .section-no {
  flex: none;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--deep-3);
  border: 1px solid var(--deep-3);
  border-radius: 2px;
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--deep-1);
}

.page-faq .faq-section__intro {
  margin: 0 0 22px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

/* ---------- 分类索引卡 ---------- */
.page-faq .faq-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 18px 16px;
  text-decoration: none;
  background: #FFFFFF;
  border: 1px solid var(--faq-line-strong);
  border-left: 3px solid var(--deep-3);
  border-radius: 2px;
  transition: border-left-color 160ms var(--ease), transform 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-faq .faq-card:hover,
.page-faq .faq-card:focus-visible {
  border-left-color: var(--orange);
  transform: translateY(-2px);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-card__count {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 36px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--deep-1);
}

.page-faq .faq-card__count::after {
  content: "条";
  margin-left: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--deep-3);
}

.page-faq .faq-card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--deep-1);
}

.page-faq .faq-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-card__link {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--deep-3);
}

.page-faq .faq-card__link::after {
  content: " →";
  color: var(--orange);
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa {
  background: #FFFFFF;
  border: 1px solid var(--faq-line-strong);
  border-radius: 2px;
}

.page-faq .qa + .qa {
  margin-top: -1px;
}

.page-faq .qa__head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 14px 14px 12px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__head::after {
  content: "＋";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.4;
  color: var(--deep-3);
}

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

.page-faq .qa[open] .qa__head {
  border-bottom: 1px solid var(--faq-line-strong);
  background: #FBFCFD;
}

.page-faq .qa__no {
  flex: none;
  padding-left: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--deep-3);
  border-left: 2px solid var(--cyan);
}

.page-faq .qa__q {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .qa__tag {
  flex: none;
  align-self: center;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--deep-3);
  border: 1px solid var(--faq-line-strong);
  border-radius: 2px;
}

.page-faq .qa__body {
  padding: 14px 16px 16px 30px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .qa__body p {
  margin: 0;
}

.page-faq .qa__body a {
  color: var(--deep-3);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
}

.page-faq .qa__body a:hover {
  color: var(--deep-1);
  border-bottom-color: var(--orange);
}

/* ---------- 设备标签 ---------- */
.page-faq .faq-devices {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
}

.page-faq .faq-devices .tag-morandi {
  padding: 6px 10px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--ink);
  border-radius: 2px;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 24px 0 0;
  background: #FFFFFF;
  border: 1px solid var(--faq-line-strong);
  border-radius: 2px;
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--faq-ink-soft);
  border-top: 1px solid var(--faq-line-strong);
}

/* ---------- 横向行动条 ---------- */
.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding: 14px 16px;
  background: var(--card);
  border-left: 3px solid var(--orange);
  border-radius: 2px;
}

.page-faq .faq-cta__text {
  margin: 0;
  flex: 1 1 220px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--deep-1);
}

.page-faq .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 2px;
  border: 1px solid transparent;
  transition: background-color 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-faq .btn--primary {
  color: #24100A;
  background: var(--orange);
  border-color: var(--orange);
}

.page-faq .btn--primary:hover,
.page-faq .btn--primary:focus-visible {
  background: #FF9159;
  border-color: #FF9159;
}

.page-faq .btn--ghost {
  color: var(--deep-1);
  background: transparent;
  border-color: var(--deep-3);
}

.page-faq .btn--ghost:hover,
.page-faq .btn--ghost:focus-visible {
  color: var(--deep-3);
  border-color: var(--deep-1);
}

/* ---------- 提交工单 ---------- */
.page-faq .faq-ticket {
  padding: 48px 0 56px;
  background: var(--deep-3);
  background-image:
    repeating-linear-gradient(90deg, rgba(11, 34, 57, 0.12) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(0deg, rgba(11, 34, 57, 0.12) 0 1px, transparent 1px 24px);
  color: var(--mist);
}

.page-faq .faq-section__head--invert {
  border-bottom-color: rgba(244, 247, 249, 0.3);
}

.page-faq .section-no--invert {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-section__title--invert {
  color: var(--mist);
  font-size: 21px;
}

.page-faq .faq-ticket__intro {
  margin: 0 0 28px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: #D3E0EB;
}

.page-faq .ticket-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(244, 247, 249, 0.28);
  border-top: 1px solid rgba(244, 247, 249, 0.28);
  border-bottom: 1px solid rgba(244, 247, 249, 0.28);
  margin-bottom: 28px;
}

.page-faq .ticket-step {
  padding: 18px 0 20px;
  background: var(--deep-3);
}

.page-faq .ticket-step__no {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .ticket-step__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--mist);
}

.page-faq .ticket-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: #D3E0EB;
}

.page-faq .faq-ticket .faq-figure {
  border-color: rgba(244, 247, 249, 0.28);
  background: #FFFFFF;
  margin-bottom: 28px;
}

.page-faq .faq-ticket__foot {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid rgba(244, 247, 249, 0.28);
  border-bottom: 1px solid rgba(244, 247, 249, 0.28);
  margin-bottom: 24px;
}

.page-faq .faq-ticket__contact {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #D3E0EB;
}

.page-faq .faq-mono {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  padding-left: 8px;
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-ticket__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .btn--ghost-invert {
  color: var(--mist);
  border-color: rgba(244, 247, 249, 0.5);
}

.page-faq .btn--ghost-invert:hover,
.page-faq .btn--ghost-invert:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 回执 ---------- */
.page-faq .faq-receipt {
  padding: 48px 0 64px;
  background: var(--mist);
  color: var(--ink);
}

.page-faq .faq-receipt__intro {
  margin: 0 0 24px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .receipt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .receipt-card {
  padding: 16px 18px;
  background: #FFFFFF;
  border: 1px solid var(--faq-line-strong);
  border-top: 2px solid var(--deep-3);
  border-radius: 2px;
}

.page-faq .receipt-card__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--deep-3);
}

.page-faq .receipt-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* ---------- 尾部导航 ---------- */
.page-faq .faq-more {
  padding: 36px 0 56px;
  background: var(--deep-1);
}

.page-faq .faq-more .mono-label {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-more__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-more__link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  text-decoration: none;
  background: var(--deep-2);
  border: 1px solid var(--deep-3);
  border-radius: 2px;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-more__link:hover,
.page-faq .faq-more__link:focus-visible {
  border-color: var(--cyan);
  background: #17364F;
}

.page-faq .faq-more__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  color: var(--mist);
}

.page-faq .faq-more__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-stat {
    padding: 18px 14px 18px 16px;
  }

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

  .page-faq .faq-index__grid .faq-card:first-child {
    grid-column: 1 / -1;
  }

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

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

  .page-faq .faq-section__title,
  .page-faq .faq-section__title--invert {
    font-size: 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-bottom: 64px;
  }

  .page-faq .faq-hero__lead {
    font-size: 17px;
  }

  .page-faq .faq-stat__num {
    font-size: 34px;
  }

  .page-faq .faq-body {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 56px;
    padding: 56px var(--pad-x) 80px;
  }

  .page-faq .faq-track {
    position: sticky;
    top: 96px;
    margin-bottom: 0;
    align-self: start;
  }

  .page-faq .faq-track__list {
    flex-direction: column;
    overflow: visible;
    gap: 6px;
  }

  .page-faq .faq-track__link {
    width: 100%;
    justify-content: flex-start;
    padding: 9px 10px;
  }

  .page-faq .faq-track__count {
    margin-left: auto;
  }

  .page-faq .faq-section {
    margin-bottom: 72px;
  }

  .page-faq .qa__head {
    padding: 16px 18px 16px 14px;
  }

  .page-faq .qa__q {
    font-size: 16px;
  }

  .page-faq .qa__body {
    padding: 16px 22px 18px 34px;
  }

  .page-faq .faq-figure {
    margin-top: 28px;
  }

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

  .page-faq .ticket-step {
    padding: 20px 22px 24px 0;
  }

  .page-faq .ticket-step + .ticket-step {
    padding-left: 22px;
    border-left: 1px solid rgba(244, 247, 249, 0.28);
  }

  .page-faq .faq-ticket__foot {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 24px;
  }

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

  .page-faq .faq-more__links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .btn,
  .page-faq .faq-more__link,
  .page-faq .search-field__input {
    transition: none;
  }

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