.page-faq {
  background: var(--mist);
  color: var(--ink);
}

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

.page-faq .section {
  padding-block: clamp(40px, 6vw, 80px);
}

.page-faq .section-head__title {
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
}

.page-faq .section-head__note {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
  margin: 0;
}

/* ---------- hero ---------- */
.page-faq .faq-hero {
  background:
    radial-gradient(90% 70% at 88% 0%, rgba(11, 26, 43, 0.9) 0%, rgba(11, 26, 43, 0) 62%),
    var(--green);
  color: var(--mist);
  padding: clamp(20px, 3vw, 36px) 0 clamp(28px, 5vw, 56px);
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-hero .breadcrumb {
  margin: 0 0 clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero .breadcrumb a,
.page-faq .faq-hero .breadcrumb li {
  color: var(--on-dark-dim);
}

.page-faq .faq-hero .breadcrumb a:hover {
  color: var(--orange);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(20px, 4vw, 48px);
}

.page-faq .faq-hero__main,
.page-faq .faq-hero__aside {
  min-width: 0;
}

.page-faq .faq-hero .eyebrow {
  color: var(--on-dark-dim);
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  font-size: clamp(32px, 5.4vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 0 0 clamp(14px, 2vw, 22px);
  max-width: 14em;
}

.page-faq .faq-hero__lead {
  max-width: 36em;
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--on-dark);
}

.page-faq .faq-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-meta li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-meta__k {
  flex: 1 1 auto;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--on-dark-dim);
}

.page-faq .faq-meta__v {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .faq-status {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--signal);
  border: 1px solid rgba(30, 143, 99, 0.55);
  padding: 2px 6px;
  white-space: nowrap;
}

.page-faq .faq-hero__figure {
  margin: clamp(26px, 4vw, 48px) 0 0;
  padding-top: clamp(16px, 2vw, 24px);
  border-top: 1px solid var(--hair);
}

.page-faq .faq-hero__figure .media {
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--hair-soft);
  background: rgba(245, 247, 246, 0.04);
}

.page-faq .faq-hero__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-hero__figure .figure__cap {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--on-dark-dim);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
}

/* ---------- three steps ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--line);
  position: relative;
}

.page-faq .faq-step {
  position: relative;
  padding: clamp(20px, 3vw, 30px) 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 14px;
  border: 1px solid var(--orange);
  color: var(--orange);
  font-size: 13px;
  letter-spacing: 0.12em;
  background: var(--mist);
}

.page-faq .faq-step__title {
  margin: 0 0 8px;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.45;
  letter-spacing: -0.005em;
}

.page-faq .faq-step__text {
  margin: 0;
  max-width: 30em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--gray);
}

.page-faq .faq-step__where {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.page-faq .faq-step__where--static {
  color: var(--gray);
  border-bottom: 0;
}

@media (min-width: 820px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-steps::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 42px;
    border-top: 1px dashed var(--line);
    pointer-events: none;
  }

  .page-faq .faq-step {
    padding-inline: clamp(16px, 2.5vw, 32px);
    border-bottom: 0;
  }

  .page-faq .faq-step:first-child {
    padding-left: 0;
  }

  .page-faq .faq-step + .faq-step {
    border-left: 1px solid var(--line);
  }
}

/* ---------- where ---------- */
.page-faq .faq-where {
  background: var(--card);
  border-block: 1px solid var(--line);
}

.page-faq .faq-where__grid {
  display: grid;
  gap: clamp(24px, 4vw, 56px);
}

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

.page-faq .faq-where h2 {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.015em;
}

.page-faq .faq-where__text {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray);
}

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

.page-faq .faq-cats {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-cat {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 2px 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-cat__num {
  grid-row: span 2;
  padding-top: 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-faq .faq-cat__name {
  font-size: 16px;
  font-weight: 700;
}

.page-faq .faq-cat__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

@media (min-width: 900px) {
  .page-faq .faq-where__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }
}

/* ---------- filter ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 16px;
  margin: clamp(20px, 3vw, 32px) 0 clamp(18px, 2.6vw, 28px);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-filter__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-filter .filter-bar__btn {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 7px 12px;
  background: transparent;
  color: var(--gray);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}

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

.page-faq .faq-filter .filter-bar__count {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gray);
}

@media (max-width: 620px) {
  .page-faq .faq-filter__btns {
    flex-wrap: nowrap;
    overflow-x: auto;
    width: 100%;
    padding-bottom: 4px;
  }

  .page-faq .faq-filter .filter-bar__btn {
    flex: 0 0 auto;
  }
}

/* ---------- layout ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(22px, 3vw, 48px);
}

.page-faq .faq-side {
  min-width: 0;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

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

.page-faq .faq-side__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 12px;
}

.page-faq .faq-side__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 0;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.18s ease;
}

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

.page-faq .faq-side__list .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-faq .faq-side__note {
  margin: 0;
  font-size: 12px;
  line-height: 1.75;
  color: var(--gray);
}

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

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 200px minmax(0, 1fr);
  }

  .page-faq .faq-side {
    position: sticky;
    top: 84px;
    align-self: start;
  }

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

/* ---------- groups & items ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(28px, 4vw, 48px);
}

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

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 4px;
  padding-left: 0;
  border-left: 2px solid transparent;
  font-size: clamp(18px, 2.2vw, 24px);
  letter-spacing: -0.01em;
  transition: border-color 0.2s ease, padding-left 0.2s ease;
}

.page-faq .faq-group:target .faq-group__title {
  border-left-color: var(--orange);
  padding-left: 10px;
}

.page-faq .faq-group__tag {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-faq .faq-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: clamp(10px, 2vw, 20px);
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item__num {
  padding-top: 5px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

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

.page-faq .faq-item__q {
  margin: 0 0 8px;
  font-size: clamp(16px, 1.8vw, 19px);
  line-height: 1.45;
  letter-spacing: -0.005em;
  font-weight: 700;
}

.page-faq .faq-item__lead {
  margin: 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--gray);
}

.page-faq .faq-item .fold {
  margin-top: 12px;
}

.page-faq .faq-item .fold__trigger {
  padding: 0 0 2px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  cursor: pointer;
}

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

.page-faq .faq-item .fold__trigger::before {
  content: "+ ";
}

.page-faq .faq-item .fold__trigger[aria-expanded="true"]::before {
  content: "− ";
}

.page-faq .faq-item .fold__panel {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-item .fold__panel p {
  margin: 0 0 10px;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-faq .faq-item .fold__panel a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-path {
  display: inline-block;
  max-width: 100%;
  overflow-x: auto;
  vertical-align: baseline;
  padding: 2px 6px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--green);
  background: var(--card);
  border: 1px solid var(--line);
  white-space: nowrap;
  cursor: copy;
}

.page-faq .faq-copy,
.page-faq .faq-version__copy {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 7px 12px;
  background: transparent;
  color: inherit;
  border: 1px solid currentColor;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-copy {
  color: var(--orange);
}

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

.page-faq [data-copied]::after {
  content: " 已复制";
  color: var(--signal);
}

@media (min-width: 720px) {
  .page-faq .faq-item {
    grid-template-columns: 56px minmax(0, 1fr);
  }
}

/* ---------- device figure ---------- */
.page-faq .faq-device {
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding-top: clamp(16px, 2.4vw, 24px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-device .media {
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  background: var(--card);
}

.page-faq .faq-device img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-device .figure__cap {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gray);
}

/* ---------- version & contact ---------- */
.page-faq .faq-version {
  background:
    radial-gradient(80% 80% at 18% 0%, rgba(196, 85, 42, 0.18) 0%, rgba(196, 85, 42, 0) 62%),
    var(--blue);
  color: var(--mist);
  border-top: 1px solid var(--hair);
}

.page-faq .faq-version__grid {
  display: grid;
  gap: clamp(24px, 4vw, 56px);
}

.page-faq .faq-version__panel,
.page-faq .faq-contact {
  min-width: 0;
}

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

.page-faq .faq-version h2 {
  margin: 0 0 18px;
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  max-width: 16em;
}

.page-faq .faq-version p {
  margin: 0 0 14px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--on-dark);
}

.page-faq .faq-version__badge {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  padding: 16px 0;
  border-block: 1px solid var(--hair);
}

.page-faq .faq-version__num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(32px, 4.6vw, 52px);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .faq-version__copy {
  color: var(--mist);
  border-color: var(--hair);
}

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

.page-faq .faq-contact {
  border-top: 1px solid var(--hair);
  padding-top: 18px;
}

.page-faq .faq-contact h3 {
  margin: 0 0 12px;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.4;
}

.page-faq .faq-contact__mail {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: clamp(14px, 1.9vw, 18px);
  letter-spacing: 0.02em;
  color: var(--amber);
  word-break: break-all;
}

.page-faq .faq-contact__more {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--on-dark-dim);
}

.page-faq .faq-contact__more a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

.page-faq .faq-contact__more a:hover {
  color: var(--orange);
}

@media (min-width: 900px) {
  .page-faq .faq-version__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}
<<<END>>>