.page-faq {
  --faq-gap: clamp(20px, 3vw, 34px);
  --faq-pad: clamp(28px, 4vw, 56px);
  --faq-h1: clamp(2rem, 6vw, 3.6rem);
  --faq-cut: 18px;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: var(--faq-pad) 0 clamp(34px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(1100px 380px at 12% -12%, rgba(227, 178, 75, 0.18), transparent 62%),
    radial-gradient(760px 300px at 88% 4%, rgba(46, 140, 122, 0.16), transparent 66%),
    var(--ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(243, 239, 230, 0.55) 1px, transparent 1px),
    radial-gradient(rgba(243, 239, 230, 0.3) 1px, transparent 1px);
  background-size: 88px 88px, 146px 146px;
  background-position: 0 0, 42px 58px;
  opacity: 0.16;
}

.page-faq .faq-hero__grid,
.page-faq .faq-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

.page-faq .faq-hero__main .breadcrumb {
  margin-bottom: 18px;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: var(--faq-h1);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 16em;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--stone);
}

.page-faq .faq-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__aside {
  display: none;
}

/* ---------- 首屏三步条 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: clamp(30px, 4vw, 52px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-step {
  position: relative;
}

.page-faq .faq-step a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num label"
    "num desc";
  column-gap: 16px;
  row-gap: 6px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(24, 42, 78, 0.92), rgba(14, 27, 51, 0.92));
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
  transition: border-color 0.22s ease, background-color 0.22s ease;
}

.page-faq .faq-step a:hover,
.page-faq .faq-step a:focus-visible {
  border-color: var(--gold);
}

.page-faq .faq-step__num {
  grid-area: num;
  font-family: var(--mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  align-self: start;
}

.page-faq .faq-step__label {
  grid-area: label;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--paper);
  line-height: 1.3;
}

.page-faq .faq-step__desc {
  grid-area: desc;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: clamp(24px, 3.4vw, 40px) 0 0;
}

.page-faq .faq-figure__frame {
  border: 1px solid var(--line);
  background: var(--ink-2);
}

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

.page-faq .faq-figure__cap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-figure--inline {
  margin-top: clamp(22px, 3vw, 32px);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "toc"
    "main";
  gap: clamp(22px, 3vw, 34px);
  padding-top: clamp(30px, 4vw, 56px);
  padding-bottom: clamp(44px, 6vw, 88px);
}

/* ---------- 目录 ---------- */
.page-faq .faq-toc {
  grid-area: toc;
  position: relative;
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--stone);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-toc__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toc__list li {
  flex: 0 0 auto;
}

.page-faq .faq-toc__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  color: var(--stone);
  font-size: var(--fs-sm);
  text-decoration: none;
  white-space: nowrap;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

.page-faq .faq-toc__list a[aria-current="true"] {
  border-color: var(--gold);
  color: var(--gold-soft);
  background: rgba(227, 178, 75, 0.1);
}

.page-faq .faq-toc__list .coord {
  color: var(--gold);
  font-size: 11px;
}

/* ---------- 章节 ---------- */
.page-faq .faq-main {
  grid-area: main;
  min-width: 0;
}

.page-faq .faq-section {
  padding: clamp(26px, 3.6vw, 46px) 0;
  border-top: 1px dashed var(--line);
  scroll-margin-top: 96px;
}

.page-faq .faq-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-section__head {
  max-width: 36em;
}

.page-faq .faq-section__no {
  display: block;
  color: var(--gold);
  letter-spacing: 0.16em;
  margin-bottom: 8px;
}

.page-faq .faq-section__head h2 {
  margin: 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(1.45rem, 3.4vw, 2.3rem);
  line-height: 1.24;
  color: var(--paper);
}

.page-faq .faq-section__lead {
  margin: 14px 0 0;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--stone);
}

/* ---------- 三步详解 ---------- */
.page-faq .faq-detail-list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-detail {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--jade);
  background: rgba(24, 42, 78, 0.66);
  scroll-margin-top: 100px;
  transition: border-color 0.22s ease, background-color 0.22s ease;
}

.page-faq .faq-detail:target {
  border-color: var(--gold);
  border-left-color: var(--gold);
  background: rgba(227, 178, 75, 0.09);
}

.page-faq .faq-detail__num {
  font-family: var(--mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-detail__body h3 {
  margin: 0 0 8px;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-detail__body p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .faq-detail__trap {
  margin-top: 10px !important;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-sm) !important;
  color: var(--moss) !important;
}

/* ---------- 使用记录 ---------- */
.page-faq .faq-split {
  margin-top: clamp(20px, 2.6vw, 30px);
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-split__text p {
  margin: 0 0 14px;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--stone);
}

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

.page-faq .faq-facts {
  list-style: none;
  margin: 0;
  padding: 18px 20px;
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

.page-faq .faq-facts li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-facts .coord {
  font-size: 20px;
  font-weight: 700;
  color: var(--gold);
}

.page-faq .faq-inline-link {
  margin: 20px 0 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .faq-inline-link a,
.page-faq .faq-qa a {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 换机流程 ---------- */
.page-faq .faq-flow {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0 0 0 6px;
  display: grid;
  gap: 20px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-flow li {
  position: relative;
  padding-left: 26px;
}

.page-faq .faq-flow__dot {
  position: absolute;
  left: -6px;
  top: 6px;
  width: 11px;
  height: 11px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-faq .faq-flow li:nth-child(2) .faq-flow__dot {
  background: var(--cinnabar);
}

.page-faq .faq-flow h3 {
  margin: 0 0 6px;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-flow p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .faq-note-panel {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 16px 20px;
  border: 1px solid rgba(46, 140, 122, 0.5);
  border-left: 3px solid var(--jade);
  background: rgba(46, 140, 122, 0.1);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--paper);
}

/* ---------- 设备对照 ---------- */
.page-faq .faq-tabs {
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-tabs__bar {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .faq-tab {
  flex: 1 1 0;
  padding: 12px 16px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  color: var(--stone);
  font-family: var(--sans);
  font-size: var(--fs-body);
  font-weight: 700;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: color 0.22s ease, border-color 0.22s ease, background-color 0.22s ease;
}

.page-faq .faq-tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}

.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 2px;
}

.page-faq .faq-tabs__panel {
  padding: 22px;
  border: 1px solid var(--line);
  background: rgba(24, 42, 78, 0.7);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

.page-faq .faq-tabs__panel--pad {
  border-top: 3px solid var(--gold);
}

.page-faq .faq-tabs__panel--phone {
  border-top: 3px solid var(--jade);
}

.page-faq .faq-tabs__lead {
  margin: 0 0 18px;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--paper);
}

.page-faq .faq-spec {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-spec > div {
  display: grid;
  grid-template-columns: minmax(0, 6.5em) minmax(0, 1fr);
  gap: 14px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-spec dt {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-top: 3px;
}

.page-faq .faq-spec dd {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--stone);
}

/* ---------- 常见问题折叠 ---------- */
.page-faq .faq-qa-list {
  margin-top: clamp(20px, 2.6vw, 30px);
  display: grid;
  gap: 10px;
}

.page-faq .faq-qa {
  border: 1px solid var(--line);
  background: rgba(24, 42, 78, 0.55);
  transition: border-color 0.22s ease;
}

.page-faq .faq-qa[open] {
  border-color: rgba(227, 178, 75, 0.5);
}

.page-faq .faq-qa summary {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: var(--fs-body);
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper);
}

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

.page-faq .faq-qa summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 22px;
  line-height: 1;
  color: var(--gold);
  transition: transform 0.22s ease;
}

.page-faq .faq-qa[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-qa summary:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: -2px;
}

.page-faq .faq-qa p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--stone);
  max-width: 36em;
}

/* ---------- 联系 ---------- */
.page-faq .faq-section--help {
  border-top: 1px solid var(--line);
}

.page-faq .faq-help {
  margin-top: clamp(20px, 2.6vw, 30px);
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr);
  padding: clamp(20px, 2.8vw, 30px);
  background:
    radial-gradient(600px 220px at 100% 0%, rgba(210, 80, 60, 0.18), transparent 70%),
    var(--char);
  border-left: 3px solid var(--gold);
}

.page-faq .faq-help__channels {
  display: grid;
  gap: 14px;
}

.page-faq .faq-help__item {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-help__item .coord {
  display: block;
  margin-bottom: 4px;
  color: var(--gold);
  letter-spacing: 0.14em;
}

.page-faq .faq-help__item a {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(246, 217, 138, 0.5);
}

.page-faq .faq-help__tips p {
  margin: 0 0 12px;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--stone);
}

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

.page-faq .faq-help__tips a {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 平板 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .page-faq .faq-step a {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "num"
      "label"
      "desc";
    padding: 20px 20px 22px;
    row-gap: 10px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 28px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .faq-hero__aside {
    display: block;
    padding-top: 46px;
    border-left: 1px solid var(--line);
    padding-left: 22px;
  }

  .page-faq .faq-hero__aside .note-v {
    color: var(--stone);
  }

  .page-faq .faq-hero__jump {
    list-style: none;
    margin: 22px 0 0;
    padding: 0;
    display: grid;
    gap: 12px;
  }

  .page-faq .faq-hero__jump a {
    display: block;
    padding-bottom: 10px;
    border-bottom: 1px dotted var(--line-strong);
    font-size: var(--fs-sm);
    line-height: 1.6;
    color: var(--gold-soft);
    text-decoration: none;
  }

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

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 236px;
    grid-template-areas: "main toc";
    gap: clamp(36px, 5vw, 68px);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 92px;
    align-self: start;
    border-left: 1px solid var(--line);
    padding-left: 20px;
  }

  .page-faq .faq-toc__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc__list a {
    display: flex;
    padding: 9px 0;
    border: 0;
    background: none;
    white-space: normal;
    clip-path: none;
    border-bottom: 1px dotted var(--line);
    font-size: var(--fs-sm);
    line-height: 1.6;
  }

  .page-faq .faq-toc__list a[aria-current="true"] {
    background: none;
    color: var(--gold-soft);
    border-bottom-color: var(--gold);
  }

  .page-faq .faq-detail {
    padding: 24px 26px;
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step a,
  .page-faq .faq-detail,
  .page-faq .faq-tab,
  .page-faq .faq-qa,
  .page-faq .faq-qa summary::after {
    transition: none;
  }
}
<<<END>>>