.page-faq {
  --faq-gap: clamp(16px, 2.4vw, 30px);
  background: var(--ink-900);
  color: var(--ice);
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 76px 76px;
  opacity: 0.34;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 85%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 85%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(20px, 3vw, 30px) clamp(28px, 4vw, 46px);
}

.page-faq .crumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}

.page-faq .crumbs a:hover {
  color: var(--orange-soft);
  border-bottom-color: var(--orange-soft);
}

.page-faq .crumbs__sep {
  display: inline-block;
  margin: 0 8px;
  color: var(--line);
}

.page-faq .faq-h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(34px, 6vw, 66px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin: 18px 0 0;
  max-width: 22ch;
}

.page-faq .faq-h1 em {
  font-style: normal;
  color: var(--orange);
  display: block;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
}

/* ---------- 分类筛选 ---------- */
.page-faq .filter-bar {
  display: flex;
  gap: 8px;
  margin-top: clamp(22px, 3vw, 32px);
  padding-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .filter-bar::-webkit-scrollbar {
  height: 4px;
}

.page-faq .filter-bar::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 0;
}

.page-faq .filter-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--ink-800);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.15s var(--ease), background 0.15s var(--ease), border-color 0.15s var(--ease);
}

.page-faq .filter-btn:hover {
  color: var(--ice);
  border-color: var(--orange-soft);
}

.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
  font-weight: 700;
}

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

.page-faq .filter-btn__n {
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  opacity: 0.72;
}

.page-faq .faq-tally {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-tally__n {
  color: var(--lime);
  font-size: 16px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ---------- 主体网格 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-block: clamp(28px, 4vw, 52px);
}

.page-faq .faq-aside {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-faq .faq-shot {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  max-width: 100%;
}

.page-faq .faq-shot__cap {
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

.page-faq .faq-legend {
  border: 1px solid var(--line);
  background: var(--ink-800);
  padding: 14px 16px;
}

.page-faq .faq-legend__title,
.page-faq .faq-quick__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-legend__row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

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

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

.page-faq .faq-quick__list a {
  display: block;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--ice);
  text-decoration: none;
  transition: color 0.15s var(--ease), padding-left 0.15s var(--ease);
}

.page-faq .faq-quick__list li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-quick__list a:hover {
  color: var(--orange-soft);
  padding-left: 6px;
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
  min-width: 0;
}

.page-faq .qa {
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.page-faq [data-filter-item][hidden],
.page-faq [data-filter-item].is-hidden {
  display: none !important;
}

.page-faq .qa__sum {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
  transition: background 0.15s var(--ease);
}

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

.page-faq .qa__sum:hover {
  background: var(--ink-800);
}

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

.page-faq .qa__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--mist);
}

.page-faq .qa__q {
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ice);
}

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

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

.page-faq .qa__flag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--mist);
}

.page-faq .qa__flag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.page-faq .qa__flag--self {
  color: var(--grass);
  border-color: rgba(47, 191, 113, 0.35);
}

.page-faq .qa__flag--ticket {
  color: var(--orange-soft);
  border-color: rgba(255, 138, 92, 0.35);
}

.page-faq .qa__body {
  padding: 0 4px 22px 38px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .qa__body p {
  margin: 0 0 10px;
  max-width: 66ch;
}

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

.page-faq .qa__lead {
  color: var(--ice);
  font-weight: 500;
  border-left: 2px solid var(--orange);
  padding-left: 12px;
}

.page-faq .qa__steps {
  list-style: none;
  counter-reset: step;
  margin: 14px 0 12px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .qa__steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .qa__steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--orange);
  padding-top: 2px;
}

.page-faq .qa__link {
  margin: 14px 0 0;
  font-size: 14px;
}

.page-faq .qa__link a {
  color: var(--orange-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 138, 92, 0.4);
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}

.page-faq .qa__link a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 现场区块 ---------- */
.page-faq .faq-field-wrap {
  padding-block: clamp(20px, 3vw, 36px);
}

.page-faq .faq-field {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 34px);
  align-items: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: clamp(24px, 4vw, 44px);
}

.page-faq .faq-field__text .eyebrow {
  margin: 0 0 12px;
}

.page-faq .faq-field__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-field__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-field__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 2px;
  background: var(--orange);
}

.page-faq .faq-field__list strong {
  color: var(--ice);
  font-weight: 500;
}

.page-faq .faq-field__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

.page-faq .media__caption {
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

/* ---------- 工单引导 ---------- */
.page-faq .faq-help {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(20px, 3.4vw, 40px);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), rgba(255, 90, 31, 0));
}

.page-faq .faq-help__text {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ice);
}

.page-faq .faq-help__list li {
  padding: 8px 12px;
  background: var(--ink-700);
  border-left: 2px solid var(--orange-soft);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
}

.page-faq .faq-help__side {
  border-top: 1px solid var(--line);
  padding-top: clamp(16px, 2vw, 22px);
}

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

.page-faq .faq-contact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-contact dd {
  margin: 5px 0 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ice);
  word-break: break-word;
}

.page-faq .faq-copy {
  margin-left: 8px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: transparent;
  color: var(--orange-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  cursor: pointer;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}

.page-faq .faq-copy:hover {
  color: var(--lime);
  border-color: var(--lime);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-field {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-shell {
    grid-template-columns: 300px minmax(0, 1fr);
    align-items: start;
  }

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

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-help__side {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: clamp(18px, 2.6vw, 32px);
  }
}

@media (max-width: 640px) {
  .page-faq .qa__sum {
    grid-template-columns: 22px minmax(0, 1fr) 10px;
    gap: 10px;
    padding: 15px 2px;
  }

  .page-faq .qa__q {
    font-size: 15px;
  }

  .page-faq .qa__flag {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    font-size: 0;
    gap: 0;
    overflow: hidden;
  }

  .page-faq .qa__flag::before {
    width: 10px;
    height: 10px;
  }

  .page-faq .qa__body {
    padding: 0 2px 20px 32px;
    font-size: 14px;
  }

  .page-faq .qa__steps {
    gap: 8px;
  }

  .page-faq .qa__steps li {
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 8px;
    font-size: 13.5px;
  }

  .page-faq .faq-h1 {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .filter-btn,
  .page-faq .qa__sum,
  .page-faq .qa__link a,
  .page-faq .crumbs a,
  .page-faq .faq-quick__list a,
  .page-faq .faq-copy {
    transition: none;
  }
}
<<<END>>>